Magnavox MWC20T6 Service Manual Download

Page: 1 / 80

SERVICE MANUAL

Main Section

Specifications

Preparation for Servicing

Adjustment Procedures

Schematic Diagrams

CBA’s

Exploded Views

Parts List

When servicing the deck
mechanism, refer to MK14 Deck
Mechanism Section.

Deck Mechanism Part No.:
N2446FT

″

PURE FLAT

COLOR TV/DVD/VCR

MWC20T6

Summary of Contents for MWC20T6

Page 1: ...Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA s I Exploded Views I Parts List When servicing the deck mechanism refer to MK14 Deck Mechanism Section Deck Mechanism Part No N2446FT 20 PURE FLAT COLOR TV DVD VCR MWC20T6 ...

Page 2: ...mproper service methods may damage the equipment It also is important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE Funai could not possibly know evaluate and advice the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way Consequently Funai has not undertaken any such broad evaluation Accordingly a servicer w...

Page 3: ...the TV DVD VCR 1 8 1 Firmware Renewal Mode 1 9 1 Block Diagrams 1 10 1 Schematic Diagrams CBA s and Test Points 1 11 1 Waveforms 1 12 1 Wiring Diagram TV VCR Section 1 13 1 Wiring Diagram DVD Section 1 13 2 System Control Timing Charts 1 14 1 IC Pin Function Descriptions 1 15 1 Lead Identifications 1 16 1 Exploded Views 1 17 1 Mechanical Parts List 1 18 1 Electrical Parts List 1 19 1 Main Section ...

Page 4: ... m 2 5 Side m m 1 5 2 Tint Control Range deg 30 3 Contrast Control Range dB 6 2 4 Brightness 100 White Full Field Contrast Max ft L 40 24 5 Color Temperature K 9200 Description Condition Unit Nominal Limit 1 Horizontal Resolution TDV 540 TIT 2 CHP 16 Line 350 300 2 Video S N at CN3400 TDV 540 TIT 2 CHP 6 dB 60 55 3 S N Chroma at CN3400 TDV 540 TIT 2 CHP 17 AM dB 58 53 PM dB 58 53 4 Audio Distortio...

Page 5: ...ution R P SP Line 230 200 2 Jitter Low R P SP µs 0 1 0 2 3 S N Chroma AM SP R P SP dB 38 33 PM SP R P SP dB 38 33 4 Wow Flutter JIS UNWTD R P SP 0 25 0 5 Description Condition Unit Nominal Limit 1 Video S N 80 dBµV TV4ch dB 45 40 2 Audio S N W LPF dB 45 40 Description Condition Unit Nominal Limit 1 Audio Output Power R P SP W 1 0 0 8 2 Audio S N W LPF R P SP dB 40 36 3 Audio distortion W LPF 10 dB...

Page 6: ...hen the diode is turned on Do not look directly at the laser beam CAUTION Use of controls and adjustments or doing procedures other than those specified herein may result in hazardous radiation exposure Location Top of DVD mechanism Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin Drive Mechanism Assembly Laser Beam Radiation Laser Pickup Turnta...

Page 7: ... the instrument AC switch in the on position Connect one lead of an ohmmeter to the AC plug prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and if applicable to the coaxial connector If the measured resistance is less than 1 0 megohm or greater than 5 2 megohm an abnormality exists that must be corrected before the instrument is ret...

Page 8: ...nected directly to one conductor of the AC power cord and maybe safety serviced without an isolation transformer only if the AC power plug is inserted so that the chassis is connected to the ground side of the AC power source To confirm that the AC power plug is inserted correctly with an AC voltmeter measure between the chassis and a known earth ground If a voltage reading in excess of 1 0V is ob...

Page 9: ...eat sinks oxide metal film resistors fusible resistors etc G Check that replaced wires do not contact sharp edged or pointed parts H When a power cord has been replaced check that 5 6 kg of force in any direction will not loosen it I Also check areas surrounding repaired locations J Be careful that foreign objects screws solder droplets etc do not remain inside the set K Crimp type wire connector ...

Page 10: ...er cord plug prongs and externally exposed accessible parts RF terminals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc Measuring Method Power ON Insert load Z between B earth ground power cord plug prongs and exposed accessible parts Use an AC voltmeter to measure across both terminals of load Z See Fig 2 and following table Table 2 Leakage curren...

Page 11: ...al With Hot Air Flat Pack IC Desoldering Machine 1 Prepare the hot air flat pack IC desoldering machine then apply hot air to the Flat Pack IC about 5 to 6 seconds Fig S 1 1 2 Remove the flat pack IC with tweezers while applying the hot air 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat ...

