JVC SR-VS20E Service Manual
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JVC SR-VS20E Service Manual

JVC SR-VS20E Service Manual

Mini dv/s-vhs video cassette recorder
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VICTOR COMPANY OF JAPAN, LIMITED
VIDEO DIVISION
Mini DV/S-VHS VIDEO CASSETTE RECORDER
SPECIFICATIONS
GENERAL
Power requirement
Power consumption
Power on
Power off
Temperature
Operating
Storage
Operating position
Dimensions (WxHxD)
Weight
Input/Output
VHS DECK VIDEO/AUDIO
Signal system
Recording system
Format
Signal-to-noise ratio
Horizontal resolution
(SP/LP)
(EP)
Frequency range
Maximum recording time
(SP)
S40894
(LP)
(EP)
Printed in Japan
SERVICE MANUAL
SR-VS20E/EK
TV
DV
VHS
CABLE/SAT
1
LCD PROG
AUDIO
– –:– –
TV/VCR
2
1
2
3
4
5
6
3
VPS/PDC
DAILY/QTDN.
WEEKLY/HEBDO
7
8
9
4
4
0000
AUX
MENU
0
ENTER/ENTREE
1
PROG
30 SEC
OK
3
2
START
STOP
DATE
PR
DEBUT
FIN
EXPRESS
DV
DV
VHS
INSERT
A.DUB
DUB
COPIE
PR
DV IN/OUT
ENTREE/SORTIE DV
(The specifications shown pertain specifically to the model SR-VS20E)
DV DECK VIDEO/AUDIO
: AC 220 V – 240 V`, 50 Hz/60 Hz
Signal system
Recording system
: 33 W
Format
: 7.9 W
Cassette
Maximum recording time
: 5°C to 40°C
: –20°C to 60°C
: Horizontal only
Audio recording system
: 435 mm x 124 mm x 391 mm
: 6.7 kg
: 21-pin SCART connectors :
IN/OUT x 1, IN/DECODER x 1
TUNER/TIMER
RCA connectors:
TV channel storage
VIDEO IN x 1, AUDIO IN x 1, AUDIO OUT x 1
S-Video connectors: IN x 1, OUT x 1
capacity
DV connector: IN/OUT x 1
(4-pin, IEEE1394 conformity, digital input/output)
Tuning system
Channel coverage
: PAL-type colour signal and CCIR monochrome
signal, 625 lines 50 fields
Memory backup time
: DA4 (Double Azimuth) head helical scan system
: S-VHS/VHS PAL standard
ACCESSORIES
: 45 dB
Provided accessories
: 250 lines (VHS)
400 lines (S-VHS)
: 220 lines (VHS)
350 lines (S-VHS)
: 70 Hz to 10,000 Hz (Normal audio)
20 Hz to 20,000 Hz (Hi-Fi audio)
: 240 min. with E-240 video cassette
Specifications shown are for SP mode unless otherwise specified.
: 480 min. with E-240 video cassette
E.& O.E. Design and specifications subject to change without notice.
: 720 min. with E-240 video cassette
This service manual is printed on 100% recycled paper.
COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
S-VHS ET
VHS
PULL-OPEN
R.A.EDIT
START
625
IN/OUT
: PAL-type colour signal, 625 lines 50 fields
: Digital Component Recording
: DV format (SD mode)
: Mini DV Cassette
(SP)
: 60 min. with M-DV60ME cassette
(LP)
: 90 min. with M-DV60ME cassette
: PCM 48 kHz, 16 bit (2 ch)/
32 kHz, 12 bit (4 ch)
: 99 positions
(+AUX position)
: Frequency synthesized tuner
: VHF 47 MHz – 89 MHz/
104 MHz – 300 MHz/
302 MHz – 470 MHz
UHF 470 MHz – 862 MHz
: Approx. 60 min.
: RF cable,
21-pin SCART/RCA cable,
BNC/RCA adapter x 2,
Satellite Controller RM-SD1,
Infrared remote control unit,
"R6" battery x 2
No. 82842
January 2001

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Summary of Contents for JVC SR-VS20E

  • Page 1 START COPIE IN/OUT DV IN/OUT ENTREE/SORTIE DV SPECIFICATIONS (The specifications shown pertain specifically to the model SR-VS20E) GENERAL DV DECK VIDEO/AUDIO Power requirement : AC 220 V – 240 V`, 50 Hz/60 Hz Signal system : PAL-type colour signal, 625 lines 50 fields...

  • Page 2: Table Of Contents

    Error rate measuring method ............. 2-41 LOADING MOTOR BOARD ASSEMBLY <55> ..........5-32 2.19 TAPE EJECTION ..................2-42 JOG BOARD ASSEMBLY <85> ............... 5-32 The following table lists the differing points between Models (SR-VS20EK and SR-VS20E) in this series. SR-VS20EK SR-VS20E VIDEO SYSTEM...

  • Page 3: Important Safety Precautions

    Important Safety Precautions Prior to shipment from the factory, JVC products are strictly inspected to conform with the recognized product safety and electrical codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.

  • Page 4: Safety Check After Servicing

    • 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 original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.

  • Page 6: Disassembly

    SECTION 1 DISASSEMBLY 1.1 HOW TO REMOVE THE MAJOR PARTS 1.3 DISCONNECTION OF CONNECTORS (WIRES) 1.1.1 Introduction This set is a double-deck video recorder integrating a Mini DV deck and a VHS deck. Its internal structure is divided into three sections that include the power supply, VHS and DV sections.

  • Page 7: How To Remove The Major Parts

    <Note 5> 1.5 HOW TO REMOVE THE MAJOR PARTS <COM section> When removing the SW REG board assembly or Regula- tor board assembly, unhook the several spacers connect- 1.5.1 Disassembly flow chart ing it with pliers from the top side. This flowchart shows the disassembly procedure for the ex- <Note 6>...
  • Page 8 Knob (Jog) Knob (Shuttle) CN5325 CN5321 CN5322 Foil side Eject SW CN5324 board assembly <Note 1> Foil side CN5323 Jack board <Note 1> assembly Jog board assembly ( S4 ) LED/SW board ( S4 ) assembly Display board ( S4 ) assembly ( S4 ) ( S4 )

  • Page 9: How To Remove The Major Parts

    1.6 HOW TO REMOVE THE MAJOR PARTS <VHS section> Procedures for Lowering the Cassette holder assembly As the mechanism of this unit is integrated with the Housing 1.6.1 Disassembly flow chart assembly, the holder must be lowered and the two screws un- This flowchart shows the disassembly procedure for the ex- screwed when removing the Mechanism assembly.
  • Page 10 Note: When installing the Mechanism assembly, secure (S3) the screws (S8) in the order of a , b . Foil side Foil side <Note 2> <Note 2> (S9) (S3) (S5) WR11 CN3014 (S8) Foil side <Note 4> <Note 2> (S8) <Note 4>...

