vr2yxt
New Member
Last Activity: 07-11-2024, 03:37 AM
Joined: 01-03-2017
Location: Hong Kong
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Dell U2711 mosfet part number
Q2 and Q19 are the same model. Q2 has burnt, the marking is B059. What is the actual model number？ I guess it is sm2305psa, but not sure. -
Re: Asus P5K SE/EPU USB Over Current Status Detected
I know this is an old thread. I hope my experience can help others with similar problem.
I faced the same problem in P5Ke-wifi. I found that the problem is due to the short circuit in USB 5v to ground. I checked all the resistance between 5v to ground of each USB port. Finally, I identify the USB34 with the lowest resistance. There is a ceramic cap after the USB34 port is shorted. I replaced it and the problem has been solved. -
Re: Philips 42PFL9703D/10 No picture
I have not replace the three high voltage caps but the TV is working now. It may be the new 4 caps are not stable in the beginning.Leave a comment:
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Re: Philips 42PFL9703D/10 No picture
The TV are ocassionally work, so the CCFL and the active component should be fine. I intend to replace cap 2231, 2216 and 2247. These three caps are high voltage cap.Last edited by vr2yxt; 03-05-2018, 11:10 AM.Leave a comment:
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Re: Philips 42PFL9703D/10 No picture
I found a circuit for the high voltage inverter. The variable resister 3224 is for current adjust for 32"and 42" TV. Should I adjust it?...Last edited by vr2yxt; 03-05-2018, 06:01 AM.Leave a comment:
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Re: Philips 42PFL9703D/10 No picture
I have the same problem. Replace the 4 capacitors (330pF 3KV) can only work for one or two days. Before no video, the back light will flash.Last edited by vr2yxt; 03-04-2018, 01:06 AM.Leave a comment:
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Re: Philips 42PFL9703D/79 LCD TV Not powering up.
I have the same problem and follow post #14 to replace the capacitors 100nF (2179) and change 22nF to 47nF(2165), no other component need to replace. My TV is working normally. Thanks.Leave a comment:
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