JVC HR-J6009 Service Manual

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SERVICE MANUAL

VIDEO CASSETTE RECORDER

HR-J6009UM

POWER

12 3 456

7089

CH(AUX)

–

REC

PAUSE

PLAY

REW FF

STOP

–

SET

CANCEL

TV/VCR TIMER

C.RESET

A.MONITOR SP/EP DISPLAY

–

TV CH

TV POWER

–

TV VOL

INPUT

ENTER

VIDEO (MONO) L – AUDIO – R

POWER

STOP/EJECT

PLAY

REW

REC

SPECIFICATIONS

GENERAL

Power requirement Power consumption

Power on Power off

Temperature

Operating

Storage Operating position Dimensions (W x H x D) Weight Format Maximum recording time

VIDEO/AUDIO

Signal system

Recording/Playback system

Signal-to-noise ratio Horizontal resolution Frequency range

Normal audio

Hi-Fi audio Input/Output

: AC 110 V-220 V~, 50 Hz/60 Hz

: 10 W : 2.0 W

:5°C to 40°C (41°F to 104°F) :–20°C to 60°C : Horizontal only : 360 mm x 95 mm x 224 mm : 3.2 kg : VHS NTSC standard

: 210 min. with ST -210 video cassette : 630 min. with ST -210 video cassette

: NTSC-type color signal and

E IA monochrome signal, 525 lines/60 fields

: DA-4

(Double Azimuth) head helical scan system

: 42 dB : 230 lines

: 100 Hz to 10,000 Hz : 20 Hz to 20,000 Hz

RC A connectors (IN x 1, OUT x 1)

TUNER

Tuning system Channel coverage

VHF UHF CAT V

R F output

(–4°F to140°F)

TIMER

Clock reference Program capacity Memory backup for timer

ACCESSO RIES

Provided accessories

Specifications shown are for S P mode unless specified other wise. E. & O.E. Design and specifications subject to change without notice.

: Frequency-synthesized tuner

: Channels 2–13 : Channels 14– 69 : 113 Channels : Channel 3 or 4 (switchable; preset to

Channel 3 when shipped) 75 ohms,

unbalanced

: Quartz : 1-month programmable timer/8 programs : Approx. 18 hours

: R F cable (F-type),

Infrared remote control unit, “AAA” batter

y x 2, Conversion plug

This service manual is printed on 100% recycled paper.

HR-J6009UM V15D1

No.82905

January 2002

Section Title Page Section Title Page

Important Safety Precautions INSTRUCTIONS DISASSEMBLY INSTRUCTION

1.REMOVAL OF MECHANICAL PARTS AND

P.C.BOARDS ..................................................................1-1

1-1 TOP CABINET AND FRONT CABINET ..................1-1

1-2 FLAP .......................................................................1-1

1-3 DECK CHASSIS .....................................................1-1

1-4 SYSCON PCB......................................................... 1-1

2.REMOVAL OF DECK PARTS ......................................... 1-2

2-1 TOP BRACKET .......................................................1-2

2-2 CASSETTE HOLDER ASS’Y ..................................1-2

2-3 CASSETTE SIDE L/R .............................................1-2

2-4 LINK UNIT ...............................................................1-2

2-5 LINK LEVER/FLAP LEVER..................................... 1-2

2-6 LOADING MOTOR/WORM .....................................1-3

2-7 TENSION ASS’Y .....................................................1-3

2-8 T BRAKE ARM/T BRAKE BAND .............................1-4

S REEL/T REEL/IDLER ARM ASS’Y/IDLER GEAR ........

2-9 2-10 CASSETTE OPENER/PINCH ROLLER

BLOCK/P5 ARM ASS’Y........................................... 1-5

2-11 A/C HEAD ...............................................................1-5

2-12 FE HEAD(RECORDER ONLY) ...............................1-5

2-13 AHC ASS’Y/CYLINDER UNIT ASS’Y......................1-5

2-14 CAPSTAN DD UNIT................................................1-6

2-15

MAIN CAM/PINCH ROLLER CAM/JOINT GEAR ............

LOADING GEAR S/T UNIT..............................................

2-16

CLUTCH ASS’Y/RING SPRING/

2-17

CLUTCH LEVER/CLUTCH GEAR ...................................

2-18

CASSETTE GUIDE POST/

INCLINED BASE S/T UNIT/P4 CAP ................................

REMOVAL AND INSTALLATION OF FLAT PACKAGE IC........

REMOVAL........................................................................1-8

INSTALLATION ................................................................1-9

KEY TO ABBREVIATIONS .............................................1-10

PREVENTIVE CHECKS AND SERVICE INTERVALS ....1-12

CLEANING...................................................................... 1-12

SERVICE MODE LIST..................................................... 1-13

SERVICING FIXTURES AND TOOLS............................. 1-13

MECHANISM ADJUSTMENT PARTS LOCATION GUIDE.......

MECHANICAL ADJUSTMENTS

TAPE REMOVAL METHOD AT NO POWER SUPPLY .... 1-14

1.CONFIRMATION AND ADJUSTMENT ......................... 1-14

1-1 CONFIRMATION AND ADJUSTMENT OF

TENSION POST POSITION ................................. 1-14

1-2 CONFIRMATION OF PLAYBACK TORQUE AND

BACK TENSION TORQUE DURING PLAY BACK .. 1-14

1-3 CONFIRMATION OF VSR TORQUE ....................1-14

1-4 CONFIRMATION OF REEL BRAKE TORQUE .....1-15

2.CONFIRMATION AND ADJUSTMENT OF

TAPE RUNNING MECHANISM .................................... 1-15

2-1 GUIDE ROLLER ...................................................1-15

2-2 CONFIRMATION AND ADJUSTMENT OF

AUDIO/CONTROL HEAD .....................................1-16

2-3

TAPE RUNNING ADJUSTMENT(X-VALUE ADJUSTMENT)...

1-4

1-6 1-6

1-7 1-7

1-8

1-13

1-16

PLAYBACK PICTURE SHAKES.................................... 1-31

AUTO TRACKING DOES NOT OPERATE ....................1-32

WHEN PLAYBACK, FAST FORWARD OR REWIND MODE IS ACTIVATED, UNIT STOPS IMMEDIATELY

PLAYBACK PICTURE JITTERS VERTICALLY .............1-33

NO PLAYBACK PICTURE ............................................. 1-34

NO PICTURE DURING PLAYBACK.............................. 1-35

NO COLOR DURING SELF RECORDING AND PLAYBACK .

PLAYBACK PICTURE NOISY(EVEN AFTER CLEANING HEADS) ...

NO NORMAL AUDIO ON PLAYBACK ...........................1-37

AUDIO CAN NOT BE RECORDED ...............................1-38

RECORDING MECHANISM WORKS, BUT NO VIDEO RECORDED FROM INPUT JACK OR TUNER ..

NO E-E(NO VIDEO FROM TUNER).............................. 1-40

NO E-E AUDIO(MONO)................................................. 1-41

NO TUNER AUDIO(MONO)........................................... 1-42

CHARTS AND DIAGRAMS

INTERCONNECTION DIAGRAM ...................................... 2-1

Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM.....2-3

SYSTEM CONTROL/SERVO SCHEMATIC DIAGRAM ....2-5

POWER SCHEMATIC DIAGRAM......................................2-7

TUNER SCHEMATIC DIAGRAM .......................................2-9

OPERATION SCHEMATIC DIAGRAM ............................ 2-11

HI-FI/DEMODULATOR SCHEMATIC DIAGRAM.............2-13

SYSCON CIRCUIT BOARD(INSERTED PARTS) ........... 2-15

SYSCON CIRCUIT BOARD(CHIP MOUNTED PARTS).. 2-17

WAVEFORMS ..................................................................2-20

Y/C/AUDIO/HEAD AMP BLOCK DIAGRAM ....................2-21

SYSTEM CONTROL/SERVO BLOCK DIAGRAM ........... 2-23

TUNER BLOCK DIAGRAM.............................................. 2-25

OPERATION BLOCK DIAGRAM .....................................2-27

POWER BLOCK DIAGRAM ............................................2-27

HI-FI/DEMODULATOR BLOCK DIAGRAM .....................2-29

PARTS LIST

3.1 P ACKING AND ACCESSOR Y ASSEMBL Y <M1> .....3-1

3.2 FINAL ASSEMBL Y <M2>...........................................3-2

3.3 MECHANISM ASSEMBL Y <M4>...............................3-4

3.4 ELECTRICAL PARTS LIST ....................................... 3-7

SYSCON BOARD ASSEMBLY <03>.........................3-7

Reference.......................................................................... 4-1

GENERAL SPECIFICATIONS ........................................... 4-1

.....................................................1-32

1-35 1-36

1-39

ELECTRICAL ADJUSTMENTS

1.BASIC ADJUSTMENT .................................................. 1-17

1-1 SWITCHING POINT.............................................. 1-17

ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE ........

IC DESCRIPTIONS .........................................................1-18

SERVO TIMING CHART ................................................. 1-21

MECHANISM TIMING CHART........................................ 1-22

TROUBLESHOOTING GUIDE

POWER DOES NOT TURN ON ..............................................

POWER SHUTS OFF .................................................... 1-24

CYLINDER NOT ROTATING DURING PLAYBACK AND RECODRDING..

CASSETTE IN AND DOWN, UNIT HAS NO FUNCTIONS .....

FF/REW DO NOT WORK ..............................................1-26

AUDIO SHAKES ............................................................ 1-26

CASSETTE TAPE IS NOT ACCEPTED.........................1-27

WHEN INSERTING CASSETTE, IT EJECTS IMMEDIATELY ..

TAPE LOADING IS OK, BUT UNLOADS IMMEDIATELY..