Page 12: ...lead of the flat pack IC upward one by one using a sharp pin or wire to which solder will not adhere iron wire When heating the pins use a fine tip soldering iron or a hot air desoldering machine Fig S 1 4 3 Bottom of the flat pack IC is fixed with glue to the CBA when removing entire flat pack IC first apply soldering iron to center of the flat pack IC and heat up Then remove glue will be melted ...

Page 13: ...ers Fig S 1 6 Note When using a soldering iron care must be taken to ensure that the flat pack IC is not being held by glue When the flat pack IC is removed from the CBA handle it gently because it may be damaged if force is applied 2 Installation 1 Using desoldering braid remove the solder from the foil of each pin of the flat pack IC on the CBA so you can install a replacement flat pack IC more ...

Page 14: ...ded to remove any static electricity that may be charged on the body 2 Ground for Workbench Be sure to place a conductive sheet or copper plate with proper grounding 1 MΩ on the workbench or other surface where the semi conductors are to be placed Because the static electricity charge on clothing will not escape through the body grounding band be careful to avoid contacting semi conductors with yo...

Page 15: ...rom the Main CBA due to servicing this switch can not be operated automatically Preparing 2 1 To eject the tape press the STOP EJECT button on the unit or Remote Control 2 When you want to record during the Service mode press the Rec button while depressing SW1211 REC SAFETY SW on the Main CBA Key Adjustment Mode PICTURE Picture adjustment mode Press the PICTURE button to change from BRT Bright CN...

Page 16: ...ed released unplugged unclamped or desoldered P Spring L Locking Tab S Screw CN Connector Unhook Unlock Release Unplug or Desolder e g 2 S 2 two Screws S 2 2 L 2 two Locking Tabs L 2 5 Refer to the following Reference Notes in the Table Step Loc No Part Removal Fig No Remove Unhook Unlock Release Unplug Unclamp Desolder Note 1 Rear Cabinet D1 4 S 1 S 2 S 3A S 3B 2 Tray Chassis Unit D2 D3 D5 Anode ...

Page 17: ...mulated on cloth human body etc during unpacking or repair work To avoid damage of pickup follow next procedures 1 Disconnect Connector CN301 on the DVD Main CBA Unit 2 Short the three short lands of FPC cable with solder before removing the FFC cable CN201 from it If you disconnect the FFC cable CN201 the laser diode of pickup will be destroyed Fig D4 3 Remove DVD Mechanism 3 CAUTION 3 When reass...

Page 18: ... 6 3 T1200DC 5 DVD Main CBA Unit 4 DVD Mechanism 2 Tray Chassis Unit S 7 S 7 Top Shield S 8 S 8 S 8 8 Deck Assembly S 10 S 9 S 11 S 11 S 11 9 Main CBA S 6 S 6 S 5 S 5 S 6 6 Sub CBA 7 Function CBA Fig D2 ...

Page 19: ...1 6 4 T1200DC 3 CRT Anode Cap CRT CBA S 4 S 4 S 4 S 4 Fig D3 A DVD Mechanism Fig D4 View for A Short the three short lands by soldering Either of two places FPC Cable ...

Page 20: ... TUNER MAIN CBA SUB CBA CRT CBA TO SPEAKER TO SPEAKER CL2504A SCREEN CL2501B FOCUS CN1802 CL1201 CN1602 CN1301 CN1803 CL1402 CN1601 CL1401 CL1403 CL2501A CN2571 CN2502 CL2601 CN2503 CN2401 CN2801 CL3801 CN3801 CL3802 CN3802 AC CORD FUNCTION CBA JUNCTION B CBA JUNCTION A CBA Fig D5 CN201 CN301 CN2 CN1 CN2A CN1A CN2501 ...

Page 21: ...s 10 and 17 of the microprocessor with a jumper wire How to enter the Service mode Service mode 1 Use the service remote control unit 2 Turn the power on Use main power on the TV unit 3 To enter the TV mode press CH o p buttons on the TV unit 4 Press DISC MENU button on the service remote control unit Version of micro computer will display on the CRT Ex 057 001 X Ray Protection Test X Ray protecti...

Page 22: ...l unit Then select V TINT V T display 2 Press CH o p buttons on the service remote control unit so that the value of V TINT V T becomes 50 SHARP SHP 1 Press PICTURE button on the service remote control unit Then select SHARP SHP display 2 Press CH o p buttons on the service remote control unit so that the value of SHARP SHP becomes 46 Note BRIGHT data value does not need to be adjusted because thi...

Page 23: ...more than 20 minutes 2 Face the unit to the east Degauss the CRT using a degaussing coil 3 Input the White Raster APL 100 4 Set the color analyzer to the CHROMA mode and after zero point calibration bring the optical receptor to the center on the tube surface CRT 5 Enter the Service mode Press VOL p button on the service remote control unit and select C D mode Display changes C D 7F and Initial Se...

