Question about LG Home Theatre System HT302SD

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Eax32631003 circuit diagram

Can I get this board, this power unit has several problems, diodes short cut(D951,D952), rectifier bridge(BD 901) short cut, IC902 short cut, zener diode 33V (ZD902)short cut

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 159 Answers

SOURCE: I have a DVD player LG LH-T9654S, it was broken by

Hi, as you've lost the original parts I suspect finding their numbers may be next to impossible but not to worry. There are several " STAGES " for some power supplys-one stage will drive the final amplifier circuits, while another drives the dvd portion and another for the fluorescent display. My advice is to use a part number from another stage of the power supply ( make sure the diode looks the same ) and if that feels wrong just order a diode that has at least a 100 volt rating for 3 amps and that should do the trick. I hope this was of some help, write back & let us know if we helped or can be of further assistance, Thanks for asking FixYa, and good luck-Prodzilla

Posted on Apr 14, 2011

SD Tech
  • 14553 Answers

SOURCE: LG 32lh200 power supply failure common problem

You might try to follow the diode back to the source and read voltage to know the value of the diode and also look on the diode for generic number--short of that Google the model number with "parts" as it might be cheaper to replace the board than try to fix it by guessing values.

Posted on Aug 27, 2012

gopakumarg43
  • 73647 Answers

SOURCE: LG 47LB5DF bad part

If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Try it, and see whether it help you or not.

Posted on Feb 26, 2014

  • 112 Answers

SOURCE: Where to get clear diagram of magnetron circuitry with capacitor and diode circuits shown ?

Below is a common diagram for LG Microwave "High Side" components.

The component below the Monitor Interlock Switch is the Transformer. So, on the High Side of the transformer, you can see all the components.

Can you give me the model number of the unit that you are wanting information?
25638112-y3xfmd3gd40t5xgepemcew4d-4-0.jpg

Posted on Apr 10, 2015

gopakumarg43
  • 73647 Answers

SOURCE: The value of zd442 zener diode which r used in afc circuits of LG flatron crt tv

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Circuit diagrams of SMPS section of many popular brand devices are given. Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Posted on Oct 16, 2015

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Triarcuate

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pulling to many amps,diodes could not handle amps so they failed.unit should have kicked its breaker before the diodes burned out.most units have their own breaker to protect the system.I would replace the control board first see how unit reacts,probly fine,if not the you go to next step.

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