Question about JVC HD-52G886 52" Rear Projection HDTV

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No picture just black screen

No picture just a black screen. no audio. power light stays on. lamplight will blink slowly times then shut off. remote doesn't work except to power on. I can hear the fan humming noise. to power down I have to unplug. please help me so I wont have to read a book or go play outside. thank you.

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  • 18 Answers

Sounds like the lamp went out in it. change lamp and u should get sound and picture

Posted on Sep 19, 2013

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Posted on Jan 02, 2017

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SOURCE: 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

Posted on Dec 06, 2007

SOURCE: JVC HD-527575 problem

We just had the same problem. The Projector lamp is burned out. You can get the lamp at Electrified.com. Their phone # is 800-678-8585

Posted on Oct 22, 2008

  • 1 Answer

SOURCE: jvc tv

when both the blue light and red light are blinking it means 1 of 3 things. 1. lamp replacement. This often works everytime for the repair. TIP!!! DO NOT USE ANY OTHER LAMPS OTHER THAN JVC AUTHENTIC LAMPS. ANY OTHERS AND YOU RISK DAMAGING YOUR TV FURTHER. 2. the fans are not working properly or need to be replaced. They need to be cleaned every so often and they will stop working from burn-out if not done so. This repair will cost you less than 100 dollars. 3. The ballasts are defective and need to be replaced. The ballasts themselves run about 150 dollars. I tell you I have fixed this TV more times than I care to count, not to mention the number of lamps I have gone through. The guy at the TV repair place now knows me by name when i come to buy lamps. :(

Posted on Dec 07, 2008

  • 1 Answer

SOURCE: Cannot see picture....

you probobaly. need a new bulb, my dad had the same problem. he orderd a new bulb off the internet and now it works just fine

Posted on Jan 21, 2009

  • 2 Answers

SOURCE: JVC AV-56WP74

Try unplugging converance board if the tv turns on and has HV replace converance chips

Posted on Apr 25, 2009

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Finlux tv showing black screen after switching on by remote. standby light is flashing buy mo picture or sound


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
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The only thing you can do is look for television repairers in Yellow Pages and take it in for service, or take to the shop where you purchased it.

You can try pressing the button on the Remote for 'Source', just to make sure you aren't on a black screen with no signal input?

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Power lights blinks green for a few seconds then goes off and warning light comes on just replaced lamplight what to do next


If it uses a lamp (DLP) it has 2 or 3 fans---if lucky there is enough dust and dirt inside to cause this--air is pulled in front of set and exits rear of set.

At shop where I work the first thing we do is take it on a cart outside and with the rear cover removed use a air compressor to clean all the dust from fans and intake and exhaust areas out.

l have seen this more than one time solve the problem and it is fairly easy to do or try---do it outside as if dirty it will look like a dust storm.

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Check your fuse at the battery. While AGU glass fuses "look" good, when you read the voltage AFTER the fuse, you can only be getting 5 volts or so. I can't tell you how many times I have seen this.

Larry T
Winona Lake, IN
http://www.cybersoundsaudio.com/cybersounds/vehiclepics.html

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