CAPSTAN DD MOTOR NOT ROTATING ......................1-30

PLAYBACK PICTURE JITTERS HORIZONTALLY........1-31

1-17

1-23 1-25

1-25

1-28 1-29

Important Safety Precautions

cut close to connector

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.

Precautions during Servicing

1. Locations requiring special caution are denoted by labels and inscriptions on the cabinet, chassis and certain parts of the product. When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals.

2. Parts identified by the critical for safety. Replace only with specified part numbers.

Note: Parts in this category also include those specified to com-

ply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission.

3. Fuse replacement caution notice. Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified.

4. Use specified internal wiring. Note especially:

1) Wires covered with PVC tubing

2) Double insulated wires

3) High voltage leads

5. Use specified insulating materials for hazardous live parts. Note especially:

1) Insulation Tape 3) Spacers 5) Barrier

2) PVC tubing 4) Insulation sheets for transistors

6. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.) wrap ends of wires securely about the terminals before soldering.

symbol and shaded ( ) parts are

12. Crimp type wire connector In such cases as when replacing the power transformer in sets where the connections between the power cord and power transformer primary lead wires are performed using crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps.

1) Connector part number : E03830-001

2) Required tool : Connector crimping tool of the proper type

which will not damage insulated parts.

3) Replacement procedure

(1) Remove the old connector by cutting the wires at a point

close to the connector. Important : Do not reuse a connector (discard it).

Fig.3

(2) Strip about 15 mm of the insulation from the ends of

the wires. If the wires are stranded, twist the strands to avoid frayed conductors.

15 mm

Fig.1

7. Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.)

8. Check that replaced wires do not contact sharp edged or pointed parts.

9. When a power cord has been replaced, check that 10-15 kg of force in any direction will not loosen it.

Power cord

Fig.2

10. Also check areas surrounding repaired locations.

11. Products using cathode ray tubes (CRTs) In regard to such products, the cathode ray tubes themselves, the high voltage circuits, and related circuits are specified for compliance with recognized codes pertaining to X-ray emission. Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits. Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.

Fig.4

(3) Align the lengths of the wires to be connected. Insert

the wires fully into the connector.

Metal sleeve

Connector

Fig.5

(4) As shown in Fig.6, use the crimping tool to crimp the

metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

1.25

2.0

5.5

Fig.6

(5) Check the four points noted in Fig.7.

Not easily pulled free

Wire insulation recessed

more than 4 mm

Fig.7

Crimping tool

Crimped at approx. center

of metal sleeve

Conductors extended

S40888-01

Chassis

Power cord, primary wire

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.

1. Insulation resistance test

Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.

2. Dielectric strength test

Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See table 1 below.

3. Clearance distance

When replacing primary circuit components, confirm specified clearance distance (d), (d’) between soldered terminals, and between terminals and surrounding metallic parts. See table 1 below.

Fig. 8

4. Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). Measuring Method : (Power ON) Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See figure 9 and following table 2.

Externally exposed accessible part

Z V

Fig. 9

5. Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between earth pin in AC inlet and externally exposed accessible parts (Video in, Video out, Audio in, Audio out or Fixing screw etc.).

Measuring Method:

Connect milli ohm meter between earth pin in AC inlet and exposed accessible parts. See figure 10 and grounding specifications.

AC inlet

Earth pin

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

200 to 240 V

Exposed accessible part

Milli ohm meter

Fig. 10

Region

Japan

USA & Canada

Europe & Australia R 10 MΩ/500 V DC

Region Load Z

Insulation Resistance (R)

≤

R 1 MΩ/500 V DC

≥≥

1 MΩ R 12 MΩ/500 V DC

≤

Table 1 Specifications for each region

Grounding Specifications

Region

USA & Canada

Europe & Australia

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 miute

AC 1 kV 1 minute AC 3 kV 1 minute

AC 1.5 kV 1 minute

(Class 2)

(Class 1)

Grounding Impedance (Z)

≤

Z 0.1 ohm

≤

Z 0.5 ohm

Clearance Distance (d), (d')

≤

d, d' 3 mm

≤

d, d' 4 mm

≤

d, d' 3.2 mm

≤

d 4 mm

≤

d' 8 mm (Power cord)

≤

d' 6 mm (Primary wire)

a, b, cLeakage Current (i)AC Line Voltage

100 V

110 to 130 V

220 to 240 V

Note: These tables are unofficial and for reference only. Be sure to confirm the precise values for your particular country and locality.

Japan

USA & Canada

Europe & Australia

Table 2 Leakage current specifications for each region

1 kΩ

0.15 µF

1.5 kΩ

2 kΩ

50 kΩ

≤

i 1 mA rms Exposed accessible parts

≤

i 0.5 mA rms

≤

i 0.7 mA peak

≤

i 2 mA dc

≤

i 0.7 mA peak

≤

i 2 mA dc

Exposed accessible parts

Antenna earth terminals

Other terminals

S40888-01

DISASSEMBLY INSTRUCTIONS

REMOVAL OF MECHANICAL PARTS AND P.C. BOARDS

1-1:

TOP CABINET AND FRONT CABINET (Refer to Fig. 2-1)

Remove the 4 screws 1.

Remove the Top Cabinet in the direction of arrow (A).

Unlock the 7 supports 2.

Remove the Front Cabinet in the direction of arrow (B).

Front Cabinet

Top Cabinet

(A)

(B)

Fig. 1-1

1-3: DECK CHASSIS (Refer to Fig. 1-3)

Remove the 3 screws 1.

Disconnect the following connectors: (CP1001, CP4001, CP4002 and CP4003).

Remove the Deck Chassis in the direction of arrow.

Washer

Deck Chassis

CP4003

Washer

CP4001

Washer

CP4002

Bottom Plate

CP1001

Fig. 1-3

1-2: FLAP (Refer to Fig. 1-2)

1.2.Open Flap to 90˚ and flex in direction of arrow (A), at the same time slide in direction of arrow (B). Then lift in direction of arrow (C).

(A)

(C)

(B)

Flap

Fig. 1-2

1-4: SYSCON PCB (Refer to Fig. 1-4)

Remove the screw 1.

Remove the screw 2.

Remove the Syscon PCB in the direction of arrow.

Syscon PCB

Bottom Plate

Fig. 1-4

1-1

DISASSEMBLY INSTRUCTIONS

2. REMOVAL OF DECK PARTS

2-1: TOP BRACKET (Refer to Fig. 2-1)

Extend the 2 supports 1.

1. Slide the 2 supports 2 and remove the Top Bracket.

NOTE

After the installation of the Top Bracket, bend the support

1. 1 so that the Top Bracket is fixed.

Top Bracket

Main Chassis

2-2: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-2)

Move the Cassette Holder Ass'y to the front side.

Push the Locker R to remove the Cassette Side R.

Remove the Cassette Side L.

Cassette Side R

Main Chassis

Locker R

Fig. 2-1

NOTE

In case of the Locker R installation, check if the two

1. positions of Fig. 2-3-B are correctly locked. When you install the Cassette Side R, be sure to move

2. the Locker R after installing.

Locker R

Check if these

Cassette Side R

positions are locked.

2-4: LINK UNIT (Refer to Fig. 2-4)

Set the Link Unit to the Eject position.

Unlock the support 1.

Remove the (A) side of the Link Unit first, then remove the (B) side.

Main Chassis

Link Unit

Fig. 2-3-B

Link Unit

Cassette Side L

Main Chassis

2-3: CASSETTE SIDE L/R (Refer to Fig. 2-3-A)

Remove the Locker Spring.

Unlock the 4 supports 1 and then remove the Cassette Side L/R.

Unlock the support 2 and then remove the Locker R.

Locker Spring

Cassette Side R

Cassette Holder

Locker R

Cassette Side L

Fig. 2-2

(A)

(B)

Link Unit

Main Chassis

2-5: LINK LEVER/FLAP LEVER (Refer to Fig. 2-5)

Extend the support 1.

Remove the Link Lever.

Remove the Flap Lever.

Flap Lever

Link Lever

Fig. 2-4

Fig. 2-5

1-2

Fig. 2-3-A

DISASSEMBLY INSTRUCTIONS

2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A)

Remove the screw 1.

Remove the Loading Motor.

Remove the Worm.

Loading Motor

Worm

Main Chassis

• Screw Torque: 3 ± 0.5kgf•cm

Fig. 2-6-A

NOTE

1.2.In case of the Worm installation, check if the value of the Fig. 2-6-B is correct. In case of the Loading Motor installation, hook the wire on the Cassette Opener as shown Fig. 2-6-C.

19.2 ± 0.1mm

Tension Arm Ass’y

Fig. 2-7-A

Tension Connect

Tension Spring

Tension Holder

Tension Band

Tension Arm Ass’y

Fig. 2-7-B

NOTE

In case of the Tension Band installation, note the direction of the installation. (Refer to Fig. 2-7-C)

In case of the Tension Band installation, install correctly as Fig. 2-7-D.

In case of the Tension Connect installation, install as the circled section of Fig. 2-7-E.

Safety surface for pressing of the insert.

Loading Motor

Cassette Opener

Fig. 2-6-B

Fig. 2-6-C

2-7: TENSION ASS’Y (Refer to Fig. 2-7-B)

Turn the Pinch Roller Cam clockwise so that the Tension Holder hook is set to the position of Fig. 2-7-A to move the Tension Arm Ass’y.

Remove the Tension Spring.

Unlock the 2 supports 1 and remove the Tension Band.

Unlock the support 2 and remove the Tension Arm Ass’y.

Unlock the support 3 and remove the Tension Connect.

Float the hook 4 and turn it clockwise then remove the Tension Holder.

