Sony PDW-U4 Service Manual page 62

Professional disc drive unit
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Main
Sub
ERROR/ALARM indicator
Code
Code
Lighting
Switching off
interval
condition
95
907
0.25 seconds
Power
90A
1 second
Power
930
0.25 seconds
Power
940
0.25 seconds
Power
942
1 second
Power
960
0.25 seconds
Power
961
0.25 seconds
Power
Description
Error remedy method
Head data cannot be read
1. After the optical block assembly or the BD-48 board is replaced, perform
from the EEPROM in
"Action after replacement or repair".
optical block assembly
2. Check the optical block assembly installation status.
0Ach.
A mismatch of OP ID was
detected in the hours
meter data on the 0Ach
side and the EEPROM
data of the optical block
assembly 0Ach.
There is no response from
the optical block
assembly 0Ach.
The IL adjustment of the
optical block assembly
0Ach has not been
completed.
Disc Drive LSI 0a
1. After the SE-1004A board or the BD-48 board is replaced, perform
(IC100: BD-48 board)
"Action after replacement or repair".
cannot write data to the
2. Check the SE-1004A board installation status.
FLASH-ROM (IC101:
BD-48 board) or the SE
EEPROM (IC3:
SE-1004A board).
A system error has been
1. Eject the cartridge.
detected in the disc drive
2. Acquire the drive/driver log.
of LSI 0a (IC100: BD-48
3. Turn off the unit.
board).
4. Turn on the unit and insert the same cartridge.
• In the case no error occurs:
A servo firmware
The problem is fixed. Use the unit as it is.
communication error was
• In the case the error occurs:
detected in Disc Drive
The drive may be defective.
LSI 0a (IC100: BD-48
Send the acquired drive/driver log to your local Sony Sales
board).
Office/Service Center.
Refer to section
"4-5. Optical Block
Assembly"
"4-11-1. BD-48 Board"
"4-11-7. SE-1004A Board"
"4-11-1. BD-48 Board"
Continued
59

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