Magnavox sylvania mwd2205 Service Manual
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Magnavox sylvania mwd2205 Service Manual

Dvd player & video cassette recorder
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See also: Owner's Manual
SERVICE MANUAL
Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA's
I Exploded Views
I Parts List
VIDEO CASSETTE RECORDER
MWD2205
DVD PLAYER &
DVC840F
When servicing the deck
mechanism, refer to MK14 Deck
Mechanism Section.
Deck Mechanism Part No.:
N2440FL, N2460FL
DVC865F

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Summary of Contents for Magnavox sylvania mwd2205

  • Page 1 SERVICE MANUAL Main Section When servicing the deck I Specifications mechanism, refer to MK14 Deck I Preparation for Servicing Mechanism Section. I Adjustment Procedures I Schematic Diagrams Deck Mechanism Part No.: I CBA’s I Exploded Views N2440FL, N2460FL I Parts List DVD PLAYER &...
  • Page 2 IMPORTANT SAFETY NOTICE Proper service and repair is important to the safe, reliable operation of all Funai Equipment. The service procedures recommended by Funai and described in this service manual are effective methods of performing service operations. Some of these service special tools should be used when and as recommended.

  • Page 3: Table Of Contents

    MAIN SECTION DVD PLAYER & VIDEO CASSETTE RECORDER DVC840F/MWD2205/ DVC865F Main Section I Specifications I Preparation for Servicing I Adjustment Procedures I Schematic Diagrams I CBA’s I Exploded Views I Parts List TABLE OF CONTENTS Specifications ................1-1-1 Laser Beam Safety Precautions .

  • Page 4: Specifications

    SPECIFICATIONS < VCR Section > Description Unit Minimum Nominal Maximum Remark 1. Video 1-1. Video Output (PB) Vp-p SP Mode 1-2. Video Output (R/P) Vp-p SP Mode, 1-3. Video S/N Y (R/P) W/O Burst 1-4. Video Color S/N AM (R/P) SP Mode 1-5.
  • Page 5 < DVD Section > Item Conditions Unit Nominal Limit 75 Ω load 1. Video Output ± 0.1 75 Ω load 2. Coaxial Digital Out mVpp ± 50 3. Audio (PCM) 3-1. Output Level 1 kHz, 0 dB Vrms 3-2. S/N 3-3.

  • Page 6: Laser Beam Safety Precautions

    LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin. The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep your eyes at least 30 cm away from the pickup lens when the diode is turned on.

  • Page 7: Important Safety Precautions

    IMPORTANT SAFETY PRECAUTIONS Product Safety Notice Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not K.
  • Page 8 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, and wires have been returned to their original positions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety standards. 1.

  • Page 9: Standard Notes For Servicing

    STANDARD NOTES FOR SERVICING Circuit Board Indications Pb (Lead) Free Solder 1. The output pin of the 3 pin Regulator ICs is When soldering, be sure to use the Pb free solder. indicated as shown. How to Remove / Install Flat Pack-IC Top View Bottom View 1.
  • Page 10 3. The flat pack-IC on the CBA is affixed with glue, so With Soldering Iron: be careful not to break or damage the foil of each 1. Using desoldering braid, remove the solder from pin or the solder lands under the IC when all pins of the flat pack-IC.
  • Page 11 2. Installation With Iron Wire: 1. Using desoldering braid, remove the solder from 1. Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder the foil of each pin of the flat pack-IC on the CBA flux which is applied to all pins of the flat pack-IC, so you can install a replacement flat pack-IC more you can remove it easily.
  • Page 12 Instructions for Handling Semi- conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 MΩ) that is properly grounded to remove any static electricity that may be charged on the body.

  • Page 13: Preparation For Servicing

    PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the [PLAY] button.

