Iiyama Vision Master Pro 454 HM903DT Service Manual
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Iiyama Vision Master Pro 454 HM903DT Service Manual

Iiyama Vision Master Pro 454 HM903DT Service Manual

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SERVICE MANUAL

Copyright
I I YA M A C O R P O R AT I O N
710-1 Kitaowaribe, Nagano-shi 381-0014 JAPAN
NO. S1901E02
October 30, 2000
HM903DT
A902MT-v

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  • Page 1: Service Manual

    NO. S1901E02 October 30, 2000 SERVICE MANUAL HM903DT A902MT-v Copyright I I YA M A C O R P O R AT I O N 710-1 Kitaowaribe, Nagano-shi 381-0014 JAPAN...
  • Page 2 [ Revision Record ] Rev. Section Contents...

  • Page 3: Table Of Contents

    CONTENTS Page i-ii SAFETY PRECAUTION................1. SET-UP ADJUSTMENTS................1-15 2. TIMING CHART....................3. IC APPLICATION................... 17-18 4. CIRCUIT DESCRIPTION................. 19-30 31-56 5. SERVICE PARTS LIST................... 57-65 6. EXPLODED VIEW..................7. DIAGRAMS....................66-68 NOTICE The information in this document is subject to change without notice.

  • Page 4: Safety Precaution

    SAFETY PRECAUTION 1. The design of this product contains special hardware, many circuits and components specially for safety pur- poses. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.
  • Page 5 Alternate Check Method Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check.). Use an AC voltmeter having 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15uF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe etc.).

  • Page 6: Set-Up Adjustments

    Degausser Headphones CD player Audio-LR confirmation equipment USB compliant computer Interface adapter (Iiyama handmade) Short-connector (Iiyama handmade) <Preparation> Place the monitor without tilting. Connect the signal cable from the signal generator to the monitor. Face the CRT screen to east so as not to be influenced by magnetic force.

