This standard specifies the technical requirements and measurement methods for infrared remote control transmitters used with television broadcast receivers. This standard applies to infrared remote control transmitters used with television sets, and can also be used as a reference for infrared remote control transmitters used with similar products with infrared remote control functions. GB/T 14960-1994 Technical requirements and measurement methods for infrared remote control transmitters used with television broadcast receivers GB/T14960-1994 Standard download decompression password: www.bzxz.net

UDC621.397
National Standard of the People's Republic of China
GB/T 14960—94
Technical requirements and methods of measurement ofinfraredremotecontrolradiationunitfortelevisionbroadcastreceiversPromulgated on April 4, 1994
State Administration of Technical Supervision
Implementation on November 1, 1994
National Standard of the People's Republic of China
Technical requirements and methods of measurement ofinfraredremotecontrolradiationunitfortelevisionbroadcastreceivers1 Subject content and scope of application
GB/T14960—94
This standard specifies the technical requirements and measurement methods for infrared remote control transmitters used with television broadcast receivers (hereinafter referred to as television sets). This standard applies to infrared remote control transmitters for television sets (hereinafter referred to as remote controls), and can also be used as a reference for infrared remote control transmitters for similar products with infrared remote control functions. 2 Reference standards
GB2423.1 Basic environmental test procedures for electric and electronic products Test A: Low temperature test method GB2423.2 Basic environmental test procedures for electric and electronic products Test B: High temperature test method GB2423.10 Basic environmental test procedures for electric and electronic products Test Fc: Vibration (sinusoidal) test method GB5465.2 Graphic symbols for electrical equipment
GB9372 Measurement methods for television broadcast receivers GB9384 Environmental test requirements and test methods for broadcast radios, broadcast television receivers, tape recorders, and audio power amplifiers (amplifiers)
3 Terms
3.1 Infrared remote control transmitter infrared remote control radiation unit A device that transmits infrared light modulated by a coded pulse signal through an infrared transmitting device to control the relevant functions of the corresponding equipment at a certain distance is called an infrared remote control transmitter.
3.2 Infrared remote control television broadcast receiver television broadcast receiver with infrared remote control system A television that can receive instructions from an infrared remote control transmitter at a certain distance and control the relevant functions of the television is called an infrared remote control television broadcast receiver.
3.3 Standby state stand-by
The power supply of the television is cut off, but the power supply of the remote control receiving part is not cut off. This state is called standby state. 3.4 Muting
When the infrared remote control transmitter sends a command to make the television broadcast receiver silent, this state is called muting. 3.5 Irradiance irradiance
The power projected on a unit area, emitted, transmitted or received in the form of radiation. The unit is watt/square meter (W/m) or microwatt/square centimeter (μW/cm2).
Approved by the State Administration of Technical Supervision on April 4, 1994, and implemented on November 1, 1994
4 Measurement conditions
GB/T14960—94
Unless otherwise specified, all measurements shall be carried out under the relevant measurement conditions specified in Chapter 3 of GB9372. General requirements
5.1 Appearance
5.1.1 Requirements
The appearance of the remote control shall not be scratched, stained, cracked, deformed, discolored, dented, burred, moldy, plating peeled off, or loose in structure. 5.1.2 Inspection method
Inspect by visual inspection and hand feel.
5.2 Structural dimensions
5.2.1 Requirements
The structural dimensions shall comply with the product design regulations. 5.2.2 Measurement method
Measure with measuring tools of corresponding accuracy.
5.3 Model naming
Model naming shall comply with the provisions of Appendix B (Supplement). 5.4 Signs
5.4.1 Requirements
Signs and graphic symbols shall comply with the provisions of GB5465.2 and Appendix A (Supplement). a.
When in use, they shall be clearly visible and not misleading. b.
cThe nameplate shall not be lifted or fall off.
5.4.2 Inspection method
Inspect by visual inspection.
5.5 Signs
5.5.1 Requirements
a. It shall have the manufacturer's name and registered trademark;
b. It shall have the model.
If used in conjunction with a TV, it may also have the same model, manufacturer's name and registered trademark as the TV. 5.5.2 Inspection method
Inspect by visual inspection.
5.6 Instructions for use
5.6.1 Requirements
There should be an instruction manual, which should include the following: how to use the remote control;
the purpose of each button;
the power supply voltage and scope of use;
usage conditions and precautions, etc.
If used in conjunction with a TV, it can also be explained in the TV's instruction manual. 5.6.2 Inspection method
Inspect by visual inspection.