  • Page 11: How To Remove The Major Parts

    1.7 HOW TO REMOVE THE MAJOR PARTS <DV section> 1.7.1 Disassembly flow chart (S5) (S5) This flowchart shows the disassembly procedure for the ex- CN5506 terior parts and electrical parts. (S5) (S5) CN5501 CN5502 Basically, reverse this procedure when assembling them. However, it is required to remove the common section parts as far as 1 “Top cover, Bracket”...
  • Page 12 ( S12 ) ( S5 ) ( S11 ) ( S13 ) ( S5 ) CN5505 CN5502 Earth plate CN5001 ( S13 ) ( S13 ) CN5503 <Note 2> WR19 CN5504 WR20 WR23 WR21 WR22 Fig. D3 Fig. D5 ( S4 ) ( S4 ) ( S4 ) <Note 3>...

  • Page 13: Service Positions

    1.8 SERVICE POSITIONS < Installation > The servicing locations for use in troubleshooting or servic- (1) Stand up the bottom chassis assembly so that the DV/ ing of the set are provided separately for the VHS and DV. Regulator side is in the lower position. (2) Connect the PATCH CORD to the three FPCs then con- SERVICE POSITIONS <VHS SIDE>...

  • Page 14: Service Position

    < Installation > 1.8.2 Service position <DV SIDE> For the PATCH CORDS, see Table 1-8-3. <Removal> The patch cords that are indicated in Table 1-8-3 are in one (1) Remove the top cover and bracket. package. (2) Remove the front panel assembly. (1) Connect a PATCH CORD to the FPC, and connect the (3) Remove the mechanism assembly (DV side) together end to the connector CN1002.

  • Page 15: Mechanism Service Mode

    1.9 MECHANISM SERVICE MODE This model has a unique function to enter the mechanism (5) With lock levers A B on the left and right of the Cassette into every operation mode without loading of any cassette holder assembly pulled toward the front, slide the holder tape.
  • Page 16 1.10 CONNECTION TOP VIEW CN512 Supporting CN703 tape side CN5325 CN7506 Foil side Foil side CN2601 Make a CN7508 crease. Treat the wire Foil side Fix the wire by according to the Style pin surely. figure not to Absorb the looseness Foil side Supporting overlap in TP.

  • Page 17: Connection

    Type Connection Fig. Pin No. (FPC/ Symbol ←→ Connected point Connected point WIRE) ←→ MAIN CN7507 JACK CN7002 ←→ MAIN CN3011 DISPLAY CN7001 ←→ REGULATOR CN5301 SW REG CN5201 ←→ REGULATOR CN5322 MAIN CN7508 ←→ REGULATOR CN5321 MAIN CN7509 ←→ REGULATOR CN5325 FAN MOTOR...

  • Page 18: Emergency Display Function

    1.11.1 Displaying the emergency information 1.11 EMERGENCY DISPLAY FUNCTION (1) Transmit the code “59” from the Jig RCU. This unit has a function for storing the history of the past two The FDP shows the emergency content in the form of emergencies (EMG) and displaying them on each FDP.

  • Page 19: Emergency Content Description

    1.11.3 Emergency content description Note: Emergency contents “E08/E09” are for the model with Dynamic Drum (DD). CONTENT CAUSE E01: Loading EMG When the mechanism mode cannot be changed to an- 1 The mechanism is locked in the middle of mode transition. 2 The mechanism is locked at the loading end due to the encoder position other mode even when the loading motor has rotated for more than 4 seconds in the loading direction, [E:01]...

  • Page 20: Emergency Detail Information 1

    1.11.4 Emergency detail information 1 : Mechanism Operation Mode [Table of MN] The status (electrical operation mode) of the VCR and the sta- tus (mechanism operation mode/sensor information) of the Display Mechanism Operation Mode Command standby (Status without executing command) mechanism in the latest emergency can be confirmed based on POWER OFF by EMG occurrence the figure in EMG detail information 1 .

  • Page 21: Emergency Detail Information 2

    1.11.5 Emergency detail information 2 : Mechanism Sensor Information 3 – [Common table of MN and HD] The type of the cassette tape and the cassette tape winding po- sition can be confirmed based on the figure in EMG detail infor- Mechanism Sensor Information Display S-VHS SW...

  • Page 22: Mechanism Adjustment (Vhs)

    SECTION 2 MECHANISM ADJUSTMENT (VHS) 2.1 BEFORE STARTING REPAIR AND ADJUSTMENT 2.1.1 Precautions (1) Unplug the power cable of the main unit before using your Loading motor soldering iron. (2) Take care not to cause any damage to the conductor wires when plugging and unplugging the connectors.

  • Page 23: Jigs And Tools Required For Adjustment

    2. In case of mechanical failure 2.1.4 Jigs and Tools Required for Adjustment If you cannot remove the cassette tape which is loaded be- Roller driver A/C head positioning tool Torque gauge cause of any mechanical failure, manually remove it by tak- PTU94002 PTU94010 PUJ48075-2...

  • Page 24: Maintenance And Inspection

    2.1.5 Maintenance and Inspection 1. Location of major mechanical parts In this chapter, the two mechanism speeds are described by comparing the speeds of the standard type and the high-speed FF/REW type. It is possible to distinguish between these two types of mechanism by the diameters of their capstan pulleys. The capstan pulley diameter for the standard type is approx.
  • Page 25 4. Suggested servicing schedule for main components The following table indicates the suggested period for such Guide rail Roller cam assembly service measures as cleaning,lubrication and replacement. In practice, the indicated periods will vary widely according to environmental and usage conditions.However, the indi- cated components should be inspected when a set is brought for service and the maintenance work performed if neces- sary.
  • Page 26 Symbols and numbers R4 R1 T9 T12 T11 B15 B12 B14 B13 B17 B21 B7 B8 B5 B4 B11 T14 T15 T13 T22 T24 T18 B19 Removal parts (Reference items) Replacement parts 2.2.3 Guide rail 2.2.3 Roller cam assembly 2.2.3 Cassette housing bracket 2.2.3 Opener guide 2.2.3 Door opener 2.2.3 Relay gear...

