JVC GY-DV500E, GY-DV500U Service Manual

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SERVICE MANUAL

DV CAMCORDER

GY-DV500U/GY-DV500E

100% recycled paper

The photo shows the GY-DV500 DV camcorder with an optional lens and viewfinder.

No. 60125

November 1999

TABLE OF CONTENTS

Section Title Page Section Title Page

Important Safety Precautions

INSTRUCTIONS

SECTION 1 SERVICE CAUTIONS AND DISASSEMBLY

1.1

RESETTING THE POWER CIRCUIT PROTECTION BREAKER ...........

1.2 REMOVING THE EXTERIOR COVERS ..................................... 1-1

1.3 LAYOUTS OF THE MAJOR BOARDS ..................................... 1-2

1.4 REMOVING THE OPTICAL BLOCK ASSEMBLY AND THE

OPTICAL FILTER ASSEMBLY .................................................. 1-3

1.5 REMOVING MAJOR BOARDS FROM THE CAMERA ............. 1-4

1.6 REMOVING THE MAJOR BOARDS FROM THE VCR ............. 1-6

1.7 DISASSEMBLY OF THE VCR UNIT ..........................................1-8

1.8 TAPE EJECTION IN CASE OF EMERGENCY .........................1-10

1.9 CAUTION FOR REPLACING THE DV MAIN BOARD AND VIDEO

SYSCON BOARD ................................................................... 1-12

1.10 FUNCTIONS OF INTERNAL SWITCHES ............................... 1-13

1.11 MODES REQUIRED IN SERVICING ...................................... 1-14

1.12 CHANGING THE COLOR MATRIX SETTING ........................ 1-16

1.13 SERVICE MENU .................................................................... 1-18

1.14 ALARM DETECTION METHODS .......................................... 1-22

1.15 BATTERY POWER DETECTION METHODS ......................... 1-23

1.16 WARNING CODES ................................................................ 1-23

1.17 ANALYSIS OF BLOCK NOISE (SYMPTOMS: POOR VIDEO,

ABSCNCE OF AUDIO) .......................................................... 1-26

1-1

SECTION 2 MECHANISM ADJUSTMENTS

2.1 BERORE ADJUSTMENTS ........................................................ 2-1

2.2 BASICS OF MECHANISM DISASSAMBLY/ASSEMBLY .......... 2-2

2.3 MECHANISM TIMIN CHART ................................................... 2-4

2.4 MAINTENANCE AND INSPECTION OF MAJOR PARTS .......... 2-5

2.5 PERIODICAL MAINTENANCE .................................................. 2-8

2.6 DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY ..... 2-9

2.7 REPLACEMENT OF MAJOR PARTS ...................................... 2-12

2.8

CONFIRMATION AND ADJUSTMENT OF MECHANISM PHASES........2-27

2.9 MECHANISM DISASSEMBLY/ASSEMBLY SHEET ................ 2-28

2.10 DISASSEMBLY PROCEDURE LIST .......................................2-30

2.11 TORQUE ADJUSTMENTS .................................................... 2-31

2.12 COMPATIBILITY ADJUSTMENT ........................................... 2-32

SECTION 3 ELECTRICAL ADJUSTMENTS

3.1 FLOWCHART OF ELECTRICAL ADJUSTMENTS .................... 3-1

3.2 FUNCTIONS REQUIRED FOR ADJUSTMENTS, SETUP .......... 3-2

3.3 STANDARD SETUP .................................................................. 3-3

3.4 ADJUSTMENT MENU ..............................................................3-3

3.5 CAMERA ADJUSTMENTS ....................................................... 3-5

3.6 VCR ADJUSTMENTS ............................................................. 3-11

3.7 DV ADJUSTMENTS (USING ADJUSTMENT SOFTWARE) .... 3-14

SECTION 4 CHARTS AND DIAGRAMS

4.1 INDEX TO PAGES OF MAIN BOARDS AND CIRCUIT BOARD

LOCATION................................................................................ 4-3

4.2 OVERALL WIRING DIAGRAM (1/2) ......................................... 4-4

• OVERALL WIRING DIAGRAM (2/2) ......................................... 4-5

4.3 ISB/ISG/ISR SCHEMATIC DIAGRAM

4.4 ISB/ISG/ISR CIRCUIT BOARD .................................................. 4-7

4.5 TG(Timing Generator) SCHEMATIC DIAGRAM 14................. 4-8

4.6 TG CIRCUIT BOARD ................................................................ 4-9

4.7 CAM1(CAMera 1) SCHEMATIC DIAGRAM (1/2) 15............ 4-10

• CAM1 SCHEMATIC DIAGRAM (2/2) 15............................... 4-11

4.8 CAM1 CIRCUIT BOARD .........................................................4-12

4.9 CAM2(CAMera 2) SCHEMATIC DIAGRAM (1/3) 16............ 4-14

• CAM2 SCHEMATIC DIAGRAM (2/3) 16............................... 4-15

• CAM2 SCHEMATIC DIAGRAM (3/3)16................................ 4-16

4.10 CAM2 CIRCUIT BOARD ........................................................ 4-17

4.11 PS(Power Supply)1,

PS2 SCHEMATIC DIAGRAM (1/2)

• PS1, PS2 SCHEMATIC DIAGRAM (2/2)

