Related Manuals for Memorex MT1136A
Summary of Contents for Memorex MT1136A
- Page 1 MT1136A SERVICE MANUAL COLOR TELEVISION RECEIVER ORIGINAL MFR’S VERSION A Design and specifications are subject to change without notice.
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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 ......................SERVICE MODE LIST ..........................CONFIRMATION OF USING HOURS ...................... NOTE FOR THE REPLACING OF MEMORY IC ..................ELECTRICAL ADJUSTMENTS ........................ -
Page 4: General Specifications
G E N E R A L S P E C I F I C A T I O N S G-1.Outline of the Product 13 inch(335.4mmV):Measured diagonally Color CRT 90 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... - Page 5 G E N E R A L S P E C I F I C A T I O N S G-18.Regulation S afety NEMKO FEMKO DEMKO IEC65 SEMKO HOMOLO SABS SISIR AS3159 DENTORI GOST NONE Radiation SABA HOMOLO CISPR13 DENTORI AS/NZS NONE...
- Page 6 G E N E R A L S P E C I F I C A T I O N S G-27.Speaker inches Imp. ohm x W (Typical) W (Typical) G-28.EXT Speaker G-29.Carton Master Carton: Need No Need Content: ---- Material: ---- / ----...
- Page 7 G E N E R A L S P E C I F I C A T I O N S G-33.Magnetic Field BV : +0.45G BV : +0.35G BV : +0.25G BH : 0.18G BH : 0.30G BH : 0.30G BV : -0.15G...
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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: 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 2 seconds. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD. -
Page 10: Electrical Adjustments
ELECTRICAL ADJUSTMENTS 1. BEFORE MAKING ELECTRICAL 1. RF AGC DELAY ADJUSTMENTS 2. VIDEO LEVEL Read and perform these adjustments when repairing the 3. FM LEVEL circuits or replacing electrical parts or PCB assemblies. 4. OSD H 5. CUT OFF CAUTION 6. - Page 11 ELECTRICAL ADJUSTMENTS 2-5: SUB TINT/SUB COLOR 1. H. PHASE Receive the color bar pattern. 2. H. BLK Connect the synchro scope to TP023. 3. V. SIZE Activate the adjustment mode display of Fig. 2-1 and 4. V. POSI press the channel button (4) on the remote control. 5.
- Page 12 ELECTRICAL ADJUSTMENTS [ TV ] OSD H Fig. 2-8 2-12: VCO FREERUN Place the set with Aging Test for more than 10 minutes. Receive the UHF. Disconnect the Antenna while receiving the UHF and set to the Noise screen. Once turn off the Power and turn on the Power again. Approxi.
- Page 13 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.
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Page 14: Major Components Location Guide
MAJOR COMPONENTS LOCATION GUIDE J351 L205 TP201 TU001 FB401 CP101 FOCUS VOLUME SCREEN VOLUME MAIN TP023 J801 D3-1... -
Page 15: Block Diagram
BLOCK DIAGRAM EARPHONE JACK CH. UP V. SIZE/VIDEO/CHROMA/SYNC TU001 IC201 LA76814M-MPB CH. DOWN IC351 AN7511 T351 AUDIO SOUND SOUND TRANS VOL. UP SP351 IF/RF AGC VOL. DOWN DRIVE CF201 Q604, Q605 SAW FILTER VIDEO VIDEO MICON VIDEO POWER BUFFER IC101 OEC3039B Q801 MUTE P00 RED R... -
Page 16: Printed Circuit Boards Main/Crt
PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE R501 W831 CP501 R502 Q401 W847 C503 C502 W846 F501 HEATER TH501 C443 L501 W017 4A 124V CP802B C442 C506_1 CP803B CD802B C440 180V R446 Q802 CD803B Q801 R813 C439 Q803 T401 Q402_1 CP801_1 W019... - Page 17 PRINTED CIRCUIT BOARDS MAIN (CHIP MOUNTED PARTS) SOLDER SIDE...
