LG L1530SSN Schematic

COLOR MONIT OR

SER VICE MANUAL

Website:http://biz.LGservice.com

E-mail:http://www.LGEservice.com/techsup.html

CAUTION

BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

CHASSIS NO. : CL-66

MODEL: L1530SSNT (L1530SSNTN.AL**G,AN**EF)

L1530SBNT (L1530SBNTN.AL**G,AN**EF)

( ) **Same model for Service

*To apply the Genesis ZAN3SL Chip.

MENU

SET/AUTO

LightView

-

+

CONTENTS

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

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

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

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

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

DESCRIPTION OF BLOCK DIAGRAM...................11

SPECIFICATIONS

1. LCD CHARACTERISTICS

Type : TFT Color LCD Module
Size : 326.5(H) x 253.5(V) x 11.2(D)
Pixel Pitch : 0.297mm x 0.297mm
Color Depth : 6bits(with FRC)/ 16M colors
Active Video Area : 15.0inch
Surface Treatment : Anti-Glare, Hard Coating (3H)
Backlight Unit : 2CCFL
Opraating Mode : Transmissive mode, Normally white
Electrical Interface : LVDS

2. OPTICAL CHARACTERISTICS

2-1. Viewing Angle by Contrast Ratio ≥ 10

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

TROUBLESHOOTING GUIDE .............................. 15

WIRING DIAGRAM ................................................19

EXPLODED VIEW...................................................20

REPLACEMENT PARTS LIST ...............................22

SCHEMATIC DIAGRAM......................................... 24

4. POWER SUPPLY

4-1. Power

100-240V~, 50/60Hz 0.6A

4-2. Power Consumption

MODE

POWER ON (NORMAL)

STAND-BY

SUSPEND

DPM OFF

POWER S/W OFF

H/V SYNC

ON/ON
OFF/ON
ON/OFF

OFF

-

VIDEO

POWER CONSUMPTION

ACTIVE

OFF
OFF
OFF

-

less than 25 W

less than 1 W

less than 1 W
less than 1 W
less than 1 W

LED COLOR

GREEN
AMBER
AMBER
AMBER

OFF

Left : 55° min. 65° typ. Right : 55° min. 65° typ.
Top : 40° min. 45° typ. Bottom : 50° min. 55° typ.

2-2. Luminance

: 200(min.), 250(typ.) (Full white pattern, 0.73V)

2-3. Contrast Ratio : 300(min.), 400(typ.)

3. SIGNAL (Refer to the Timing Chart)

3-1. Sync Signal

1) Type :

2) Input Voltage Level :

Separate Sync.

Low=0~0.8V, High=2.1~5.5V

3) Sync Polarity : Positive or Negative

3-2. Video Input Signal

1) Type : R, G, B Analog

2) Voltage Level : 0~0.7 V
a) Color 0, 0 : 0 Vp-p
b) Color 7, 0 : 0.35 Vp-p
c) Color 15, 0 : 0.7 Vp-p

3) Input Impedance : 75 Ω

3-3. Operating Frequency

Horizontal : 30 ~ 63kHz
Vertical : 56 ~ 75Hz

5. ENVIRONMENT

5-1. Operating Temperature : 10°C~35°C (50°F~95°F)
5-2. Operating Humidity : 10%~80%
5-3. MTBF :

50,000 HRS with 90% Confidence level

Lamp Life : 40,000 Hours (Min.)

6. DIMENSIONS (with TILT/SWIVEL)

Width : 368mm (14.01'')
Depth : 355mm (5.97'')
Height : 105mm (14.16'')

7. WEIGHT (with TILT/SWIVEL)

Net. Weight : 3.6kg (8.82 lbs)
Gross Weight : 5.0kg (12.13 lbs)

-2 -

PRECAUTION

1.5 Kohm/10W

To Instrument's
exposed
METALLIC PARTS

Good Earth Ground
such as WATER PIPE,
CONDUIT etc.

AC Volt-meter

WARNING FOR THE SAFETY-RELATED COMPONENT.

• There are some special components used in LCD
monitor that are important for safety. These parts are

marked on the schematic diagram and the
replacement parts list. It is essential that these critical

parts should be replaced with the manufacturer’s
specified parts to prevent electric shock, fire or other
hazard.

• Do not modify original design without obtaining written
permission from manufacturer or you will void the
original parts and labor guarantee.

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.

WARNING

BE CAREFUL ELECTRIC SHOCK !

• If you want to replace with the new backlight (CCFL) or
inverter circuit, must disconnect the AC adapter
because high voltage appears at inverter circuit about
650Vrms.

• Handle with care wires or connectors of the inverter
circuit. If the wires are pressed cause short and may
burn or take fire.

Leakage Current Hot Check Circuit

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

• Make certain that treatment person’s body are
grounded through wrist band.

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

• The module not be exposed to the direct sunlight.

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

• If the surface of panel become dirty, please wipe it off
with a softmaterial. (Cleaning with a dirty or rough cloth
may damage the panel.)

CAUTION

Please use only a plastic screwdriver to protect yourself
from shock hazard during service operation.

