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Sony SLV-662HF Service Manual
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Sony SLV-662HF Service Manual

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SERVICE MANUAL
G
j
S MECHANISM
Refer to the SERVICE MANUAL of VHS
MECHANICAL ADJUSTMENT
MECHANICAL ADJUSTMENTS. (9-921-647-11)
MICROFILM
SLV-662HF/679HF
Photo: SLV-679HF
RMT-V266
for
SPECIFICATIONS
Canadian Model
VIDEO CASSETTE RECORDER
RMT-V266
US Model
SLV-662HF/679HF
PX Model
SLV-679HF

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  • Page 1 SLV-662HF/679HF RMT-V266 SERVICE MANUAL US Model Canadian Model SLV-662HF/679HF PX Model SLV-679HF Photo: SLV-679HF RMT-V266 S MECHANISM Refer to the SERVICE MANUAL of VHS MECHANICAL ADJUSTMENT MECHANICAL ADJUSTMENTS. (9-921-647-11) SPECIFICATIONS VIDEO CASSETTE RECORDER MICROFILM...
  • Page 2 CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SERVICE NOTE • MA-341 (VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER SUPPLY) ERROR CODE INDICATION ··········································· 4 PRINTED WIRING BOARD ·················· 4-19 • DS-84 (TAPE OPARATION) GENERAL SCHEMATIC DIAGRAMS ····················· 4-22 Index to parts and controls ························································ 1-1 •...

  • Page 4: Service Note

    SERVICE NOTE 1. ERROR CODE INDICATION • Error codes are indicated using the lower 5 digits in the fluorescent display tube. “At this time, Colon “:” between character is not indicated.” Mode code indication when the error has occurred. Error code ERROR CODE 0 No error 1 Cam encoder error Loading direction...

  • Page 5: General

    SLV-662HF/672HF SECTION 1 This section is extracted from GENERAL instruction manual.
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  • Page 25: Disassembly

    SLV-662HF/679HF SECTION 2 DISASSEMBLY NOTE: Follow the disassembly procedure in the numerical order given. 2-1. UPPER CASE, PANEL BLOCK ASSEMBLY 1 Tapping screw 3 Upper case 2 Tapping screw Hooks Hooks !º Panel block assembly 5 Connector (Engaged by the hook.)

  • Page 26: Rear Panel

    2-3. REAR PANEL 2 Rear panel (Engaged by the hook.) Hooks Hooks Hooks 1 POWER code stopper 2-4. MA-341 BOARD 1 Sumitite (B3) +BV 1 Sumitite (B3) +BV 2 MA-341 board with mechanism deck...

  • Page 27: Board

    2-5. MECHANISM DECK 3 Two connectors 6 Two screws (BVTP 3 × 12) 4 Screw 2 Screw (BVTP 3 × 12) (BVTP 3 × 12) 0 Mechanism deck 1 Flexible board 9 MA-341 board 5 MD base (R) 8 MD base (M) 7 MD base (R)

  • Page 28: Internal Views

    2-6. INTERNAL VIEWS — Top View — M901 Drum Assembly DZH-0A7A/Z-RP 8-839-057-51 ACE head block assembly A-6759-620-A Pinch press block assembly FE head A-6759-615-A 1-500-144-11 FL complete assembly A-6759-619-C Reel (T) table Reel (S) table 3-977-508-01 3-977-507-01 — Bottom View — M902 DC motor (capstan) 1-698-971-11...

  • Page 29: Circuit Boards Location

    2-7. CIRCUIT BOARDS LOCATION MA-341 VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER SUPPLY DS-84 (TAPE OPERATION) 2-5E...

  • Page 31: Block Diagrams

    SLV-662HF/679HF SECTION 3 BLOCK DIAGRAMS 3-1. OVERALL BLOCK DIAGRAM DRUM MOTOR IC160 (2/2) MA-341 BOARD (SEE PAGE 4-5,7,9,11,13,15,17) SYSTEM DRUM D VS DRUM CONTROL SERVO MOTOR D PG DRUM D FG DRUM VHF/ TU701 CAPSTAN IC160 CAPSTAN MOTOR (1/2) SERVO...

  • Page 32: Video Block Diagram

    SLV-662HF/679HF 3-2. VIDEO BLOCK DIAGRAM IC201 @ª PB IC201 @ª REC 2.2Vp-p 2.3Vp-p OSD V OUT IC160 %™ MA-341 BOARD FROM IC160 13 Q VD 2.2Vp-p SYSCON BLOCK IC160 %™ OSD V OUT PB (SEE PAGE 3-5) IC201 @£ PB 2.3Vp-p...