Page 24: ...0 minutes 2 Face the unit to the East and degauss the CRT using a degaussing coil 3 Input the monoscope pattern 4 Adjust the Focus Control on the FBT to obtain a clear picture 8 H Position Adjustment Purpose To obtain correct horizontal position of screen image Symptom of Misadjustment H position may not be properly displayed 1 Enter the Service mode See page 1 7 1 Press 8 button on the remote con...

Page 25: ...s CH o p buttons on the remote control unit so that the monoscope pattern is 90 5 of display size and the circle is round 11 Head Switching Position Adjustment Purpose Determine the Head Switching Position during Playback Symptom of Misadjustment May cause Head Switching Noise or Vertical Jitter in the picture Note Unit reads Head Switching Position automatically and displays it on the screen Uppe...

Page 26: ...ard the bell of the CRT and set it where a uniform red field is obtained 8 Tighten the clamp screw on the Deflection Yoke 13 Convergence Adjustment Purpose To obtain proper convergence of red green and blue beams Symptom of Misadjustment If Convergence Adjustment is incorrect the edge of white letters may have color edges 1 Set the unit to the AUX mode which is located before CH2 then input a dot ...

Page 27: ...htening the Ring Lock 5 Remove the DY Wedges and slightly tilt the Deflection Yoke horizontally and vertically to obtain the best overall convergence 6 Fix the Deflection Yoke by carefully inserting the DY Wedges between CRT and Deflection Yoke ...

Page 28: ... unit 2 Turn the power on Use main power on the TV unit 3 Press DISC MENU button on the service remote control unit to enter the Service mode Refer to How to enter the Service mode on page 1 7 1 4 Press VOL p button on the service remote control unit twice and confirm that OSD indication is 7F FF If needed set it to become 7F FF by pressing CH o p buttons on the service remote control unit 5 Confi...

Page 29: ...to go to TV mode or press STANDBY ON button on the unit to turn the power off 8 Press SELECT button on the remote control unit to put the TV DVD VCR into DVD mode again 9 Press 1 2 3 4 and DISPLAY buttons on the remote control unit in that order Fig d appears on the screen 10 Press CLEAR button on the remote control unit Fig e appears on the screen When OK appears on the screen the factory default...

Page 30: ...Y BLOCK DIAGRAM SDA SCL TO TV PROCESS BLOCK DIAGRAM IC1202 WF3 ENV DET 17 V H SW ENV DET V H SW 16 DVD MAIN POWER 26 2 21 YCA SDA YCA CS DVD AUDIO MUTE 42 5 KEY SWITCH SW1201 SW1203 SW1206 SW1210 5 5 KEY1 CN2401 CN2503 CN1803 KEY SWITCH SW2401 SW2408 14 25 13 SDATA 13 18 SDATA TO DVD SYSTEM CONTROL SERVO BLOCK DIAGRAM DVD SECTION CN1A CN1 6 CN1301 14 SCLK 15 CS 1 CM 12V 5 C CONT 6 FG GND 7 LD CONT...

Page 31: ...ROCESS HEAD AMP 26 REC VIDEO SIGNAL PB VIDEO SIGNAL MODE SP REC 57 32 30 QV QH 6dB AMP TO SYSTEM CONTROL SERVO BLOCK DIAGRAM TO TV PROCESS BLOCK DIAGRAM CYLINDER ASSEMBLY RF SW RF SW 59 V ENV V H SW ENV DET ENV DET TP1402 X1401 3 58MHz VIDEO L 2 HEAD VIDEO R 2 HEAD TP1403 ENV BUFFER DV SYNC DV SYNC 53 24 YCA SCL VIDEO TU VIDEO EXT V IN 14 36 37 39 34 Q1402 BUFFER 58 60 SP EP 54 YCA SDA 55 YCA CS S...

Page 32: ...02 CN1803 SP1801 FUNCTION CBA SPEAKER L CH CN3801 SP801 SP R 1 SP GND 2 SP L 1 SP GND 2 CL3801 DVD AUDIO MUTE SP MUTE 19 19 DVD AUDIO R 18 3 4 18 DVD AUDIO L 16 9 1 16 DVD AUDIO MUTE JK2701 WF19 WF20 WF8 WF7 PB AUDIO SIGNAL DVD AUDIO SIGNAL REC AUDIO SIGNAL DIGITAL AUDIO OUT COXIAL TO SYSTEM CONTROL SERVO BLOCK DIAGRAM TO SYSTEM CONTROL SERVO BLOCK DIAGRAM 2 11 IC1803 AUDIO AMP 7 VOLUME 14 1 AMP A...

