Question about JVC AV-56WP74 56" Rear Projection HDTV-Ready Television

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Someone offered me a jvc hdtv av-56wp74,and one person said just the bulb in the lamp has to be replaced;then when called jvc they said i had to by colored tubes for 300.00 each,,,,who do i believe

Now i've been told by one repair person,it can be done;that jvc just wants to spend my money

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  • 162 Answers

The tubes rarely fail in this model so it may be a convergence issue instead. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed.

Here is an example video


Posted on Apr 19, 2012

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Posted on Jan 02, 2017

Noggin
  • 944 Answers

SOURCE: JVC AV-56WP74 convergence board

This link works for me; http://www.vancebaldwin.com/ hope this helps :) PS your search/security settings must need tweaking if you didn't get that link from google.

Posted on Jul 26, 2007

Slinteriors
  • 8617 Answers

SOURCE: convergence problem with my jvc tv

Its actually a easy repair but its recommended that the convergence resistors need replacement as well. You can get the parts at the following link and they provide free detailed instructions with pictures. You need two STK392-110 Convergence ICs and you would need the JVC convergence Resistor kit #1 also. Heres the link.
http://servicemanuals.vstore.ca/

Posted on Aug 29, 2008

premtech
  • 934 Answers

SOURCE: JVC AV-56WP74 projection TV green sagging and can not be adjusted out.

The convergence amps need to be replaced. If you're having a shop do this call around and ask what they charge for repairing the convergence. If you're doing this repair this set uses two stk392-110 Sanyo built amps. You will also need to test and possibly replace one or more of the 1.5 ohm feed resistors in that circuit.
If you're doing this at component level try Acme in Florida for amps and resistors: 1-800-575-9833 http://www.acme-sales.net/index.shtml and if you're doing this at modular level send it to PTS http://www.ptscorp.com/ 1-800-844-7871
Good luck!
Bill

Posted on Nov 27, 2007

  • 90 Answers

SOURCE: red convergence will not line up on my jvc 56 inch

You need to pull the front grill cover/panel off the front of the tv. Remove screws (4) from back that hold it on, also 2 small ones behind front video input door. Then remove access panel. The ckt board closest to you is the convergence amplifier board. You should replace both amplifiers (stk392-110 or 120) and any burnt/open resistors you find near the amps.(use the same value resistors as the corresponding resistors in the blue amp ckt)

Posted on Jul 08, 2009

  • 157 Answers

SOURCE: I just replaced the convergence board on my JVC

you also need to check and replace low value resistors in that circiut.they are all 1 watt,usually they get discolored when stressed.R842 2.2 ohm,R854 and R846 1.5 ohm,R850 2.2 ohm,R858 3.3 ohm,R862 1.8 ohm.they must be the exact value available in MD from surburban electronics.please note stk392-110 upgrade to stk392-150 for future referance.ONCE AGAIN CHECK ALL LOW VALUE RESISTORS

Posted on Sep 18, 2009

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AV-56WP74 the convergence is off. blue is way out!


You will need to replace the Convergence ICs and resistors you can get the JVC repair kit called the AV48WP74-65WP74 convergence repair kit from www.tvrepairworld.com which contains the ICs , resistors and the CD with instructions,

Sep 23, 2010 | JVC AV-56WP74 56" Rear Projection...

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I NEED TO REPLACE THE LAMP. HOW DO I GET TO IT


The AV56WP74 has three CRTs instead of a lamp. You can get parts from www.tvrepairworld.com

Apr 02, 2010 | JVC AV-56WP74 56" Rear Projection...

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BOUGHT JVC AV-56WP74 IN JUNE 2004. 52


It is worth getting an estimate. From the symptom you explained, it looks like the horizontal output transistor became defective.

Jan 16, 2010 | JVC AV-56WP74 56" Rear Projection...

1 Answer

What is really wrong with a jvc television? I heard the light bulb goes out ever three months, is that true? Barb


the AV56WP74 is a three CRT rear projection which has CRTs ( Picture Tubes) It doesnt have lamps or Bulbs

Apr 02, 2009 | JVC AV-56WP74 56" Rear Projection...

2 Answers

DVI Module on JVC AV-56WP74


hit sleep timer while that is still displayed at 0 hit display and v.status on your remote (make sure the switches on the remote are set to tv and the other switch is set to vcr) that will get you service mode

Dec 06, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Need service manual...please


you can get your manual here http://www.online-owners-manual.com/av-56wp74-ha-jvc.html

Nov 24, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Convergence problem with my jvc tv


Its actually a easy repair but its recommended that the convergence resistors need replacement as well. You can get the parts at the following link and they provide free detailed instructions with pictures. You need two STK392-110 Convergence ICs and you would need the JVC convergence Resistor kit #1 also. Heres the link.
http://servicemanuals.vstore.ca/

Aug 29, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

RED BULB(LENS) PROBLEM...AND QUESTION?


no, dont need to replace all 3, adjust g2 to compensate, along with drives and cutoffs

Jun 27, 2007 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Convergence problem


I have this exact model TV, and my red bulb was the primary culprit. I almost had it, but then a lot of fluid came from underneath the bulb? I had to turn it off in fear of electricution. Ended up selling the TV.

May 19, 2007 | JVC AV-56WP74 56" Rear Projection...

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