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Memorex INSTRUCTION MANUAL Instruction Manual

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MT2271 (SERIES A)
SERVICE MANUAL
COLOR TELEVISION RECEIVER
ORIGINAL
MFR'S VERSION B
Design and specifications are subject to change without notice.

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  • Page 1 MT2271 (SERIES A) SERVICE MANUAL COLOR TELEVISION RECEIVER ORIGINAL MFR’S VERSION B Design and specifications are subject to change without notice.

  • Page 2: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 3: Table Of Contents

    CONTENTS SERVICING NOTICES ON CHECKING ...................... A1-1 HOW TO ORDER PARTS ........................... A1-1 IMPORTANT ..............................A1-1 CONTENTS ..............................A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-4 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ......................B1-1 2. REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ..............B2-1, B2-2 SERVICE MODE LIST ..........................

  • Page 4: General Specifications

    GENERAL SPECIFICATIONS G - 1 CRT Size / Visual Size 27 inch / 675.1mmV Sys tem CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2Speaker Position Front Size 1.5 x 2.7 Inch Impedance Sound Output 2.5 + 2.5 W 10%(Typical) 2.0 + 2.0 W...
  • Page 5 GENERAL SPECIFICATIONS CH Label Sleep Timer Sound Mute V-chip Rating G - 8 OSD Language English French Spanish OSD Language Setting English G - 9 Clock and Sleep Timer Max Time 120 Min Timer Step On/Off Timer Program(On Tim / Off Tim) Wake Up Timer Timer Back-up (at Power Off Mode) more than...
  • Page 6 GENERAL SPECIFICATIONS Channel Lock Just Clock Function Game Position CH Label VM Circuit Full OSD Premiere Comb Filter Lines Auto CH Memory Hotel Lock Closed Caption Stable Sound Favorite CH G - 1 2 Accessories Owner's Manual Language English/FRENCH w/Guarantee Card Remote Control Unit Rod Antenna Poles...
  • Page 7 GENERAL SPECIFICATIONS Content ---- Sets Material Dimensions W x D x H(mm) x -- x -- Description of Origin Gift Box Material Double/WHITE CORRUGATED CARTON Dimensions W x D x H(mm) x 558 x 655 Design As per Buyer's Description of Origin Natural Dropping At 1 Corner / 3 Edges / 6 Drop Test Surfaces...

  • Page 8: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 9: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 10 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 2-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 11: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.

  • Page 12: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. BEFORE MAKING ELECTRICAL 2. BASIC ADJUSTMENTS ADJUSTMENTS 2-1: RF AGC DELAY Read and perform these adjustments when repairing the Receive an 60dB monoscope pattern. circuits or replacing electrical parts or PCB assemblies. Connect the digital voltmeter to TP001 (R606). Activate the adjustment mode display of Fig.
  • Page 13 ELECTRICAL ADJUSTMENTS "A" Fig. 2-1 00 OSD Fig. 2-3 2-9: OSD HORIZONTAL Activate the adjustment mode display of Fig. 1-1. 110% Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) 100% 2-10: VERTICAL VCO Fig.
  • Page 14 ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. minutes before performing the following adjustments.

  • Page 15: Major Components Location Guide

    MAJOR COMPONENTS LOCATION GUIDE CP351 VR502 TP402 TU001 R606 FB401 J701 CP601 FOCUS VOLUME SCREEN VOLUME MAIN PCB TP023 TP022 J801 CRT PCB D3-1...

  • Page 16: Block Diagram

    BLOCK DIAGRAM TONE CONTROL IC 9V REG. IC SOUND DECORDER IC IC853 KIA78L09BP-AT IC854 M62420SP IC852 AN5829S +12V 22 21 24 18 19 9 10 2 19 Q351 MUTE SW Q707 Q705 Q852 Q851 IC351 LA4600 CHROMA IC TU001 MUTE MUTE IC601 M61206FP BUFFER...
  • Page 17 PRINTED CIRCUIT BOARDS MAIN/CRT/AV (INSERTED PARTS) SOLDER SIDE SW105 TP023 SW104 SW103 SW102 SW101 R806 OS101 FH501 FH502 W016 R804 W084 R625 W015 _A_V F501 W014 Q608 S807Y C530 W012 W013 R802 X101 W011 W010 W002 W857 W120 W072 PH004 R515 Q603 L501...

  • Page 18: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE R708 R749 R716 R704 C708 C554 R553 C408 R861 R866 C880 C879 C511 IC852 R864 R853 R640 R618 R650 R634 C650 C636 R639 C618 R633 C616 C114 IC601 R122 R646 IC101 R638 R133 R614...
  • Page 19 MICON/TUNER SCHEMATIC DIAGRAM (MAIN PCB) TU001 ENV56D66G3 ACCESSORY FROM/TO CHROMA C003 TUNER+5V TM101 R001 R002 RC-DW040 18K 1/2W 18K 1/2W SYNC P23/SYNC I2C_OFF Y_VIDEO MICON IC IC101 OEC7044C R123 4.7K W862 OSD_R P50/H.SYNC RED R W863 R122 4.7K OSD_G P51/V.SYNC GREEN G R109 W864...
  • Page 20 CHROMA SCHEMATIC DIAGRAM (MAIN PCB) FROM POWER R645 AT+10V 5V REG Q601 KTC3203_Y 4.97 5V REG 5V REG Q604 Q605 2SD734 KTC3203_Y C652 15.0 W801 W802 CF604 Q606 R639 TPSRA4M50C00-A0 KTC3203_Y TO JACK/SOUND AT+10V C647 R615 CF603 SFSH4.5MCB R638 12K R646 FROM/TO JACK/SOUND C638_2...
  • Page 21 DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB) CP802A CP802B 51048-1010 S101 51048-1010 FROM/TO CHROMA CLAMP CLAMP CLAMP CLAMP CLAMP G.OUT G.OUT G.OUT G.OUT G.OUT B.OUT B.OUT B.OUT B.OUT B.OUT R.OUT R.OUT R.OUT R.OUT R.OUT V-OUT IC IC401 LA78041 V_FEEDBACK HEATER HEATER HEATER HEATER THERMAL V_OUT...
  • Page 22 POWER SCHEMATIC DIAGRAM (MAIN PCB) TO CHROMA AT+10V RELAY DRIVE Q504 D516 KTC3198 1SS133 TO DEFLECTION/CRT RY501 ALKS325 FBT+8V AT+10V DEGAUSS COIL C516 L503 8R250009 500V 470P TO SOUND CP502 R517 D509 TV-50P-02-A1 SOUND+B 21DQ09N 0.39 D505 21DQ09N SOUND_GND R501 TH501_1 ZPB45BL3R0A 3.3 7W...
  • Page 23 SOUND SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO MICON/TUNER 9V REG IC IC853 KIA78L09BP-AT AUDIO_MUTE R864 C881 AUDIO 13.5 1.8K 0.033 B TP601 R859 C879 C883_1 4.7K BUFFER 0.022 0.47 F Q851 2SA1015Y 1.8K TONE 136K AMP1 I2C BUS INTERFACE SIMAMP1 BUFFER VOLAMP1 6.5K 6.5K...
  • Page 24 JACK/SOUND SCHEMATIC DIAGRAM (MAIN PCB) FRONT_A/V_IN(STEREO) J702 JPJ1187-010010 CD701 2E043505 C702 R733 A_IN_R C701 A_IN_L R734 V_IN CP701A CP701B 51048-0410 52147-0410 CC001 TP-1S-05 FROM/TO SOUND FRONT_AUDIO_L FRONT_AUDIO_R REAR_AUDIO_R REAR_AUDIO_L C709 AUDIO_OUT_R AUDIO_OUT_L 220P CH PCB250 TEAA63 P.CON+5V VIDEO AMP IC IC702 NJM2234L Vin1...

  • Page 25: Micon/Tuner

    WAVEFORMS MICON/TUNER 11 1V 20µs/div 1 1V 0.1µs/div 6 0.5V 20µs/div 12 1V 20µs/div 200mV 20µs/div 0.5V 20µs/div 3 200mV 20µs/div 20V 20µs/div 1V 20µs/div DEFLECTION/CRT 200mV 5ms/div 14 0.5V 5ms/div 9 200mV 20µs/div CHROMA 15 20V 20µs/div 0.5V 5ms/div 0.5V 2ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 26: Power

    WAVEFORMS 26 200mV 1ms/div 16 2V 20µs/div 21 50V 20µs/div 200mV 1ms/div 22 50V 20µs/div 200V 20µs/div POWER 0.5V 1ms/div 10V 5ms/div 200mV 1ms/div 29 200mV 1ms/div 1V 1ms/div 10V 5ms/div SOUND 25 0.5V 1ms/div 30 200mV 1ms/div 50V 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 27 WAVEFORMS 31 200mV 1ms/div 0.5V 1ms/div 0.5V 1ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 28: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) L503 BRAIDE WIRE V801 TU001 PCB010 (MAIN PCB) SP351 PCB250 (AV PCB)
  • Page 29 MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION 899HV3T000 HOLDER,ANODE WIRE 701APJA061 CABINET,FRONT 702APAA002 CABINET,BACK 711WPCA021 BADGE BRAND 722A08A084 SHEET,RATING 723000B007 FILM,DECORATION 741WUA0021 SPRING,EARTH 713WPA0098 GUIDE,REMOCON 7230006856 SHEET,CAUTION 735WPA0565 BUTTON,ASS'Y 762WPA0009 HOLDER,CRT WIRE 8995034000 CORD CLIP UL CO. 8111J50D05 SCREW,TAPPING(A) GW22 5x35...
  • Page 30 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES ! R401 R4X5T6104F R,METAL 100K OHM 1/6W ! D504 D2WXN40050 DIODE SILICON 1N4005-EIC ! R402 R3X181102J R,METAL OXIDE OHM 1W ! D505 D28T21DQN9 DIODE SCHOTTKY 21DQ09N-TA2B1 ! R404 R801R7102J...
  • Page 31 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION COILS &TRANSFORMERS L608 021LA66R8K COIL 6.8 UH T401 045013001J TRANS,HORIZONTAL DRIVE 5013001 ! T501 048135048S TRANSFORMER,SWITCHING 8135048S JACKS J701 060Q471003 RCA JACK YKC21-7163A J702 0602431013 RCA JACK JPJ1187-010010 ! J801 066C130015 SOCKET,CATHODE RAY TUBE CVT3275-5102 SWITCHES SW101...
  • Page 32 SPEC.NO. M3K1-11H O/R NO. A163507...
  • Page 33 MT2271 SERVICE MANUAL COLOR TELEVISION RECEIVER REVISION 1 MFR’S VERSION F The ORIGINAL SERVICE MANUAL of MFR’S VERSION B is mistaken for MFR’S VERSION C. MFR’S VERSION IC101 IC601 M61203BFP OEC7044A M61203CFP OEC7044B Please file this revision with the original version.
  • Page 34 CORRECTION NOTICE NOTE FOR THE REPLACING OF MEMORY IC (MFR'S VERSION C) INCORRECT CORRECT DATA DATA ADDRESS Change of IC101 DIFFERENCES MFR'S VERSION C MFR'S VERSION F PART NO. DESCRIPTION PART NO. DESCRIPTION REF. NO. IC101 I56F07044A IC OEC7044A I56F07044B OEC7044B PCB010 A3I257H01A MAIN PCB ASS'Y...
  • Page 35 MT2271 SERVICE MANUAL COLOR TELEVISION RECEIVER ORIGINAL MFR’S VERSION B Design and specifications are subject to change without notice.
  • Page 36 SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 37: Mechanical Replacement Parts List

    CONTENTS SERVICING NOTICES ON CHECKING ...................... A1-1 HOW TO ORDER PARTS ........................... A1-1 IMPORTANT ..............................A1-1 CONTENTS ..............................A2-1 GENERAL SPECIFICATIONS ........................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS ....................... SERVICE MODE LIST ..........................CONFIRMATION OF USING HOURS ......................NOTE FOR THE REPLACING OF MEMORY IC ..................ELECTRICAL ADJUSTMENTS ........................

  • Page 38: General Specifications

    GENERAL SPECIFICATIONS G-1.Outline of the Product inch( 675.1 mmV):Measured diagonally Color CRT 111 degree deflection G-2.Broadcasting System System G-3.Color System NTSC SECAM or Monochrome signal G-4.NTSC Playback(PAL 60Hz) G-5.NTSC 3.58+4.43/PAL60Hz G-6.Antenna Input Impedance VHF/UHF 75 ohm unbalanced G-7. T uner and Receiving Contactless Electric tuner 1Tuner System 2Tuner System...
  • Page 39 GENERAL SPECIFICATIONS G-17.Protector: Power Fuse G-18.Regulation Safety NEMKO FEMKO DEMKO IEC65 SEMKO HOMOLO SABS SISIR AS3159 DENTORI GOST NONE Radiation SABA HOMOLO CISPR13 DENTORI AS/NZS NONE X-Radiation DHHS DENTORI NONE G-19.Temperature Operation ˚C~ 40 ˚C Storage ˚C~ 60 ˚C G-20.Operating Humidity Less than G-21.Clock and Timer Sleep Timer...
  • Page 40 GENERAL SPECIFICATIONS G-26.OSD Language OSD Language Setting Not Applicable G-27.Speaker P os i t i o n Front Side Bottom Size 1.5 x 2.7 inches 8 ohm x Power 2.5 + 2.5 W 10% 2.0 + 2.0 W (Typical) G-28.EXT Speaker : G-29.Carton Master Carton: Need...
  • Page 41 GENERAL SPECIFICATIONS G-31.Other Features Auto Degauss Auto Search Full OSD Auto Shut Off CH Allocation Premiere Canal+ Comb Filter CATV(181Ch) Channel Lock Auto CH Memory Anti-Theft Just Clock Function Hotel Lock Rental Game Position Fastext Unitext TopText Closed Caption Picture Menu Mid Night Theater V-Chip G-32.Switch...
  • Page 42 GENERAL SPECIFICATIONS G-34.Remote Control Unit: RC-74 Glow in Dark Remocon Power Source: Battery UM - 4 x 2 Total 28 Key Power Quick View TV/AV Stand By Status Bar Select Time Select PAL/SECAM Time Set Volume Up Muting Volume Down CH Skip CH Call CH1/CH2...

  • Page 43: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 44: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 1 second. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.

  • Page 45: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. BEFORE MAKING ELECTRICAL 2. BASIC ADJUSTMENTS ADJUSTMENTS 2-1: RF AGC DELAY Read and perform these adjustments when repairing the Place the set with Aging Test for more than 15 minutes. circuits or replacing electrical parts or PCB assemblies. Receive the VHF HIGH (70dB).
  • Page 46 ELECTRICAL ADJUSTMENTS 2-8: VERTICAL SHIFT NOTE: Adjust after performing adjustments in section 2-7. Receive the center cross signal from the Pattern Generator. Using the remote control, set the brightness and contrast to normal position. Fig. 2-1 Activate the adjustment mode display of Fig. 1-1 and press the channel button (07) on the remote control to select "V SHIFT".
  • Page 47 ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. minutes before performing the following adjustments.

  • Page 48: Major Components Location Guide

    MAJOR COMPONENTS LOCATION GUIDE VR502 TU001 TP401 TP001 FB401 J701 CP601 FOCUS VOLUME SCREEN VOLUME MAIN TP023 J801 TP022 D3-1...

  • Page 49: Block Diagram

    BLOCK DIAGRAM 9V REG. IC853 KIA78L09BP-AT P.CON+12V STEREO+5V SOUND AMP IC351 LA4600 12 20 MTS DECORDER IC TONE CONTROL IC SOUND+B IC852 IC854 Q351 AN5829S M62420SP MUTE SW SPEAKER SP351 F_A/V IN J702 Q852 R_A/V IN J701 BUFFER Q851 Q707 BUFFER MUTE SW Q705...

  • Page 50: Printed Circuit Boards

    PRINTED CIRCUIT BOARDS MAIN/CRT/AV (INSERTED PARTS) SOLDER SIDE R803 SW105 SW104 SW103 SW102 SW101 Q801 TP022 R802 OS101 D610 R805 W040 TP024 FH502 R804 FH501 W041 6.3A125V C123 R807 F501 W116 W023 R641 W043 Q802 X101 C612 D608 TP023 W133 R806 W086 W826...

  • Page 51: Main/Crt/Av

    PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE Q707 Q705 R708 Q403 Q101 Q851 Q852 Q706 C708 C554 R553 C408 R740 R861 R866 IC852 C881 Q351 R864 C868 Q607 R853 C863 R640 R618 R611 R634 C656_1 R644 R622 R647 R656 R629 R639...
  • Page 52 MICON/TUNER SCHEMATIC DIAGRAM (TV MT PCB) TU001 TECC1040PG31A TP001 JWF-50K-1 FROM/TO CHROMA C003 ACCESORRY TUNER+5V R001 68K1W SYNC TM101 R25-1055 I2C_OFF Y_VIDEO MICON IC IC101 OEC7044A R123 4.7K OSD_R P50/H.SYNC RED R R122 4.7K P51/V.SYNC GREEN G OSD_G R109 R121 4.7K P00/EXT MUTE BLUE B...
  • Page 53 CHROMA SCHEMATIC DIAGRAM (TV MT PCB) FROM POWER R645 AT+10V 5V REG. Q601 2SD734 Q604 Q605 5V REG. 5V REG. 2SD734 2SD734 10.2 Q606 CF604 8V REG. R639 2SD734 TPS4.5MB 5V REG. Q603 2SD734 C647 R615 CF603 SFSH4.5MCB R638 22K FROM/TO AV D607 C661 0.01 F...
  • Page 54 DEFLECTION/CRT SCHEMATIC DIAGRAM (TV MT PCB) CD802 CP802B 51048-0510 CP802A 51048-0510 2E054201 FROM/TO CHROMA CLAMP CLAMP CLAMP CLAMP CLAMP G.OUT G.OUT G.OUT G.OUT G.OUT B.OUT B.OUT B.OUT B.OUT B.OUT R.OUT R.OUT R.OUT R.OUT R.OUT V_OUT V.OUTPUT IC IC401 LA78041 V_FEEDBACK THERMAL L801 PROTECTION...
  • Page 55 POWER SCHEMATIC DIAGRAM (TV MT PCB) TO CHROMA 6.3A 125V AT+10V CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE 6.3A 125V(F501) D516 RELAY DRIVE Q504 ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE 1SS133 2SC1815Y N’UTILISER QUE DES FUSIBLE DE MEME TYPE R515...
  • Page 56 SOUND SCHEMATIC DIAGRAM (TV MT PCB) FROM/TO MICON 9V REG. IC853 KIA78L09BP-AT AUDIO_MUTE R864 C881 15.5 1.8K 0.033 B R859 C879 C883 BUFFER 4.7K 0.022 0.47 Q851 2SA1037AK 1.8K TONE 136K AMP1 I2C BUS INTERFACE BUFFER SIMAMP1 Q852 VOLAMP1 6.5K 2SA1037AK 6.5K 6.5K...
  • Page 57 AV SCHEMATIC DIAGRAM (TV MT PCB) F_A/V_IN(STEREO) J702 JPJ1187-010010 CD701 2E043505 C702 R733 A_IN_R D704 C701 A_IN_L R734 MTZJ6.8B V_IN CP701B 51048-0410 52147-0410 CP701A CC001 FROM/TO SOUND FRONT_AUDIO_L FRONT_AUDIO_R REAR_AUDIO_R REAR_AUDIO_L AUDIO_OUT_R AUDIO_OUT_L PCB250 TEXA22 IC702 VIDEO SW. NJM2234L Vin1 Vin2 Vin3 Vout...

  • Page 58: Micon/Tuner

    WAVEFORMS MICON/TUNER 1.0V 5ns/div 0.5V 10µs/div 1.0V 20µs/div 2 0.5V 20µs/div 7 0.5V 20µs/div 1.0V 20µs/div DEFLECTION/CRT 3 200mV 20µs/div 1.0V 20µs/div 1.0V 10ms/div 200mV 5ms/div 0.5V 20µs/div 20V 20µs/div CHROMA 1.0V 20µs/div 5 0.5V 1ms/div 16 2.0V 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.
  • Page 59 WAVEFORMS 200V 20µs/div 50V 20µs/div 200mV 1ms/div SOUND 18 10V 5ms/div 0.5V 1ms/div 0.5V 5µs/div 19 10V 5ms/div 0.5V 1ms/div 30 200mV 1ms/div 20 50V 20µs/div 31 200mV 1ms/div 0.5V 1ms/div 26 200mV 1ms/div 32 5.0V 20ms/div 50V 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 60: Power

    WAVEFORMS POWER 33 500mV 5µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. H - 3...

  • Page 61: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB) V801 L503 FB401 TU001 PCB010 (MAIN PCB) SP351 PCB250 (AV PCB)

  • Page 62: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION A3I257H720 CABINET,FRONT ASS'Y HEAT SINK HEAT SINK METAL SPACER COATING CLIP 741WUA0021 SPRING,EARTH 701APJA031 CABINET,FRONT 713WPA0098 GUIDE,REMOCON 7230006856 SHEET,CAUTION 735WPA0439 BUTTON ASS'Y 702APA0100 CABINET,BACK 722A08A055 SHEET,RATING 723000B007 FILM,DECORATION 7232020733 SHEET,BRAND 899HV3T001 HOLDER,ANODE WIRE 762WPA0009 HOLDER,CRT WIRE 8994201000 HOLDER,CRT WIRE HEAT SINK...

  • Page 63: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES R001 R3X181683J R, METAL 68K OHM 1W D405 D97U06R21B DIODE, ZENER MTZJ6.2B T-77 R134 R00106103J RC 10K OHM 1/6W ! D407 D2WTAU02A0 DIODE, SILICON AU02A-EIC R135 R00106272J RC...
  • Page 64 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION RESISTOR COILS &TRANSFORMERS RC....CARBON RESISTOR L101 021LA62R7K COIL 2.7 UH ! L401 022100031A COIL, LINEARITY ELH5L7120 CAPACITORS ! L501 029F000074 COIL, LINE FILTER FET24S-H22502 CC....CERAMIC CAPACITOR ! L503 028H270007 COIL, DEGAUSS 8H270007 CE....
  • Page 65 M3I2-57H SPEC.NO. A053508 O/R NO.

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