Page 33: ...GNAL PROCESS CIRCUIT CHROMA SIGNAL PROCESS CIRCUIT H SYNC PROCESS CIRCUIT V SYNC PROCESS CIRCUIT OSD MIX RBG MATRIX BLIGHT DRIVE AMP HV BLANKING TUNER TUNER FILTER TUNING VXCO 16 11 13 17 14 C SYNC SPOT KILL LINE DVD VCR VCR LINE DVD RED CN1301 7 H DRIVE 1 V DRIVE 8 AFC 2 V RAMP NF 9 ACL CN1301 CN2503 10 DVD C 11 10 11 CN2 8 6 DVD Y 28 Q1403 BUFFER TP1301 BLUE GREEN RED TP1302 TP1303 REC VIDEO SIG...

Page 34: ...ND V501 CRT GND FOCUS SCREEN JK2501 HEATER 1 1 CL2501B CL2501A CN2571 180V 3 3 11 S F HV FOCUS VR SCREEN VR CN2502 4 3 2 RED GREEN BLUE H OUTPUT 1 3 5 4 5 4 3 1 WF13 WF12 WF14 WF10 WF11 RED AMP TP2501 B TP2504 GND TP2506 AFC TO POWER SUPPLY BLOCK DIAGRAM CN1602 CN2503 CL2601 2 3 4 RED 5 GREEN 4 BLUE 3 TO TV PROCESS BLOCK DIAGRAM CN1301 TO TV PROCESS BLOCK DIAGRAM CN1301 REC VIDEO SIGNAL PB VIDEO S...

Page 35: ...L SW CTL 17 17 DVD MAIN POWER 10 10 EV 4V 11 11 EV 4V 14 14 DVD 9V 11 11 DVD ON 3 3V 10 10 EV 3 3V 14 14 EV 9V 13 13 EV 9V 12 12 DVD ON 5V 9 9 EV 3 3V 3 3 EV 1 2V 2 2 EV 1 2V 1 1 EV 1 2V 15 15 PWRCON DVD MAIN CBA UNIT EV 9V DVD ON 5V DVD ON 3 3V EV 3 3V EV 1 2V PWRCON CN1A TO DVD SYSTEM CONTROL SERVO BLOCK DIAGRAM DVD SECTION HOT CN1 CAUTION Fixed voltage or Auto voltage selectable power supply ci...

Page 36: ...S ACTUATOR DRIVE SPINDLE MOTOR DRIVE TRACKING ACTUATOR DRIVE 126 TRAY IN SLD 67 SPDL 66 TRACKING DRIVE 127 FOCUS DRIVE 65 TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM FS FS TS TS TRAY IN 6 SP 5 SP 1 TRAY IN 4 GND 3 SL 2 SL VREF TO SYSTEM CONTROL SERVO BLOCK DIAGRAM TV VCR SECTION CN1 15 16 14 13 12 11 17 18 23 6 4 5 3 1 2 25 24 27 26 63 SL AMP 121 SP ROT 3 3V 124 FD OFST 123 TD OFST SCLK PWRCON PWRCON ...

Page 37: ...GENERAL I O INTERRUPT CONTROLLER TIMER WATCH DOG TIMER REMOTE CONTROL 32BIT CPU STREAM I F EXTERNAL MEMORY I F SDRAM ECC UMAC 100 115 116 113 114 106 104 105 103 62 DEBUG BCU INST CACHE DATA CACHE 152 151 146 144 SDRAM ADDRESS 0 10 IC103 FLASH ROM FLASH ROM 29 36 38 45 DVD VIDEO SIGNAL FDQ 0 15 1 9 16 25 48 FADR 0 19 SDRAM DATA 0 15 PICK UP UNIT TO SYSTEM CONTROL SERVO BLOCK DIAGRAM DVD MAIN CBA U...

Page 38: ...k in the schematic diagram and the parts list Before replacing any of these components read the parts list in this manual carefully The use of substitute replacement parts that do not have the same safety characteristics as specified in the parts list may create shock fire or other hazards Notes 1 Do not use the part number shown on these drawings for ordering The correct part number is shown in t...

Page 39: ...nits use only original replacement parts which are listed with their part numbers in the parts list section of the service manual 4 Mode SP REC 5 Voltage indications for PLAY and REC modes on the schematics are as shown below 6 How to read converged lines 7 Test Point Information 2 3 1 5 0 2 5 PLAY mode STOP mode 5 0 The same voltage for both PLAY STOP modes Indicates that the voltage is not consi...

Page 40: ...1 11 3 Main 1 5 Sensor Schematic Diagram TV VCR Section T1202SCM1 ...

