I purchased the STK392-110 ICs from service manual. I had read in an earlier post that it would come with instructions. I didn't receive any. Also what type and where can I buy a soldering gun that will do the job?
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Re: JVC AV-56WP74 56
Radio shack has desoldering irons cheap. Send service manuals a email, they must have forgot. they will email the instructions right out to you and that should outline all that you need to do the repair
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There are two of them that need to be replced as a set. They are both STK392-110 Convergence Ics you can get the original oem Ics from www.tvrepairworld.com they are listed under the Integrated Circuit catagory you only need the one set. They also have the convergence repair kit listed for your model under the JVC repair kits the kit has both ICs all 12 resistors and the CD with step by step repair instructions.
Convergence ICs and resistors need replacement. Very common issue. The AV48WP74 -AV65WP74 convergence repair kit from www.tvrepairworld.com has the 2 ICs and associated resistors plus the CD with repair instructions.
The convergence ICs have failed. You can get the JVC AV48WP74 - AV65WP74 convergence repair kit from www.tvrepairworld.com which has the ICs and resistors plus the CD with detailed repair instructions.
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,
A repair facility will charge 400 to 600.00 for the repair. Or you can repair it yourself if you can solder. As both convergence ICs need to be replaced. They are STK392-110 you can get replacement ICs at the following link with free instalation instructions with pictures so you can do the repair yourself. Heres the link. http://servicemanuals.vstore.ca/
You need two STK392-110 Convergence ICs. You can get repalcements at the following link, and they will provide free instalation instructions with picture so you can do the job yourself. Heres the link. http://servicemanuals.vstore.ca/
As I mentioned in the last post. I dont have the step by step. The site that sells the replacement ICs include the step by step instuctions with the new ICs. Heres the link. http://servicemanuals.vstore.ca/
The convergence ICs probably have a cracked solder joint on the foil side of the circuit board.
Re-flowing the the solder would help.
I will always replace the convergence ICs when doing this job. The labor remains the same and you will have to pay a few extra bucks for the parts.
To fix this yourself, you will need to be able to identify the two convergence ICs,in this model they are in the front of the set, have a basic knowledge of electronics and be able to use a soldering iron (Use a dielectric compound when changing any IC attached to a heat sink). You will also have to do an alignment through the service menu.
To find a servicer in your area go to:
It's the JVC servicer locater site. Call the repair shop listed and ask them what they charge for a convergence job on your set. That should help you decide which direction to go.
Hope this helps.