[TechAssist] Re: Hitachi 32cx39 chass M9LXU No video FIX
- From: Al Gutz <alg@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 11 Nov 2004 23:35:16 -0500
Sorry about the spelling. I know what I want to type but sometimes my
fingers do their own thing.
Al G
Gemini Computer & TV wrote:
> 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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