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SERVICE MANUAL
INDUSTRIAL MONITOR LMU-TK15A4 (Without Touch Panel) LMU-TK15A4T (With Touch Panel) (GENERAL)
PRODUCT CODE NO. LMU-TK15A4 1 938 102 24 LMU-TK15A4T 1 938 102 28
REFERENCE NO. SM 920009 REFERENCE NO. SM 920010
PRODUCT CODE NO.193810224 PRODUCT CODE NO.193810228
INDEX
PRECAUTIONS ----------------------------------------------------------------------------------1,MAIN SPECIFICATION ---------------------------------------------------------------------2, TROUBLE SHOOTING ---------------------------------------------------------------------3, MAINTENANCE 3-1 LMU-TK15A4 --------------------------------------------------------------------------- 6 3-2 LMU-TK15A4T ------------------------------------------------------------------------- 7 4, BLOCK DIAGRAM ---------------------------------------------------------------------------- 8 5, CONNECTION DIAGRAM -----------------------------------------------------------------6, TABLE OF SIGNAL NAME ----------------------------------------------------------------7, EXPLODED VIEW AND PARTS LIST 7-1 Exploded View -----------------------------------------------------------------------7-2 Parts List LMU-TK15A4 --------------------------------------------------------------------------- 13 LMU-TK15A4T ------------------------------------------------------------------------- 14 8, APPENDEX ------------------------------------------------------------------------------------15 12 9 10,11
Page 2
3 4,5
Refer to the separate user's guide for instruction.
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PRECAUTIONS
Placement precautions
l l l Avoid placing the unit in humid or dusty places, or where it will be exposed to excessive heat (direct sunlight, heaters, etc.) Do not step on or set anything on the AC cord. DAMAGE TO THE AC CORD IS A SAFETY RISK AND CAN CAUSE A FIRE. Do not connect the unit to the same AC 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. l Keep 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 l l Avoid bending, kinking or damaging the AC power cord. 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. Do not remove any parts that are held in place with screws. (The unit does not contain any user serviceable items.) l l Maintain 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. A 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.
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1. MAIN SPECIFICATION
Model Name
Display Panel Type Screen Size Pixel Pitch Pixel Format Brightness Response Time Contrast Viewing Angle (minimum) Back Light Colors Video Control System Input Signal Video Sync.Type/Level Synchronization Horizontal Frequencies Vertical Touch panel Type Electrical Resolution Communication Physical Input Video Signal Serial Power Supply Operating Temperature Humidity Model Name Input Output 15pin mini D-Sub 9pin mini D-Sub DC Jack operating : 5° to 40° Storage : -20° to 60° 30% - 85% RH (No Condensation) GI40-US1225 AC115-240V 1.0A-0.55A, 50-60Hz DC 12V 2.5A 28W max. 30W max. 5W in Energy Saving mode 385(W) x 308(D) x 46(H) mm 385(W) x 309(D) x 54(H) mm 3.7 kg 4.2 kg AC Adapter, Power Cord, RGB AC Adapter, Power Cord, RGB cable, OSD control box, User's cable, Serial cable, OSD control Guide box, Touch Ware CD-ROM, User's Guide
LMU-TK15A4
LMU-TK15A4T
TFT 15.0" 0.297×0.297 mm 1,024×768 250cd/m2 typ. 40ms 350 : 1 typ. Left & Right :±70° Up : 55° Down : 65° CCFL × 2 16.77million Analog RGB 0.7Vp-p 75 ohm Separate TTL 24.8k - 60.2kHz 56 - 75Hz Capacitive 10bit (1,024x1,024) Bi-directional asynchronous RS232C serial communication
Environment Power Supply (AC Adapter)
Power Supply Consumption Dimensions Weight Accessories
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2. TROUBLESHOOTING
Check the following for troubles of LCD monitor.
