JVC AV-48WP30 48" Rear Projection Television - Answered Questions & Fixed issues

Start at the wall plug. Did a breaker trip for that outlet? Next use a multimeter to check voltage at the power input to the TV where the power cord connects to the mainboard. Be sure you are checking AC voltage. Next check DC voltage at the power switch on the inbound side of the switch. The power switch is usually after the transformer and AC to DC circuit. If you are getting power to all three places, check the other side of the on/off button. This will eliminate most of the power-related circuit. Also, look for blown capacitors, or burned areas around the power circuit.

JVC AV-48WP30... | Answered on Nov 28, 2017 | 201 views

"wont light up... ..what have I zapped.."
Hi G...
As long as you didn't leave stray cables dangling around from the removed DVD, there should not be any short circuits.
If you did, something may have touched where it shouldn't and shut down or blown the electronics.
Another cause could be the self-protection firmware detects a fault, due to wrong amperage or an 'open circuit' condition.
ie: The missing DVD module or part could be confusing the TV.

JVC AV-48WP30... | Answered on Oct 16, 2017 | 109 views

Best choice here is to just replace the TV.

JVC AV-48WP30... | Answered on May 12, 2017 | 62 views

it is the problem of unexpected

JVC AV-48WP30... | Answered on Apr 09, 2017 | 179 views

If lcd set the issue may be with the T con board which is responsible for video and any aberrations that you see on screen.

JVC AV-48WP30... | Answered on Mar 24, 2017 | 268 views

If you have no video and its making a popping noise its mostlikely shorted convergence circuits. Contact www.TvRepairKits.com and ask them to make you a kit for chirping sets.

JVC AV-48WP30... | Answered on Nov 18, 2016 | 338 views

The question is old, but this might still help someone.

I had to replace mine on the 55" model, and I went with the STK 392-150's. The cause of failure is normally overheating, and with mine they did a lousy job of applying thermal paste to the backs of the ICs. (as you can see in the pic, so I'm sure that is why they failed). Depending on where you buy them, you can probably find the 150s or 180s online for the same or lower price anyway, so go with the higher power rating since that means they will likely withstand more heat for longer. But make sure you buy a good thermal paste and apply it evenly and correctly. Mine is working great now going on 3 months, I used Tuniq TX-4 paste. BTW, I'm a lousy solderer but I removed the old and soldered-on the new chips by hand. It looked pretty rough but ended up working perfectly. Anyone can do it!

JVC AV-48WP30... | Answered on Oct 18, 2016 | 120 views

must be the power supply or a fuse ,does the fan come on and a orange light beside the power light flick on and off?if so count the blinks before it shuts off could be the lamp program also,just refer to the manual that you can download freee from JVC M anuals and count the amount of orange flickers.

JVC AV-48WP30... | Answered on Sep 27, 2014 | 114 views

go through menu untill you find screen page and change aspect ratio setting use up and down volume to change it

JVC AV-48WP30... | Answered on Aug 23, 2014 | 277 views

what are you asking?how to change,if you have the remote use theater pro or natural cinema for movies ,and also split screen,withoiut remote manually scroll to picture page and use up and down settings to set it on choice

JVC AV-48WP30... | Answered on Aug 23, 2014 | 44 views

Easy answer, most of the time verticl lines are due to dirty lenses and bulbs inside of the tv, This can be resolved 1 of two ways: either you can open the back of the tv and clean both the lenses and bulbs with a special lens cleaner or you can pay a tv repair man to do it they usually charge anywhere from $60.00- $150.00.

JVC AV-48WP30... | Answered on Aug 13, 2014 | 41 views

This set is fairly easy to fix for this trouble. A AV48p30 usually takes me about 40 minutes to fix for this problem.

It uses two of the STK-392-110 convergence chips. The repair involves two things--getting at the chips (easy) and being able to unsolder them and replace them.

You can buy almost everything you will need on Ebay for under 30 dollars (I can tell you who to look for there)

Most shops are going to get 300 or more for this kind of repair so if you or someone you know can do it you can save a lot of money.

I can tell you how to get at the chips and also everything you will need to do the repair.

If this information has helped you rate this solution as I do this here for free.

If you want the detailed instructions let me know and I will post them here for you.


JVC AV-48WP30... | Answered on Aug 18, 2013 | 300 views

Look first in customer menu for a setting : Speakers ON or OFF.

JVC AV-48WP30... | Answered on Dec 22, 2012 | 15 views

Aside from the customer menu which requires the original remote to adjust in there is a hidden tech menu which also requires knowing how to get into it, not real easy.

Look first with the original remote to see if it will adjust to a acceptable picture in the main menu.

JVC AV-48WP30... | Answered on Dec 17, 2012 | 25 views

Next time you see it select convergence in the menu, there is a way to adjust or at least see if it is out.

This is actually not a real hard set for this repair IF it is your problem.

The board that needs to be removed to get at the parts is not large and does not require a lot of time to get out.

The set uses two of the STK-392-110 chips for this---at for example Suburban Electronics you can get a pair with shipping for under 20 dollars.

In the customer convergence mode what you are looking for is red lines where they do not belong and if red looking to see red will move left/right and up down in a area that looks off.

If the red for example will not move in some direction change both chips.

If you want help I will attach some photos here of exactly what the board in this model looks like and the chips are easy to see.

Confirm first this is your problem.

I can tell you exactly how to get the board out and what you will need for the repair.

There are "kits" for this but they run over 80 dollars and have a number of parts you will never need or use.

If you have a soldering iron and know how to solder the repair should cost you in parts etc under 30 dollars.

Take it from me, I have done a few hundred of this model for this problem. Pretty good investment for a set with few other problems, life on the replacement parts is 5-7 years.

Let me know if want more information or help.


JVC AV-48WP30... | Answered on Dec 18, 2012 | 132 views

I will presume it is a AV and not a AB model. Screen may or may not be available from JVC but if it is will be expensive.

Google the model with 'replacement screen" as several sellers have replacements----outer should be clear protective screen and the unit will have 2 more behind it.

another option might be EBAY where junked sets are offered for parts---get the entire front frame with all screens?

JVC AV-48WP30... | Answered on Dec 03, 2012 | 57 views

You can get the convergence repair kit for most models from www.tvrepairworld.com the its contain the parts and the CD with repair instructions.

JVC AV-48WP30... | Answered on Nov 08, 2012 | 18 views

This part rarely fails in this set so let me know if sweep transistor is shorted or what?

To answer: Contact JVC with the correct model number and try to get the part number---nothing JVC will be cheap but with the actual part number you can Google to see if available.

I would also suggest checking someone like Suburban Electronics who sells a lot of these parts---online catalog and or phone.


JVC AV-48WP30... | Answered on Oct 22, 2012 | 61 views

model indicated should have a power light---usually blue--is it on or blinking constantly?

JVC AV-48WP30... | Answered on Jun 26, 2012 | 19 views

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