Sharp FO-2150CM - Manual (Page 9)

UX-2200CMU/CMC
FO-2150CMU/CMC
CHECK WAVEFORMS IC2 ( 3,5,7,9 pin) (Figure 3)
REPLACE PRINTER PWB
FUSE “F101” Check the laser diode driver.
OPEN
OK
OK
OK
CHECK WAVEFORMS IC2 ( 2,4,6,8 pin) (Figure 4)
NG
CHECK IC5
REPLACE PRINTER PWB
REPLACE IC5
• FEED MOTOR IS NG (CARRIAGE MOTOR IS
GOOD)
REPLACE F101
NG
OK
OK
CHECK IC2
REPLACE PRINTER PWB
REPLACE IC2
CHECK WAVEFORMS IC1 ( 18,20,21,22,23,25 pin) (Figure 6)
CHECK WAVEFORMS IC1 ( 6-9 pin) (Figure 5)
IS THE FLEXIBLE CABLES INSERTED CORRECTLY? Check the laser diode driver.
NG
OK
OK
OK
FUSE “F100”
NG
REPLACE IC5
• CARRIAGE MOTOR IS NG (FEED MOTOR IS OK).
PLS INSERT THE CABLES
CORRECTLY.
OPEN
OK
CHECK IC1
REPLACE PRINTER PWB
REPLACE IC1
REPLACE PRINTER PWB
OK
CHECK IC5
OK
REPLACE PRINTER PWB
NG
NG
+40~50V
INCLUDE OVERSHOOT
+24V
GND
IC2-2,4,6,8PIN
1.5V
GND
+5V
GND
+24V
GND
NG
Figure 3 Figure 4
NG
Figure 5 Figure 6
NG
– 8 –
REPLACE F100