6 Appearance performance
6.1 Surface hardness
6.1.1 Requirements
GB/T14960—94
The surface of the remote control (including characters and graphic symbols) should have a hardness of 2H or above that of a pencil lead. 6.1.2 Test method
Use a 2H hardness Zhonghua brand pencil (pen core is cylindrical), with the pen core at a 45° angle to the surface of the remote control, and apply a force of 10N to move the pencil forward 10mm at a uniform speed on the surface of the remote control. Test on three different parts of the surface of the remote control (including characters and graphic symbols). There should be no obvious scratches.
6.2 Warm water resistance
6.2.1.Requirement
Can withstand 60℃ warm water. The color of the remote control should not change, and the characters and logos should not be erased. 6.2.2 Test method
Use a dropper to drop 60℃ warm water on three different parts of the surface of the remote control (including characters and graphic symbols). Drop 0.1mL on each part, with an area of ​​about 1cm2, and then wipe it dry with a soft cloth. Check whether the surface color of the remote control changes and whether the characters and logos are erased. 6.3 Adhesion of characters, logos and painted parts 6.3.1 Requirements
After sticking the characters, logos and painted parts of the remote control with transparent tape, there should be no falling off. 6.3.2 Test method
Use transparent tape with an adhesion of 2 to 3.5 N/cm, press the transparent tape flat on the character mark and painted parts of the remote control, with an area of ​​at least 1 cm, apply a force perpendicular to the surface of the remote control (the part with the transparent tape), and then quickly pull the tape off. Repeat three times on the same part to check whether the characters, logos and painted parts have fallen off. 6.4 Solvent resistance
6.4.1 Requirements
The surface of the remote control can withstand 20% salt water, anhydrous ethanol, and edible oil solvents. The surface hardness and appearance should not be abnormal, and the characters and logos should be clear.
6.4.2 Test method
a. Use a cotton ball or soft cloth soaked in 20% salt water to gently wipe the surface of the remote control (including the key character area) 30 times, check the surface hardness according to the provisions of Article 6.1, and use the visual inspection method to check whether the appearance of the remote control is abnormal, and whether the characters and logos are clear; b. Repeat the test in item a with anhydrous ethanol,
c. Use a dropper to drop edible oil (peanut oil, soybean oil or rapeseed oil) on three different parts of the surface of the remote control (including the characters and graphic symbols), 0.1mL per part, with an area of ​​about 1cm, and wipe it dry with a soft cloth after 1 hour. Check the surface hardness according to the provisions of Article 6.1, and use the visual inspection method to check whether the appearance of the remote control is abnormal, and whether the characters and logos are clear. 7 Electrical performance
7.1 Peak infrared irradiance of remote control
7.1.1 Requirements
The peak infrared irradiance of the remote control shall not be less than 40μW/cm2. 7.1.2 Measurement method
Measure with an infrared peak irradiance meter under the condition of natural light or fluorescent lamp 200±501x ambient illumination and the rated working voltage of the power supply voltage of the remote control. The horizontal and vertical axis distance between the remote control emission point and the peak irradiance meter is 0.5m away, press each button of the remote control to emit infrared light signals, and record the peak irradiance of infrared light of the remote control. 7.2 Directivity
7.2.1 Requirements
GB/T14960-94
When the peak irradiance of infrared light emitted by the remote control is 20uW/cm2, the cone angle with the remote control emission point as the vertex should be no less than 30°7.2.2 Measurement method
Under the ambient illumination of natural light or fluorescent lamp 200±501x, and the power supply voltage used by the remote control is the rated working voltage, use an infrared peak irradiance meter to measure. At a distance of 0.5m between the horizontal and vertical axes of the remote control emission point and the light receiving point of the peak irradiance meter, rotate the remote control with the horizontal axis as the 0° reference. When the infrared peak irradiance is 20μW/cm2, measure the cone angle with the remote control emission point as the vertex, and only record the angles of up, down, left and right with the horizontal axis as the 0° reference. 7.3 Peak irradiance of infrared light of remote controller under undervoltage condition 7.3.1 Requirement
When the power supply voltage of remote controller is 75% of the rated working voltage, the peak irradiance of infrared light of remote controller shall be no less than 20μW/cm.
7.3.2 Measurement method
Use a DC regulated power supply, connect a 10Ω resistor in series to the positive end of the output voltage, and then connect the remote controller. Adjust the power supply output voltage so that the power supply voltage of the remote controller is 75% of the rated value. Measure according to the measurement method in 7.1.2 and record the peak irradiance of infrared light of the remote controller.