-3 -

SERVICING PRECAUTIONS

CAUTION: Before servicing receivers covered by this

service manual and its supplements and addenda, read
and follow the SAFETY PRECAUTIONS on page 3 of this
publication.
NOTE: If unforeseen circumstances create conflict
between the following servicing precautions and any of the
safety precautions on page 3 of this publication, always
follow the safety precautions. Remember: Safety First.

General Servicing Precautions

1. Always unplug the receiver AC power cord from the AC
power source before;
a. Removing or reinstalling any component, circuit

board module or any other receiver assembly.

b. Disconnecting or reconnecting any receiver electrical

plug or other electrical connection.

c. Connecting a test substitute in parallel with an

electrolytic capacitor in the receiver.
CAUTION: A wrong part substitution or incorrect
polarity installation of electrolytic capacitors may
result in an explosion hazard.

d. Discharging the picture tube anode.

2. Test high voltage only by measuring it with an
appropriate high voltage meter or other voltage
measuring device (DVM, FETVOM, etc) equipped with
a suitable high voltage probe.
Do not test high voltage by "drawing an arc".

3. Discharge the picture tube anode only by (a) first
connecting one end of an insulated clip lead to the
degaussing or kine aquadag grounding system shield
at the point where the picture tube socket ground lead
is connected, and then (b) touch the other end of the
insulated clip lead to the picture tube anode button,
using an insulating handle to avoid personal contact
with high voltage.

4. Do not spray chemicals on or near this receiver or any
of its assemblies.

5. Unless specified otherwise in this service manual,
clean electrical contacts only by applying the following
mixture to the contacts with a pipe cleaner, cotton­tipped stick or comparable non-abrasive applicator;
10% (by volume) Acetone and 90% (by volume)
isopropyl alcohol (90%-99% strength)
CAUTION: This is a flammable mixture.
Unless specified otherwise in this service manual,
lubrication of contacts in not required.

6. Do not defeat any plug/socket B+ voltage interlocks
with which receivers covered by this service manual
might be equipped.

7. Do not apply AC power to this instrument and/or any of
its electrical assemblies unless all solid-state device
heat sinks are correctly installed.

8. Always connect the test receiver ground lead to the
receiver chassis ground before connecting the test
receiver positive lead.
Always remove the test receiver ground lead last.

9. Use with this receiver only the test fixtures specified in

this service manual.

CAUTION: Do not connect the test fixture ground strap
to any heat sink in this receiver.

Electrostatically Sensitive (ES) Devices

Some semiconductor (solid-state) devices can be
damaged easily by static electricity. Such components
commonly are called Electrostatically Sensitive (ES)
Devices. Examples of typical ES devices are integrated
circuits and some field-effect transistors and
semiconductor "chip" components. The following
techniques should be used to help reduce the incidence of
component damage caused by static by static electricity.

1. Immediately before handling any semiconductor
component or semiconductor-equipped assembly, drain
off any electrostatic charge on your body by touching a
known earth ground. Alternatively, obtain and wear a
commercially available discharging wrist strap device,
which should be removed to prevent potential shock
reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with
ES devices, place the assembly on a conductive
surface such as aluminum foil, to prevent electrostatic
charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or
unsolder ES devices.

4. Use only an anti-static type solder removal device.
Some solder removal devices not classified as "anti­static" can generate electrical charges sufficient to
damage ES devices.

5. Do not use freon-propelled chemicals. These can
generate electrical charges sufficient to damage ES
devices.

6. Do not remove a replacement ES device from its
protective package until immediately before you are
ready to install it. (Most replacement ES devices are
packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable
conductive material).

7. Immediately before removing the protective material
from the leads of a replacement ES device, touch the
protective material to the chassis or circuit assembly
into which the device will be installed.
CAUTION: Be sure no power is applied to the chassis
or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged
replacement ES devices. (Otherwise harmless motion
such as the brushing together of your clothes fabric or
the lifting of your foot from a carpeted floor can
generate static electricity sufficient to damage an ES
device.)

-4 -

General Soldering Guidelines

1. Use a grounded-tip, low-wattage soldering iron and
appropriate tip size and shape that will maintain tip

temperature within the range or 500。F to 600。F.

2. Use an appropriate gauge of RMA resin-core solder
composed of 60 parts tin/40 parts lead.

3. Keep the soldering iron tip clean and well tinned.

4. Thoroughly clean the surfaces to be soldered. Use a
mall wire-bristle (0.5 inch, or 1.25cm) brush with a
metal handle.
Do not use freon-propelled spray-on cleaners.

5. Use the following unsoldering technique
a. Allow the soldering iron tip to reach normal

temperature.

(500。F to 600。F)
b. Heat the component lead until the solder melts.
c. Quickly draw the melted solder with an anti-static,

suction-type solder removal device or with solder

braid.

CAUTION: Work quickly to avoid overheating the

circuitboard printed foil.

