[TechAssist] Re: RCA G35300WK CTC169BA Blowing Pincushion
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Fri, 30 Nov 2001 08:27:25 -0500
Ok, first off your power supply looks good, but you need to check the caps
and diodes in the horiz circuit. Diodes won't blow the head off, but could
be a victim of a bad cap. Check them.
Damon Brunger
damon101@xxxxxxxxxxxxxx
Telrad Electronic Services
Ft Wayne, IN 46815
----- Original Message -----
From: "R Herring" <supertek66@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 29, 2001 11:48 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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