Sharp UX-2200CM, FO-2150CM technical manual Overall Trouble Shooting Of Printer PWB

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

OPEN

NG

NG

REPLACE F100 AND F101

+24V AT Q1-E (Figure 1)

OK

+5V AT Q101-B (Figure 2)

OK

0V AT Q101-C (Figure 2)

OK

REPLACE Q1 (Figure 1)

REPLACE IC5 OR IC8

Q1

NG

NG

NG

CHECK RESISTANCE
BETWEEN +24V AND GND.		NO
SHORT OR NOT
	SHORT
REPLACE PRINTER PWB
CHECK IC5 AND IC8 AND
R145,R144
		NG
	OK
REPLACE PRINTER PWB

REPLACE Q101 (Figure 2)

Q101

C

CHECK +24V PATTERN

REPLACE IC5 OR IC8

FRONT

VIEW

B C E

FRONT

VIEW

BE

Figure 1 Figure 2

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