Iiyama PLB2409HDS-B1, PLB2409HDS-W1, PLB2409HDS Service Manual

23.6"W LCD Color Monitor Iiyama PLB2409HDS

1

Service

Service

Service

PLB2409HDS-B1

PLB2409HDS-W1

Horizontal Frequency

Analog: 24-80Hz

Digital: 30-80Hz

TABLE OF CONTENTS

Description Page Description Page

SAFETY NOTICE

ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSIS

AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING

ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

Table Of Contents…………………………………………...1

Revision List………………………………………………....2

Important Safety Notice.…..………......................……......3

1. Monitor Specification..............................…………........4

2. LCD Monitor Description…………………………….......5

3. Operation Instructions....................................…...........6

3.1 Controls and connectors.....................…....................6

3.2 Adjusting the Picture...........................…....................7

4. Input/Output Specification............…………….............13

4.1 Input Signal Connector............…………...................13

4.2 Factory Preset Display Modes......…........................15

4.3 Panel Specification.....……………….........................16

5. Block Diagram….........................................................18

5.1 Software Flow Chart………………………….……….18

5.2 Electrical Block Diagram……………………...….......20

6. Schematic……………..............................................22

6.1 Main Board....……….............................................22

6.2 Power Board………………………………………....28

6.3 Key Board…………………...….……………………30

7. PCB Layout..………….............................................31

7.1 Main Board……….................................................31

7.2 Power Board…......................................................32

7.3 Key Board…..........................................................35

8. Maintainability………...............................................36

8.1 Equipments and Tools Requirement......................36

8.2 Trouble Shooting………........................................36

9. White-Balance, Luminance adjustment………..…...42

10. Monitor Exploded View…………………….…........44

11. BOM List…............................................................45

12. Different Parts List………………………………..…59

CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

23.6"W LCD Color Monitor Iiyama PLB2409HDS

2

Revision List

Version Date Revision History TPV Model Name

HDRMNHDBAWY1RN

A00 Dec.-25-08 Initial release

HDRMNHDBAWY2RN

HDRMNHDJAWYBRN

A01 Jan.-20-09 Add New BOM

HDRMNHDJAWYARN

23.6"W LCD Color Monitor Iiyama PLB2409HDS

3

Important Safety Notice

Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service

procedures recommended by AOC and described in this service manual are effective methods of performing service

operations. Some of these service operations require the use of tools specially designed for the purpose. The

special tools should be used when and as recommended.

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in

order to minimize the risk of personal injury to service personnel. The possibility exists that improper service

methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE

NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in

which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not

undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not

recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the

equipment will be jeopardized by the service method selected.

Hereafter throughout this manual, AOC Company will be referred to as AOC.

WARNING

Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock,

fire, or other hazards.

Under no circumstances should the original design be modified or altered without written permission from AOC.

AOC assumes no liability, express or implied, arising out of any unauthorized modification of design.

Servicer assumes all liability.

FOR PRODUCTS CONTAINING LASER:

DANGER-Invisible laser radiation when open AVOID DIRECT EXPOSURE TO BEAM.

CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may

result in hazardous radiation exposure.

CAUTION -The use of optical instruments with this product will increase eye hazard.

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S

REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF

THIS SERVICE MANUAL.

Take care during handling the LCD module with backlight unit

-Must mount the module using mounting holes arranged in four corners.

-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen.

-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to

the panel.

-Protect the module from the ESD as it may damage the electronic circuit (C-MOS).

-Make certain that treatment person’s body is grounded through wristband.

-Do not leave the module in high temperature and in areas of high humidity for a long time.

-Avoid contact with water as it may a short circuit within the module.

-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may

damage the panel.)

23.6"W LCD Color Monitor Iiyama PLB2409HDS

4

1. Monitor Specification

23.6"W LCD Color Monitor Iiyama PLB2409HDS

5

2. LCD Monitor Description

The LCD Monitor will contain a main board, a power board and a key board which house the flat panel control logic,

brightness control logic and DDC.

The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips

each voltage.

Video signal, DDC

Power Board

(

Include adapter and inverter)

Flat Panel and

CCFL backlight

Main Board

RS232 Connector

For white balance

adjustment in

factory mode

HOST Computer

CCFT Drive.

