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PN-L702B　IMPORTANT INFORMATION FOR SERVICING THE DISPLAY

 3 – 1

The following information as well as user setting information are saved to the EEPROM (IC1007) controlled by main firmware and the EEPROM

(IC401) controlled by sub firmware.

n

SERIAL NUMBER

n

USAGE TIME

*1

n

WHITE BALANCE SETTING VALUE

*1

n

GAMMA SETTING VALUE

n

CALIBRATION SETTING VALUE

n

TEMPERATURE MONITOR SETTING INFORMATION

*

1

This information is linked with the LCD module.

n

MAC ADDRESS

Therefore, when the I/F PWB, the LCD module, IC1007 is replaced, initialization and setting must be performed according to necessity. 

In addition, after completion of the work, perform “ALL RESET”.

n

Since the MAC address is stored in the IC401, it must not be replaced in servicing. 
There is no replacement part setting.

In some cases, the model name to be set may be different.
3Refer to page 4 - 8  "6 - 2. MODEL NAME SETTING FUNCTION".
3Refer to page 4 - 24  "14. MODEL NAME SETTING PROCEDURES".

The machine has its own serial number which is described on the nameplate at the back of the machine. 
3Refer to page 4 - 9  "6 - 3. SERIAL NUMBER SETTING FUNCTION".
3Refer to page 4 - 22  "12. SERIAL NUMBER WRITING PROCEDURES".

This information is linked with the LCD module. When replacing the I/F PWB, read the information before replacement, 
and write it to the new I/F PWB after replacement.
3Refer to page 4 - 9  "6 - 4. USAGE TIME SETTING FUNCTION".
3Refer to page 4 - 23  "13. USAGE TIME SETTING PROCEDURE".

This information is linked with the LCD module. When replacing the I/F PWB, read the information before replacement, 

and write it to the new I/F PWB after replacement.
Execute resetting when the LCD module is replaced. 
3Refer to page 4 - 13  "8. WHITE BALANCE SETTING PROCEDURES BY OSD".

This value is linked with the LCD module. When replacing the I/F PWB, read this value before replacement and write it 

into the I/F PWB after replacement. When replacing the LCD module, reset this value. 
3Refer to page 4 - 18  "10. GAMMA SETTING PROCEDURES WITH THE OSD".

Since a service part I/F PWB has been adjusted, there is no need to set when replacing the I/F PWB.
Setting may be required depending on the replaced part.
3Refer to page 4 - 3  "3. CALIBRATION".

This is the setting information related to temperature watch.

Execute resetting when replacing the I/F PWB or the LCD module. 
 

The MAC address is the unique ID number assigned to the I/F PWB for LAN communication. 
The unique ID number is written into the I/F PWB (service part).

PN-L702B　IMPORTANT INFORMATION FOR SERVICING THE DISPLAY

 3 – 2

1 ) Read the following information from the monitor before replacement of the I/F PWB.

n

USAGE TIME

n

WHITE BALANCE VALUE

n

GAMMA SETTING VALUE

n

If the machine does not operate before replacement and reading cannot be made, this procedure is not required. 

2 ) Replace the I/F PWB and execute FACTORY RESET. 

3 ) Each service part has the EDID written in it. If necessary, the EDID should be updated to the latest.

4 ) Each service part has the firmware written in it.  If necessary, the firmware should be updated to the latest.

3Refer to page 5 - 1  "1. MAIN FIRMWARE UPDATE PROCEDURE".
3Refer to page 5 - 4  "2. LAN MICROCONTROLLER FIRMWARE UPDATING PROCEDURES (PN-ZB01)".

5 ) Set the MODEL TYPE depending on the destination.

The default destination of service parts is “JP.”
3Refer to page 4 - 2  "1 - 2. SERVICE MENU 2".

6 ) Set the MODEL NAME depending on the destination.

3Refer to page 4 - 8  "6 - 2. MODEL NAME SETTING FUNCTION".
3Refer to page 4 - 24  "14. MODEL NAME SETTING PROCEDURES".

7 ) Write the information read in the above step 1).

n

When the reading cannot be executed, conduct the following operation.

--- Set “0” to USAGE TIME and perform initialization. 
--- Reset the WHITE BALANCE set values.

--- Reset the GAMMA set value.

8 ) Write the serial number.

3Refer to page 4 - 9  "6 - 3. SERIAL NUMBER SETTING FUNCTION".
3Refer to page 4 - 22  "12. SERIAL NUMBER WRITING PROCEDURES".

9 ) Reset the temperature watch setting information.

3Refer to page 4 - 10  "6 - 5. SYSTEM LOG AND TEMPERATURE LOG INITIALIZATION".
3Refer to page 4 - 25  "15. TEMPERATURE MONITOR SETTING PROCEDURES".

1 ) Set “0” to USAGE TIME and perform initialization. 

2 ) Reset the WHITE BALANCE set values. 

3 ) Reset the GAMMA set value.

