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TROUBLE DIAGNOSIS
YES
AC PWR "OFF"
Unplug Connectors connecting SUB
and POWER PCB(CN801)
Unplug Connectors connecting High
Voltage and POWER PCB(CN805)
Unplug Connectors connecting SUB
and MAIN PCB(JP117)
AC PWR "ON" =>
PWR "ON" with Remote Controller
"SHUT DOWN"
occur?
YES
Replace MAIN
PCB
Fig. 6 Trouble Diagnosis Flow when LOW VOLTAGE "SHUT DOWN" occurs
Turn AC PWR OFF
Set VOLTAGE SWITCH of POWER
PCB to LOW (Picture 6-2)
Unplug Connectors connecting High
Voltage and POWER PCB(CN806)
AC PWR "ON" =>
PWR "ON" with Remote Controller
"SHUT DOWN"
occur?
NO
Replace SUB
PCB
-51-
NO
AC PWR "OFF" =>
Unplug Connectors connecting High
Voltage and DIGITAL PCB(CN601)
Unplug Connectors connecting High
Voltage and DATA PCB(CN7)
AC PWR "ON" =>
PWR "ON" with Remote Controller
"SHUT DOWN"
occur?
YES
Replace High
Voltage Or
SCAN PCB
NO
Replace DIGITAL
Or DATA PCB
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