Don't know Gary, this was listed in my vcr data file under VG4025, but the symptoms were what you described, so I thought that may be the same. It was listed as the precision feed back for the power supply. I don't have any pwr supply symptoms under the models that you listed. This is probably a different chassis. But, it was worth a shot. Good hunting. Paul W C&W Electronics From: "GJCHAMBERS" <gjchambers@xxxxxxxxxxx> Reply-To: techassist@xxxxxxxxxxxxx To: <techassist@xxxxxxxxxxxxx> Subject: [TechAssist] Re: RCA VCR VR528/VG4039(GE VERSION) INTERMITTANT POWER Date: Wed, 31 Oct 2001 19:04:29 -0400 I replaced the voltage comparator ic ip003 but dont see an ic3. is this the same one? has 8 pins. thanks , gary Gary Chambers Chambers T V Bradenton,Florida Since 1982 ----- Original Message ----- From: "C&W Electronics" <c_w_electronics@xxxxxxxxxxx> To: <techassist@xxxxxxxxxxxxx> Sent: Wednesday, October 31, 2001 7:51 PM Subject: [TechAssist] Re: RCA VCR VR528/VG4039(GE VERSION) INTERMITTANT POWER > > Gary, check for defective IC3(KA431Z) in secondary of p/s. RCA#212572. I > have this listed as defective like the C09 bad on other sets. The set only > blinks. > Paul W > C&W Electronics > > > From: "GJCHAMBERS" <gjchambers@xxxxxxxxxxx> > Reply-To: techassist@xxxxxxxxxxxxx > To: <techassist@xxxxxxxxxxxxx> > Subject: [TechAssist] RCA VCR VR528/VG4039(GE VERSION) INTERMITTANT POWER > Date: Wed, 31 Oct 2001 17:48:06 -0400 > > This vcr had diodes dpo26 and dp027 shorted,after replacing them vcr now > blinks on and off about once a second.the display blinks at this rate as > well. > i replaced cp007,cp008, ipoo1,ip003. > also ck'ed the resistors on primary side of smps transformer and all ck ok. > all voltages on secondary pulse up and down as well. > acts sorta like the ones that used that 22 uf bipolar cap in primary. > sometimes will stay on,untill you push a button, then starts cycling again. > any ideas? > thanks, > gary > Gary Chambers > Chambers T V > Bradenton,Florida > Since 1982 > > > Help make your TechAssist online repair tips > database better! Submit your fixes here: > http://www.circuitwork.com/techassist/tip/#tips > To unsubscribe write to: > techassist-request@xxxxxxxxxxxxx > with unsubscribe in the subject line. > > > _________________________________________________________________ > Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp > > Help make your TechAssist online repair tips > database better! Submit your fixes here: > http://www.circuitwork.com/techassist/tip/#tips > To unsubscribe write to: > techassist-request@xxxxxxxxxxxxx > with unsubscribe in the subject line. Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line. _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips To unsubscribe write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.