PDi -P23LCD Service Manual
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PDi -P23LCD Service Manual

Color tft-lcd tv
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COLOR TFT-LCD TV
SERVICE MANUAL
MODEL : PDI-P23LCD
CAUTION !!
BEFORE SERVICING THE TFT-LCD TV,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
PDI-P23LCD SERVICE MANUAL
Document Number: PD196-093 Rev 1

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Summary of Contents for PDi PDI-P23LCD

  • Page 1 COLOR TFT-LCD TV SERVICE MANUAL MODEL : PDI-P23LCD CAUTION !! BEFORE SERVICING THE TFT-LCD TV, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. PDI-P23LCD SERVICE MANUAL Document Number: PD196-093 Rev 1...

  • Page 2: Table Of Contents

    Schematic Diagram -----------------------------------------------------------27 Block Diagram ----------------------------------------------------------------- 28 PCB Layout --------------------------------------------------------------------- 29 Wave form -----------------------------------------------------------------------34 Adjustment instruction with Default Factory Data----------------- 37 Packing instructions ---------------------------------------------------------39 Mechnical exploded view ---------------------------------------------------40 Replacement part list -------------------------------------------------------- 41 Circuit descriptions ---------------------------------------------------------- 47 PDI-P23LCD SERVICE MANUAL PAGE:2...

  • Page 3: Safety Precautions

    In case any measurement is out of the limits specified, there is possibility of shock hazard and the set must be checked and repaired before it is returned to the customer. Leakage Current Hot Check circuit PDI-P23LCD SERVICE MANUAL PAGE:3...

  • Page 4: Servicing Precautions

    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. PDI-P23LCD SERVICE MANUAL PAGE:4...

  • Page 5: Specifications

    ACMS(Auto channel Memory System) PSM(Picture Status memory) SSM(Sound Status memory) PIP : PC ANALOG, PC DIGITAL(Main) – TV, Component, Video, S-Video ARC(ASPECT RATIO CONTROL): 16:9 / 14:9 / 4:3 / 16:9 zoom / 14:9 zoom / 4:3 zoom PDI-P23LCD SERVICE MANUAL PAGE:5...
  • Page 6 20 PAL 5.5 / 60Hz 21 PAL 6.0 / 60Hz 22 PAL 6.5 / 60Hz 23 SECAM 5.5 / 60Hz 24 SECAM 6.0 / 60Hz 25 SECAM 6.5 / 60Hz 26 SECAM L / L' TOTAL SYSTEM PDI-P23LCD SERVICE MANUAL PAGE:6...
  • Page 7 : Hor [Left/Right] 89Deg (Typ) / 89Deg (Typ), Ver [High(Top)/Low(Bottom)] 89Deg (Typ) / 89Deg (Typ) Luminance(Typ) : 450 cd/㎡(Typ) Contrast Ratio(Typ) : 1200(Typ) Display Color : 16,777,216 Color - True Back Light : 6 CCFL – U Type PDI-P23LCD SERVICE MANUAL PAGE:7...

  • Page 8: Location Of Control

    Adjusts the sound level. Adjusts menu settings. 12.SLEEP: Sets the sleep timer. 13.TV / PC : Selects TV or PC mode directly. 14.CC: Sets the caption function. 15.LIST: Displays the channel list menu. 16.Q.VIEW: Returns to the previously viewed channel. PDI-P23LCD SERVICE MANUAL PAGE:8...
  • Page 9 Selects a position of PIP screen. 22. SWAP: Switches a main picture for sub picture in PIP mode. The PIP screen will disappear after pressing the SWAP button. 22. MODE: Selects a PIP screen size – 16:1, 9:1 and 3:1 mode. PDI-P23LCD SERVICE MANUAL PAGE:9...
  • Page 10 8. Remote control sensor Accepts the IR signal of remote controller. 9. Power Indicator IIIuminates in red when the TV is OFF. IIIuminates in green when the TV is ON. IIIuminates in amber when the power save mode is active (only PC mode). PDI-P23LCD SERVICE MANUAL PAGE:10...
  • Page 11 8. PC AUDIO IN: Connect the audio cable from the PC to the OC AUDIO IN of the set. 9. AC INLET: Connect the power cable from wall. 10.PILLOW: Pillow Speaker Port. 11. COMM: CCI/Cloner Comm Port. 12. SPK: On Off switch for the intemal TV speakers and H/P jack. PDI-P23LCD SERVICE MANUAL PAGE:11...

