KV-S7075C (serv.man2) - Panasonic Other Service Manuals Service Manual (repair manual). Page 119

119

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 Sec. 9.3.6
   to check the door switch (Exit, ADF)
   ON/OFF condition.
2. Check the condition between the Door
    Switch and CN3027 on POWER
     RELAY Board.
3. Check the Door Switch mechanical
    condition.
4. Replace a faulty cable.
5. Replace the Door Switch.

3. Monitor circuit to check the
    door ON / OFF condition is
    broken.

1. Execute “Key / Sensor” in Sec. 9.3.6
    to check the door switch ON/OFF
    condition.
2. Check 24VSLP signal. (CN3022-1st
    pin on POWER RELAY Board): +24 V
    (when door is closed)
3. Check DOOR signal (CN4005-31st)
      +5 V (when the door is open)
       0 V (when the door is closed)
4. Replace a faulty cable.
5. Replace POWER RELAY Board
6. Replace DRIVE Board or CONTROL
    Board.

F17 (SD-RAM error) 87

xx

xx

00 Access error to SDRAM

(IC1015 to IC1020) on the
CONTROL Board

1. Check the soldering condition of the
    SDRAM (IC1015 to IC1020).
2. Replace faulty parts or CONTROL
    Board.

F18 (Extension SD-
RAM error)

88

xx

00 00 Access error to an additional

SDRAM attached to CN1005
and CN1006

1. Check whether the additional SDRAM
    is attached to CN1005 and CN1006
    properly. Or reattached it.
2. Check the SDRAM specifications.
3. Check the soldering condition of the
    CN1005 and CN1006 (for the SDRAM)
    and its surrounding circuits on the
    CONTROL Board to repair it.
4. Replace faulty parts or CONTROL
     Board.

F31 (Analog IC
error)

95 00 00 00 Access error to Analogue IC

1. Check the following connections and
    soldering condition to repair it:
   

→ IC2009 to IC2016 (CENTER Board)

       and their surround circuits
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 (IC1021) and its
    surrounding circuits on the CONTROL
    Board to repair it.
2. Replace faulty parts or CONTROL
    Board.

F34 (EEPROM
error)

98 00 00 00 Access error to EEPROM

1. Check the soldering condition of the
    EEPROM (IC1003) and its surrounding
    circuits on the CONTROL Board.
2. Replace faulty parts or CONTROL
    Board.

F36 (ASIC (Front)
SDRAM Error)

9A xx

00 00 Access error to SDRAM

(IC1015 to IC1018)

1. Check the soldering condition of the
    parts surrounding the Gate Array
    (IC1011).
2. Replace faulty parts or CONTROL
    Board.