- Page 18 MICON/TUNER SCHEMATIC DIAGRAM ACCESSORY ANT001 HPAS-2S780 ATC001 TU001 ENV56D67G3 NXC0032-010010 TM101 R25-1028 C004 W828 OS101 W813 PIC-28143SY-2 W810 W811 R133 47 1/4W R136 R143 1.5K CC001 R134 X-RAY SW Q103 2SC1815Y 5V REG. IC103 KIA78L05BP-AT C134 C103 R137 POWER SW Q104 0.1 TF 4.7K...
- Page 19 CHROMA SCHEMATIC DIAGRAM VIDEO VIDEO BUFFER BUFFER Q604 Q605 2SA1015Y 2SA1015Y D609 R652 1SS133 L205 R624 3602038 R660 R662 C628 0.047 M TP201 C610 100P SL C218 3.3 2.2 0.001 Y C217 R208 0.47 CLMP CLMP X-RAY VIDEO R203 TRAP HOR GND VIDEO VIDEO...
- Page 20 DEFLECTION/CRT SCHEMATIC DIAGRAM 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 CD802 CP802A CP802B 2E052503 51048-0510 51048-0510 V-OUT IC401 LA7840 THERMAL PUMP PROTECTION AMP - RED OUT GREEN OUT BLUE OUT Q801...
- Page 21 POWER/SOUND AMP SCHEMATIC DIAGRAM CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501) FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQUES 4A 125V D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME TYPE 4A 125V (F501). DEGAUSE COIL L502 8F140025...
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Page 22: Micon/Tuner
WAVEFORMS MICON/TUNER 200mV. 5ms/div 0.5V. 20µs/div 1V. 0.5ms/div 20V. 20µs/div 0.5V. 20µs/div 0.5V. 20µs/div 0.5V. 20µs/div 200mV. 20µs/div 200mV. 20µs/div 200mV. 5ms/div 200mV. 20µs/div 14 0.5V. 5ms/div CHROMA 1V. 20µs/div 0.5V. 20µs/div 0.5V. 2ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. -
Page 23: Deflection/Crt
WAVEFORMS 50V. 20µs/div 16 1V. 20µs/div 200V. 20µs/div POWER/SOUND AMP 1V. 20µs/div 50mV. 0.5ms/div 10V. 5ms/div DEFLECTION/CRT 200mV. 0.5ms/div 18 0.5V. 5ms/div 5V. 5ms/div 20V. 20µs/div 50V. 20µs/div 2V. 20µs/div 50V. 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram. -
Page 24: Mechanical Exploded View
MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB ASS'Y) L502 ATC001 V801 TU001 PCB010 (MAIN PCB ASS'Y) SP351... -
Page 25: Mechanical Replacement Parts List
MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION A3H202C720 CABINET,FRONT ASS'Y HEAT SINK HEAT SINK METAL SPACER COATING CLIP 701WPJA543 CABINET,FRONT 713WPA0090 GUIDE,REMOCON HEAT SINK 735WPA0381 BUTTON,FRAME 735WPA0382 BUTTON,HOLDER 702WPA0535 CABINET,BACK 722A08A031 SHEET,RATING 7230006818 SHEET,CAUTION 723000A930 FILM,DECORATION 735WPA0396 SPEAKER,HOLDER 741WUA0019 SPRING,EARTH 800WQ00044 FELT SHEET 5x50xT0.5... -
Page 26: Electrical Replacement Parts List
ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS ! R177 R5Y2CF152J R, CEMENT 1.5K OHM 10W IC101 I53F53039B OEC3039B R363 R3X1812R2J R, METAL OXIDE OHM 1W ! IC103 I1K998L050 KIA78L05BP-AT ! R401 R4X5T4104F R, METAL 100K OHM 1/4W IC104... - Page 27 ELECTRICAL REPLACEMENT PARTS LIST RESISTOR RC...... CARBON RESISTOR CAPACITORS CC...... CERAMIC CAPACITOR CE...... ALUMI ELECTROLYTIC CAPACITOR CP...... POLYESTER CAPACITOR CPP....POLYPROPYLENE CAPACITOR CPL....PLASTIC CAPACITOR CMP....METAL POLYESTER CAPACITOR CMPL....METAL PLASTIC CAPACITOR CMPP....METAL POLYPROPYLENE CAPACITOR J2-1...
- Page 28 M3H2-02C SPEC.NO. K983018 O/R NO.