[TechAssist] Fixed: Hitachi CT7881 G9LXU Dead
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 30 Aug 2003 21:38:52 +0000
The micro was the cultprit got a new one in and that fixed it IC0100
(tritronics still had stock).
Peter Oliver
Tucson Radio TV
From: "Gemini Computer & TV" <geminitv@xxxxxxxxxxxxxxxx>
To: "Alvie Rodgers C. E. T." <rodgers@xxxxxxxxx>,<oliver_peter1@xxxxxxxxxxx>
Subject: Fw: Hitachi CT7881 G9LXU Dead
Date: Mon, 25 Aug 2003 07:08:07 -0400
Peter,
I have forwarded this to Alvie Rodgers from Hitachi for his input.
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: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, August 23, 2003 5:34 PM
Subject: [TechAssist] Hitachi CT7881 G9LXU Dead
> Hitachi
> CT7881
> Chassis G9LXU
> MFD 1990 27" TV
>
>
> Set is dead. Have about come to the conclsuion it is
> the micro IC0101. Have the 5v to the front pannel. Will not turn on.
Clock
> pulse on pin 26 is ?? rather attenulated there is 5v on that pin and the
> front switch sends 4.8v to it thru a diode but is not doing anything at
the
> turn on pin of the Micro. If I jumper the main relay I get high voltage
and
> normal deflection blank raster since the front end is not working...
> Customer claims it just stoped working but this is also summer
thunderstorm
> season in southern Arizona so I can't be 100%. Any ideas other than the
> Micro?. have the manual from the Hitachi web site but is very hard to
read-
> looks like a 1 bit conversion from microfice.
>
>
> Peter Oliver
> Tucson Radio TV
>
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