No. Symptom Check Points Treatments Class
1
2
3
Check AC outlet, AC cord, DC 1 Is the Power "ON" to a LCD Monitor ? Jack and Power switch for a LCD monitor Check the Power for a 2 Is the Power "ON" to a Computer ? Computer Check the connection of a signal 3 Is a signal cable connected securely ? cable Be out of standing by condition, 4 Is a computer standing by ? by operating to a computer Disconnected a signal cable ? or Bent Ensure the connection of a 5 a terminal pin ? signal cable Replace an AC Adapter with the 6 Is an AC Adapter defective? new one No Picture with Back Is the wire harness between Inverter Check the connection of wire light OFF 7 PCB and a LCD module secured firmly harness ? Is the wire harness between main PCB Check the connection of wire 8 and Inverter PCB secured firmly ? harness Is the wire harness between main PCB Check the connection of wire 9 and DC IN PCB secured firmly ? harness Replace a LCD module with the 10 Is the LCD module defective ? new one Replace an Inverter unit with the 11 Is the Inverter unit defective ? new one Is the display circuit on main PCB Replace the main PCB with the 12 defective ? new one Is the Power Supply circuit on main Replace the main PCB with the 13 PCB defective ? new one Be out of standing by condition, 1 Is a computer standing by ? by operating to a computer Press any key or touch the Is a screen saver programming 2 mouse, to end the screen saver running ? No Picture with program Back light ON Is the computer's signal timing not Adjust the computer's signal 3 agreeable to the LCD's specification ? timing, if possible Is the Image Processing circuit on Replace the main PCB with the 4 main PCB defective ? new one Is the wire harness between main PCB Ensure the connection of wire 1 and LCD module secured firmly ? harness White/Grey on Replace a LCD module with the whole 2 Is the LCD module defective ? new one screen(Nothing on screen) Is the Image Processing unit circuit on Replace the main PCB with the 3 main PCB defective ? new one
A A A A B C C C C C C C C A A B C C C C
A It is possible to treated by end-user B It might be possible to treat by end-user in some case. C It must be treated by Professional Technical Staff
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No.
Symptom
Check Points
Treatments
Class
4
Screen's display range is incorrect
Is the adjustment for screen performed Adjust the screen correctly correctly ? Is the output level on image from a Check the specification of a 2 computer not agreeable to LCD's computer specification ? Set the size of screen 3 Is the size of screen set correctly ? again(refer to User's Manual for computer) Is the adjustment for screen performed 1 Adjust the screen correctly correctly ? Check the connection of a signal 2 Is a signal cable connected securely ? cable 1 3 Is a sigil cable extended ? Is the output level on image from a 4 computer not agreeable to LCD's specification ? Is the Image Processing circuit on 5 main PCB defective ? Don't extend a signal cable Check the specification of a computer
A B
A A A A B C A C C
5
Screen is distorted
6
Part of colors (R/G/B) is not displayed. Black line appears in vertically
Replace the main PCB with the new one Check the connection of a signal 1 Is a signal cable connected securely ? cable Is the connection between main PCB Ensure the connector of wire 2 and a LCD module securely ? harness Is the Image Processing circuit on Replace the main PCB with the 3 main PCB defective ? new one
A It is possible to treated by end-user B It might be possible to treat by end-user in some case. C It must be treated by Professional Technical Staff
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3. MAINTENANCE
3-1 LMU-TK-15A4
(1) Disassembling the major components Cabinet 1. Unscrew to secure the cabinet(8-position) 2. Pull the cabinet upward to remove it LCD module 1. Unscrew to secure the LCD module(4-position) 2. Pull the LCD module up, and pull two connectors out from inverter unit 3. Disconnect two cables from the main PCB Inverter Unit 1. Unscrew to secure the Inverter Unit(4-position) 2. Disconnect the cable from the main PCB Main PCB 1. Pull a RGB signal cable out 2. Unscrew to secure the main PCB(5-position) 3. Disconnect the cables on the main PCB(6-position) (one cable has already been disconnected) / two connectors from LCD module / one connector from the Switch 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) Connector PCB 1. Unscrew to secure the connector PCB(2-position) 2. Disconnect the cable from the main PCB VR PCB 1. Unscrew to secure the VR PCB(2-position) 2. Disconnect the cable from the main PCB DC-IN PCB 1. Unscrew to secure the DC-IN PCB(2-position) 2. Disconnect two cables, one is from power switch and another one is From the main PCB Power Switch 1. Remove the power switch, while pressing the hock of the power switch
