SPECIFICATIONS 1. LCD CHARACTERISTICS Type : TFT Color LCD Module Size : 335.0(H) x 273.5(V) x 11.2(D) Pixel Pitch : 0.243mm x 0.243mm Color Depth : 8-bit, 16,777,216 colors Active Video Area : 15.7inch (39.88cm) (39.832diagnal 311mm x 284.8mm) Surface Treatment : Anti-Glare, Hard Coating (3H) Backlight Unit : Two-CCFL (Cold Cathode Fluorescent Lamp) 2. OPTICAL CHARACTERISTICS 2-1. Viewing Angle by Contrast Ratio ≥ 10 Left : 60° typ., 60° min. Right : 60° typ., 60° min. Top : 45° typ., 45° min. Bottom : 45° typ., 45° min. 2-2. Luminance : 200 cd/m typ. 2 2-3. Angle at Half Luminance Left : 45° min. Right : 45° min. Top : 45° min. Bottom : 45° min. 2-4. Contrast Ratio : 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=2.1~5.5V 3) Sync Polarity : Positive or Negative 3-2. Video Input Signal 1) Type 2) Voltage Level a) Color 0, 0 b) Color 7, 0 c) Color 15, 0 3) Input Impedance : R, G, B Analog : 0~0.714 V : 0 Vp-p : 0.467 Vp-p : 0.714 Vp-p : 75 Ω 3-3. Operating Frequency Horizontal Vertical : 30 ~ 80kHz : 56 ~ 85Hz 4. POWER SUPPLY 4-1. Power Adaptor Input Output : AC 100~240V, 50/60Hz 1.2A + : DC 24V 1.2A - 4-2. Power Consumption MODE H/V SYNC VIDEO POWER CONSUMPTION LED COLOR POWER ON (NORMAL) ON/ON ACTIVE less than 36 W GREEN STAND-BY OFF/ON OFF less than 3 W AMBER SUSPEND ON/OFF OFF less than 3 W AMBER DPM OFF OFF/OFF OFF less than 3 W AMBER POWER OFF - - less than 3 W OFF 5. ENVIRONMENT 5-1. Operating Temperature: 10°C~35°C (50°F~95°F) (Ambient) 5-2. Relative Humidity : 10%~80% (Non-condensing) 5-3. Altitude : 0~10,000ft (3,030m) 6. DIMENSIONS (with TILT/SWIVEL) Width Depth Height : 370.2mm (14.57'') : 134.0mm (5.27'') : 387.7mm (15.26'') 7. WEIGHT (with TILT/SWIVEL) Net. Weight Gross Weight : 4.5kg (9.92 lbs) : 6.8kg (14.99 lbs) SCHEMATIC DIAGRAM 1. INPUT SWITCHING - 44 - 2. AD9884 (PRE-AMP/PLL/ADC) - 45 - 3. VIDEO PROCESS - 46 - 4. MEMORY - 47 - 5. LVDS - 48 - 6. MICOM - 49 - 7. DC/DC CONVERTOR - 50 - 8. CONNECTOR & JACKS (BRAND) - 51 - 9. USB - 52 - 10. CONTROL/POWER KEY - 53 - WIRING DIAGRAM CN4 CN5 J801 J805 J807 J804 CN3 CN2 CN2 CN1 J3 J2 Connector Ass’y P/N: 6631T11010D - 10 - J1 BLOCK DIAGRAM - 13 - DESCRIPTION OF BLOCK DIAGRAM 1. Input signal switching part. This part switch H/V sync and analog video signal to be entered through Port1 and Port2 and output a selected H/V sync and analog video signal. 2. Pre-amp/ ADC / PLL 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 135MHz. 3. Video Controller Part. This part consists of the Scaler and frame buffers which converts frame rate of input signal to 60Hz frame rate. The Scaler gets the video signal converted analog to digital, interpolates input to 1280 X 1024 resolution signal and outputs 8-bit R, G, B signal to transmitter. 4. Display Data Transmitter Part. This part transmit digital signal from the Scaler to the receiver of module. 