Sharp AR-M155X Service Manual page 15

6. PWB unit
(With optional SPF/RSPF and FAX installed)
1
9
No. Name
1 Exposure lamp inverter PWB
2 Main PWB (MCU)
3 Operation PWB
4 Power PWB
5 CCD sensor PWB
6 LSU motor PWB
7 TCS PWB
8 LSU PWB
9 FAX-operation PWB
10 Modem PWB
5
4
3
Exposure lamp (CCFL) control
Copier control
Operation input/display
AC power input, DC voltage control, High voltage control
For image scanning
For polygon motor drive (In the LSU)
For toner sensor control
For laser control (In the LSU)
FAX operation input (AR-FX9 option)
FAX control (AR-FX9 option)
AR-M150/M155/M155X EXTERNAL VIEWS AND INTERNAL STRUCTURES 4 - 5
2
7
Function
10
8
6