  • Page 33: Servo/System Control Block Diagram

    SLV-662HF/679HF 3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM FROM MA-341 BOARD (SEE PAGE 4-9,13) RF VIDEO Q500 VIDEO IC160 IC160 (3/3) UNSW 5V TU VIDEO IC201 39 BLOCK SYSTEM CONTROL (SEE PAGE 3-4) L161 D161 M12V AVCC D162 L162 L163 D109 RF AUDIO IC360 13...

  • Page 34: Audio/Tuner Block Diagram

    SLV-662HF/679HF 3-4. AUDIO/TUNER BLOCK DIAGRAM MA-341 BOARD (SEE PAGE 4-7,11) IC360 AUDIO PROCESSOR (HIFI) DRUM AUDIO CN260 HEAD Q382 CJ561 MUTE LINE MUTE AUDIO Q381 MUTE Q380 MUTE MUTE MUTE NA IN C389 TUNER RF AUDIO TU701 BLOCK NA OUT...

  • Page 35: Power Block Diagram

    SLV-662HF/679HF 3-5. POWER BLOCK DIAGRAM MA-341 BOARD (SEE PAGE 4-17) T600 TU701 R614 L604 R705 D609 +30V L703 POWER IC601 TRANS L704 D600 LF600 CN600 L601 D608 SW12V IC160 LINE SERVO/SYSTEM RECT FILTER F600 CONTROL P CONT P CONT SW12...

  • Page 37: Printed Wiring Boards And Schematic Diagrams

    SLV-662HF/679HF SECTION 4 PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS MA-341 MA-341 BOARD (VIDEO BLOCK (IC201)) BOARD THIS NOTE IS COMMON FOR PRINTED WIRING (VIDEO BLOCK (IC260)) BOARDS AND SCHEMATIC DIAGRAMS. !¶ @¡ IC201 2 REC IC201 @ª PB (In addition to this, the necessary note is IC260 4 REC/PB printed in each block.)

  • Page 38: Frame Schematic Diagram

    SLV-662HF/679HF 4-1. FRAME SCHEMATIC DIAGRAM FRAME SCHEMATIC DIAGRAM...

  • Page 39: Printed Wiring Boards And Schematic

    SLV-662HF/679HF 4-2. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS MA-341(1/7) (VIDEO) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — • Refer to page 4-2 for waveforms. EP_L_IN...
  • Page 40 SLV-662HF/679HF MA-341(2/7) (AUDIO) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — • Refer to page 4-2 for waveforms. AUDIO MA-341(2/7)
  • Page 41 SLV-662HF/679HF MA-341(3/7) (SERVO/SYSTEM CONTROL) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — • Refer to page 4-21 for waveforms. Note : Note : The components identified by Les composants identifiés par...
  • Page 42 SLV-662HF/679HF MA-341(4/7) (AUDIO PROCESS) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — AUDIO PROCESS 4-11 4-12 MA-341(4/7)
  • Page 43 SLV-662HF/679HF MA-341(5/7) (TUNER) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — Note : Note : The components identified by Les composants identifiés par mark ! or dotted line with mark une marque ! sont critiques ! are critical for safety.
  • Page 44 SLV-662HF/679HF MA-341(6/7) (MODE CONTROL)SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — MODE CONTROL 4-15 4-16 MA-341(6/7)
  • Page 45 SLV-662HF/679HF MA-341(7/7) (POWER SUPPLY) SCHEMATIC DIAGRAMS For schematic diagram • Refer to page 4-19 for printed wiring board. — Ref. No. MA-341 Board; 1,000 Series — US, CND:TNR10V241k PX:TNR10V431k US, CND:2A 125V PX:T2AL 250V C650 0.1uF B C638 US, CND:470u/10V...
  • Page 46 SLV-662HF/679HF MA-341 (VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER SUPPLY) PRINTED WIRING BOARD There are few cases that the part printed on this diagram isn’t mounted in this model. — Ref. No. MA-341 Board; 1,000 Series — 1-672-475- VIDEO, AUDIO, SERVO/SYSTEM CONTROL, TUNER, POWER SUPPLY...

  • Page 47: Tape Operation

    SLV-662HF/679HF DS-84 (TAPE OPERATION) PRINTED WIRING BOARD — Ref. No. DS-84 Board; 2000 Series — MA-341 BOARD There are few cases that the part printed on this diagram isn’t mounted in this model. CN101 H-9 IC101 CN102 F-3 IC160 C-10...

  • Page 49: Interface, Ic Pin Function Description

    SLV-662HF/679HF SECTION 5 INTERFACE, IC PIN FUNCTION DESCRIPTION 5-1. SYSTEM CONTROL — MECHANISM BLOCK INTERFACE (MA-341 BOARD IC160) CASSETTE CASSETTE TAPE TAPE STOP Signal Pin No. EJECTED LOARDING UNLOARDING THREADING UNTEREADING MA-341 Board IC160#£ MA-341 Board MODE 1 — —...

