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How to judge whether the remote control is normal:
2022-08-29 17:12
Install the battery on the remote control, then use the camera or mobile phone camera function, point the top of the remote control at the camera, press the button on the remote control, if you can see light on the camera screen, the remote control is normal, otherwise damaged.
Is the old remote control worth repairing? What is the price of the remote control?
Ruijia home appliance repair can repair damaged remote controls of various electrical appliances. The repair price ranges from 3 yuan to 10 yuan, depending on the fault and the price of accessories. If you are a friend near Baohe District, it is recommended to bring it to your door for repair. The maintenance time is very short, and the quality of other accessories of the original remote control is also guaranteed. For remote areas, if there is no maintenance department nearby, maintenance is not recommended. You can consider replacing one directly. Generally, the TV remote control is 10 yuan to 15 yuan, and the air conditioner The remote control is about 25 yuan, and if you need the original remote control, the price may be higher, for reference only.
Remote control common troubleshooting
First of all, when we receive a remote control that needs to be repaired, we will put the pointer multimeter in the R×1K block, take an infrared receiving diode, connect the black test lead to its positive electrode, and the red test lead to its negative electrode. The remote control to be repaired Install the battery, align the connected infrared receiving diode, press any key, if the pointer of the multimeter deflects a little, it means that the remote control is transmitting normally;
If the pointer does not move, the remote control is indeed broken. Disassemble the remote control, set the multimeter to DC 10V, measure the battery voltage, and press any key at the same time, if the voltage drops slightly, it means that the infrared emission tube is broken, you can replace it with a new one; if the voltage does not drop, you can check 455kHz If the voltage is low or there is no voltage at all, you can replace a new pair of batteries, and at the same time use sandpaper to polish the contact points of the battery box. If a button is found to be invalid, you can cut a corresponding cigarette aluminum foil paper on the contact surface of the button, stick it with strong glue, and dry it.
Through the above checks, the problem can basically be solved. I have overhauled many remote controls, and I rarely encounter damage to other components such as filter capacitors, integrated blocks, and drive transistors.
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