7.4 Directivity of remote control under undervoltage conditions 7.4.1 Requirements
When the infrared peak irradiance of the remote control is 10μW/cm, the cone angle with the remote control emission point as the vertex is not less than 30° 7.4.2 Measurement method
Use a DC regulated power supply, connect a 10Q resistor in series to the positive end of the output voltage, and then connect the remote control. Adjust the power supply output voltage so that the power supply voltage used by the remote control is 75% of the rated value. According to the measurement method of Article 7.2.2, when the infrared peak irradiance is 10uW/cm2, only record the angles of up, down, left and right with the horizontal axis as the 0° reference. 7.5 Functional inspection
7.5.1 Requirements
The functions of each button of the remote control should be normal.
7.5.2 Inspection method
Under the environment of natural light or fluorescent light with an illumination of 200±501x, use a remote control function tester or a corresponding remote control TV set, within the range of the remote control working voltage, press the buttons of the remote control at a distance of 3m from the tester or remote control TV set to check whether the functions of the remote control are normal.
7.6 Static working current
7.6.1 Requirement
The static working current should not be greater than 3uA.
7.6.2 Measurement method
Under the environment of natural light or fluorescent light with an illumination of 200±501x, the power supply voltage of the remote control is the rated working voltage value, and when the buttons of the remote control are not pressed, use an ammeter to measure the static working current of the remote control. 8 Mechanical properties
8.1 Button height
8.1.1 Requirement
The height of each button of the remote control before being pressed should not be greater than 3mm. When the buttons of the remote control are pressed and work, the height of the buttons should not be less than 0.5mm. 8.1.2 Measurement method
Measure with a vernier caliper or special tools, taking the remote control panel as the reference. 4
8.2 Load force when pressing buttons
8.2.1 Requirements
GB/T14960—94
When pressing the buttons of the remote control to work, there should be a feel, and the load force of each button should be within the range of 0.8 to 1.5N. The discreteness of the load force of each button of the same remote control is not greater than 0.4N. 8.2.2 Measurement method
Use a dynamometer to measure the load force of each button, and check the feel of each button of the remote control by hand. 8.3 Compression strength
8.3.1 Requirements
Apply a load of 30N vertically to the center of the button operation plane of the remote control and press for 3 minutes. Each button should be free of damage and function normally, and still meet the technical index requirements specified in Articles 8.1.1 and 8.2.1. 8.3.2 Measurement method
Measure with a dynamometer. Apply a load of 30N vertically to the center of the button operation plane of the remote control and press for 3 minutes. Then check each button according to the relevant provisions in Articles 8.1 and 8.2, and check whether the remote control function of the remote control is normal according to Article 7.5. 8.4 Reset of buttons
8.4.1 Requirements
According to the positions shown in Figures 1 and 2, apply a force of 10N to the left and right ends of the remote control buttons at about 1/4 of the position and the left, right, front and rear sides of the buttons. After pressing for 2 minutes, the positions of the buttons should be completely reset and meet the requirements of Articles 8.1.1 and 8.2.1. The functions of the buttons are normal.
Schematic diagram of pressing positions
Schematic diagram of pressing sides
8.4.2 Measurement method
Use a dynamometer to apply a force of 10N to the left and right ends of the buttons at about 1/4 of the position and the left, right, front and rear sides of the buttons at the positions shown in Figures 1 and 2, and press for 3 minutes. Then check the buttons according to the relevant provisions in Articles 8.1.1 and 8.2.1, and check whether the functions of the buttons are normal according to Article 7.5.
8.5 Load life of keys
8.5.1 Requirements
When pressing the keys of the remote control to work, the load life of the keys shall not be less than 200,000 times, of which the number of times the keys are not in place shall not exceed 0.5%. 8.5.2 Measurement method
Use the remote control key life automatic tester to continuously press each key of the remote control and make the remote control work normally. At the same time, record the number of times the 5
GB/T14960—94
key of the remote control is pressed, and automatically detect the number of times the keys of the remote control are not in place. 8.6 Overall compressive strength of the remote control
8.6.1 Requirements
When the remote control is equipped with batteries, a vertical force of 100N is applied to the front and bottom of the remote control respectively. The remote control should not be damaged and the remote control function is normal.