Tension Connect

[OK]

[NG]

Tension Connect

Main Chassis

Tension Band

Fig. 2-7-C

Tension Band

Fig. 2-7-D

Fig. 2-7-E

1-3

DISASSEMBLY INSTRUCTIONS

2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A)

Remove the T Brake Spring.

1. Turn the T Brake Arm clockwise and bend the hook

2. section to remove it. Unlock the 2 supports 1 and remove the T Brake Band.

T Brake Band

Hook section

T Brake Arm

T Brake Spring

Idler Gear

(A)

Idler Arm Ass’y

(B)

S Reel

T Reel

(A)

Fig. 2-8-A

NOTE

1. In case of the T Brake Band installation, install correctly as Fig. 2-8-B.

[OK]

T Brake Band

[NG]

T Brake Band

T Brake Arm

Fig. 2-8-B

2-9: S REEL/T REEL/IDLER ARM ASS’Y/IDLER GEAR

(Refer to Fig. 2-9-A)

Remove the S Reel and T Reel.

Remove the 2 Polyslider Washers 1.

Remove the Idler Arm Ass’y and Idler Gear.

NOTE

Take care not to damage the gears of the S Reel and T Reel.

The Polyslider Washer may be remained on the back of the reel.

Take care not to damage the shaft.

Do not touch the section “A” of S Reel and T Reel. (Use gloves.) (Refer to Fig. 2-9-A) Do not adhere the stains on it.

When you install the reel, clean the shaft and grease it (FG-84M). (If you do not grease, noise may be heard in FF/REW mode.)

After installing the reel, adjust the height of the reel.

(Refer to MECHANICAL ADJUSTMENT)

Fig. 2-9-A

NOTE

1.2.In case of the S Reel and T Reel installation, check if the correct parts are installed. (Refer to Fig. 2-9-B) In case of the Idler Arm Ass’y installation, install correctly as Fig. 2-9-C. And also set it so that the section “B” of Fig. 2-9-A is placed under the Main Chassis tab.

Big Hole (S Reel)

Small Hole (T Reel)

Fig. 2-9-B

[OK]

Clutch Gear

Idler Arm Ass’y

[NG]

Idler Arm Ass’y

Clutch Gear

Fig. 2-9-C

1-4

DISASSEMBLY INSTRUCTIONS

2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/P5

ARM ASS’Y (Refer to Fig. 2-10-A)

1.2.Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass’y.

Cassette Opener

Pinch Roller Block

P5 Arm Ass’y

Main Chassis

Fig. 2-10-A

NOTE

1.2.Do not touch the Pinch Roller. (Use gloves.) In case of the Pinch Roller Block and the Pinch Roller Cam installation, install correctly as Fig. 2-10-B.

Pinch Roller Block

P5 Arm Ass’y

Can be seen the hole of the Main Cam.

Can be seen the hole of the Pinch Roller Cam.

Fig. 2-10-B

2-11: A/C HEAD (Refer to Fig. 2-11-A)

Remove the screw 1.

Remove the A/C Head Base.

Remove the 3 screws 2.

Remove the A/C Head and A/C Head Spring.

NOTE

Do not touch the A/C Head. (Use gloves.)

When you install the A/C Head Spring, install as shown in Fig. 2-11-B.

When you install the A/C Head, tighten the screw (1) first, then tighten the screw (2), finally tighten the screw (3).

(3)

(1)

(2)

A/C Head

Spring Position

Fig. 2-11-B

2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12)

1.2.Remove the screw 1. Remove the FE Head.

FE Head

• Screw Torque: 5 ± 0.5kgf•cm

• The FE Head is not installed on the Video Cassette Player.

Fig. 2-12

2-13: AHC ASS’Y/CYLINDER UNIT ASS’Y

(Refer to Fig. 2-13)

Disconnect the following connector: (CD2001)

Remove the 3 screws 1.

Remove the Cylinder Unit Ass’y.

NOTE

1. When you install the Cylinder Unit Ass’y, tighten the screws from (1) to (3) in order while pulling the Ass’y toward the left front direction.

CD2001

Cylinder Unit Ass’y

• Screw Torque: 5 ± 0.5kgf•cm (Screw 1)

A/C Head Spring

A/C Head Base

Fig. 2-11-A

• Screw Torque: 3 ± 0.5kgf•cm

(3)

(2)

(1)

Fig. 2-13

1-5

DISASSEMBLY INSTRUCTIONS

2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A)

Remove the Capstan Belt.

Remove the 3 screws 1.

Remove the Capstan DD Unit.

Capstan Belt

Capstan DD Unit

• Screw Torque: 4 ± 0.5kgf•cm

Fig. 2-14-A

NOTE

1. In case of the Capstan DD Unit installation, apply the silicon bond (TSE3843-W) on the position Fig. 2-14-B correctly. (If no silicon bond applied, abnormal noise will be heard on the deck operation.)

(Refer to Fig. 2-14-B, C)

Applied position of silicon bond

2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR

(Refer to Fig. 2-15-A)

1.2.Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Cam and Joint Gear.

Main Cam

Pinch Roller Cam

Joint Gear

Fig. 2-15-A

NOTE

1. In case of the Pinch Roller Cam and Main Cam installation, install them as the circled section of Fig. 2-15-B so that the each markers are met. (Refer to Fig. 2-15-B) And also can be seen the Main Chassis hole through the Main Cam maker hole.

Pinch Roller Cam

Marker

Main Cam

1-6

Be careful not to apply the silicon bond to the Pinch Roller.

Capstan DD Unit

Silicon Bond

Main Chassis

Fig. 2-14-B

Fig. 2-14-C

Fig. 2-15-B

2-16: LOADING GEAR S/T UNIT (Refer to Fig. 2-16-A)

1.2.Remove the E-Ring 1 and remove the Main Loading Gear. Remove the Main Rod, Tension Lever, Loading Arm S Unit and Loading Arm T Unit.

Main Rod

Tension Lever

Main Loading Gear

Loading Arm T Unit

Loading Arm S Unit

Fig. 2-16-A

DISASSEMBLY INSTRUCTIONS

NOTE

1. When you install the Loading Arm S Unit, Loading Arm T Unit and Main Loading Gear, align each marker. (Refer to

Fig. 2-16-B)

Marker

Main Loading Gear

Marker

Loading Arm T Unit Loading Arm S Unit

Fig. 2-16-B

2-17: CLUTCH ASS’Y/RING SPRING/CLUTCH LEVER/

CLUTCH GEAR (Refer to Fig. 2-17-A)

Remove the Polyslider Washer 1.

Remove the Clutch Ass’y and Ring Spring.

Remove the Clutch Lever.

Remove the Coupling Gear, Coupling Spring and Clutch Gear.

Clutch Ass’y

Ring Spring

2-18: CASSETTE GUIDE POST/INCLINED BASE S/T

UNIT/P4 CAP (Refer to Fig. 2-18-A)

Remove the P4 Cap.

Unlock the support 1 and remove the Cassette Guide Post.

Remove the Inclined Base S Unit and Inclined Base T Unit.

Cassette Guide Post

Inclined Base T Unit

P4 Cap

Inclined Base S Unit

Fig. 2-18-A

NOTE

Do not touch the roller of Guide Roller.

In case of the P4 Cap installation, install it with parallel for “A” and “B” of Fig. 2-18-B.

In case of the Cassette Guide Post installation, install correctly as the circled section of Fig. 2-18-C.

Coupling Gear

Coupling Spring

Clutch Gear

Clutch Lever

Fig. 2-17-A

NOTE

1. In case of the Clutch Ass’y installation, install it with inserting the spring of the Clutch Ass’y into the dent of the Coupling Gear. (Refer to Fig. 2-17-B)

Clutch Ass’y

Coupling Gear

Fig. 2-17-B

“A”

P4 Cap

[OK]

Cassette Guide Post

[NG]

Cassette Guide Post

“B”

Cassette Opener

Fig. 2-18-B

Fig. 2-18-C

1-7

DISASSEMBLY INSTRUCTIONS

3. REMOVAL AND INSTALLATION OF FLAT

PACKAGE IC

REMOVAL

1. Put the Masking Tape (cotton tape) around the Flat Package IC to protect other parts from any damage.

(Refer to Fig. 3-1.) NOTE

Masking is carried out on all the parts located within 10 mm distance from IC leads.

Masking Tape (Cotton Tape)

2. Heat the IC leads using a blower type IC desoldering machine. (Refer to Fig. 3-2.)

NOTE

Do not add the rotating and the back and forth directions force on the IC, until IC can move back and forth easily after desoldering the IC leads completely.

Fig. 3-1

Blower type IC desoldering machine

3. When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 3-3.)

NOTE

Some ICs on the PCB are affixed with glue, so be careful not to break or damage the foil of each IC leads or solder lands under the IC when removing it.

Blower type IC desoldering machine

Tweezers

4.5.Peel off the Masking Tape. Absorb the solder left on the pattern using the Braided Shield Wire. (Refer to Fig. 3-4.)

NOTE

Do not move the Braided Shield Wire in the vertical direction towards the IC pattern.

Fig. 3-3

1-8

Braided Shield Wire

Soldering Iron

Fig. 3-2

IC pattern

Fig. 3-4

DISASSEMBLY INSTRUCTIONS

INSTALLATION

1. Take care of the polarity of new IC and then install the new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

(Refer to Fig. 3-5.)

Soldering Iron

Solder temporarily

Fig. 3-5

2. Supply the solder from the upper position of IC leads sliding to the lower position of the IC leads.

(Refer to Fig. 3-6.)

4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thintip Soldering Iron. (Refer to Fig. 3-8.)