  • Page 14: Cabinet Disassembly Instructions

    CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart Removal This flowchart indicates the disassembly steps to gain Remove/*Unhook/ Loc. Part Fig. Unlock/Release/ Note access to item(s) to be serviced. When reassembling, Unplug/Desolder follow the steps in reverse order. Bend, route, and dress the cables as they were originally. [11] Main CBA D6 ---------- ↓...
  • Page 15 5. Before installing the Deck Assembly, be sure to place the pin of LD-SW on Main CBA as shown in Fig. D6. Then, install the Deck Assembly while CN401 (S-3) aligning the hole of Cam Gear with the pin of LD- CN601 SW, the shaft of Cam Gear with the hole of LD-SW (S-3)
  • Page 16 (S-7) (S-7) (S-7) (S-8) [8] VCR Chassis Unit Fig. D5 1-6-3 H9801DC...
  • Page 17 Cylinder Assembly FE Head ACE Head Assembly [9] Deck Assembly SW512 LD-SW (S-11) [11] Main CBA [9] Deck Assembly Cam Gear (S-9) [11] Main CBA Hole [10] DVD Shaft (S-10) Open/Close CBA Hole Desolder LD-SW Lead with [11] Main CBA blue stripe From From...
  • Page 18 3. HOW TO EJECT MANUALLY 1. Remove the Top Case, Front Assembly and Top Bracket. 2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors. 3. While lifting up the DVD Mecha, rotate the roulette in the direction of the arrow as shown below. 4.

  • Page 19: Electrical Adjustment Instructions

    ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: “CBA” is abbreviation for Head Switching Position “Circuit Board Assembly.” Adjustment NOTE: Purpose: To determine the Head Switching position 1. Electrical adjustments are required after replacing during playback. circuit components and certain mechanical parts. Symptom of Misadjustment: May cause Head It is important to do these adjustments only after Switching noise or vertical jitter in the picture.

  • Page 20: How To Initialize The Dvd Player & Vcr

    HOW TO INITIALIZE THE DVD PLAYER & VCR To put the program back at the factory-default, initialize the DVD player & VCR as the following procedure. < DVD Section > 1. Press [DVD], [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. Fig.

  • Page 21: Firmware Renewal Mode

    FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. the checksum in (*2) of Fig. e. 2. To put the DVD player into version up mode, press " ******* " differ depending on the models. [DVD], [9], [8], [7], [6], and [SEARCH MODE] F/W Version Up Mode Model No : *******...

  • Page 22: Function Indicator Symbols

    FUNCTION INDICATOR SYMBOLS Note: If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by pressing [POWER] or [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds. Cause Indicator Active When reel or capstan mechanism is not...

  • Page 23: Block Diagrams

    BLOCK DIAGRAMS <VCR SECTION> Servo / System Control Block Diagram 1-11-1 H9801BLS...
  • Page 24 Video Block Diagram 1-11-2 H9801BLV...
  • Page 25 Audio Block Diagram ( DVC840F, MWD2205 ) 1-11-3 H9801BLA...
  • Page 26 Audio Block Diagram ( DVC865F ) H9802BLA 1-11-4...
  • Page 27 Hi-Fi Audio Block Diagram ( DVC865F ) H9802BLH 1-11-5...
  • Page 28 Power Supply Block Diagram 1-11-6 H9801BLP...
  • Page 29 BLOCK DIAGRAMS <DVD SECTION> DVD System Control / Servo Block Diagram 1-11-7 H9801BLSD...
  • Page 30 Digital Signal Process Block Diagram 1-11-8 H9801BLD...
  • Page 31 DVD Video / Audio Block Diagram 1-11-9 H9801BLVD...