  • Page 27: Replacement Of Major Parts

    2.2 REPLACEMENT OF MAJOR PARTS 2.2.3 Cassette Holder Assembly 1. How to remove 2.2.1 Before Starting Disassembling (Phase matching (1) Remove the guide rail and roller cam assembly. (See between mechanical parts) Fig.2-2-3a.) The mechanism of this unit is closely linked with the rotary (3 lugs on the guide rail and one lug on the roller cam encoder and system controller circuits.
  • Page 28 (5) While holding the left side of the cassette holder, lift the 2. How to install (Phase matching) cassette holder assembly so that the three legs on the (1) Insert the section A of the drive arm into the section B left side are all released.

  • Page 29: Pinch Roller Arm Assembly

    2.2.6 Audio Control Head Notches Guide hole Notch 1. How to remove Relay gear (1) Remove the two screws (A) and remove the audio con- trol head together with the head base. (2) When replacing only the audio control head, remove the three screws (B) while controlling the compression spring.

  • Page 30: Capstan Motor

    2. How to install (Centering the mounting position) Loading motor board assembly When the capstan motor has once been removed and then reinstalled out of the initial correct position in the rotational Loading motor direction, the capstan motor current may be unstable during Lugs operation in high or low temperatures.

  • Page 31: Rotary Encoder

    2.2.10 Rotary Encoder 2.2.12 Change Lever Assembly, Direct Gear, Clutch Gear and Coupling Gear 1. How to remove (1) Remove the screw (A) and remove the rotary encoder 1. How to remove by pulling it up. (See Fig. 2-2-10a.) (1) Release the two lugs of the rotary encoder guide in the arrow-indicated direction and remove the change lever assembly.

  • Page 32: Link Lever

    2.2.13 Link Lever 2.2.14 Cassette Gear, Control Cam and Worm Gear 1. How to remove 1. How to remove (1) Remove the two slit washers. (1) Remove the control cam by lifting it. (2) Remove the link lever by lifting it from the shaft retained (2) Open the two lugs of the cassette gear outward and pull by the slit washers.

  • Page 33: Loading Arm Gear (Supply Or Take-Up Side) And Loading Arm Gear Shaft

    (3) Install the control plate so that the section A of the load- (3) Turn the loading arm gear (take-up side) clockwise so ing arm gear shaft fits into the hole (A) of the control plate, that the notch of the loading arm gear (take-up side) is the section B of the control plate guide into the hole (B), in alignment with the projection of the loading arm gear and the control plate comes under the section C of the...

  • Page 34: Take-Up Lever, Take-Up Head And Control Plate Guide

    2.2.17 Take-up Lever, Take-up Head and Control Plate Guide (1) Remove the spring of the take-up lever from the main deck. Spring (2) Remove the lug (A) of the take-up lever from the main Sub brake assembly deck and pull out the take-up lever and the take-up head Lug(A) (take-up side) together.

  • Page 35: Tension Brake Assembly, Reel Disk (Supply Side) And Tension Arm Assembly

    2.2.21 Tension Brake Assembly, Reel Disk (supply side) 2.2.23 Stator Assembly and Tension Arm Assembly (1) Remove the flat cable. 1. How to remove (2) Remove the two screws (A). (1) Remove the three lugs of the tension brake assembly (3) Remove the stator assembly by lifting in the arrow-indi- from the main deck and pull them off.

  • Page 36: Upper Drum Assembly

    2.2.25 Upper Drum Assembly 1. How to remove (1) Remove the stator assembly and rotor assembly. (2) Loosen the screw of the collar assembly using a 1.5 mm hexagonal wrench and remove the collar assembly. Also remove the brush, spring and cap at one time. Lower drum assembly (3) Remove the upper drum assembly and remove the washer using tweezers.

  • Page 37: Compatibility Adjustment

    2.3 COMPATIBILITY ADJUSTMENT (6) Make sure that the V.PB FM waveform varies in parallel and linearly with the tracking operation again. When re- Notes: quired, perform fine-adjustment of the guide roller of the • Although compatibility adjustment is very important, pole base assembly (supply or take-up side).

  • Page 38: Checking/Adjustment Of The Height And Tilt Of The Audio Control Head

    (3) Press the channel buttons (+, –) simultaneously to enter the manual tracking mode. This also brings tracking to the center (centre). (4) Adjust the AUDIO OUT waveform and Control pulse waveform by turning the screws (1), (2) and (3) little by little until both waveforms reach maximum.

  • Page 39: Checking/Adjustment Of The Standard Tracking Preset

    [Perform adjustment steps (7) to (10) only for 2 Head (1) Play back the alignment tape (A). models equipped with LP mode.] (2) Apply the external trigger signal to D.FF (E), to observe the V.PB FM waveform at the measuring point (D). (7) Then play back the alignment tape (A2).
  • Page 40 Mechanism Timing Chart EJECT CASS- Mechanism mode CASS-INS FF/REW STOP SLOW/STILL PLAY Control plate mark HIGH C CH HIGH Rotary encoder B CH HIGH A CH Control cam angle 264. 318. 412. Rotary encoder 114. 150. 167. 178. 207. 218. 240.
  • Page 41 2-20...

  • Page 42: Mechanism Adjustment (Dv)

    MECHANISM ADJUSTMENT (DV) (5) : Parts to be removed in disassembly/assembly, such as 2.9 PREPARATION screws, washers and springs, and the points. 2.9.1 Precautions (1) Observe the specified screw tightening torque when at- Symbol Name & Point taching parts. The torque should be 0.04 Nm (0.4 kgfcm) unless otherwise specified.

  • Page 43: Disassembly/Assembly Of The Mechanism Assembly

    2.10 DISASSEMBLY/ASSEMBLY OF THE MECHANISM ASSEMBLY 2.10.1 Introduction The disassembly and assembly of the mechanism assem- To set the ASSEMBLY mode, apply 3 V DC to the electrodes bly should usually be performed in the ASSEMBLY mode. on the upper part of the loading motor as shown in Fig. 2- (Table 2-10-1) 10-7.
  • Page 44 2. Setting/checking the ASSEMBLY mode DC 3 V Motor Bracket Assembly (Loading Motor) Wire (Brown) Note: • In this ASSEMBLY mode, only the 2 gear teeth of the rotary encoder are marked (red coloring). Marking Wire (Red) (Colored red) Rotary Encoder <...

