User manual MAGNAVOX MWR20V6

[. . . ] 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 When servicing the deck mechanism, refer to MK14 Deck Mechanism Section. Deck Mechanism Part No. : N2460FL DVD RECORDER & VIDEO CASSETTE RECORDER MWR20V6 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. [. . . ] Power failed No disc when recording Priority 40 - Error message is not displayed. 41 42 - 1-10-3 E9A80FIS IC501 (SYSTEM CONTROL) TP502 S-INH CN2209 FIP501 CN2210 1 DUBBING-SW 1 2 OPEN/CLOSE-SW 2 SW617 DUBBING FIP KEY- 2 85 KEY SWITCH (DVD) GRID IC571 RS501 (FIP DRIVER) REMOTE 23 1G SENSOR 22 2G 21 3G CLK 1 20 4G DIN 28 19 5G STB 2 18 6G 17 7G 5 8 7 6 REMOTE-VIDEO DISPLAY-CLK DISPLAY-DATA DISPLAY-ENA SW615 OPEN/CLOSE DVD OPEN/CLOSE SW CBA SEGMENT KEY SWITCH (VCR) KEY- 1 86 AL+5V TO Hi-Fi AUDIO BLOCK DIAGRAM IIC-BUS SCL IIC-BUS SDA Hi-Fi-H-SW Hi-Fi/NOR-IN 18 17 30 78 7 8 9 10 11 12 13 14 16 a b c d e f g h i IIC-BUS SDA Hi-Fi-H-SW NORMAL-L AUDIO-MUTE VCR-AUDIO-MUTE 31 D-REC 29 TO AUDIO BLOCK DIAGRAM POWER-LED 92 POWER-LED 93 CN2212 CN2211 4 POWER-SW 4 1 AL+5V 1 2 POWER-LED 2 SW601 POWER D561 POWER Q501 25 RESET POWER SW CBA System Control Block Diagram TIMER+5V RESET AUDIO-MUTE D-REC YCA-SCL YCA-SDA YCA-CS D563 VCR AL+5V BLOCK DIAGRAMS 1-11-1 46 1 27 43 91 VCR-LED 94 VCR-LED 95 D562 DVD TO POWER SUPPLY BLOCK DIAGRAM RF-SW H-A-SW H-A-COMP REG-CONT1 P-DOWN-H P-ON-L PWR-SW FAN-CONT1 REG-CONT1 P-DOWN-H P-ON-L PWR-SW FAN-CONT1 TO VIDEO BLOCK DIAGRAM YCA-SCL YCA-SDA YCA-CS C-SYNC-IN D-V SYNC V-ENV C-ROTA 19 20 21 50 24 83 98 RF-SW 23 H-A-SW 99 H-A-COMP 100 YCA-SCL YCA-SDA YCA-CS C-SYNC D-V SYNC V-ENV C-ROTA DVD-LED 96 DVD-LED 97 VIDEO-SW1 59 VIDEO-SW2 58 VIDEO-SW3 57 OUTPUT-SELECT 55 OUTPUT-SELECT VIDEO-SW1 VIDEO-SW2 VIDEO-SW3 TO VIDEO INPUT SELECT BLOCK DIAGRAM IC101 MAIN MICRO CONTROLLER TO VIDEO OUTPUT SELECT BLOCK DIAGRAM SYS-RESET S-DATA-OUT S-DATA-IN S-CLK READY/BUSY TO AUDIO INPUT/OUTPUT SELECT BLOCK DIAGRAM 44 13 12 11 2 SYS-RESET SUB-TXD SUB-RXD SUB-SCLK RDY CN701 4 3 1 5 2 X552 CN201 4 3 Q510 BUFFER 1 5 2 Q509 T4 J25 N24 N23 L25 R24 27MHZ X'TAL SYS-RESET SYS-RESET SUB-TXD SUB-RXD SUB-SCLK RDY AUDIO-SW1 61 AUDIO-SW2 60 DVD-AUDIO-MUTE 56 OUTPUT-SELECT IIC-BUS SDA IIC-BUS SCL AUDIO-SW1 AUDIO-SW2 DVD-AUDIO-MUTE N2 N1 CLK27 IN CLK27 OUT REG-CONT2 45 CN2204 CN101 30 REG-CONT2 30 EV+2. 4V IC106 +1. 2V REGULATOR P-ON+1. 