Thin-tip Soldering Iron

Fig. 3-8

5. Finally, confirm the soldering status on four sides of the IC using a magnifying glass. Confirm that no abnormality is found on the soldering position and installation position of the parts around the IC. If some abnormality is found, correct by resoldering.

NOTE

When the IC leads are bent during soldering and/or repairing, do not repair the bending of leads. If the bending of leads are repaired, the pattern may be damaged. So, be always sure to replace the IC in this case.

Solder

Supply soldering from upper position to lower position

Soldering Iron

3. Absorb the solder left on the lead using the Braided Shield Wire. (Refer to Fig. 3-7.)

NOTE

Do not absorb the solder to excess.

Soldering Iron

Braided Shield Wire

Fig. 3-6

Fig. 3-7

1-9

A/C

ACC AE AFC AFT AFT DET AGC AMP ANT A.PB APC ASS’Y AT AUTO A/V

BGP BOT BPF BRAKE SOL BUFF B/W

C CASE CAP CARR CH CLK CLOCK (SY-SE) COMB CONV CPM CTL CYL CYL-M CYL SENS

DATA (SY-CE) dB DC DD Unit DEMOD DET DEV

E EF EMPH ENC ENV EOT EQ EXT

F FBC FE FF FG FL SW FM FSC FWD

GEN GND

H.P.F

KEY TO ABBREVIATIONS

Audio/Control

Automatic Color Control

Audio Erase

Automatic Frequency Control

Automatic Fine Tuning

Automatic Fine Tuning Detect

Automatic Gain Control

Amplifier

Antenna

Audio Playback

Automatic Phase Control

Assembly

All Time

Automatic

Audio/Video

Burst Gate Pulse

Beginning of Tape

Bandpass Filter

Brake Solenoid

Buffer

Black and White

Capacitance, Collector

Cassette

Capstan

Carrier

Channel

Clock

Clock (Syscon to Servo)

Combination, Comb Filter

Converter

Capstan Motor

Control

Cylinder

Cylinder-Motor

Cylinder-Sensor

Data (Syscon to Servo)

Decibel

Direct Current

Direct Drive Motor Unit

Demodulator

Detector

Deviation

Emitter

Emitter Follower

Emphasis

Encoder

Envelope

End of Tape

Equalizer

External

Fuse

Feed Back Clamp

Full Erase

Fast Forward, Flipflop

Frequency Generator

Front Loading Switch

Frequency Modulation

Frequency Sub Carrier

Forward

Generator

Ground

High Pass Filter

H.SW Hz

IC IF IND INV

KIL

L LED LIMIT AMP LM, LDM LP L.P.F LUMI.

M MAX MINI MIX MM MOD MPX MS SW

NC NR

OSC OPE

PB PB CTL PB-C PB-Y PCB P. CON PD PG P-P

R REC REC-C REC-Y REEL BRK REEL S REF REG REW REV, RVS RF RMC RY

S. CLK S. COM S. DATA SEG SEL SENS SER SI SIF SO SOL SP STB SW

Head Switch

Hertz

Integrated Circuit

Intermediate Frequency

Indicator

Inverter

Killer

Left

Light Emitting Diode

Limiter Amplifier

Loading Motor

Long Play

Low Pass Filter

Luminance

Motor

Maximum

Minimum

Mixer, mixing

Monostable Multivibrator

Modulator, Modulation

Multiplexer, Multiplex

Mecha State Switch

Non Connection

Noise Reduction

Oscillator

Operation

Playback

Playback Control

Playback-Chrominance

Playback-Luminance

Printed Circuit Board

Power Control

Phase Detector

Pulse Generator

Peak-to Peak

Right

Recording

Recording-Chrominance

Recording-Luminance

Reel Brake

Reel Sensor

Reference

Regulated, Regulator

Rewind

Reverse

Radio Frequency

Remote Control

Relay

Serial Clock

Sensor Common

Serial Data

Segment

Select, Selector

Sensor

Search Mode

Serial Input

Sound Intermediate Frequency

Serial Output

Solenoid

Standard Play

Serial Strobe

Switch

1-10

SYNC SYNC SEP

TR TRAC TRICK PB TP

UNREG

V VCO VIF VP V.PB VR V.REC VSF VSR VSS V-SYNC VT

X’TAL

Y/C

KEY TO ABBREVIATIONS

Synchronization

Sync Separator, Separation

Transistor

Tracking

Trick Playback

Test Point

Unregulated

Volt

Voltage Controlled Oscillator

Video Intermediate Frequency

Vertical Pulse, Voltage Display

Video Playback

Variable Resistor

Video Recording

Visual Search Fast Forward

Visual Search Rewind

Voltage Super Source

Vertical-Synchronization

Voltage T uning

Crystal

Luminance/Chrominance

1-11

PREVENTIVE CHECKS AND SERVICE INTERVALS

The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.

Time

Parts Name

Audio Control Head

Full Erase Head

(Recorder only)

Capstan Belt

Pinch Roller

Capstan DD Unit

Loading Motor

Tension Band T Brake Band

Clutch Ass’y

Idler Arm Ass’y

Capstan Shaft

Tape Running Guide Post

Cylinder Unit

: Clean : Check it and if necessary, replace it.

500

hours

1,000 hours

CLEANING

NOTE

After cleaning the heads with isopropyl alcohol, do not run a tape until the heads dry completely. If the heads are not completely dry and alcohol gets on the tape, damage may occur.

1. AUDIO CONTROL HEAD

Clean the Audio Control Head with the cotton stick soaked by alcohol. Clean the full erase head in the same manner. (Refer to the figure below.)

1,500 hours

2,000 hours

2. TAPE RUNNING SYSTEM

When cleaning the tape transport system, use the gauze moistened with isopropyl alcohol.

3. CYLINDER

Wrap a piece of chamois around your finger. Dip it in isopropyl alcohol. Hold it to the cylinder head softly. Turn the cylinder head counterclockwise to clean it (in the direction of the arrow). (Refer to the figure below.)

NOTE

Do not exert force against the cylinder head. Do not move the chamois upward or downward on the head. Use the chamois one by one.

2,500 hours

Notes

Clean those parts in contact with the tape.

Clean the rubber, and parts which the rubber touches.

Replace when rolling becomes abnormal.

Clean the Head

1-12

Audio Control Head

Cylinder Head

SERVICE MODE LIST

This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.

Method Operations

Press the ATR button on the remote control for more than 2 seconds during PLAY.

Make the short circuit between the test point of SERVICE and the GND.

VHS Alignment T ape MHP

Torque Tape PUJ48076-2

Adjusting of the Tracking to the center position. Refer to the “MECHANICAL ADJUSTMENT” (GUIDE ROLLER) and “ELECTRICAL ADJUSTMENT” (SWITHCHING POINT).

The BOT, EOT, and the Reel Sensor do not work and the deck can be operated without a cassette tape. Refer to the “PREPARATION FOR SERVICING”

SERVICING FIXTURES AND TOOLS

VHS Alignment T ape MHP-L

Short Jumper

Torque Gauge PUJ48075-2

Roller Driver PTU94002-2

X-JG153 X Value Adjustment

Screwdriver

MECHANISM ADJUSTMENT PARTS LOCATION GUIDE

1. Tension Connect

2. Tension Arm

3. Guide Roller

4. Audio/Control Head

Arm position

8910

5. X value adjustment driver hole

P4 Post

T Brake Spring

T Reel

S Reel

10.

Adjusting section for the Tension

1-13

MECHANICAL ADJUSTMENTS

TAPE REMOVAL METHOD AT NO POWER SUPPLY

1. Remove the Top Cabinet and Front Cabinet.

(Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.)

2. Remove the screw 1 of the Deck Chassis and remove the Loading Motor.

3. Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape.

4. Rotate the Clutch Ass'y either of the directions to wind the Video Tape in the Cassette Case.

5. Repeat the above step 3~4. Then take out the Video Cassette from the Deck Chassis. Be careful not toscratch on the tape.

Loading Motor

Screw 1

Capstan DD Unit

Pinch Roller Cam

Main Cam

Clutch Ass'y

1. CONFIRMATION AND ADJUSTMENT

Read the following NOTES before starting work.

• Place an object which weighs between 450g~500g on the Cassette Tape to keep it steady when you want to make the tape run without the Cassette Holder. (Do not place an object which weighs over 500g.)

1-1: CONFIRMATION AND ADJUSTMENT OF TENSION

POST POSITION

Set to the PLAY mode.

Adjust the adjusting section for the Tension Arm position so that the Tension Arm top is within the standard line of Main Chassis.

While turning the S Reel clockwise, confirm that the edge of the Tension Arm is located in the position described above.

Standard line of Main Chassis

T ension Arm

0.5mm (Adjusting range)

Fig. 1-2-A

Main Chassis (Front Side)

Adjusting section for the T ension Arm position

Tension Band

The Tension Arm top will move to the inside direction of the Main Chassis.

Bend

The Tension Arm top will move to the outside direction of the Main Chassis.

Fig. 1-2-B

1-2: CONFIRMATION OF PLAYBACK TORQUE AND

BACK TENSION TORQUE DURING PLAYBACK

After confirmation and adjustment of Tension Post position (Refer to item 1-1), load the cassette type torque tape and set to the PLAY mode.

Confirm that the right meter of the torque tape indicates 50~90gf•cm during playback in SP mode.

Confirm that the left meter of the torque tape indicates 25~40gf•cm during playback in SP mode.

1-3: CONFIRMATION OF VSR TORQUE

1.2.Install the Torque Gauge on the S Reel. Set to the Picture Search (Rewind) mode. (Refer to Fig.1-4-B) Then, confirm that it indicates 120~180gf•cm.