  • Page 7: User Mode

    ADJUSTMENT MODE There are two different modes available to adjust the monitor as described below. The adjustment with ‘o’ in front of the title are only available under User Mode. The adjustments with ‘n’ in front of the title are only available under Factory Mode.
  • Page 8 EXTERNAL DEGAUSS Make sure you disable the Bottom-right, Top-right, Top-left, Bottom-left, and rrc settings before performing the external degauss. Follow the procedure below depending on the adjustment mode you are in. PROCEDURE USER MODE 1) Select Degauss and press the MENU Button so that the Bottom-right, Top-right, Top-left and Bottom- left will be disabled.
  • Page 9 1-1. 80V-ADJ adjustment [PWB-MAIN] Voltage Receive a cross-hatch inverted signal of MODE 1 when applying the AC voltage of 110±10V. Connect the DC voltmeter between CONNECTOR TP and GND (chassis). Adjust the voltage to DC 80±0.5V with VR951 (80V-ADJ). VR951 80V-ADJ 1-2.
  • Page 10 1-4. TEMPERATURE SENSOR confirmation CRT Check fannel Receive a cross-hatch inverted signal of MODE 5. * * * * Monitor front Select CRT Check and press the MENU Button. Confirm that respective temperature of CRT fannel and monitor front displayed on the screen is as follows: actual temperature ±5°C. 1-5.
  • Page 11 1-7. V-BLANKING confirmation Receive a cross-hatch inverted signal of MODE 5. Adjust the vertical size and position (V-size and V-position) of the picture roughly with the front buttons. Raster rolling Raster tearing Select DA TEST 3 and press the MENU Button so that the automatic confirmation program starts.
  • Page 12 1-11. PICTURE SIZE, POSITION AND DISTORTION adjustment (Criteria) Receive a cross-hatch inverted signal of MODE 5. Adjust the picture size and position to the specified setting below. Picture H-size: 360±10mm H-position: | A–B |<8mm V-size: 270±10mm V-position: | C–D |<8mm Correct the side distortion with the front buttons so that X of the right hand Bezel side figure is as follows: | X | </= 0.5mm/30mm when selecting the most...
  • Page 13 1-14. Automatic COLOR adjustments WARNING: Do not change the horizontal and vertical sync signal or the frequency while the automatic COLOR adjustments are underway. Color analyzer setting: cd/m² Luminance unit switch Luminance unit switch: cd/m B.P.S. DIP switch: 9600 (1000) Turn ON the color analyzer switch and press 0-CAL switch before use.
  • Page 14 1-16. BRIGHTNESS adjustment [PWB-MAIN] Brightness Receive an entire white raster signal of MODE 5. Apply a photometer to the screen center. Adjust VR502 (ABL-ADJ) so that photometer reads 105±5cd/m VR502 ABL-ADJ 1-17. SYNC SIGNAL INPUT confirmation Receive a cross-hatch inverted signal of MODE 4. Select composite and sync on green signal inputs respectively by the signal generator.
  • Page 15 1-21. V-CONVERGENCE confirmation Receive a cross-hatch inverted signal of MODE 5. Select V-convergence or DA TEST 2, and press the MENU Button so that the automatic confirmation program starts. Confirm that the vertical line is diverged. Back-raster 1-22. RASTER REGULATION (DYNAMIC) confirmation Receive an entire white signal of MODE 5.
  • Page 16 3) Double-click “Universal serial bus controller” as shown in Fig 1 on next page. 4) Confirm that “Generic USB Hub” or “Iiyama USB Hub” appears as shown in Fig 2. 5) Disconnect the USB Cable from the USB compliant computer.
  • Page 17 Fig. 1 Double-click here Fig. 2 Fig. 3 “Generic USB Hub” or “Iiyama USB Hub” - 12 -...
  • Page 18 1-27. ITC (Integrated Tube Component) adjustments The following ITC adjustments should be made only when a new picture tube is installed, or convergence is poor. All set-up adjustments above-mentioned must be completed before any further ITC adjustment is attempted. Receive an entire white raster signal and turn ON the Power Switch. Perform adjustment after a warm-up of at least an hour.
  • Page 19 1-27-2. TRD adjustment Picture Picture Notes: 1. This adjustment should be performed only when the picture distortion in the right hand side figure is permitted. 2. Be sure to perform the 1-27-6. YV (a) adjustment after Bezel this adjustment because the convergence adjusted by YV volume is changed at the same time during this adjustment.
  • Page 20 1-27-6. YV (a) adjustment Receive a red and blue cross-hatch signal. Adjust the specified YV (a) volume so that red and blue beams converge each other at the upper and lower edges of the horizontal line. 1-27-7. YH (t) adjustment Receive a red and blue cross-hatch signal.
  • Page 21 Video Sync H-parameters V-parameters A: Total period O: Total period B: Sync.width P: Sync.width C: Back porch Q: Back porch D: Active video R: Active video E: Front porch S: Front porch Sync Horizontal (µsec) Vertical (msec) Sync polarity Mode VESA Timing Name (kHz) (Hz)

  • Page 22: Ic Application

    3. IC APPLICATION Ref No. Description Application Location (PWB) Deflection circuit UPC1888FCT H&V oscillator, Distortion / Size / Phase / DBF control MAIN IC350 á LA7840L Vertical deflection output IC401 á S-correction switching SLA5057 IC502 Power circuit IC901 STR-G6551 Sub power control STAND á...
  • Page 23 Main microprocessor specifications Name Function Name Function P36/VSYNC1 V-SYNC signal input 12MHz X'TAL P35/HSYNC1 H-SYNC / COMP signal input XOUT 12MHz X'TAL P34/VSYNC0 V-SYNC signal out TEST P33/HSYNC0 H-SYNC signal out 5V Vcc P32/CLAMP0 Video clamper Cushion-S switching signal 1 P31/HOHALF N.C.

