2 Electrical Section
10
2
2-2 MAIN BOARD ASS'Y [7435214000-00]
DESCRIPTION
Electric Maintenance Part
Indicates revision of the circuit board.
DIP SW
CPU used on the MAIN BOARD is different depending on the revision number of the board.
It is necessary to select the suitable program for each CPU.
Selection can be done by the DIP SW bit#4 on the MAIN BOARD. (Refer to the table below.)
I C . N o .
Parts No.
Description
Function
IC 1
15199905
DS14C238WM
RS232C
IC 2
15189105
MTD2005
Solenoid Motor Driver
IC 3
15189105
MTD2005
Carriage Motor Driver
IC 4
15189105
MTD2005
Ribbon Winding Driver
IC 14
15189105
MTD2005
Grit Motor Driver
IC 15
15189105
MTD2005
Head UP/DOWN Driver
IC 19
15199111
SI-3050J
+5V Regulator IC
IC 20
15199112
LM2576HVT
+HV Regulator IC
IC 21
15159102
SN75LBC775
RS-422
IC 24
15169146
SN74ACT1284
Centronics
IC 27
15169146
SN74ACT1284
Centronics
Q 11
15139105
2SK973
FANPWM
Q 13
15129444
2SB1551
Motor Power Supply
N o .
FUNCTION
O N
O F F
1
Reserved
ALWAYS OFF
2
Reserved
ALWAYS OFF
3
Reserved
ALWAYS OFF
4
CPU SELECTION
MAIN BOARD REVISION
2.0 and above
MAIN BOARD REVISION
1.9 and below.
Содержание Color Camm Pro PC-60
Страница 4: ... MEMO ...
Страница 6: ...2 1 Structure Spare Parts 1 1 2 FRAME 1 ...
Страница 8: ...4 1 Structure Spare Parts 1 1 3 FRAME 2 ...
Страница 88: ...84 4 Adjustment 4 MEMO ...