8.6.2 Measurement method
Put the remote control on a wooden board not less than 3cm thick, and place a wooden board about 0.5cm thick and basically the same size and shape as the remote control on the front and bottom of the remote control. Apply a force of 100N vertically on the wooden board and press for 1min. Then check the remote control buttons according to the relevant provisions in Articles 5.1, 8.1 and 8.2, and check whether the functions of each button of the remote control are normal according to Article 7.5. 8.7 Plug-in and pull-out life of the power cover
8.7.1 Requirements
Continuously insert and pull out the power cover of the remote control for no less than 100 times, and there should be no abnormality. 8.7.2 Measurement method
After continuously inserting and pulling out the power cover of the remote control 100 times at a speed of 2 to 3 times per minute, there should be no abnormality. 9 Environmental test
9.1 High temperature storage test
9.1.1 Requirements
The remote control shall be placed in an environment with a temperature of 55℃ for 2 hours and then restored for 2 hours. It shall comply with the provisions of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1.
9.1.2 Test method
The test equipment shall comply with the relevant provisions in Chapter 18 of GB2423.2. The remote control shall be placed in a test chamber with room temperature without packaging or batteries. The temperature in the test chamber shall rise at an average rate of 0.71℃/min and gradually rise to 55±2℃. When the remote control reaches a stable temperature, it shall be placed for 2 hours. Then the temperature in the test chamber is reduced to the normal test atmospheric conditions at an average rate of 0.7~1℃/min. Take out the remote control. After 2 hours of recovery, check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the high temperature test, it should be tested again after it disappears. 9.2 Steady-state damp heat test
9.2.1 Requirements
After the remote control is left for 96 hours under the environmental conditions of 40℃ and relative humidity of 93%, it shall meet the requirements of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1 after 4 hours of recovery. 9.2.2 Test method
The test equipment shall comply with the provisions of Article 2.3.2 of GB9384. The remote control shall be placed in a test chamber at room temperature without packaging or batteries. The chamber temperature shall be adjusted to 40±2°C. When the temperature of the remote control reaches a stable level, humidity shall be added and the test chamber shall be left for 48 hours at a relative humidity of (93)%. The relative humidity in the test chamber shall be adjusted to 0.The temperature in the test chamber should be reduced to 75% ± 3% within 5 hours, and then the temperature in the test chamber should be adjusted to the normal test atmosphere within 0.5 hours. Take out the remote control, and after 4 hours of recovery, check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the constant humidity and heat test, it should be tested again after it disappears. 9.3 Low temperature storage test
9.3.1 Requirements Www.bzxZ.net
When the remote control is set aside for 2 hours in a temperature of -25℃, it should be restored for 2 hours and meet the requirements of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1.
9.3.2 Test method
GB/T14960—94
The test equipment shall comply with the provisions of Chapter 18 of GB2423.1. The remote control shall be placed in a test chamber at room temperature without packaging or batteries (in order to prevent condensation, the remote control may be tested after being sealed with a plastic film, and a desiccant may be placed in the sealing sleeve if necessary). The temperature in the test chamber shall be reduced to -25±2°C at an average rate of 0.5~1°C/min. When the remote control reaches a stable temperature, it shall be left for 2 hours. Then the temperature in the test chamber shall be raised to normal test atmospheric conditions at an average rate of 0.5~~1°C/min. The remote control shall be taken out and restored for 2 hours. Check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. 9.4 Temperature change test
9.4.1 Requirements
The remote control shall be able to withstand the temperature cycle change test shown in Figure 3. After a total of 5 cycles of tests, it shall comply with the provisions of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1. Test run machine
Figure 3 Schematic diagram of temperature cycle change in temperature change test 9.4.2 Test method
The test equipment shall comply with the provisions of Article 2.6.2 of GB9384. The remote control shall be placed in a test box at room temperature without packaging or batteries. The temperature in the test chamber is reduced to -10±3°C at a cooling rate of 1±0.5°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, the temperature is kept constant for 3 hours, and then the temperature in the test chamber is increased to 40±2°C at a heating rate of 1±0.2°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, it is kept for 3 hours, and then the temperature in the test chamber is reduced to the test room ambient temperature at a cooling rate of 1±0.2°C/min (average rate within 5 minutes). The above constitutes a test cycle, and five test cycles are carried out in sequence. After the test is completed and the temperature in the test chamber reaches the stable test room ambient temperature, take out the remote control and check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the temperature change test, it should be tested after it disappears.
9.5 Sweep vibration (sine) test
9.5.1 Requirements
The remote control shall be able to withstand the vibration test specified in Table 1. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1.