NOTE

Install the Torque Gauge on the reel disk firmly. Press the REW button to turn the reel disk.

1-14

MECHANICAL ADJUSTMENTS

1-4: CONFIRMATION OF REEL BRAKE TORQUE

(S Reel Brake) (Refer to Fig. 1-4-B)

Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A.

Move the Idler Ass’y from the S Reel.

Install the Torque Gauge on the S Reel. Turn the Torque Gauge clockwise.

Then, confirm that it indicates 60~100gf•cm.

(T Reel Brake) (Refer to Fig. 1-4-B)

Once set to the Fast Forward mode then set to the Stop mode. While, unplug the AC cord when the Pinch Roller Block is on the position of Fig. 1-4-A.

Move the Idler Ass’y from the T Reel.

Install the Torque Gauge on the T reel. Turn the Torque Gauge counterclockwise.

Then, confirm that it indicates 30~50gf•cm.

The position at FF mode.

Pinch Roller Block

Stop at this position.

The position at STOP mode.

Capstan DD Unit

Cassette Holder Ass’y

Cassette Opener

Fig. 1-4-A

2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM

Tape Running Mechanism is adjusted precisely at th e factory. Adjustment is not necessary as usual. When you replace the parts of the tape running mechanism because of long term usage or failure, the confirmation and adjustment are necessary.

2-1: GUIDE ROLLER

Playback the VHS Alignment Tape (MHP).

1. Connect CH-1 of the oscilloscope to TP4001 (Envelope)

2. and CH-2 to TP1002 (SW Pulse). Press and hold the Tracking-Auto button on the remote

3. control more than 2 seconds to set tracking to center. Trigger with SW Pulse and observe the envelope. (Refer

to Fig. 2-1-A)

When observing the envelope, adjust the Roller Driver (PTU94002-2) slightly until the envelope will be flat. Even if you press the Tracking Button, adjust so that flatness is not moved so much.(Refer to Fig. 2-1-B)

Adjust so that the A : B ratio is better than 3 : 2 as shown in Fig. 2-1-C, even if you press the Tracking Button to move the envelope (The envelope waveform will begin to decrease when you press the Tracking Button).

Adjust the SWITCHING POINT during playback.

(Refer to the ELECTRICAL ADJUSTMENTS)

NOTE

After adjustment, confirm and adjust A/C head.

(Refer to item 2-2)

Torque Gauge

S Reel

T Reel

Fig. 1-4-B

NOTE

If the torque is out of the range, replace the following parts.

Check item

1-3 1-4

S Reel side:

Replacement Part

Idler Ass’y/Clutch Ass’y

S Reel/Tension Band/Tension Connect/Tension Arm Ass’y

T Reel side:

T Reel/T Brake Band//T Brake Spring/T Brake Arm

CH-1 Envelope (TP4001)

CH-2 SW Pulse (TP1002)

Improper

(a) Guide roller

(b) P4 CAP

Entrance

Max

CH-1

CH-2

Track

A : B ≥ 3 : 2

Fig. 2-1-A

Proper

Fig. 2-1-B

Exit

MaxA B

Fig. 2-1-C

1-15

MECHANICAL ADJUSTMENTS

2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/

CONTROL HEAD

When the Tape Running Mechanism does not work well, adjust the following items.

Playback the VHS Alignment Tape (MHP).

Confirm that the reflected picture of stamp mark is appeared on the tape prior to P4 Post as shown in Fig. 2- 2-A. a)

When the reflected picture is distorted, turn the screw 1 clockwise until the distortion is disappeared.

When the reflected picture is not distorted, turn the screw 1 counterclockwise until little distortion is appeared, then adjust the a).

Turn the screw 2 to set the audio level to maximum.

Confirm that the bottom of the Audio/ Control Head and the bottom of the tape is shown in Fig. 2-2-C. c)

When the height is not correct, turn the screw 3 to adjust the height. Then, adjust the 1~3 again.

Audio/Control Head

Reflected picture of Stamp Mark

P4 Cap

2-3: TAPE RUNNING ADJUSTMENT

(X VALUE ADJUSTMENT)

Confirm and adjust the position of the Tension Post.

(Refer to item 1-1)

Adjust the Guide Roller. (Refer to item 2-1)

Confirm and adjust the Audio/Control Head.

(Refer to item 2-2)

Connect CH-1 of the oscilloscope to TP1002, CH-2 to TP4001 and CH-3 to HOT side of Audio Out Jack.

Playback the VHS Alignment Tape (MHP).

Press and hold the Tracking-Auto button on the remote control more than 2 seconds to set tracking to center.

7. Set the X Value adjustment driver (X-JG153) to the 4 of Fig. 2-2-B. At first, turn the Audio/Control Head position

fully toward the capstan side. Then adjust X Value to turn it back gradually toward the cylinder side and stop on the second peak point position of the envelope.

Play MHP

Waveform output

X-value adjustment point

Drum side Control head position Capstan side

Play MHP-L

Audio/Control Head

Tape

Stamp Mark

Fig. 2-2-A

Fig. 2-2-B

0.25±0.05mm

Fig. 2-2-C

Maximum

Perform tracking operation and confirm the envelope is

8. maximum on the tracking center position. Playback the VHS Alignment Tape(MHP-L).

9. Perform tracking operation and confirm the envelope is

10. maximum on the tracking center position. If envelope is not maximum, should be fine-tune the X-VALUE.

Fig. 2-3

1-16

ELECTRICAL ADJUSTMENTS

Read and perform this adjustment when repairing the circuits or replacing electrical parts or PCB assemblies.

1. BASIC ADJUSTMENT

CAUTION

When you exchange IC and Transistor for a heat sink, apply the silicon grease (YG6260M) on the contact section of the heat sink. Before applying new silicon grease, remove all the old silicon grease. (Old grease may cause

6.5H

damages to the IC and Transistor.)

1-1: SWITCHING POINT CONDITIONS

MODE-PLAYBACK Input Signal-Alignment Tape (MHP)

INSTRUCTIONS

Connect CH-1 on the oscilloscope to TP1002 and CH-2

1. to TP4201. Playback the alignment tape. (MHP)

2. Press and hold the Tracking-Auto button on the remote

3. control more than 2 seconds to set tracking to center. Adjust the VR1001 until the waveform of the oscilloscope

6.5H

measures 6.5 ± 0.5(H) at both leading and trailing edges.

(Refer to Fig. 1-1-A, B)

ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (Connector Connections)

CH-2

CH-1

Fig. 1-1-A

CH-2

CH-1

Fig. 1-1-B

AC IN

TU6001

VR1001

J4203

TP4201

J4204

TP1002

TP4001

J4205

J4201

CP4002

CD1002

A/C HEAD

T501

TP1001

SYSCON PCB

1-17

IC DESCRIPTIONS

SYSCON PCB OEC0115A (IC1001)

No. PORT PIN NAME I/O DESCRIPTION

1 P10 SEG8 OUT LEM(LED Module) control terminal. 2 AVSS AVSS - Ground. 3 P07/AN7 BOT-H IN Tape start sensor input signal. 4 P06/AN6 HI-FI_ENV IN Input terminal of HiFi RF envelope. 5 P05/AN5 PGMM IN Input voltage from Variable Resistor of PG SHIFTER. 6 P04/AN4 MS_SEN-B IN Input terminal of mecha state sensor. 7 P03/AN3 MS_SEN-A IN 8 P02/AN2 KEY-B IN Main unit key input.

9 P01/AN1 KEY-A IN 10 P00/AN0 STEREO_SEL IN Input terminal for the judgement of voice reception condition. 11 AN-B AFT-S_CURVE IN AFT S CURVE input for tuner. 12 AN-A EOT-H IN Tape end sensor input signal. 13 AN9 SLOW OFFSET IN Terminal for the offset of Slow. 14 AN8 ENV_DET IN Input terminal of video RF envelope. 15 AVDD AVDD - ON/OFF control Micon AD section. 16 /RESET /RESET IN RESET will be done when the voltage goes to HIGH after the

reset signal. 17 P74 GND IN Ground. 18 P73 IIC CLK OUT CLOCK terminal for IIC BUS communication. 19 P72 IIC DATA OUT/IN DATA terminal for IIC BUS communication. 20 P71 Y/C CS OUT Control terminal for Y/C selection. 21 P70 CAP_FULL OUT Output the HIGH during the acceleration force of capstan motor at

SLOW mode. 22 VDD VDD - Power of CPU. 23 AUDIO_FF HI-FI H.SW OUT Output terminal of HI-FI Head SW. 24 VIDEO_FF H.SW OUT Output terminal of Video Head SW. 25 CAP_PWM CAP_PWM OUT PWM output of Capastan control. 26 DRUM_PWM DRUM_PWM OUT PWM output of Cylinder control. 27 V-PULSE DUMMY_V-SYNC OUT Virtual V Pulse output. 28 C.ROTARY C.ROTARY OUT Color Rotary Control output. 29 H.AMP.SW H.AMP.SW OUT Switching output of Head Amp SW. 30 COMP COMP IN Comparison results input of Playback Envelope level on SP/LP

heads (4 heads). 31 CTL-H(+) CTL-H(+) - Input and output terminal of Control Head. 32 CTL-H(-) CTL-H(-) - Input terminal of Control Head. 33 SV VSS SV VSS - Ground. 34 CTL_GAIN_SW CTL_GAIN_SW - Output terminal for gain. 35 CTL_AMP(-) CTL_AMP(-) - Output terminal for amp control. 36 CTL_BIAS CTL_BIAS - Output terminal for bias.

