KV-S8147, KV-S8127, KV-S8150, KV-S8130, KV-S8120 - Panasonic Other Service Manuals Service Manual (repair manual). Page 98

98

Without connecting the scanner to the PC, the following Scanner Service Mode can be performed. The following mechanical test is
generally used after replacing or reassembling rollers (Drive Rollers) and other mechanical parts related to feeding documents.

Entering 
Service Mode

1 Hold down the "Power" button for a second to turn on the 

scanner while pressing "Menu" and "Back" buttons. 

Blinking -> OFF 

2 Continue holding down the  "Menu" and "Back" buttons until 

the LCD displays the service mode screen.

OFF

Exiting 
Service

 Mode

1 Hold down the "Power" button for over a second to turn off the 

power.

OFF

1. Feed

1 Enter the service mode.

Blinking -> OFF 

2 Select the feed test from the service mode screen. 

Press the "Enter" button

OFF

If any document is 
already set, the feed 
test will start.

3 Set documents and press the "START/STOP" button.

OFF

4 The feed test starts and the document is fed.

Blinking

5 Press the "Back" button to return the service mode screen.

2. Shading

1 Enter the service mode.

Blinking -> OFF 

Before executing the 
shading function, be

 

sure to clean the

 

Scanning Glass (F)

 & 

(B),

 Background Plate  

(F)

 & (B), rollers, and 

conveyors related to

 

conveying

 documents. 

Don't stop the process 
by

 opening any doors 

or turning off the

 

scanner

 during the 

execution of the 

shading adjustment.

2 Set the Shading Sheet (Part No.: PJQXC0330Z-J) on the feed 

tray in landscape orientation.

OFF

3 Select the Shading from the service mode screen. 

Press the "Enter" button.

OFF

4 Paper feeding starts to execute the shading adjustment.

Blinking

5 During the adjustment, LCD shows "Shading". 

Press the "Back" button to return to the service mode screen.

Blinking -> OFF 

3. CIS LED (F)

1 Enter the service mode.

Blinking -> OFF

2 Open the scanner door.

OFF

3 Select the CIS LED (F) from the service mode screen. 

Press the "Enter" button.

OFF -> Blinking

4 Check the front LED.

Blinking

5 Press the "Back" button to stop the test and return to the 

service mode screen.

Blinking -> OFF

4. CIS LED (B)

1 Enter the service mode.

Blinking -> OFF

2 Open the scanner door.

OFF

3 Select the CIS LED (B) from the service mode screen. 

Press the "Enter" button.

OFF -> Blinking

4 Check the back LED.

Blinking

5 Press the "Back" button to stop the test and return to the 

service mode screen.

Blinking -> OFF

5. CIS LED

(Front/Back)

1 Enter the service mode.

Blinking -> OFF

2 Open the scanner door.

OFF

3 Select the CIS LED (F/B) from the service mode screen. 

Press the "Enter" button.

OFF -> Blinking

4 Check the front and back LED.

Blinking

5 Press the "Back" button to stop the test and return to the 

service mode screen.

Blinking -> OFF

6. Simulate feed

1 Enter the service mode.

Blinking -> OFF

2 Select the Simulate feed from the service mode screen. 

Press the "Enter" button.

OFF

3 Check the simulate feed.

OFF -> Blinking

4 Press the "Back" button to stop the test and return to the 

service mode screen.

Blinking -> OFF

Blinking -> OFF