Frequency range
10~30~10
30~55~30
9.5.2 Test method
GB/T14960—94
Displacement amplitude
The test equipment shall comply with the provisions of Chapter 3 of GB2423.10. Scanning cycle number
On the vertical axis of the working surface
Vibrate in sequence
The remote control is fastened on the vibration test bench in the normal working position without packaging or batteries. The vertical line of the combined center of gravity of the remote control and the fixture should be located near the center of the vibration test bench. The exciting force should be directly transmitted to the remote control without passing through the vibration-damping feet, handles or other buffering devices, and the devices (bolts, pressure plates, pressure strips) that fasten the remote control should avoid self-resonance during the vibration test. The remote control should be subjected to scanning vibration tests of 10~30~10Hz displacement amplitude 0.75mm and 30~55~30Hz displacement amplitude 0.15mm for 5 times each as specified in Table 1.
The time for a cyclic scan (f1→2→f1) within a certain frequency range at a scanning frequency of one octave per minute is: T=6.644g ()
Where: T-
-cycle time, min;
fi-lower limit frequency of a scan, Hz;
f2-upper limit frequency of a scan, Hz.
After the vibration test, test the performance of the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. 9.6 Free drop test
9.6.1 Requirements
The remote control, without packaging, with batteries installed, is free dropped from a height of 80 cm onto a wooden floor not less than 3 cm thick according to the provisions shown in Figure 4. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1. Figure 4 Schematic diagram of free fall sequence
1 side is the launch surface;
2 side is the front surface,
3 side is the bottom surface,
4, 5, 6 side surfaces are the sides
Test method
GB/T14960—94
Under the condition that the remote control is equipped with batteries, it is not packaged and falls freely from a height of 80cm onto a wooden floor not less than 3cm thick. The falling surface of the remote control should be parallel to the impact surface, and the impact surface should be horizontal, flat, solid and hard, so that it does not move or deform during the test. During the test, the test surface specified in Figure 4 is dropped in the order of 3→2-45+61, and the cycle is repeated three times. After the drop test, check the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. And record the damage of the remote control and whether the functions are normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters See Table A1. Table A1
Graphic symbols
(stand-by)
Ready-off
Adjustability
Switch position indicating that part of the equipment is connected (closed) and the equipment is in standby and use
Switch position that part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic power-off time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.21 The provisions of Chapter 18. The remote control is placed in a test chamber at room temperature without packaging or batteries (in order to prevent condensation, the remote control may be sealed with a plastic film before testing, and a desiccant may be placed in the sealing sleeve if necessary). The temperature in the test chamber is lowered to -25±2°C at an average rate of 0.5~1°C/min. When the remote control reaches a stable temperature, it is left for 2 hours. Then the temperature in the test chamber is raised to normal test atmospheric conditions at an average rate of 0.5~~1°C/min. The remote control is taken out and restored for 2 hours. Check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. 9.4 Temperature change test
9.4.1 Requirements
The remote control shall be able to withstand the temperature cycle change test shown in Figure 3. After a total of 5 cycles of tests, it shall comply with the provisions of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1. Test run machine
Figure 3 Schematic diagram of temperature cycle change in temperature change test 9.4.2 Test method
The test equipment shall comply with the provisions of Article 2.6.2 of GB9384. The remote control shall be placed in a test box at room temperature without packaging or batteries. The temperature in the test chamber is reduced to -10±3°C at a cooling rate of 1±0.5°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, the temperature is kept constant for 3 hours, and then the temperature in the test chamber is increased to 40±2°C at a heating rate of 1±0.2°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, it is kept for 3 hours, and then the temperature in the test chamber is reduced to the test room ambient temperature at a cooling rate of 1±0.2°C/min (average rate within 5 minutes). The above constitutes a test cycle, and five test cycles are carried out in sequence. After the test is completed and the temperature in the test chamber reaches the stable test room ambient temperature, take out the remote control and check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the temperature change test, it should be tested after it disappears.
9.5 Sweep vibration (sine) test
9.5.1 Requirements
The remote control shall be able to withstand the vibration test specified in Table 1. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1.
Frequency range
10~30~10
30~55~30
9.5.2 Test method
GB/T14960—94
Displacement amplitude
The test equipment shall comply with the provisions of Chapter 3 of GB2423.10. Scanning cycle number
On the vertical axis of the working surface
Vibrate in sequence
The remote control is fastened on the vibration test bench in the normal working position without packaging or batteries. The vertical line of the combined center of gravity of the remote control and the fixture should be located near the center of the vibration test bench. The exciting force should be directly transmitted to the remote control without passing through the vibration-damping feet, handles or other buffering devices, and the devices (bolts, pressure plates, pressure strips) that fasten the remote control should avoid self-resonance during the vibration test. The remote control should be subjected to scanning vibration tests of 10~30~10Hz displacement amplitude 0.75mm and 30~55~30Hz displacement amplitude 0.15mm for 5 times each as specified in Table 1.