  • Page 32: Schematic Diagrams / Cba's And Test Points

    SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes WARNING Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
  • Page 33 LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MÊME TYPE. RISK OF FIRE-REPLACE FUSE AS MARKED.
  • Page 34 Main 1/8 Schematic Diagram < VCR Section > MAIN 1/8 Ref No. Position IC501 TRANSISTORS Q501 Q506 CONNECTORS CN501 CN502 CN504 VARIABLE RESISTOR VR501 TEST POINTS TP505 TP513 H9801SCM1 1-12-3...
  • Page 35 Main 2/8 & Sensor Schematic Diagram < VCR Section > MAIN 2/8 Ref No. Position TRANSISTORS Q563 Q565 Q566 Q567 TEST POINTS TP502 TP506 TP507 H9801SCM2 1-12-4...
  • Page 36 Main 3/8 Schematic Diagram < VCR Section > MAIN 3/8 Ref No. Position IC301 TRANSISTORS Q301 Q302 Q303 Q421 Q422 Q425 Q426 CONNECTOR CN253 TEST POINTS TP301 TP302 H9801SCM3 1-12-5...
  • Page 37 Main 4/8 Schematic Diagram < VCR Section > MAIN 4/8 Ref No. Position IC1201 IC1402 TRANSISTORS Q1201 Q1202 Q1204 Q1351 Q1385 CONNECTOR CN1601 H9801SCM4 1-12-6...
  • Page 38 Main 5/8 Schematic Diagram < VCR Section > MAIN 5/8 Ref No. Position IC751 TRANSISTORS Q391 AA-3 Q762 Q763 TEST POINTS TP751 AA-2 TP753 AA-2 TP754 AA-2 1-12-7 H9801SCM5...
  • Page 39 Main 6/8 & DVD Open/Close Schematic Diagram < VCR Section > MAIN 6/8 Ref No. Position IC1002 AD-4 IC1004 AD-3 TRANSISTORS Q052 AG-4 Q055 AF-3 Q056 AG-3 Q057 AE-3 Q1004 AE-2 Q1005 AF-2 Q1006 AG-2 Q1011 AD-2 Q2002 AF-1 Q2013 AD-1 CONNECTORS CN1001...
  • Page 40 Main 7/8 Schematic Diagram < VCR Section > MAIN 7/8 Ref No. Position CAUTION ! CAUTION ! NOTE: IC1001 AK-1 Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. For continued protection against fire hazard, The voltage for parts in hot circuit is measured using TRANSISTORS If Main Fuse(F1001)is blown , check to see that all components in the power supply...
  • Page 41 Main 8/8 Schematic Diagram < VCR Section > ( DVC865F ) H9802SCM8 1-12-10...
  • Page 42 DVD Main 1/3 Schematic Diagram < DVD Section > DVD MAIN 1/3 1 NOTE: Ref No. Position Either IC461 or IC462 is used for DVD MAIN CBA UNIT. IC201 IC202 IC301 IC461 IC462 TRANSISTORS Q251 Q252 Q253 Q254 CONNECTORS CN201 CN301 CN401 1-12-11...
  • Page 43 DVD Main 2/3 Schematic Diagram < DVD Section > DVD MAIN 2/3 Ref No. Position IC101 CONNECTOR CN702 H9801SCD2 1-12-12...
  • Page 44 IC101 Voltage Chart ~ : Voltage is not consistent ----- : Not used Unit : Volts PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- -----...
  • Page 45 DVD Main 3/3 Schematic Diagram < DVD Section > DVD MAIN 3/3 Ref No. Position IC103 IC501 IC502 IC601 CONNECTOR CN601 H9801SCD3 1-12-14...
  • Page 46 Main CBA Top View CAUTION ! CAUTION ! Because a hot chassis ground is present in the power Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. For continued protection against fire hazard, supply circut, an isolation transformer must be used.
  • Page 47 Main CBA Bottom View CAUTION ! CAUTION ! Because a hot chassis ground is present in the power Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. For continued protection against fire hazard, supply circut, an isolation transformer must be used.

  • Page 48: Waveforms

    WAVEFORMS NOTE: Input VCR: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) (WF1~WF3, WF10~WF15) DVD: POWER ON (STOP) MODE (WF4~WF6) CD: 1kHz PLAY (WF7~WF9) TP751 Pin 8 of CN1601 Pin 13 of CN1601 VIDEO-Y VIDEO-Y 0.2V 0.2V 20µs AUDIO-L AUDIO-L 0.5ms 0.5ms V-OUT E-E V-OUT E-E...
  • Page 49 NOTE: Input VCR: COLOR BAR SIGNAL (WITH 1KHz AUDIO SIGNAL) (WF1~WF3, WF10~WF15) DVD: POWER ON (STOP) MODE (WF4~WF6) CD: 1kHz PLAY (WF7~WF9) Pin 12 of TU701 WF13 WF10 Pin 2 of TU701 MOD-A 0.5V 0.2ms PLL-DATA WF11 Pin 6 of TU701 WF14 Pin 14 of TU701 MOD-V...

