Hi members, I'm still struggling with this 40" Mits. I need some additional help. I have replaced the Vertical out IC (LA7833), and repaired all bad looking connections. I replaced a couple of E-caps, that I thought for sure would fix the problem, cause they tested bad. The problem has shifted from intermittent vertical after warm-up, to a solid 2" vertical deflection problem in the middle. I need someone to look at the schematic of this set, and provide me with a list of all the e-caps in the vertical ckt. I may have missed checking one somewhere along the line. Also, I see that C-454 is missing, but if I remember correctly, it was never there to start with, unless it fell out when I removed the solder. If it needs to be there, then I need to know the correct value, so I can install a new one.
Thanks for taking the time to help me. I am trying to fix this one on the floor, cause I have no help to lift it onto the bench. I have pulled the chassis 3 times, and would like to be more successful on the 4th attempt. LLW LeRoy Westlund Westlund TV & Electronics 97 North Main "At least I'll go down Centerfield, UT 84622-0087 swingin,......what a swingin Ph./Fax 435-528-3822 way to go." mailto:[EMAIL PROTECTED] -----Original Message----- From: LeRoy Westlund <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Friday, March 05, 2004 1:07 PM Subject: Mitsubishi CS-40503 has intermittent Vertical collapse after warm-up. >Hi members, >This Mitsubishi model CS-40503 has an intermittent vertical problem, after >warm-up. >I re-soldered all pins on the LA7833 vertical IC even though they looked OK, >and could find NO bad connections in the 400 series area. I replaced ONE >e-cap 100 @ 35, even though it tested OK. >I am going to order a new LA7833 vertical IC, but for some reason, I don't >think it will cure the problem. I see a couple of Tantulam caps in the area, >but I think those kind of caps never go bad,..and of course in this case >they test good. >Does anyone have any case history of a vertical problem on this set ? >Also,...does it have a PIP module in it ? ( I don't recognize any.) >Video looks good anyway, so I wouldn't suspect a PIP problem. > >TIA, >LLW > >LeRoy Westlund >Westlund TV & Electronics >97 North Main "At least I'll go down >Centerfield, UT 84622-0087 swingin,......what a swingin >Ph./Fax 435-528-3822 way to go." >mailto:[EMAIL PROTECTED] > > _______________________________________________ Tech Repair CD...order your just $49.00 plus shipping...One year of updates free. www.intrepid-video.com www.tech-repair.net Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com
