Ricoh D025 Service Manual page 22

When installing the new BICU .....................................................4-144
4.14.7 PSU ....................................................................................4-145
PSU bracket ................................................................................4-145
PSU board...................................................................................4-145
4.14.8 ITB POWER SUPPLY BOARD ..........................................4-146
4.14.9 HIGH VOLTAGE SUPPLY BOARD....................................4-146
4.14.10
4.14.11
When installing the new controller board.....................................4-148
4.14.12
4.14.13
When installing a new HDD unit ..................................................4-150
Disposal of HDD Units.................................................................4-150
Reinstallation...............................................................................4-151
4.14.14
NVRAM on the BICU...................................................................4-152
NVRAM on the Controller ............................................................4-152
4.15 USING DIP SWITCHES ..............................................................4-154
4.15.1 CONTROLLER BOARD .....................................................4-154
4.15.2 BICU BOARD .....................................................................4-154
SYSTEM MAINTENANCE REFERENCE
5. SYSTEM MAINTENANCE REFERENCE ................................5-1
5.1 SERVICE PROGRAM MODE ...............................................................5-1
5.1.1 SP TABLES .................................................................................5-1
5.1.2 ENABLING AND DISABLING SERVICE PROGRAM MODE ......5-1
Entering SP Mode ...........................................................................5-1
Exiting SP Mode..............................................................................5-1
5.1.3 TYPES OF SP MODES ...............................................................5-2
SP Mode Button Summary ..............................................................5-2
Switching Between SP Mode and Copy Mode for Test Printing ......5-3
Selecting the Program Number .......................................................5-3
Exiting Service Mode.......................................................................5-4
Service Mode Lock/Unlock ..............................................................5-4
D023/D025
HIGH VOLTAGE SUPPLY BOARD BRACKET ..............4-147
CONTROLLER BOARD..................................................4-148
HDD FAN........................................................................4-149
HDD ................................................................................4-150
NVRAM REPLACEMENT PROCEDURE .......................4-152
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