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1-10-11

Main CBA Bottom View

BHG470F01014A

NOTE:

The voltage for parts in hot circuit is measured using
hot GND as a common terminal.

CAUTION !

For continued protection against fire hazard,
replace only with the same type fuse.

CAUTION !

Fixed voltage (or Auto voltage selectable)  power supply circuit is used in this unit.
If Main Fuse (F001) 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.  

Because a hot chassis ground is present in the power
supply circut, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly, when troubleshooting this type power supply
circuit, a variable isolation transformer is required.

Содержание 29D-850

Страница 1: ...PAL 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 Me...

Страница 2: ...6 1 How to Initialize the VCR 1 7 1 Function Indicator Symbols 1 8 1 Block Diagrams 1 9 1 Schematic Diagrams CBA s and Test Points 1 10 1 Waveforms 1 11 1 Wiring Diagrams 1 12 1 IC Pin Function Descri...

Страница 3: ...urst 1 4 Video Color S N AM R P dB 37 41 SP Mode 1 5 Video Color S N PM R P dB 30 36 SP Mode 1 6 Resolution PB Line 230 245 SP Mode 2 Servo 2 1 Jitter Low sec 0 07 0 12 SP Mode 2 2 Wow Flutter 0 3 0 5...

Страница 4: ...especially 1 Wires covered with PVC tubing 2 Double insulated wires 3 High voltage leads D Use specified insulating materials for hazardous live parts Note especially 1 Insulation tape 2 PVC tubing 3...

Страница 5: ...F termi nals antenna terminals video and audio input and output terminals microphone jacks earphone jacks etc is lower than or equal to the specified value in the table below Measuring Method Power ON...

Страница 6: ...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 pac...

Страница 7: ...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 i...

Страница 8: ...s 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...

Страница 9: ...ed 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 M on the workbench or other surfa...

Страница 10: ...nto the Deck Mechanism Assembly and press the PLAY button The tape will be loaded into the Deck Mechanism Assembly Make sure the power is on connect TP507 S INH to GND This will stop the function of T...

Страница 11: ...ul not to break them 1 Remove five Screws S 2 three Screws S 3 and Screw S 4 Then slowly lift the VCR Chassis Unit Deck Assembly Jack CBA and Main CBA up 2 When reassembling solder wire jumpers as sho...

Страница 12: ...1 5 2 HK412DC Fig D2 L 2 L 1 2 Front Assembly L 2 Fig D3 S 2 S 2 S 4 S 2 S 2 S 3 S 3 S 3 3 VCR Chassis Unit Fig D4 S 5 4 Jack CBA Desolder...

Страница 13: ...r Assembly From ACE Head Assembly Lead with white stripe Lead with blue stripe Desolder from bottom Lead with blue stripe From Capstan Motor Assembly Lead connections of Deck Assembly and Main CBA Pri...

Страница 14: ...cope Dual trace with 10 1 probe V Range 0 001 50V Div F Range DC AC 20MHz 2 Alignment Tape FL6A Head Switching Position Adjustment Purpose To determine the Head Switching position during playback Symp...

Страница 15: ...no timer programming is set If not reset all timer programming 2 Turn the power off 3 Press the STOP EJECT button and CHANNEL K button on the unit simultaneously for at least 2 seconds Upon completio...

Страница 16: ...tv screen when you press the operation buttons Display panel MODE INDICATOR ACTIVE POWER ON PWR ON CASSETTE IN CASSETTE OUT ON OFF CLOCK 88 88 ON REC REC ON REC PAUSE REC Blinks at 0 8Hz interval T R...

Страница 17: ...tion Cause Indicator Active When reel or capstan mechanism is not functioning correctly A R is displayed on a TV screen Refer to Fig 1 When tape loading mechanism is not functioning correctly A T is d...

Страница 18: ...EO BLOCK FROM TO Hi Fi AUDIO BLOCK TO AUDIO BLOCK SDA SDA SCL SCL TU701 TUNER UNIT IC503 MEMORY 72 32 19 83 IIC BUS SCL D V SYNC D REC H RF SW H A SW C ROTA IIC BUS SDA H A COMP V ENV C SYNC IIC BUS S...

Страница 19: ...OCESS IC501 OSD REC VIDEO SIGNAL PB VIDEO SIGNAL MODE SP REC SERIAL DECORDER VIDEO OUT1 1 VIDEO IN1 1 3 3 VIDEO OUT2 1 VIDEO IN2 3 1 3 JACK CBA 48 50 52 54 56 24 6 50 55 52 19 20 JK101 VIDEO OUT1 VIDE...

