PRECAUTIONS ---------------------------------------------------------------------------------- 2
1, MAIN SPECIFICATION --------------------------------------------------------------------- 3
2, TROUBLE SHOOTING ---------------------------------------------------------------------- 4,5
3, MAINTENANCE
Disassembling the major components ------------------------------------------------------6
4, BLOCK DIAGRAM ---------------------------------------------------------------------------- 7
5, CONNECTION DIAGRAM ------------------------------------------------------------------ 8
6, TABLE OF SIGNAL NAME ----------------------------------------------------------------- 9,10
7, EXPLODED VIEW AND PARTS LIST
7-1Exploded View ---------------------------------------------------------------------------11
7-2 Parts List ------------------------------------------------------------------------------------- 12-14
8, APPENDIX ------------------------------------------------------------------------------------- 15
Refer to the separate volume user’s guide for instruction.
-1-
Page 3
PRECAUTIONS
Placement precautions
lAvoid placing the unit in humid or dusty places, or where it will be exposed to excessive heat
(direct sunlight, heaters, etc.)
lDo not step on or set anything on the AC cord.
DAMAGE TO THE AC CORD IS A SAFETY RISK AND CAN CAUSE A FIRE.
lDo not connect the unit to the same AC as outlet with appliances that generate large amounts of
interference (such as heaters with thermostats, appliances with motors, etc.). It is best to use a
completely separate electrical outlet.
lKeep the unit away from water. If water accidentally enters the unit, unplug the AC power cord
immediately. DO NOT PLUG IN THE UNIT AGAIN.
Handling precautions
l Avoid bending, kinking or damaging the AC power cord.
l Never insert or remove the power cord with wet hands. Also, be sure to hold cord by the plug when
removing it from the outlet.
lDo not remove any parts that are held in place with screws. (The unit does not contain any user
serviceable items.)
lMaintain standard room temperature (5oC to 40 oC, or 41oF to 104 oF) during use. Do not subject the
unit to shock or vibration. Do not move the unit while it is in use.
lA rapid increase in room temperature in cool weather can cause condensation to from inside the unit.
If this occurs, wait at least 15 minutes after turning the unit on before attempting to operate it.
-2-
Page 4
1.MAIN SPECIFICATION
Display
Liquid Crystal Panel:TFT
Display Size:12.1''
Pixel Configuration:800 x 600
Pixel Pitch:0.308 x 0.308 mm
2
Brightness:200 cd/m
Response Time:50 ms
Contrast:150 : 1 typ.
Angle of Visibility:Left 60 degrees,Right 60 degrees, Up 30 degrees, Down 45 degrees.
Type:Resistive (LMU-TK12AT) Capacitive (LMU-TK12ATC)
Electrical Resolution:10bit (1024 x 1024)
Communication:Bi-directional asynchronous RS-232C serial communication
Physical
Input:Video15pin mini D-SUB
Serial9pin D-SUB
PowerDC jack
Dimensions(Exclude Stand)
Weight:2 kg (LMU-TK12AT) 2.2kg (LMU-TK12ATC)
Operating Conditions:Operating TemperatureOperating: 5°C to 40°C
Power Supply:
/AC Adapter:
Power Consumption:20 W (5W in Energy Saving mode)
Model
Input
Output
: 295 (W) x 233 (D) x 42 (H) mm
Storage: –20°C to 60°C
Humidity:30% to 85% RH (no condensation)
LMU-TK12AT
GI40-US1225
100-240V 50-60Hz
12v 2.6A
LMU-TK12ATC
GI40-US1225
100-240VAC 1.0A-0.55A, 50-60Hz
DC 12v 2.5A
- 3 -
Page 5
2. TROUBLE SHOOTING
The "TROUBLESHOOTING for LCD Monitor" is described in below. Please refer to the manual "TROUBLE SHOOTING
for Touch-Screen" in CD-ROM.
No.SYMPTOMCHECK POINTSTREATMENTS
1No Picture with Power
Indicator OFF
2No Picture with Power
Indicator in Amber
3No Picture with Power
Indicator in Green
1 Is the Power to a LCD monitor "ON"?Check AC outlet, AC cord, DC Jack and
Power switch for a LCD monitor
2 Is an AC Adapter defective?Replace an AC Adapter with the new
one
3 Is the wire harness between main PCB
and DC-IN PCB secured firmly ?