6. Use the following soldering technique.
a. Allow the soldering iron tip to reach a normal

temperature (500。F to 600。F)

b. First, hold the soldering iron tip and solder the strand

against the component lead until the solder melts.

c. Quickly move the soldering iron tip to the junction of

the component lead and the printed circuit foil, and
hold it there only until the solder flows onto and
around both the component lead and the foil.
CAUTION: Work quickly to avoid overheating the
circuit board printed foil.

d. Closely inspect the solder area and remove any

excess or splashed solder with a small wire-bristle
brush.

IC Remove/Replacement

Some chassis circuit boards have slotted holes (oblong)
through which the IC leads are inserted and then bent flat
against the circuit foil. When holes are the slotted type,
the following technique should be used to remove and
replace the IC. When working with boards using the
familiar round hole, use the standard technique as
outlined in paragraphs 5 and 6 above.

Removal

1. Desolder and straighten each IC lead in one operation
by gently prying up on the lead with the soldering iron
tip as the solder melts.

2. Draw away the melted solder with an anti-static
suction-type solder removal device (or with solder
braid) before removing the IC.

Replacement

1. Carefully insert the replacement IC in the circuit board.

2. Carefully bend each IC lead against the circuit foil pad
and solder it.

3. Clean the soldered areas with a small wire-bristle
brush. (It is not necessary to reapply acrylic coating to
the areas).

"Small-Signal" Discrete Transistor
Removal/Replacement

1. Remove the defective transistor by clipping its leads as
close as possible to the component body.

2. Bend into a "U" shape the end of each of three leads
remaining on the circuit board.

3. Bend into a "U" shape the replacement transistor leads.

4. Connect the replacement transistor leads to the
corresponding leads extending from the circuit board
and crimp the "U" with long nose pliers to insure metal
to metal contact then solder each connection.

Power Output, Transistor Device
Removal/Replacement

1. Heat and remove all solder from around the transistor
leads.

2. Remove the heat sink mounting screw (if so equipped).

3. Carefully remove the transistor from the heat sink of the
circuit board.

4. Insert new transistor in the circuit board.

5. Solder each transistor lead, and clip off excess lead.

6. Replace heat sink.

Diode Removal/Replacement

1. Remove defective diode by clipping its leads as close
as possible to diode body.

2. Bend the two remaining leads perpendicular y to the
circuit board.

3. Observing diode polarity, wrap each lead of the new
diode around the corresponding lead on the circuit
board.

4. Securely crimp each connection and solder it.

5. Inspect (on the circuit board copper side) the solder
joints of the two "original" leads. If they are not shiny,
reheat them and if necessary, apply additional solder.

Fuse and Conventional Resistor
Removal/Replacement

1. Clip each fuse or resistor lead at top of the circuit board
hollow stake.

2. Securely crimp the leads of replacement component
around notch at stake top.

3. Solder the connections.
CAUTION: Maintain original spacing between the
replaced component and adjacent components and the
circuit board to prevent excessive component
temperatures.

-5 -

Circuit Board Foil Repair

Excessive heat applied to the copper foil of any printed
circuit board will weaken the adhesive that bonds the foil
to the circuit board causing the foil to separate from or
"lift-off" the board. The following guidelines and
procedures should be followed whenever this condition is
encountered.

At IC Connections

To repair a defective copper pattern at IC connections use
the following procedure to install a jumper wire on the
copper pattern side of the circuit board. (Use this
technique only on IC connections).

1. Carefully remove the damaged copper pattern with a
sharp knife. (Remove only as much copper as
absolutely necessary).

2. carefully scratch away the solder resist and acrylic
coating (if used) from the end of the remaining copper
pattern.

3. Bend a small "U" in one end of a small gauge jumper
wire and carefully crimp it around the IC pin. Solder the
IC connection.

4. Route the jumper wire along the path of the out-away
copper pattern and let it overlap the previously scraped
end of the good copper pattern. Solder the overlapped
area and clip off any excess jumper wire.

At Other Connections

Use the following technique to repair the defective copper
pattern at connections other than IC Pins. This technique
involves the installation of a jumper wire on the
component side of the circuit board.

1. Remove the defective copper pattern with a sharp
knife.
Remove at least 1/4 inch of copper, to ensure that a
hazardous condition will not exist if the jumper wire
opens.

2. Trace along the copper pattern from both sides of the
pattern break and locate the nearest component that is
directly connected to the affected copper pattern.

3. Connect insulated 20-gauge jumper wire from the lead
of the nearest component on one side of the pattern
break to the lead of the nearest component on the
other side.
Carefully crimp and solder the connections.
CAUTION: Be sure the insulated jumper wire is
dressed so the it does not touch components or sharp
edges.

