SPECIFICATIONS

1. LCD CHARACTERISTICSType : Color TFT LCDSize : 15.0 inch (38.1cm)Pixel Pitch : 0.297mm x 0.297mmElectrical Interface : LVDS InterfaceColor Depth : 8-bits/ 16,194,277colors Active Video Area : 304.1mm x 228.1mmSurface Treatment : Anti-Glare, Hard Coating (3H)Backlight Unit : Bottom edge side 2CCFL

(Cold Cathode Fluorescent Lamp)

2. OPTICAL CHARACTERISTICS2-1. Viewing Angle by Contrast Ratio ≥ 10

Left : 60° typ., 50° min.Right : 60° typ., 50° min.Top : 55° typ., 40° min.Bottom : 45° typ., 40° min.

2-2. Luminance : 160(min), 200(typ)

2-3. Contrast Ratio : 150(min), 250(typ)

3. SIGNAL (Refer to the Timing Chart)3-1. Sync Signal

1) Type : Separate Sync. (Horizontal & Vertical)2) Input Voltage Level : Low=0~0.8V, High=2.1~5.5V3) Sync Polarity : Positive or Negative

3-2. Video Input Signal

1) Type : R, G, B Analog2) Voltage Level : 0~0.714 Va) Color 0, 0 : 0 Vp-pb) Color 7, 0 : 0.467 Vp-pc) Color 15, 0 : 0.714 Vp-p

3) Input Impedance : 75 Ω

3-3. Operating Frequency

Horizontal : 31 ~ 61kHzVertical : 56 ~ 75Hz

4. POWER SUPPLY

4-1. Power AdaptorInput : AC 100~240V, 50/60Hz 1.2AOutput : DC 12V 3.0A

4-2. Power Consumption

5. ENVIRONMENT

5-1. Operating Temperature: 10°C~35°C (50°F~95°F)(Ambient)

5-2. Relative Humidity : 5%~95%(Non-condensing)

5-3. MTBF : 40,000(Min)

6. DIMENSIONS (with TILT/SWIVEL)

Width : 389.2mm (15.32'')Depth : 161.8mm (6.37'')Height : 382.4mm (15.05'')

7. WEIGHT (with TILT/SWIVEL)

Net. Weight : 4.8kg (10.58 lbs)Gross Weight : 6.8kg (14.99 lbs)

8. Audio Spec

8-1. Audio AMPInput : 0.700VrmsOutput : 1Wrms+1WrmsS/N : more then 40dB

8-2. SpeakerImpedance : 4 Ωinput : Max: 1.5W, Normal: 1W

MODE

POWER ON (NORMAL)

STAND-BY

SUSPEND

OFF

POWER OFF

H/V SYNC

ON/ON

OFF/ON

ON/OFF

OFF/OFF

-

POWER CONSUMPTION

less than 36 W

less than 3 W

less than 3 W

less than 3 W

less than 3 W

LED COLOR

GREEN

YELLOW

YELLOW

YELLOW

OFF

VIDEO

ACTIVE

OFF

OFF

OFF

-

TIMING CHART

- 4 -

VIDEO

SYNC

B

D

CF

E

A

H / V

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

H (Pixels)

V (Lines)

Sync

Polarity

+

–

–

+

–

–

–

–

–

–

–

–

+

+

+

+

+

+

+

+

–

–

–

–

–

–

+

+

Dot

Clock

25.175

28.322

25.175

30.24

31.5

31.5

36.0

40.0

50.0

49.5

57.2832

65

75

78.75

Frequency

31.468 KHz

70.0 Hz

31.468 KHz

70.0 Hz

31.469 KHz

60.0 Hz

35.00 KHz

66.67 Hz

37.861 KHz

72.8 Hz

37.50 KHz

75.0 Hz

35.156 KHz

56.25 Hz

37.879 KHz

60.3 Hz

48.077 KHz

72.188 Hz

46.875 KHz

75.0 Hz

49.725 KHz

74.55 Hz

48.363 KHz

60.0 Hz

56.476 KHz

70.0 Hz

60.023 KHz

75.0 Hz

Resolution

640 x 350

720 x 400(TEXT)

640 x 480

640 x 480

640 x 480

640 x 480

800 x 600

800 x 600

800 x 600

800 x 600

832 x 624(MAC)