4 The Power Supply circuit on main PCB
may be defective
1 Is the Power to a computer "ON"?Check AC outlet, AC cord, DC Jack and
2 Is a computer standing by ?Be out of standing by condition, by
3 The Image Processing circuit on main
PCB may be defective
1 Is a screen saver programming
running ?
2 Is a signal cable connected securely ?Check the connection of a signal cable
3 Disconnected a signal cable ? or Bent a
terminal pin ?
Check the connection
Replace the main PCB with the new one
Power switch for a computer
operating to a computer
Replace the main PCB with the new one
Press any key or touch the mouse, to
end the screen saver program
Replace a signal cable with the new one
4No Picture with Power
Indicator blinking in
Green
4 Is the computer's signal timing not
agreeable to the LCD's specification ?
5 Is the wire harness between Inverter
PCB and a LCD module secured
firmly ?
6 Is the wire harness between main PCB
and Inverter PCB secured firmly ?
7 The Brightness control volume may be
defective
8 The LCD module may be defectiveReplace a LCD module with the new
9 The Inverter unit may be defectiveReplace an Inverter unit with the new
10 The display circuit on main PCB may
be defective ?
1 Is a computer standing by ?Be out of standing by condition, by
2 Is a signal cable connected securely ?Check the connection of a signal cable
3 Disconnected a signal cable ? or Bent a
terminal pin ?
Adjust the computer's signal timing, if
possible
Check the connection of wire harness
Check the connection of wire harness
Replace the Volume PCB with new one,
and check the screen
one
one
Replace the main PCB with the new one
operating to a computer
Replace a signal cable with the new one
It is possible to treated by end-user
It must be treated by Professional Technical Staff
It might be possible to treat by end-user in some case.
- 4 -
Page 6
No.SYMPTOMCHECK POINTSTREATMENTS
5White/Grey on whole
screen
(Nothing on screen)
6Screen's display range
is incorrect
7Screen is distorted
8Part of colors(R/G/B) is
not displayed
Black line is appeared
vertically
1 Is the wire harness between main PCB
and LCD module secured firmly ?
2 Is the LCD module defective ?Replace a LCD module with the new
3 Is the main PCB defective ?Replace the main PCB with the new one
1 Is the adjustment for screen performed
correctly ?
2 Is the output level on image from a
computer not agreeable to LCD's
specification ?
3 Is the size of screen set correctly ?Set the size of screen again(refer to
1 Is the adjustment for screen performed
correctly ?
2 Is a signal cable connected securely ?Check the connection of a signal cable
3 Is a sig nal cable extended ?Don't extend a signal cable
4 Is the output level on image from a
computer not agreeable to LCD's
specification ?
5 The Image Processing circuit on main
PCB may be defective
1 Is a signal cable connected securely ?Check the connection of a signal cable
2 Is the connection between main PCB
and a LCD module securely ?
3 The Image Processing circuit on main
PCB may be defective
Check the connection of wire harness
one
Adjust the screen correctly
Check the specification of a computer
User's Manual for computer)
Adjust the screen correctly
Check the specification of a computer
Replace the main PCB with the new one
Check the connector
Replace the main PCB with the new one
It is possible to treated by end-user
It must be treated by Professional Technical Staff
It might be possible to treat by end-user in some case
- 5 -
Page 7
3 MAINTENANCE
Disassembling the major components
(1) Cabinet
1. Unscrew to secure the cabinet (8-position)
2. Pull the cabinet upward to remove it
(2) LCD Panel and Touch Panel
1. The Touch panel is on the LCD panel. The clearance between the Touch Panel and
the bottom case are filled with 8 rubber pieces. Pull the right side of the Touch panel
upward carefully, then turn it over at the left side of the bot t om case.
2. Unscrew to secure the LCD panel (4-position)
3. Pull the LCD panel up carefully. Disconnect the FPC from main PCB, and pull the
connector out to inverter unit.
