Circuit Board; Controller And Base Engine Control Unit - Ricoh G108 Service Manual

CIRCUIT BOARD

3.10 CIRCUIT BOARD
3.10.1 CONTROLLER AND BASE ENGINE CONTROL UNIT PCB'S
1. Start the SP mode.
2. Execute SP5-990-001 (SP Print
Mode, All [Data List]).
3. Quit the SP mode.
4. Set the main switch off.
5. Disconnect the printer.
6. Controller [A] (
7. Top cover (
8. Left cover (
9. BCU cover [B] (
10. BCU [C] (Flat cable x 3,
All 's,
Setting
Perform the following when you replace the controller:
1. Remove the NVRAM from the used controller. Then install it on the new
controller.
2. Execute SP5-990-001.
3. Check that the settings are not changed.
Do these when you replace the BCU:
1. Start the SP mode.
2. Put in the same settings as the SMC Report you have printed out before
replacement.
⇒
NVRAM Replacement Procedure
CAUTION: Contact your regional personnel before replacing the NVRAM. The
destination code and the controller serial number can only be installed
by the regional personnel.
1. Print out the SMC Report from SP5990 –001 (when possible).
2. Turn OFF the main switch and unplug the power cord.
3. Remove the old NVRAM on the controller board
4. Install the new Zero-Counter NVRAM.
5. Plug in the power cord, power ON the main switch, and have the regional
personnel add in the destination code and controller serial number.
NOTE: The default destination code is Japan.
G108
x 2)
3.1.1)
3.1.3)
x 3)
x 4)
[B]
[C]
3-20
Rev. 12/2004
[A]
G108R906.WMF
SM