Read Panasonic KV-S7075C (serv.man2) Service Manual online
114
6. Conveyor Motor circuit does
not work properly.
not work properly.
1. Check the following connection and
soldering condition on each connector:
a. CN4005 (DRIVE Board) to CN2004
(CENTER Board)
2. Check the soldering condition of
IC4006 and its surrounding parts.
3. Check the following signals on the
DRIVE Board:
a. IC4006-12th pin (CLK)
See Fig. 10.2.4.
b. IC4006-19th pin (VREF): 1.8V
or less.
c. IC4006-15th pin (ENABLE): 3.3 V
(when executing Feed Motor test)
4. Check the soldering condition of
IC1032 on the CONTROL Board to
repair it.
5. Replace faulty parts or boards.
soldering condition on each connector:
a. CN4005 (DRIVE Board) to CN2004
(CENTER Board)
2. Check the soldering condition of
IC4006 and its surrounding parts.
3. Check the following signals on the
DRIVE Board:
a. IC4006-12th pin (CLK)
See Fig. 10.2.4.
b. IC4006-19th pin (VREF): 1.8V
or less.
c. IC4006-15th pin (ENABLE): 3.3 V
(when executing Feed Motor test)
4. Check the soldering condition of
IC1032 on the CONTROL Board to
repair it.
5. Replace faulty parts or boards.
Error Code
Possible Cause
Check Point
Remarks
Classification
Code
ST1 ST2 ST3 ST4
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