[TechAssist] Re: Hitachi CU4601B (VP8X2 chassis) with intermittent luminance
- From: "Phillip R. Hull" <phil245@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 27 Jun 2002 14:43:33 -0400
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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