5. Power Part. This part consists of the DC/DC converter and several 3.3V regulators. The DC/DC converter coverts 12V to be entered power adapter to 5V. 5V, output of DC/DC converter, supply to the micom and 3.3V regulators. The output voltage of 3.3V regulator supply to IC of each part. 6. 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 mode is stored in EEPROM. 7. Inverter The inverter converts from 12V to AC 700V and drive back-light lamp of module. 8. USB USB part consists of Downstream/Upstream and USB Hub. A entered USB peripheral signal from Downstream transfer PC through USB Hub and Upstream. Or a entered PC signal from Upstream transfer USB peripheral through USB Hub and Downstream. - 14 - TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK U718 INPUT VOLTAGE (12V) ? NO TROUBLE IN ADAPTOR or INVERTER NO TROUBLE IN U718 NO TROUBLE IN U617 or X603 YES CHECK 5VST VOLTAGE (5V) ? YES CHECK U617’s PIN 6. IS THIS PIN OSCILLATED? YES TROUBLE SOMEWHERE ELSE - 16 - 2. NO RASTER NO RASTER CHECK J805 PIN 10 (12V) ? NO TROUBLE IN POWER ADATER YES CHECK J805 PIN 5 (5V) ? NO TROUBLE IN INVON PATTERN YES CHECK U617 PIN 42 H. PULSE ? NO TROUBLE IN U106, U105, U101, U109 YES CHECK U205 PIN 40 H.PULSE ? NO TROUBLE IN U102, U101, U109 NO TROUBLE IN U205 YES CHECK U205 PIN 117 H.PULSE? YES CHECK U205 PIN 115 AD CLOCK ? NO YES - 17 - TROUBLE IN U205 YES CHECK U307 PIN 246 H.PULSE ? NO CHECK HS-PLL PATTERN NO CHECK ADC-CLK PATTERN NO TROUBLE IN U307 NO TROUBLE IN U307 NO TROUBLE IN U307 YES CHECK U307 PIN 254 DOT CLOCK ? YES CHECK MEMORYCLK U410, U411, U412 PIN 35 ? YES CHECK U307 PIN 93, 94 DOT CLOCK ? YES CHECK U307 PIN 124 D26 (H.PULSE) ? YES - 18 - YES CHECK U513, U514 PIN 27 H.PULSE ? NO TROUBLE IN U307 NO TROUBLE IN U307 NO TROUBLE IN U307 NO TROUBLE IN U307 YES CHECK U513, U514 PIN 28 V.PULSE ? YES CHECK U513, U514 PIN 31 DOT CLOCK? YES CHECK U513, U514 PIN 30 H.PULSE? YES TROUBLE IN LCD MODULE - 19 - 3. NO CLOCK (CLOCK GENERATOR) NO DOT CLOCK CHECK U205 PIN 40 H. PULSE ? NO TROUBLE IN U101, U109, U105, U106 NO TROUBLE IN U729 NO TROUBLE IN U101, U109, U105, U106 NO TROUBLE IN U205 YES CHECK U205Vcc 3.3V ? YES CHECK U205 PIN 40 H. PULSE ? YES CHECK U205 PIN 115 CLOCK ? - 20 - 4. TROUBLE IN DPM TROUBLE IN DPM CHECK U109 PIN 1, 5 ? NO CHECK PC CPC IS NOT GOING INTP DPM OFF MODE YES CHECK U617 (MICOM) PIN 1, 42 (H/V INPUT) SIGNAL ? NO TROUBLE IN U109 YES CHECK U617 PIN 6 WAVEFORM (24MHz) ? NO TROUBLE IN X603 NO TROUBLE IN SIGNAL CABLE YES CHECK U617 PIN 26 (5V) ? YES TROUBLE IN PC - 21 - ADJUSTMENT All adjustment are thoroughly checked and corrected when the monitor leaves the factory, but sometimes several minor adjustment may be required. Adjustment should be following procedure and after warming up for a minimum of 10 minutes. 