  • Page 24: Circuit Description

    4. CIRCUIT DESCRIPTION 4-1. POWER SUPPLY circuit Power supply circuit consists of MAIN POWER circuit on PWB-MAIN and SUB POWER circuit on PWB-VIDEO. These circuits are an asynchronous switching power supply circuit of secondary output feedback with using IC901 and IC951 built-in output FET and control IC. Power supply start procedure is as follows;...
  • Page 25 (2) MAIN POWER circuit 400V is supplied to this circuit from the POWER FACTOR circuit. Start-up resister R968 and R969 detect 4 pin of IC951 voltage (VCC-IN) and activate internal start circuit of IC951. When 4 pin of IC951 voltage turns to 16V, internal control circuit starts operation and auxiliary coil voltage between 8 and 9 pin of T950 (main transformer) is up to approx.18V, and MAIN POWER circuit is activated.
  • Page 26 (3) SUB POWER circuit When AC input is supplied to SUB POWER circuit, start-up resister R908 and R909 detect 4 pin of IC901voltage (VCC-IN) and activate internal start circuit of IC901. When pin 4 of IC901 voltage turns to 16V, internal control circuit starts operation and auxiliary coil voltage between 2 and 3 pin of T901 (sub transformer) is up to approx.18V, and SUB POWER circuit is activated.
  • Page 27 (4) Power management modes When IC301 (main microprocessor) detects presence of horizontal and vertical sync signal and video signal, control signal is output from IC104 (sub microprocessor). The control signal stops MAIN POWER circuit and decrease heater voltage, and power consumption is reduced. <Power save control signals>...
  • Page 28 4-3. CONTROL circuits (1) HORIZONTAL / VERTICAL OSCILLATION circuit The H/V-sync signal input to IC350 is phase-sifted and converted to the waveform in IC350. The pulse synchronized with the horizontal sync signal is output from pin 17 as horizontal drive pulse. The sawtooth wave synchronized with the vertical sync signal is output from pin 4.
  • Page 29 (3) HORIZONTAL SIZE and DISTORTION CONTROL circuits The variable B voltage control pulse synchronized with the horizontal sync signal is output from pin 14 of IC350. The control pulse makes the PRESSOR CHOPPER circuit consisted of L955, Q951 and D964 output the variable B voltage of horizontal deflection output.

  • Page 30: Horizontal Deflection Circuit

    4-4. HORIZONTAL DEFLECTION circuit (1) HORIZONTAL DRIVE circuit The horizontal drive pulse output from pin 17 of IC350 is amplified by Q504 and T502 and then supplied to Q503 (H-OUT) base as a current. The current is amplified by Q503 and then supplied to the deflection yoke as a horizontal deflection current to control the horizontal deflection.
  • Page 31 4-5. DYNAMIC BEAM FOCUS (DBF) circuit (1) H-DBF The parabolic wave of horizontal period is output from pin 9 of IC350 (HDFO) and then amplified b y Q516 and Q517. It increases up to approx. 500Vp-p by T503 and synthesized with V-parabolic wave and then applied to pin 13 (DF) of T501 (FBT).

  • Page 32: Video Circuit

    4-6. VIDEO circuit (1) Pre-amp The video signal from D-SUB connector via IC101 (SW-IC) is input to pins 1 (R-IN), 3 (G-IN) and 6 (B-IN) of IC201 pre-amplifier. This video signal is clamped by clamp signal input to pin 13 of IC201. The blanking signal input to pin 14 is synthesized with the clamped signal and then output from pins 29 (R-OUT), 27 (G-OUT) and 25 (B- OUT) respectively.
  • Page 33 4-7. HIGH VOLTAGE CONTROL / OUTPUT circuit The AFC pulse output from the HORIZONTAL DEFLECTION OUTPUT (L501 pin 9) applied to pin 4 of IC501 (HV-CONT-IC) and then a control pulse synchronized with the frequency of the AFC pulse is output from pin 1 of IC501 and operate Q521 (HV-OUT).
  • Page 34 4-9. CRT CORRECTION circuit Following adjustment and functions are for CRT correction. H/V-CONVERGENCE TILT-DY NS-RRC Landing (TR/TL/BR/BL) (1) H/V-CONVERGENCE and TILT-DY The signal input to IC205 (D/A) from IC301 (Main Microprocessor) by I C -BUS is output from pins 2 (TILT), 3 (H- CONV), 4 (V-CONV) and vary the current applied to each coils built-in deflection yoke by IC206 and IC207 (POWER-OP-AMP).

