Hitachi HDR081 Service Manual page 29

SERVICE MANUAL
DISPLAY ERROR
OSD ERROR
CRASH&SW LOCKED
AV Switching ERROR
HARDDISK 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.
1) Control the sections that are written in the first part.
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.
1) Control the IC200 supply voltages and SDA&SCL lines.
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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