2V E9A80BLS MAIN CBA DVD MAIN CBA MAIN CBA AL+5V IC501 (SERVO CONTROL) (DECK ASSEMBLY) D555 S-LED AC HEAD ASSEMBLY 76 CTL 74 CTL(+) 75 CTL(-) SW512 MODE-SW AL+5V 87 LD-SW TP513 CTL Servo Block Diagram CONTROL HEAD CN504 CL504 5 CTL(+) 6 CTL(-) TP506 ST-S Q504 ST-S 88 ST-S 81 END-S 3 T-REEL TP505 T-REEL TP507 END-S SENSOR CBA Q506 Q503 END-S T-REEL 1-11-2 SENSOR CBA AL+5V VR501 SW-POINT 84 PG-DELAY CYLINDER ASSEMBLY CN502 AL+12V(1) P-ON+5V(1) CAPSTAN MOTOR AL+5V SW511 REC SW 22 RECSAF-SW PG SENSOR DRUM MOTOR CAPSTAN MOTOR M MOTOR DRIVE CIRCUIT 67 C-FG 32 C-F/R 33 C-CONT 26 LM-FWD/REV 34 D-CONT 65 D-PFG M LOADING MOTOR M 1 2 3 4 5 6 7 8 9 10 11 12 AL+12V(1) P-ON+5V(1) C-FG C-F/R C-CONT GND LM-FWD/REV D-CONT D-PFG GND AL+12V AL+18V AL+12V AL+18V E9A80BLSV DVD MECHANISM REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL IC201 IC101 (MAIN MICRO CONTROLLER/MPEG2 AV CODEC) D/A M4 G4 L4 K1 G3 D/A CN201 D/A D/A D/A IC301 IC701 (VIDEO DECODER) LPC VIDEO I/F VIDEO ENCODER VIDEO-Y(I) VIDEO-Y(I/P) VIDEO-C VIDEO-Cb/Pb VIDEO-Cr/Pr RF/ ERROR AMP TO VIDEO OUTPUT SELECT BLOCK DIAGRAM PICK TILT -UP TRACKING FOCUS MOTOR DRIVER Y2, AA4, AB1-AB4 45-50 V3, Y3, W1, Y4, W2, AA3 39-44 FRONT-END DIGITAL SIGNAL PROCESS BACK-END DIGITAL SIGNAL PROCESS DECODER A/D 10 13 VIDEO-Y /CVBS VIDEO-C TO VIDEO INPUT SELECT BLOCK DIAGRAM DECODER A/D Digital Signal Process Block Diagram 1-11-3 CN301 IC202 +3. 3V AUDIO I/F T2 SPDIF TRAY OPEN CN1001 U1 R3 U2 R26 M25 K26 P24 T3 R2 BCK DATA LRCK AIMS MD MC MS SCK CN1003 TO AUDIO INPUT/ OUTPUT SELECT BLOCK DIAGRAM FE ENCODER OP AMP IC302 ENCODER CBA SLED MOTOR P2 R1 P3 LRCK BCK DATA SYSCLK M MOTOR DRIVER SPINDLE MOTOR IC104 (FLASH MEMORY) FLASH MEMORY CN1002 M RELAY CBA IC102 (DDR SDRAM) DDR SDRAM E9A80BLD DVD MAIN CBA REC VIDEO SIGNAL PB VIDEO SIGNAL IC501 (OSD) MAIN CBA 47 49 OSD CHARACTER MIX (VCR DVD DUBBING) TO VIDEO INPUT SELECT BLOCK DIAGRAM VCR-VIDEO(DUB) TO VIDEO OUTPUT SELECT BLOCK DIAGRAM PB/EE-VIDEO IC301 (VIDEO SIGNAL PROCESS/ HEAD AMP) 26 Video Block Diagram 6dB AMP VCA 36 CLAMP 37 CCD 1H DELAY 39 Q301 BUFFER 34 QV/QH VCR-VIDEO 30 YNR/COMB FILTER Y/C MIX FBC LUMINANCE SIGNAL PROCESS TO VIDEO INPUT SELECT BLOCK DIAGRAM VCR VIDEO AGC RP TO VIDEO OUTPUT SELECT BLOCK DIAGRAM (DVD VCR DUBBING) 28 DVD-VIDEO(DUB) DVD 1-11-4 53 54 55 SERIAL I/F SYNC SEPA P R CHROMINANCE SIGNAL PROCESS TO SYSTEM CONTROL BLOCK DIAGRAM 25 24 D-V-SYNC YCA-SCL YCA-SDA YCA-CS C-SYNC D-V-SYNC 69 70 (DECK ASSEMBLY) VIDEO (R)-1 HEAD VIDEO (L)-1 HEAD 74 73 72 SP HEAD AMP SP R P EP VIDEO (L)-2 HEAD 1 2 3 4 5 6 CN253 VIDEO(R)-1 VIDEO-COM VIDEO(L)-1 VIDEO(L)-2 VIDEO-COM VIDEO(R)-2 VIDEO (R)-2 HEAD 67 66 65 EP HEAD AMP WF2 TP302 RF-SW 14 CYLINDER ASSEMBLY TO SYSTEM CONTROL BLOCK DIAGRAM TP301 C-PB C-ROTA RF-SW V-ENV H-A-SW H-A-COMP 57 C-ROTA/RF-SW 59 