1-18

IC DESCRIPTIONS

SYSCON PCB OEC0115A (IC1001)

No. PORT PIN NAME I/O DESCRIPTION

37 CTL_AMP CTL_AMP OUT Output terminal for amp out. 38 DFG DFG IN Input terminal for DRUM FG signal detection. 39 DPG DPG IN Input terminal for DRUM PG signal derection. 40 CFG CFG IN Input terminal for CAPSTAN FG signal detection. 41 SV VDD VCC(SV) - + 5V 42 OSD VDD VCC(OSD) - + 5V 43 CV_IN CV_IN IN Composite Video input terminal.

44 V_REF V_REF OUT

45 CV_OUT CV_OUT OUT Composite Video output. 46 CHR_BIAS CHR_BIAS IN Brightness(Brilliant)level setting of OSD character Indications. 47 AFC_LPF AFC_LPF IN Condenser connection for AFC LPF. 48 AFC_OSC AFC_OSC IN Condenser connection for AFC OSC. 49 OSD_VSS OSD_VSS - Ground. 50 DOSC_IN DOSC_IN IN Dot Clock pulse(Oscillator)of OSD character indications. 51 DOSC_OUT DOSC_OUT OUT Dot Clock pulse(Oscillator)of OSD character indications. 52 4FSC_OUT 4FSC_OUT OUT 4 FSC pulse. 53 4FSC_IN 4FSC_IN IN 4 FSC pulse. 54 SYNC SYNC IN Input terminal for composite SYNC. 55 P67/Vsync POWER_OFF_L OUT 4FSC_MUTE control output of power off. 56 P66/YC01 V_REC_ST-H OUT On control of A/V recording(Whole width erase) circuit. 57 P65/YE01 2/4 HEAD IN The initial settings of 2 head or 4 head. 58 P64/YC02 TUNER-L OUT Output low at tuner and output high at external input/play. 59 P63/YE02 A.MUTE-H OUT Mute signal of audio mute. 60 P57 CAP_FWD-H OUT Capstan forward and backward command. 61 P56 CENTER LED OUT The CENTER LED light-up/put-off control output. 62 P55 RF CH OUT OUT Switching of a RF channel. 63 P54 LDM CTL OUT Loading motor control terminal. 64 P53/TM0 POWER ON-H OUT For control the user power switch ON/OFF. 65 P52/PWM2 CYL_SPEED_UP OUT Output terminal for correct cylinder during SLOW. 66 P51/PWM1 CAP_LIMIT OUT Switch the maximum output current of the Capstan Motor. 67 P50/BUZZ SERVICE IN Input terminal for Service Mode. 68 TEST TEST IN Ground. 69 X2 X2 OUT Subclock pulse(32.768KHz) 70 X1 X1 IN 71 DVSS VSS - Ground. 72 OSC1 OSC1 IN Connect the main crystal(10MHz) 73 OSC2 OSC2 OUT 74 P47 GND - GND 75 P46 GRID5 OUT LEM(LED Module) control terminal.

Capacity connection for Sync Chip Clamp composite Video input.

1-19

IC DESCRIPTIONS

SYSCON PCB OEC0115A (IC1001)

No. PORT PIN NAME I/O DESCRIPTION

76 P45 GRID4 OUT LEM(LED Module) control terminal. 77 P44 GRID3 OUT LEM(LED Module) control terminal. 78 P43 GRID2 OUT LEM(LED Module) control terminal. 79 P42 GRID1 OUT LEM(LED Module) control terminal.

80 P41 TAB SW IN Input terminal for judge the tape if it has TAB or not. 81 P40 POWER_ON_L OUT For control the user power switch ON/OFF. 82 P37/IC REM_IN IN Receive the remote control signal. 83 P36/NM1 CFG IN2 IN Input terminal for CAPSTAN FG signal detection. 84 P35/IRQ5 VCR-H OUT ON/OFF control of RF Modulator. 85 P34/IRQ4 SEG9 OUT LEM(LED Module) control terminal. 86 P33/IRQ3 SEG10 OUT LEM(LED Module) control terminal. 87 P32/IRQ2 REEL-T IN Input terminal of reel sensor take up. 88 P31/IRQ1 NC OUT Not used. 89 P30/IRQ0 POWER_FAIL IN Input terminal of Power fail signal.

90 P23 AC/32KHz 91 P22 SP-L OUT Tape speed SP mode at the time of LOW.

92 P21 EP-L OUT Tape speed EP mode at the time of LOW. 93 P20 AUDIO_OUT_MUTE OUT L for at AUDIO MUTE and POWER OFF. H for except above case.

The initial setting that is whether it does with subclock pulse or it

does the counting of the clock with an AC pulse

94 P17/PWM14 SEG1 TV/CA TV OUT/IN

95 P16/SCK2 SEG2 LANG SEL OUT/IN

96 P15/SI1 SEG3 INDEX OUT/IN

97 P14/S01 SEG4 OUT LEM(LED Module) control terminal. 98 P13/SCK2 SEG5 OUT LEM(LED Module) control terminal. 99 P12/SI2 SEG6 OUT LEM(LED Module) control terminal.

100 P11/SO2 SEG7 OUT LEM(LED Module) control terminal.

LEM(LED Module) control terminal.And this terminal uses it for the

initial setting of TV/CATV mode.

LEM(LED Module) control terminal.And this terminal uses it for the

initial setting of language select.

LEM(LED Module) control terminal.And this terminal uses it for the

initial setting of INDEX on/off.

1-20

SYSCON PCB IC1001 (OEC0115A)

DPG 39 PIN

DFG 38 PIN

SERVO TIMING CHART

24 Cycle

H. SW. P 24 PIN

V-SYNC (E-E) 54 PIN

REC CTL (REC) 35 PIN

V-SYNC (TRICK PB) 27 PIN

• WAVEFORM CHANGES DEPENDED ON THE TAPE SPEED

CH 1

CH 2

1-21

MECHANISM TIMING CHART

Please see the list below for the operational timing and the mode sensor output of the main parts on each mechanism modes.

MECHANISM MODE UNLOAD STOP3

Mode Dealing Directions

Revolutional Angle of MAIN CAM

Moving Quantity of MAIN ROD (mm)

MODE MS-1

SENSOR

HIGH

LOW

EJECT

STBY

206.3100

180

Output

HIGH

MS-2

LOW

INCLINED BASE S/T UNIT

PINCH ROLLER BLOCK

P5 ARM ASS'Y

(T BRAKE:LOW)

TENSION LEVER

TENSION ARM ASS'Y

(S REEL BRAKE)

VSR

S BRAKE:LOW

255

26.5

PRESS

P5-ON (T BRAKE HIGH)

BRAKE-ON

PBF.SLOW

S BRAKE:HIGH

FF/REWSTOP2

323.8303.7272.2226.4

38.53529.521.5

TENSION CONNECT

(S REEL BRAKE)

T BRAKE ARM

(T REEL BRAKE)

CLUTCH LEVER

LINK UNIT

FLAP LEVER

BRAKE-ON

CLUTCH-ON

BRAKE-ON

DIRECT

PRESS

1-22

TROUBLESHOOTING GUIDE

POWER DOES NOT TURN ON

Is the voltage at pins 15 and 22 of IC1001

about 5V?

Is the voltage at cathode

of D512 about 5V?

Check Around T501.

Yes

Check IC1001.

Check AT+5.2V line and the

check peripheral circuit.

1-23

POWER SHUTS OFF

Insert a cassette and

push PLAY button.

TROUBLESHOOTING GUIDE

Does it Power off in about

3 seconds?

Does it Power off in about

6 seconds?

Does it Power off intermittently?

Check IC1001.

Yes

Check CAPSTAN DD UNIT and

CYLINDER UNIT.

Check REEL SENSOR

and CAPSTAN BELT.

Check REEL SENSOR and

CAPSTAN BELT slack.

1-24

TROUBLESHOOTING GUIDE

CYLINDER NOT ROTATING

DURING PLAYBACK AND

RECORDING

Is the voltage at pins

11 and 12 of CP1001

about DC5V?

Yes

In playback, is the voltage

at pins 1, 4, 5 and 9 of CP1001

about DC5V?

Check IC1002.

Yes

Check pins 26, 38, 39 and 65

of IC1001 lines.

Replace CAPSTAN DD UNIT.

CASSETTE IN AND DOWN,

UNIT HAS NO FUNCTIONS

Does mode OSD

appear in Monitor?

Does VCR operate with

the remote control?

Yes

Check Operation PCB.

Yes

Check LOADING MOTOR, MODE SENSOR and the peripheral parts.

Check IC1001.

1-25

FF/REW DO NOT WORK

TROUBLESHOOTING GUIDE

Is the voltage changing

at pin 82 of IC1001 when you

press FF/REW?

Yes

Check DECK MECHANISM.

AUDIO SHAKES

Is AUDIO HEAD scratched?

Check pins 8 and 9 of IC1001 lines.

Yes

Replace AUDIO HEAD.

1-26

Does pin 40 of IC1001

output about 5Vp-p?

Yes

In playback, is the voltage

at pin 5 of CP1001 3.0V?

Yes

Check AUDIO BLOCK.

Replace CAPSTAN DD.

Check IC1001.

TROUBLESHOOTING GUIDE

CASSETTE TAPE IS NOT

ACCEPTED

Does WORM GEAR

activate?

Yes

When cassette is not

inserted, is the voltage at pin

3 of IC1001 5V?

Yes

When a cassette is

inserted, is the voltage between

pins 2 and 8 of CP1001

12V?

When a cassette is

inserted, is the voltage at

pin 63 of IC1001 5V?

Yes

Check CASSETTE LOADING BLOCK.

Check LED and PHOTO SENSOR

on DECK.

Replace LOADING MOTOR.

Replace IC1001.

Yes

Check circuit of LOADING MOTOR.