(2)
(3)
(4)
(5)
(6)
(7)
(8)
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3-2 LMU-TK-15A4T (1)
Disassembling the major components Cabinet 1. Unscrew to secure the cabinet(8-position) 2. Pull the cabinet upward to remove it LCD Panel 1. Unscrew to secure the LCD panel(4-position) 2. Pull the LCD panel and touch panel up, and pull two connectors out from inverter unit 3. Disconnect two cables from the main PCB 4. Unscrew to secure the earth terminal(1-position) 5. Disconnect the cable on the main PCB 6. Disconnect the cable on the touch controller PCB Inverter Unit 1. Unscrew to secure the inverter unit(4-position) 2. Disconnect the cable from the main PCB Main PCB 1. Pull a RGB signal cable out 2. Unscrew to secure the main PCB(5-position) 3. Disconnect the cables on the main PCB(7-position) (two cables has already been disconnected) / two connectors from LCD panel / one connector from the Switch PCB / one connector from the VR PCB / one connector from the DC-IN PCB / one connector from the Inverter PCB / one connector from the Touch Controller PCB 4. Unscrew to secure the bracket for RGB connector(2-position) Touch Controller 1. Unscrew to secure the touch controller PCB(2-position) 2. Disconnect a serial cable Serial Cable (Connector and Cable with bracket) 1. Unscrew to secure the bracket for serial cable(2-position) Connector PCB 1. Unscrew to secure the connector PCB(2-position) 2. Disconnect the cable from the main PCB VR PCB 1. Unscrew to secure the VR PCB(2-position) 2. Disconnect the cable from the main PCB DC-IN PCB 1. Unscrew to secure the DC-IN PCB(2-position) 2. Disconnect two cables, one is from power switch and another one is from the main PCB Power Switch 1. Remove the power switch, while pressing the hook of the power switch
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
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For LMU-TK150A4T only
DB 9
TXD RXD
TOUCHSCREEN CONTROLLER CAPACITIVE TOUCHSCREEN SENSOR
4. BLOCK DIAGRAM
Main PCB (SANDDUNE2)
MICRO CONTROLLER
ROM
DB15
Vsync
-8TM TM
Hsync
SAMPLING PLL
TFT XGA LCD PANEL
Red Green Blue
VIDEO PRE-AMP
CHEETAH3 8-bit, 135-MHz ADCs PLLS Enhanced IP scaling with line buffers Anti-smear, anti-color bleed Şlters Edge enhancement Şlter SmartSet processing SureSync processing Frame rate conversion OSD with memory Gamma correction look-up table Color enhancement/dithering PWMs TFT panel timing engine CRC PANEL CONTROL
POWER SUPPLY
N.C. N.C.
N.C. N.C.
Touch Screen Controller
CTS TXD RTS RXD N.C. DTR DSR DCD GND 5 9 4 8 3 7 2 6 1
1 6 2 7 3 8 4 9 5
1 6 2 7 3 8 4 9 5
N.C.
RTS RXD TXD CTS GND N.C. N.C.
GND DDCLK GND VSYNC GND HSYNC GND DDDA N.C. N.C. BLUE GND GREEN N.C. RED
8 15 7 14 6 13 5 12 4 11 3 10 2 9 1
Connector P.C.B
1 2 3 4 5
1 2 3 4 5
MENU SEL DOWN UP GND N.C N.C N.C
1 2 3 4 5 6 7 8
Analogue Interface P.C.B SANDDUNE2
Brightness Volume P.C.B
5. Connection Diagram
External OSD Switch
Power Switch
1 2 3 4 5
VR1 VRC VR2 N.C N.C
1 2 3
CN201
CN202
1 2
1 2
+12V GND
1 2
- 10 JP1 CN7
1 2 3 4 5 6 7 12 11 10 9 8 7 6 5 4 3 2 1 LL UL LR UR BACK VCC(+12V) CHASSIS GND POWER GND N.C. N.C. N.C. N.C. 1 2
D-SUB 9PIN VGA Mini D-SUB 15pin CN502
SERIAL PORT
Personal Computer
P6 P2 CN501 P5 CN6 VR1 P7
P8
Capacitive
Touch Screen
8 15 7 14 6 13 5 12 4 11 3 10 2 9 1 GND DDCLK GND VSYNC GND HSYNC GND DDDA N.C. N.C. BLUE GND GREEN N.C. RED
P9 P10
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
GND DCLK GND DENA GND VD GND HD GND NC GND BO7 BO6 BO5 BO4 GND BO3 BO2 BO1 BO0 GND GO7 GO6 GO5 GO4 GND GO3 GO2 GO1 GO0 GND RO7 RO6 RO5 RO4 GND RO3 RO2 RO1 RO0 VCC VCC TEST TEST TEST
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
TFT 15-inch Liquid Crystal Display
DC IN P.C.B
J201
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
GND BE7 BE6 BE5 BE4 GND BE3 BE2 BE1 BE0 GND GE7 GE6 GE5 GE4 GND GE3 GE2 GE1 GE0 GND RE7 RE6 RE5 RE4 GND RE3 RE2 RE1 RE0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
P3
1 2 3 4 5 +12V GND VR1 VR2 ON(=5V) 1 2 3 4 5
HOT1
HOT1
COLD1 N.C.