Page 41: ...1 11 4 T1202SCM2 Main 2 5 Schematic Diagram TV VCR Section ...

Page 42: ...1 11 5 T1202SCM3 Main 3 5 Schematic Diagram TV VCR Section ...

Page 43: ...1 11 6 Main 4 5 Junction A Schematic Diagram TV VCR Section T1202SCM4 ...

Page 44: ...pply circuit is used in this unit If Main Fuse F1601 is blown check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply Otherwise it may cause some components in the power supply circuit to fail VOLTAGE CHART Power off mode Ref No 1 4 IC1601 25 7 1 2 Ref No IC1682 Ref No Q1601 Ref No Q1221 Q1602 Q1604 Q1605 Q1606 Q1607 Q160...

Page 45: ...1 11 8 T1202SCSUB1 Sub 1 2 Schematic Diagram TV VCR Section ...

Page 46: ...1 11 9 Sub 2 2 Schematic Diagram TV VCR Section T1202SCSUB2 ...

Page 47: ...1 11 10 T1202SCCRT T1202SCF Function Junction B Schematic Diagram TV VCR Section CRT Schematic Diagram TV VCR Section ...

Page 48: ...1 11 11 T1202SCD1 DVD Main 1 3 Schematic Diagram DVD Section ...

Page 49: ...1 11 12 T1202SCD2 DVD Main 2 3 Schematic Diagram DVD Section ...

Page 50: ...1 11 13 T1202SCD3 DVD Main 3 3 Schematic Diagram DVD Section ...

Page 51: ...nsformer is required NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal For continued protection against risk of fire replace only with same type 4 A 125V fuse CAUTION ATTENTION Utiliser un fusible de rechange de même type de 4A 125V 4A 125V CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F1601 is blown c...

Page 52: ...solation transformer is required NOTE The voltage for parts in hot circuit is measured using hot GND as a common terminal For continued protection against risk of fire replace only with same type 4 A 125V fuse CAUTION ATTENTION Utiliser un fusible de rechange de même type de 4A 125V 4A 125V CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F160...

Page 53: ...1 11 16 R2583 H f0 Adjustment B TP2501 TP2504 GND Sub CBA Top View TV VCR Section BT1200F01022 A ...

Page 54: ...1 11 17 WF11 PIN 5 CN2571 Q2571 Collector WF10 OF CN2503 PIN18 WF19 WF20 PIN2 OF CN2 DVD Y TP2513 WF17 DVD C TP2512 WF18 Sub CBA Bottom View TV VCR Section BT1200F01022 A ...

Page 55: ...1 11 18 WF13 Q2502 Collector WF12 Q2503 Collector WF14 Q2501 Collector CRT CBA Top View TV VCR Section CRT CBA Bottom View TV VCR Section BT1200F01022 B ...

Page 56: ...Junction B CBA Top View TV VCR Section BT1200F01022 C Function CBA Bottom View TV VCR Section Junction B CBA Bottom View TV VCR Section Junction A CBA Top View TV VCR Section Junction A CBA Bottom View TV VCR Section BT1200F01022 D BT1200F01022 E ...

Page 57: ...r Contrast Approx 70 1DIV 2V 5ms TP1402 RF SW 1DIV 0 2V 0 1µs IC1401 Pin 49 1DIV 1V 10ms TP1202 CTL AMP OUT 1DIV 0 25V 20 µs IC1401 Pin 32 1DIV 0 5V 20 µs TP1401 V OUT Upper WF6 Lower WF1 1DIV 0 2V 2DIV 5V 5ms TP1403 ENV 1DIV 0 5V 0 5ms IC1401 PIN9 1DIV 0 5V 0 5ms IC1401 PIN10 1DIV 2V 20 µs TP1305 H OUT 1DIV 200V 20 µs Q2571 COLLECTOR 1DIV 10V 5ms CN2571 PIN 5 1DIV 20V 20µs Q2503 COLLECTOR 1DIV 20...

Page 58: ...5 DVD AUDIO L 4 DVD AUDIO R 3 GND 2 SPDIF 1 EV 1 2V 1 EV 1 2V 2 EV 1 2V 3 GND 4 GND 5 GND 6 GND 7 GND 8 PWRCON 15 EV 3 3V 9 EV 3 3V 10 DVD ON 3 3V 11 DVD ON 5V 12 EV 9V 14 EV 9V 13 GND 5 1 1 B 2 2 B 3 3 GND 4 4 GND 5 5 GND 6 6 26V 7 7 GND 8 8 GND 9 9 GND 10 10 EV 4V 11 11 EV 4V 12 12 GND 13 13 GND 14 14 DVD ON 9V 15 15 GND 16 16 P ON 5V 4 17 17 P SAFETY1 18 18 P SAFETY2 19 19 DVD REMOTE CN1301 CN2...