1-27

TROUBLESHOOTING GUIDE

WHEN INSERTING CASSETTE,

IT EJECTS IMMEDIATELY

Does Another cassette go down?

Are SW1001 and the lever

of the stage set correctly?

Yes

After a CASSETTE is

inserted is the voltage at pin 80

of IC1001 LOW?

Yes

Check IC1001.

Yes

Defective CASSETTE or

CASSETTE LOADING BLOCK.

Check Rec LEVER.

Check SW1001.

1-28

TAPE LOADING IS OK, BUT

UNLOADS IMMEDIATELY

TROUBLESHOOTING GUIDE

Does CYLINDER rotate?

Yes

Does TP1002 feed

HEAD SWITCHING PULSE

signal?

Is the voltage at pins 11

and 12 of CP1001 UNREG

5V?

Yes

In playback, is the voltage

at pins 1,4,5 and 9 of CP1001

about 5V?

Yes

Replace CYLINDER UNIT.

Does PG PULSE signal

appear at pin 39 of IC1001?

Check pins 26, 38, 39

and 65 of IC1001 lines.

Replace CAPSTAN DD UNIT.

Yes

Check REEL SENSOR.

Yes

Replace IC1001.

1-29

TROUBLESHOOTING GUIDE

CAPSTAN DD MOTOR NOT

ROTATING

In playback, is the voltage

at pin 1 of CP1001 12V?

Yes

Is the voltage at pin

3 of CP1001 5V?

Yes

In playback, check the

voltage at pin 25 of IC1001

is 2.5V?

Yes

Does DD MOTOR rotate now? If not, replace DD MOTOR .

Check POWER circuit.

Replace IC1001.

1-30

PLAYBACK PICTURE

JITTERS HORIZONTALLY

TROUBLESHOOTING GUIDE

Is FG Pulse output level

at pin 1 of CP1001 about 6V?

Yes

Is the voltage at pin 83 of

IC1001 about 5V?

Yes

Replace CYLINDER MOTOR.

PLAYBACK PICTURE SHAKES

Replace CYLINDER MOTOR.

Replace IC1001.

Is FG Pulse output level

at pin 1 of CP1001 about 6V?

Yes

Is the voltage at pin 4 of

CP1001 about 6V?

Yes

Replace CYLINDER MOTOR.

Replace IC1001.

1-31

TROUBLESHOOTING GUIDE

AUTO TRACKING DOES NOT

OPERATE

By manual tracking,

does the DC level at pin 59

of IC4001 change?

Yes

In auto tracking, is the

voltage at pin 14 of IC1001

more than DC1.65V?

Yes

Replace IC1001.

WHEN PLAYBACK, FAST

FORWARD OR REWIND

MODE IS ACTIVATED, UNIT STOPS

IMMEDIATELY

Does the CTL PULSE

(about 1.0Vp-p) appear at pin 37

of IC1001?

1.0Vp-p

Yes

Check CYLINDER UNIT.

Check CONTROL HEAD.

1-32

Does CAPSTAN DD MOTOR rotate?

Yes

Does the REEL SENSOR

PULSE signal appear at pin

87 and IC1001?

Yes

Check IC1001 and check

peripheral circuit.

Refer to section "CAPSTAN DD

MOTOR NOTROTATING"

Check Q1002.

TROUBLESHOOTING GUIDE

PLAYBACK PICTURE JITTERS

VERTICALLY

tracking UP/DOWN buttons, will the

Is PG SHIFTER Adjustment 6.5H?

Does tracking noise

appear in the picture?

Yes

By adjusting the manual

noise disappear in the picture?

Yes

Are GUIDE POSTS

the right height?

Yes

Check P/B ENVELOPE.

Adjust GUIDE POST height.

Adjust PG SHIFTER.

Yes

Is PB-Y waveform normal?

Check PB-Y circuit.

Yes

Replace IC1001.

1-33

NO PLAYBACK PICTURE

TROUBLESHOOTING GUIDE

Is E-E appearing on

the Monitor TV?

Yes

Is there Video signal

at pin 30 of IC4001?

Yes

Is there VIDEO signal

at pin 26 of IC4001?

Yes

Is the voltage at pins 44,

52 and 68 of IC4001 5V?

Yes

Check IC4001.

Check P.CON 5V line.

Check J4203.

Check IC4001 and the

peripheral circuit.

Check J4201.

1-34

TROUBLESHOOTING GUIDE

NO PICTURE DURING PLAYBACK

Is there Video signal at pin 26 of IC4001?

Yes

Is there Color signal

in Video signal at pin 26 of

IC4001?

Yes

Check IC4001.

Check IC4001 and check the

peripheral circuit.

Replace IC4001.

NO COLOR DURING SELF

RECORDING AND PLAYBACK

Does VIDEO signal appear

at pin 30 of IC4001?

Yes

Does VIDEO signal appear

at pin 26 of IC4001?

Yes

Check IC4001 and peripheral circuit.

Replace J4203.

Check VIDEO input circuit.

Change IC4001.

1-35

TROUBLESHOOTING GUIDE

PLAYBACK PICTURE NOISY

(EVEN AFTER CLEANING HEADS)

Is FM signal at TP4001

more than 300mVp-p?

Yes

Is VIDEO waveform

at pin 30 of IC4001 2Vp-p

are there any noises?

Yes

Is video output at pin 26

of IC4001 2Vp-p and are

there any noise?

Yes

Check J4201.

Check IC4001 and CYLINDER UNIT.

Check IC4001 and peripheral circuit.

Check IC4001 and IC1001.

1-36

NO NORMAL AUDIO ON PLAYBACK

TROUBLESHOOTING GUIDE

Does audio appear on E-E?

Yes

Does AUDIO signal appear

at pin 6 of IC4001?

Yes

Does AUDIO signal appear

at pin 10 of IC4001?

Yes

Check AUDIO HEAD for debris of stains. Check that the connector from AUDIO HEAD is fully inserted to Replace IC4001?

Refer to section "NO E-E".

Check C4031 and peripheral circuit.

Check IC4001 and peripheral circuit.

1-37

AUDIO CAN NOT BE RECORDED

TROUBLESHOOTING GUIDE

Is BIAS level O.K at T4001?

Is there AUDIO signal

at pin 10 of IC4001?

60V

Yes

Is the voltage at Emitter

of Q4003 5V?

Yes

Is the voltage at pin 23

of IC4001 above 5V?

Yes

T4001 is broken or shorted.

Check POWER circuit.

Check IC4001.

Check the circuit between

audio out of Tuner and

pin 10 of IC4001.

1-38

Check J4201 and peripheral circuit.

TROUBLESHOOTING GUIDE

RECORDING MECHANISM WORKS,

BUT NO VIDEO RECORDED FROM

INPUT JACK OR TUNER

Does VIDEO signal

appear at pins 30 and

32 of IC4001?

Yes

Does VIDEO signal appear

at pin 26 of IC4001?

Yes

Does FM signal appear

at pin 59 to IC4001?

Is the voltage at pin

56 of IC1001 5V?

Yes

Check the circuit from

VIDEO input jack to IC4001,

from Tuner Pack to IC4001.

Check IC1001.

Check IC4001.

Yes

Does the FM current

appear at pin 59 of IC4001

during the REC?

Yes

Check CYLINDER UNIT and

IC4001 circuit.

Check IC4001 and check

the peripheral circuit.

1-39

TROUBLESHOOTING GUIDE

NO E-E

(NO VIDEO FROM TUNER)

Are the plugs

connected to the

VIDEO input jacks?

Yes

Do the voltages appear at

each terminal +B(5V),

PB(5V) and TU(32V) of

TU6001?

Yes

Check VIDEO

Does VIDEO signal appear

at pin 24 of TU6001?

Disconnect the plugs from the

VIDEO input Jacks.

Check peripheral circuit.

Replace TU6001.

Yes

Is there VIDEO

waveform at pin

32 of IC4001?

Yes

Replace IC4001.

Check J4201.

1-40

NO E-E AUDIO (MONO)

TROUBLESHOOTING GUIDE

Is the voltage at pins 52,

68 and 77 of IC4001 5V?

Yes

Does signal appear

at pin 78 of IC4001?

Yes

Does signal appear

at pin 10 of IC4001?

Yes

Check J4201.

Check POWER BLOCK.

Check J4204 and J4205.

Replace IC4001.

1-41

TROUBLESHOOTING GUIDE

NO TUNER AUDIO (MONO)

Do the voltages appear at

each terminal +B(5V),

PB(5V) and TU(32V) of

TU6001?

Yes

Check POWER BLOCK.

Does signal appear

at pin 22 of TU6001?

Yes

Does signal appear

at pin 76 of IC4001?

Yes

Check J4201 and peripheral circuit.

Check TU6001 and

peripheral circuit.

Replace IC4001.

