Question about Pioneer PRO-119 60" Rear Projection Television
My Pro 119 has just developed a convergence problem with the center fixed convergence green gun. The problem is in the Lower Left corner of the screen. In the convergence mode, the cross hair in that corner is pulled approxemately 2 inches toward the center (all other 8 cross hairs for the green gun are in there proper place) The convergence mode with the remote works in all 9 spots (Center and sides) with the red and blue guns. If I place a piece of paper over the center green gun, cutting off the light, the picture is then OK and the green curls upward in the lower left corner is gone (picture is then off in color, due to the green missing) The rest of the picture is OK with the green convergence, only out in the lower left corner and radiats toward the center of the picture. This is the first trouble I have had on this great Projection TV. It has been powered since I purchased it through a $400 PanaMax/Max 1500 Surge suppressor/line conditioner. Would appreciate any help on this and where would I be able to get parts. I am a retired electrical engineer and have been into the chassis of many TV's in the past and repaired. Built a Heath kit 2001 with all extras in 1980.
Do you know where those ic's are available? my red gun just went out...
Posted on Apr 20, 2010
An expert who has achieved level 3 by getting 1000 points
You have a componet out of tolerance in the green drive circuits, resistor or capacitor. If you have the service manual you should be able to take some raedings off the test points for the circuit and be able to track it down. I am enclosing a link where you can purchase the service manual for that set for 10.99. They will mail it to you unless you go back to the site and request that they email it to you by clicking on the contact us link. They also offer unlimited free support if you purchase your manual. I am one of their support techs. Hope this helps. Heres the link
http://servicemanuals.vstore.ca/
Posted on Jan 16, 2008
SOLUTION SOLUTION
CONVERGENCE SOLUTION644 views
Usually answered in minutes!
I am the person that posted this problem originally, after 2 years of having the set down I finally got busy and have fixed the problem. I replaced both convergence IC's IC2317 & IC2319 (PN STK-329-110) I did them one at a time. First the IC2317, no change. Then I replaced the IC2319, bingo, then I went to the remote convergence of the Red & Blue guns and reconverged the center cross and 9 outlining cross, and everything is now fine. I checked the powersupply board at the same time, everything looked good, but did touch up a couple joints around the HV transformer. If I have to replace the IC's again, I would go with a -120 or -150 for the higher voltage. Say this recommendation on a form after I had purchased the two IC to do the repair. Everything back together now and watching the big screen again. However was debating about a new HD TV but have decided to hold off, money tight when retired. Hopes this helps someone out there.
×