  • Page 12: Inspection Instructions

    1. Supplied Accessories Note: Make Sure the following accessories are provided with Product. 1. AC Code 2. Owner’s manual 3.Mounting Brackets &Hardware 4. Pillow Speaker Jumper (Not included with the “-NB” model) (Not included with the “-NB” model) PDI-P23LCD SERVICE MANUAL PAGE:12...

  • Page 13: Deassembly Procedure

    4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws Remove 4 screws 2)Removal of Back cover, (First removal side cover) Remove 11 screws PDI-P23LCD SERVICE MANUAL PAGE:13...
  • Page 14 DEASSEMBLY PROCEDURE 3)Metal plate & Rear chassis Remove 8 screws 4)Remove bracket Remove 4 screws 오류! PDI-P23LCD SERVICE MANUAL PAGE:14...
  • Page 15 DEASSEMBLY PROCEDURE 5) Disconnect 8 plugs on Main PCB Remove 8 connector 6) Remove 12 Main & SMPS PCB screws Remove 11 screws PDI-P23LCD SERVICE MANUAL PAGE:15...
  • Page 16 DEASSEMBLY PROCEDURE 7-1)Removal of LCD module Remove 8 screws 7-2)Removal of LCD module Remove 10 screws PDI-P23LCD SERVICE MANUAL PAGE:16...
  • Page 17 DEASSEMBLY PROCEDURE 7-3)Removal of LCD module After remove front shield PDI-P23LCD SERVICE MANUAL PAGE:17...
  • Page 18 DEASSEMBLY PROCEDURE 7-4) Removal of LCD module Remove 2 screws PDI-P23LCD SERVICE MANUAL PAGE:18...
  • Page 19 DEASSEMBLY PROCEDURE 7-5) Removal of LCD module Remove 2 screws PDI-P23LCD SERVICE MANUAL PAGE:19...
  • Page 20 DEASSEMBLY PROCEDURE 7-6)Removal of LCD Module Front cover remains after removing LCD Module PDI-P23LCD SERVICE MANUAL PAGE:20...

  • Page 21: Wire Dressing

    WIRE DRESSING 1. Wire Dressing Note: Using acetate Tape PDI-P23LCD SERVICE MANUAL PAGE:21...
  • Page 22 1) Wire Dressing for speaker & Key control. ( No.1, acetate Tape) 2) Wire Dressing for Left speaker & Key control. ( No.2 acetate Tape) 3) Wire Dressing for Right speaker & Key control. ( No.3, acetate Tape) 499-004A : 3EA TAPE, ACETATE PDI-P23LCD SERVICE MANUAL PAGE:22...

  • Page 23: Part Appearance

    PART APPEARANCE 1.Part appearance A1504S C102S C3875S Regulator for Tuning Voltage C3198 2N7000 AP1501 LC33V or LD33V (LD1117) EEPROM 24C16W ,24C02W TTL LOGOC IC 74F08 PDI-P23LCD SERVICE MANUAL PAGE:23...
  • Page 24 PART APPEARANCE 1-1. Part appearance Voltage Reg Voltage Reg Voltage Detector Voltage Detector KIA78L05F KIA78L09F KIA7042AF KIA7027AF Schottky Rectifier B340 TTL LOGIC IC 74F08 PDI-P23LCD SERVICE MANUAL PAGE:24...

  • Page 25: Trouble Shooting

    (pin26~30) : 12V (B/L ON:5V / Off:0V) Check FET Check Replace Q804 (pin source) IC805 (pin1) : 12V IC805 IC805 (pin4) : 0V Replace Replace Q804 IC801 / ZD804 Replace the internal SMPS power or AC power PDI-P23LCD SERVICE MANUAL PAGE:25...
  • Page 26 Wave Replace IC101 15-3. No Operation LED blinking No LED Resistance:0 ohm IC01(pin69~75) IC804 (pin4) <-> Check ScalerCommuni All SCL/SDA cation Lines) SignalLevel = 3.3V = 3.3V Replace IC804 / D850 Replace IC101 Replace IC01 PDI-P23LCD SERVICE MANUAL PAGE:26...

  • Page 27: Schematic Diagram

    Schematic Diagram PDI-P23LCD SERVICE MANUAL PAGE:27...

  • Page 29: Block Diagram

    Power IC01 IC101 VCTI SCALER u-Com Power TEXT/Caption DVI Receiver Video Processor Sound Processor IF Processor De-Interlacer Power DC-IN DC-IN DVI-RGB PC-RGB Y, Pb, Pr AV-IN/OUT (Y, Cb, Cr) DC-IN D-SUB YPbPr(DVD) AV-IN/OUT S-VIDEO TUNER YPbPr(D-TV) PDI-P23LCD SERVICE MANUAL PAGE:28...

