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93

Step 1 Remove Top Cabinet.
Step 2 Remove Digital P.C.B..
Step 3 Connect 23P Extension Bridge Connector (RFKZ0216)
from P6801 to P59301.
Step 4 Connect 15P Extension Bridge Connector (RFKZ0327)
from P6001 to CN2304.
Step 5 Connect 9P Extension Bridge Connector (RFKZ0323)
from JW2 to CN2309.
Step 6 Connect 23P Extension Bridge Connector (RFKZ0216)
from CN5402 to CN2303.

Step 7 Connect 4P FFC at the connector (P55006) on Digital
P.C.B..
Step 8 Connect 45P FFC at the connector (P55001) on Digital
P.C.B..
Step 9 Connect 3P Cable at the connector (CN2305) on Digital
P.C.B..

Step 10 Connect 3P Wire at the connector (CN5401) on Digital
P.C.B..
Step 11 Upset the Digital P.C.B. and place it on an insulated
material.
Step 12 Proceed to check Side A of Digital P.C.B..

94

Step 1 Remove Top Cabinet.
Step 2 Remove Damp P.C.B..
Step 3 Remove 4 screws.

Step 4 Lift up to remove the Damp P.C.B. as arrow shown. 

Step 5 Place the Damp P.C.B. onto the insulated material.
Step 6 Connect 4P Cable at the connector (CN5400) on Damp
P.C.B..
Step 7 Connect 23P Extension Bridge Connector (RFKZ0216)
from CN5402 to CN2303.
Step 8 Proceed to check Damp P.C.B..

95

Step 1 Remove Top Cabinet.
Step 2 Remove SMPS P.C.B., AC Inlet P.C.B. and Voltage
Selector P.C.B..
Step 3 Connect 4P Cable at the connector (CN5400) on Damp
P.C.B..

Step 4 Connect 9P Extension Bridge Connector (RFKZ0323)
from CN2309 to JW2.
Step 5 Upset the SMPS P.C.B., AC Inlet P.C.B. and Voltage
Selector P.C.B. and place it on an insulated material.
Step 6 Proceed to check SMPS P.C.B., AC Inlet P.C.B. and
Voltage Selector P.C.B..

96

After repairing Digital P.C.B. and Traverse Unit, it is recommended to perform the following inspection to ensure normal operation of
the unit. 

Use the following checklist to establish the judgment criteria for the picture and sound. 

After repairing the unit, it is recommended to perform the firmware version-up. Please refer to section “How to update the Firmware”
for firmware version-up procedure.

No. 

Procedure 

Item to Check 

1

Turn on the power, and confirm items pointed out. 

Items pointed out should reappear. 

2

Insert RAM disc.

The Panasonic RAM disc should be recognized. 

4

Perform playback for one minute using the RAM disc. 

No abnormality should be seen in the picture, sound or operation. 
*Panasonic DVD-RAM disc should be used when recording and play-
back. 

5

Perform playback for one minute using the BD-Video disc.

No abnormality should be seen in the picture, sound or operation.

6

If a problem is caused by a BD-Video disc, VCD, DVD-R, DVD-
Video, Audio-CD, or MP3, playback the test disc. 

No abnormality should be seen in the picture, sound or operation. 

7

After checking and making repairs, upgrade the firmware to the 
latest version (refer to 3.2). 

Make sure that [UPD OK] appears in the FL displays. 
*[UNSUPPORT] display means the unit is already updated to newest 
same version. Then version up is not necessary. 

8

Transfer [9][9] in the service mode setting, and initialize the ser-
vice settings (return various settings and error information to 
their default values. The laser time is not included in this initial-
ization). 

Make sure that [CLR] appears in the FL display. 
After checking it, turn the power off. 

Item Contents Check 

Item Contents Check 

Picture 

Block noise 

Sound 

Distorted sound 

Crosscut noise 

Noise (static, background noise, etc.) 

Dot noise 

The sound level is too low. 

Picture disruption 

The sound level is too high. 

Not bright enough 

The sound level changes. 

Too bright 
Flickering color 
Color fading