The time for a cyclic scan (f1→2→f1) within a certain frequency range at a scanning frequency of one octave per minute is: T=6.644g ()
Where: T-
-cycle time, min;
fi-lower limit frequency of a scan, Hz;
f2-upper limit frequency of a scan, Hz.
After the vibration test, test the performance of the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. 9.6 Free drop test
9.6.1 Requirements
The remote control, without packaging, with batteries installed, is free dropped from a height of 80 cm onto a wooden floor not less than 3 cm thick according to the provisions shown in Figure 4. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1. Figure 4 Schematic diagram of free fall sequence
1 side is the launch surface;
2 side is the front surface,
3 side is the bottom surface,
4, 5, 6 side surfaces are the sides
Test method
GB/T14960—94
Under the condition that the remote control is equipped with batteries, it is not packaged and falls freely from a height of 80cm onto a wooden floor not less than 3cm thick. The falling surface of the remote control should be parallel to the impact surface, and the impact surface should be horizontal, flat, solid and hard, so that it does not move or deform during the test. During the test, the test surface specified in Figure 4 is dropped in the order of 3→2-45+61, and the cycle is repeated three times. After the drop test, check the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. And record the damage of the remote control and whether the functions are normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters See Table A1. Table A1
Graphic symbols
(stand-by)
Ready-off
Adjustability
Switch position indicating that part of the equipment is connected (closed) and the equipment is in standby and use
Switch position that part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic power-off time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Sign of brightness control
Sign of contrast control
Sign of color saturation control
Sign of increasing adjustment amount
Sign of decreasing adjustment amount
Sign of displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.21 The provisions of Chapter 18. The remote control is placed in a test chamber at room temperature without packaging or batteries (in order to prevent condensation, the remote control may be sealed with a plastic film before testing, and a desiccant may be placed in the sealing sleeve if necessary). The temperature in the test chamber is lowered to -25±2°C at an average rate of 0.5~1°C/min. When the remote control reaches a stable temperature, it is left for 2 hours. Then the temperature in the test chamber is raised to normal test atmospheric conditions at an average rate of 0.5~~1°C/min. The remote control is taken out and restored for 2 hours. Check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. 9.4 Temperature change test
9.4.1 Requirements
The remote control shall be able to withstand the temperature cycle change test shown in Figure 3. After a total of 5 cycles of tests, it shall comply with the provisions of 5.1.1, 5.4.1c, 6.3.1, 7.1.1, 7.5.1, 8.2.1, 8.3.1 and 8.4.1. Test run machine
Figure 3 Schematic diagram of temperature cycle change in temperature change test 9.4.2 Test method
The test equipment shall comply with the provisions of Article 2.6.2 of GB9384. The remote control shall be placed in a test box at room temperature without packaging or batteries. The temperature in the test chamber is reduced to -10±3°C at a cooling rate of 1±0.5°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, the temperature is kept constant for 3 hours, and then the temperature in the test chamber is increased to 40±2°C at a heating rate of 1±0.2°C/min (average rate within 5 minutes). After the test chamber reaches a stable temperature, it is kept for 3 hours, and then the temperature in the test chamber is reduced to the test room ambient temperature at a cooling rate of 1±0.2°C/min (average rate within 5 minutes). The above constitutes a test cycle, and five test cycles are carried out in sequence. After the test is completed and the temperature in the test chamber reaches the stable test room ambient temperature, take out the remote control and check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the temperature change test, it should be tested after it disappears.
9.5 Sweep vibration (sine) test
9.5.1 Requirements
The remote control shall be able to withstand the vibration test specified in Table 1. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1.
Frequency range
10~30~10
30~55~30
9.5.2 Test method
GB/T14960—94
Displacement amplitude
The test equipment shall comply with the provisions of Chapter 3 of GB2423.10. Scanning cycle number
On the vertical axis of the working surface
Vibrate in sequence
The remote control is fastened on the vibration test bench in the normal working position without packaging or batteries. The vertical line of the combined center of gravity of the remote control and the fixture should be located near the center of the vibration test bench. The exciting force should be directly transmitted to the remote control without passing through the vibration-damping feet, handles or other buffering devices, and the devices (bolts, pressure plates, pressure strips) that fasten the remote control should avoid self-resonance during the vibration test. The remote control should be subjected to scanning vibration tests of 10~30~10Hz displacement amplitude 0.75mm and 30~55~30Hz displacement amplitude 0.15mm for 5 times each as specified in Table 1.