  • Page 35: Audio Circuit

    4-11. AUDIO circuit The audio signal from CN602 (AUDIO-IN) is amplified by IC601 (AUDIO-AMP) and output to Speaker and Headphone jack. The VR voltage (0-1.2V) from pin 9 of IC601 switch output of pins 6, 10, 11 and 12 of IC104 to HIGH and LOW to control the volume.

  • Page 36: Service Parts List

    5. SERVICE PARTS LIST WARNING ! The components identified by “ ! ” in this manual are critical for safety. Replace only with part number specified . < Contents > -Page- Abbreviations and Marks..................FAMILY-TREE....................ASSY-PACKING..................... ASSY-MONITOR....................34-35 ASSY-PWB-MAIN....................36-45 ASSY-PWB-STAND...................
  • Page 37 ELECTRICAL PARTS LIST < Abbreviations in PART section > Abbreviation Meaning Resistor-Carbon R-MB Resistor-Metal R-FUSE Resistor-Fuse Capacitor-Ceramic Capacitor-Electrolytic C-PP Capacitor-Polypropylene C-MF Capacitor-Multilayer Metallized Polyester Film Diode Zener Diode Transistor Photo Coupler Positive Thermistor Horizontal Drive Transformer Flyback Transformer Variable Resistor Switch Switching Transformer <...
  • Page 38 DWG. TITLE : FAMILY-TREE GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK ASSY-PACKING (HNE) T985T044-20 ASSY-PACKING (HNB) T985T044-30 ASSY-PACKING (LNN) T985T044-40 ASSY-PACKING (HNE) T985T044-60 ASSY-PACKING (HNB) T985T044-70 ASSY-PACKING (LNN) T985T044-80 ASSY-MONITOR T950R117-20 ASSY-MONITOR T950R117-40 ASSY-PWB-MAIN T950T070-10 ASSY-PWB-MAIN...
  • Page 39 DWG. TITLE : ASSY-MONITOR GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK FRONT-CABINET 700R079-25 FRONT-CABINET 700R079-23 BACK-COVER 700R080-22 STAND-SUPPORT 770R028-22 STAND-BASE 770R029-22 CAP-SCREW-L 700T027-03 CAP-SCREW-R 700T027-04 HOLDER-SP 700T026-02 STOP-RING 770T022-02 CHIP-LED 703T007-01 BUTTON-PUSH 704S003-02 RING 700T024-01 BASE-PLATE...
  • Page 40 DWG. TITLE : ASSY-MONITOR GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK LEAD-CONNECTOR 246T097-17 EARTH-WIRE 246V022-01 LEAD-CONNECTOR 246T097-09 LABEL-WARNING 851V109-03 LABEL-WARNING 851V109-01 AC-INLET 454Z012-01 THERMISTOR 103JT-025-00057 744Z006A10 SPEAKER NP-220/C057PA504-16/S57C16C-3 883Z011A01 RIVET PAD30M3HR-CC 679Z002A01 SHIELD-FINGER T10676 590Z028A01 SHIELD-FINGER...
  • Page 41 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK RADIATOR-M 590S145-01 RADIATOR 590V091-01 RADIATOR 590V097-04 RADIATOR-P 590T089-01 SHIELD-IC 590T090-01 CLAMPER SHK-12 540Z080A01 CABLE-TIES GT-100M/TSL-100-M/YJ-100 540Z089A01 LEAD-WIRE 246Z004-02 SCREW BTV3*8MC-S 631Z121B08 SCREW MP-SEMS-W3*8MC-S 630Z401B08 SCREW...