-6 -

TIMING CHART

VIDEO

SYNC

B

C

E

A

D

MODE

1 H(Pixels) + 25.175 31.468 KHz 800 640 16 96 48 640 x 350

2 H(Pixels) - 28.322 31.468 KHz 900 720 17 108 55 720 x 400

3 H(Pixels) - 25.175 31.469 KHz 800 640 16 96 48 640 x 480

4 H(Pixels) - 30.24 35.00 KHz 864 640 64 64 96 640 x 480

5 H(Pixels) - 31.5 37.861 KHz 832 640 24 40 128 640 x 480

6 H(Pixels) - 31.5 37.50KHz 840 640 16 64 120 640 x 480

7 H(Pixels) + 36.0 35.156 KHz 1024 800 24 72 128 800 x 600

8 H(Pixels) + 40.0 37.879 KHz 1056 800 40 128 88 800 x 600

9 H(Pixels) + 50.0 48.077 KHz 1040 800 56 120 64 800 x 600

10 H(Pixels) + 49.5 46.875 KHz 1056 800 16 80 160 800 x 600

11 H(Pixels) - 57.2832 49.725 KHz 1152 832 32 64 224 832 x 624

12 H(Pixels) - 65 48.363 KHz 1344 1024 24 136 160 1024 x 768

13 H(Pixels) - 75 56.476 KHz 1328 1024 24 136 144 1024 x 768

14 H(Pixels) + 78.75 60.023 KHz 1312 1024 16 96 176 1024 x 768

H / V

V(Lines) - 70.0 Hz 449 350 37 2 60

V(Lines) + 70.0 Hz 449 400 13 2 34 (TEXT)

V(Lines) - 60.0 Hz 525 480 10 2 33

V(Lines) - 66.67 Hz 525 480 3 3 39

V(Lines) - 72.8 Hz 520 480 9 3 28

V(Lines) - 75.0 Hz 500 480 1 3 16

V(Lines) + 56.25 Hz 625 600 1 2 22

V(Lines) + 60.3 Hz 628 600 1 4 23

V(Lines) + 72.188 Hz 666 600 37 6 23

V(Lines) + 75.0 Hz 625 600 1 3 21

V(Lines) - 74.55 Hz 667 624 1 3 39 (MAC)

V(Lines) - 60.0 Hz 806 768 3 6 29

V(Lines) - 70.0 Hz 806 768 3 6 29

V(Lines) + 75.0 Hz 800 768 1 3 28

Sync

Polarity

Dot

Clock

Frequency

Total

Period

( E )

Video

Active

Time ( A )

Front

Porch

( D )

Sync

Duration

( C )

Blanking

Time

( B )

Resolution

-7 -

DISASSEMBLY

# 1 # 4

1. Put a soft cushion on the floor and lay the stand on its
side so that the base is accessible.

# 2 # 5

2. Hold the set while folding the latch and take out the stand
base.

# 3 # 6

4. Cover the panel with your hand so that it is not scratched.
Then, pull up the cabinet corner side.

5-1. Disassemble the cabinet.
5-2. Hold the control PCB as shown in the figure and gently

pull it out.

3-1. Push the cover upward and remove it.
3-2. Unscrew the four screws.

6. Push up the back cover as shown in the figure and pull
out the chassis assembly so that the latch is untied.

-8 -

# 7 # 9

7. Push the shield cap upward and disassemble it. 9. Pull out the link cable while pushing up the main frame.

# 8

8. Pull out the cable.

-9 -

BLOCK DIAGRAM

Panel

3.3V VMOD

LVDS

LVDS

Transmitter

Scaling

Switch

OSD

(System)

3.3V

MOD-ON

EEPROM

(System)

+

MCU

5V

3.3 V

1.8 V

Regulator

gmZAN3SL

ADC

3.3 V

Analog(R/G/B)

PLL

1.8 V

D-Sub

To Key Control

LIPS

BRT-CTL

INV-CTL

5V

Inverter

Power +

5V

-10 -

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 80MHz.
This part consists of the Scaler, ADC and TMDS receiver .
The Scaler gets the video signal converted analog to digital, interpolates input to 1024 X768 resolution signal and
outputs 8-bit R, G, B signal to transmitter.

2. Power Part.

This part consists of the one 5V, one 3.3V, and one 1.8V regulators to convert power which is provided 5V in
Power board.

3.3V is provided for LCD panel and inverter, 5V is provided for micom.
Also, 5V is converted 3.3V and 1.8V by regulator. Converted power is provided for IC in the main board.

3. MICOM Part.

This part consists of EEPROM IC which stores control data, Reset IC and the Micom.
The Micom distinguishes polarity and frequency of the H/V sync are supplied from signal cable.
The controlled data of each modes is stored in EEPROM.

-11 -

LIPS Board Block Diagram

50 ~ 60Hz

100KHz

OUTPUT RECTIFIER

AND FILTER

LINE

EMI

COMPONENTS

INPUT RECTIFIER

AND FILTER

HVDC

ENERGY

TRANSFER

100 ~ 240V

PWM
CONTROL
CIRCUIT

PHOTO

-COUPLER
ISOLATION

SIGNAL

COLLENT-

ION

PRIMARY SECONDARY

Operation description_LIPS

1. EMI components.

This part contains of EMI components to comply with global marketing EMI standards like FCC,VCCI CISPR, the
circuit included a line-filter, across line capacitor and of course the primary protection fuse.

12V

5V

GND

2. Input rectifier and filter.

This part function is for transfer the input AC voltage to a DC voltage through a bridge rectifier and a bulk capacitor.