The time for a cyclic scan (f1→2→f1) within a certain frequency range at a scanning frequency of one octave per minute is: T=6.644g ()
Where: T-
-cycle time, min;
fi-lower limit frequency of a scan, Hz;
f2-upper limit frequency of a scan, Hz.
After the vibration test, test the performance of the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. 9.6 Free drop test
9.6.1 Requirements
The remote control, without packaging, with batteries installed, is free dropped from a height of 80 cm onto a wooden floor not less than 3 cm thick according to the provisions shown in Figure 4. After the test, the remote control shall comply with the provisions of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1. Figure 4 Schematic diagram of free fall sequence
1 side is the launch surface;
2 side is the front surface,
3 side is the bottom surface,
4, 5, 6 side surfaces are the sides
Test method
GB/T14960—94
Under the condition that the remote control is equipped with batteries, it is not packaged and falls freely from a height of 80cm onto a wooden floor not less than 3cm thick. The falling surface of the remote control should be parallel to the impact surface, and the impact surface should be horizontal, flat, solid and hard, so that it does not move or deform during the test. During the test, the test surface specified in Figure 4 is dropped in the order of 3→2-45+61, and the cycle is repeated three times. After the drop test, check the remote control according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. And record the damage of the remote control and whether the functions are normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters See Table A1. Table A1
Graphic symbols
(stand-by)
Ready-off
Adjustability
Switch position indicating that part of the equipment is connected (closed) and the equipment is in standby and use
Switch position that part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic power-off time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.2The temperature is lowered to the test room ambient temperature at a rate of 2℃/min (average rate within 5min). The above constitutes a test cycle, and five test cycles are carried out in sequence. After the test is completed and the temperature in the test chamber reaches the stable test room ambient temperature, take out the remote control and check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the temperature change test, it should be tested again after it disappears.
9.5 Sweep vibration (sinusoidal) test
9.5.1 Requirements
The remote control should be able to withstand the vibration test specified in Table 1. After the test, the remote control should meet the requirements of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1.
Frequency range
10~30~10
30~55~30
9.5.2 Test method
GB/T14960—94
Displacement amplitude
The test equipment shall comply with the provisions of Chapter 3 of GB2423.10. Number of scanning cycles
On the vertical axis of the working surface
Vibrate in sequence
The remote control shall be fastened on the vibration test bench in the normal working position without packaging or batteries. The vertical line of the combined center of gravity of the remote control and the fixture shall be located near the center of the vibration test bench. The exciting force shall be directly transmitted to the remote control without passing through the vibration-damping feet, handles or other buffering devices, and the components (bolts, pressure plates, pressure strips) fastening the remote control shall be prevented from generating self-resonance during the vibration test. The remote controller shall be subjected to scanning vibration test of 10~30~10Hz displacement amplitude 0.75mm and 30~55~30Hz displacement amplitude 0.15mm for 5 times each according to the provisions of Table 1.
The time for a cycle scan (f1→2→f1) in a certain frequency range at a scanning frequency of one octave per minute is: T=6.644g ()
Where: T-
-cycle time, min;
fi--lower limit frequency of scanning, Hz;
f2--upper limit frequency of scanning, Hz.
After the vibration test, test the performance of the remote controller according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. 9.6 Free drop test
9.6.1 Requirements
The remote control, with batteries installed and without packaging, is to be dropped from a height of 80 cm onto a wooden floor not less than 3 cm thick as shown in Figure 4. After the test, the remote control shall comply with the requirements of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1. Figure 4 Schematic diagram of free fall sequence
1 side is the launch surface;
2 side is the front surface,
3 side is the bottom surface,
4,5,6 side are the sides
Test method
GB/T14960—94
Under the condition that the remote control is equipped with batteries, it is not packaged and falls freely from a height of 80cm onto a wooden floor not less than 3cm thick. The falling surface of the remote control should be parallel to the impact surface, and the impact surface should be horizontal, flat, solid and hard so that it does not move or deform during the test. During the test, the test surface specified in Figure 4 is dropped in the order of 3→2-45+61, and the cycle is repeated three times. After the drop test, the remote control is tested according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. And record the damage of the remote control and whether each function is normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters are shown in Table A1. Table A1
Graphic Symbols
(Stand-by)
Ready-off
Adjustability
Indicates the switch position where a part of the equipment is connected (closed) and the equipment is in standby and use
Switch position where a part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic shutdown time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.2The temperature is lowered to the test room ambient temperature at a rate of 2℃/min (average rate within 5min). The above constitutes a test cycle, and five test cycles are carried out in sequence. After the test is completed and the temperature in the test chamber reaches the stable test room ambient temperature, take out the remote control and check whether the functions of the remote control are normal according to 5.1.2, 5.4.2, 6.3.2, 7.1.2, 7.5.2, 8.2.2, 8.3.2 and 8.4.2. If there is condensation or water droplets on the remote control after the temperature change test, it should be tested again after it disappears.