  • Page 50: System Control - System Control Peripheral Circuit Interface (Ma-341 Board Ic160)

    5-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE (MA-341 BOARD IC160) Signal Pin No. I/O level MA-341 Board RESET Normally “H”, “L” when service interruption detected or restored. IC160#¢ MA-341 Board I2C DATA 1 Serial communication data to EEPROM I2C161. IC160#™...

  • Page 51: (Ma-341 Board Ic160)

    5-7. SERVO/SYSTEM CONTROL MICROPROCESSOR PIN FUNCTIONS (MA-341 BOARD IC160) Pin No. Pin Name Function DEST Destination control input FULL ERS TU AFT Tuner analog AFT input FUNC KEY2 Key input FUNC KEY1 Key input S SENS Tape end sensor input T SENS Tape top sensor input V RF ENV...
  • Page 52 Pin No. Pin Name Function WHITE LEVEL White level signal input OSD V OUT OSD Video signal output OSD Vcc SW 5V (OSD block) External low-pass filter for slicer/AFC is connected to this terminal V HOLD External capacitor for slicer is connected to this terminal C VIDEO IN Control video signal input (osd, tuner, sorvo) D Ground...

  • Page 53: Mechanical Adjustments

    SLV-662HF/679HF SECTION 6 ADJUSTMENTS 6-1 MECHANICAL ADJUSTMENTS 1-3. Set-up of Adjustment In this adjustment, NTSC pattern generator is connected with LINE input terminal. When check to tuner, connected AERIAL terminal. For the mechanical adjustments, please refer to the Check that the synchronizing signal of the Y signal has an amplitude “VHS MECHANICAL ADJUSTMENT MANUAL...

  • Page 54: Input/Output Levels And Impedance

    1-5. Input/Output Levels and Impedance POWER SUPPLY CHECK 2-1. Output Voltage Check (MA-341 Board) Video input: LINE IN Input signal: 1 Vp-p, 75 ohms, unbalanced, Mode STANDBY sync negative +30 V Check Video output: LINE OUT C627 ‘ Measurement point Output signal: 1 Vp-p, 75 ohms, unbalanced, sync negative Specified value...

  • Page 55: Servo System Check

    SERVO SYSTEM CHECK AUDIO SYSTEM ADJUSTMENT 3-1. RF Switching Position Adjustment • Adjust both L ch and R ch. (MA-341 Board) [Connecting Instruments] [Adjustment Purpose] To adjust the link of the A-ch and B-ch of the tape playback outputs. Audio line OUTPUT L/R To make the unit compatible with other tapes and units.

  • Page 56: Hifi Switching Position Adjustment (Ma-341 Board)

    4-2. HiFi Switching Position Adjustment 4-3. Normal Audio System Adjustment (MA-341 Board) • Make adjustment in the SP mode unless otherwise specified. Use [Adjustment Purpose] a normal VHS cassette for an adjustment tape. To adjust the link of the A-ch and B-ch of the tape playback outputs. •...

  • Page 57: Adjusting Parts Location Diagram

    ADJUSTING PARTS LOCATION DIAGRAM MA-341 BOARD (CONDUCTOR SIDE) CJ561 CN270 VIDEO/AUDIO LINE RF/HF SWP IN/OUT Q603 C627 Q605 +30 V MTR12 V +12 V Q607 IC601 JS401 -11 V C642 6-6E...

  • Page 59: Repair Parts List

    SLV-662HF/679HF SECTION 7 REPAIR PARTS LIST 7-1. EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number The components identified by mark ! or have some differences from the original one.

  • Page 60: Chassis Section

    7-1-2. CHASSIS SECTION not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * 51 3-959-383-01 BASE (R), MD * 52 A-6791-778-A MA-341 BOARD, COMPLETE (679: PX) * 52 A-6791-731-A MA-341 BOARD, COMPLETE (662) 3-970-608-21 SUMITITE (B3), +BV * 52 A-6791-734-A MA-341 BOARD, COMPLETE (679:US,CND)

  • Page 61: Mechanism Deck Section-1

    7-1-3. MECHANISM DECK SECTION-1 #701 supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-977-509-01 WASHER, THRUST 3-977-514-01 OPENER, LID 3-977-507-01 TABLE, REEL (S) (GRAY) 3-977-441-01 GEAR, PINCH PRESSING 3-977-508-01 TABLE, REEL (T) (BLACK) 3-977-445-01 GEAR, TG8 ARM DRIVING 1-500-144-11 HEAD, FE 3-977-465-01 SPRING, EXTENSION (RVS BRAKE) 3-977-495-01 SHAFT TG2...

