[TechAssist] Re: Hitachi 32cx39 chass M9LXU No video FIX
- From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 11 Nov 2004 06:42:54 -0500
Actually that is "Alvie" Rodgers from Hitachi (not "Alive") who is always
willing to help and is a tremendous asset to this industry. I am proud to be
his friend. Keep up the good work Alvie! Thanks for this important feedback
from Al Gutz. The idea is to help one another and then report the feedback
when the problem is found so that we may all share this information and
distribute/record it as needed. A true "Bravo Zulu" as you fellow Navy vets
would understand.
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@xxxxxxxxxxx
----- Original Message -----
From: "Al Gutz" <alg@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, November 11, 2004 12:21 AM
Subject: [TechAssist] Re: Hitachi 32cx39 chass M9LXU No video FIX
> This is now working thanks to Alive at Hitachi.
>
> Turned out to be problem with ABL. Q500 had 0V on B & E, Q500 should be
> in full conduction. Cure was shorted C747 (.1ud) off the flyback.
> Probably took damage when old fly arcd out.
>
> Al G
>
> Al Gutz wrote:
> > Replaced the HV transformer in this and now HV works good but have on
> > video either off air or video in. Sound OK, will autoprogram tuner.
> >
> > Have video at in and out on the pip, have video at pin 15 ( video in) of
> > jungle IC TA1222bn. At the outputs I have only sync. The OSD works OK.
> > Have power saupplies OK on the J IC
> >
> > Thinking bad TA1222 unless there is some external source to switch the
> > video on or off at the J IC.
> >
> > Thanks for any ideas. This thing is a dog to try and trace stuff, even
> > with the schematic
> >
> > Al G
> > Al's TV-Electronics
> > Pembroke Ont.
> > Canada
> >
> >
>
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