Lg E2360s User manual

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Only for training and service purposes

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COLOR MONITOR

SERVICE MANUAL

MODEL: E2360S (E2360S-PNW.A**NAP for LGD LM230WF5-TRA1)/

E2360T (E2360T-PNW.A**NAP forLGD LM230WF5-TRA1) **Sales Market

CAUTION

BEFORE SERVICING THE UNIT,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

*To apply the M-STAR Chip.

Internal Use Only

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Only for training and service purposes

CONTENTS

SPECIFICATIONS ..........................................................2

PRECAUTIONS ..............................................................3

TIMING CHART ..............................................................7

DISASSEMBLY .............................................................8

BLOCK DIAGRAM.........................................................10

DISCRIPTION OF BLOCK DIAGRAM ......................... 12

ADJUSTMENT ............................................................. 13

SERVICE MODE ......................................................... 16

TROUBLESHOOTING GUIDE .................................... 17

WIRING DIAGRAM ...................................................... 23

EXPLODED VIEW........................................................ 24

SCHEMATIC DIAGRAM............................................... 26

SPECIFICATIONS

E2360S&T

1. LCD CHARACTERISTICS

Type: Flat Panel Active matrix-TFT LCD

Active Display Area: 23.0 inches/58.4 cm

Pixel Pitch: 0.265 mm x 0.265 mm

Surface Treatment: Anti-Glare coating

Resolution: Max: VESA 1920x1080@60Hz.

Recommend: VESA 1920x1080@60Hz.

Video Input:

Signal Input: 15 pin D-Sub Connector;

DVI-D Connector (Only for E2360T)

Input Form: RGB Analog (0.7 Vp-p/75 ohm)

Digital(Only for E2360T)

Plug&Play: DDC2AB (Analog)

DDC2B (Digital) (Only for E2360T)

2. POWER SUPPLY

2-1. Power: 12V==3.0A

2-2. Power Consumption

On Mode: 30W (Typ.)

Sleep Mode: ≤1 W

Off Mode: ≤0.5 W

3. Sync Input

Horizontal Freq. 30 kHz to 83 kHz (Automatic)

Vertical Freq. 56 Hz to 75 Hz (Automatic)

Input Form Separate Sync.

Digital (Only for E2360T)

4. ENVIRONMENT

4-1. Operating

Temperature: 10°C to 35°C

Humidity: 10 % to 80% non-Condensing

4-2. Storage

Temperature: -20°C to 60 °C

Humidity: 5 % to 90 % non-Condensing

5. DIMENSIONS (with Stand)

Width 54.23 cm (21.35 inch)

Height 41.20 cm (16.22 inch)

Depth 17.20 cm (6.77 inch)

DIMENSIONS (without Stand)

Width 54.23 cm (21.35 inch)

Height 40.83 cm (16.07 inch)

Depth 3.10 cm (1.22 inch)

6. WEIGHT (excl. packing)

Weight: 2.6 kg (5.73 lb)

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Only for training and service purposes

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Only for training and service purposes

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Only for training and service purposes

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Only for training and service purposes

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Only for training and service purposes

TIMING CHART

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E2360S&T

Display Modes (Resolution) Horizontal Freq. (kHz) Vertical Freq. (Hz)

1 720 x 400 31.468 70

2 640 x 480 31.469 60

3 640 x 480 37.500 75

4 800 x 600 37.879 60

5 800 x 600 46.875 75

6 1024 x 768 48.363 60

7 1024 x 768 60.123 75

8 1152 x 864 67.500 75

9 1280 x 1024 63.981 60

10 1280 x 1024 79.976 75

11 1680 x 1050 65.290 60

*12 1920 x 1080 67.500 60

*Recommend Mode

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Only for training and service purposes

DISASSEMBLY-Set

#1 

Put the monitor on a soft flat.

#2 

Remove the base ass’y.

Turn the screw by using the screw handle.

#3 

Remove the Rear Cover ass’y.

#4 

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The Rear Cover ass’y.

#5 

Disconnect all the wires/FFC cable.

#6 

Remove the main frame.

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Only for training and service purposes

#7

Main frame and main board.

#8

The panel.

Note: DVI only for E2360T.

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Only for training and service purposes

BLOCK DIAGRAM

Note: DVI only for E2360T.

Scaler IC

TSUMU1BRWL3-1/

TSUMU5BRWHL3-1

(U401)

D-SUB

(CN101)

Crystal

14.31818MHZ

(

X401

)

CN401 to Key board

RGB, H/V SYN

DDC1_SCL

DDC1_SDA

Flash ROM

PM25LD020C-SCE

(

U402

)

CN409 to Panel

Output

Panel Power

sequence

control circuit

Block

(Q301&Q302)

AP2114D-3.3TRG1

(U702)

3.3V

DVI (Optional)

(CN102)

RX (0-2, C) P/N

DDC2_SCL

DDC2_SDA

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Only for training and service purposes

CONVERTER BLOCK DIAGRAM

Converter

Boost Circuit Ignition LED bar

ON/OFF circuit

Current balance

Control IC

MP3389EF

(U801)

Feedback circuit

OVP circuit

Current

Feedback

DIM circuit

12V

BKLT-EN

BKLT-VBRI

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Only for training and service purposes

DESCRIPTION OF BLOCK DIAGRAM

1. Video Controller Part.

This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to

the digital video signal using a pixel clock.