1024 x 768

1024 x 768

1024 x 768

TotalPeriod

( E )800

449

900

449

800

525

864

525

832

520

840

500

1024

625

1056

628

1040

666

1056

625

1152

667

1344

806

1328

806

1312

800

VideoActive

Time ( A )640

350

720

400

640

480

640

480

640

480

640

480

800

600

800

600

800

600

800

600

832

624

1024

768

1024

768

1204

768

Blanking Time ( B )160

99

180

49

160

45

224

45

192

40

200

20

224

25

256

28

240

66

256

25

320

43

320

38

304

38

288

32

SyncDuration

( D )96

2

108

2

96

2

64

3

40

3

64

3

72

2

128

4

120

6

80

3

64

3

136

6

136

6

96

3

BackPorch ( F )48

60

55

34

48

33

96

39

128

28

120

16

128

22

88

23

64

23

160

21

224

39

160

29

144

29

176

28

FrontPorch ( C )16

37

17

13

16

10

64

3

24

9

16

1

24

1

40

1

56

37

16

1

32

1

24

3

24

3

16

1

MODE

1

2

3

4

5

6

7

8

9

10

11

12

13

14

1

523

8

7

14

9

16

17

22

21

6

11

10

2

15

18

3

13

12

20

4

MIC.

IN

AUDIO

IN

MIC.

OUT

19

EXPLODED VIEW PARTS LIST

Ref. No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

Part No.

3091TKL030B

3091TKL030E

6304FTS001A

3809TKL020B

3043TKK057M

3043TKK057Q

6633TZA003G

4951TKS072D

6871TST257A

6871TMT268C

6871TST256A

4951TKS077C

6631T11012N

332-068T

332-105F

6401TZZ025A

4950TKK337A

6634TBZ016A

6866TD9001F

6852TAZ006E

6852TAZ006F

5410TKK015D

381-240A

6634TFZ002A

4810TKK173A

Description

CABINET ASSEMBLY, LM568E BRAND 3090TKL029A ONLY TCO95 LABEL -For Europe

CABINET ASSEMBLY, LM568E BRAND 3090TKL029A TCO95, SILVER SPRAY -For Japan

LCD, LTM15C443L TOSHIBA 15.0 INCH XGA(1024 X 768) TFT COLOR W/O INVERTER

BACK COVER ASSEMBLY, LM568E 3808TKL023 ADD ADAPTOR LABEL

TILT SWIVEL ASSEMBLY, LM568E (BUILT-IN SPEAKER) SPRAY -For Europe

TILT SWIVEL ASSEMBLY, LM568E . BOTTOM(BLUE SPRAY) -For Japan

INVERTER ASSEMBLY, SAMSUNG LG1511 LB565C

METAL ASSEMBLY, "FRAME MAIN, LB568"

PWB(PCB) ASSEMBLY, SUB, LM568E SOUND TOTAL BRAND XAGC

PWB(PCB) ASSEMBLY,MAIN, LM568E ATLJC BRAND CL-18 TOTAL

PWB(PCB) ASSEMBLY, SUB, LM568E CONTROL TOTAL BRAND XAGC

METAL ASSEMBLY, "REAR FRAME, LM568(TOSHIBA)"

CONNECTOR ASSEMBLY, 20P H-H 120MM UL20276 LM568E INTERFACE,UNIXTAR

SCREW, PPB+3*10(MSWR/FZMW)

SCREW, PVS+4*10(MSWR/FZMW)

SPEAKER ASSEMBLY, LM568E T401SX154K14 SPEAKER ASSY 1W 4OHM

METAL,FIX SPEAKER (LM568E)

ADAPTER, AC-DC, ADP-36UB DELTA 12V 3.0A FOR LG

SIGNAL CABLE, UL 2990-9C(7.5) DT 1870MM GRAY(85964) LB500 DM

CORD,A/V, AUDIO UL 2851 #28-2C 1500MM QUARTZ KSD

CORD,A/V, A/V DH-1560SP-BL UL 2851 #28 1560MM GRAY(85964)

INSULATION, PVC SHEET LM568E(89483)

ADAPTER, AC, KPR-24 KAWASAKI 125V 15A BLACK -Only Japan

ADAPTER,SIGNAL, LIBERTY ENHANCE MAC 6-DIP -Only Japan

BRACKET, LB565C SUPPOTER INVERTER

EXPLODED VIEW

- 6 -

WIRING DIAGRAM

J4

CN2

CN1

J4

J10

J5 J3

Connector Ass’y P/N: 6631T11012N

(a)

(a)

(a)

(a)(a)

(a)

(a)

(a)

- 7 -

DISASSEMBLY

(b)

(b)

(c)

(c)

(c)

(a)

MIC.

