Frank, I'm almost poitive that you put one or both of the bi-polar Tandalam caps back in showing the wrong polarity. The end with the band on it, is +. The missing cap does not need to be there. The same thing happened to me, a few months ago.
LLW LeRoy Westlund Westlund TV & Electronics 97 North Main "Where there's a will,... Centerfield, UT 84622-0087 There's always a way." Ph./Fax 435-528-3822 mailto:[EMAIL PROTECTED] -----Original Message----- From: HQ Electronics <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] <[EMAIL PROTECTED]> Date: Tuesday, July 13, 2004 12:59 PM Subject: [Techs] Mits vert help needed. >Make: Mitsubishi >Model: CS3515R >Sams: 3055 Note- not 100% vert circuit correct for this model. one cap >shown in sch. missing on bd from factory. Also 30v PS feed shows 12 pins on >IHVT this one has 10 as near as I can tell. >Problem: came in with no vertical. >I now have vert sweep, but it does not fully fill the screen. The top 1.5-2" >is black with retrace lines below that. > I used QUALITY parts, all checked before I replaced them, and even subbed >the known good quality vert IC with another good quality one. (From an >entirely different source & batch --just in case) > >This one has me flummoxed! >I have replaced the following : >IC4E1- LA7838 >C538 [EMAIL PROTECTED] >C4E2 [EMAIL PROTECTED] >C4e4 [EMAIL PROTECTED] >C5J9 [EMAIL PROTECTED] >C965 [EMAIL PROTECTED] >C4F3 [EMAIL PROTECTED] >[EMAIL PROTECTED] >[EMAIL PROTECTED] >Q4A1 2SC2234 subbed with 2SC2235 (30 V reg.) >Note: 30V line to vert solid at 29.5VDC > >There are 2 bipolar elect caps that I ESR'd-- OK-- and one cap that shows >elect in the schematic but is a 1 mfd mylar in the set. > >I have repaired several traces the "fish oil" has damaged and double checked >that I put in the 'lytics with proper polarity. > The set will slowly lose more vertical the longer its left on, >predominantly from the top, but does pull up from the bottom too. > >What have I missed?? >(Could this be a yoke problem?) > >Thanks! >Frank > > >-- >HQ Electronics >218 N 1st St >Shelton WA 98584 >360-426-3336 (Shared phone and fax) >http://www.hqelec.com > > >--- >Outgoing mail is certified Virus Free. >Checked by AVG anti-virus system (http://www.grisoft.com). >Version: 6.0.719 / Virus Database: 475 - Release Date: 7/12/2004 > > >_______________________________________________ >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 > _______________________________________________ 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
