20 Most Recent LG 42PC1DA 42 in. Plasma HDTV Questions & Answers

That pop was a "cap" capacitor blowing, open up the TV and look for a burn mark. And of course LG isn't going to fix or supply info for free to fix this for free, that is just good business, I would agree with them..

LG 42PC1DA 42... | Answered on Jul 21, 2017

Before you toss your TV into the dumpster, have you tried resetting the unit to factory settings?
First, you can go into "Expert mode" on the tv by holding down the menu button. After the regular menu button pops up, keep holding down the menu button for another 5 or 6 seconds until the 4 digit lock code entry window appears. Enter the code 8741 to enter expert mode. Here you can change all the expert calibration settings and restore the set back to default factory settings.

LG 42PC1DA 42... | Answered on Mar 11, 2017

You have to check its main digital board. It is a very skilled work. Contact any service technician. If you're sound in electronics and if you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.

LG 42PC1DA 42... | Answered on Oct 20, 2013

ok you have defective vertical amplifier and convergence correction circuit!

LG 42PC1DA 42... | Answered on Dec 14, 2012

I see so many here with no sound/nopicture issues:


1. IF sound main fuse/s are good.
2. If no power or standby check main fuse, standby power supply and any signsof damage you can see---burnt parts etc.
3. almost all these sets the troubleshooting involves checking voltages on the main power board to narrow down theproblem.
4. Be safe and if you do not know what you are doing don't open the set.

Answers to issues:

1. RE:fuses---if a blown fuse is found get a good replacement(not the genericones like Radio Shack). Many fuses are special even aside from amperage--Don'tput a higher rated amperage fuse in the set for any reason.

2. RE: power supply in set: if total dead aside from main fuse the set uses astandby power supply that runs 7/24 and a main supply (some are combined andsome not.

Here aside from checking fuses you want to examine all the filter caps on thepower/standby to see if any are puffed up or buldged up in some fashion--Iattach a photo of a good one---top should be silver metal and PERFECTLY flatand have no brown material coming out on top or bottom.

What happens in the standby area is they use caps with too low a voltage rating(saves money) which causes them to fail in a year or two---the standby runs7/24 and the heat dries out the caps and they fail.

3. Trouble shooting consists of the above and then at some point you have tobuy and try a board to see if it fixes it or not.

4. Safety first--no TV set is worth getting injured or even killed over.

LG 42PC1DA 42... | Answered on Apr 02, 2012

There is a problem in the power supply, if you remove the back cover of your tv try to look for bulge up or leaky capacitor, the bulge up is that the top is not perfectly flat and the leaky capacitor has a wet mark at the bottom or an oil spill. This capacitor produces low and unfiltered dc output voltage you should replace this capacitor but be sure to remember the proper position because it has a polarity. Note be sure to unplug the unit before removing the back cover of your tv. Feel free to send feed back good day and best regards.

LG 42PC1DA 42... | Answered on Aug 14, 2011

In this case, the defect is in Y-SUS PCB, change it and adjust the voltage that are specified
on sticker attached to plasma module

LG 42PC1DA 42... | Answered on May 11, 2011

Hi arroyocontra ,

I would recommend you to check how much would it cost for a repair job and how much warranty will you get along with the repair work,

If then you feel that a new television set is preferable , then go for it ...:)

LG 42PC1DA 42... | Answered on May 10, 2011

Did you tried diferent sources from where you get the image? For example you could try to connect a video camera, laptop, dvd or any other thing you could hook it up in your TV and check if there is still no picture.
If the screen is burned it costs the same or a bit less than a new one
Good luck

LG 42PC1DA 42... | Answered on May 06, 2011

That's a tough one to answer with constantly changing prices, and different prices in different areas, but in most cases, a plasma screen is more expensive to replace than the entire unit (especially if you move to LCD or another technology).
You'll have to call around your area and see what places quote you for a new TV and what shops will charge to get you a new screen.

LG 42PC1DA 42... | Answered on Mar 19, 2011

Please check your capacitors for malfunction. Replace them if needed.

LG 42PC1DA 42... | Answered on Feb 08, 2011

Shop rate will be $200 and up plus parts.
Yes, it can be caps failures in power supply, Z-SUSTAIN, Y-SUSTAIN boards, you also need to check the fuses on all those 3 boards, they are common failure boards.
See the pictures of the boards here:

Please leave rating if it helps.

LG 42PC1DA 42... | Answered on Jan 29, 2011

Probably a dry joint on the power supply board. Check around all heavy components, (coils, transformers etac).

LG 42PC1DA 42... | Answered on Oct 19, 2010

you can try to ask for a repairman to come and check it. it might just be a loose contact that needs to be solder.

LG 42PC1DA 42... | Answered on Oct 14, 2010

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