Page 59: ...ND PWRCON EV 3 3V 8 15 9 10 11 12 CN1A PICK UP UNIT CN201 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TS TS FS CD LD FS GND DVD PD GND CD PD PD MONI DVD LD VREF NU GND B P ON 5V CD DVD D A C NU GND LD DETECTOR FS TS 7 9 11 2 3 6 5 4 TO CN2 SPDIF GND DVD AUDIO R DVD AUDIO L GND 1 2 3 4 5 CN2A DVD C DVD Y GND DVD AUDIO MUTE 6 7 8 9 EV 3 3V DVD ON 3 3V DVD ON 5V EV 9V 14 13 EV 9V DVD MECHANISM...

Page 60: ... 00 V 5 00 V CL 0 00 V 0 25 V 0 00 V SB 1 06 V 1 50 V 1 21 V TL 0 66 V 1 05 V 0 91 V FB 1 99 V 2 60 V 2 17 V SF 1 51 V 1 98 V 1 80 V SM 3 20 V 3 75 V 3 40 V AU 0 26 V 0 65 V 0 44 V AL 4 51 V 5 00 V 5 00 V SS 2 61 V 3 19 V 2 97 V RS Note Symbol Loading Status EJ Eject CL Eject REW Reel SB REW Reel Stop B TL Stop B Brake Cancel FB Brake Cancel FF REW SF FF REW Stop M FF REW SM Stop M FF REW Stop A A...

Page 61: ...IVE PB CTL 66 C F R STILL STILL FRAME ADVANCE ROLL COMPENSATION DRUM SERVO H A SW 15 ROTA AT The first rise of RF SW after a rise in F AD signal ST T1 BL H H T2 Z 1 SP MODE 1 2 3 4 Acceleration Detection Stop Detection Slow Tracking Value Reversal Limit Value ...

Page 62: ...E PB CTL 66 C F R STILL STILL FRAME ADVANCE ROLL COMPENSATION DRUM SERVO H A SW 15 ROTA AT The first rise of RF SW after a rise in F AD signal ST T1 BL H H T2 Z 2 LP EP MODE 1 2 3 4 Acceleration Detection Stop Detection Slow Tracking Value Reversal Limit Value ...

Page 63: ... LD REV LD REV LD FWD LD REV LD REV LD REV 0 2S 0 5S CL EJ SS SS AU AU TL Z ON ON PAUSE SLOW AU AL AL AU SF SM POWER OFF STOP PLAY RS FS STILL SLOW PLAY STOP PLAY SB TL SB FB SM SM SF AL AL RS AU AL SS AU AL SM 0 8S 0 2S 0 3S 1 0S 0 2S 0 5S 0 12S 1 2S 0 2S 1 2S 0 2S 20mS 0 4S 40mS 0 2S 0 2S Refer to STILL SLOW TIMING CHART 1 2 0 3S 0 2S 20mS 40mS 0 4S 0 2S 0 2S 0 2S 0 3S REC SFT SW POWER STOP B PI...

Page 64: ...STOP A LD REV FF LD REV LD REV LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD LD FWD REC PAUSE REC REC REW LD REV LD REV LD REV LD REV LD REV LD REV LD REV PAUSE REC or PAUSE STOP EJECT STOP EJECT STOP EJECT 2 STOP A FF STOP A REW STOP A REC PAUSE PAUSE or REC STOP A EJECT STOP FF STOP REW STOP REC REC REC PAUSE STOP TL TL SM SM SF SF AL AL SM AL AL AL AU AU SM TL SB EJ RS RS SM SM SF FB SM AU AU SS SS...

Page 65: ... Section Tray IN TL221 Sled Drive TP303 Disc Drive TP301 Focus Drive TP304 Tracking Drive TP302 0V 3 3V 0V 1 65V 0V 0V 0V 1 65V 1 65V 1 65V Tray Close Play Play Tray Open Tray Close Disc Rotation Play Disc Stop Tray Open ...

Page 66: ...sed 28 OUT EXT L External Input or Playback Output 29 OUT D REC PB L Delayed Record Playback Control Signal 30 NU Not Used 31 OUT P ON H Power On Signal at High 32 NU Not Used 33 IN REC SAFETY Record Protection Tab Detection 34 IN RESET System Reset Signal Reset L 35 IN XC IN Sub Clock 32kHz 36 OUT XC OUT Sub Clock 32kHz 37 TIMER 5V Vcc 38 IN X IN Main Clock 10 6MHz 39 OUT X OUT Main Clock 10 6MHz...