  • Page 45: Mechanism Timing Chart

    2.11 MECHANISM TIMING CHART See following table (Table 2-11-1). MODE ASSEMBLY LOADING END C-IN S. FF PLAY STOP FF/REW PARTS ROTARY ENCODER ROTARY ENCODER 33.33 166.66 193.33 226.66 273.33 306.66 MAIN CAM SUB CAM POLE BASE S/REV PLAY CTL PLATE FF/REW ON 1 MAIN BRAKE(SUP)

  • Page 46: Mechanism Assembly/Disassembly Procedure Table

    2.12 MECHANISM ASSEMBLY/DISASSEMBLY PROCEDURE TABLE Step Fig. /Loc Part Name Point Note Discription A Cassette housing assembly/ B Mechanism assembly T 2-13-1 2(S1),(L1) – (L5) 1 Drum assembly T 2-13-2 3(S2) 2 Motor bracket assembly T 2-13-2 4(S2) 3 Middle catcher assembly T 2-13-3 3(S2) —...
  • Page 47 TOP VIEW – Fig. 2-12-1 2-26...

  • Page 48: Disassembly/Assembly

    2.13 DISASSEMBLY/ASSEMBLY <Note 1> : If the wires for the cassette housing motor are 1. A Cassette Housing Assembly/ B Mechanism Assembly connected to the circuit board, remove them be- fore disassembly. ( S1 ) ( S1 ) ( L2 ) ( L4 ) ( L5 ) <Note1>...
  • Page 49 3. 3 Middle Catcher Assembly/ 4 Reel Cover Assembly <Note 5> : Once the reel cover assembly has been re- moved, the parts located below it tend to slip out easily: Be careful. ( S2 ) 11 ( S2 ) ( S2 ) ( S2 ) <Note5>...
  • Page 50 5. 9 EXIT Guide Arm Assembly/ 10 Swing Arm Assembly ( W1 ) Fig. 2-13-5 6. 11 Sub Deck Assembly/ 12 Main Brake (Sup) Assembly/ 13 Main Brake (Take up) Assembly <Note 9> : When attaching the sub deck assembly, make sure to adjust the phase of the control plate.
  • Page 51 7. 14 Reel disk assembly (Sup) / 15 Reel disk assembly (Take up) / 16 Prism / 17 Control plate ( S2 ) ( L12 ) ( L12 ) Fig. 2-13-7 8. 18 Guide rail (Take up) assembly / 19 Guide rail (Sup) assembly / 20 Base plate assembly <Note 10>...
  • Page 52 9. 21 Ent. guide base assembly / 22 Worm wheel 2 / 23 Timing belt / 24 Center gear assembly <Note 11> : How to attach the worm wheel 2 22 . ( S2 ) Phase alignment <Note11> Mark (Red) Align the phase of the rotary encoder assembly 34 , then attach it by aligning the phase hole of the mecha- nism assembly.
  • Page 53 11. 29 Tension control arm assembly/ 30 Brake control arm assembly / 31 Charge arm assembly <Note 12> : How to attach the tension control arm assem- bly 29 / Brake control arm assembly 30 . ( L16 ) ( W1 ) ( L17 ) <Note12>...
  • Page 54 13. 34 Rotary encoder assembly / 35 Main cam / 36 Arm gear 1 assembly / 37 Centering arm assembly <Note 14> : How to attach the rotary encoder assembly 34 . Mark (colored : red) ( S2 ) ( S2 ) <Note14>...
  • Page 55 14. 38 Sub cam / 39 Arm gear 2 assembly / 40 Clutch lock lever assembly <Note 17> : How to attach the sub cam 38 . Boss ( S2 ) <Note17> Phase alignment Phase alignment <Note17> Phase alignment <Note18> ( L19 ) Align the phases of the arm gear 2 assembly 39 and clutch lock lever assembly 40 , then attach them by...

  • Page 56: List Of Procedures For Disassembly

    2.14 LIST OF PROCEDURES FOR DISASSEMBLY 14(S3) (W2) (S2) (S2) (S2) (S2) (P3) (W1) 6(S2) 9(S2) (S2) 7(S2) 8(S2) (S2) (S2) (S2) (S2) (S2) (S2) (S2) (S2) (S2) 31(S2) (S2) (S2) (S2) (S2) (S2) (W1) (S2) (S2) (W1) (S2) (S2) ADJ.

  • Page 57: Mechanism Disassembly/Assembly Sheet

    2.15 MECHANISM DISASSEMBLY/ASSEMBLY SHEET Fig. No. Type Attachin 2-13-1 2-13-2 2-13-3 Ref. Fig. 2-13-4 2-13-6 A Cassette housing assembly Drum assembly 4 Reel cover assembly ( S2 ) ( S1 ) ( S2 ) ( S2 ) ( S2 ) ( S1 ) S2×3 S2, L6×2...
  • Page 58 2-13-7 2-13-8 2-13-9 2-13-12 2-13-13 2-13-14 2-13-15 7 Band arm plate sub 11 Sub deck assembly 12 Main 13 Main assembly Brake(Sup) Brake(Take up) ( S2 ) assembly assembly ( S3 ) ( P4 ) ( P5 ) ( W2 ) ( S2 ) ( P2 ) ( S2 )

  • Page 59: Mechanism Phase Check/Adjustment

    2.16 MECHANISM PHASE CHECK/ADJUSTMENT See Fig. 2-16-1. Worm Wheel 2 Arm Gear 1 Assembly See Fig. 2-13-9A. See Fig. 2-13-13B. Rotary Encoder Assembly See Figs. 2-13-9A and 2-13-13A. Arm Gear 2 Assembly See Fig. 2-13-14A. Sub Cam See Fig. 2-13-14A. Main Cam See Figs.

  • Page 60: Positioning The Tension Pole

    2.17 POSITIONING THE TENSION POLE See Fig. 2-17-1. B section Tension Arm Sub Assembly D section Screw A Fig. 2-17-1 Adjustment Method Note: • Remove the cassette housing assembly in advance. 1. Set the mechanism mode to the PLAY mode. (See pages 2-20 and 21.) 2.

  • Page 61: Compatibility And Error Rate Adjustments

    2.18 COMPATIBILITY AND ERROR RATE ADJUSTMENTS 2. Procedure 1. Take out the 7 screws (1 to 7), then remove the top cover. (See Fig. COM1 on page 1-3 of section 1.5.) 2.18.1 Preparation 2. Connect the jig connector cable to CN1101 on the DV Before disassembly and adjustment, back up the data stored MAIN board.