3. Energy Transfer.

This part function is for transfer the primary energy to secondary through a power transformer.

4. Output rectifier and filter.

This part function is to make a pulse width modulation control and to provide the driver signal to power switch,to
adjust the duty cycle during different AC input and output loading condition to achieve the dcoutput stabilized, and
also the over power protection is also monitor by this part.

5. Photo-Coupler isolation.

This part function is to feed back the dc output changing status through a photo transistor to primary controller to
achieve the stabilized dc output voltage.

6. Signal collection.

This part function is to collect the any change from the dc output and feed back to the primary through photo
transistor.

-12 -

ADJUSTMENT

Windows EDID V1.0 User Manual

Operating System: MS Windows 98, 2000, XP
Port Setup: Windows 98 => Don’t need setup

Windows 2000, XP => Need to Port Setup.

This program is available to LCD Monitor only.

1. Port Setup
a) Copy “UserPort.sys” file to

“c:\WINNT\system32\drivers” folder

b) Run Userport.exe

c) Remove all default number
d) Add 300-3FF

2. EDID Read & Write

1) Run WinEDID.exe

2) Edit Week of Manufacture, Year of Manufacture,
Serial Number
a) Input User Info Data
b) Click “Update” button
c) Click “ Write” button

e) Click Start button.
f) Click Exit button.

-13 -

SERVICE OSD

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

2) Wait for about 5 seconds and press MENU, POWER switch with 1 second interval.

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

a) Auto Color : W/B balance and Automatically sets the gain and offset value.
b) NVRAM INIT : EEPROM initialize.(24C08)
c) CLEAR ETI : To initialize using time.
d) AGING : Select Aging mode(on/off).
e) R/G/B-9300K : Allows you to set the R/G/B-9300K value manually.

f) R/G/B-6500K : Allows you to set the R/G/B-6500K value manually.
g) R/G/B-Offset : Allows you to set the R/G/B-Offset value manually.(Analog Only)
h) R/G/B-Gain : Allows you to set the R/G/B-Gain value manually.(Analog Only)

i) PANEL : To select applied module.

Video Signal

Generator

Control Line

A

IBM
Compatible PC

PARALLEL PORT

Not used

RS232C

C

PARALLEL

Power inlet (required)

220

VGS

A

MONITOR

POWER

ST

V-SYNC

B

F

Power Select Switch
(110V/220V)

Power LED

E

ST Switch

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

5V

15

OFF ON

F

10

5

11

6

1

B

69

5

1

C

OFF

13

25

5V

4.7K

4.7K

74LS06

ON

5V

E

74LS06

4.7K

1

14

Figure 1. Cable Connection

-14 -

NO POWER

(POWER INDICATOR OFF)

TROUBLESHOOTING GUIDE

1. NO POWER

1

1

CHECK J707 VOLTAGE

PIN5, PIN6 (5V)?

YES

CHECK

U801 PIN 1& U803 PIN

3 VOLTAGE

(5V) ?

YES

CHECK

Q803 PIN 3(3.3V) &

U803 PIN 4 (1.8V)?

YES

CHECK KEY CONTROL

CONNECTOR ROUTINE

NO

NO

NO

CHECK POWER BOARD,
AND FIND OUT A SHORT

POINT AS OPENING

EACH POWER LINE

CHECK U801.

CHECK 5VR LINE

(OPEN CHECK)

NO PROBLEM

1

IS U201 PIN88

2

VOLTAGE REPEATED

AS PULSE

SHAPE ?

YES

CHECK IIC LINE

CONNECTION (U501, U502)

Waveforms

1 2

J707-#5, 6 / U801-#1/U803-#3 U201-#88

NO

CHECK U201

VCC, XTAL, RESET

-15 -

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

NO RASTER

(OSD IS NOT DISPLAYED)

1

PIN5, PIN 6

5V?

J707 PIN2

2.5V?

J707 PIN1

5V?

CHECK

PULSE AS

CONTACTING SCOPE

PROBE TO CAUTION LABEL.

(CONTACT PROBE TO

CAUTION LABEL.

CAN YOU SEE PULSE

AT YOUR

SCOPE?

J707

YES

YES

YES

NO

NO

NO

NO

CHECK LIPS

CHECK MICOM INV ON/OFF

PORT. (U501 PIN9)

1. CONFIRM BRIGHTNESS
OSD CONTRL STATE.

2. CHECK MICOM DIM-ADJ
PORT(U501 PIN41)

LIPS

3 4

REPLACE CCFL LAMP

IN THE LCD MODULE

Waveforms

1

J707-#5, 6 / U801-#1/U803-#3

YES

3 4

J707-#2 J707-#2

Inverter Off

Micom Port check

J705 Inverter output

-16 -

Inverter On

Micom Port check

J705 Inverter output

J705 Inverter output

3. NO RASTER (OSD IS NOT DISPLAYED) – gmZAN3SL

NO RASTER

(OSD IS NOT DISPLAYED)

POWER PINS 3.3V?

