Hitachi HDR081, Service Manual

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SERVICE MANUAL
DISPLAY ERROR
1)Control the 3.3V , VFDDATA&DISPCLK signals on the PL 453.
2) Control the transistors Q410 ,Q404 ,Q403 around the PL610 connector.
3) Control the IC2 on the front board.
OSD ERROR
1) Control the sections that are written in the first part.
CRASH&SW LOCKED
1) There may be a SW error. Load the sw again.
2) Control the X100 crystal.
3)Push the standby button for a few seconds.
AV Switching ERROR
1) Control the IC200 supply voltages and SDA&SCL lines.
HARDDISK ERROR
1) Control the HDD 12V & 5V supply voltages from the HDD power
connektor.
2) Control the HDD , remove the HDD power cable and control if
there is a Sc or not on the HDD .The resistor value between 5V to
GND is nearly 4Kohm.Control the HDD data cable.
3) Use FTI and HDD format options on the SW menu to reset HDD.
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