  • Page 62: Linearity Adjustment

    2.18.3 Linearity adjustment 2.18.4 PB switching point adjustment The following flowchart shows the linearity check/adjustment The following flowchart shows the PB switching point adjust- procedure. ment procedure. Connect an oscilloscope (CH: + Slope) and, while triggering Load the alignment tape. it with the HID signal, observe the ENV OUT waveform.

  • Page 63: Tape Ejection

    2.19 TAPE EJECTION 3. If the tape is slack, wind it up by turning the shaft on the If a loaded cassette tape cannot be ejected due to a failure topside of the capstan motor in the direction of the arrow in the electrical circuitry, take the cassette tape out using the using a pointed tool (chip IC replacement jig).

  • Page 64: Electrical Adjustment (Vhs)

    SECTION 3 ELECTRICAL ADJUSTMENT (VHS) 3.1 PRECAUTION Jig RCU The following adjustment procedures are not only necessary [Data transmitting method] Depress the “ ” ( 3 ) button after replacement of consumable mechanical parts or board after the data code is set. assemblies, but are also provided as references to be re- ferred to when servicing the electrical circuitry.

  • Page 65: Servo Circuit

    (1) Record the signal (A2) in the mode (B1), and play back the recorded signal. (2) Press the channel buttons (+, –) simultaneously to enter the manual tracking mode. This also brings tracking to the center (centre). (3) Set the VCR to the FWD slow (+1/6×) mode. (4) Transmit the code (F) from the Jig RCU to adjust so that Fig.

  • Page 66: Ee Y Level

    3.3.2 EE Y level (7) Release the EVR mode of the VCR by transmitting the code (F1) from the Jig RCU again. (When the EVR mode • Signal (A1) Ext. input is released, the adjusted data is memorized.) • (A2) Color (colour) bar signal [PAL] (8) Repeat steps (2) to (7) in the mode (B2).

  • Page 67: Video Eq (Frequency Response)

    (9) Adjust with the channel buttons (+, –) on the VCR (or on (7) Release the EVR mode of the VCR by transmitting the code (F1) from the Jig RCU again. (When the EVR mode the remote controller) so that the higher level channel be- is released, the adjusted data is memorized.) comes the specified value (G) of the note "B"...

  • Page 68: Audio Circuit

    3.4 AUDIO CIRCUIT 3.5 SYSCON CIRCUIT [SR-VS20E] Notes: Note: • This adjustment should be done after the “REC color • When perform this adjustment, remove the Mechanism (colour) level adjustment” for the video circuit has assembly. been completed. • GND (Ground) should be taken from the Tuner shield 3.5.1 Timer clock...

  • Page 69: Electrical Adjustment (Dv)

    ELECTRICAL ADJUSTMENT (DV) 3.6 PREPARATION 3.6.4 Setup 1. Setup for computer adjustment 3.6.1 Precautions (1) The DV section of this model is based on a special ad- — Setup by extending the jig connector — justment method using a PC. However, ordinary adjust- ment is required only when the part listed below has been When performing the adjustment by the Service Support Software, replaced.

  • Page 70: Charts And Diagrams

    SECTION 4 CHARTS AND DIAGRAMS 4) Indication on schematic diagram NOTES OF SCHEMATIC DIAGRAM Voltage Indications for REC and PB mode on the sche- matic diagram are as shown below. Safety precautions The Components identified by the symbol critical for safety. For continued safety, replace safety critical components only with manufacturer's recom- REC mode mended parts.

  • Page 71: Circuit Board Notes

    6. Signal path Symbols CIRCUIT BOARD NOTES The arrows indicate the signal path as follows. 1. Foil and Component sides 1) Foil side (B side) : Playback signal path Parts on the foil side seen from foil face (pattern face) are indicated.

  • Page 72: Board Interconnections

    BOARD INTERCONNECTIONS OPEN MS MODEL ONLY S/P CONVERTER TERMINAL (Page 4-25) J7101 S-OUT J7102 FAN MOTOR J7105 J7103 AUDIO OUT(L/R) SAT CTL J7103 AV2/DECODER CN5201 CN5301 DC3.5V[-] DC3.5V[+] CN7509 S.PROTECT CN5322 DEMOD. TUNER RF IN AL6V (Page 4-27) P.SAVE[L] REGULATOR V.UP[H] RF OUT P.CTL[H]...

  • Page 73: Switching Regulator And Regulator Schematic Diagrams

    SWITCHING REGULATOR AND REGULETOR SCHEMATIC DIAGRAMS Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. TO MAIN (CONNECTION) CN7509 CN5321 CP5324 ICP-N20 REGULATOR...

  • Page 74: Video/Audio Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : VIDEO/AUDIO SCHEMATIC DIAGRAM When replacing the parts , refer to the Parts List. MAIN (VIDEO/AUDIO) CONNECTION, AUDIO I/O R2003 0Ω FMA_OUT[L] R2206 0Ω...

  • Page 75: System Control Schematic Diagram

    SYSTEM CONTROL SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. MAIN (SYSCON) TO CONNECTION I2C_CLK_A/V I2C_DATA_A/V TO SUB CPU, CONNTRTION V.P_CTL B.BACK[H]/P.SAVE SLOW_P/CNR_CTL...
  • Page 76 : Used #DIFFERENCE TABLE X : Not used The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : ITEM SD1EU/EK SD1MS SD1US SD1DOM HV4DOM HV4PAL HV4MS HV4US When replacing the parts , refer to the Parts List. JOG/S B3003 D3011...

  • Page 77: Sub Cpu Schematic Diagram

    SUB CPU SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. 0 3 MAIN(SUB CPU) SYSCON R3424 R3425 4.7k DIAL_PLAY[L] DIAL_OFF[L]...

  • Page 78: Tuner Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : TUNER SCHEMATIC DIAGRAM When replacing the parts , refer to the Parts List. 3 MAIN (TUNER) Used # DIFFERENCE TABLE TU6001 ANT IN ANT OUT Not Used...

  • Page 79: Video I/O Switch Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. VIDEO I/O SWITCH SCHEMATIC DIAGRAM Note : When replacing the parts , refer to the Parts List. 0 3 MAIN (VIDEO I/O SW) B701 C718 C720...

