Sony PDW-U4 Service Manual page 60

Professional disc drive unit
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Main
Sub
ERROR/ALARM indicator
Code
Code
Lighting
Switching off
interval
condition
95
51D
0.25 seconds
Power
51E
1 second
Power
Description
Error remedy method
The optical block
1. Eject the cartridge.
assembly detected an
2. Turn off the unit.
abnormal temperature.
3. Check whether there is any obstacle that blocks air flow from the fan
exhaust outlet and to the air vents (front/rear).
4. Check the ambient temperature of this unit.
5. Wait for about 10 minutes, and then turn on the unit again.
6. Startup the maintenance menu and perform [CHECK] > [DEVICE] >
[FAN MOTOR]
When the check result is "NG", check the installation of the relevant fan
and the cable connection.
• Improper connection (half insertion or oblique insertion)
• Damage to connectors
• Significant scratches or disconnection of flexible cables
• Damage or dust/dirt at connecting parts (Unplug flexible cables.)
The temperature of the
1. Eject the cartridge.
optical block assembly is
2. Check whether there is any obstacle that blocks air flow from the fan
rising.
exhaust outlet and to the air vents (front/rear).
3. Check the ambient temperature of this unit.
4. Startup the maintenance menu and perform [CHECK] > [DEVICE] >
[FAN MOTOR]
When the check result is "NG", check the installation of the relevant fan
and the cable connection.
• Improper connection (half insertion or oblique insertion)
• Damage to connectors
• Significant scratches or disconnection of flexible cables
• Damage or dust/dirt at connecting parts (Unplug flexible cables.)
Refer to section
"4-8. DC Fan (52 Square)
Assembly"
"4-9. DC Fan (40 Square)
Assembly"
"6-4-2. DEVICE, FAN
MOTOR"
"4-8. DC Fan (52 Square)
Assembly"
"4-9. DC Fan (40 Square)
Assembly"
"6-4-2. DEVICE, FAN
MOTOR"
Continued
57

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