  • Page 30: Pcb Layout

    PCB LAYOUT 1. CONTROL PCB & PILLOW JACK PCB 1-1.Pillow PCB 1-2.Control PCB (Top pattern) (Top silk) (Bottom pattern) (Bottom silk) (Top pattern) (Top silk) (Bottom pattern) (Bottom silk) PDI-P23LCD SERVICE MANUAL PAGE:29...
  • Page 31 PCB LAYOUT 2. Main PCB ( TOP PATTERN ) PDI-P23LCD SERVICE MANUAL PAGE:30...
  • Page 32 PCB LAYOUT 3. Main PCB (TOP SILK) PDI-P23LCD SERVICE MANUAL PAGE:31...
  • Page 33 PCB LAYOUT 4. Main PCB ( BOTTOM PATTERN ) PDI-P23LCD SERVICE MANUAL PAGE:32...
  • Page 34 PCB LAYOUT 4. Main PCB ( BOTTOM SILK) PDI-P23LCD SERVICE MANUAL PAGE:33...

  • Page 35: Wave Form

    (0.7V-p-p, Input = Vertical color pattern) 3) Component Cr input, (L209 & R265 MEASURE) 4) S-video C signal input. (C236 MEASURE) (0.7V-p-p, Input = Vertical color pattern) 5) S-video Y signal input.(15.7Khz,1Vp-p) 6) CVBS Video signal input.(15.7Khz,1Vp-p) (R519 MEASURE) (R280 MEASURE) PDI-P23LCD SERVICE MANUAL PAGE:34...
  • Page 36 8) Q105 Emitter (Audio “L” output) 7) CVBS Video signal output.(15.7Khz,1Vp-p) (R279 MEASURE) 9) Q104 Emitter (Audio “R” output) 10)R132 IR signal input to u-computer. 13) Tuner 33V input (about 32V~34V) 16) C610 & C612 Power AMP Audio L,R output PDI-P23LCD SERVICE MANUAL PAGE:35...
  • Page 37 WAVE FORM NOTE!!: PC INPUT = 640x480 @ 60Hz Cross hatch pattern. 29) PC-DSUB Hsync input 28) PC D-SUB Vsync input (R705 MEASURE) (R740 MEASURE) PDI-P23LCD SERVICE MANUAL PAGE:36...

  • Page 38: Adjustment Instruction With Default Factory Data

    FM Radio + 10 Scart Volume + 118 Surround Mute if no carrier High Deviation DUAL MONO STEREO (DRX) (Sub-menu) (NVM Edit) (Sub-menu) (Hotel Option) (Sub-menu) (Reset TV-set) (Sub-menu) Warning: Do not adjust the “( )” item… PDI-P23LCD SERVICE MANUAL PAGE:37...
  • Page 39 Text : EAST EU1 - Language Options : NORTH AME 3EA - Model : M 4. TV White Balance Setting 5. TV White Balance Setting 7.SVC Mode Settingfinish The TV/AV bu 6.Completion of white balance setting : All Start PDI-P23LCD SERVICE MANUAL PAGE:38...

  • Page 40: Packing Instructions

    D . H . KIM T R EAT M EN T G H K MA 0 5 - 0 1 7 M O D EL APPD SC ALE SH EET LT 23Q 5LF 1 / 1 PDI-P23LCD SERVICE MANUAL PAGE:39...

  • Page 41: Mechanical Exploded View

    SCREW MACHINE 410-001N FTB 3*6 410-001R PB 4*8 TITLE MATERIAL DATA 2005. 09. 13 SET Exploded Draw ing THIS ENGR DRAWING NO. D. H. KIM TREATMENT MA05-016 MODEL APPD SCALE SHEET PDI-P23LCD LT23Q5LF 1 / 1 PDI-P23LCD SERVICE MANUAL PAGE:40...

