LG 62SX4D 62" Television - Answered Questions & Fixed issues

Likely not related but HDMI does not like being connected if either unit is plugged in or powered up.As to the TV let me know the brand and model number and what if any lights at all come on when you plug it in etc.SD TECH

You possibly have a lamp issue but most of the cases like that,,The capacitor is leak or bulged on top..You have to replace it to fix the problem

Good day!!!if the command signal from main board to DMD board missing the problem could be the main board..I already found the board online for only $75 on this site http://www.discounttvparts.com/6871VSMS28B_p/td-1169.htm$100 on this site http://www.ebay.com/itm/NEW-LG-MAIN-UNIT-6871VSMS28B-6870VS2273C-/260877125964Hope it helps..just add a comment for any follow up questions..Thank you

No,try website like Remotes.com to buy the tv original remote.

Hi lc99527,
This is an indication of faulty ballast board and or its power supply(gone to out-of-regulation) and once sense by the feedback circuitry it will automatically shuts off the power supply. First check for bad solder joints (crack/cold/dry joints) in that section. This is hard to spot, I would advice you use table/portable lamp or work in the brightest area to locate it. Once found, resolder it. Also check for leaky/dried electrolytic capacitor. Sometimes it has a bulged at the top but not all, you must have a capacitor checker to determine its condition. Shorted driver transistor in the ballast board will do the same symptom as well as faulty ballast transformer.
Isolating the symptom is technical and if you don't have necessary tools and test instrument and can't do the job yourself, I would advice you to look for a qualified technician to troubleshoot the problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Hi,
Please check and fix your defective capacitor on power supply circuit.
Regards, Jay

Hello; If you did not completely reassemble the back cover(s) it will not likely work. Most sets have a safety switch built into all back panels and doors to stop the set from coming on. John

you need to check for bad connections at the bottom of the boards, may need to be resolder to correct this issue

I just had the same problem. Came down to a bad cap on the main power supply board C871. This is the first filter cap after the diode on the 6V supply. Funny,, the schematic calls for a 25V part,, however this one was rated at 16V :-)

Replaced with a new one,,, all is good to go!

Jer in Hayden

Look on power supply board for bad Capactiors they will be vented on top or puffed up on Top 2200uf 10v 3300uf 10v

sounds like a scaler malfunction.. but could be something else.
this tv is know for having bad capacitors.. check my tutorial on caps, they can give many symptoms and quite possibly are bad. if not, then you need a digital main board, or main board.

http://www.fixya.com/support/r5000889-repairing_tv_just_clicks_over_over

The service manual is available from www.partstore.com
It is part number Part# 3828VD0222B for $2.95
Hopefully the entire DM Module would not need replacing. Hopefully just capacitors in the DM module need replacing and if that is the case part store has these in stock. Their phone number is 866-925-7278

Ur tv have problems,etheir the Tuner signal board or the LCD inverter board.After u turn on the tv,no picture turn tv off/on 3-4 times each time wait a few mins.see if the picture come on?Than it ur Tuner board have problems.If u turn on the tv and get just a flashes of a picture about 30 or 40 sec.than just disappear,than ur LCD inverter board is the problems it dead.

If all other devices work with the tv.It ur cable box,unplug it,replug it an hour later.Than wait about 10-15 mins let the software update for the cable box.This should work,not call the cable company explain it to them to send u a new box.

ON MY LG 62SX4D THE HDMI SOUND DOES NOT WORK. THE PICTURE IS GREAT BUT THE SOUND IS BROKEN AND DISTORTED. WHAT COULD BE THE PROBLEM AND WHAT WOULD IT COST TO REPAIR?

No i just thought it sounded like a odd problem i've seen before . In your case I'd expect the lamp p/n 6912b22007 or possibly if not the lamp then a bad ballast p/n 6316000009b

It's probably time to buy a new lamp. They can be very expensive to buy, sometimes up to 400 or 500 dollars. If you think the lamp might be failing prematurely, contact LG's support or warranty department to see what your options are. If you must buy a new lamp, you should check into relamping the existing housing for the bulb. Some bulbs are easy to change the bulb and leave the reflector, saving you money, however, most of them are not easy to change. you'll have to check online.

Lamp would be the first thing to check but lamp failure will not cause the picture to be fussy. Lamp only affects brightness. Nor would it cause sound to go out.It could be several thing . Diagnosis by qualified serv tech will be required.

very possible unit has bad optical engine .May not be worth repairing.Optical engine is complete unit that includes lamp,LCD panels, fans,optics and other parts.They come complete and cost about 3-6 hundred dollars ..thanks

hi first of all u should check ur transistor connections.Check your Horizontal and vertical output transistors.You should also check the horizontal and vertical yoke connections as well as your low voltage regulators.... if any of these got damaged u should purchase a new one.. but try to purchase with the help of a tv service assistant...
thank u!!!
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