IN

AUDIO

IN

MIC.

OUT

(a)

(b)

(b)

1. TILT/SWIVEL & BACK COVER REMOVAL(1) Remove two screws (a).(2) Remove the Tilt/swivel.(3) Remove four sheets.(3) Remove four screws (b) from the Back Cover.(4) Release six latchs (c).(5) Remove the Back Cover.

2. REAR METAL ASS’Y REMOVAL(1) Remove eight screws (a). (2) Remove the Rear Metal Ass’y.

Back Cover

- 8 -

(a)

(a)

(a) (a)(a)

(a)(a)

(a)

(a)

(a)

(a)

(a)

4. MAIN FRAME REMOVAL(1) Remove eight screws (a).(2) Remove the Main Frame.

5. LCD MODULE REMOVAL(1) Remove four screws (a).(2) Separate the LCD Module from the Main Frame.

LCD Module

(d)

(d)

(a)

(b)

(a)

(a)

(b)

(b)(a)

J4

J5

J10(a)

(a)

J3

J4

(c)(c)

(c)

3. MAIN PCB ASS’Y & CONTROL PCB , SOUND ASS’Y, SPEAKER ASS’Y REMOVAL(1) Disconnect J4,J5 and J10 from the Main PCB Ass’y.(2) Remove six screws (a).(3) Remove the Main PCB Ass’y.(4) Remove three screws (b).(5) Disconnect J4 and J3 from the Sound Ass’y(6) Remove the Sound Ass’y.(7) Remove three screws (c).(8) Remove the Control PCB Ass’y.(9) Remove two screws (d). (10) Remove two Metal Fix. (11) Remove the Speaker Ass’y

- 9 -

CN2

6. INVERTER ASS’Y REMOVAL(1) Disconnect CN2 (2) Remove two latch (a).(3) Remove the Inverter Ass’y.

(a)

(a)

BLOCK DIAGRAM

- 10 -

Pow

er P

art

DC

/DC

Con

vert

er(L

4973

)12

V

ST

5V

ST

5V

EE

PR

OM

24W

C08

AD

C/P

LL/S

cale

r(g

mZ

AN

1)

(MIC

OM

)

(MT

V21

2MS

64I)

Sw

itch

FD

C63

25L

Sw

itch

FD

C63

25L

Sch

mitt

Trig

ger

(74H

CT

14)

RG

B

H.V

D-

Sub

15P

DD

C

Con

trol

DC

Jack

SC

L

SD

A

CO

N10

P

Inve

rter

3.3

VD

3.3

V_P

L

Mo

du

le P

ow

er

3

.3V

3.3V

_PL

3.3V

D

ST

5V

RG

B

3.3V

_AD

Reg

ulat

orB

A03

3

Reg

ulat

orB

A03

3

Reg

ulat

orB

A03

3

3.3

V_A

D

+3.

3V

Hea

dph

one

MIC

In

MIC

Ou

t

Aud

io I

n

Aud

ioP

roce

ssor

(TD

A74

49)

Aud

io A

mp

(TD

A74

96L)

SC

LS

DA

78M

088V

A

12V

12V

(Aud

io B

/d)

Au

dio

Mut

e(A

ud

io B

/d)

CON 5P

12V

GN

D

SC

L

SD

AA

udio

Mut

e

12V

Aud

io M

ute

LCD

Inte

rfac

e20

Pin

Con

nect

or(1

2507

WR

-20P

)

LVD

S(L

VD

S83

)R

INR

CLK

Reg

ulat

orB

A03

3

Hsy

nc2

Vsy

nc2H

sync

2V

sync

2

Hsy

ncm

Vsy

ncm

+3.