1-42

G-1 VCR System VHS Player / Recorder

System Video System NTSC

Hi-Fi STEREO Yes NTSC PB(PAL60Hz) No Deck DECK OVD-7

Loading System Front Motor 3

Heads Video Head 4Head

FM Audio Head 2Head

Normal Audio /Control Mono / Yes

Erase(Full Track Erase) Yes Tape Rec PAL Speed NTSC SP/EP(SLP)

Play PAL -

NTSC SP/EP(SLP)

Fast Forward / Rewind Time (Approx.) FF:4'50"/REW:2'30"

with Cassette T-120 Forward/Reverse NTSC or PAL-M SP/EP(SLP)=3x,5x/9x,15x Picture Search PAL or SECAM Frame Advance 1/10 Slow Speed 1/10

G-2 Tuning Broadcasting System US System M

System Tuner and System 1Tuner

Receive CH Destination USA(w/CATV)

Tuning System F-Synth Input Impedance VHF/UHF 75 OHM CH Coverage

2-69,4A,A-5~ A-1,A~I,J~ W

W+1-W+84 Intermediate Picture(FP) 45.75MHz Frequency Sound(FS) 41.25MHz

FP-FS 4.50MHz Preset CH No RF Converter Output Yes

Channel 3 or 4 ch Level/Impedance 66dBu /75ohm Sound Selector No

Stereo/Dual TV Sound Yes(US-ST)

G-3 Power Power Source AC 110-220V,50/60Hz

DC Power Consumption Power On(at AC) 10 W at 220V 60Hz

Stand by (at AC) 2.0 W at 220V 60Hz

Per Year - kWh/Year Protector Power Fuse Yes

Dew Sensor No

G-4 Regulation Safety NOM, (IEC65)

Radiation (CISPR13)

G-5 Temperature Operation 5oC - 40oC

Storage -20oC - 60oC

G-6 Operating Humidity Less then 80% RH G-7 Signal Video Signal Input Level 1 V p-p/75 ohm

Output Level 1 V p-p/75 ohm

S/N Ratio (Weighted) 50

Horizontal Resolution at SP Mode 230Line Audio Signal Input Level -8dBm/50Kohm

(0dB=0.775Vrms) Output Level -8dBm/1Kohm

S/N Ratio at SP (Weighted) 42dB

Harmonic Distortion at SP (1KHz) Typical

1.5 %

Frequency Response at SP 100Hz - 10kHz

at LP -

at SLP 100Hz - 4kHz

Hi-Fi Audio Signal Dynamic Range : More than 90dB

Frequency Response 20Hz ~20kHz

Wow And Flutter : Less than 0.01 %Wrms

Channel Separation : More than 60 dB

Harmonic Distortion : Less than 0.01

GENERAL SPECIFICATIONS

4-1

,FF(

GENERAL SPECIFICATIONS

G-8 On Screen Menu Yes

G-9 OSD Language English French Spanish G-10 Clock,Timer Calendar 1990/1/1 ~ 2081/12/31

G-11 Display Indicator Yes

Display Menu Type Character

G-CODE(or SHOWVIEW or PLUSCODE)No. Entry No NICAM 1/2,NICAM Off,Audio Output No Stereo,Audio Output,SAP Yes

Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject/Tape In (Symbol Mark)

and Timer Timer Events 8 prog/1 month Back-up One Touch Recording Max Time 5 Hours

OTPB Valid Time No Timer Back-up (at Power Off Mode) 18 Hours

Indicator Type LED Module(Amber + Red)

ATS No Timer Rec Set Yes Auto Repeat On/Off Yes SAP On Off Yes CH Set-Up Yes

Pin Code Registration No System Set-Up No Clock Set Yes (Calendar 12H) Language Yes No Noise Back Ground Yes

TV/CATV Yes Auto CH Memory Yes Add/Delete Yes

CH/AV Yes Clock Yes Repeat Yes Pin Code No Tape Counter Yes Index No Hotel Lock No Tape Speed Yes Manual Tracking (Bar Setting) No Hi-Fi Yes S-Repeat/SR-R/SR-Play No VPS No PDC No

Clock/Counter,CH,Timer Rec,OTR, Play

Cue),Rew(Rev),Stop,ATR

Rec

Pause Yes Still Yes Eject(Tape Mark Flash) Yes Slow Yes WKL,Y.M.D,Start,End No AFT No Repeat No A-DUB No VCR Yes Memory No Index No VPS No PDC No SP No LP No SLP No AM No PM Yes

F1,F2 RF Output CH Yes

Tape In Yes

Yes

4-2

G-12 Remote Unit RC-ES

Control Glow in Dark Remocon No

Format type JVC Custom Code 43 / 03 Power Source Voltage(D.C) 3V

UM size x pcs UM-4 x 2 pcs Total Keys 35 Keys Keys Power Yes

1 Yes

2 Yes

3 Yes

4 Yes

5 Yes

6 Yes

7 Yes

8 Yes

9 Yes

0/Input Select Yes

CH Up Yes

CH Down Yes

Input Select No

Play/Slow Yes

F.Fwd Yes

Rew Yes

Pause/Still Yes

Stop Yes

Rec/OTR Yes

Eject No

Counter Reset/Cancel Yes

Speed / Auto Tracking Yes

Timer Rec Yes

TV Monitor No

Quick View No

Program No

Slow No

Auto Tracking No

Set/Tracking+ Yes

Set/ Tracking - Yes

Menu Yes

Enter Yes

Cancel No

Display(Call) Yes

TV/VCR Yes

Sleep Timer No

Muting No

Clock/Counter No

Zero Return No

CM Skip No

Audio Select Yes

TV CH+ Yes

TV CH- Yes

TV Input Select Yes

TV Volume+ Yes

TV Volume- Yes

TV Power Yes

GENERAL SPECIFICATIONS

4-3

GENERAL SPECIFICATIONS

G-13 Features Auto Head Cleaning No

G-14 Accessories Owner's Manual Language English /Spanish

Auto Tracking Yes Index Search No HQ (VHS Standard High Quality) Yes Auto Power On, Auto Play, Auto Rewind, Auto Eject Yes Auto Power Off Yes Forward/Reverse Picture Search Yes VIDEO PLUS+(SHOWVIEW,G-CODE) No ATS No PDC No VPS No One Touch Playback No Picture Control No Auto CH Memory Yes Channel Lock No Hotel Lock No Anti Theft No Audio Dubbing No Remort Control Code 1/2 No SQPB Yes CATV Yes Energy Star No MTS(SAP) Yes CM Skip(30sec x 6 Times) No

w/Guarantee Card No Remote Control Unit Yes Dew Cation Sheet No Video Cassette Tape No Battery Yes

UM size x pcs UM 4 x 2pcs

Safety Tip No Toll Free Insert Sheet No Quick Set-Up Sheet No Information Sheet (Buyer Supply) No 75 Ohm Coaxial Cable Yes Rod Antenna No

Poles Terminal

Loop Antenna No

Terminal U/V Mixer No DC Car Cord (Center+) No Guarantee Card warrantee card No Warning Sheet No Circuit Diagram No Antenna Change Plug No Service Station List No Important Safeguard No Dew/AHC Caution Sheet No AC Plug Adapter Yes(SASO->VDE type) Quick Set-up Sheet Yes AC Cord No AV Cord No Registration Card No PTB Sheet No Tape Rewinder(Buyer Supply) No 300 ohm to 75 ohm Antenna Adapter No

4-4

GENERAL SPECIFICATIONS

G-15 Interface Switch Front Power Yes

Rear RF Output SW No

Indicator Power No

Terminals Front Video Input RCA x 1 (Black)

Rear Video Input No

G-16 Set Size Approx. W x D x H (mm) 360 x 224 x 95 G-17 Weight Net (Approx.) 3.2kg(7.1lbs)

G-18 Carton Master Carton No

Gift Box Yes

Drop Test Natural Dropping At 1Corner / 3Edges / 6Surfaces

Container Stuffing(40' container) 3136Sets

G-19 Cabinet Material Cabinet Front PS 94V2 or More / DECABROM

Play Yes Pause/Still No System Select No One Touch Playback No Channel Up Yes Channel Down Yes F.FWD/Cue Yes Eject/Stop Yes Main Power SW No Volume Up No Volume Down No Rew/Rev Yes Rec/OTR Yes

Stand by No Repeat No TV/VCR No Rec No T-Rec No Tape In No

Audio Input RCA x 2 (Black) Other Terminal No

Audio Input No Video Output RCA x 1 (Yellow) Audio Output RCA x 2 (White/Red) Euro Scart No DC Jack 12V(Center +) No VHF/UHF Antenna Input/Output F Type AC Inlet No

Gross (Approx.) 3.8kg(8.4lbs)

Content Material Dimensions W x D x H(mm) Description of Origin -

Material Single/White Dimensions W x D x H(mm) 420x291x160 Design As Per BUYER 's Description of Origin Yes

Height (cm) 80

4-5

VICTOR COMPANY OF JAPAN, LIMITED VIDEO DIVISION

S40894

Printed in Japan

JVC HR-J6009 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

Important Safety Precautions

DISASSEMBLY INSTRUCTIONS

Deck Chassis

Flap

Syscon PCB

2. REMOVAL OF DECK PARTS

Top Bracket

Link Unit

2-9: S REEL/T REEL/IDLER ARM ASS’Y/IDLER GEAR

A/C Head

2-13: AHC ASS’Y/CYLINDER UNIT ASS’Y

Capstan DD Unit

2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR

REMOVAL

INSTALLATION

KEY TO ABBREVIATIONS

PREVENTIVE CHECKS AND SERVICE INTERVALS

CLEANING

SERVICE MODE LIST

SERVICING FIXTURES AND TOOLS

MECHANISM ADJUSTMENT PARTS LOCATION GUIDE

MECHANICAL ADJUSTMENTS

TAPE REMOVAL METHOD AT NO POWER SUPPLY

1. CONFIRMATION AND ADJUSTMENT

1-3: CONFIRMATION OF VSR TORQUE

1-4: CONFIRMATION OF REEL BRAKE TORQUE

2. CONFIRMATION AND ADJUSTMENT OF TAPE RUNNING MECHANISM

2-1: GUIDE ROLLER

2-3: TAPE RUNNING ADJUSTMENT

ELECTRICAL ADJUSTMENTS

1. BASIC ADJUSTMENT

1-1: SWITCHING POINT CONDITIONS

IC DESCRIPTIONS

SERVO TIMING CHART

MECHANISM TIMING CHART

TROUBLESHOOTING GUIDE