[TechAssist] Hitachi CT7881 G9LXU Dead
- From: "Peter oliver" <oliver_peter1@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 23 Aug 2003 21:34:26 +0000
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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