  • Page 50: Wiring Diagram < Vcr Section

    WIRING DIAGRAM < VCR SECTION > 1-14-1 H9801WI...

  • Page 51: Wiring Diagram < Dvd Section

    WIRING DIAGRAM < DVD SECTION > H9801WID 1-14-2...

  • Page 52: System Control Timing Charts

    SYSTEM CONTROL TIMING CHARTS < VCR Section > Mode SW: LD-SW LD-SW Position detection A/D Input voltage Limit Symbol (Calculated voltage) 3.76 V ~ 4.50 V (4.12 V) 4.51 V ~ 5.00 V (5.00 V) 0.00 V ~ 0.25 V (0.00 V) 1.06 V ~ 1.50 V (1.21 V) 0.66 V ~ 1.05 V (0.91 V) 1.99 V ~ 2.60 V (2.17 V)
  • Page 53 Still/Slow Control Frame Advance Timing Chart 1) SP Mode 18 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value PB CTL Reversal Limit Value 20ms...
  • Page 54 2) LP/SLP Mode 18 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value PB CTL Reversal Limit Value 20ms 27 C-F/R 79 H-A-SW 78 C-ROTA...
  • Page 55 EJECT ST-S/ END-S "OFF" CASS.LOAD LD-FWD 0.2S LD-REV 0.7S LD-FWD 0.4S LD-FWD 0.2S LD-REV 0.2S LD-FWD 0.5S LD-REV STOP(A) PLAY LD-FWD PLAY LD-FWD LD-REV 0.2S LD-FWD PLAY PLAY PAUSE (SLOW) LD-FWD STILL(SLOW) PLAY LD-REV 0.2S LD-FWD PLAY STOP /EJECT LD-REV STOP(A) Fig.
  • Page 56 STOP(A) STOP LD-REV 0.2S LD-FWD STOP /EJECT 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-REV 0.2S LD-FWD STOP /EJECT LD-REV 1.0S LD-FWD 0.5S LD-REV STOP(A) LD-FWD PAUSE LD-FWD 2.5S Short REV LD-REV 0.2S LD-FWD REC PAUSE REC or PAUSE STOP /EJECT LD-FWD 1.5S LD-REV 0.2S...
  • Page 57 < DVD Section > Tray Close ~ Play / Play ~ Tray Open Tray Disc Disc Tray Play Close Rotation Stop Open 3.3V Tray IN (TL221) Sled Drive 1.65V (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) 1.65V Tracking Drive (TP302) 1-15-6 D6N4HTI...

  • Page 58: Ic Pin Function Descriptions

    IC PIN FUNCTION DESCRIPTIONS < VCR Section > Signal Active Mark Function Name Level Comparison Chart of Models and Marks Video Head OUT RF-SW Switching Model Mark Pulse DVC840F Dummy V-sync MWD2205 H/Hi-z SYNC Output DVC865F System Reset IC501 (SERVO/SYSTEM CONTROL/OSD) IN RESET Signal (Reset = “H”...
  • Page 59 Signal Active Signal Active Mark Function Mark Function Name Level Name Level Composite DVD Power VIDEO- DVD- Video Signal Monitor Signal POW- Output (P-off = “L”, MONITOR P-on = “H”) Vss2 Vss2 N.U. Not Used Composite IN VIDEO-IN Video Signal Tuner Stereo/ ST/SAP- Input...
  • Page 60 Signal Active Mark Function Name Level RF Conv. ON/ VCR/TV- OFF Signal (TV = “L” / VCR = “H”) Color Phase Rotary OUT C-ROTA Changeover Signal Video Head OUT H-A-SW Amp Switching Pulse Head Amp H-A- Comparator COMP Signal Notes: Abbreviation for Active Level: PWM ----- Pulse Wide Modulation A/D -------- Analog - Digital Converter...

