C0650: Scanner Motor's Failure To Turn, Scanner Home Position Sensor Malfunction - Minolta Di151 Service Manual

FrameMaker Ver.5.5E(PC) Di151 TROUBLESHOOTING
00.03.10
(5) C0650: Scanner Motor's Failure to Turn, Scanner Home Position Sensor Mal-
function
Scanner Motor M6
Scanner Home Position Sensor PS5
JP9-1(A)
JP9-2(A/)
M6
JP9-3(B)
JP9-4(B/)
JP14-1(PS5 ON)
JP14-2(GND)
JP14-3(GND)
PS5
JP14-4(Power)
C0650
Step
1 Scanner movement after the malfunction has
been reset
2 Scanner motion as it is moved manually
3 Proper JP9 connector connection of Control
Board
4 Scanner Home Position Sensor operation: the
voltage across JP14-1 on the Control Board
and GND is DC0 V (sensor unblocked) and
DC3 V (sensor blocked) after the malfunction
has been reset.
Relevant Electrical Parts
Control Board PWB-I
JP7
1
2
3
4
5
6
7
8
9
JP5
12 PJ1A-1
11 PJ1A-2
10 PJ1A-3
9 PJ1A-4
8 PJ1A-5
7 PJ1A-6
6 PJ1A-7
5 PJ1A-8
PWB-I
4
PJ1A-9
3
PJ1A-10
2
PJ1A-11
1
PJ1A-12
JP6
2
PJ18A-1(GND)
1 PJ18A-2(VIDEO)
Check
T-14
PJ31-1(DC24V)
PJ31-3(DC15V)
PJ31-5(DC-9V)
PJ31-7(GND)
PJ32-2(DC5V)
PJ32-3(DC5V)
PJ32-4(GND)
PJ32-6(DC5V REM/SLP)
PJ32-7(DC24V REM/SLP)
PU1
PWB-A
4007C10TAC
Result Action
YES To step 4
NO Correct drive coupling.
Install belt.
YES Change Scanner Motor.
Change Control Board.
NO Correct connections.
YES Change Control Board.
NO Change sensor.