  • Page 42 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK C354 3R3M-M 470Z339G63 C355 100V 1M-M 470Z109T83 C356 C-C-CHIP B-2200P-K 411Z222B14 C357 100V 1M-M 470Z109T83 C358 33M-M 470Z330T43 C359 C-C-CHIP B-R033M-K 411Z333B14 C360 1000M-M 470Z102G33...
  • Page 43 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK C524 C-PP 1000/1250V2200P-J 423Z222B57 C525 100V 220M-M 470Z221R87 C527 C-PP 1000/1250V8200P-J 423Z822B57 C528 1000M-M 460Z102B47 C529 100V 1M-M 460Z109B83 C530 100M-M 460Z101B43 C531 R1M-M 460Z108H63...
  • Page 44 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK C972 100M-M 460Z101B43 C973 B-100P-K 413Z101B43 C974 500V B-330P-K 411Z331B33 C975 C-C-CHIP B-1000P-K 411Z102B14 C976 C-C-CHIP CH-470P-J 410Z471B14 C978 1000M-M 470Z102G57 C979 C-C-CHIP F-R1M-Z 411Z104B44...
  • Page 45 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK D529 MTZ-J13C/HZ12B3 742Z417A21 D531 1N4148/1SS133/1SS120 742Z001A21 D532 D3S4M 742Z045A17 D533 MTZ-J27A/HZ24-3 742Z415A21 D534 SO-COPPER-WIRE 990Z001A11 D534 MTZ-J27A/HZ24-3 742Z415A21 D535 SO-COPPER-WIRE 990Z001A11 D535 MTZ-J27A/HZ24-3 742Z415A21 D801...
  • Page 46 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK L502 COIL-CHOKE 470MH 751Z308A46 L503 COIL-H-LIN 754Z004A80 L504 COIL-CHOKE 22MH 751Z619A66 L505 SO-COPPER-WIRE 990Z001A11 L506 SO-COPPER-WIRE 990Z001A11 L507 COIL-H-LIN 754Z006A40 L508 COIL-CHOKE 3R3MH 751Z309A13 L509...
  • Page 47 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK R304 R-M-CHIP 1/10W 33-J 613Z330C24 R305 R-M-CHIP 1/10W 33-J 613Z330C24 R306 R-M-CHIP 1/10W 1K-J 613Z102C24 R307 1/4W 100-J 613Z101C11 R308 R-M-CHIP 1/10W 33-J 613Z330C24 R310...
  • Page 48 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK R403 R-M-CHIP 1/10W 6R8K-F 613Z682C54 R404 R-M-CHIP 1/10W 12K-F 613Z123C54 R405 R-MB 1/4W 33K-F 615Z333B11 R406 R-FUSE 1/4W 1R5-J 614Z159A61 R407 R-M-CHIP 1/10W 8R2K-F 613Z822C54...
  • Page 49 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK R561 R-FUSE 1/4W 2R2-J 614Z229A61 R562 R-FUSE 1/4W 10-J 614Z100A61 R563 1/4W 33-J 613Z330C11 R564 1/4W 4R7K-J 613Z472C11 R565 R-M-CHIP 1/10W ZERO 613Z999B24 R566 1/4W...
  • Page 50 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK R970 R-CE 68K-J 616Z683C17 R971 R-MB 12-J 612Z120C37 R972 R-FUSE 1/4W 33-J 614Z330A61 R974 1/4W 1R2K-J 613Z122C11 R975 R-M-CHIP 1/10W 1K-J 613Z102C24 R976 R-M-CHIP 1/10W...
  • Page 51 DWG. TITLE : ASSY-PWB-MAIN GROUP 10: HM903DT, 20: A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK GT-PIN DIA2.36 452Z902A10 EYELET 679D022A20 RADIATOR 595D313A10 RADIATOR OSH-2425/PR1724/790Z006-10 790Z006A10 RADIATOR 23*41*1.2 790Z016A20 RADIATOR OSH-2054/2054-650-MP 790Z025A10 PWB-MAIN 210R101-01 - 46 -...