3V

CON 5P

To A

udio

B/d

Mai

n B

/dA

ud

io B

/d

DESCRIPTION OF BLOCK DIAGRAM

- 11 -

1. Scaler One chip IC(GMZAN1, U3)GMZAN1 (U3) is one chip IC which it supports four internal function blocks of Video Amp, PLL,A/D converter and Video processor.Video signal (0.7Vp.p) clamped through C44, 45, 191 with matching IC’s proper cut off voltage.This signal is processed as a proper 8 bit digital signal by U3’s amplifying, phase locking, A/D converting,and scaling operations. U3 generates Clock, Horizontal and Vertical sync, Data Enable signals as LCD Panel’s input signals.

2. System Controller (Microprocessor) Circuit.1) Microprocessor (U4) distinguishes polarity and frequency by calculating horizontal and vertical sync input

from signal source. 2) Microprocessor (U4) carries out power control by sending power-down trigger signal to each IC. 3) Microprocessor (U4) communicates with EEPROM (U1), and GMZAN1 (U3)

through IIC(2 lines) or 6 bit bus line. It makes all devices operated properly.4) Microprocessor (U4) let User adjust screen by OSD function.

3. DC/ DC Converter.This circuit supplies DC power for each device needing DC voltage of 3.3VD, 3.3V_AD, 3.3V_PL, Module Power 3.3Vand 5VS.

L4973D5.1(U13) , the DC/DC controller IC converts input 12Vdc into 5VS and 3.3Vdc with peripheral circuit composed of Inductor (L11), condensing components (ZD5, C72), and Regulators(U2, U7, U24,U30). MODPWR(3.3V) for LCD module power is switched by U12, switching FET, controlled by Microprocessor.3.3VD, 3.3V_AD, and 3.3V_PL for GMZAN1 (U3) and 3.3V for LVDS (U9) are switched by U5, switching FET,controlled by Microprocessor for Power saving.

4. Display Data Transmitter Part (LVDS).This part transmit digital signal from the Scaler to the receiver of module.

5. Audio Part (TDA7449,TDA7496L)In This Circuit, Audio Processor(TDA7449) Which is Controlled by Microprocessor(U4) adjustvolume/treble/bass/balance of Audio signal which come from PC.The Signal come from TDA7449 is amplified by TDA7496L. The final output signal is output through speaker.

ADJUSTMENT

- 12 -

220

IBMCompatible PC

PARALLEL PORT

Power inlet (required)

Power LED

ST Switch

Power Select Switch(110V/220V)

Con

trol

Lin

e

Not u

sed

RS232

C

PARAL

LEL

V-SY

NC

POW

ER

ST

VGS

MONITOR

E

E

V-Sync On/Off Switch(Switch must be ON.)

F

F

A

A

BB

C

C

15105

5

69

1

1

1

14

13

25

6

5V

5V

5V

4.7K4.7K

4.7K

74LS06

74LS06

OFF ON

OFF

ON

11Video SignalGenerator

24V

AUDIO

DC OUT

MIC.IN

AUDIOIN

MIC.OUT

Figure 1. Cable Connection

All adjustment are thoroughly checked and correctedwhen the monitor leaves the factory, but sometimesseveral minor adjustment may be required.Adjustment should be following procedure and afterwarming up for a minimum of 10 minutes.Alignment appliances and tools.

- IBM Compatible PC- Programmable Signal Generator.(eg. VG-819 made by Astrodesign Co.)

- E(E)PROM with each mode data saved.- Alignment Adapter and Software.

1. Adjustment for Factory Preset Mode1) Run alignment program for LM568E on the IBM

compatible PC.2) Display cross hatch pattern at Mode 1.3) Select EEPROM ALL Init command and Enter.4) Press "Y" key, it will automatically save all FOS data

to EEPROM.

2. Adjustment for White Balance1) Display color 0,0 pattern at Mode 12.2) Set External Bright to MAX position and Contrast to

MAX Position.3) Select PRESET START → BIAS CAL command

and Enter.4) No attempt to manually adjust, BIAS data is auto-

matically adjusted and saved to the EEPROM.5) Display color 15,0 pattern at Mode 12.6) Select DRIVE CAL command and Enter.7) Color 1 (9300K) and Color 2 (6500K) are

automatically adjusted and saved to the EEPROM.8) Select PRESET EXIT command and Enter.

3. DDC Data Write Procedure1) Use this procedure only when there is some

probelm on EDID data.2) Select EEPROM → EDID Write command and

Enter.3) This will write the EDID data to EEPROM.