Page 67: ...nal 81 NU Not Used 82 OUT LD CONT Loading Motor Control Signal 83 NU Not Used 84 IN P DOWN Power Voltage Down Detector Signal 85 NU Not Used 86 NU Not Used 87 IN C FG Capstan Motor Rotation Detection Pulse 88 GND GND AMP 89 NU Not Used 90 IN D PFG Drum Motor Pulse Generator 91 NU Not Used 92 IN AMP VREF IN Standard Voltage Input 93 C Ext Capacitor Connection Port for Analog Amp 94 IN OUT CTL Recor...

Page 68: ...76AMCH BA4GP CAT24WC02WI TE13 MID 32A22F LA71205M MPB E KIA431 AT P M61275FP TF3H M61113FP TF0G TT2140LS YB11 2SK3563 AN17812A Note A Anode K Cathode E Emitter C Collector B Base R Reference S Source G Gate D Drain LA78040A 1 IN 2 GND 3 OUT 1 2 3 2SC2785 F KRA103M AT P KRC103M AT P KTC3199 GR AT P KTC3199 Y AT P KTC3205 Y AT P 2SA1175 F 2SA950 O TE2 F T 2SC2120 O TE2 F T 2SC1627 Y TE2 F T 2SC2482 ...

Page 69: ...6 A1X DG601 CLN551 CLN551 CLN551 B4 Scotch Tape 880 CRT CBA Scotch Tape 880 V501 SP1801 SP801 L1 L1 L1 A2 A3 L3 2 L3 1 L2 TB1 TB17 TL1 1 TL1 1 TL3 TL4 TL4 TL3 TL1 1 TL1 3 TL1 3 TL1 3 TL1 2 TL1 2 TL1 2 DB2 TB3 TL14 TB2 TB18 DVD Main CBA Unit 1B2 W1601 TB13 1B1 Main CBA Function CBA Sub CBA DL2 TL6 TL18 Sensor CBA Sensor CBA See Electrical Parts List for parts with this mark L1 B5 B5 Junction A CBA ...

Page 70: ...1 17 2 T1200PEX Packing FRONT S4 S1 X1 Tape X4 X2 X3 S3 S6 S7 S2 Packing Tape ...

Page 71: ...BLY WX1T9200 004 WX1T9200 004 DG601 DEGAUSSING COIL F 054 LLBH00ZTM054 L1 SCREW P TIGHT 4X18 BIND HEAD GBJP4180 L2 SCREW TAPPING M4X14 DBT14140 L3 1 SCREW P TIGHT 3X10 BIND HEAD GBHP3100 L3 2 SCREW P TIGHT 3X10 BIND HEAD GBHP3100 L4 SCREW P TIGHT 3X10 BIND HEAD GBJP3100 L551 DEFLECTION YOKE LLBY00ZSY010 LLBY00ZSY010 SP801 SPEAKER S0407F01A DSD0807XQ001 SP1801 SPEAKER S0407F01A DSD0807XQ001 TB1 TRA...

Page 72: ...104 C1235 CHIP CERAMIC CAP 1608 B K 0 022µF 50V CHD1JK30B223 C1239 ELECTROLYTIC CAP 22µF 16V M H7 CE1CMAVSL220 C1240 CHIP CERAMIC CAP CH J 560pF 50V CHD1JJ3CH561 C1241 CHIP CERAMIC CAP 1608 B K 4700pF 50V CHD1JK30B472 C1243 ELECTROLYTIC CAP 22µF 16V M LL CE1CMASLH220 C1245 ELECTROLYTIC CAP 47µF 6 3V M H7 CE0KMAVSL470 C1247 ELECTROLYTIC CAP 47µF 6 3V M H7 CE0KMAVSL470 C1251 CHIP CERAMIC CAP 1608 B ...

Page 73: ...IP CERAMIC CAP F Z 1µF 10V CHD1AZ30F105 C1814 ELECTROLYTIC CAP 2 2µF 50V M H7 CE1JMAVSL2R2 C1815 ELECTROLYTIC CAP 100µF 16V M H7 CE1CMAVSL101 C1816 CHIP CERAMIC CAP 1608 CH J 100pF 50V CHD1JJ3CH101 C1818 CHIP CERAMIC CAP F Z 1µF 10V CHD1AZ30F105 C1819 CHIP CERAMIC CAP F Z 1µF 10V CHD1AZ30F105 C1821 ELECTROLYTIC CAP 470µF 16V M CE1CMASDL471 Ref No Description Part No C1822 ELECTROLYTIC CAP 470µF 16...