9.5 Sweep vibration (sinusoidal) test
9.5.1 Requirements
The remote control should be able to withstand the vibration test specified in Table 1. After the test, the remote control should meet the requirements of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1.
Frequency range
10~30~10
30~55~30
9.5.2 Test method
GB/T14960—94
Displacement amplitude
The test equipment shall comply with the provisions of Chapter 3 of GB2423.10. Number of scanning cycles
On the vertical axis of the working surface
Vibrate in sequence
The remote control shall be fastened on the vibration test bench in the normal working position without packaging or batteries. The vertical line of the combined center of gravity of the remote control and the fixture shall be located near the center of the vibration test bench. The exciting force shall be directly transmitted to the remote control without passing through the vibration-damping feet, handles or other buffering devices, and the components (bolts, pressure plates, pressure strips) fastening the remote control shall be prevented from generating self-resonance during the vibration test. The remote controller shall be subjected to scanning vibration test of 10~30~10Hz displacement amplitude 0.75mm and 30~55~30Hz displacement amplitude 0.15mm for 5 times each according to the provisions of Table 1.
The time for a cycle scan (f1→2→f1) in a certain frequency range at a scanning frequency of one octave per minute is: T=6.644g ()
Where: T-
-cycle time, min;
fi--lower limit frequency of scanning, Hz;
f2--upper limit frequency of scanning, Hz.
After the vibration test, test the performance of the remote controller according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. 9.6 Free drop test
9.6.1 Requirements
The remote control, with batteries installed and without packaging, is to be dropped from a height of 80 cm onto a wooden floor not less than 3 cm thick as shown in Figure 4. After the test, the remote control shall comply with the requirements of 5.1.1, 5.4.1c, 7.1.1, 7.2.1 and 7.5.1. Figure 4 Schematic diagram of free fall sequence
1 side is the launch surface;
2 side is the front surface,
3 side is the bottom surface,
4,5,6 side are the sides
Test method
GB/T14960—94
Under the condition that the remote control is equipped with batteries, it is not packaged and falls freely from a height of 80cm onto a wooden floor not less than 3cm thick. The falling surface of the remote control should be parallel to the impact surface, and the impact surface should be horizontal, flat, solid and hard so that it does not move or deform during the test. During the test, the test surface specified in Figure 4 is dropped in the order of 3→2-45+61, and the cycle is repeated three times. After the drop test, the remote control is tested according to 5.1.2, 5.4.2, 7.1.2, 7.2.2 and 7.5.2. And record the damage of the remote control and whether each function is normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters are shown in Table A1. Table A1
Graphic Symbols
(Stand-by)
Ready-off
Adjustability
Indicates the switch position where a part of the equipment is connected (closed) and the equipment is in standby and use
Switch position where a part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic shutdown time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.22. Check the remote control. And record the damage of the remote control and whether all functions are normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters See Table A1. Table A1
Graphic symbols
(stand-by)
Ready-off
Adjustability
Switch position indicating that part of the equipment is connected (closed) and the equipment is in standby and use
Switch position that part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic power-off time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.22. Check the remote control. And record the damage of the remote control and whether all functions are normal.
GB/T14960—94
Appendix A
Common Graphic Symbols for Infrared Remote Control Transmitters
(Supplement)
Common Graphic Symbols for Infrared Remote Control Transmitters See Table A1. Table A1
Graphic symbols
(stand-by)
Ready-off
Adjustability
Switch position indicating that part of the equipment is connected (closed) and the equipment is in standby and use
Switch position that part of the equipment is disconnected and the equipment is ready for use
Sign for volume adjustment
Sign for "balance" adjustment of the voltage (power) of the left and right channels of stereo
Sign for setting the automatic power-off time
Sign for removing the sound
GB54 Numbers in 65.2
Graphic symbols
GB/T14960—94
Continued Table A1
Contrast
Color saturation
Screen display
Normal recovery state
Brightness control mark
Contrast control mark
Color saturation control mark
Mark for increasing adjustment amount
Mark for decreasing adjustment amount
Mark for displaying status information on the screen
Restore to the standard state designed and adjusted during production
Numbers in GB5465.2
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