  • Page 52 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – RADIATOR-B 590S146-01 – SHIELD-PLATE 590V110-01 – SHIELD-VIDEO-A 590S147-01 SHIELD-USB 590T091-01 – – SCREW MP-SEMS-W3*10MC-S 630Z401B10 – SCREW BTV3*8MC-S 631Z121B08 – LEAD-CONNECTOR 246T097-15 –...
  • Page 53 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – C1G2 47M-M 460Z470B43 – C1G4 47M-M 460Z470B43 – C1R2 47M-M 460Z470B43 – C1R4 47M-M 460Z470B43 – C201 C-C-CHIP B-4700P-K 411Z472B14 – C202 C-C-CHIP F-R1M-Z 411Z104B44...
  • Page 54 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – C262 C-C-CHIP F-R1M-Z 411Z104B44 – C263 C-C-CHIP F-R1M-Z 411Z104B44 – C264 500V E-R01M-P/Z 411Z103A07 – C265 100M-M 470Z101T43 – C266 100M-M 470Z101T43 –...
  • Page 55 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – C926 C-C-CHIP F-R1M-Z 411Z104B44 – C928 820M-M 470Z821S47 – C929 C-MF 50/100V R1M-J 420Z104B83 – C930 C-C-CHIP F-R1M-Z 411Z104B44 – C931 100M-M 460Z101B43 –...
  • Page 56 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – IC208 7805 741Z532A35 – IC601 AN7522 741Z431A10 – IC701 ISP1122 741Z062A10 – IC702 PCF8582C 741Z063A10 – IC901 STR-G6551 741Z528A17 – IC921 741Z212A53 –...
  • Page 57 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – L717 FERRITE-CHIP BLM21PG221SN1 750Z901A34 – L718 FILTER-CHIP STC222B 752Z020A14 – L719 FILTER-CHIP STC222B 752Z020A14 – L720 FERRITE-CHIP BLM21PG221SN1 750Z901A34 – L721 FERRITE-CHIP BLM21BB221SN1 750Z901A54 –...
  • Page 58 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – R136 1/4W 4R7K-J 613Z472C11 – R137 1/4W 1K-J 613Z102C11 – R138 R-M-CHIP 1/10W 4R7K-J 613Z472C24 – R139 R-M-CHIP 1/10W 1K-J 613Z102C24 – R140 R-M-CHIP 1/10W...
  • Page 59 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – R1R8 R-M-CHIP 1/10W 15K-J 613Z153C24 – R1R9 R-M-CHIP 1/10W 39K-J 613Z393C24 – R1RA R-M-CHIP 1/10W 100-J 613Z101C24 – R201 1/4W 100-J 613Z101C11 –...
  • Page 60 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – R2BC 1/4W 1M-J 613Z105C11 – R2G1 1/4W 22-J 613Z220C11 – R2G3 R-M-CHIP 1/10W 22-J 613Z220C24 – R2G4 R-M-CHIP 1/10W 33-J 613Z330C24 – R2G5 1/2W 56-J...
  • Page 61 DWG. TITLE : ASSY-PWB-STAND GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – R908 R-MB 100K-J 612Z104C37 – R909 R-MB 100K-J 612Z104C37 – R910 FUSE 251005/20N5000 283Z221A21 – R920 R-FUSE 1/4W 15-J 614Z150A61 – R921 R-FUSE 1/4W 15-J...
  • Page 62 DWG. TITLE : SUB-MATERIAL GROUP 10: HM903DT, A902MT-v GROUP REV. REF.NO. PART DESCRIPTION PART NO. PRICE REMARK – SILICONE-GUM TSE3940/KE3490 090Z001A10 – SILICONE-GUM TSE3940 090Z001A20 – SILICONE-GUM TSE3941 090Z032A01 SILICONE-GUM KE3480 090Z018A01 – – SILICONE-GUM TSE3941 090Z032A02 – SILICONE-GUM KE40RTV 090Z009A30 –...

