Re: Philips 42PFL7432D/37 can't turn on
I tried to cycle the power switch several times; once I was able to turn the unit on, then it worked as usual with sounds and pictures. I took the opportunity to update the software; wasn't sure it would help anything. It has been working for 2 days, will have to wait longer to see if problem comes back.
Original problem: TV wasn't able to turn on after disconnecting and reconnecting main AC cord.
backoi
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Last Activity: 03-07-2016, 12:36 AM
Joined: 01-03-2012
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Philips 42PFL7432D/37 can't turn on
My Philips 42PFL7432D/37 can't be turned on from either RC or control panel.
Thanks to PlainBill, I found the service manual.
I checked the Display Supply board at 1P11, found 12V, 5V, power good present. I also checked the Small Signal Board at 1B40, found 12 VS and 5V standby; at DC/DC (B02A) section, found 3.3V, 1.8V and 1.2V as well. 24V are also at the utility boards.
How should I troubleshoot this problem? Appreciate any help. -
Re: Philips 42PFL5432D/37
My apology to PlainBill! I checked the model and it's 42PFL7432D/37 chassis Q523.1U LA
I mixed up the 7432 with 5432. I am searching for the service manual, hope to find one soon.
BackoiLeave a comment:
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Re: Philips 42PFL5432D/37
1) Do you have a source hooked up like a DVD player to see if there is a picture and sound?
Yes, I have one. Since TV can't turn on, so the dvd wouldn't do anything.
2) Does the power always go off after 1 minute?
Yes, after pluggin in the main power cord, one of the LEDs on main board stayed on 1 min, then it went off at the same time with a blue indicator LED in front of TV. See attached pictures.
a) If you turn off the TV and turn it back on, does it stay...Leave a comment:
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Re: Philips 42PFL5432D/37
Hi, I attach the pictures of power board, main board and inverter boards. Please let me know if any picture needs to be retaken for clarity. Thanks!...Leave a comment:
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Re: Philips 42PFL5432D/37
Hi, I am new to this forum. I have the same model TV. Recently, it had no picture and no sound. I checked the power to both inverters, measured 24V DC. Visually, I didn't see any sign of caps burned or deformed. When power on, the blue light in front stays on for 1 minute, then goes off. What else should I check? Thanks for help!Leave a comment:
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