  • Page 80: Audio I/O Schematic Diagram

    AUDIO I/O SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. MAIN (AUDIO I/O) SYSCON, SUB CPU DV_A.MUTE[H] IN_SEL_B IN_SEL_A B2607...

  • Page 81: Connection Schematic Diagram

    CONNECTION SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. Used # DIFFERENCE TABLE Not used C7505 HR-DVS2 HR-PVS100 OPEN C7506...

  • Page 82: Digital/2M Schematic Diagram

    4.10 3D DIGITAL/2M SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. 0 5 3D DIGITAL/2M R1447 C1459 R1448 C1460 R1449...

  • Page 83: Terminal Schematic Diagram

    4.11 TERMINAL SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. TERMINAL C7104 C7108 C7109 C7115 0.01 0.01 L7101 4.7µ...

  • Page 84: Demodulator Schematic Diagram

    4.12 DEMODULATOR SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. 1 4 DEMOD # DIFFERENCE TABLE Used Not used FRANCE MS BASIC...

  • Page 85: S-Sub Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : 4.13 S-SUB SCHEMATIC DIAGRAM When replacing the parts , refer to the Parts List. TO MAIN (CONNECTION) 1 5 S-SUB CN502 CN511 TO MAIN (P/S CONV) EE[L]...

  • Page 86: Mda Schematic Diagram

    Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. 4.14 MDA SCHEMATIC DIAGRAM When replacing the parts , refer to the Parts List. TO DV CAPSTAN MOTOR CN5504 QGF0501F1-18X 1 6 P/R MDA (MDA) COIL_V COIL_V COIL_W...

  • Page 87: Pre/Rec Schematic Diagram

    The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. 4.15 PRE/REC SCHEMATIC DIAGRAM Note : When replacing the parts , refer to the Parts List. P/R MDA (PRE/REC) L5005 10µ NQL144K-100X C5047 C5046 C5045 C5042 C5041 C5040 C5039 C5038...

  • Page 88: On Screen Schematic Diagram

    4.16 ON SCREEN SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. 1 7 ON SCREEN B856 B859 OPEN OPEN C855...

  • Page 89: Display, Eject Sw, Led/Sw, Jack And Jog Schematic Diagrams

    4.17 DISPLAY, EJECT SW, LED/SW, KACK AND JOG SCHEMATIC DIAGRAMS Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. OPEN When replacing the parts , refer to the Parts List. 8 5 JOG DISPLAY D7006...

  • Page 90: Dv System Control Schematic Diagram

    4.18 DV SYSTEM CONTROL SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. DV MSD, DV MAIN, AUDIO AD/DA, DV V OUT AL_5V REG_5V...

  • Page 91: Dv Msd Schematic Diagram

    4.19 DV MSD SCHEMATIC DIAGRAM Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. L1501 DV SYSCON 10µ AL_3VSYS NQL144K-100X C1522 C1523 TO AUDIO AD/DA...

  • Page 92: Dv Main Schematic Diagram

    4.20 DV MAIN SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. DV SYSCON DSP_RST TL2026 TL2025 TL2029 TL2028 ADDT15 ADDT14...

  • Page 93: Dv I/O Schematic Diagram

    4.21 DV I/O SCHEMATIC DIAGRAM Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. TO DV V OUT DV MAIN (DV I/O) C_GCTL Y_GCTL DV MAIN...

  • Page 94: Dv V Out Schematic Diagram

    4.22 DV V OUT SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. DV SYSCON 0 DV MAIN (DV V OUT) A_REG_5V C3521 /6.3...

  • Page 95: Audio Ad/Da Schematic Diagram

    4.23 AUDIO AD/DA SCHEMATIC DIAGRAM Note : The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. When replacing the parts , refer to the Parts List. DV MAIN (AUDIO AD/DA) L3702 10µ DV SYSCON AL_5V L3701...

  • Page 96: Dv Dsp Schematic Diagram

    4.24 DV DSP SCHEMATIC DIAGRAM The Parts Number , value and rated voltage etc. in the Schematic Diagram are for references only. Note : When replacing the parts , refer to the Parts List. IC4002 OPEN DV I/O [FILED_MEMORY] [FILED_MEMORY] R4037 0Ω...

  • Page 97: Switching Regulator And Regulator Circuit Boards

    4.25 SWITCHING REGULATOR AND REGULATOR CIRCUIT BOARDS <01> SW REG, <02> REGULATOR COMPONENT PARTS LOCATION GUIDE <SW REG> LPB10119-001D REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR CONNECTOR D5311 A D 3C R5306 A D 5A D5312 A D 3C R5307 B C 4D C5001...

  • Page 98: Digital/2M And S-Sub Circuit Boards

    4.26 3D DIGITAL/2M AND S-SUB CIRCUIT BOARDS <05> 3D DIGITAL/2M LPB10105-001B COPMONENT PARTS LOCATION GUIDE <3D DIGITAL/2M> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR C1446 L1407 R1429 C1447 L1409 R1430 C1401 C1448 R1431 TRANSISTOR C1402 C1449 R1432 C1403 Q1401 C1450 R1433...

  • Page 99: Terminal Circuit Board

    4.27 TERMINAL CIRCUIT BOARD <06> TERMIANL COPMONENT PARTS LOCATION GUIDE LPB10114-001C <TERMINAL> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR L7121 L7122 C7101 L7123 C7102 C7103 TRANSISTOR C7104 Q7102 C7105 Q7103 C7106 Q7104 C7107 L7119 R7140 Q7105 C7108 L7120 Q7106 C7109 Q7107 C7161 C7135...
  • Page 100 4.28 DISPLAY,EJECT SW, JACK, LED/SW AND JOG CIRCUIT BOARDS 27 EJECT SW, 28 DISPLAY, 36 JACK, 47 LED/SW, 85 JOG LPB10126-001C CN7003 J7003 J7004 R IN L IN J7002 V IN LPB10126 -001C C7062 C7063 R7061 FRONT PWB B7094 LPB10126 001C D7066 FRONT PWB LPA10126 -...

  • Page 101: Main Circuit Board

    4.29 MAIN CIRCUIT BOARD IC6201 <03> MAIN C5501 R3259 R3260 CN7509 D6203 TU6001 R3247 R6204 LPB10113-001C Q3002 R6203 IC3005 C5505 C6240 R3220 C3040 R3245 C3049 R3044 Q3011 R3041 R3107 D3007 R3213 L6001 B6034 L6002 Q6502 CF6031 Q6501 R3042 R3034 C6032 Q5503 Q4001 R6509...