4 ) Reset the temperature watch setting information.

3Refer to page 4 - 10  "6 - 5. SYSTEM LOG AND TEMPERATURE LOG INITIALIZATION".
3Refer to page 4 - 25  "15. TEMPERATURE MONITOR SETTING PROCEDURES".

PN-L702B　IMPORTANT INFORMATION FOR SERVICING THE DISPLAY

 3 – 3

When any one of below parts is replaced, perform the FACTORY RESET and set as shown in the table below.

■ MAIN PWB

■ EXPANSION BOARD

*

1

Both main firmware and LAN microcontroller firmware need to be updated to the latest version.
3Refer to page 5 - 1  "1. MAIN FIRMWARE UPDATE PROCEDURE".
3Refer to page 5 - 4  "2. LAN MICROCONTROLLER FIRMWARE UPDATING PROCEDURES (PN-ZB01)".

*

2

*

3

*

4

It needs to be updated to the latest version.
3Refer to page 5 - 9  "4. EDID WRITING PROCEDURES".

*

5

3Refer to page 4 - 1  "1. OPERATING PROCEDURES".
3Refer to page 4 - 9  "6 - 3. SERIAL NUMBER SETTING FUNCTION".
3Refer to page 4 - 22  "12. SERIAL NUMBER WRITING PROCEDURES".
3Refer to page 4 - 8  "6 - 2. MODEL NAME SETTING FUNCTION".
3Refer to page 4 - 24  "14. MODEL NAME SETTING PROCEDURES".

*

6

3Refer to page 4 - 9  "6 - 4. USAGE TIME SETTING FUNCTION".
3Refer to page 4 - 23  "13. USAGE TIME SETTING PROCEDURE".

*

7

1 ) Check the version of firmware for the Touch Panel.

2 ) Check the amount of light using the LED Sensor Failure Diagnostic Tool.

3 ) Check the performance of the touch pen.  (drawing, reaction of buttons)

*1

*2

*3

*7

*4

*5

*6

IC300

STDP8028-AB 

(MARS)

Microcontroller-

equipped scaler IC

F

IC304

R1EX24002AS

AS0A

I

2

C compliant 

EEPROM 

(Stores EDID data 
for D-SUB.)

F

IC401

R1EX24002AS
AS0A

I

2

C compliant 

EEPROM 

(Stores EDID data 

for HDMI.)

F

IC1007

R1EX24128AS

AS0A

I

2

C compliant 

EEPROM 
(Stores settings 

data.)

F

F

F

F

F

IC1004

SST25VF032B

-66-4I-S2AF-T

Serial flash memory 

(Stores program.)

F

*1

*2

*3

*4

*5

*6

IC204

R1EX24002

ASAS0A

I

2

C compliant EEPROM 

(Stores EDID data for DVI.)

F

PN-L702B　SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES

 4 – 1

Used to display the model name, the manufacturing No., the firmware

version/checksum, and the usage time.

1 ) Press the [SIZE] button of the remote control for about 5 seconds

(the LED blinks, and the “F” mark is displayed in the upper left cor-
ner of screen.), press the [BRIGHT- ( 

1 )], [VOL- ( 4 )], [BRIGHT+

( 

3 )] and [VOL+ ( 2 )] button in sequence.

n

Immediately after turning on the power, “CALCULATING” is dis-

played for the checksum for a while, and the result is dipslayed.

n

“F” mark is displayed in red when the adjustment lock is set to

other than “Not” and displayed in blue when the OSD display is
set to “Not.” For the other cases, it is displayed in green. (The red

color of “F” mark takes priority.)

Model name

Serial number

FIRM VERSION　

Main firmware version

When the combination with the sub firm-
ware is not proper, “NG” is displayed.

Main firmware check sum

FIRM VERSION　

Sub firmware version

When combination with the main firmware 
is not proper, “NG” is displayed.

Sub firmware check sum

Usage time

When the white balance setting is reset to 

the initial value after replacement of the 

PWB or the panel, “W/BW” is displayed. 
When the calibration setting value is reset 

to the initial value, “CALIB” is displayed. 

(Normally it is not displayed.)

When the cable between the I/F PWB and 

the liquid crystal module is not connected 

properly, it is displayed. 
(Normally it is not displayed.)

SERVICE1

SERVICE2

SERVICE3

MODEL

S/N

SERVICE MENU1

FIRM VERSION (MAIN)
CHECK SUM (MAIN) 
FIRM VERSION (SUB)
CHECK SUM (SUB)

USAGE TIME

1/1

: PN-XXXX
: XXXXXXXX
: OK Ver 1.00 (110801)
: OK 1234ABCDEF
: OK Ver 1.00 (110801)
: OK 1234ABCD

: 999999H

END

̖[MENU]

ADJUSTMENT CHECK

: W/B CALIB

Only when the expansion board is equipped.

Only when the whitebalance
adjustment, calibration
adjustment, and is not excuted.