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Have LG 42v5. Suspect YSUS faulty. Output waveform not exactly like service manual. Leds D1 & 2 lit. D17 flashing. D13 lit. D12,11, 10 not lit. Sometimes the screen shows some signs of life (the odd blue pixel lighting up at top of pic). ZSUS waveform looks ok. Control panel & right XSUS have been changed. The original YSUS had blown and I replaced it with a supposedly working one from a dealer. The Y buffers have also been changed. Please help, regards, Mike

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: LG 50PX1D, YSUS and ZSUS board replacement

first thing that you can do is use the Google serch by just typing in lg 50px1d and see if you get any thing close to what you need.

Posted on Jan 06, 2009

  • 2318 Answers

SOURCE: Some troubleshooting help please.

The part that caused the fuse to blow is the hybrid that is mounted underneath the heatsink on the YSUS and ZSUS boards. The part used on these boards might be YPPD-J017C or YPPD-J018C, in about 90% of the time, replacing these hybrids fixes the plasmas with no video but good audio. Since VS and GND is shorted, that means that the hybrid has shorted internally. Most service techs would rather replace the entire YSUS or ZSUS boards since the hybrids are very difficult to remove.
Let me know if you require further assistance.

Posted on Apr 09, 2010

Testimonial: "Appreciate the good info and quick reply. THANKS VERY MUCH"

  • 112 Answers

SOURCE: Rebuilding plasma moduel # 6871QYH053B, three

I’m not seeing a direct break down of that 42” Y-Sustain board to see the D1, D7, and D12.\
Look below for the complete diode parts locations, part numbers, and ratings for the 42PC3d-UE.AUSLLJR. That TV has the 6871QYH053B board you asked about.
I hope my information has helped you.
Good Luck.

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Posted on May 24, 2010

Testimonial: "Thanks for all the help.I've been in the tv service business for 32 years and it is getting more difficult to get any service information.Thanks again for going out of your way to help. rioconcho"

lovejoy91
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SOURCE: the tech said i need a ysus and a zsus board. what

You can check shopjimmy.com or discount-merchant.com or many distrub. sounds like you have no picture.

Posted on Dec 31, 2010

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