COLD1 N.C.
1 2 3
1 2 3
AC Adapter AC Plug
CN1
CN2
CN3
Inverter Unit
SINV-75
6. TABLE OF SIGNAL NAME
Symbol RED GREEN BLUE DDDA(ID1) HSYNC VSYNC DDCK(ID3) BE7 BE6 BE5 BE4 BE3 BE2 BE1 BE0(EVEN) GE7 GE6 GE5 GE4 GE3 GE2 GE1 GE0(EVEN) RE7 RE6 RE5 RE4 RE3 RE2 RE1 RE0(EVEN) DCLK DENA VD HD BO7 BO6 BO5 BO4 BO3 BO2 BO1 BO0 GO7 GO6 GO5 GO4 GO3 GO2 GO1 Signal Name RED/Analog Video Signal GREEN/Analog Video Signal BLUE/Analog Video Signal DDC Data Horizontal Synchronizing Signal Vertical Synchronizing Signal DDC Data Clock BLUE Data[MSB]-Even BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data[LSB]-Even GREEN Data[MSB]-Even GREEN Data GREEN Data GREEN Data GREEN Data GREEN Data GREEN Data GREEN Data[LSB]-Even RED Data[MSB]-Even RED Data RED Data RED Data RED Data RED Data RED Data RED Data[LSB]-Even Data Clock Data Enable Vertical Synchronizing Signal Horizontal Synchronizing Signal BLUE Data[MSB]-Odd BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data BLUE Data[LSB]-Odd GREEN Data[MSB]-Odd GREEN Data GREEN Data GREEN Data GREEN Data GREEN Data GREEN Data Location P6-1 P6-2 P6-3 P6-12 P6-13 P6-14 P6-15 P10-2 P10-3 P10-4 P10-5 P10-7 P10-8 P10-9 P10-10 P10-12 P10-13 P10-14 P10-15 P10-17 P10-18 P10-19 P10-20 P10-22 P10-23 P10-24 P10-25 P10-27 P10-28 P10-29 P10-30 P9-2 P9-4 P9-6 P9-8 P9-12 P9-13 P9-14 P9-15 P9-17 P9-18 P9-19 P9-20 P9-22 P9-23 P9-24 P9-25 P9-27 P9-28 P9-29 Notes
POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY +
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Symbol GO0 RO7 RO6 RO5 RO4 RO3 RO2 RO1 RO0 TEST TEST TEST +12V VR1,2 ON=5V VR1,2 VRC MENU SEL DOWN UP LED R LED G
Signal Name GREEN Data[LSB]-Odd RED Data[MSB]-Odd RED Data RED Data RED Data RED Data RED Data RED Data RED Data[LSB]-Odd Test Signal Out(*) Test Signal Out(*) Test Signal Out(*) for Output Voltage (+) for Contrast Volume for Back-Light Control Brightness Control Brightness Control Menu Key Input Select Key Input Down Key Input Up Key Input LED/RED, Control Signal LED/GREEN, Control Signal
Location P9-30 P9-32 P9-33 P9-34 P9-35 P9-37 P9-38 P9-39 P9-40 P9-43 P9-44 P9-45 P3-1 P3-3,4 P3-5 P5-1,3 P5-2 P2-1 P2-2 P2-3 P2-4 P2-6 P2-8
Notes POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY + POLARITY +
H: Light ON
* : This terminal must be opened at System-side.
TouchScreen Controller (for LMU-TK15A4T only)
RTS RXD TXD CTS DCD DTR GND DSR GND UR LR UL LL Repuest To Send Receive Data Transmit Data Clear To Send Data Carrier Detect Data Terminal Ready Signal ground Data Set Ready Chassis (earth) ground Upper right (UR) corner Lower right (LR) corner Upper left (UL) corner Lower left (LL) corner JP1-1 JP1-2 JP1-3 JP1-4 NC NC NC NC NC JP2-9 JP2-10 JP2-11 JP2-12
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7. EXPLODED VIEW AND PARTS LIST
7-1 Exploded View
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CAUTION
Parts marked as Are very important to secure safety. In case of replacement, it is required to use designted parts for safety.
7-2. Parts List
7-2-1 LMU-TK15A4
REF NO.