The pixel clock for each mode is generated by the PLL.

The range of the pixel clock is from 25MHz to 149MHz.

This part consists of the Scalar, ADC converter, TMDS receiver.

The Scalar gets the video signal converted analog to digital, interpolates input to 1920 x 1080 resolution signal and

outputs 8-bit R, G, B signal to transmitter.

2. Power Part.

This part consists of the one 3.3V regulators to convert power which is provided 12V in Adapter board, 12V is

provided for convert circuit.

3. MICOM Part.

This part is including video controller part. And this part consists of Reset IC and the Micom.

The Micom distinguishes polarity and frequencies of the H/V sync are supplied from signal cable.

The controlled data of each mode is stored in scalar.

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Only for training and service purposes

ADJUSTMENT

Windows EDID V1.0 User Manual

Operating System: DOS, windows98, 2000, XP

1. Parallel port setting

Enter your bios, and do as followings.

a) Integrated peripheral

b) Super IO Device

c) Parallel port mode

you should set the” parallel port mode” to SPP for using the DOS EDID tool surely.

2. EDID Write

1. Connect the signal line of monitor with DDC recorder.

2. Choose the DDC RECORD program, and it shows on the screen, then choose the correct source base on the

monitor.

3. Click “LoadFile”, then key in the manufacturer name, model name, product code, then choose the correct

model name base on the monitor.(as Fig.2)

4. Scan serial No. to DDC recorder by Bar Reader, then read again in the Verify SN.

5. According to the message of DDC program, when the picture as fig.1 appears, it will show DDC record has

finished.

E2360S (Analog only)

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Only for training and service purposes

E2360T (Analog&DVI)

Fig.1

Please check Manufacturer Name, Vendor Assigned Code, Monitor Name, Serial Number：*****[????????*****]

(it must be the same as Bar Code),Week of Manufacture：**,Year of Manufacture：****,Checksum：** (It must be

the same as the last byte of data table, as follows picture shows). Above of all must be right, then if it shows the

green “PASS”, it means record succeeds ,the red “Fail” means record fails; Then check the power supply and

signal line, and ensure they are connected well ,then do DDC record again from the third step.

E2360S (Analog only)

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Only for training and service purposes

E2360T (Analog&DVI)

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Fig.2

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Only for training and service purposes

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1) Turn off the power switch at the front side of the display.

2) Press MODE, POWER switch with 1 second interval, press MENU.

3) The SVC OSD menu contains additional menus that the User OSD menu as described below.

a) CLEAA ETI: NO

b) Auto Color: NO

c) AGING: Select Aging mode (on/off).

d) PANEL: Used panel type

e) NVRAM INIT: NO

f) R/G/B-9300K: Allows you to set the R/G/B-9300K value manually.

g) R/G/B-6500K: Allows you to set the R/G/B-6500K value manually.

h) R/G/B-Offset: Allows you to set the R/G/B-Offset value manually. (Analog Only)

i) R/G/B-Gain: Allows you to set the R/G/B-Gain value manually. (Analog Only)

e) R/G/B-sRGB: Allows you to set the R/G/B- sRGB value manually.

SERVICE MODE

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Only for training and service purposes

TROUBLESHOOTING GUIDE

1. NO POWER

No Power

(Power Indicator Off)

Please reinsert and

make sure the AC of

100-240V is normal

Measure

U702 PIN2=3.3V

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Check the Adapter/convert

section

Check CN702 or

replace U702

NO

YES

Check X401 oscillate

waveforms are normal Replace X401

Replace U401

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NO

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Only for training and service purposes

2. NO RASTER (OSD IS NOT DISPLAY)-LIPS

LIPS

YES

No Raster

(OSD Is Not Displayed)

Check U702

PIN 2 =3.3V?

Check CN702

PIN3 =12V?

Check adapter board and find out a

short point as penning each power line

1. Check U702

2. Check C707,C708,C709

NO

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Only for training and service purposes

3. NO RASTER (OSD IS NOT DISPLAY)-MSTAR

1. Check C426,C428

2. Check X401

3. Trouble in Scaler IC

Scaler pin 98, 99

oscillates as

14.31818MHz?

No Raster

(OSD Is Not Displayed)

Check connection line from

D-SUB to Scaler

Trouble in cable or LCD

module

NO

YES

NO

Scaler IC

pin 27 H Sync?

pin 28 V Sync?

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Only for training and service purposes

4. TROUBLE IN DPM

Trouble in DPM

Scaler IC

pin 27 H Sync?

pin 28 V Sync?

Check H/V sync line

Trouble in cable or LCD

module

NO

YES

LG E2360S User manual

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