Sharp FO-2150CM Manual técnico - Página 8
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UX-2200CMU/CMC
FO-2150CMU/CMC
[5] Overall Trouble Shooting Of Printer PWB
• BOTH CARRIAGE MOTOR AND FEED MOTOR
ARE NG.
FUSE "F100" AND "F101
OK
+24V AT Q1-C (Figure 1)
OK
CHECK IC5 AND IC8
OK
REPLACE PRINTER PWB
REPLACE F100 AND F101
OPEN
+24V AT Q1-E (Figure 1)
NG
OK
+5V AT Q101-B (Figure 2)
OK
0V AT Q101-C (Figure 2)
OK
REPLACE Q1 (Figure 1)
REPLACE IC5 OR IC8
NG
Q1
FRONT
VIEW
B
C
E
Figure 1
CHECK RESISTANCE
BETWEEN +24V AND GND.
NG
SHORT OR NOT
SHORT
REPLACE PRINTER PWB
CHECK IC5 AND IC8 AND
R145,R144
NG
OK
REPLACE PRINTER PWB
REPLACE Q101 (Figure 2)
NG
7
–
–
CHECK +24V PATTERN
NO
REPLACE IC5 OR IC8
NG
Q101
C
FRONT
VIEW
B
E
Figure 2