Page 74: ...CARBON RES 1 4W J 47 Ω RCX4JATZ0470 Ref No Description Part No R1041 CARBON RES 1 4W J 12k Ω RCX4JATZ0123 R1042 CHIP RES 1 10W J 27k Ω RRXAJR5Z0273 R1043 CARBON RES 1 4W J 3 9k Ω RCX4JATZ0392 R1044 CARBON RES 1 4W J 200 Ω RCX4JATZ0201 R1045 CHIP RES 1 10W J 150 Ω RRXAJR5Z0151 R1046 PCB JUMPER D0 6 P5 0 JW5 0T R1048 CHIP RES 1608 1 10W 0 Ω RRXAZR5Z0000 R1052 CHIP RES 1 10W J 220k Ω RRXAJR5Z0224 R10...

Page 75: ... Ω RRXAJR5Z0123 R1421 CHIP RES 1 10W J 8 2k Ω RRXAJR5Z0822 Ref No Description Part No R1422 CHIP RES 1 10W J 180 Ω RRXAJR5Z0181 R1424 CHIP RES 1 10W J 100k Ω RRXAJR5Z0104 R1425 CHIP RES 1 10W J 82k Ω RRXAJR5Z0823 R1426 CHIP RES 1 10W J 2 2k Ω RRXAJR5Z0222 R1427 CHIP RES 1 10W J 820 Ω RRXAJR5Z0821 R1428 CHIP RES 1 10W J 680k Ω RRXAJR5Z0684 R1429 CHIP RES 1 10W J 1 2k Ω RRXAJR5Z0122 R1431 CHIP RES 1...

Page 76: ...702 JACK RCA PCB L 01 AV1 05 023 JXRL010RP042 JK1703 RCA JACK RED PB FREE AV 3A 57H JYRL010SNJ01 JK1801 MINIATURE JACK PB FREE CKX 035 318AZ4 JYSL010SNJ01 JS1601 PCB JUMPER D0 6 P5 0 JW5 0T PS1601 THERMISTOR ZPB45BL3R0A QNBZ45BL3R0A RS1201 REMOTE RECEIVER PIC 37042LU USESJRSKK033 SF1002 FILTER CERAMIC BAND PASS SAFHS45M7VAMZ00B05 FBB456LMR005 SG1601 GAP FNR G3 10D FAZ000LD6005 T1601 SWITCHING TRAN...

Page 77: ...99 Y AT P NQSYKTC3199P Q2618 TRANSISTOR 2SA950 O TE2 F T QQS002SA950F Q2619 TRANSISTOR 2SC2785 F QQSF02SC2785 Ref No Description Part No Q2701 TRANSISTOR 2SC2785 F QQSF02SC2785 RESISTORS R2201 CHIP RES 1 10W J 47k Ω RRXAJR5Z0473 R2202 CHIP RES 1 10W J 47k Ω RRXAJR5Z0473 R2203 CHIP RES 1 10W J 47k Ω RRXAJR5Z0473 R2501 CHIP RES 1 10W J 39k Ω RRXAJR5Z0393 R2504 CHIP RES 1 10W J 15k Ω RRXAJR5Z0153 R25...

Page 78: ...RANSISTOR 2SC2482 T6FUNAIF M QRSZ2SC2482F RESISTORS R2502 CARBON RES 1 4W J 1 5k Ω RCX4JATZ0152 R2503 CARBON RES 1 4W J 1 5k Ω RCX4JATZ0152 R2507 CHIP RES 1 10W J 33 Ω RRXAJR5Z0330 R2508 CHIP RES 1 10W J 33 Ω RRXAJR5Z0330 R2509 CHIP RES 1 10W J 33 Ω RRXAJR5Z0330 R2510 CARBON RES 1 4W J 5 6k Ω RCX4JATZ0562 R2511 CARBON RES 1 4W J 5 6k Ω RCX4JATZ0562 R2512 CARBON RES 1 4W J 5 6k Ω RCX4JATZ0562 Ref N...

Page 79: ...MWC20T6 T1202UC 2006 03 17 ...

Page 80: ...er to the non A version original Service Manual Rating Label Suffix A 20 PURE FLAT COLOR TV DVD VCR MWC20T6 Different parts from the non A version model MWC20T6 Ref No Description Part No MECHANICAL PARTS A3 RATING LABEL T1252UC CLN551 WIRE ASSEMBLY CRT GND WX1L7820 003 DG601 DEGAUSSING COIL AL ZTM054A LLBH00ZTM069 TB19 Not Used S1 CARTON T1252UC 1EM424127 S2 STYROFOAM TOP T1201UB 1EM020851 S3 STY...

Search results

Summary of Contents for MWC20T6

Reviews:

Related manuals for MWC20T6

Brands by name

Popular brands

Magnavox MWC20T6, Service Manual

Search results

Summary of Contents for MWC20T6

Reviews:

Related manuals for MWC20T6

Brands by name

Popular brands