4. Unscrew to secure the earth terminal (1-position)
5. Disconnect the cable on the main PCB (Orange, Grey)
6. Disconnect the cable on the Touch controller PCB
(3) Inverter Unit
1. Unscrew to secure the Inverter Unit (3-position)
2. Disconnect the cable from the main PCB
(4) Main PCB
1. Pull the RGB signal cable out
2. Unscrew to secure the main PCB (4-position)
3. Disconnect the cables on the main PCB (6-position)
/ Two cables have already been disconnected
/ One connector from the Joint PCB
/ One connector from the VR PCB
/ One connector from the DC-IN PCB
/ One connector from the Inverter PCB
4. Unscrew to secure the bracket for RGB Connector (2-position)
(5) Touch Controller PCB
1. Unscrew to secure the Touch controller PCB (2-position)
2. Disconnect the serial cable
(6) Serial Cable (Connector and Cable with bracket)
1. Unscrew to secure the bracket for serial cable (2-position)
(7) Joint PCB
1. Unscrew to secure the Joint PCB (2-position)
2. Disconnect the cables from the main PCB and the LED PCB
(8) VR PCB
1. Unscrew to secure the VR PCB (2-position)
2. Disconnect the cable to the main PCB
(9) DC-IN PCB
1. Unscrew to secure the DC-IN PCB (2-position)
2. Disconnect one cable from Power Switch, and another cable from the main PCB
(10) Power Switch
1. Remove the Power Switch, while pressing the hook of the Power Swit ch
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol in the parts list and the schematic
diagram designate components in whitch safety can be of special significance. When replacing a component identified with use only the replacement
parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual.
Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before
returning the product to the customer.
Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty
NOTES: 1. Part orders must contain Model Number, Part Number and Description.
2. Ordering quantity of screws and resistors must be multiple of 10 pcs.
3. Regular type resistor and capacitor are omitted. Check the schematic diagram for these values.
- 12 -
Page 14
[LMU-TK12ATC(K)/SS]
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol in the parts list and the schematic
diagram designate components in whitch safety can be of special significance. When replacing a component identified with use only the replacement
parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual.
Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before
returning the product to the customer.
Ref. No. PART No. DESCRIPTION Q'ty Ref. No. PART No. DESCRIPTION Q'ty
2 661 021 2468 BOTTOM LID ASSY 1
3 632 868 5615 BASE, CUSHION 2
411 001 8702 SCR BIN 3X6 2
CHASSIS - DC-IN
411 030 8803 SCR BIN 2.5X6,CHASSIS-VR 2
411 030 6403 SCR BIN 2X5 3
CHASSIS - INV.
411 030 6403 SCR BIN 2X5 2
CHASSIS - JOINT
411 001 8702 SCR BIN 3X6 2
CHASSIS - CONTROL
411 001 8702 SCR BIN 3X6 3
CHASSIS - MAIN
411 008 0402 WASHER OUT TW 3 1
PCB2 632 843 3469 PW BOARD ASS'Y, VR 1
PCB3 632 873 4146 PW BOARD ASS'Y, DC IN 1
PCB4 632 869 5256 PW BOARD ASS'Y, LED 1
PCB5 632 869 5263 PW BOARD ASS'Y, JOINT 1
VR P.C.B. ASSEMBLY
DC IN P.C.B. ASSEMBLY
LED P.C.B. ASSEMBLY
JOINT P.C.B. ASSEMBLY
NOTES: 1. Part orders must contain Model Number, Part Number and Description.
2. Ordering quantity of screws and resistors must be multiple of 10 pcs.
3. Regular type resistor and capacitor are omitted. Check the schematic diagram for these values.
- 13 -
Page 15
[LMU-TK12ATC(K)/UK]
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol in the parts list and the schematic
diagram designate components in whitch safety can be of special significance. When replacing a component identified with use only the replacement
parts designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual.
Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before
returning the product to the customer.
!
!
NOTES: 1. Part orders must contain Model Number, Part Number and Description.
2. Ordering quantity of screws and resistors must be multiple of 10 pcs.
3. Regular type resistor and capacitor are omitted. Check the schematic diagram for these values.