TROUBLE SHOOTING
1. POWER
1.1. The unit does not power on
TO "
1.2. Power Connection Wiring Abnormalities
"
When the power supply is connected to an AC power inlet, does
the on/standby indicator on the top of the power switch blink red
either immediately or after a certain amount of time has elapsed?
Is the device operating without the OLED illuminating?
If pressing the "
OPEN/CLOSE
" button operates the tray, there may be a malfunction in the OLED or
display board.
Is the MAIN FUSE[
F8100
] blown out?
Can the device be started up and can "
Protection History
" from
"
1-3. Protection History Display Mode
" be checked?
Check the protection type.
[DC PROTECTION1]
A power supply short circuit was detected in power PCB.
Check the PCBs.
[DC PROTECTION2]
A power supply short circuit was detected in audio PCB.
Check the PCBs.
If the fuse [
F8100
] breaks again after it has been replaced, there may be a short or overload in the
power supply.
1.3. Power Supply Voltage Abnormalities
TO "
1.2. Power Connection Wiring Abnormalities
".
YES
YES
NO
NO
NO
NO
YES
YES
1.2. Power Connection Wiring Abnormalities
TO "
1.3. Power Supply Voltage Abnormalities
"
Check the connection.
Has a contact failure occurred or is a connector missing?
POWER PCB to DIGITAL PCB [
N1004, N1012, N3504
]
Check if the connectors are connected as indicated in the wiring diagram and adjust the connections if
necessary.
If this does not re-establish contact in the wiring, replace the Wire Assy unit or the circuit board which
the wires are mounted on.
NO
YES
Before Servicing
This Unit
Electrical
Mechanical
Repair Information
Updating
48