1 17 11 3 6 12 16 15 2 13 7 9 10 8
PART No. OUTER 632 890 7397 INDIVIDUAL 632 861 5414 632 889 7827 632 889 7834 661 000 9587 632 862 2696 632 603 0998 632 298 2376 632 607 4824 632 567 2588 ACCESSORY 632 890 8363 632 890 8370 CABINET1 661 001 5564 632 892 1010 CHASSIS 661 001 5526 CHASSIS ELC. 661 001 5540 661 001 5588 661 001 5595 661 001 5557 632 872 9494 661 001 5601 632 890 5010 PC BOARD 1 661 001 5632 PC BOARD 3 661 001 5649 PC BOARD 4 661 001 5663 PC BOARD 6 661 001 5670
DESCRIPTION OUTER CARTON PAD, TOP ACCESSORY CASE PAD PAD, CORNER POLYETHYLENE BAG, 400X550 POLYETHYLENE BAG, 130X500 POLYETHYLENE BAG, 120X320 POLYETHYLENE BAG, L 180X270 POLYETHYLENE BAG, 200X300 INSTRUCTION MANUAL, ENGLISH INSTRUCTION MANUAL, GERMAN TOP LID ASS'Y RATING PLATE BOTTOM LID ASS'Y, 15A4 LIQUID CRYSTAL DIS. ASS'Y, 15.0" DC-AC INVERTER ASS'Y POWER SWITCH ASS'Y AC ADAPTER ASS'Y VGA CABLE, 1.5M FFC ASS'Y REMOTE CONTROLLER ASS'Y PW BOARD ASS'Y, MAIN PW BOARD ASS'Y, VR PW BOARD ASS'Y, DC-IN PW BOARD ASS'Y, CN
Q'ty 1 1 1 1 8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
NOTES
FOR MONITOR FOR AC ADAPTER FOR CONTROLL BOX FOR USER'S GUIDE FOR RGB CABLE
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CAUTION
Parts marked as Are very important to secure safety. In case of replacement, it is required to use designted parts for safety.
7-2-2 LMU-TK15A4T
REF NO.
1 17 11 4 6 12 16 5 15 14 2 13 7 9 10 8
PART No. OUTER 632 890 7397 INDIVIDUAL 632 861 5414 632 889 7827 632 889 7834 661 000 9587 632 862 2696 632 603 0998 632 298 2376 632 607 4824 632 567 2588 632 607 4824 ACCESSORY 632 890 8363 632 890 8370 632 867 2325 CABINET1 661 001 5571 632 892 1003 CHASSIS 661 001 5519 CHASSIS ELC. 661 001 5533 661 001 5588 661 001 5595 661 001 5557 661 001 5625 632 835 1060 632 866 8397 661 001 5618 632 890 5010 PC BOARD 1 661 001 5632 PC BOARD 3 661 001 5649 PC BOARD 4 661 001 5663 PC BOARD 6 661 001 5670
DESCRIPTION OUTER CARTON PAD, TOP ACCESSORY CASE PAD PAD, CORNER POLYETHYLENE BAG, 400X550 POLYETHYLENE BAG, 130X500 POLYETHYLENE BAG, 120X320 POLYETHYLENE BAG, L 180X270 POLYETHYLENE BAG, 200X300 POLYETHYLENE BAG, L 180X270 INSTRUCTION MANUAL, ENGLISH INSTRUCTION MANUAL, GERMAN CD-ROM DISK, TOUCHWARE TOP LID ASS'Y RATING PLATE BOTTOM LID ASS'Y, 15A4T LIQUID CRYSTAL DIS. ASS'Y, TOUCH DC-AC INVERTER ASS'Y POWER SWITCH ASS'Y AC ADAPTER ASS'Y SERIAL CONTROLLER ASS'Y CABLE, VGA SERIAL CABLE, 1.8M FFC ASS'Y REMOTE CONTROLLER ASS'Y PW BOARD ASS'Y, MAIN PW BOARD ASS'Y, VR PW BOARD ASS'Y, DC-IN PW BOARD ASS'Y, CN
Q'ty 1 Stamp T 1 1 1 8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
NOTES
FOR MONITOR FOR AC ADAPTER FOR CONTROLL BOX FOR USER'S GUIDE FOR RGB CABLE FOR SERIAL CABLE
- 14 -
APPENDIX Version of Firmware The Version of Firmware is displayed on screen.
Turn the Power Switch to `OFF'. While pressing of the [SELECT] ( [ENTER] ) button, turn the Power Switch to `ON'.
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