4.12 PS1, PS2 CIRCUIT BOARD ................................................... 4-21

4.13 IF(InterFace), ROM(Read Only Memory)

SCHEMATIC DIAGRAM

4.14 IF, ROM CIRCUIT BOARD ..................................................... 4-23

4.15 SWRU, JOG SCHEMATIC DIAGRAM

4.16 SWF, SWRM, SWRB, SWPW, MIC, BNC SCHEMATIC DIA-

GRAM

4.17 SWRU, JOG, SWF, SWRM, SWRB, SWPW, MIC, BNC, FL

4.18 VIDEO/SYSCON SCHEMATIC DIAGRAM (1/2) 31............. 4-27

• VIDEO/SYSCON SCHEMATIC DIAGRAM (2/2) 31............. 4-28

4.19 VIDEO/SYSCON CIRCUIT BOARD ........................................ 4-29

4.20 AUDIO/LCD SCHEMATIC DIAGRAM (1/2) 32.................... 4-30

• AUDIO/LCD SCHEMATIC DIAGRAM (2/2) 32.................... 4-31

4.21 AUDIO/LCD CIRCUIT BOARD .............................................. 4-32

• AUDIO/LCD CIRCUIT BOARD

4.22 REG(REGulater) SCHEMATIC DIAGRAM 33..................... 4-34

4.23 REG CIRCUIT BOARD........................................................... 4-35

4.24 MOTHER SCHEMATIC DIAGRAM 34............................... 4-36

4.25 MOTHER, AU JUNK CIRCUIT BOARD ................................. 4-37

4.26 AU JUNK SCHEMATIC DIAGRAM 39............................... 4-38

4.27

4.28 CONNECT, REMOTE, XLR, EAR.J, SEN1, SENS2 SCHEMATIC

4.29 OPE, PWR JUNC, CONNECT, REMOTE, XLR, EAR.J, SEN1,

4.30 VTR UNIT OVERALL WIRING DIAGRAM ............................. 4-42

4.31 DV MAIN SCHEMATIC DIAGRAM (1/7) 10........................ 4-43

• DV MAIN SCHEMATIC DIAGRAM (2/7) 10........................ 4-44

• DV MAIN SCHEMATIC DIAGRAM (3/7) 10........................ 4-45

• DV MAIN SCHEMATIC DIAGRAM (4/7) 10........................ 4-46

• DV MAIN SCHEMATIC DIAGRAM (5/7) 10........................ 4-47

• DV MAIN SCHEMATIC DIAGRAM (6/7) 10........................ 4-48

• DV MAIN SCHEMATIC DIAGRAM (7/7) 10........................ 4-49

4.32 DV MAIN CIRCUIT BOARD ................................................... 4-50

• DV MAIN CIRCUIT BOARD (FOR SERIAL No.⳯⳯⳯⳯0332

4.33 PR & MDA SCHEMATIC DIAGRAM (1/2) 01...................... 4-52

• PR(Pre Rec) & MDA(Motor Drive Amp.) SCHEMATIC DIAGRAM

23/ 24/ 25/ 26/ 27/ 28

CIRCUIT BOARD ................................................................... 4-26

(FOR SERIAL No.⳯⳯⳯⳯0732 AND AFTER OF GY-DV500U,⳯⳯⳯⳯0840

AND AFTER OF GY-500E) ........................................................................... 4-32-2

PWR JUNC, OPE(OPEration) SCHEMATIC DIAGRAM

DIAGRAM

SENS2 CIRCUIT BOARD ....................................................... 4-41

AND AFTER OF GY-DV500U, ⳯⳯⳯⳯0545 AND AFTER OF GY-

DV500E) ............................................................................ 4-50-2

(2/2) 01............................................................................... 4-53

