thank you for the tips, guys. i got one fixed but the other may need the little 3 pin IC, so i will order it. thanks again, Larry
[EMAIL PROTECTED] wrote: > > Larry, > >From Tech Repair CD: > Sanyo\DS31590\Dead\Touching the DVM probe to pin 27* power on* of IC801 MPU turned > set on with no > vertical. Checked pin 25 of IC801 reset and 5V was not present\\\Q831 2SA1015 reset > transistor not > turning on. It tested good but was the problem.\\\\\\\\ > > Sanyo\DS31590\Dead no relay click\could short Q681 (2SC1740) collector / emitter > switch drive* then could > start tv and every thing OK\\\Q681* R628 (1200 ohm)* D680 (ECG519)*C683 > 220mfd\\\\\\\\ > > Sanyo\DS31590\Dead. Hot Shorted\\\\Q402 (Ecg2331)*Q605 (Ecg290a)*D610 (Ecg519)*R603 > (100k)\\\\\\\\ > > Sanyo\DS31590\Dead. Was Shutting Down Periodically Before Dead\\\\Hot B+ Was Under > 100v At Power On* 80v > In Stand-By. Stand-By 80v Was Ok* But Flyback Was Pulling Down Hot B+ At Turn > On.\Fly Rang Good. > L40a00711(645 018 9579)\\\\\\\ > > Sanyo \DS31590\DEAD-lightning\\\\Repaired primary side*Q601*Q604*Q605 all > shorted-also had caps C609 blown > apart and C626 bulged like a baloon\Replaced IC601even though it checked ok.\Found > Q695 leaking. Q695 > is 2SA608F. Replaced it with a TCG290A\\\\\\ > > Jeff Dougherty > Intrepid Video TV/VCR > 263 S Front St > Steelton PA 17113 > fax...717-564-4952 > www.intrepid-video.com www.tech-repair.net > > ----- Original Message ----- > From: "larry" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, January 06, 2004 2:49 PM > Subject: [Techs] Sanyo ds31590 standby > > i replaced shorted SMP output and drive transistor. now it > starts but runs only in standby half voltages. > as per a tip i shorted q-693 base to ground and the set plays > fine. > i cant find any shorted diodes or transistors. > this must be a common problem with this model. i have 2 here > with the same symptom. > any help appreciated > thank you, > Larry > > -- > Schneider TV & Electronic Inc. > 5415 N. Wooster ave. > Dover, Ohio 44622 www.geocities.com/schntv2000/ > 330-343-0768 FCC. first class & Extra class K8WLY > > _________________________________________ > Please include original text when replying to this email. > Once you get your unit repaired, please post the fix to the group. > Order your tech repair CD today, Version 3.0 only $49.00-more monitor > tips-user friendly program. > [EMAIL PROTECTED] www.tech-repair.net > ______ > Techs mailing list > [EMAIL PROTECTED] > http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com > Go to the link above and scroll to the bottom to enter your email address -- Schneider TV & Electronic Inc. 5415 N. Wooster ave. Dover, Ohio 44622 www.geocities.com/schntv2000/ 330-343-0768 FCC. first class & Extra class K8WLY _________________________________________ Please include original text when replying to this email. Once you get your unit repaired, please post the fix to the group. Order your tech repair CD today, Version 3.0 only $49.00-more monitor tips-user friendly program. [EMAIL PROTECTED] www.tech-repair.net ______ Techs mailing list [EMAIL PROTECTED] http://intrepid-video.com/mailman/listinfo/techs_intrepid-video.com Go to the link above and scroll to the bottom to enter your email address