- 13 -

TROUBLESHOOTING GUIDE

1. NO POWER

CHECK U4.CHECK

U4 PIN 8 VOLTAGE(5V) ?

NO

NO POWER(POWER INDICATOR OFF)

CHECK ADAPTER,AND FIND OUT

A SHORT POINT AS OPENING

EACH POWER LINE

CHECK J1’SVOLTAGE

(12V) ?

NO

CHECK L11(OPEN CHECK)

CHECK U5 Voltage

(5V) ?

NO

U13’S PIN110V ?

CHECK U13, ANDCHECK 5VA LINE

CHECK IIC LINECONNECTION

(U4, U1)

CHECK U3’S VCC,X-TAL, RESET

IS U13 PIN2 VOLTAGE REPEATED AS PULSE SHAPE ?

NO

YES

YES

YES

NO YES

NO PROBLEM

NO

CHECK KEY CONTROLCONNECTOR ROUTINE

- 14 -

2. NO RASTER (OSD IS NOT DISPLAYED) – INVERTER

CHECK MICOM INVON/OFF PORT.

J4 PIN55V?

NO

NO RASTER(OSD IS NOT DISPLAYED)

CHECK ADAPTERJ4 PIN10

12V?

NO

1. CONFIRM BRIGHTNESSOSD CONTRL STATE.

2. CHECK MICOM DIM-ADJ PORT

J4 PIN15V?

NO

REPLACE INVERTER ASS’Y

CHECK PULSE AS

CONTACTING SCOPE PROBE TO CAUTION LABEL.

(CONTACT PROBE TO CAUTION LABEL.

CAN YOU SEE PULSE AT YOUR SCOPE?

NO

REPLACE CCFL LAMPIN THE LCD MODULE

YES

YES

YES

YES

- 15 -

1. CHECK PIN141, 142 SOLDERING CONDITION

2. CHECK X23. TROUBLE IN U3

U3 POWER PINS

3.3V?

NOCHECK U2, U24

U3 PIN141, 142OSCILLATE AS 14.3M?

NO

CHECK U9’S SOLDERINGCONDITION AND CHECK CONNECTION LINE FROM U3 TO J5

NO

TROUBLE IN CABLE OR LCD MODULE

CHECK U12, U30J5 PIN13.3V?

NO

YES

YES

YES

YES

3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN1

NO RASTER(OSD IS NOT DISPLAYED)

U9PIN31 IS 65MHz CLOCK?PIN27 IS 48KHz H-SYNC?PIN28 IS 60Hz V-SYNC?IS PULSE APPEARED

AT SIGNAL PINS?

- 16 -

CHECK U2, U24

U3 POWER PIN

3.3V?

NO

1. CHECK PC2. CHECK SIGNAL CABLE

& D-SUB CONNECTOR LINE

CHECKR,G,B INPUT?

U3 PIN 87, 91, 95

NO

CHECK H-SYNC LINE(D-SUB→U6 →U3

PIN150)

CHECKH-SYNC INPUT

U3 PIN 150?

NO

YES

YES

YES

NO RASTER(OSD IS DISPLAYED)

4. NO RASTER (OSD IS DISPLAYED) – gmZAN1

- 17 -

CHECK SPEAKERCHECK SPEAKER

ASS’Y?NO

CHECK JACK(J7)& AUDIO CORD

AUDIO PCBCHECK INPUT SIGNAL

U3(TDA7449)PIN7,8?

NO

CHECK MAINU3(MICOM)→AUDIO J3

→U3(TDA7449)

CHECKIIC LINE

NO

YES

YES

YES

YES

CHECK U3(TDA7449)

CHECKINPUT SIGNALU1(TDA7496L)

PIN4,9?

NO

CHECK U1(TDA7496L)

CHECKOUTPUT SIGNAL

U1(TDA7496L)PIN14,17?

NO

NO SOUND

5. NO SOUND

YES

SCHEMATIC DIAGRAM

- 31 -

1. GMZAN1

- 32 -

2. LVDS

- 33 -

3. MICOM

- 34 -

4. POWER

- 35 -

5. CONNECTOR & JACKS

- 36 -

6. AUDIO

- 37 -

7. CONTROL KEY