[TechAssist] Re: RCA G35300WK CTC169BA Blowing Pincushion
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 7 Dec 2001 08:07:47 -0600
did you change the hot?
al marquardt
ampm@xxxxxxx
----- Original Message -----
From: "R Herring" <supertek66@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, December 06, 2001 8:29 PM
Subject: [TechAssist] Re: RCA G35300WK CTC169BA Blowing Pincushion
>
> Hey group,
> this dog is a pain. I changed C4705 now read normal +26v at U4801 pin 10
> with horizontal yoke disconnected all is well, vertical waveforms are
normal
> at TP45 (vert yoke), horizontal waveforms are normal at Q4401 base. All
run
> voltages are within tolerance. When turn off connect hor yoke and power up
> CR4401 pops.
> Besides parts listed in previous post have also replaced CR4805, Q4804,
> C4801, CR4806, C4705
> Has anyone seen this or have a good idea what else to look for?
> I'm out of patience and so is my customer.
> TIA
> Robert
> H&H Electronics Inc
> supertek66@xxxxxxxxxxx
> robert_herring@xxxxxxxx
>
> ----- Original Message -----
> From: "R Herring" <supertek66@xxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, November 29, 2001 10:48 PM
> Subject: [TechAssist] RCA G35300WK CTC169BA Blowing Pincushion
>
>
> > HELP !
> > this dog is really bite'n me
> > I repaired power supply usual C4102,C4105,C4108,CR4118,C4143,C4145.
> > When powered up R4719 at C-Q4705 on/off switch smoked and found
Q4702,and
> CR4401 damper shorted,
> > so replaced those and C4401,C4402,CR4402.
> > Now U4801, Q4802, CR4401 blows their top when powered up if yoke
> connected.
> > Standby volts +153, +7.4, +13.5,+17 and -17
> > Will come on and run if leave horizontal yoke disconnected.
> > Run voltage +143.3 others ok except +26v off T4401 pin 10 reads +36v
> > now needs U4801,Q4802,CR4401,CR4805,Q4804
> > Have tried subbing different crt/yoke with same results.
> > Please anyone that may have seen this or have idea my ears are open.
> > TIA
> > Robert
> > H&H Electronics Inc
> > supertek66@xxxxxxxxxxx
> > robert_herring@xxxxxxxx
> >
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