Question about Mitsubishi VS-6043 60" Rear Projection Television

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No picture or sound,clicking in back and speakers thump to clicking noise

Picture went out then the sound.can unplug connector on side of red tube only and get sound back and clicking stops.also picture will flicker when this is done then it goes completely out again but still has sound and no clicking noise. and no thumping through speakers. any help will be appreciated. thank you

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Tubes are messed up, to fix is REALLY expensive, trash it or part out what can still be used.

Posted on May 28, 2008

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Jvc 56 inch television went black, then a large thumping noise, and I tried shutting off the power and could not, so I had to unplug the television; the television now will not come on.


sounds like the WP30 or WP74 series that has a convergence shutdown which will usually cause the thumping through the speakers. Unplug the convergence power board and see if the set will power up. Do not remove the rear cover the board is up front behind the speaker grille. Never remove the rear cover on a JVC rear projection as it can damage the digital circuits due to the safety interlock on various JVC models.

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I have a 65" hitachi rear projection. I installed


This sounds like it is due to the lamp on the projector going bad. Replacing the lamp should fix the problem. Contact Hitachi to find a suitable replacement lamp.

Mar 08, 2011 | Hitachi Projection Televisions

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I have a Toshiba 51h84.I push the power button and I get a solid red power light. There is a click from inside, kind of like a relay clicking on. No picture, no sound. If I leave it on I get an occasional...


Tv have "LAMP" indication LED light blinking?The tv projection lamp is dead,require changing.Hearing alot of clickings sound too?Mean the board,call the Ballast board is dead.Require change the Ballast too.The Ballast board,the board that help to ignite the projection lamp.

Aug 06, 2010 | Toshiba 51H84 51" Rear Projection...

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RCA P61960 projection screen. no picture, no sound. tries but shuts off.


It will depend on the Chassis number you have but it sounds like a bad Deflection module or a bad Convergence power supply module. The Convergence Power supply module is on the left looking from the back mounted above the deflection module. On newer models the picture tubes can short and put these sets into shut down mode ( Three Trys). Start by unplugging the CRT modules off the neck of the tubes one at a time. If it doesn't come on you have eliminated the tubes. There will be a Red and Black set of wires from the deflection module to the convergence power supply module. Unplug it. If it fires up then it's the convergence power supply module. If not it will probably be the deflection module. The flayback transformer is a common problem along with several bad caps towards the front of the board. Let me know if this fixes it.

Oct 02, 2008 | RCA P61960 61" Rear Projection Television

1 Answer

No picture or sound


What model number is your set?

Feb 25, 2008 | Projection Televisions

1 Answer

JVC AV-48WP30 will not give a picture


Replace the convergence IC`s again using original Sanyo chips (STK 392-110 or STK 392-180). Make sure to use plenty of heat sink compound. Coat the entire back side of the chips. Also look to see if any of the low ohm resistors are burned. A shorted chip will cause the thumping sound and the set will shutdown. I am guessing that you used generic IC`s as a replacement. They are cheap and the leggs fall off when you apply too much heat during soldering. Dont wory about the CRT driver or the deflection board, they are probably fine.

Dec 12, 2007 | JVC AV-48WP30 48" Rear Projection...

1 Answer

No picture and thumping sound


I just had the same problem with my TV and looking on the web I found a site that helped. The site was www.freelists.org/archives/techassist/11-24/msg00326.html The entry said Raster NO GO / Pulsing sound from speakers / Poss ant relay clicks in time to the pulsing. It recommended replacing C816 and C5a28 (100uf /200v Caps) C5a03 (4.7uf / 200v cap) My set did not have the ant relay clicks and I could not fine the C816 cap on the circuit board and I didn't have the schematic. I found the C5a28 and C5a03 caps about the middle of the circuit board in the same circuit (around the metal L shaped bracket). The C5a28 cap was bad and the C5a03 cap was fine. I replaced the C5a28 cap and the set works fine now.

Oct 24, 2007 | Mitsubishi VS-6043 60" Rear Projection...

1 Answer

No responce except thumping noise


PLEASE TRY TO CHANGE AGAIN THE CONVERGANCE IC'S

Oct 02, 2007 | JVC AV-48WP30 48" Rear Projection...

2 Answers

Popping noises and no picture or sound


try replacing the stk's on the deflection board (making sure that all of the resistors on the board are OK and that there are no solder cracks I found one of the jumpers had a bad solder joint on the one I worked on) but if that doesn't fix I have some raw research that might give you somewhere to start :
No. The CRT driver ICs are prone to shorting and cause this symptom (I just had one with those very symptoms and the green CRT driver IC was shorted). Disconnecting the CRT board does not clear the short on the board. Often then is a small burn mark on the CRT board under the affected IC (but not always). The IC should be a TDA6111Q. Be sure to note the proper position
of the IC as it should face with the letters TOWARD the heat sink!!!!

Larry, Check the CRT driver ICs on each of the CRT boards.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxx
Hi Guys, I don`t see many JVC`s and don`t have the print for this AV48WP30, went out this morning and as customer claimed on phone when you plug set in and turn on it makes a loud thump thump in both speakers 20-30 times then relay clicks, the thump stops, and blue idiot light on front goes dim/bright, dim/bright, have to unplug set to start this same scenario over again. Never develops HV or audio, Will order the service manual today, but would like to know if anyone has seen this before (should say "heard" this before)
I would disconnect each crt board and hv lead one at a time and try. Have seen several bad tubes on that model. The only other problem I have seen on that set is bad convergence amps, however that doesn't cause shutdown.
Perry Bower
Electric Medic
From Tech Repair CD:
JVC\AV48WP74\just went click*click*click when turned on Video drive IC (IC1101) on the red CRT module
shorted. It looked like bad solder on the B+ was the cause

Frequently Used Top Five Repair Parts by symptom code
MODEL NUMBER : AV48WP30 - TV
SYMPTOM CODE : DEAD
TOP FIVE PARTS :
2SC5552-RL
2SC5904-RL
QQH0113-002
STR-F6629B/F7
STK392-110
Above from JVC Web site, also I have seen shorted video drive IC's on the crt boards short and cause this symptom. Try unplugging the 200 volt source to the crt boards and see it the set powers up and stays on. There is a B+ relay which supplies 130 Volts to the horizontal output circuit. Is this relay energizing? I takes about five seconds after the power is turned on for it to energize. If a short is detected on the 130 volt line the blue power lamp on the front will do what you describe and the relay will pulse on and off. (David)

Symptom:
Non-functional Digital Input
Solution:
1. Power off the unit
2. Disconnect the digital input if it is connected
3. Remove the rear cover
4. On the digital input module, using a shorting pin (PC type) or a
jumper, short Pin 1 and Pin 2 of the
SB connector
5. Power on the unit
6. Unplug the unit and remove the shorting pin or the jumper
7. Re-attach the unit’s rear cover
8. Power on the unit, and input the digital source

Jan 16, 2007 | JVC AV-48WP74 48" Rear Projection...

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