Panasonic KV-S3065CL SERIES Service Manual page 118

KV-S3065CLSERIES / KV-S3065CWSERIES
Error Code
Classified Code ST1
F52 42
(Skew (R) Sensor
adjustment error)
Possible Cause
ST2 ST3 ST4
00 00 00 1. Paper dust exists on or around a
Skew (R) Sensor.
2. The Skew (R) Sensor does not
work, properly.
1. Blow off the dirt on surface of the sensor
with the accessory blower. (See 7.2.)
2. Execute Key / Sensor and Sensor
Sensitive Level tests in Sec.9.3.6 to
check the sensor condition.
1. Execute Key / Sensor and Sensor
Sensitive Level tests in Sec.9.3.6 to
check the sensor condition.
2. Check whether the sensor alignment is
proper (whether the sensor direction faces
to its reflector).
3. Check the following connection and
soldering condition on each connector.
a. CN5030 (SKEW (R) Board) to
CN5029 (WAITING SENSOR Board)
b. CN5027 (WAITING SENSOR Board)
to CN5025 (RELAY (UPPER) Board)
c. CN5022 (RELAY (UPPER) Board) to
CN1014 (CONTROL Board)
4. Check the following signals.
a. SKEW_R signal (CN5030-2
CN5029-2
CN5025-2
CN1014-4
→ 0 V (when none exists on the
Skew (R) Sensor)
b. Check the reference signals for the
SKEW_R signal on the CONTROL
Board.
→ IC1015-2
(After initializing)
→ IC1017-5
c. Check comparator output signal.
→ IC1017-2
(When no paper exists)
5. Replace faulty parts or boards.
118
Check Point Remarks
nd
pin,
nd nd
pin, CN5027-2 pin,
nd th
pin, CN5022-4 pin,
th
pin)
nd
pin: 1.5 V or less
th
pin: Approx. 1.5 V
nd
pin: 3.3 V