  • Page 42: Replacement Part List

    LEAD ASSY(LVDS) PANLC230W010 23", LC230W01-A2-A PANEL, LCD COLOR AYBCLT23B01A VCTI23,F-MODEL,SCART REAR, COVER ASSY AYCALT23A01A 23", F-MODEL, (PR) CABINET ASSY AYSTLT23A01A 23" F-MODEL STAND ASSY AYMALT41F01A 23F,VCT-I,SCART MAIN PCB ASSY AYCOLT40A01A VCTI N/F CONTROL CONTROL PCB ASSY PDI-P23LCD SERVICE MANUAL PAGE:41...
  • Page 43 LA4282 42*16 HEAT SINK 498-001A Silicon Grease WAFLG04250SD GIL-G-4P-S3T2 Pin wafer, 4-PIN P110,P101 WAFML07200AD 53015-0710 Wafer, 7-PIN P111 WAFYH02200SD SMW200-02 Pin wafer, 2-PIN P601 WAFYH03200SD SMW200-03 Pin wafer, 3-PIN P602 WAFYH10200SD WAFER, PIN 10P, P2.0mm STRAIGHT P115 PDI-P23LCD SERVICE MANUAL PAGE:42...
  • Page 44 C133,C136,C137,C138,C142 C147,C148,C152,C158,C159 C161,C162,C163,C166,C171 0CHSS104DZTS CL10F104ZANC Capacitor, chip 0.1UF C172,C180,C181,C182,C183 C184,C186,C195,C196,C217 C236,C250,C252,C27,C28 C29,C30,C301,C31,C32 C33,C34,C35,C37,C38 0CHSS105DZTS CAPACITOR, CHIP 1UF,1608 C62,C65,C68 0CHSS150DJTS 15PF,1608 CAPACITOR, CHIP C235 0CHSS220DJTS CL10C220JBNC Capacitor, Chip, 22PF C07,C08 0CHSS222DKTS CAPACITOR, CHIP Capacitor, chip 2200PF,1608 C616,C621 PDI-P23LCD SERVICE MANUAL PAGE:43...
  • Page 45 Resistor, chip 10 ohm R168 R08,R105,R106,R107,R130 R131,R132,R133,R135,R137 R138,R139,R140,R141,R142 R143,R145,R146,R147,R148 R149,R150,R151,R153,R162 0RHSS101DJTS RC1608J101CS Resistor, chip 100 ohm R163,R17,R194,R195,R288 R289,R291,R292,R293,R294 R295,R296,R297,R298,R36 R52,R59,R60,R609,R635 R703,R711,R718,R719,R91 R117,R254,R518,R628,R631 0RHSS102DJTS RC1608J102CS Resistor, chip 1K R712,R713,R717,R839 R189,R190,R232,R233,R234 R235,R236,R237,R255,R256 R278,R290,R613,R627,R629 0RHSS103DJTS RC1608J103CS Resistor, chip 10K R630,R636,R704,R705,R706 R707,R72,R836,R837,R846 R841,R842,R845 PDI-P23LCD SERVICE MANUAL PAGE:44...
  • Page 46 AR24,AR25 Q100,Q101,Q103,Q601,Q203 0TRKE1504STS KTA1504S Y Transistor, chip A1504 Q603,Q104,Q105 Q01,Q102,Q11,Q204,Q198 0TRKE3875STS KTC3875S Y Transistor, chip Q205,Q210,Q602,Q604,Q800 Q802,Q803,Q812,Q813 1DHSTS1545GS DIODE, RECTIFIER D2PAK, 45V 15A D850 D700,D701,ZD191,ZD192,ZD202 ZD205,ZD207,ZD209,ZD213,ZD214 ZD215,ZD216,ZD217,ZD218,ZD219 1DZSC5231BTS DIODE, ZENER CHIP 5.1V, MMSZ5231BS-7 ZD220,ZD221,ZD222,ZD225,ZD601 ZD602,ZD702,ZD703,ZD704,ZD705 ZD706,ZD805,ZD806 PDI-P23LCD SERVICE MANUAL PAGE:45...
  • Page 47 Capacitor, chip 0.1UF C845,C847 0RHSS000DJTS RC1608J000CS Resistor, chip 0 ohm R824 0RHSS000EJTS RC2012J000CS Resistor, chip 0 OHM R823 0RHSS103DJTS RC1608J103CS Resistor, chip 10K R825 0RHSS473DJTS RC1608J473CS Resistor, chip 47K R826 WAFYH30125AS WAFER, PIN 30P, P125, ANGLE P303 PDI-P23LCD SERVICE MANUAL PAGE:46...

