Hi Jeff, and All; Mine is using 3 of the STK391-020 on the Convergence Amp module. I replaced them, and NO help. All the 1 ohm resistors are OK. All my + and - voltages (+26, -26, and + 16) to both the output board, and the registration board are all present. The 110K and the 82K ohm resistors (R3243, and R3244) on the SMPS board are also OK.
I been trying to do a complete convergence alignment, but it's starting to drive me crazy. All the controls on the registration board seem to work normal, but, I'll be damned if I can swing them all into place. I am usually pretty good at performimg dynamic convergence, but,...not this time, so there may still be a bad componant somewhere. I even tried centering all the controls, and starting over again. I can get it fairly close, but not close enough to be anywhere near acceptable. One more clue: When I adjust any ( Red, Green, or Blue) of the G-2 screen controls, the vertical retrace line near the bottom of the screen has a nasty 1/2 inch glitch in it. Might have something to do with the problem, but I'm not sure where to look. Maybe a bad e-cap somewhere. Thanks, anyway, 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: Intrepid Video Support <[EMAIL PROTECTED]> To: ELECTRONICS PROFESSIONALS LIST <[EMAIL PROTECTED]> Date: Wednesday, April 21, 2004 8:54 AM Subject: Re: [Techs] Zenith PVR4660VK Pix is bowed equally on top, bottom,and sides, and convergence is bad. >LeRoy, >Look on your Tech Repair CD for 9-1690. >Zenith\9-1690\Pincushion problem after Smps module replaced\\\\Registration module 9-1690-01: Often fails >in conjunction with smps.Stk392-110 (2) and (4) 1 ohm 1 w resistors required\\\\\\\\ > >If those resistors are smoked, replace the STK's. >If not, there is a surface mount resistors R4151M(I think), near the connector to the large signal board >that opens. >Rule of thumb, if any of the one ohm resistors are open, replace the IC's. >Jeff >-- >Intrepid Video TV/VCR Repair >263 S Front St, Steelton PA 17113 >717-939-7708; (F) 717-564-4952 >www.intrepid-video.com www.tech-repair.net >----- Original Message ----- >From: "LeRoy Westlund" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Tuesday, April 20, 2004 11:54 PM >Subject: [Techs] Zenith PVR4660VK Pix is bowed equally on top, bottom,and sides, and convergence is bad. > > >Hi members, >I repaired my focus problems by replacing the Focus block. I still have bad >convergence, and the pix is bowed equally on top, bottom, and both sides. >Does anybody have a fix listed for this problem ? >I don't want to buy convergence amps, cause I'm pretty sure it won't fix the >problem. >I'll buy some if you guys think I need them. >Can't afford to waste money buying parts that won't help. So far,..so >good,...but,..I need a quck fix,...bad ! > >Any help is appreciated, >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] > > > >_______________________________________________ >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 > _______________________________________________ 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
