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PN-A601　FIRMWARE UPDATA PROCEDURES/EDID WRITING PROCEDURES

 5 – 15

■ CANCELING WRITE-PROTECT OF EDID BY THE SERIAL COMMAND

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When you use the serial command in Windows Vista, because the Hyper terminal is not equipped with in this model, use other software corre-
sponding to serial communication.

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Connection method: Connect the serial port of PC with the RS-232C input pin of the monitor by using the straight cable. 

1 ) Execute [START] - [Program] - [Accessory] - [Communication] - 

[Hyper terminal]. 
The window below is displayed. Enter an optional name and press

[OK].

2 ) The window below is displayed. Select the number of COM con-

nected to the monitor and press [OK.]

3 ) The communication setting screen is displayed. 

Set as shown below. 

4 ) Set the local echo. 

Select “Property” in the file menu. 

5 ) Select [Settings] tab and press [ASCII Setup...].

6 ) Check “Send line ends with line feeds” and “Echo typed characters

locally” and press [OK]. 

7 ) Press [Enter] key once and check to confirm that “OK” is returned.

If “OK” is returned, the connection is proper. 

8 ) Send the EDWP command. 

Enter “EDPW1230” and press [Enter] key.

If “OK” is returned, the EDID write-protect is canceled.

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The write protect can be released in SERVICE MENU 2 as well.
3Refer to page 4 - 8  "6 - 1. EDID WRITE PROTECT RELEASE".

PN-A601　FIRMWARE UPDATA PROCEDURES/EDID WRITING PROCEDURES

 5 – 16

■ VGA, HDMI

■ DVI (ONLY WHEN THE UNIT IS EQUIPPED WITH PN-ZB01.)

DIP switch setting

Parallel (EDID)

Serial (PROGRAM)

AUTO

MANUAL

1502A

T1620

1502A

T1620

Body  rear

VGA

terminal

Connect to USB 
port of PC

Connect to printer port of PC

VGA cable

VGA

USB

Serial connector

Parallel  
connector

USB cable

No need to connect
 the serial cable.

DVI-D connector

DVI-D cable

SW1 :
SW2 :
SW3 :
SW4 :

Jig PWB (X1049MP-27)

Left, right, right, right with the parallel connector 
on the upper side. 

HDMI

terminal

DIP switch setting

Parallel (EDID)

Serial (PROGRAM)

AUTO

MANUAL

1502A

T1620

1502A

T1620

Body  rear

VGA

terminal

Connect to USB 
port of PC

Connect to printer port of PC

VGA

USB

Serial connector

Parallel  
connector

USB cable

No need to connect
 the serial cable.

DVI-D connector

DVI-HDMI cable

SW1 :
SW2 :
SW3 :
SW4 :

Jig PWB (X1049MP-27)

Left, right, right, right with the parallel connector 
on the upper side. 

HDMI

terminal

DVI input

terminal

PN-ZB01

PN-A601　DISASSEMBLY AND ASSEMBLY

 6 – 1

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Do not touch the PWBs which employ lead-free solder with bare hands. Always use gloves.

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Use the earth band when performing the procedures.

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When servicing the Display such as replacing a PWB, make sure to service with the Display laid and with a protective sheet spread over the

LCD panel.

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While working with the Display laid, or when moving the Display after the work, applying stress to the bezel may cause it to get deformed.  Be

sure to handle it with great care.

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Using the installation tools separately available (connection square pipe etc.), the stress applied to the bezel can be prevented, so the use of
the tools are highly recommended.

E

E

E

F

F

A

B

C

D

G

H

1

4

2

3

9

10

2 14

11

2

7

13

5

6

8

12

15

A

I/F PWB

CPWBX1131MP61

B

Key  PWB

DUNT-1885MPZZ

C

AC relay PWB

CPWBF1117MPE4

D

LED TCON PWB

CPWBX1135MP51

E

Thermistor PWB

CPWBF1674FC31

F

LED power unit

RDENC1022MPPZ

G

System power unit

RDENC1021MPPZ

H

LED DRV PWB

CPWBX1134MPE1

1

LED FFC 1

QCNW-1514MPZZ

2

LED FFC 3

QCNW-1516MPZZ

3

LCD cable

QCNW-1450MPQ1

4

LED signal harness V2

QCNW-1524MPPZ

5

Inlet harness

QCNW-1459MPPZ

6

MSW harness

QCNW-1472MPPZ

7

AC harness L

QCNW-1521MPPZ

8

FAN harness

QCNW-1525MPPZ

9

LED power harness L

QCNW-1519MPPZ

F

LED power harness S

QCNW-1518MPPZ

G

System power harness

QCNW-1526MPPZ

H

IF signal harness

QCNW-1523MPPZ

I

KEY cable FFC A601

QCNW-1549MPPZ

J

IF-TCON FFC

QCNW-1517MPPZ

K

AC harness S

QCNW-1520MPPZ

PN-A601　DISASSEMBLY AND ASSEMBLY

 6 – 2

1 ) Unscrew 6pcs of screws (M3 x 8 (silver)), and remove the Fan cover.

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0.55 - 0.65N•m

2 ) Disconnect 8 connectors. Unscrew 16pcs of screws (M3 x 28 (silver)), and remove the Fan.

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Attach it so that the label can be seen.

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Attach the Fan with attention to the orientation so that the Fan harness can be pulled out in alignment with the engraved mark of plate.

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Be careful of the location of the Fan fixing screw and not to drop the screw.

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Be careful not to get the harness wire caught when replacing the Fan.

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0.55 - 0.65N•m

Screw x 6

Screw x 16

FAN

Mark

Mark

Mark

Mark

Mark

Mark