AC-IN

100V~240V

Monitor Block Diagram

Key board

23.6"W LCD Color Monitor Iiyama PLB2409HDS

6

3. Operation Instructions

3.1 Controls and connectors

23.6"W LCD Color Monitor Iiyama PLB2409HDS

7

3.2 Adjusting the Picture

1) Press the MENU Button to start the On Screen Display feature. There are additional Menu items which can be

switched by using the + / - Buttons.

2) Select the Menu item which contains the adjustment icon relating to the adjustment you want to make. Press the

MENU Button. Then, use the + / - Buttons to highlight the desired adjustment icon.

3) Press the MENU Button again. Use the + / - Buttons to make the appropriate adjustment or setting.

4) Press the AUTO Button to leave the menu, and the settings you just made would be automatically saved.

23.6"W LCD Color Monitor Iiyama PLB2409HDS

8

23.6"W LCD Color Monitor Iiyama PLB2409HDS

9

23.6"W LCD Color Monitor Iiyama PLB2409HDS

10

23.6"W LCD Color Monitor Iiyama PLB2409HDS

11

23.6"W LCD Color Monitor Iiyama PLB2409HDS

12

23.6"W LCD Color Monitor Iiyama PLB2409HDS

13

4. Input/Output Specification

4.1 Input Signal Connector

No. Description No. Description

1 Red Video 9 NC

2 Green Video 10 Logic Ground

3 Blue Video 11 Monitor Ground

4 Monitor Ground 12 DDC-Serial Data

5 DDC-Return 13 H -Sync.

6 Red Ground 14 V -Sync.

7 Green Ground 15 DDC-Serial Clock

8 Blue Ground

D-Sub mini 15pin Connector

15

6

10

11 15

No. Description No. Description

1

TMDS data 2－

13

TMDS data 3＋(NC)

2

TMDS data 2＋

14

＋5V Power

3 TMDS data 2/4 Shield 15 GND (return for +5V,hsync,vsync)

4

TMDS data 4－(NC)

16 Hot Plug Detect

5

TMDS data 4＋(NC)

17

TMDS data 0－

6 DDC Clock 18

TMDS data 0＋

7 DDC Data 19 TMDS data 0/5 Shield

8 Analog Vertical Sync 20

TMDS data 5－(NC)

9

TMDS data 1－

21

TMDS data 5＋(NC)

10

TMDS data 1＋

22 TMDS Clock Shield

11 TMDS data 1/3 Shield 23 TMDS Clock +

12

TMDS data 3－(NC)

24

TMDS Clock －

DVI-D 24pin Connector

23.6"W LCD Color Monitor Iiyama PLB2409HDS

14

No. Description No. Description

1

D2 ＋

13 CE Remote

2 D2 Shield 14 NC

3

D2＋

15 DDC CLK

4

D1＋

16 DDC Data

5 D1 Shield 17 GND

6

D1－

18

＋5V

7

D0＋

19 HP DET

8 D0 Shield 20 SHELL1

9

D1－

21 SHELL2

10

CK＋

22 SHELL3

11 CK Shield 23 SHELL4

12

CK－

HDMI 19-pin Connector

23.6"W LCD Color Monitor Iiyama PLB2409HDS

15

4.2 Factory Preset Display Modes

23.6"W LCD Color Monitor Iiyama PLB2409HDS

16

4.3 Panel Specification

General Descriptions

M236H1-L01 is a 23.6” TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS

interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors. The inverter module

for Backlight is not built in.

4.3.1 General Feature

4.3.2 Optical Characteristics

23.6"W LCD Color Monitor Iiyama PLB2409HDS

17

4.3.3 Electrical Characteristics

TFT LCD Module

Back-Light Unit

23.6"W LCD Color Monitor Iiyama PLB2409HDS

18

5. Block Diagram

5.1 Software Flow Chart

1

2

N

Y

5

Y

N

10

Y

N

12

Y

N

7

Y

N

6

4

3

8

9

14

11

13

Y

N

15

Y

N

16

17

19

Y

N

18