A few days ago, I received a diseased Konka LED32CF1160CF, three no. 1. Desktop Mobile Phone Holder; open the Phone Holder directly to 45 degrees, put the phone on it and you can use it
5. Ring buckle mobile phone holder, the usage method only needs to stick the suction ring on the back of the phone, and then put the ring out to place the phone.
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After disassembling the machine, it was found that the machine is a 3-in-1 motherboard, board number.
Since the TV is sick, the first pulse, take out the town store treasure VC9808 + multimeter, a mess on the motherboard; found that the insurance is intact, 300V filter capacitor has about 30V residual power, the power switch tube S pole to ground R resistance is normal When the number is secondary to the switching power supply, it is found that the 12V rectifier VDW963 MBR20100 is close to 0 ohms in the forward and reverse directions.
This thin, skinny 20100 is easily damaged by high currents!
A burst of ecstasy, decisive welding under VDW963; test with a pointer table. paralysis! VDW963 is safe and sound. It seems that the short circuit comes from the 12V filter or its load! This 12V external filter capacitor has many decoupling capacitors and more loads. The 12V goes all the way to the 1.2.3 pin of the power supply switch V8019435;
Another way to go to the backlight booster block N701OZ9902C 2 feet;
The third way to the DC-DC conversion block N803AP3502E 2 feet, after conversion to form 5Vstb;
The fourth way goes to the 10.15.22.26.31 pin of the power amplifier block N202PAM8006A.
Without the equipment on the tall, I can only take out the tools I use to fight birds.
The bird's gun +3.3V can output 6A current; connect the ground wire, and use the 3.3V orange line to touch the negative end of VDW963. Only touched two times, I saw a blue smoke from the N803 at 12V to 5V. The goblin fairy is about to show up.
Hurry and gently touch the smoldering hand in the smoke, when you touch the C898, fuck! Rong Rong is quite biting. Decidely replace the C89810UF. For the sake of safety, the chip inductor L805 of the N803's 12V input terminal to prevent high-frequency interference is replaced.
Power on the test machine, the picture sound is normal.
Write the repair date in the TV, close the back cover, and see the doctor.
2. The bedside mobile phone holder; fix the clip of the mobile phone holder on the side of the bed, freely adjust the bending degree of the holder and the position of the mobile phone according to your posture, which is convenient and more comfortable.
3. Stick to the wall mobile phone bracket; the bracket sticker has strong adhesiveness and can be fixed and hung on glass, ceramic tiles and painted walls.
4. Car phone holder; car air outlet bracket, fixing method: After the mobile phone is installed on the mobile phone bracket, pop out the steel piece in the middle of the mobile phone bracket and put it into the car air outlet to fix it