  • Page 102: Demodulator And On Screen Circuit Boards

    COPMONENT PARTS LOCATION GUIDE <MAIN> 4.30 DEMODULATOR AND ON SCREEN CIRCUIT BOARDS REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR C710 C2612 C6234 B C 22M Q3304 R708 R2632 R3215...

  • Page 103: Dv Main Circuit Board

    4.31 P/R MDA, DV MAIN CIRCUIT BOARDS 16 P/R MDA , 50 DV MAIN — FOIL SIDE(B) — LPB10117-001C TL1628 TL1655 TL1607 TL1094 TL1067 TL1608 C1508 IC5502 TL1656 TL1604 TL1626 TL1065 TL1095 Q5504 R5546 R5552 R5553 R5554 R1601 R1602 R5530 R1603 R5531 R1605...
  • Page 104 COMPONENT PARTS LOCATION GUIDE <DV MAIN> REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION CAPACITOR R1647 C2041 C3508 C4046 Q1002 R1100 R2126 R3502 R1648 C1001 C2042 C3509 C5053 Q1011 R1125 R2138 R3503 R1649...
  • Page 105 REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION REF.NO. LOCATION R4041 TL1041 B C TL1506 B C TL1599 B C TL1692 B C TL4045 A C R4042 TL1042 B C TL1507 B C TL1600 B C TL1693 B C TL4046 A C R4043 TL1043 B C...
  • Page 106 — COMPONENT SIDE (A) — C5535 C5551 R1064 R1594 TP1507 R1065 R1045 Q1002 R1063 R1046 CN5507 C1507 TP1510 C5547 R1062 R1047 C1506 RA1006 R1048 C1523 Q1001 TP1508 R1035 R1049 C1522 C1011 C1071 R1052 C1007 R1041 C1072 R1568 TP1503 R1051 C1515 C1008 L1001 R1038...

  • Page 107: Fdp Grid Assignment And Anode Connection

    4.32 FDP GRID ASSIGNMENT AND ANODE CONNECTION 4.33 REMOTE CONTROL SCHEMATIC DIAGRAM [A] (FDP with audio level indicator) VN LD REVIEW VPS/PDC –15dB NORM col2 col1 –15dB (6G, 5G) (4G) [B] (FDP without audio level indicator) REVIEW VN LD VPS/PDC col2 col1 (5G)

  • Page 108: Waveforms

    4.34 WAVEFORMS < VIDEO > TP106 TP111 IC1-27 IC1-30 PB FM D.FF IC1-105 WF12 CN512-6 WF13 CN512-12 WF14 IC1-1 CN512-14 PB 2.3 Vp-p PB 0.88 Vp-p REC/PB 3.4 Vp-p REC 1.6 Vp-p PB 0.3 Vp-p PB 0.3 Vp-p REC/PB 2.2 Vp-p REC 0.7 Vp-p REC 1.0 Vp-p 0.1 V/10 msec/DIV...

  • Page 109: Voltage Charts

    4.35 VOLTAGE CHARTS <JACK> <SW REGULATOR> <S-SUB> MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO.
  • Page 110 <DV V OUT> MODE MODE MODE MODE MODE MODE MODE MODE PLAY PLAY PLAY PLAY PLAY PLAY PLAY PLAY PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. PIN NO. IC3501 IC1010 CN1502 CN1001 -7.2 -7.2 CN1002 <DV MAIN>...

  • Page 111: Cpu Pin Function

    4.36 CPU PIN FUNCTION <SYSCON IC3001> PIN NO. LABEL IN/OUT FUNCTION PIN NO. PIN NO. LABEL LABEL IN/OUT IN/OUT FUNCTION FUNCTION CTL(+) IN/OUT CTL(+) SIGNAL TU_CE CHIP ENABLE OF THE TUNER UNIT SVSS N.REC_ST(H) NORMAL AUDIO SOUND RECORDING START CTL(-) IN/OUT CTL(-) SIGNAL SP_CONV/BS/KBUS_REQ AUDIO INPUT SWITCHING FOR DV...

  • Page 112: System Control Block Diagram (Vhs)

    4.37 SYSTEM CONTROL BLOCK DIAGRAM (VHS) MAIN ( SYSCON, SUB CPU ) IC3001 ( SYSTEM CONTROL MICRO PROCESSOR ) AL5V S3002 C3025 S.CASS CN3003 Timer clock D3005 CAP REV ( L ) CAP REV ( L ) CONNECTION X3001 TIMER CLOCK D.FF D.FF...

  • Page 113: Video Block Diagram(Vhs)

    4.38 VIDEO BLOCK DIAGRAM (VHS) IC1401 ( Y/C SEP & MIX ) DIGITAL/2M DFFI SDATA SCLK COUT com/CNR Q1402 COMB YOUT CN1401 D.FF Y COMB Q1406 V.REF I2C DATA A/V I2C CLK A/V C FROM DIGI Q1404 Y FROM DIGI Q1408 Q1414 EE(L)
  • Page 114 TP106 MAIN (VIDEO, VIDEO I/O SW, CONNECTION) PB FM 2Fsc I2C_DATA_A/V I2C_CLK_A/V & EQ ( VIDEO & AUDIO SYSCON V.PULSE SIGNAL PROCESSOR ) C.SYNC/V.REF D_VHS(H)/D_SEPA(H) TP111 D.FF X-tal CR Det VCO/OSC 2fsc VCO 2fsc SYNC fH LOCK CTL D.FF Clamp CLAMP CN501 SYSCON...

  • Page 115: Audio Block Diagram (Vhs)

    AUDIO BLOCK DIAGRAM (VHS) 4.39 MAIN ( VIDEO/AUDIO, AUDIO I/O, CONNECTION ) TUNER DEMOD(R) DEMOD(L) TU_AUDIO IC2605 IC2606 A.MUTE(H) ( VIDEO & AUDIO SIGNAL PROCESSOR ) USED A.FF FRONT IN CN7507 CN7002 I2C_DATA_A/V FRONT_A(R) J7003 I2C_CLK_A/V FRONT_A(L) R_IN A.ENV/ND(L) H.REC_ST(H) A.MUTE (H) PAL_PB(H) SYSCON...