42/ 38/ 40/ 43/ 36/ 37

21/ 19

11/ 12/ 13

17/ 18

....................................... 4-22

22/ 20

................................ 4-25

.......................... 4-40

.............. 4-6

......................... 4-19

................. 4-20

................... 4-24

41/ 35

..... 4-39

4.34 PR & MDA CIRCUIT BOARD ................................................ 4-54

4.35 ROM, CONN. SCHEMATIC DIAGRAM

4.36 DCDC SCHEMATIC DIAGRAM 02..................................... 4-56

4.37 DCDC, ROM, CONN. CIRCUIT BOARD ................................ 4-57

4.38 IS &TG BLOCK DIAGRAM (G channel) ................................. 4-58

4.39 CAM1 BOARD BLOCK DIAGRAM ........................................ 4-59

4.40 CAM2 BOARD BLOCK DIAGRAM ........................................ 4-60

4.41 IF, SWF, SWRU BLOCK DAIGRAM .......................................4-61

4.42 SYSCON BLOCK DIAGRAM ................................................. 4-62

4.43 LCD BLOCK DIAGRAM......................................................... 4-63

4.44 VIDEO BLOCK DIAGRAM ..................................................... 4-64

4.45 REG BLOCK DIAGRAM ........................................................ 4-64

4.46 AUDIO BLOCK DIAGRAM .................................................... 4-65

4.47 DV BLOCK DIAGRAM 1/2 ..................................................... 4-66

• DV BLOCK DIAGRAM 2/2 .....................................................4-67

4.48 IC BLOCK DIAGRAM ........................................................... 4-68

03/ 04

................. 4-55

SECTION 5 EXPLODED VIEW AND PARTS LIST

5.1 CAMERA HEAD ASSEMBLY M1............................................ 5-3

5.2 CABINET ASSEMBLY M2....................................................... 5-4

5.3 RIGHT SIDE COVER ASSEMBLY M3...................................... 5-7

5.4 CHASSIS ASSEMBLY M4....................................................... 5-8

5.5 VTR UNIT ASSEMBLY M5.................................................... 5-11

5.6 MECHANISM ASSEMBLY M6.............................................. 5-12

SECTION 6 ELECTRICAL PARTS LIST

6.1 PR & MDA BOARD ASSEMBLY PARTS LIST 01................... 6-2

6.2 DCDC BOARD ASSEMBLY PARTS LIST 02.......................... 6-3

6.3 ROM BOARD ASSEMBLY PARTS LIST 03............................ 6-4

6.4 CONN. BOARD ASSEMBLY PARTS LIST 04......................... 6-4

6.5 DV MAIN BOARD ASSEMBLY PARTS LIST 10..................... 6-5

6.6 ISB BOARD ASSEMBLY PARTS LIST 11............................ 6-11

6.7 ISG BOARD ASSEMBLY PARTS LIST 12............................. 6-11

6.8 ISR BOARD ASSEMBLY PARTS LISTT 13........................... 6-12

6.9 TG BOARD ASSEMBLY PARTS LISTT 14........................... 6-12

6.10 CAM1 BOARD ASSEMBLY PARTS LIST 15....................... 6-13

6.11 CAM2 BOARD ASSEMBLY PARTS LIST 16....................... 6-17

6.12 PS1 BOARD ASSEMBLY PARTS LIST 17........................... 6-21

6.13 PS2 BOARD ASSEMBLY PARTS LIST 18........................... 6-21

6.14 ROM BOARD ASSEMBLY PARTS LIST 19......................... 6-22

6.15 JOG BOARD ASSEMBLY PARTS LIST 20.......................... 6-22

6.16 IF BOARD ASSEMBLY PARTS LIST 21.............................. 6-23

6.17 SWRU BOARD ASSEMBLY PARTS LIST 22...................... 6-23

6.18 SWF BOARD ASSEMBLY PARTS LIST 23......................... 6-24

6.19 SWRM BOARD ASSEMBLY PARTS LIST 24...................... 6-24

6.20 SWRB BOARD ASSEMBLY PARTS LIST 25....................... 6-24

6.21 SWPW BOARD ASSEMBLY PARTS LIST 26...................... 6-24

6.22 MIC BOARD ASSEMBLY PARTS LIST 27.......................... 6-25

6.23 BNC BOARD ASSEMBLY PARTS LIST 28.......................... 6-25

6.24 VIDEO/SYSCON BOARD ASSEMBLY PARTS LIST 31....... 6-25

6.25 AUDIO/LCD BOARD ASSEMBLY PARTS LIST 32.............. 6-28

6.26 REG BOARD ASSEMBLY PARTS LIST 33.......................... 6-31

6.27 MOTHER BOARD ASSEMBLY PARTS LIST 34.................. 6-33

6.28 OPE BOARD ASSEMBLY PARTS LIST 35.......................... 6-33

6.29 SEN1 BOARD ASSEMBLY PARTS LIST 36........................ 6-33

6.30 SENS2 BOARD ASSEMBLY PARTS LIST 37...................... 6-33

6.31 REMOTE BOARD ASSEMBLY PARTS LIST 38.................. 6-33

6.32 AU JUNK BOARD ASSEMBLY PARTS LIST 39.................. 6-34

6.33 XLR BOARD ASSEMBLY PARTS LIST 40........................... 6-35

6.34 PWR JUNC BOARD ASSEMBLY PARTS LIST 41............... 6-35

6.35 CONNECT BOARD ASSEMBLY PARTS LIST 42................ 6-35

6.36 EAR.J BOARD ASSEMBLY PARTS LIST 43....................... 6-35

SECTION 7 PACKING

7.1 PACKING ASSEMBLY M7....................................................... 7-1

7.2 FACTORY SETTING OF SWITCH AND VR ...............................7-2

SECTION 8 DESCRIPTION OF NEW CIRCUITRY

8.1 OUTLINE OF DV ....................................................................... 8-1

8.2 MAJOR SIGNAL PROCESSING OPERATIONS OF DV ............ 8-6

8.3 VIDEO/AUDIO SIGNAL PROCESSING IN RECORDING

CIRCUITRY ............................................................................... 8-7

VIDEO/AUDIO SIGNAL PROCESSING IN PLAYBACK CIRCUITRY ..

8.4

8.5 CAPSTAN SERVO................................................................... 8-20

8.6 DRUM SERVO ........................................................................ 8-22

8-18

SECTION 9 CIRCUIT DESCRIPTION

9.1 CAMERA HEAD CIRCUITRY .................................................... 9-1

9.2 DVC CIRCUIT ........................................................................... 9-4

9.3 MECHANISM OPERATION DESCRIPTION ............................ 9-20

9.4 EXPLANATION OF NEW FUNCTIONS ................................... 9-26

Important Safety Precautions

Connector

Metal sleeve

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).

cut close to connector

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

7. Observe that wires do not contact heat producing parts

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

9. When a power cord has been replaced, check that 10-15 kg of

10. Also check areas surrounding repaired locations.

11. Products using cathode ray tubes (CRTs)

Fig.1

(heatsinks, oxide metal film resistors, fusible resistors, etc.)

pointed parts.

force in any direction will not loosen it.

Power cord

Fig.2

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.

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



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.

Chassis

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.

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

Exposed accessible part

Grounding Specifications

Region

USA & Canada

Europe & Australia

Externally exposed accessible

Grounding Impedance (Z)

art

≤

Z 0.1 ohm

≤

Z 0.5 ohm

Power cord, primary wire

Fig. 9

Milli ohm meter

Fig. 10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

200 to 240 V

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.

Region

Japan R 1 MΩ/500 V DC

USA & Canada

Europe & Australia R 10 MΩ/500 V DC

Region Load Z

Japan

USA & Canada

Europe & Australia

Table 2 Leakage current specifications for each region

Insulation Resistance (R)

≤

–

≤

Table 1 Specifications for each region

1 kΩ

0.15 µF

1.5 kΩ

2 kΩ

50 kΩ

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 miute

AC 900 V 1 minute AC 3 kV 1 minute

AC 1.5 kV 1 minute

i 1 mA rms Exposed accessible parts

i 0.5 mA rms

i 0.7 mA peak i 2 mA dc

≤

≤ ≤

(Class 2)

(Class 1)

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

Exposed accessible parts

Antenna earth terminals

Other terminals

SECTION 1

SERVICE CAUTIONS AND DISASSEMBLY

1.1 RESETTING THE POWER CIRCUIT PROTECTION BREAKER

This unit employs a power circuit protection breaker in place of a fuse to disconnect from the main power and to thus protect the internal circuitry from damage caused by any current overload. The power can be re-connected by resetting the breaker.

To prevent any complications resulting from the failure, check the cause of the shutdown and repair it before resetting the circuit breaker.

(1) Switch OFF the POWER of this unit as well as that of any

equipment supplying power to it.

(2) The circuit breaker

Press the BREAK button to re-connect the power line.

is located below the VCR at the rear.