2

6

OSCILLATE AS

PIN43 IS 48KHz H-SYNC?

PIN44 IS 60Hz V-SYNC?

IS PULSE APPEARED

AT SIGNAL PINS?

U501 PIN8

U201

YES

U201

PIN88

12MHZ?

YES

U501

YES

5V?

NO

NO

NO

NO

CHECK U803, U801

1. CHECK PIN88

SOLDERING CONDITION

2. CHECK X501

3. TROUBLE IN U201

CHECK CONNECTION LINE

FROM U201 TO U501

CHECK 5VR LINE

2

U201-#88

TROUBLE IN CABLE

OR LCD MODULE

Waveforms

YES

6

U501-#43, 44

-17 -

4. NO RASTER (OSD IS DISPLAYED) – gmZAN3SL

NO RASTER

(OSD IS DISPLAYED)

U201

POWER PIN99(1.8V)

PIN33(3.3V)?

YES

CHECK

R,G,B INPUT?

U201 PIN 70,74,77

YES

CHECK

H-SYNC INPUT

U201 PIN 95?

YES

CHECK

V-SYNC INPUT

U201 PIN 96?

YES

NO

NO

NO

NO

CHECK U803, U801

1. CHECK PC

2. CHECK SIGNAL CABLE
& D-SUB CONNECTOR
LINE

CHECK H-SYNC LINE

→U501 →U201

(D-SUB

PIN95)

CHECK V-SYNC LINE

(D-SUB→U501 →U201

PIN96)

TROUBLE IN

LCD MODULE

-18 -

M

MST9151

Main Board

Power Board

Control Board

Connector Ass’y P/N:

6631T11012R

WIRING DIAGRAM

Connector Ass’y P/N:

6631T20024C

-19 -

130

050

150

140

EXPLODED VIEW

030

120

060

090

040

110

070

070

080

100

020

010

-20 -

EXPLODED VIEW PARTS LIST

Ref. No.

010

020

030

040
050

060
070

080

090

100
110

120

130

140
150

Part No.

3091TKL097V CABINET ASSEMBLY, L1530 BRAND L088 L088 (PC-ABS) Q-CKD-SILVER-USA
3091TKL097K CABINET ASSEMBLY, L1530 BRAND 3090TKL088 "B"-CKD-SILVER-Brazil,Mexico,Panama
3091TKL153C CABINET ASSEMBLY, L1530 BRAND L088 PC+ABS CKD-BLACK-USA
3091TKL097S CABINET ASSEMBLY, L1530S BRAND 3090TKL088 "C"-CKD-BLACK-Panama
6304FLP146B

or 6304FLP146A

6304FLP113A
3809TKL067G BACK COVER ASSEMBLY, L1530S L072 (PC-ABS) F-CKD-USA
3809TKL067C BACK COVER ASSEMBLY, L1530 3808TKL072 "A"-CKD-Brazil,Mexico,Panama
3043TKK146B TILT SWIVEL ASSEMBLY, L1530 .. "A"-CKD
3043TKK145K TILT SWIVEL ASSEMBLY, L1530 .. "D"-CKD-SILVER

3043TKK145Q TILT SWIVEL ASSEMBLY, L1530S .. (BK-VER)"G"-CKD-BLACK

4951TKS136J METAL ASSEMBLY, FRAME "A"-CKD
4814TKK263A SHIELD, INVERTER CAP(L1530)
4814TKK263B SHIELD, INVERTER CAP_"A"CKD

6871TPT271X

or 6871TPT282E
or 6871TPT271N PWB(PCB) ASSEMBLY,POWER, M-CHASSIS 15INCH POWER TOTAL LIEN CHANG C306 68PF

3313TL5101E MAIN TOTAL ASSEMBLY, L1530SN GMZAN3SL MX CKD - E BRAND CL-66-LPL

3313TL5127E MAIN TOTAL ASSEMBLY, L1530SN KNPAEFM BRAND CL-66-LPL TN

3313TL5101F MAIN TOTAL ASSEMBLY, L1530SN GMZAN3SL SP CKD - E BRAND CL-66-LPL
6631T11012R CONNECTOR ASSEMBLY, 20P H-H 140MM UL20276 PANEL LINK CABLE LM567D
6871TST541E PWB(PCB) ASSEMBLY,SUB, L1930BM CONTROL TOTAL BRAND MX CKD-LPL
6871TST804E PWB(PCB) ASSEMBLY,SUB, L1730B LGEMX CONTROL TOTAL BRAND LF-LPL TN

6871TST541H PWB(PCB) ASSEMBLY,SUB, L1530SM CONTROL TOTAL BRAND SP CKD-LPL

3550TKK446F COVER, L1530S BACK DOOR_"E"-CKD-SILVER

3550TKK446H COVER, L1530S BACK DOOR (BK) "C"-CKD-BLACK
3550TKK452D COVER, LXX30 STAND REAR COVER_"B"-CKD-SILVER
3550TKK452E COVER, LXX30S STAND REAR COVER (BK) "C"-CKD-BLACK
6850TD9004G CABLE,D-SUB, UL20276-9C(5.8MM) DT 1800MM BLACK(9930) SONY DM

