U30 - Philips KV-S5055C Service Manual

Error Code
Classified Code ST1 ST2 ST3 ST4
U25 (Detect document 1E
with staples
(Double-feed detec-
tion)
U26 (Detect document 1F
with staples (Bent-
paper detection)
U30 (ADF Door or 20
Imprinter Door is
open.)
Possible Cause
6. Double Feed Detector (R) does
not work, properly.
00 00 00 1. Refer to each item on classified code U23.
xx 00 00 1. Bent Paper was detected.
2. Some of Bent Paper Sensors do
not work, properly.
00 00 00 1. ADF Door or Imprinter Door is
not closed enough.
Check Point
1. Execute Double Feed test in Sec.9.3.6 to
check the detector condition.
2. Check whether the Double Feed
Detector (R) is aligned property.
3. Check the following connection and
soldering condition on each connector.
a. CN2010 (USR SENSOR Board) to
CN2005 (USS RELAY Board)
b. CN2001 (USS RELAY Board)
to CN1007 (CONTROL Board)
4. Check the following parts' soldering
condition to repair it.
a. CONTROL Board
IC0006 - 98th pin
b. USS RELAY board
All parts.
5. Check the following signals on the USS
RELAY Board.
a. DC 12 V signal (CN2001-7th pin)
b. DC 5 V signal (CN2001-6th pin)
6. Replace faulty parts or boards.
1. Check whether the scanned documents are
fixed by staples or others.
2. Set the documents on the Hopper orderly,
and then scan them again.
1. Execute Key/Sensor test in Sec. 9.3.6 to
check Bent Paper Sensors' condition while
covering the sensors with white paper.
2. Check whether the BENT PAPER SENSOR
S (L) Board, BENT PAPER SENSOR R (L)
Board, BENT PAPER SENSOR S (R) Board
and BENT PAPER SENSOR R (R) Board
are aligned properly.
3. Check the following connection and
soldering condition on each connector,
a. CN2007 (USS RELAY Board) to CN3005
(BENT RELAY Board)
b. CN3006 (BENT RELAY Board) to CN3010
(BENT PAPER SENSOR R (L) Board)
c. CN3011 (BENT PAPER SENSOR R (L)
Board) to CN3014 (BENT PAPER
SENSOR S (L) Board)
d. CN3007(BENT RELAY Board) to CN3012
(BENT PAPER SENSOR R(R) Board)
e. CN3013(BENT PAPER SENSOR R(R)
Board) to CN3015(BENT PAPER
SENSOR S (R) Board)
4. Check the following parts' soldering
condition to repair it.
a. CONTROL Board
IC0015 (21, 23, 24, and 27th pins)
b. USS RELAY Board
IC2008 (3, 15, 18, 20, 22, 24, and
27th pins)
IC2001 to IC2003, IC2005, IC2006, Q2009
to Q2014, and their surrounding circuit.
5. Check the following signals
a. DC14 V signal (CN2006-3rd pin and
CN2007-1st pin)
b. BPS_D_L (CN3014-3rd pin) and
BPS_D_R (CN3015-3rd pin)
→ See Fig. 11.
6. Replace faulty parts or boards.
Shut the door properly.
113
Remarks