1.2.2 Opening the Right Side Cover

(1) Loosen the 4 screws

Fig. 1-2-2(1) Opening the Right Side Cover

(2) Flip open the right side cover toward the front.

Fig. 1-1 Position of the Circuit Breaker

1.2 REMOVING THE EXTERIOR COVERS

1.2.1 Removing the Left Side Cover

(1) Open the cassette door by pressing the EJECT switch. (2) Loosen the 4 screws

Cassette cover

and remove the left side cover.

EJECT switch

Fig. 1-2-2(2) View of the Opened Right Side Cover

1.2.3 Removing the Bottom Cover

(1) Remove the left side cover (see section 1.2.1). (2) Remove the 2 screws

Fig. 1-1).

(3) Remove the 4 screws

and remove the shoulder pads (see

and remove the bottom cover.

Fig. 1-2-1 Removing the Left Side Cover

Fig. 1-2-3 Removing the Bottom Cover

1-1

1.3 LAYOUTS OF THE MAJOR BOARDS

On the side of the left-hand side cover

03ROM 10DV MAIN

37SENS2

38REMOTE

28BNC

27MIC

16CAM2

On the side of the bottom cover

42CONNECT

40XLR

43EAR.J

41PWR JUNC

VCR section

39AU JUNK

On the side of the right-hand side cover

19ROM 15CAM1

35OPE 22SWRU 20JOG

11ISB 12ISG 13ISR

14TG

23SWF

21IF

25SWPB

26SWPW

24SWRM

17PS1, 18PS2

36SEN1

04CONN.

34MOTHER

31VIDEO/SYSCON

32AUDIO/LCD

02DCDC

01PR & MDA

1-2

1.4 REMOVING THE OPTICAL BLOCK ASSEMBLY AND

THE OPTICAL FILTER ASSEMBLY

(1) Remove the right side cover (see section 1.2.2). (2) Remove the screw

retaining the ROM board.

(5) Loosen the 2 screws (6) Remove the optical filter assembly in the direction of the

arrow.

and remove the connector Å.

(3) Remove the 4 screws

ROM board

Fig. 1-4-1

S.S.F. ID label for VIDEO/SYSCON board

Fig. 1-4-2

(4) Pull out the optical block assembly and the front panel to-

gether toward the front.

CAUTION

Be careful not to damage the boards or the FC cables.

Fig. 1-4-3

(7) Remove the 4 screws

board mounting brackets.

(8) Flip open CN11, CN12 and CN13 and unplug the flexible

cables.

CN11

and remove the TG board and CP

Fig. 1-4-4(1)

CN12

CN13

Fig. 1-4-4(2)

1-3

(9) Remove the 4 screws

sembly from the front panel.

and separate the optical block as-

Fig. 1-4-5

NOTES

• The CCDs are bonded precisely to the prism. In case of trouble with a CCD, it is not possible to replace an individual CCD, but the entire optical block assembly should be replaced.

• The optical block assembly supplied as a service part (SCM1049-N0A (NTSC)/P0A (PAL)) is not equipped with the DR board. When replacing the optical block assembly, attach the surrounding PC boards to the new assembly before mounting it in the camera.

1.5 REMOVING MAJOR BOARDS FROM THE CAMERA

1.5.1 Removing the CP and TG Boards.

(1) Remove the right side cover (see section 1.2.2). (2) Remove the 4 screws retaining the front panel (see section

1.4.3).

(3) Pull out the optical block assembly and the front panel to-

gether toward the front.

(4) Remove the screw retaining the ROM board. Now the ROM

board can be removed.

(5) Remove the 4 screws

. Now the CP board can be removed.

Fig. 1-5-1(1)

Fig. 1-4-6 Optical Block Assembly for Servicing

CAUTION

When mounting the optical block assembly in the camera, take care of the positioning of the wire assembly. A malfunction may occur if a wire is somehow caught up.

(6) Remove the CP board, then remove the 4 stud screws 4.

Now the TG board is disengaged from the stay.

(7) Unplug the flexible cables connecting the IS boards and the

TG board. Now the TG board can be removed.

Fig. 1-5-1(2)

1-4

1.5.2 Removing the CAM1 Board

(1) Remove the left side cover (section 1.2.1). (2) Remove the 6 screws (3) The DV MAIN board on the VCR side and the CAM2 board

are connected by a board-to-board connector. Open the two boards together in the direction of the arrow.

1.5.3 Removing the SW Boards

(1) Open the right side cover (see section 1.2.2). (2) The JOG, SWRU, SWRM, SWPW and SWRB boards are

attached on the right side cover. Remove them as required.

Fig. 1-5-3

1.5.4 Removing the PS 1 & 2 board.

(1) Open the right side cover (see section 1.2.2). (2) Remove the 2 screws (3) Pull out the PS 1 & 2 board, along the guide rail in the direc-

tion of the arrow.

retaining the PS 1 & 2 board.

Fig. 1-5-2(1)

(4) The opened boards can be secured by fitting them into the

notches on the VCR side frame as shown in the figure.

Fig. 1-5-2(2)

Fig. 1-5-4

The operation of the VCR can be confirmed when the circuit boards are tilted. When the circuit boards are tilted, take care that the electrical circuitry on each board is not short-circuited by the BNC connector located below the board.

1-5

1.6 REMOVING THE MAJOR BOARDS FROM THE VCR

1.6.1 Removing the VIDEO/SYSCON Board and Audio/ LCD Board

(1) Open the right side cover (see section 1.2.2).

The VIDEO/SYSCON board is clamped to the right side cover.

(2) Remove the 2 screws

can be removed.

. Now the VIDEO/SYSCON board

Fig. 1-6-1(1)

(3) After removing the VIDEO/SYSCON board, remove the 6

screws be removed.

and 2 studs 3. Now the AUDIO/LCD board can

Fig. 1-6-1(2)

Fig. 1-6-2(1)

(4) Remove the EJECT switch wire

and power supply wire

Fig. 1-6-2(2)

1.6.3 Removing the DV MAIN Board

(1) Remove the VCR unit (see section 1.6.2). (2) Remove the 4 screws (3) Now the DV MAIN board can be removed.

