DOWNLOAD Panasonic KV-S7097 / KV-S7077 Service Manual ↓ Size: 13.74 MB | Pages: 127 in PDF or view online for FREE

109

4. Rollers have reached their life
    expectancy.

1. Replace the Paper Feed, Separation,
    and DFP Rollers after checking each
    roller configuration and Scanner Counter
    of Service Utility software.
2. Clear counter for replacing roller to zero with 
    the above service utility.

5. Double Feed Sensor (TX) does
    not work, properly.

1. Execute “Double Feed” adjust in the 

Sec. 9.3.8. to adjust “Send Level” for Dou-
ble Feed

    Detectors.
2. Execute “Double Feed” test in the Sec. 

9.3.7. to check the detector condition.

3. Check whether the Double Feed Sensor is
    aligned property.
4. Check the following connection and 
    soldering condition on each connector.

a. CN28 (DOUBLE FEED SENSOR (TX) 

Board) to CN15 (SENSOR RELAY Board)

b. CN16 (SENSOR RELAY Board) to CN514 

(MAIN Board)

5. Check the following parts' soldering condition
     to repair it.

a. MAIN Board  

IC503-43rd pin

    IC524-L11, M11 and N11 pins
b. SENSOR RELAY Board
    Q6 / Q7, Q11 / Q12, Q13 / Q14 and 

surrounding circuit

6. Check the following signals of MAIN Board

a. JS_CLK (IC524-M11 pin) 

 300 kHz

7. Check the following signals of SENSOR 

RELAY Board. 
a. DOUBLE FEED SENSOR (TX) Board 

USS+ (CN15-1st pin) and 
USS-  (CN15-2nd pin)
 Sine wave of about 300kHz

8. Replace faulty parts or boards. 

6. Double Feed Sensor (RX) does
    not work, properly.

1. Execute “Double Feed” test in the 

Sec.9.3.7. 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. CN29 (DOUBLE FEED SENSOR (RX) 

Board) to CN18 (OUTER CONVEYOR 
RELAY Board)

4. Check the following parts' soldering
    condition to repair it.

a. MAIN Board

        IC5 - 98th pin

b. DOUBLE FEED SENSOR (RX) Board 

IC5, IC6, Q17 and surrounding circuit.

5. Replace faulty parts or boards. 

U30 (Cover open)

20

00

00

00 1. ADF or EXIT Door is not closed 

enough.

Shut the door properly.

2. Door SW (Micro switch: Exit 

Door or ADF Door Switch) does 
not work correctly.

1. Execute “Key/Sensor” in the Sec. 9.3.7. to 

check the door switch (Exit, ADF) ON/OFF 
condition.

2. Check the  condition between the Door 

Switch and CN35/CN36 on POWER RELAY 
Board.

3. Check the Door Switch mechanical 

condition.

4. Replace a faulty cable.
5. Replace the Door Switch.

110

3. Monitor circuit to check the door 

ON / OFF condition is broken.

1. Execute “Key/Sensor” in Sec. 9.3.7. to 

check the door switch ON/OFF condition.

2. Check DOOR signal (CN504-1st) 

+3.3 V (when the door is open)
   0 V (when the door is closed)

3. Replace a faulty cable.
4. Replace POWER RELAY Board.
5. Replace DRIVE Board or MAIN Board.

F17 (SD-RAM error)

87

xx

00

00 Access error to SDRAM (IC527 to

IC530, IC533 to IC536) on the 
MAIN Board

1. Check the soldering condition of the parts
    surrounding the ASIC (IC562 and IC531)
2. Check the soldering condition of the SDRAM
    (IC527 to IC530, IC533 to IC536). 
3. Replace faulty parts or MAIN Board.

F30 (Fan error)

94

00

00

00 1. Electrical circuit does not work 

properly.

1. Check the connection between FAN and 

CN403 (DRIVE Board).

2. Check following signal on the MAIN Board. 

CN403 1st :  +24V

3. Remove the FAN or MAIN Board.

2. Mechanical problem prevents 

FAN from rotating.

1. Remove obstacles that prevent the FAN from

rotating.