ENV-DET 58 60 H-A-COMP WF3 E9A80BLV REC VIDEO SIGNAL (VCR DVD DUBBING) VCR-VIDEO(DUB) TO VIDEO BLOCK DIAGRAM IC805 (VIDEO INPUT SELECT) CN701 Q1304, Q1305 BUFFER 19 CN201 BUFFER LPF VIDEO-Y/CVBS VIDEO-C MUTE Video Input Select Block Diagram TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM 10 VIDEO-Y/CVBS-IN 10 8 VIDEO-C-IN 8 PB/EE Y1 Y2 17 13 15 Y 3 1 2 4 C JK1401 S-VIDEO IN 1-11-5 VCR-VIDEO 20 JK804 VIDEO - IN1 TO VIDEO BLOCK DIAGRAM BUFFER + WF 15 TU900 (TUNER UNIT) 17 VIDEO OUT VIDEO1 8 VIDEO2 10 TU-VIDEO 12 MUTE Q1303 BUFFER 21 BUFFER LPF C1 C2 MUTE CONTROL LOGIC 2 4 3 1 2 CN1609 2 Y-IN2 1 C-IN2 4 VIDEO-IN2 CN1605 Y 2 1 4 4 C JK806 S-VIDEO IN2 JK803 22 23 24 VIDEO-IN2 VIDEO-SW1 VIDEO-SW2 TO SYSTEM CONTROL BLOCK DIAGRAM E9A80BLVIS DVD MAIN CBA MAIN CBA VIDEO-SW3 FRONT JACK CBA REC VIDEO SIGNAL PB VIDEO SIGNAL IC1404 (VIDEO DRIVER) 3 1 2 DRIVER 6 4dB AMP LPF 5 3 4 DRIVER -6dB 8dB AMP 2dB AMP DRIVER 7 2dB AMP Y C JK1402 S-VIDEO OUT 1 4dB AMP LPF IC1405 (VIDEO DRIVER) JK1403 DRIVER 13 VIDEO-Y OUT VIDEO-Cb/Pb OUT VIDEO-Cr/Pr OUT 3 WF4 WF5 WF7 WF8 8 4dB AMP LPF 10 DRIVER 2dB AMP 6 LPF 11 DRIVER 4dB AMP 2dB AMP Video Output Select Block Diagram 4dB AMP LPF 2dB AMP 1-11-6 (DVD VCR DUBBING) TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM VIDEO-Y(I) VIDEO-Y(I/P) VIDEO-C VIDEO-Cb/Pb VIDEO-Cr/Pr CN701 30 24 22 28 26 CN201 30 24 22 28 26 VIDEO-Y(I)-OUT VIDEO-Y(I/P)-OUT VIDEO-C-OUT VIDEO-Cb/Pb-OUT VIDEO-Cr/Pr-OUT WF6 DVD-VIDEO(DUB) 2 IC1406 (OUTPUT SELECT) WF1 TP751 V-OUT TO VIDEO BLOCK DIAGRAM JK751 PB/EE-VIDEO 15 1 Q391 BUFFER VIDEO OUT (COMPOSITE) SW CTL TU900 (TUNER UNIT) 9 10 11 5 VIDEO-IN TO SYSTEM CONTROL BLOCK DIAGRAM OUTPUT-SELECT WF12 E9A80BLVOS MAIN CBA DVD MAIN CBA PB-AUDIO SIGNAL REC-AUDIO SIGNAL MAIN CBA N-A-IN TO Hi-Fi AUDIO BLOCK DIAGRAM IC301 (AUDIO PROCESS) Audio Block Diagram N-A-OUT 76 80 78 ALC TUNER LINE 1 LINE 2 R 6 EQ AMP 4 SP/LP-ON 5 3 2 P LPF LINE AMP MUTE 10 1-11-7 4 3 1 2 Q422 BIAS OSC 11 Q421 AUTO BIAS 8 CN504 AUDIO-PB/REC AUDIO-COM AE-H AE-H/FE-H (DECK ASSEMBLY) AC HEAD ASSEMBLY AUDIO HEAD AUDIO ERASE HEAD 9 REC AMP Q426 (PB=ON) P-ON+5V SERIAL I/F 58 55 53 54 SWITCHING Q425 D-REC OFF P-ON+5V FE HEAD CN501 1 FE-H 2 FE-H-GND FULL ERASE HEAD YCA-SDA YCA-SCL YCA-CS AUDIO-MUTE D-REC TO SYSTEM CONTROL BLOCK DIAGRAM E9A80BLA REC AUDIO SIGNAL PB AUDIO SIGNAL IC1406 (OUTPUT SELECT) JK751 12 13 14 TP753 A-OUT-R TP754 A-OUT-L AUDIO(L) -OUT2 JK1202 4 SPDIF WF10 IC804 (OP AMP) 9 10 11 6 CN101 28 SPDIF DIGITAL AUDIO OUT (COAX1AL) SW CTL OUTPUT-SELECT CN2204 28 Q1351 AMP 5 3 AUDIO(R) -OUT2 WF9 OP AMP 7 TO