Страница 20: ...L MUTE 11 6 PB ON SP LP ON P TUNER IN2 IN1 R ALC DET ALC IC301 AUDIO SIGNAL PROCESS 15 13 17 3 AUDIO PB REC CN504 4 A COM 6 AE H 5 AE H FE H AUDIO HEAD AUDIO ERASE HEAD ACE HEAD ASSEMBLY FE HEAD 2 FE...

Страница 21: ...DIO SIGNAL PROCESS 9 8 9 8 6 11 6 11 AUDIO R IN1 9 AUDIO L IN1 7 9 7 AUDIO R OUT1 5 AUDIO L OUT1 AUDIO R IN2 AUDIO L IN2 AUDIO R OUT2 AUDIO L OUT2 11 5 11 IC451 Hi Fi AUDIO R HEAD Hi Fi AUDIO L HEAD C...

Страница 22: ...7 18 T1 6A L 250V Q055 Q059 SHUNT REGULATOR CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F001 is blown check to see that all components in th...

Страница 23: ...itute 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 draw in...

Страница 24: ...n original function and reliability of repaired units 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 Volta...

Страница 25: ...1 10 3 HK4F8SCM1 Main 1 6 Schematic Diagram...

Страница 26: ...1 10 4 HK4F8SCM2 D1 D2 D3 D4 a b c d e f g c d e f g c d e f g c d e f g h j i a b c d e f g a b a b a b FP562 MATRIX CHART D1 D2 D3 D4 a b c d e g f Main 2 6 Sensor Schematic Diagram...

Страница 27: ...1 10 5 HK4F8SCM3 Main 3 6 Schematic Diagram...

Страница 28: ...1 10 6 HK4F8SCM4 Main 4 6 Jack Sub Jack Schematic Diagram...

Страница 29: ...fire hazard replace only with the same type fuse CAUTION Fixed voltage or Auto voltage selectable power supply circuit is used in this unit If Main Fuse F001 is blown check to see that all components...

Страница 30: ...1 10 8 HK4F8SCM6 Main 6 6 Schematic Diagram...

Страница 31: ...1 10 9 HK4F8SCAFV AFV Schematic Diagram...

Страница 32: ...r Auto voltage selectable power supply circuit is used in this unit If Main Fuse F001 is blown check to see that all components in the power supply circuit are not defective before you connect the AC...

Страница 33: ...s unit If Main Fuse F001 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 compo...

Страница 34: ...1 10 12 Jack CBA Top View Jack CBA Bottom View BHG470F01014C...

Страница 35: ...1 10 13 AFV CBA Top View AFV CBA Bottom View Sub Jack CBA Top View Sub Jack CBA Bottom View BHC400F01093 BHG470F01014B...

Страница 36: ...OR BAR SIGNAL WITH 1KHz AUDIO SIGNAL WF1 WF3 WF3 V OUT E E 10 s 50mV x 10 J23 WF3 UPPER WF1 LOWER V OUT 0 1V x 10 RF SW 0 5V x 10 50 s J23 TP502 WF2 C PB 10mV x 10 RF SW 0 5V x 10 5ms UPPER LOWER WF1...

Страница 37: ...5 6 7 8 9 10 11 CN151 CN101 FULL ERASE HEAD FE HEAD VIDEO R 1 HEAD VIDEO L 1 HEAD SIF 1 NU 2 TU AUDIO R 3 GND 4 TU AUDIO L 5 P ON 5V 6 P ON 5V 7 IIC BUS SCL 8 IIC BUS SDA 9 1 2 3 4 5 6 7 8 9 CN701 CN1...

Страница 38: ...H A COMP Head Amp Comparator Signal H L 18 OUT RF SW Video Head Switching Pulse H L 19 OUT Hi Fi H SW Hi Fi Audio Head Switching Pulse H L 20 NU Not Used 21 NU Not Used 22 NU Not Used 23 NU Not Used 2...

Страница 39: ...al PWM 77 OUT D CONT Drum Motor Control Signal PWM 78 OUT C F R Capstan Motor FWD REV Control Signal FWD L REV H H L 79 IN S REEL Supply Reel Rotation Signal PULSE 80 IN T REEL Take Up Reel Rotation S...

