Question about RCA HD52W59 HDTV Projection Television
The chassis number is RCA ITC22 and the model is HD52W59. I was looking thru some of the responces you've wrote others on this model and saw where you offered to email them a schamatic. The set will come on but the screen in miss shaped,sunk in at the top&bottom and the colors are off. It also has no coverage submenu in the main menu which points to fl231 fuse being blown.The TV does has a coverage issue because the fl231 fuse is blown. I'm a 14 year Industrial Process Control Tech with a year degree in Electrical & and a two year degree in Electronics Technology so I'm not a complete dummy, but i'm surely not a rocket scientist either.I write Allen Bradley PLC computer code and trouble shoot machines down to board level but have'nt worked on TV's in a long time but I feel if I had a drawing, well who knows. I under stand about your issues on every thing you've been busy on it seems like all my stuff dies at the same time to. Thanks a million and save my address and don;t hesitate to contact me if I can ever help you bra. firstname.lastname@example.org
When fl231 blows it is due to bad solder joints on the flyback and Vertical IC which places a strain on DL231 and CL230 the RCA bulletin states replacing the DL231, CL23o and FL231 then reflow the solder on the flyback and the vertical IC and that should repair the issue.
Posted on Feb 02, 2009
that definately sounds like the convergence ic's have failed, you can try to find a simular schematic here ( itc 222 ) http://www.eserviceinfo.com/equipment_mfg/THOMSON_2.html
also here is some other things to try
1 in the service manual that disconnecting BW001 & BW002 on the Converagence Amplifier board may remove the load on the Convergence Power Supply , so disconnect turn on power then turn off and unplug from wall , then plug those back in and then power up , ( if you already replaced fuse and resoldered flyback)
2 resolder the flyback pins
3 check fl231 again , replace if needed
let me know if that does it or if we need to check power at the fuse or another part of the cicuit , but definately resolder ( one of rca's biggest problems)
Posted on Jan 31, 2009
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Posted on Jan 02, 2017
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