1.6.2 Removing the VCR Unit

(1) Remove the left side cover (see section 1.2.1). (2) Remove the 4 screws (3) Pull out the VCR unit gently in the direction of the arrow. As

the VCR unit is connected to the CAM2 board with a boardto-board connector, disconnect it gently.

1-6

Fig. 1-6-3(1)

(4) After removing the DV MAIN board, leave it standing up by

fitting it into the notches on the unit frame, as shown in the figure.

(3) Unplug the power cable that supplies power from the bat-

tery case to the main unit, from the connector

Fig. 1-6-3(2)

1.6.4 Removing the Battery Case

(1) Remove the 2 screws 1 and remove the rear cover of the

battery case.

(2) Remove the 4 screws

the main unit.

and remove the battery case from

Rear cover

Fig. 1-6-4(1)

Fig. 1-6-4(3)

1.6.5 Removing the REG Board

(1) Remove the battery case (see section 1.6.4). (2) Remove the 2 screws

(3) Remove the 2 screws

and remove the panel.

Fig. 1-6-5(1)

and remove the REG board.

Fig. 1-6-4(2)

Fig. 1-6-5(2)

1-7

1.7 DISASSEMBLY OF THE VCR UNIT

The mechanism unit incorporated in the unit can be disassembled as described below. Note that the following description deals only with the method of removing the mechanism unit from the VCR unit.

1.7.1 Disassembling the Front Part of the Unit

(1) Remove the VCR unit from the camera (see section 1.6.2). (2) Remove the DV MAIN board (see section 1.6.3). (3) Remove the 2 screws

cover. The cover of the cassette insertion slot will come out together with it.

and remove the stay on the front

1.7.2 Disassembling the Rear Part of the Unit

(1) Remove the 2 screws

and remove the rear side stay.

Fig. 1-7-2(1)

(4) Remove the 2 screws

Fig. 1-7-1(1)

and remove the front stay.

(2) Remove the 2 screws

During this operation, be careful not to apply excessive force to the wire that is connected between the active head cleaner assembly and CN609 on the PR & MDA boards.

and remove the active head cleaner.

Fig. 1-7-2(2)

(3) Remove the 2 screws

and remove the side stays.

1-8

Fig. 1-7-1(2)

Fig. 1-7-2(3)

(4) Insulators (blue) are attached to the retaining screws. Be

sure to attach the insulators when re-assembling the side stays.

(5) The side stays to both sides are attached in the same way.

Remove the 2 screws

and remove the side stays.

Fig. 1-7-3

Fig. 1-7-2(4)

(6) After removing the rear stays and side stays (left and right),

remove the 2 screws 7 then remove the PR & MDA board. When removing the PR & MDA boards, be careful not to damage the wires and FFCs connecting them to the deck assembly housing motor and power supply board.

Fig. 1-7-2(5)

1.7.4 Removing the Mechanism Unit

(1) Remove the 3 screws 8. This allows the mechanism unit

to be removed from the stays When it is required to disassemble the mechanism unit itself, see SECTION 2.

Fig. 1-7-4(1)

(2) When the remove the mechanism unit completely, also re-

move the connector

from the rear.

1.7.3 Removing the Cassette Housing Assembly

(1) Remove the 2 screws

assembly.

and remove the cassette housing

Fig. 1-7-4(2)

1-9

1.8 TAPE EJECTION IN CASE OF EMERGENCY

When the cassette tape cannot be ejected normally, take it out by the following methods.

1.8.1 Tape Ejection Using Forced Eject Mode (Short-circuiting of Internal TP)

GY-DV500 is provided with a compulsory eject mode for use in case the button operations are not accepted due to a malfunction of the mechanism control circuitry. When an attempted operation of the operation buttons is not accepted, set the compulsory eject mode as described below before removing the tape.

CAUTION

䡲 This mode is effective only when the electrical and me-

chanical systems of the mechanism unit are normal and a tape ejection operation is not accepted due to a problem of the electrical system.

䡲 If there is a problem in the mechanical system of the unit,

this mode may be ineffective. If compulsory ejection is performed in such a case, the tape could be damaged or cut.

(1) Remove the left side cover (see section 1.2.1). (2) With the power supply on, short-circuit TP107 on the DV

MAIN board with the GND using a wire, etc.

(3) Forced ejection is activated to eject the tape.

(3) Apply 3 V DC to the electrodes at the top of the loading

motor (red wire to + pole, brown wire to - pole) to unload the tape. Unload it little by little because it could be damaged or contaminated by grease if the pole base assemblies are returned completely beyond the position of the tape.

Brown wire

Red wire

Fig. 1-8-2(1)

(4) If the tape slackens, take it up by rotating the shaft at the

top of the capstan motor in the direction of the arrow using a sharp-tipped object (chip IC replacement tool, etc.).

(5) Repeat steps (3) and (4) above until the tape is taken up

completely.

(6) After confirming that the tape has been taken up completely,

rotate the gear of the cassette housing assembly in the direction of the arrow in order to eject the cassette tape.

TP107

DV MAIN board

Fig. 1-8-1

1.8.2 Tape Ejection without Using the Forced Eject Mode

Activate the loading motor by applying DC voltage to its two terminals.

NOTE

When a forced ejection is not accepted because the loaded cassette tape cannot be ejected due to a fault in the electrical system or because of some problem in the mechanism unit, eject the tape by using the following procedure. However, as this mode drives the loading motor, it assumes that the mechanical system is operating normally.

(1) Turn off the power supply to the unit. (2) Flip open the DV MAIN board to expose the mechanism

(see section 1.6.3).

1-10

Shaft

Fig. 1-8-2(2)

Gear

1.8.3 Manual Tape Ejection

If the loading motor cannot be run by the procedure outlined in section 1.8.2, the mechanism may be defective. When the loading motor is defective, remove the tape as described below.

(1) Remove the mechanism unit from the main unit. See sec-

tion 1.6.2 for the removal method.