  • Page 63: Exploded View

    6. EXPLODED VIEW Note: The numbers in this exploded view are the same as the reference numbers in the Chapter 5. 63 64 15 17 L=70*2 Bottom face ASSY-PACKING - 57 -...
  • Page 64 Note: Except where indicate otherwise, all screw torcue is 9-11kgf-cm in ASSY-MONITOR. ASSY-1 ×6 torque 5-7kgf-cm D150 × 2 PWB-CONT ×4 PWB-CONT PWB-STAND SJ Lead Dabo Hole SH Lead ×4 torque 6-8kgf-cm SJ Lead ×5 C928 BLACK SJ Lead ASSY-MONITOR - 58 -...
  • Page 65 ASSY-2 torque 5-7kgf-cm torque 5-7kgf-cm × 2 torque 5-7kgf-cm × 3 PWB-MAIN From PWB-MAIN MH MR Clamper Lead Name torque C, 113 5-7kgf-cm ×2 LED lens (D150) × 2 L=40 × 2 ×4 × 2 × 5 × 2 torque 5-7kgf-cm To PWB-STAND To PWB-MAIN CABLE-TIES...
  • Page 66 ASSY-3 PWB-VIDEO From 61 BLACK To CL1 To CL2 CONV From FBT V-DY SC Lead C368-R335 Lead Wire To PWB-MAIN 15-20 From CRT To CRT × 2 H-DY × 2 Lower Coil Upper Coil Clamper Lead Name AD, DG D, G, G1, CONV, NS A, D, NS, C368-R335 A, B, NS ASSY-MONITOR...
  • Page 67 ASSY-4 × 4 DY Lead from MAIN torque 27+/-1kgf-cm FRONT × 4 To DY hook 65 66 ×2 ×2 ±5 L=40x2 19 20 ASSY-MONITOR - 61 -...
  • Page 68 PWB-VIDEO ASSY-5 ASSY-6-1 × 2 torque 5-7kgf-cm × 2 × 2 × 2 × 2 L=40 × 6 To SHIELD-VIDEO-A ×8 × 2 × 2 × 8 torque 5-7kgf-cm torque 5-7kgf-cm ×2 SHIELD-VIDEO-A To SHIELD-VIDEO-A Anode Lead FRONT-CABINET Focus, Screen Lead ASSY-MONITOR - 62 -...
  • Page 69 ASSY-6-2 ASSY-7 torque 12-13kgf-cm × 2 torque 12-13kgf-cm × 2 From PWB-MAIN 590R156-01 ASSY-MONITOR - 63 -...
  • Page 70 Forming Note: Except where indicate otherwise, all screw torcue is 100-110mm Q950, Q951 Q503 Q521 D501,D511 Q514,Q515 Q516,Q517 3-5kgf-cm in ASSY-PWB-MAIN. IC350 T501 5.0± 0.5 3.0± 0.8 3.0± 0.8 12.5± 0.5 5.0± 0.8 7.5± 0.5 C368 D322 Q951 from PWB-MAIN IC350 C539 C564...
  • Page 71 Note: Except where indicate otherwise, all screw torcue is 3-5kgf-cm in ASSY-PWB-STAND. CN101 × 2 RADIATOR RADIATOR D150 IC901 PWB-CONT TH901 PWB-VIDEO RADIATOR D921,D922,IC920 PWB-STAND ×2 IC601 CN701(2), CN702(4), TH901, CN203, CN204, 22, 23 CN703(4), CN601(2), (2, G1, KG, G2, KR, H1, H2, KB, 1) CN602(2) ×...

  • Page 72: Diagrams

    7. DIAGRAMS - 66 -...

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