2. Remove the FAN.

F31 (Analog IC error)

95

xx

00

00 Access error to Analogue IC

1. Check the following connection and 
    soldering condition to repair it.
   a. IC514 to IC517, IC518 to IC521 (MAIN 

Board) and its surround circuit.

       (ST2:0 IC514 to IC517/ ST2:1 IC518 to 

IC521)

2. Replace faulty parts or boards.

F33 (USB IC error)

97

00

00

00 Access error to USB Controller

1. Check the soldering condition of the USB 
    Controller (IC539) and its surrounding
    circuit on the MAIN Board to repair it.
2. Check the soldering condition of CPU 
    (IC503) on the MAIN Board.
3. Replace faulty parts or MAIN Board.

F34 (EEPROM error)

98

00

00

00 Access error to EEPROM

1. Check the soldering condition of the     
    EEPROM (IC501) and its surrounding 
    circuit on the MAIN Board.
2. Check the soldering condition of the CPU 
    (IC503-80,45, and 110th pins) and their 
    surrounding circuit on the MAIN Board.
3. Replace faulty parts or MAIN Board.

F36 (Front ASIC error)

9A

xx

00

00 Access error to SDRAM (IC527 to 

IC530) 
 

1. Check the soldering condition of the parts 
    surrounding the ASIC (IC561).
2. Check the soldering condition of the SDRAM 
    (IC527 to IC530).
3. Replace faulty parts or MAIN Board.

F38 (Back Gate Array 
error)

9C

xx

00

00 Access error to SDRAM (IC533 to 

IC536)

1. Check the soldering condition of the parts 
    surrounding the ASIC (IC531).
2. Check the soldering condition of the 
    SDRAM(IC533 to IC536).
3. Replace faulty parts or MAIN Board.

F40 (Hopper error) 

30

00

00

00 1. Paper Feed Motor does not work 

properly.

1. Check the motor mechanism condition, by 

carrying out “Hopper Drive” test in 
Sec. 9.3.6.

2. Check the following connection:Paper Feed 

Motor to CN38 (POWER RELAY Board)

3. Replace faulty cables.
4. Replace Paper Feed Motor.

111

2. Feed Motor control circuit does 

not work properly.

1. Check the following connections and solder-

ing condition on each connector:
a. CN512 (MAIN Board) to CN402 (DRIVE 

Board)

b. CN404 (DRIVE Board) to CN34 (POWER 

RELAY Board)

2. Check the soldering condition of IC405 and 

its surrounding parts.

3. Check the following signals on the DRIVE 

Board:
a. IC405-1,3,4 and 5th pins 

(phase signals): See Fig. 10.2.1.

b. IC405-19th pin (VREF): 2.5 V or less.

4. Replace faulty parts or boards.

3. Hopper mechanical problem 

(Rotation from the Paper Feed 
Motor Gear is not transmitted to 
the Hopper properly.)

1. Check the Hopper mechanism condition by 

carrying out “Hopper Drive” test. 
(See 9.3.6.) 
Note:

2. Reassemble improper lay-out or replace 

faulty parts.

4. Hopper Home Detector does not 

work properly.

1. Execute “Key / Sensor”test in the Sec. 

9.3.6 to check the detector condition. 

2. Check whether the Interrupter plate inter-

rupts the detector correctly

3. Check the following connection and solder-

ing condition on each connector:
CN27 (HOPPER HOME DETECTOR 
Board) to CN13(SESOR RELAY Board)

4. Check HOPPER_HOME signal:

CN27-3rd pin (5 V when Interrupter plate 
interrupts IC9 on the HOPPER HOME 
Board.

5. Check the soldering condition of IC524 on 

the MAIN Board and repair it.

6. Replace faulty parts and boards.

F41 (Carriage error) 

31

00

00

00 1. Carriage mechanism does not 

work properly.

1. Execute “Feed” test (Flatbed mode) in 

Sec.9.3.7 to check the carriage mechanism.

2. Check the carriage shaft is not distorted.
3. Check the carriage belt tension and alloca-

tion. And adjust the tension, as required. 
(See 8.2.15.)