(2) After removing the mechanism unit, remove the DV MAIN

board (see section 1.6.3).

(3) Remove the 2 screws and remove the active head cleaner

assembly (see section 1.7.2). (4) Remove the side cover to easy operation (see section 1.7.2). (5) Remove the 2 screws and remove the rear panel from the

side of the PR & MDA board.

Carefully unplug the wires so as not to damage them, then

remove the PR & MDA board (see section 1.7.2).

Fig. 1-8-3(3)

(9) Unload the pole base assemblies by rotating the gear shown

in the figure in the direction of the arrow.

Loading motor

(6) Remove the 2 screws

stay.

(7) Loosen the 2 screws

rated freely. (8) Remove the 4 screws

Fig. 1-8-3(1)

and remove the active head cleaner

Fig. 1-8-3(2)

so that the cassette housing is sepa-

and remove the loading motor.

Gear

Fig. 1-8-3(4)

(10) The pole base assemblies should be unloaded little by lit-

tle. If they are returned completely beyond the position of the tape, the tape may slacken and become damaged or stained by grease.

(11) If the tape slackens, take it up by rotating the shaft on the

top of the capstan motor in the direction of the arrow using a sharp-tipped object (chip IC replacement tool, etc.) (see section 1.8.2-(4)).

(12) Repeat steps (9) and (10) above until the tape is taken up

completely.

(13) After confirming that the tape has been taken up com-

pletely, tighten the cassette housing retaining screws which were loosened in step (6).

(14) Attach and clamp the cassette housing again, then rotate

the gear of the housing assembly in the direction of the arrow to eject the cassette tape in the same way as in section 1.8.2-(6).

1-11

1.9 CAUTION FOR REPLACING THE DV MAIN BOARD AND VIDEO SYSCON BOARD

When the DV MAIN board or VIDEO SYSCON board has been replaced for servicing, be sure to enforce the following items.

1.9.1 DV MAIN Board

[A] About the ID Management Label

Each VCR unit carries an ID label in compliance with IEEE1394 showing the unique ID assigned on the production line. (See the following figure for the label position.) When replacing the DV MAIN board, remove the ID management label that was provided originally with the unit from the defective board and attach it in the same position to the new board.

DV MAIN board

[B] Load EEPROM Internal Data

The EEPROM provided with the new board for replacement contains no data, while the EEPROM originally provided with the VCR unit contains the IEEE1394 ID data as well as all adjustment data written in the assembly and adjustments written on the production line. This means that the new VCR unit will not function if the new EEPROM is used in the condition in which it is delivered. When replacing the DV MAIN board, load the internal data of the EEPROM on the original board to the EEPROM of the new board.

(1) How to use original EEPROM to new DV MAIN board.

Remove the EEPROM from the original DV MAIN board, and attach the chip to the new board.

(2) How to write data from the original board to the new

EEPROM How to load all parameters in EEPROM on original board to new EEPROM by using the adjustment software. (For details, see section 3.7.13)

(3) In case of original EEPROM on the original DV MAIN board

was broken. Load the default data before making adjustments with the adjustment software, write the data in the new EEPROM, then make adjustments by following the adjustment procedures. (See section 3.7.12 for details.) And then, input the ID number on the original board to new EEPROM by using the adjustment software. (See section

3.7.13 for details.)

ID Label

Fig. 1-9-1

1.9.2 VIDEO SYSCON Board

[A] Transporting of IC407 (EEPROM) Data

When the SSF function is used, the cassette number recorded on tape (see section 9.4.1) has the model ID code appended to it. The model ID code is written in IC407 (EEPROM). However, as the new EEPROM mounted on the new replacement circuit board does not have the ID code written into it, the SSF function cannot work normally (the model ID code should be written in IC407 for the correct operation of the SSF function). Nevertheless, no means is provided for transporting the model ID code from the original EEPROM to the new EEPROM. Therefore, it is recommended to remove the original IC from the original board and mount it on the new board.

[B] ID Management Label

An ID management label is attached to the camera head. For the position, see Fig. 1-4-1.

1-12

1.10 FUNCTIONS OF INTERNAL SWITCHES

1.10.1 DIP Switch S901 on ROM Board

Symbol ShipmentFunctionNameNo.

1 Adjustment mode Adjustment mode ON/OFF OFF 2 Check mode Check mode ON/OFF OFF 3 Not used OFF

S901

4 Character mixing TEST OUT character display ON/OFF OFF 5 Not used OFF 6 Color matrix adjustment Color matrix adjustment mode ON/OFF OFF 7 Setup (NTSC model only) ON (0% setup)/ OFF (7.5% setup) OFF 8 Function setting Initial setting of camera functions OFF

Table 1-10-1

(1) Adjustment mode (S901-1)

Set S901-1 to ON to initiate the camera electrical adjustment mode. For details, see section 3.3.

(2) Check mode (S901-2)

Set S901-2 to ON to display the camera’s check mode screen on the viewfinder. In this mode, the auto white balance and auto iris control data in the microcomputer controlling the camera can be viewed and checked. (This mode is not used for adjustments but is intended to simply allow the checking of control values and their functions.)

R-G

–

B-G R GAIN LEVEL B GAIN LEVEL PEAK APL NAM ERROR GAIN ∗dB

CHECK MODE

–

: ∗ : ∗ : ∗ : ∗ : ∗ : ∗ : ∗ : ∗

Fig. 1-10-1(1)

R-G/B-G

Shows the data on the R/G/B signals input to the CPU for use in white balance control in terms of R-G and B-G. The values are variable between -127 and 128. These values approach 0 if the white balance circuit is activated by capturing a non-color image such as a gray scale.

R GAIN LEVEL/B GAIN LEVEL

Show the levels of the R and B channel white balance control signals. These values are variable between 0 and 255. The R value tends to decrease and the B value tends to increase under low color temperatures (reddish lighting), and the R value tends to increase and the B value tends to decrease under high color temperatures (bluish lighting).

PEAK

Shows the peak hold value of the video signal in a vertical scanning period.

APL

Shows the average picture signal level.

