Re: SONY FWD-50PX2 Plasma Clicking sound and red light
The panel sticker shows Vs is 192V and Va is 60V.
I have no idea what the numbers of next line means.
I measured the Va voltage and it is 75V.
Then the PSU is problem?
Thanks...
soho727
Member
Last Activity: 01-04-2020, 03:51 AM
Joined: 04-28-2012
Location: Aliso Viejo, CA
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
Thanks for the tip.
Changed the battery and measured again...little bit lower voltage (237V)
Still too high?Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
I know the voltage is too high.
Today, I measured the voltage again with Y-SUS and Z-SUS boards were disconnected.
When it clicks, the voltage keep increasing to 260V at this time and then drop to 3V....Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
tom66...thanks for helping me.
I disconnected Y and Z board and plug in the power.
It clicks as before and then red light. The voltage is around 240V when it clicks and 2.8V after that.Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
Yes, I have itLeave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
I disconnect the connector which was connected to Y-SUS board (bigger connector shown at the right side of the pic) and no difference (clicks and red light).
This time, I found that when it clicks, there is small noise coming from Y-SUS board.Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
The Z-SUS board was under the Main board....Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
Yes, inside all boards are from LG.
I disconnected the power of Y-SUS board and same...5times click and red light.
There is only one small connector from Z-SUS board which connected to control board.
I disconnected it and no difference.
I am uploading some service manuals for this TV (PDF) which I got from web searching for reference....Leave a comment:
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Re: SONY FWD-50PX2 Plasma Clicking sound and red light
Thanks Tom66.
I've posted some pictures of TV.
Should I replace PSU or Main board?Leave a comment:
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SONY FWD-50PX2 Plasma Clicking sound and red light
When I plug in the TV, the green light comes on and it clicks five or six times and then the green light turns red. The screen stays black and Remote and controls the TV does not work. I opened up the back cover and all capacitors look good. Please help thanks....Last edited by soho727; 05-09-2012, 04:18 AM.
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