Question about Pioneer PRO-200 60" Rear Projection Television
Had a convergence problem at first. Red would not move left or right during manual convergence. Also had vertical pincushion on north and south part of screen. Checked convergence board (awz6098) and replaced both stk392-110 ICs with stk392-180 ICs. Replaced one power resistor...all others checked out fine. Checked all electrolytic caps and all checked fine. Put board back in and all guns now move, but vertical pincushion is still there. Two technicial friends indicate two different things. One says that the FULL CINEMA CONVERGENCE BOARD (AWZ6108), which is a small 1 1/2" x 3" board that plugs into the main convergence board, is bad. But I do not understand how this can cause the vertical pincushion effect I am experiencing. The other says the set just needs a manual convergence using the service menu. I have the service manual (ARP2988) for this set, but it does not describe the convergence procedure in the service mode. Just refers to the operation manual which is for Joe Homeowner. The service manual (ARP2988) is really a rip off since it doesn't even have all the board schematics in it like the power board or the convergence board. It indicates that it just includes any changes from the service manual for the Pro119 and/or Pro99 (ARP2936). I am sure the service manual for the Pro119 and Pro99 has all the schematics and the service mode convergence procedure, but I can't find one on the web or even from Pioneer. So I need help with two issues. First, what views does anyone have on what can be causing the vertical pincushion effect. Second, does anyone have the service manual for the Pioneer Pro119/Pro99 or, at least, the service mode convergence procedure? Any Help would be appreciated.
Your problem is in the convergence area.you were suppose to have replaced the ic with the original stk392-110 and not 180. check also the resistors around the convergence ics
Posted on Mar 11, 2008
DUDE!!! Both manuals are available at http://www.servicemanuals.net/ I dont know where you tryed before to get a manual for these sets but both modela are available online at like 20 differant spots.. This one site is the one I trust the most, as they have 99% of any manual I have ever Needed. Good Luck
Posted on Aug 08, 2006
Whenever a component in a device is replaced it must replaced with the original part, unless the manufacture says differently.
TV sets have minute control voltages which in turn control something else - in an analog/rear projection they control larger voltages for example. It all has to do with resistors, transistors, capacitors, etc. which make up the circuits.
So even though this might appear to work I guarantee your set is not up to spec.
Posted on Jun 23, 2008
I will follow this case I want to learn abouth.....
Posted on Aug 08, 2006
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