NAM ERROR

Shows the NAM value used in the auto iris control. The value is variable between -127 and 128. The value approaches 0 when the auto iris control approaches the optimum level.

GAIN

Shows the electrical gain value set with the GAIN switch on the right-hand side of the unit. Shows “ALC” in the full auto-shooting mode.

1-13

(3) Character mixing (S901-4)

Set S901-4 to ON to superimpose the same characters as those displayed on the viewfinder-screen in the output signal from the TEST OUT terminal. This is a convenient facility for adjustment because the adjustment menu and screen can be displayed on an external monitor.

(4) Color-matrix adjustment (S901-6)

Set S901-6 to ON to view the color-matrix adjustment-mode screen on the Viewfinder-screen. This mode makes it possible to set color-matrix parameters in details (see section 1.12).

* Note that the color-matrix adjustment is not a normal adjust-

ment item. It is usually not required to adjust the color-matrix because this has been set to the optimum level before shipment.

* In case a color-matrix adjustment becomes necessary be-

cause of a user’s request, it should be performed in accordance with the description in section 1.2.

(5) Setup (S901-7): NTSC only

Set S901-7 to ON or OFF to select whether or not the output signal setup is included in the TEST OUT and MONITOR OUT terminals output. (Note that the signal recorded onto tape is not affected by the position of this switch. The signal is always recorded without the setup information.) As changing the position of this switch does not alter the signal level, it is not necessary to re-adjust the signal recording according to the position of this switch. This switch is effective only on the camera video output. With the video signal obtained by playing back a previously recorded tape, whether the setup is included or not can be selected with the item “SETUP” in the Service Menu (see section 1.13.3).

(6) Function setting (S901-8)

This switch is used to set the functions shown in Table 1-91(2). This switch is usually used to switch the defaults of the domestic and export-oriented models.

S901-8

Function

GAIN

V. SCAN

ALC GAIN

OFF ON

0 dB

6 dB

9 dB

60.1 to 251.3

0 to + 18 dB

NTSC

60.1 to 2067.0

0 to + 18 dB

0 dB

9 dB

18 dB

PAL

Do not care

0 dB

9 dB

18 dB

50.1 to 2053.6

0 to + 18 dB

1.11 MODES REQUIRED IN SERVICING

1.11.1 Camera Service Menu

The CAMERA SERVICE MENU can be displayed on the viewfinder screen by setting the [POWER] switch to ON while tilting the AUTO WHITE/ACCU FOCUS switch upward (toward AUTO WHITE).

— — — CAMERA SERVICE MENU — — —

Cxxxx V

CCD CORRECT : ON

ERROR DETECT START

WHITE CLIP LEVEL : 108%

END

∗. ∗∗

Fig. 1-11-1

Select an item by turning the SHUTTER dial, and push the SHUTTER dial to select or set it. Cxxxx V∗.∗∗ This item displays the version number of the camer control software (IC902 on ROM board). * The Character “U” after the Version No. indicates that U

version software is running. When “E” is shown here, the software for E version is running.

CAUTION

Also be sure to reset the system after replacing IC902 (ROM) on the ROM board. See section 1.11.2, “System Reset”.

CCD CORRECT (ON/OFF)

This item sets whether white blemish due to CCD is to be corrected or not.

To correct : ON

Do not correct : OFF The factory shipment condition is ON. Even when OFF is selected with this menu, it is temporary and the correction status (ON) is recalled automatically the next time the power is turned on.

NOTE

• To correct any white blemish interference produced after the factory shipment, perform the “ERROR DETECT START” described on the next page. Be sure to warm up the camera by leaving it on for more than 2 hours before performing the “ERROR DETECT START”.

Table 1-9-1(2)

* The L/M/H positions of GAIN can also be set individually

using the [CAMERA MENU].

1-14

• The white blemish correction is performed with the lens iris closed or with the lens cap on. In normal use, the lens iris closes automatically when performing a white blemish correction. However in a case when the lens cable is disconnected and the lens iris cannot be closed, “ERROR DETECT FAIL” will be displayed on the viewfinder and the white blemish correction cannot be executed. Before performing the white blemish correction again, be sure to first close the lens.

ERROR DETECT START

When this item is selected and the SHUTTER dial is pushed, the white blemish detection for correcting CCD white blemish starts automatically. The following messages are displayed on the viewfinder screen during detection.

1.11.2 System Reset

While pushing the [SHUTTER] dial, press the [POWER] switch to ON. This resets the system and initializes the menu set items to their default values. The following description shows items that are initialized to the defaults by a system reset and those that are not.

ERROR DETECT EXECUTING

↓

ERROR DETECT END

After the completion of error detection, the camera is automatically set to the white blemish correction ON condition.

The following types of white blemish can be corrected. (1) White blemish correction target area

Correction target area

90%

1.11.3 Resetting DSP Data

While pushing the [SHUTTER] dial and [STATUS] switch tilted toward “SKIN AREA”, press the [POWER] switch to ON. This resets the internal setting data (color matrix setting data) in the DSP to the default setting.

1.11.4 Displaying Auto Iris Area Gate

While holding the [AUTO WHITE/ACCU FOCUS] switch down (toward ACCU FOCUS), press the [POWER] switch to ON. The area gate for the auto iris control is displayed in the viewfinder screen.

90%

Fig. 1-11-2

(2) Details of correctable white blemishes

䡲 White blemishes at luminance levels of 30 mV or more

can be corrected. The total number of white blemishes that can be corrected is up to 7 for the R, G and B signals.

䡲 Even when there are 2 white blemishes on a single scan-

ning line, both of them can be corrected. (However, when they are adjacent, the results of a correction appear inferior to those of the results of the correction of a single white blemish. These results are due to the correction characteristics themselves.)

WHITE CLIP

The white clip level of the through-camera composite output signal that is output at TEST OUT can be selected from the following 2 values:

100% or 108% (shipment setting)

Fig. 1-11-3

1.11.5 List of Servicing Switches (Camera)

The following table that shows the switches described above is for use in servicing. Use this table as a reference in servicing.