  • Page 48: Circuit Descriptions

    Requirements. With the exception of LCD Panel, the display device shall be composed entirely of solid state components. These components shall have a history of reliable service in identity applications and shall be applied in the circuits. 1. SCALER SECTION. 2. VCT 49xxi SECTION. 3. Video A/D Converter PDI-P23LCD SERVICE MANUAL PAGE:47...
  • Page 49 To further reduce system costs, the MST6151 also integrates intelligent power management control capability for green-mode requirements and spread-spectrum support for EMI management. PDI-P23LCD SERVICE MANUAL PAGE:48...
  • Page 50 CIRCUIT DESCRIPTIONS 2) Block Diagram. PDI-P23LCD SERVICE MANUAL PAGE:49...
  • Page 51 CIRCUIT DESCRIPTIONS 3) Pin configuration. Reference line The left side The right side PDI-P23LCD SERVICE MANUAL PAGE:50...
  • Page 52 CIRCUIT DESCRIPTIONS 3-1) Pin configuration < The left side > PDI-P23LCD SERVICE MANUAL PAGE:51...
  • Page 53 CIRCUIT DESCRIPTIONS 3-2) Pin configuration < The right side > PDI-P23LCD SERVICE MANUAL PAGE:52...
  • Page 54 CIRCUIT DESCRIPTIONS 4) Pin Functions. [MCU Interface] [Analog Interface] PDI-P23LCD SERVICE MANUAL PAGE:53...
  • Page 55 CIRCUIT DESCRIPTIONS [DVI Interface] [Video Interface] [LVDS Interface] PDI-P23LCD SERVICE MANUAL PAGE:54...
  • Page 56 CIRCUIT DESCRIPTIONS [GPO Interface] [DRAM Interface] PDI-P23LCD SERVICE MANUAL PAGE:55...
  • Page 57 CIRCUIT DESCRIPTIONS [Misc. Interface] [Power Pins] [No Connects] PDI-P23LCD SERVICE MANUAL PAGE:56...
  • Page 58 Each member of the family contains the entire IF, audio, video, display, and deflection processing for 4:3 and 16:9 50/60-Hz mono and stereo TV sets. The integrated microcontroller is supported by a powerful OSD generator with integrated Teletext & CC acquisition including on-chip page memory. PDI-P23LCD SERVICE MANUAL PAGE:57...
  • Page 59 CIRCUIT DESCRIPTIONS 2) Block Diagram. PDI-P23LCD SERVICE MANUAL PAGE:58...
  • Page 60 CIRCUIT DESCRIPTIONS 3) Pin configuration. Reference line The left side The right side PDI-P23LCD SERVICE MANUAL PAGE:59...
  • Page 61 CIRCUIT DESCRIPTIONS 3-1) Pin configuration < The left side > PDI-P23LCD SERVICE MANUAL PAGE:60...
  • Page 62 CIRCUIT DESCRIPTIONS 3-2) Pin configuration < The right side > PDI-P23LCD SERVICE MANUAL PAGE:61...
  • Page 63 4) Pin Connections and Short Descriptions NC = not connected LV = if not used, leave vacant OBL = obligatory; connect as described in circuit diagram IN = Input Pin OUT = Output Pin SUPPLY = Supply Pin 4-1) Pin(Port) Functions PDI-P23LCD SERVICE MANUAL PAGE:62...
  • Page 64 CIRCUIT DESCRIPTIONS 4-2) Pin(Port) Functions PDI-P23LCD SERVICE MANUAL PAGE:63...
  • Page 65 CIRCUIT DESCRIPTIONS 4-3) Pin(Port) Functions PDI-P23LCD SERVICE MANUAL PAGE:64...
  • Page 66 CIRCUIT DESCRIPTIONS 4-4) Pin(Port) Functions PDI-P23LCD SERVICE MANUAL PAGE:65...
  • Page 67 CIRCUIT DESCRIPTIONS 4-5) Pin(Port) Functions PDI-P23LCD SERVICE MANUAL PAGE:66...
  • Page 68 ■The MST9883CR can send output data through one 24-bit port at the pixel clock rate. ■The MST9883CR can also support RGB to YCbCr conversion. ■The MST9883CR has internal programmable pattern generator for testing. ■The MST9883CR can accept either standard TTL, CMOS levels or sawtooth vertical deflection signals for VSYNC input. PDI-P23LCD SERVICE MANUAL PAGE:67...
  • Page 69 CIRCUIT DESCRIPTIONS 2) Block Diagram. PDI-P23LCD SERVICE MANUAL PAGE:68...
  • Page 70 CIRCUIT DESCRIPTIONS 3) Pin configuration. PDI-P23LCD SERVICE MANUAL PAGE:69...
  • Page 71 CIRCUIT DESCRIPTIONS 4-1) Analog Interface 4-2) Misc. Interface PDI-P23LCD SERVICE MANUAL PAGE:70...
  • Page 72 CIRCUIT DESCRIPTIONS 4-3) Output Interface 4-4) Power Pins PDI-P23LCD SERVICE MANUAL PAGE:71...

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