  • Page 116: System Control Block Diagram (Dv)

    4.40 SYSTEM CONTROL BLOCK DIAGRAM (DV) P/R MDA (MDA) DV MAIN (DV MSD, DV SYSCON) TO DV MAIN IC5501 ADDT00 ADDT15, DALE IC1501 LOADING MOTOR CN5502 LOAD_M CN1501 CN5506 DRUM_PG L.FWD DRUM_PG LOAD_M D.FG D.PGSOUT L.REV DRUM_FG DRUM_FG D.FGSOUT CAP_FG ADM0 ADM15 C.FGSOUT...

  • Page 117: Video Block Diagram (Dv)

    VIDEO BLOCK DIAGRAM ( DV ) 4.41 DV MAIN (DV SYSCON, DV MAIN, DV I/O, DV V OUT, AUDIO AD/DA) TP1001 TP1002 VHS MAIN (SYSCON) IC1002 CN3301 IC1001 Q1002 CN1002 DV MSD S_CLK S_CLK S_DT_OUT S_DT_OUT D1002 S_DT_IN S_DT_IN JLIP_INT TBC_CLK IC1007 TBC_SDI...

  • Page 118: Parts List

    – BATTERY,X2(“R6”TYPE) QPC02202230P POLY BAG < > ! 309 PACKING AND ACCESSORY ASSEMBLY LPT0544-001A INST.BOOK(EN),SR-VS20E LPT0543-004A INST.BOOK(EN),SR-VS20EK ! 310 LP30823-009A PACKING CASE,SR-VS20E LPT0544-002A INST.BOOK(GE),SR-VS20E ! 311 LP30823-010A PACKING CASE,SR-VS20EK LPT0544-003A INST.BOOK(IT),SR-VS20E LP30868-001B CUSHION ASSY PEAC0300-02 RF CABLE PQM30021-95 POLY BAG,SR-VS20E...

  • Page 119: Final Assembly M2

    < > FINAL ASSEMBLY BEWARE OF BOGUS PARTS Parts that do not meet specifica- tions may cause trouble in regard to safety and performance. We rec- ommend that genuine JVC parts be used. 505D 505F 505B 505E 505A 505C 557A...
  • Page 120 < > FINAL ASSEMBLY LY30428-004A CASSETTE HOUSING ASSY,DV QYTDSP2004Z SCREW,X2 ! 501 QYTDST3006Z SCREW,X4 DV MAIN LP10331-007A FRONT PANEL ASSY,SR-VS20E QYTDST3006Z SCREW,X2 SW.RWG LP10311-008A FRONT PANEL ASSY,SR-VS20EK QYTDST3006Z SCREW,X2 PRE/REC MDA 501A LP20968-005A CASSETTE DOOR,VHS LP30553-001A EARTH PLATE,DV CASSETTE HOUSING...

  • Page 121: Mechanism Assembly (Vhs)

    < > MECHANISM ASSEMBLY (VHS) A/C HEAD BOARD ASSY <12> LOADING MOTOR BOARD ASSY <55> Classifi- Symbol in Part No. NOTE:This section indicates that the grease and oil are to be cation drawing applied on locations marked with AA and BB. Grease KYODO-SH-P During checking and servicing, check if grease has been...
  • Page 122 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 123: Mechanism Assembly (Dv)

    < > MECHANISM ASSEMBLY (DV) 450B 450A 450B 450B 450B 464A NOTES: • This section indicates that the grease and oil are to be applied Classifi- Symbol in Part No. on locations marked with AA, BB and CC. cation drawing During checking and servicing, check if grease has been ap- Grease KYODO-SH-P...
  • Page 124 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 125: Electrical Parts List

    ELECTRICAL PARTS LIST REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 126: Regulator Board Assembly <02

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 127: Main Board Assembly <03

    ****************************** or 2PA1576/R/-X TRANSISTOR DTC144WU TRANSISTOR MAIN BOARD ASSEMBLY <03> or PDTC144WU TRANSISTOR or RN1309 TRANSISTOR or UN521E TRANSISTOR LPA10113-01D MAIN BOARD ASSY,SR-VS20E 2SD1819A/QRS/-X TRANSISTOR LPA10113-02D MAIN BOARD ASSY,SR-VS20EK or 2SC4081/QRS/-X TRANSISTOR JCP8020-MSD-2 or 2PC4081/R/-X TRANSISTOR IC702 MM1113XF DTC144WU TRANSISTOR...
  • Page 128 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 129 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 130 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 131 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 132 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 133 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 134 NDC21HJ-220X CAPACITOR,SR-VS20E 22pF,50V C2207 QEKJ1CM-476 E CAPACITOR 47µF,16V NDC21HJ-120X CAPACITOR,SR-VS20EK 12pF,50V C2208 QETJ1HM-475 E CAPACITOR 4.7µF,50V C3025 QAT3725-300Z TRIM CAPACITOR,CLOCK ADJ,SR-VS20E C2213 QEKJ1CM-106 E CAPACITOR 10µF,16V C3027 QERF1CM-106 E CAPACITOR 10µF,16V C2214 QEKJ1CM-106 E CAPACITOR 10µF,16V C3030 QERF1CM-226 E CAPACITOR 22µF,16V...

  • Page 135: Digital/2M Board Assembly <05

    COIL 100µH or UN521E TRANSISTOR CF3301 QAX0227-001Z RESONATOR Q1406 2SA1576A/QR/-X TRANSISTOR QAX0576-001 CRYSTAL RESONATOR or 2PA1576/R/-X TRANSISTOR X3001 QAX0445-001 CRYSTAL RESONATOR,SR-VS20E Q1407 2SA1576A/QR/-X TRANSISTOR QAX0444-001 CRYSTAL RESONATOR,SR-VS20EK or 2PA1576/R/-X TRANSISTOR X3002 QAX0527-001 CRYSTAL RESONATOR Q1408 2SC4081/S/-X TRANSISTOR S3001 QSW0602-004 PUSH SWITCH,REC SAFETY...

  • Page 136: Terminal Board Assembly <06

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 137 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 138: Audio Control Head Board Assembly <12

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 139: S-Sub Board Assembly <15

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 140: Dv Pre/Rec Mda Board Assembly <16

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 141: On Screen Board Assembly <17

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 142: Eject Sw Board Assembly <27

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 143: Jack Board Assembly <36

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 144 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 145 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 146 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 147 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...
  • Page 148 REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

  • Page 149: Loading Motor Board Assembly <55

    REF No. PART No. PART NAME, DESCRIPTION REF No. PART No. PART NAME, DESCRIPTION - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -...

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