  • Page 62: Mechanism Deck Section-2

    7-1-4. MECHANISM DECK SECTION-2 #701 #701 #702 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks X-3947-581-1 BRAKE ASSY,MAIN(T) X-3944-378-1 ROLLER ASSY, GUIDE 3-977-462-01 SPRING,EXTENTION. (MAIN BRAKE) 3-965-178-01 SPRING X-3947-573-1 ARM ASSY, PENDULUM 3-969-632-04 BASE, DRUM X-3947-580-2 BRAKE ASSY, MAIN(S) A-6750-328-E SHUTTLE (T) BLOCK ASSY 3-977-513-02 LEVER, REC PROOF 3-977-501-01 PLATE, LUMINOUS...

  • Page 63: Mechanism Deck Section-3

    7-1-5. MECHANISM DECK SECTION-3 M902 #701 M903 #703 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-977-437-01 RETAINER,CAM MOTOR 3-977-455-01 GEAR, LOADING(T) X-3947-584-1 ASSY, REEL DIRECT 3-977-456-03 SPRING, TORSION (LOAD T) 3-977-443-01 WASHER, STOPPER X-3947-579-1 LEVER ASSY, LOADING(T) 3-977-438-01 WORM - WHEEL 3-977-451-01 GEAR, LOADING(S) 3-977-506-01 ARM, LIMITTER SELECTION...

  • Page 64: Electrical Parts List

    DS-84 MA-341 7-2. ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS: • SEMICONDUCTORS parts list may be different from the parts uF: µF In each case, u: µ, for example: specified in the diagrams or the components •...
  • Page 65 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C222 1-124-261-00 ELECT 10uF C323 1-163-135-00 CERAMIC CHIP 560PF C223 1-128-131-11 ELECT 22uF C324 1-164-232-11 CERAMIC CHIP 0.01uF C225 1-126-160-11 ELECT C325 1-164-232-11 CERAMIC CHIP 0.01uF C226 1-164-004-11 CERAMIC CHIP 0.1uF C361...
  • Page 66 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks ! C601 1-104-705-11 FILM 0.1uF 250V C639 1-164-232-11 CERAMIC CHIP 0.01uF (PX) (EXCEPT PX) ! C602 1-119-892-51 CERAMIC 470PF 250V C642 1-126-967-11 ELECT 47uF ! C603 1-113-900-11 CERAMIC 470PF 250V (EXCEPT PX)
  • Page 67 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < EARTH > JR128 1-216-295-00 METAL CHIP 1/10W JR131 1-216-295-00 METAL CHIP 1/10W ET600 1-537-770-21 TERMINAL BOARD, GROUND JR132 1-216-296-00 METAL CHIP 1/8W ET601 1-537-770-21 TERMINAL BOARD, GROUND JR133 1-216-296-00 METAL CHIP 1/8W...
  • Page 68 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < METAL CHIP > < LINE FILTER > JS363 1-216-296-00 METAL CHIP 1/8W ! LF600 1-416-929-11 FILTER, LINE (EXCEPT PX) JS364 1-216-296-00 METAL CHIP 1/8W < FLUORECENT INDICATOR > JS412 1-216-295-00 METAL CHIP 1/10W...
  • Page 69 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R112 1-216-065-00 METAL CHIP 4.7K 1/10W R224 1-216-089-00 METAL CHIP 1/10W R115 1-216-089-00 METAL CHIP 1/10W R225 1-216-295-00 METAL CHIP 1/10W R116 1-216-089-00 METAL CHIP 1/10W R231 1-216-089-00 METAL CHIP 1/10W R117...
  • Page 70 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R402 1-216-089-00 METAL CHIP 1/10W R612 1-219-786-81 FUSIBLE 1/4W R409 1-216-013-00 METAL CHIP 1/10W (EXCEPT PX) R414 1-216-053-00 METAL CHIP 1.5K 1/10W R613 1-260-091-11 CARBON 1/2W R415 1-216-053-00 METAL CHIP 1.5K 1/10W...
  • Page 71 MA-341 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R711 1-216-061-00 METAL CHIP 3.3K 1/10W MISCELLANEOUS R712 1-216-295-00 METAL CHIP 1/10W *************** R713 1-216-295-00 METAL CHIP 1/10W R731 1-216-049-00 METAL CHIP 1/10W 1-779-725-11 CONNECTOR, BOARD TO BOARD 5P R732 1-216-049-00 METAL CHIP 1/10W...
  • Page 72 SLV-662HF/679HF Sony Corporation 99A1630-1 Printed in Japan ©1999.1 Home A&V Products Company 9-921-709-11 Published by Quality Assurance Dept. — 92 — (Shinagawa)

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