6410TUW008A POWER CORD, LP31+LS13 LONGWELL UL/CSA 1870MM WALL CD/PB FREE BLACK

or 174-206M POWER CORD, SP305 IS14 I-SHENG UL/CSA 1870MM WALL BLACK

LCD(LIQUID CRYSTAL DISPLAY), LM150X08-A4K8 LG PHILPS TFT COLOR PSWG,LVDS,16MS,SS S D-IC , COST COMPENSATION
LCD(LIQUID CRYSTAL DISPLAY), LM150X08-A4K8 LG PHILPS TFT COLOR PSWG,LVDS,16MS,SS S D-IC
LCD(LIQUID CRYSTAL DISPLAY), LM150X08-A4K3 LG PHILPS TFT COLOR PSWG,LVDS,16MS,HYNIX/HITACHI

PWB(PCB) ASSEMBLY,POWER, M-CHASSIS 15INCH POWER TOTAL LIEN CHANG C306 68PF 450V
PWB(PCB) ASSEMBLY,POWER, M-CHASSIS 15INCH C306 68PF 450V POWER TOTAL LIEN CHANG PB FREE

Description

-21 -

REPLACEMENT PARTS LIST

CAUTION: BEFORE REPLACING ANY OF THESE COMPONENTS,

READ CAREFULLY THE SAFETY PRECAUTIONS IN THIS MANUAL.

* NOTE : S SAFETY Mark

AL ALTERNATIVE PARTS

DATE: 2005. 3. 21.

*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION

MAIN BOARD

CAPACITORS

C204 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y

C205 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C206 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C207 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C208 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C210 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C213 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C214 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C215 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C216 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C217 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C218 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C219 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C220 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C221 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C222 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C223 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C224 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C225 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C226 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C227 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C231 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C232 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C233 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C234 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C503 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C504 0CE106CK610 "10UF SHL,SD 50V 20% BULK FL"
C506 0CC030CK01A 3PF 1608 50V 0.25 PF R/TP NP
C507 0CC180CK41A 18PF 1608 50V 5% R/TP NP0
C508 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C701 0CK105CD56A 1UF 1608 10V 10% R/TP X7R
C708 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C709 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C717 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C718 0CC101CK41A 100PF 1608 50V 5% R/TP NP0
C720 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C721 0CC680CK41A 68PF 1608 50V 5% R/TP NP0
C727 0CK105CD56A 1UF 1608 10V 10% R/TP X7R
C732 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C733 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C734 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C735 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C801 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C819 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C820 0CE107EF628 "100UF KMG,RD 16V 20% FM2.5 T"
C821 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C829 0CK103CK51A 0.01UF 1608 50V 10% R/TP B(Y
C831 0CE107EF628 "100UF KMG,RD 16V 20% FM2.5 T"
C832 0CE107EF628 "100UF KMG,RD 16V 20% FM2.5 T"
C833 0CK105CD56A 1UF 1608 10V 10% R/TP X7R
C834 0CC102CK41A 1000PF 1608 50V 5% R/TP NP0

DATE: 2005. 3. 21.

*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION

DIODEs

D701 0DSIH00018A "ENKMC2837-T112,LF ISAHAYA R/"
D702 0DSIH00018A "ENKMC2837-T112,LF ISAHAYA R/"
D706 0DSIH00018A "ENKMC2837-T112,LF ISAHAYA R/"
ZD701 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.
ZD702 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.
ZD703 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.
ZD704 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.
ZD705 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.
ZD711 0DZKE00138A KDZ5.6V KEC R/TP USC 0.2W 5.

ICs

Q502 0IKE704200H KIA7042AP TO-92 TP 4.2 VOLT
U201 0IPRPGN016B "GMZAN3SL-BD-LF GENESIS 128P,"
U501 0IZZTSZ535A L1530SN GMZAN3SL MICOM ASSY-LPL
U501 0IZZTSZ701A L1530SN ZAN3SL MICOM ASSY P-LPL TN
U502 0ISG240860B "M24C08WMN6T(P),LF SGS-THOMSO"
U801 0IPMGKE011A KIA78D33F KEC DPAK R/TP 3.3V
U803 0IPMGSG019A "LD1117S18TR,LF STM SOT223 R/"

TRANSISTOR

U802 0TFVI80067A SI3865BDV(E3) VISHAY R/TP TS
Q503 0TRIH80001A "RT1C3904-T112,LF ISAHAYA R/T"
Q504 0TRIH80001A "RT1C3904-T112,LF ISAHAYA R/T"
Q505 0TRIH80001A "RT1C3904-T112,LF ISAHAYA R/T"
Q703 0TR390609FA KST3906-MTF TP SAMSUNG SOT2
Q704 0TR390609FA KST3906-MTF TP SAMSUNG SOT2

RESISTORs

R201 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R202 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R203 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R208 0RJ1200D677 120 OHM 1/10 W 5% 1608 R/TP
R209 0RJ1200D677 120 OHM 1/10 W 5% 1608 R/TP
R210 0RJ1200D677 120 OHM 1/10 W 5% 1608 R/TP
R211 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R213 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R214 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R220 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R221 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R222 0RJ1004D677 1000000 OHM 1/10 W 5% 1608 R
R506 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R508 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R514 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R515 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R516 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R518 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R520 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R521 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R522 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R523 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP

- 22 -

DATE: 2005. 3. 21.

