[TechAssist] Re: RCA PTV ((PTK169)) Too Dark (HV Splitter?)
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Tue, 22 Jul 2003 07:34:49 -0400
There are a multitude of things that can cause repeat HOT failure. What is
the B+ running at? I would replace the following components for starters (I
see that you have already replaced C4401 and C4402):
C4102
C4104
C4108
C4145
CR4118
CR4401
CR4402
Q4302
Then check the following:
C4112
C4311
R4114
Also remember you may have a bad flyback.
Bob Waterman, CET® #RI-28
Master Technician License #9109
Service Manager / Parts Manager
Gemini Computer, TV, & Security Alarms
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx
www.geminicomputertvsecurityalarms.com
----- Original Message -----
From: "Bil Green" <tv.vcrrepair@xxxxxxxxxxx>
To: ".TECHASSIST @ freelists . org" <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, July 22, 2003 7:18 AM
Subject: [TechAssist] RCA PTV ((PTK169)) Too Dark (HV Splitter?)
> RCA PTV
> Model: P46732BA
> Chassis: PTK169
>
> HOT was shorted
>
> Replaced HOT, .047mf and .015mf box type capacitors
> and both diodes (all in HOT collector circuit).
>
> Checked and soldered horiz drive transformer (was OK)
>
> TV powered up with HV, but screen intemittently goes
> black (was not doing this before HOT blew out)
>
> Does the HV splitter sometimes cause the HOT to fail
> and/or cause intermittent brightness?
>
>
> --
> Best regards,
>
> Bil Green
> 2001 TV VCR
> Mammoth Lakes, CA 93546
> 760-934-2001 mailto:tv.vcrrepair@xxxxxxxxxxx
>
>
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