Question about LG 37LC7D 37 in. LCD HDTV

1 Answer

Hi shawnn,i'd like to know the if it's only power supply faulty and i need the board #?thanks man.

Remember i have the lg 37lc7d,led doesn't turn on even red color set it's dead now,i checked and they show two number for power supply,one says power supply assy part#eay ending in801 and the other one say-power supply assembl part#eay and ending in 901 and other one says pcb assembly power part#68719pt298f wich one is the bad one? i can give you twenty five dls if you help and tell me,thanks,faradio.

Posted by on

  • MWatz Jul 04, 2008

    I have the same problem right now. The TV is about 10 months old, so the warranty is up soon. LG did send out a technician quickly and it was working when he showed up - he told me that I need to replace the motherboard, he has ordered one and will install it next week. Last night the TV turned on in the middle of the night. Now it won't turn on at all. I've tried unplugging and plugging it back in, but that doesn't work. The funny thing is that this TV replaced a 10 year old Phillips that worked fine, it just wasn't as modern and with the new digital requirement I upgraded, the old TV had cost about 1/3 of this still works fine. It'll be interesting to see what happens after the warranty expires. As this is a known issue LG should be required by law to fix the problem or to replace the TV at their cost - as this is a racket and obviously an issue with the quality.


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Have the same problem and already replace ps from fleabay and still dead , looks llike the problems is on the main board.

Posted on Jun 10, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

LG 32LB530A Tv sound ok faint picture Led backlid off

Back light led driver or the led array is faulty. check and confirm the voltage to the led back light from the power supply. normally 35V to 100V according to the brand and model of the tv. Check the voltage if the voltage is somewhere around the above mentioned voltage the then the tv have problem with the led array behind the screen . If the voltage is missing then the led driver is faulty. Normally the led drivers is found integrated to the power supply board. If so then you have to replace the power supply board as a whole.

Oct 10, 2015 | LG Televison & Video

1 Answer

Sound but no picture

You will need to have the set properly diagnosed to pinpoint the problem. If you have electronics repair abilities, check the capacitors in the power supply to start with. Other than that, you could be looking at a bad inverter, bad CCFL lamp, faulty power supply, or a main board.

Sep 05, 2012 | LG 37LC7D 37 in. LCD HDTV

2 Answers

When turning on from standby red light flashes to green but no picture comes on then go straight back to standby mode

It's most likely the four 10v/2200mf caps in the power supply near the primary transformer and if so they will look rather buldged on top. Better to ESR all of them for reliability. Simple fix for a shop and shouldn't cost too much...

Jun 30, 2011 | LG 37LC7D 37 in. LCD HDTV

1 Answer

My TV will power off for no reason

Hello sir, hi, most likely your TV power supply board has bad components already. You need a replacement PS board.

Dec 14, 2010 | LG 37LC7D 37 in. LCD HDTV

1 Answer

LG HDTV (48"?) won't turn on after 18-hour power failure (power is now back on). "On" light clicks green and then immediately goes off (red). Is there anything I can do or do I need service to check it...

The surge of power when the power came back on exploded the caps on the PSB-power supply board... You can call someone out but it will cost as much as buying a new one.

Best regards and Semper Fi

Aug 06, 2010 | LG 37LC7D 37 in. LCD HDTV

1 Answer

I have a lg 37lc7d will shut its self off

When it shuts off does the power light stay on like the unit is still on?If yes,try shining a bright flashlight at the screen and see if you can see any video.If you can your power and main boards are would then probably need an inverter board or panel.If it is shutting completely off you need a main total assembly since you have already replaced the power supply.The main total assembly is avery common issue on lg lcd tv's.

Oct 15, 2009 | LG 37LC7D 37 in. LCD HDTV

1 Answer

Hi I have an LG LCD tv and this morning it just went dead, as if there is no power getting to it at all. The electric supply is ok Regards BMcD

If it is completely dead (no standby light, flashing LED blinks), the power supply failed. Replace the Power Supply board to fix.

Oct 05, 2009 | LG 37LC7D 37 in. LCD HDTV

2 Answers

LG Washer wont start, no power

Make sure there's power getting to the washer. Check for a tripped circuit breaker or a blown fuse. Check the wall socket for power. Sometimes the power cord disconnects at the washer, if this is the case, the wiring must be repaired or replaced.

Jun 21, 2009 | LG WM-2277HW Front Load Washer

1 Answer

Power went out on LG lcd tv

Those units usually have a main board that all the functions are centralized on. If the LED comes on then your power supply is operating (at least no shorts). But the main board will most likely be the problem.


Feb 10, 2008 | LG 37LC7D 37 in. LCD HDTV

Not finding what you are looking for?
LG 37LC7D 37 in. LCD HDTV Logo

Related Topics:

295 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Televison & Video Experts

The Knight
The Knight

Level 3 Expert

72601 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18381 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Are you a LG Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides