Memorex MT1134 Service Manual
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Memorex MT1134 Service Manual

Memorex mt1134 color television receiver service manual
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MT1134

SERVICE MANUAL

COLOR TELEVISION RECEIVER
ORIGINAL
MFR'S VERSION B
Design and specifications are subject to change without notice.

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Summary of Contents for Memorex MT1134

  • Page 1: Service Manual

    MT1134 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 13 inch / 335.4mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 1Speaker Position Bottom Size 3 Inch Impedance Sound Output 1.0 W 10%(Typical) 0.8 W NTSC3.58+4.43 /PAL60Hz G - 2...
  • Page 5 GENERAL SPECIFICATIONS Color Stream Channel(TV/Cable) CH Label Sleep Timer Sound Mute V-chip Rating G - 8 OSD Language English French Spanish G - 9 Clock and Sleep Timer Max Time 120 Min Timer Step On/Off Timer Program(On Timer / Off Timer) 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 Energy Star Power On Memory Favorite CH G - 1 2 Accessories Owner's Manual Language English / Spanish...
  • Page 7 GENERAL SPECIFICATIONS Gross (Approx.) 11.0kg ( 24.4lbs) G - 1 6 C arto n Master Carton Content ---- Sets Material Dimensions W x D x H(mm) x -- x -- Description of Origin Gift Box Material Double/Brown Dimensions W x D x H(mm) x 408 x 380 Design...

  • 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: When Replacing Eeprom (Memory) Ic

    WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. Table 1 Enter DATA SET mode by setting VOLUME to minimum.

  • Page 13: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL 2. BASIC ADJUSTMENTS ADJUSTMENTS 2-1: CUT OFF Read and perform these adjustments when repairing the Adjust the unit to the following settings. circuits or replacing electrical parts or PCB assemblies. R.DRIVE=10, B.DRIVE=10, R.BIAS=64, G.BIAS=64, B.BIAS=64, BRI.CENT=120, CONT.MAX=40. CAUTION Place the set with Aging Test for more than 15 minutes.
  • Page 14 ELECTRICAL ADJUSTMENTS 2-8: OSD HORIZONTAL Activate the adjustment mode display of Fig. 1-1. Press the VOL. UP/DOWN button on the remote control until the difference of A and B becomes minimum. (Refer to Fig. 2-3) "A" Fig. 2-1 00 OSD H Fig.

  • Page 15: Purity And Convergence

    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 16 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CD803 CRT PCB CP806 TU001 FB401 TP022 TP023 CP801 CP502 S501B CD501 S501A CD101A SPEAKER CD101B MAIN PCB...

  • Page 17: Block Diagram

    BLOCK DIAGRAM TU001 EARHONE JACK 11 12 J1001 CH. DOWN IC1001 AN7511 VOL. DOWN SPEAKER SOUND AMP CH. UP SP1001 RGB Proc.2 VOL. UP Q801 OSD SW CONTRAST BRIGHTNESS RED OUT RGB OUTPUT Chroma Proc. Stage DRIVE Q802 ACC/C-BPF CUT OFF APC/KILLER OS101 GREEN OUT...

  • Page 18: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE VERSO. VOIR CRITIQUE R403 W066 PIECE SERVICE INFORMATIONPOUR C406 ATTENTION C435 W003 C442 D405 C403 D410 W008 CD803A CP803A C434 D412 FB401 R408 W845 W801 Q402 W001 W062 R427 W011 HS402 R542 Q401 S801X R446...
  • Page 19 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE R701 R703 R702 R704 R128 R101 IC199 R1003 R1005 R610 R609 R1004 R627 TCD460A R129 R420 R418 TMD604A...
  • Page 20 MICON/CHROMA/TUNER SCHEMATIC DIAGRAM (MAIN PCB) R621 220 1/4W H.CTL Q607 KTC3198 R618 FROM/TO DEFLECTION/CRT C118_1 R608 CLAMP 680 1/4W 6.3V R110 10K 1/4W C101 C632_1 V_OUT R109 10K 1/4W 0.01 B C630_1 V_FEEDBACK AT+5V ABCL H_OUT C629_1 R123 P.CON+5V X-RAY 0.01 10K 1/4W 1 CNVSS...
  • Page 21 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) CAUTION :FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501) FUSE. ATTENTION 4A 125V :POUR UNE PROTECTION CONTINUE LES RISQUES D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME TYPE 4A 125V (F501). TO SOUND/AV R517 D505...
  • Page 22 DEFLECTION/CRT SCHEMATIC DIAGRAM (MAIN PCB) CD802 CP802A B2013H02-5P CP802B B2013H02-5P FROM MICON/CHROMA/TUNER CLAMP CLAMP CLAMP CLAMP CLAMP G.OUT G.OUT G.OUT G.OUT G.OUT R.OUT R.OUT R.OUT R.OUT R.OUT B.OUT B.OUT B.OUT B.OUT B.OUT V-OUT IC IC401 LA78040N-E CD803 CP803A B2013H02-3P CP803B B2013H02-3P HEATER HEATER HEATER...
  • Page 23 SOUND/AV SCHEMATIC DIAGRAM (MAIN PCB) RCA JACK WHITE TO MICON/CHROMA/TUNER J703 (FRONT) AV1-09D-4 ACCESSORY R703 AUDIO 2 AUDIO_IN2 A_IN R704 V_IN VIDEO 2 VIDEO_IN2 RCA JACK YELLOW TM101 J702 RC-DW110 AV1-09D-3 ANT001 HPAS-2S400 EAR PHONE_JACK J1001 MSJ-035-12A_PC R1007 68 1/2W FROM TV POWER CD101A SPEAKER...

  • Page 24: Micon/Chroma/Tuner

    WAVEFORMS MICON/CHROMA/TUNER 1 0.5V 2ms/div 6 1V 20 s/div 200V 20 s/div 20V 20 s/div 1V 20 s/div 10V 5ms/div DEFLECTION/CRT 10V 5ms/div 3 200mV 20 s/div 8 0.5V 5ms/div 0.5V 5ms/div 9 20V 20 s/div 50V 20 s/div 10 2V 20 s/div 5 1V 20 s/div 15 50V 20 s/div NOTE: The following waveforms were measured at the point of the corresponding...

  • Page 25: Sound/Av

    WAVEFORMS 16 50V 20 s/div SOUND/AV 0.5V 1ms/div 1V 1ms/div 200mV 500 s/div 20 500mV 20 s/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 26: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB ASS'Y) L503 FB401 TU001 V801 101D 101C PCB010 (MAIN PCB ASS'Y) 101B SP1001 101A...

  • Page 27: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION 7A701A125A FRONT,CABI ASS'Y 101A 701WPJC694 CABINET,FRONT 101B 713WPAA145 GUIDE,REMOCON 101C 735WPBB122 BOTTON,FRAME 101D 735WPAA679 BUTTON,BASE A3R006V740 CABINET,BACK ASS'Y 722A08A149 SHEET,RATING 735WPA0396 SPEAKER,HOLDER 741WUA0019 SPRING,EARTH 800WR0A011 SHEET CRT SUPPORT (D) 8994101000 HOLDER,CRT WIRE 8121J50B54 SCREW,TAP TITE(P) GW20...

  • Page 28: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES R402 R3T181010J R,METAL OXIDE OHM 1W ! D505 D28T21DQN9 DIODE SCHOTTKY 21DQ09N-TA2B1 R3K581010J R,METAL OXIDE OHM 1W D506 D97U01801B DIODE,ZENER MTZJ18B T-77 R404 R63581010J R,FUSE OHM 1W D507...
  • Page 29 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION MISCELLANEOUS CP801 069W01001A CONNECTOR PCB SIDE 003P-2100 CD101A 06CH012002 CORD CONNECTOR CH012002 CD101B 06CH012003 CORD CONNECTOR CH012003 CP802A 067U005049 WIRE HOLDER B2013H02-5P CP802B 067U005049 WIRE HOLDER B2013H02-5P CP803A 067U003029 WIRE HOLDER B2013H02-3P CP803B 067U003029...
  • Page 30 M3R0-06V SPEC.NO. K443037 O/R NO.
  • Page 31 CLASS 1 LASER PRODUCT MT1134 SERVICE MANUAL COLOR TELEVISION RECEIVER REVISION 1 MFR’S VERSION A MFR’S VERSION V801 A34AGT13X98(L) A34JXV70X53N45 Please file the revision with the original version.
  • Page 32 Change of CRT ELECTRICAL REPLACEMENT PARTS LIST MFR'S VERSION B MFR'S VERSION A PART NO. DESCRIPTION PART NO. DESCRIPTION REF. NO. ! V801 098Q1404B2 CRT W/DY A34AGT13X98(L) 098Y1404B9 CRT W/DY A34JXV70X53N45 SPEC.NO. M3R0-06X O/R NO. K4X3003...
  • Page 33 MT1134 SERVICE MANUAL COLOR TELEVISION RECEIVER REVISION 2 MFR’S VERSION C MFR’S VERSION V801 IC101 A34JXV70X53N45 OEC7091B A34AGT13X98(L) OEC7091C Please file the revision with the original version.
  • Page 34 MICON VERSION UP ELECTRICAL REPLACEMENT PARTS LIST MFR'S VERSION A MFR'S VERSION C PART NO. DESCRIPTION PART NO. DESCRIPTION REF. NO. IC101 I56F07091B IC OEC7091B I56F07091C IC OEC7091C MAIN PCB ASS'Y (VERSION A) MAIN PCB ASS'Y (VERSION C) PCB010 A3R002X010 A3R002X010 TMD604B TMD604B...

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