JVC AV-48WP30 convergence went out, replaced chips, still probs

you will need to install a convergence repair kit. You can get the convergence repair kit for your model at www.tvrepairworld.com which also contains the CD with step by step instructions for the repair.

some how the convergence ckt went bad,common problem to pj televisions.

Hello

The ticking is from the the power supply trying to start. (Sometimes you can here from the speakers). Something else in the set is holding down the startup process. Why did you replace the convergence chips? Did you replace with the exact version of chip? Did you refloat the chips or were they socketed? What was the original problem? If the original problem was just bad convergence then I would say that something went wrong when you replace the chips. I.E. bad chip, wrong version, bad solder connection, pin bent in socket. Retrace you steps and post again.

this is very common.. you need to go here Re: Convergence problems on AV-48WP30 then read what it says. There are 2 chips to be replaced to fix it.

take off the front panel and unplug the convergance board up front just behinf panel if the set now comes on replace your con amps if not you have a power supply issue more than likly the con amps are bad

Power supply needs to be replaced this time.

Its located in the front behind the speaker panel there s a nother small access panel the convergence board is right there on the right hand side up front.

Chances are there are other resistors open

it looks like theres a wave in the top of my screen on my jvc av-48wp30 not sure but i think it has something to do with the bulbs because the projection mirror wasfine and all wires seemed to be hooked up properly.. can you help? tell me where i can find the bulbs to replace them?

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.