4. Check whether rotation from the carriage 

motor's gear is transmitted to the carriage 
belt properly

2. Carriage Motor does not work 

properly.

1. Check the carriage mechanism condition, by 

carrying out “Feed” test. (See 9.3.7.)

2. Check the following connection and solder-

ing condition on each connector.
Carriage Motor to CN405 (DRIVE Board)

3. Replace faulty cables.
4. Replace the Carriage Motor.

3. Carriage Motor control circuit 

does not work properly.

1. Check the following connection and solder-

ing condition on each connector.

a. CN402 (DRIVE Board) to CN512 (MAIN 

Board).

2. Check the soldering condition of the IC403 

and its surrounding circuit on the DRIVE 
Board.

3. Check the following signals on the DRIVE 

Board.

a. IC403-12th pin (CLK): 500 to 2kHz (when 

executing “Feed” test (Flatbed mode))

b. IC403-19th pin (VREF): 2.3 V or less
c. IC403-15th pin (ENABLE): 5 V(when exe-

cuting “Feed”  test (Flatbed mode))

4. Check the soldering condition of IC524 and 

its surrounding circuit on the MAIN Board to 
repair it.

5. Replace faulty parts or boards.

112

4. Carriage Home Detector does 

not work correctly.

1. Check the alignment of the Carriage Home 

Detector and its actuator is proper. 

2. Execute “Key / Sensor”  test in Sec.9.3.7 to 

check the sensor condition.

3. Check the following connection and solder-

ing condition of each connector.
a. CN10 (CARRIAGE HOME DETECTOR 

Board) to CN513 (MAIN Board)

4. Check the soldering condition of IC3 and its 

surrounding circuit on the CARRIAGE 
HOME DETECTOR Board to repair it.

5. Check the following signals.

CRHOME signal (CN10-1st pin on the CAR-
RIAGE HOME DETECTOR Board, IC524-
A11 pin on the MAIN Board): Approx. 3 V 
(when the actuator interrupts the detector)

6. Replace faulty parts or boards.

F60 (Front-side gain
adjustment error)

50

00

00

00 1. Scanning Glass (F) is dirty.

Clean the glass surface in the Sec. 7.2.4.

2. CIS Unit (F) does not work prop-

erly.

1. Check if the White Standard Sheet is not 

dirty and not peeled, then is stuck properly.

2. Execute Focus test in the Sec.9.3.7. to check 

the peak level.

3. Check that LED (F) lights during Focus test.
4. Execute Shading adjust in the Sec.9.3.8. to 

adjust the shading correction level.

5. Check the following connections and solder-

ing condition on each connector.

a. CIS Unit (F) to CN100 (CIS (F) RELAY 

Board)

b. CN103, CN104 (CIS (F) RELAY Board) to 

CN502, CN503  (MAIN)

c. CIS Unit (F) to CN101, CN102 (CIS (F) 

RELAY Board)

6. Check the power supply for LED.

 CN502-7, 8th pin (MAIN Board) : 12 V.

7. Replace faulty parts or boards.

3. Pixel data from CIS Unit (F) or 

image processing circuit has 
some problems.

1. Check the following connections and solder-

ing condition on each connector.

a. CIS Unit (F) to CN100 (CIS (F) RELAY 

Board)

b. CN103, CN104 (CIS (F) RELAY Board) to 

CN502, CN503  (MAIN Board)

2. Check the following power supply to MAIN 

Board.
 CN502-9, 10 pin (MAIN Board) : 5.0 V

3. Check the soldering condition of the 

CN4,IC16, and their surrounding circuit on 
the MAIN Board.

4. Replace faulty parts or boards.

F61 (Front-side
black level error)

51

00

00

00 1. Pixel data from Optical Unit

    Front or image processing
    circuit has some problems.

1.Check if the White Standard Sheet is not dirty
   and not peeled, then is stuck properly.
2.Refer to the above 3rd item on the F60.

F62 (Back-side gain
adjustment error)

52

00

00

00 1. Scanning Glass (B) is dirty.

Clean the glass surface in the Sec. 4.2.4.