SYSTEM CONTROL BLOCK DIAGRAM JK805 AUDIO(L) -OUT1 CN701 14 16 12 20 18 AUDIO(L)-OUT AUDIO(R)-OUT DVD-AUDIO-MUTE AUDIO(L)-IN AUDIO(R)-IN DVD-AUDIO-MUTE TO SYSTEM CONTROL BLOCK DIAGRAM 2 CN201 14 16 12 20 18 Q804 DRIVE OP AMP 1 Q806 MUTE-ON Q805 MUTE-ON DVD-AUDIO(L) DVD-AUDIO(R) (DVD VCR DUBBING) AUDIO(R) -OUT1 TO Hi-Fi AUDIO BLOCK DIAGRAM IC801 (AUDIO D/A CONVERTER) L-CH 15 R-CH 14 MUTE 16 LINE(L)-IN LINE(R)-IN LINE(L)-OUT LINE(R)-OUT MOD-AUDIO Audio Input/Output Select Block Diagram 1-11-8 IC800 (AUDIO INPUT SELECT) IC803 (OP AMP) 1 BCK DATA LRCK TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM 7 6 8 JK804 AUDIO(L) -IN1 AUDIO(R) -IN1 IC900 (MTS/SAP AUDIO SIGNAL PROCESS) 3 MD MC MS SCK AIMS OP AMP 2 4 3 2 5 AUDIO D/A CONVERTER WF11 L-CH (L-CH) IN1 IN1 TU IN2 TU900 (TUNER UNIT) 1 4 2 5 IC802 (AUDIO A/D CONVERTER) L-CH R-CH 13 14 7 MTS/SAP 30 AUDIO R-CH SIGNAL 29 PROCESS 24 27 21 1 14 11 10 AUDIO-IN SIF OUT SDA SCL WF14 13 WF13 IIC-BUS SCL IIC-BUS SDA VCR PB (VCR DVD DUBBING) SW CTL CN1609 CN1605 6 AUDIO(L)-IN2 6 8 AUDIO(R)-IN2 8 9 10 LRCK BCK DATA OP AMP 6 7 8 9 (R-CH) IN1 IN1 TU IN2 12 11 15 14 10 11 12 AUDIO A/D CONVERTER TO SYSTEM CONTROL BLOCK DIAGRAM SYSCLK 6 JK801 AUDIO(L) -IN2 AUDIO-SW2 AUDIO-SW1 JK800 TO SYSTEM CONTROL BLOCK DIAGRAM AUDIO(R) -IN2 E9A80BLAS DVD MAIN CBA MAIN CBA FRONT JACK CBA PB AUDIO SIGNAL DVD AUDIO SIGNAL REC AUDIO SIGNAL Mode : SP/REC MAIN CBA IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP) SAP DET CONT 57 SIF DEMOD SAP DEMOD L-R DEMOD MATRIX STEREO FILTER 62 63 Hi-Fi Audio Block Diagram SAP FILTER ST/SAP SW DC RIPPLE FILTER 54 dBX DEC SERIAL DATA DECODER 37 38 IIC-BUS SDA IIC-BUS SCL TO SYSTEM CONTROL BLOCK DIAGRAM PILOT CANCEL PILOT DET STEREO PLL P-ON+9V 1-11-9 R-CH PNR R LIM VCO LPF DEV P COMP R-CH BPF SW NOISE DO DET R-CH INSEL 48 47 ENV DET 23 NORMAL-L N-A-IN 69 OUTPUT SELECT ALC MUTE 71 4 80 2 78 77 LINE(L)-OUT MOD-AUDIO LINE(R)-OUT TO SYSTEM CONTROL BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM TO AUDIO INPUT/OUTPUT SELECT BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM NOR SW HOLD PULSE 13 14 N-A-OUT 6 LINE(R)-IN L-CH INSEL NOISE DET 1 39 49 Hi-Fi-H-SW AUDIO-MUTE TO SYSTEM CONTROL BLOCK DIAGRAM COMP 26 LINE(L)-IN 7 TO AUDIO INPUT /OUTPUT SELECT BLOCK DIAGRAM LIM R L-CH PNR P SW NOISE COMP DEV VCO MATRIX DVD-AUDIO(L) DVD-AUDIO(R) (DECK ASSEMBLY) CYLINDER ASSEMBLY LPF R 24 9 74 12 L-CH BPF LIM 34 33 L 27 CN253 Hi-Fi-AUDIO(R) 7 Hi-Fi-COM 8 Hi-Fi-AUDIO(L) 9 Hi-Fi AUDIO (R) HEAD Hi-Fi AUDIO (L) HEAD E9A80BLH F A "This symbol means fast operating fuse. " "Ce symbole reprèsente un fusible à fusion rapide. " CAUTION !Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) 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. V 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. NOTE: The voltage for parts in hot circuit is measured using hot GND as a common terminal. HOT CIRCUIT. BE CAREFUL. F A T001 V AC1001 2 20 F1001 L1001 1A 250V Q055 +9V REG. Q057 SW +5V D1001 - D1004 LINE FILTER 19 BRIDGE RECTIFIER Q104 4 18 SW Q102 +11V 17 EV+33V AL+18V AL+12V P-ON+9V P-ON+5V(1) AL+5V TIMER+5V P-ON+5V Q052 Q105 SW+5V Q056 Power Supply Block Diagram Q103 Q1001 16 CN1607 1 2 3 4 5 15 CN1608 AL+44V 1 AL+12V(1) 2 AL+12V(2) 3 DVD+5V 4 AL+5V 5 CN1611 CN1612 1 2 3 4 5 CN101 AL+44V 18 AL+12V(1) 17 AL+12V(2) 16 DVD+5V 15 AL+5V 14 Q101 SW+5V Q1003 14 1-11-10 8 13 IC1503 IC1504 CN1610 1 3 6 7 8 AL-30V AL+2. 4V AL+4V F1 F2 1 3 6 7 8 10 12 15 16 17 AL-30V AL+2. 4V AL+4V F1 F2 9 7 4 3 2 +3. 3V REG +2. 5V REG AUDIO+5V P-ON+5V P-ON+11V AL-30V EV+10. 5V EV+2. 4V P-ON+3. 3V P-ON+2. 5V 12 7 11 F2 -FL F1 IC010 ERROR VOLTAGE DET Q031 4 1 Q1008 Q205 SWITCHING P-DOWN-H PWR-SW P-ON-L FAN-CONT1 REG-CONT1 TO SYSTEM CONTROL BLOCK DIAGRAM HOT 3 2 Q107, Q108 FAN CONTROL FAN CN102 1 FAN 2 GND E9A80BLP POWER SUPPLY CBA COLD JUNCTION CBA MAIN CBA 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. Replacement parts that have these special safety characteristics are identified in this manual and its supplements; electrical components having such features are identified by the mark "#" 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 the parts list, and may be slightly different or amended since these drawings were prepared. All resistance values are indicated in ohms (K = 103, M = 106). Resistor wattages are 1/4W or 1/6W unless otherwise specified. All capacitance values are indicated in µF (P = 10-6 µF). All voltages are DC voltages unless otherwise specified. 1-12-1 D6N_SC LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: F A V 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. This symbol means fast operating fuse. [. . . ] 1VSA14012 ------------------- WIRE ASSEMBLY FFC 30PIN 30PIN/P1. 00/140 WX1E9A00-001 WIRE ASSEMBLY FFC 30PIN 30PIN/P1. 00/140 WX1E9A00-001 WIRE ASSEMBLY 1PIN UL1061 AWG26 XTAL 3. 579545MHz(20PPM) RESONATOR XTAL 32. 768kHz 32. 768kHz (10PPM12. 5 WX1E9A00-005 FXC355LLN004 FXC323LCHE02 Ref. Description POWER SUPPLY CBA (PSV-A) Consists of the following: Part No. ---------- POWER SUPPLY CBA CAPACITORS POWER SW CBA Ref. Description POWER SW CBA (MCV-B) Consists of the following: Part No. [. . . ]