[TechAssist] Re: Hitachi CU4601B (VP8X2 chassis) with intermittent luminance

No, I thought of that too! Was clean as a whistle!

Bob Waterman, CET®
Service Manager
Gemini Computer, TV, & Security Alarm Systems, Inc.
(508)695-7302
(508)695-7769 FAX
geminitv@xxxxxxxxxxxxxxxx
geminitv@xxxxxxx

----- Original Message -----
From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, June 27, 2002 2:43 PM
Subject: [TechAssist] Re: Hitachi CU4601B (VP8X2 chassis) with intermittent
luminance


>
> Did you remove all the old glue ?  If there is any?
> Phillip R Hull
> phil245@xxxxxxxxxxxxx
> ----- Original Message -----
> From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Thursday, June 27, 2002 2:31 PM
> Subject: [TechAssist] Hitachi CU4601B (VP8X2 chassis) with intermittent
> luminance
>
>
> >
> > I just came back from a customer's home for a Hitach CU4601B (VP8X2
> chassis)
> > that has intermittent luminance. Another servicer referred the cutomer
to
> me
> > as he was unable to locate the problem. I replaced several capacitors on
> the
> > signal PCB (C0132,C521,C502,C303,C304,C3015,C3016,C3301, and C3303
> > Note:C0132 was reading about 14.7mfd instead of 22mfd). Still almost
> always
> > there is no luminance. However, if I tap on the board with a screwdriver
> > handle, it does seem to be a connection problem most sensitive around
> > IC3301. I spent two hours resoldering that board and went over it with a
> > fine toothed comb and jeweler's goggles but still no luck. I did not
have
> a
> > scope with me. I know the problem is on the signal board. My question is
> > does anyone have the part number for the signal PWB and know if it is
> still
> > available? And has anyone already been down this road? The set is on the
> > third floor so I want to repair it onsite.
> >
> > Bob Waterman, CET®
> > Service Manager
> > Gemini Computer, TV, & Security Alarm Systems, Inc.
> > (508)695-7302
> > (508)695-7769 FAX
> > geminitv@xxxxxxxxxxxxxxxx
> > geminitv@xxxxxxx
> >
> >
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