Страница 40: ...TE2 F T 2SA1020 Y 2SA1020 Y TE6 F M 2SC1815 BL TPE2 2SC1815 BL TE2 F T 2SC1815 GR TPE2 2SC1815 GR TE2 F T 2SC1815 Y TPE2 2SC1815 Y TE2 F T 2SC2120 Y TPE2 2SC2120 Y TE2 F T 2SC3266 Y TPE2 2SC3266 Y TP...

Страница 41: ...1 15 1 HK4F5FEX EXPLODED VIEWS Front Panel A1X...

Страница 42: ...his mark Some Ref Numbers are not in sequence 2B18 A2 2L011 2L011 2L011 2L011 2L011 2B9 2B9 2L022 2L022 2L012 JACK CBA A5 2L041 A10 2L031 2L099 2L041 2B7 SENSOR CBA 2B8 2B46 A7 A21 A3 2L042 2L021 2L02...

Страница 43: ...1 15 3 HK4F8PEX Packing Some Ref Numbers are not in sequence X3 X20A X20B X20C X20D X20E X20F X1 X4 S1 Unit S3 A14 S2 S2 X2...

Страница 44: ...BIND HEAD GBCP3100 2L012 SCREW P TIGHT 3X10 BIND HEAD GBCP3100 2L021 SCREW P TIGHT M3X10 WASHER HEAD or GCMP3100 SCREW P TIGHT M3 10 WASHERHEAD GCJP3100 2L022 SCREW P TIGHT M3X10 WASHER HEAD See Elec...

Страница 45: ...50V or CHD1JZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1 F 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C157 ELECTROLYTIC CAP 1 F 50V M H7 CE1JMAVSL1R0 C158 CHIP CERAMIC CAP 1608 B K 100...

Страница 46: ...RAMIC CAP 1608 F Z 0 1 F 25V or CHD1EZ30F104 Ref No Description Part No CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C428 CHIP CERAMIC CAP CH J 220pF 50V or CHD1JJ3CH221 CHIP CERAMIC CAP CG J 220pF 50...

Страница 47: ...or CHD1JZ30F104 CHIP CERAMIC CAP 1608 F Z 0 1 F 25V or CHD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C708 CHIP CERAMIC CAP 1608 B K 0 01 F 50V CHD1JK30B103 C716 CHIP CERAMIC CAP F Z 0 22 F...

Страница 48: ...XKATTU150 L851 INDUCTOR 1 8 H K 26T LLAXKATTU1R8 TRANSISTORS Q001 FET 2SK3566 QFWZ02SK3566 Q002 TRANSISTOR KTC3199 BL AT P or NQS5KTC3199P TRANSISTOR 2SC1815 BL TE2 F T or QQS22SC1815F TRANSISTOR KTC3...

Страница 49: ...RXAJR5Z0472 R023 CHIP RES 1608 1 10W F 2 2k or RRXAFR5H0222 CHIP RES 1608 1 10W F 2 2k RRXAFR5Z0222 Ref No Description Part No R024 CHIP RES 1608 1 10W J 33k RRXAJR5Z0333 R025 CHIP RES 1608 1 10W F 3...

Страница 50: ...1608 1 10W J 10k RRXAJR5Z0103 R509 CHIP RES 1608 1 10W J 4 7k RRXAJR5Z0472 R510 CHIP RES 1608 1 10W J 10k RRXAJR5Z0103 Ref No Description Part No R511 CHIP RES 1608 1 10W J 100k RRXAJR5Z0104 R513 CHI...

Страница 51: ...P O T VZ067TL1 B104 PB F VRCB104HH014 X301 XTAL 4 433619MHz or FXC445LLN001 XTAL 4 433619MHz or 1811388 QUARTZ CRYSTAL 4 433619MHz FXC445LCHE01 X501 XTAL 12 000MHz or FXD126LDS001 QUARTS CRYSTAL 12 00...

Страница 52: ...HD1EZ30F104 CHIP CERAMIC CAP FZ Z 0 1 F 50V CHD1JZ3FZ104 C4 CHIP CERAMIC CAP CH J 56pF 50V or CHD1JJ3CH560 CHIP CERAMIC CAP CG J 56pF 50V CHD1JJ3CG560 C5 CHIP CERAMIC CAP 1608 CH J 22pF 50V or CHD1JJ3...

Страница 53: ...29D 850 HK4F8ED 2005 09 02...

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