2. Adjustment for Factory Preset Mode 1) Select DIST. ADJ → FOS DEFAULT command and Enter 2) It will copy all factory default data to EEPROM automatically. • 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. 3. Adjustment for White Balance 1) Display color 0,0 pattern at Mode 15. 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 automatically adjusted and saved to the EEPROM. 5) Display color 15,0 pattern at Mode 15. 6) Select DRIVE CAL command and Enter. 7) 6500K and 9300K are automatically adjusted and saved to the EEPROM. 8) Select PRESET EXIT command and Enter. 1. Adjustment Start 1) Display any pattern at any Mode. 2) Run alignment program for LS882C on the IBM compatible PC. 3) Select EEPROM → ALL INIT command and Enter 4) This will make all data to default state 5) Select COMMAND → PRESET START command and Enter A 9 IBM Compatible PC Video Signal Generator 15 10 5 11 6 1 6 1 5 C 13 ed PARALLEL PORT us 2C F LE L No t RS 23 5V 14 ON RA L PA 5V Power inlet (required) ON R 220 WE VG CS T PO S MO NI TO R B E 4.7K 74LS06 E ST Switch B F V-Sync On/Off Switch (Switch must be ON.) Figure 1. Cable Connection - 15 - 4.7K 4.7K 5V OFF YN A Power Select Switch (110V/220V) Power LED V-S Control Line C 1 25 OFF 74LS06 DISASSEMBLY 3. INVERTER WIRE SHIELD & BACK COVER REMOVAL 1) Remove four screws (a). 2) Remove two Inverter Wire Shield. 3) Remove four screws (b). 4) Remove the Back Cover. 1. TILT/SWIVEL REMOVAL 1) Remove Hinge Cover. (Push the tilt cover both side). 2) Remove two screws (a). 3) Remove the Tilt/swivel. (a) (a) Inverter Wire Shield (a) (a) (b) 2. FRONT CABINET REMOVAL 1) Remove two screws (a). 2) Release ten latches (b). 3) Remove the Front Cabinet. Back Cover Front Cabinet (b) (b) (b) (b) (a) - 11 - 5. MAIN TOTAL ASS’Y REMOVAL 1) Disconnect CN2, CN3, CN4 and CN5. 2) Remove five screws (a). 3) Remove two Aluminium Tape (b). 4) Disconnect J805. 5) Remove Aluminium Tape (c). 6) Disconnect FPC Cable, Module Connector and Control PCB Connector. 7) Remove Main Total Ass’y and Inverter PCB Ass’y. 4. INVERTER SHIELD & REAR SHIELD REMOVAL 1) Remove sponge (a). 2) Remove two screws (b). 3) Remove the Inverter Shield. 4) Remove six screws (c). 5) Remove the Rear Frame. (b) Inverter Shield (c) (a) (c) (a) (c) Module Connector (b) (a) Control PCB Connector J805 Rear Frame (b) (a) CN5 CN4 CN3 - 12 - CN2 FPC Cable (c) CONTROL LOCATIONS NO. Location.No Control Function 1 2 3 4 5 6 7 - 10 - 1 SW7 POWER SWITCH 2 SW1 OSD 3 SW2 DOWN 4 SW3 UP 5 SW4 LEFT 6 SW5 RIGHT 7 SW6 SOURCE/SET TIMING CHART VIDEO B A E C D SYNC F << Dot Clock (MHz), Horizontal Frequency (kHz), Vertical Frequency (Hz), Horizontal etc... (µs), Vertical etc... (ms) >> Mode 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 H/V Sort Sync Polarity H + V – H – V H – – V – H – V H – – V + H + V + H + V + H + V + H +/– V +/– H – V – H – V – H + V + H +/– V +/– H +/– V +/– H + V + H + V + DOT Clock 25.175 28.321 31.5 36.0 25.175 40.0 49.5 56.25 57.283 65.0 78.75 94.5 100.0 92.978 108.0 135.0 Frequency Total Period (E) Video Active Time (A) Front Porch (C) Sync Duration (D) Back Porch (F) Resolution 640x350 70Hz 31.469 800 640 16 96 48 70.8 449 350 38 2 59 31.468 900 720 18 108 54 70.8 37.5 449 840 400 640 12 16 2 64 35 120 75 500 480 1 3 16 43.269 832 640 56 56 80 85.0 31.469 509 800 480 640 1 16 3 96 25 48 59.94 525 480 10 2 33 37.879 1056 800 40 128 88 60.317 628 600 1 4 23 46.875 1056 800 16 80 160 75.0 625 600 1 3 21 53.674 1048 800 32 64 152 85.061 631 600 1 3 27 49.725 1152 832 32 64 224 74.55 667 624 1 3 39 48.363 1344 1024 24 136 160 60.0 806 768 3 6 29 60.123 1312 1024 16 96 176 75.029 800 768 1 3 28 68.677 1376 1024 48 96 208 84.997 808 768 1 3 36 68.681 1456 1152 32 128 144 75.062 915 870 3 3 39 61.805 1504 1125 18 134 200 65.96 937 900 2 4 31 63.981 1688 1280 48 112 248 60.02 1066 1024 1 3 38 79.976 1688 1280 16 144 248 75.035 1066 1024 1 3 38 -5- 720x400 70Hz 640x480 75Hz 640x480 85Hz 640x480 60Hz 800x600 60Hz 800x600 75Hz 800x600 85Hz 832x624 75Hz 1024x768 60Hz 1024x768 75Hz 1024x768 85Hz 1152x870 75Hz 1152x900 65Hz 1280x1024 60Hz 1280x1024 75Hz EXPLODED VIEW a 5 EXPLODED VIEW PARTS LIST 21 22 20 a 6 19 10 18 c 7 13 11 c 9 d 8 12 7 c 15 b c 14 16 b 17 Description Ref. No. Part No. 1 3091TKL022D CABINET ASSY LS882C BRAND 3090TKL021A PC+ABS 85964 2 6304TLT181S LCD(LIQUID CRYSTAL DISPLAY) LM181E1-J3MN(S) LGPHLIPS COLOR 18.1 1280X1024 3 3809TKL006F BACK COVER ASSY, LS882C 006 4 3043TKK037G TILT SWIVEL ASSY, LS882C 5 4814TKK064A SHIELD INVERTER WIRE(LQ800) 6 4950TKS096C METAL FRAME (LB885) 7 6871TMT216A PWB(PCB) ASSEMBLY, MAIN, LS882C XAGC BRAND . TOTAL 8 4951TKK049A METAL ASSY, REAR LS882C 9 6631T11010D CONNECTOR ASSY, 21P H-H 160MM UL20276SB10P+2C AWG#30 LB885C 10 6633TZA004A INVERTER ASSY, SAMSUNG LG1801 FOR 18.1" LCD MNT(LB880B) 11 4814TKK067A SHIELD INVERTER(LQ800) 12 6871TST217A PWB(PCB) ASSEMBLY,SUB LS882C XAGC BRAND . TOTAL 13 3550TKK053C COVER LB880B HINGE 18.1" BRAND 14 3550TKK050C COVER LB880B STAND FRONT 18.1" BRAND 15 3550TKK051C COVER LB880B STAND REAR 18.1" BRAND 16 3550TKK052C COVER LB880B BASE TOP 18.1" BRAND 17 6871TST197A PWB(PCB) ASSEMBLY,SUB, LH881D XAGT H/PACKARD ZANSKAR TOTAL 18 6634TBZ006A ADAPTER, AC-DC, PSCV700101A SAMSUNG 100-240V 12V 5.8A FOR LG 19 6866TD9001F SIGNAL CABLE UL 2990-9C(7.5) DT 1870MM GRAY(85964) LB500 DM 20 6866TDV004C CABLE, DVI, UL20276 DT 2000MM GRAY(85964) LB885C DM (DVI-I CABLE) 21 6866TDU002D SIGNAL CABLE 22 6634TFZ004A ADAPTER,SIGNAL , DVI-I(MAIL)-VGA(FMAIL) UNIXTAR LB885C UL20276SB10P+2C AWG#30 DT 1870MM GRAY(85964) BRAND(USB CABLE) a 332-095E SCREW, PZP+3*16(MSWR/FZMY) b 332-095C SCREW, PZP+3*12(MSWR/FZMY) STD c 332-110A SCREW, PZS+3*6 (MSWR/FZMY) d 332-105C SCREW, PVS+4*12(MSWR/FZMW)