*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION

DATE: 2005. 3. 21.

*S *AL LOC. NO. PART NO. DESCRIPTION / SPECIFICATION

R534 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R535 0RJ3301D677 3.3K OHM 1/10 W 5% 1608 R/TP
R537 0RJ3301D677 3.3K OHM 1/10 W 5% 1608 R/TP
R541 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R542 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R543 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R544 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R545 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP
R547 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP
R548 0RJ0332D677 33 OHM 1/10 W 5% 1608 R/TP
R549 0RJ0332D677 33 OHM 1/10 W 5% 1608 R/TP
R555 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R557 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R560 0RJ4702D677 47000 OHM 1/10 W 5% 1608 R/T
R561 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R566 0RJ1002D677 10K OHM 1/10 W 5% 1608 R/TP
R701 0RJ0752D677 75 OHM 1/10 W 5% 1608 R/TP
R703 0RJ0752D677 75 OHM 1/10 W 5% 1608 R/TP
R706 0RJ0752D677 75 OHM 1/10 W 5% 1608 R/TP
R708 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP
R709 0RJ1001D677 1K OHM 1/10 W 5% 1608 R/TP
R716 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R717 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R721 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP
R722 0RJ1000D677 100 OHM 1/10 W 5% 1608 R/TP
R723 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP
R724 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP
R726 0RJ1002D677 10K OHM 1/10 W 5% 1608 R/TP
R727 0RJ1002D677 10K OHM 1/10 W 5% 1608 R/TP
R728 0RJ1502D677 15K OHM 1/10 W 5% 1608 R/TP
R735 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R737 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R744 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R747 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R749 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R770 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R771 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R775 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP
R779 0RJ0682D677 68 OHM 1/10 W 5% 1608 R/TP
R780 0RJ2001D677 2K OHM 1/10 W 5% 1608 R/TP
R781 0RJ2001D677 2K OHM 1/10 W 5% 1608 R/TP
R782 0RJ0471D677 4.7 OHM 1/10 W 5% 1608 R/TP
R803 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP
R811 0RJ2202D677 22K OHM 1/10 W 5% 1608 R/TP
R812 0RJ5600D677 560 OHM 1/10 W 5% 1608 R/TP
R813 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R814 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R815 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R816 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R817 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R818 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R819 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R820 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R821 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R822 0RJ0472D677 47 OHM 1/10 W 5% 1608 R/TP
R827 0RJ0000D677 0 OHM 1/10 W 5% 1608 R/TP

OTHERs

X501 6212AA2004A HC-49U TXC 12.0MHZ +/- 30 PP

CONTROL BOARD

SW2 140-058E SKHV10910B LGEC NON 12V 20A

SW3 140-058E SKHV10910B LGEC NON 12V 20A
SW6 140-058E SKHV10910B LGEC NON 12V 20A
SW7 140-058E SKHV10910B LGEC NON 12V 20A
SW8 140-058E SKHV10910B LGEC NON 12V 20A
LED1 0DLLT0340AA LITEON LTL-14CDJNHBP1 BK GRE
C1 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
C2 0CK104CK56A 0.1UF 1608 50V 10% R/TP X7R
Q1 0TR390409AE FAIRCHILD KST3904(LGEMTF) TP
Q2 0TR390409AE FAIRCHILD KST3904(LGEMTF) TP
R1 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R2 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R3 0RJ2001D677 2K OHM 1/10 W 5% 1608 R/TP
R4 0RJ2001D677 2K OHM 1/10 W 5% 1608 R/TP
R5 0RJ4701D677 4.7K OHM 1/10 W 5% 1608 R/TP
R7 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP
R8 0RJ4700D677 470 OHM 1/10 W 5% 1608 R/TP

- 23 -

2 5

U201-#88

SCHEMATIC DIAGRAM

1. SCALER

# 1

L1515/L1715

ZAN3SL

52

- 24 -

6

U501-#43, 44

2. MICOM

# 2

L1515/L1715

MICOM

- 25 -

6

1.5K(17")

1

J707-#5,6/U801-#1/U803-#3

3. POWER

390

# 3

L1515/L1715

POWER

1

390

390 390

1

- 26 -

Inverter On

Inverter On

Micom Port check

J705 Inverter output

4

J707-#2

4. CONNECTOR & JACKS

3

J707-#2

Inverter Off

Inverter Off

Micom Port check

J705 Inverter output

1

J707-#5,6/U801-#1/U803-#3

1

43

15K

# 4

L1515/L1715

CONNECTOR & JACKS

- 27 -

Mar. 2005

P/NO : 3828TSL094X Printed in Korea