  • Page 61: Lead Identifications

    LEAD IDENTIFICATIONS KRA103M 2SC1815-GR(TPE2) KIA4558P KRC103M KTC3198(Y) KTA1266(GR) KTC3203(Y) KTA1267(Y) KTC3193(Y) KTC3199(Y,BL) E C B E C B MM1637XVBE EL817A CD4053BNSR PQ1LAX95MSPQ RN1511(TE85R) 1: VREF 2: GND 3: VC 4: VIN 5: VOUT B1 E B2 BA5888FP-E2 LA72670BM-MPB-E MN101D08DEK 2SK3757(Q) PT204-6B-12 Note: A: Anode...

  • Page 62: Exploded Views

    EXPLODED VIEWS Cabinet 2L071 2L071 2L071 2L021 2L021 2L071 2L021 L0-9 2L082 L0-9 W004 [ A,C ] W006 [ B] Sensor CBA 2L021 2L062 2L051 DVD Main Main CBA 2B11 CBA Unit 2L012 Sensor CBA 2B15 2B16 These FFC cables are included in 1B2 (DVD mechanism).
  • Page 63 Packing Unit 1-18-2 H9801PEX...

  • Page 64: Mechanical Parts List

    MECHANICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Mark Description Part No. # have special characteristics important to safety. STYROFOAM H9680UD 0VM204474E Before replacing any of these components, read UNIT, BAG E5500UD 0VM411683 carefully the product safety notice in this service ACCESSORIES manual.

  • Page 65: Electrical Parts List

    ELECTRICAL PARTS LIST PRODUCT SAFETY NOTE: Products marked with a Ref. No. Mark Description Part No. # have special characteristics important to safety. C305 CHIP CERAMIC CAP . CH J 100pF/50V CHD1JJBCH101 Before replacing any of these components, read C307 CHIP CERAMIC CAP .
  • Page 66 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C455 ELECTROLYTIC CAP . 22µF/6.3V M H7 CE0KMAVSL220 C541 CHIP CERAMIC CAP . F Z 0.1µF/50V CHD1JZB0F104 C456 ELECTROLYTIC CAP . 10µF/16V M H7 CE1CMAVSL100 C544 ELECTROLYTIC CAP . 100µF/6.3V H7 CE0KMAVSL101 C457 ELECTROLYTIC CAP .
  • Page 67 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. C1394 ELECTROLYTIC CAP . 47µF/6.3V M H7 CE0KMASSL470 D1301 ZENER DIODE DZ-5.6BSBT265 NDTB0DZ5R6BS C1395 ELECTROLYTIC CAP . 470µF/6.3V M CE0KMASDL471 D2001 LED(GREEN) 204-10GD/S957 NPQZ10GDS957 C1421 CHIP CERAMIC CAP . B K 0.01µF/50V CHD1JKB0B103 D2002 LED(GREEN) 204-10GD/S957...
  • Page 68 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CARBON RES. 1/4W J 560 Ω Q1004 TRANSISTOR KTC3203(Y) NQSY0KTC3203 R392 RCX4JATZ0561 Q1005 TRANSISTOR KTC3199(Y) NQSY0KTC3199 R395 PCB JUMPER D0.6-P5.0 JW5.0T CHIP RES.(1608) 1/10W J 100 Ω Q1006 TRANSISTOR KTA1267(Y) NQSY0KTA1267 R397...
  • Page 69 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W J 1k Ω CHIP RES.(1608) 1/10W J 100k Ω R527 RRXAJB5Z0102 R786 RRXAJB5Z0104 CARBON RES. 1/4W J 10k Ω CHIP RES.(1608) 1/10W J 4.7k Ω R528 RCX4JATZ0103 R787...
  • Page 70 Ref. No. Mark Description Part No. Ref. No. Mark Description Part No. CHIP RES.(1608) 1/10W F 75 Ω R1461 RRXAFB5H75R0 JK753 RCA JACK(YELLOW) MSP-281V4-B JXRL010LY003 CHIP RES.(1608) 1/10W J 75 Ω R1462 RRXAJB5Z0750 JK754 RCA JACK(WHITE) MSP-281V1-B JXRL010LY005 CHIP RES.(1608) 1/10W F 75 Ω R1481 RRXAFB5H75R0 JK755...
  • Page 71 DVC840F/MWD2205/DVC865F H9801UD/H98K0UD/H9802UD 2005-01-28...

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