Disassembly
Service Manual 6-23
6.4.7b Main Controller Board (PL 9.1.10)
1. Perform steps 1 and 2 from procedure 6.4.7a.
Warning
Move the NVRAM Chip from the old board TO the new board. Failure to perform this step will result in
the loss of important customer information, like page count and consumable life usage information.
2. Disconnect all harness connected to the main board.
3. Remove 5 screws (3*6 machine screw, gold) and then remove the main board.
NVRam Chip
Screw
Screw
Screw
Screw
Screw
Main
Board
USB
NPC
Parallel Port
CN26
CN27
CN28
CN29
CN30
CN30
CN32
CN33
T2 HOME
BLDC1
FSR_ROLL
FUSER_FAN
SMPS
MP EMPT
MP SOL
FEED
CN25
PICK_UP
CN23
CLT_FEED
CN21
EMPT
CN9
CN1
CN16
SCF
CN12
LSU
CN6
OPC KEY
CN5
DEVE_DRIVERDEVE_DRIVER
CN14
LSU SW
CN8
ERASER
CN35
LSU_FAN
CN24
DUPLEX
CN19
EXIT
CN4
PANEL
CN7
HVPS
CN10
ITB
CN17
WASTE TONER
CN15
TH3
CN11
PTL
CN13
TH4
NIC
For Test