Switch Operation Result

[AUTO WHITE] + [POWER] ON Service menu display

[SHUTTER] + [POWER] ON System reset

[STATUS] + [SHUTTER] + [POWER] ON

[ACCU FOCUS] + [POWER] ON Area gate display

DSP data reset

Table 1-11-4

1-15

1.11.6 EEPROM in Camera

IC905 on the CAM1 board is an electrically erasable/rewritable EEPROM. It stores the following data.

䡲 Camera adjustment data set in the adjustment mode. 䡲 Settings in [CAMERA MENU]. 䡲 White blemish position coordinate data for use in white blem-

ish correction.

䡲 Auto white balance control data (A/B). 䡲 Camera status at the last power OFF (positions of non-lock

type switches, etc.).

Therefore, when retention of the above data becomes impossible due to a failure in the EEPROM or over the 1 million times of rewrite count, the EEPROM should be replaced with a new one and the data should then be re-set in it.

1.11.7 Tripod base

See the KA-510U servide manual NO. 60065 for servicing. The tripod is not exactly same as KA-510U. See note for the difference.

Note

These 1/4 and 3/8 inch fixing tripod holes are not povided for the KA-510U.

1.12 CHANGING THE COLOR MATRIX SETTING

NOTE

The color reproduction properties of the color-matrix circuit built into the DSP can be re-set by varying the values of 9 parameters. However, as these parameters have been set at the factory to the default values based on detailed studies of the product development process, it is usually not recommended to alter them. Note that this adjustment is not a normal electrical adjustment item. Should a re-adjustment of the color matrix (a color reproducibility change) be required as a result of a user request, etc., this should be performed only after studying and understanding the details of the following instructions.

1.12.1 Setting the Color Matrix

Preparation

The color matrix setting requires a color chart for use as a reference for color reproduction and a vectorscope. As we do not specify a color chart for this purpose, discuss the matter with any user requesting a custom setting and use a color chart to be agreed by the user.

Adjustment

The color-matrix circuit can be set using menus displayed on the screen (the viewfinder-screen or the test out screen).

Front

Accessory

KA-510U

2–3/8"

Not provided

4–3/8"4–1/4"

2–1/4"

Not provided

Rear

MODE : M3 M2 M1 DATA R (R-G) : R (R-B) : G+(G-R) : X G–(G-R) : X G+(G-B) : X G–(G-B) : X B+(B-G) : X B–(B-G) : X B (B-R) :

Fig. 1-12-1

Use the following procedure. (1) Remove the right side cover (see section 1.3.1) (2) Set DIP switch S901-6 on the ROM board to ON to display

the color-matrix setting menu on both the viewfinder and testout screens.

(3) Move the cursor (mark of “

”) to the desired item by using

the [SHUTTER] dial.

(4) When the cursor set on the desired item, pushing the [SHUT-

TER] dial causes the selected item to blink. (This is the status of the value adjustment.)

(5) When the adjustment value is blinking, rotating the [SHUT-

TER] dial varies the adjustment value. The available adjustment values are “M3”, “M2”, “M1” which is 0 or 1, and “DATA” which is between 0 and 31.

1-16

M3 0 : Active 1 : Inactive

M2 0 : Active 1 : Inactive

M1 0 : Increase 1 : Decrease

DATA 0 – 31

MODE

R±(R-G)

R±(R-B)

G+(G-R)

G–(G-R)

G+(G-B)

G–(G-B)

B+(B-G)

B–(B-G)

B±(B-R)

0 or 1

Active Area

Graph display

(6) Set DIP switch S901-6 on the ROM board to OFF. The color-

Inactive area:

Represents a vector area that is not affected by a currently selected setting item.

M1 = 0: Increasing trend M1 = 1: Decreasing trend

Color signal increase/decrease trend:

The increase or decrease trend can be selected with M1.

Active area:

Represents the vector area that is affected by a currently selected setting item. (The area can be selected with M3 or M2 depending on the item.)

matrix setting menu is canceled and the normal screen appears again.

NOTE

The settings are stored and reflected every time a value in an item is changed. The setting values marked “X” do not need to be changed.

1.12.2 Details of Setting Items

As described above, the color matrix setting consists of varying 12 items using 9 parameters. The following table shows a comparison of the setting items.

NOTE

The model diagrams in the table may be interpreted as follows.

NOTE

If the [STATUS] switch is pressed during the value of some adjustment item is blinking, all of the data being set is reset to the default values.

(Example)

This diagram represents the display area of the vectorscope.

Table 1-12-1

1-17

1.13 SERVICE MENU

1.13.1 Operation Method

When the [MENU] button is pressed, the setup menu appears on the viewfinder screen to allow the user to perform setups. (For the contents of the setup menu, refer to page 66 of the instruction manual). Then, with the setup menu displayed, press the [MENU] button while holding down the [LOG] button to display the service menu. To change a menu setting value, press the [DATA SET] button. The viewfinder screen and counter display show the blinking “DATA SET” indicators and the set returns to normal mode. To return to the setup menu, turn the power off and then on again.

1.13.2 Configuration of the Service Menu (Displayed on the Viewfinder Screen)

GROUP

↓

→

SERVO/SYSTE

000

↓

100 :VIDEO

↓

20 0 : AUDI O

↓

300 :SYSTE

↓ ↓ ↓ ↓ ↓ ↓ ↓

→

↓

400 :TI 500 :ONSCREEN 700 :DI P S HM: HOURMETER RV :ROMVERSI ON

ERROR HI STORY

EH OT:OTHERS

GROUP

E CODE

HOUR METER

SERECT

Initial display of the service menu. Select an item with the [GROUP] button and press the [SELECT] button to go to a lower hierarchical level.

ITEM

( HOURMETER)

↓

DH : DRU

TH : TOTAL DR

PH : PO

CH : CAP HOUR

LD : LOADI NG T I

EJ : EJECT T I

HC : HEAD CREANI NG T I

FR : F

HOURMETER

ER HOURMETER

( HOURMETER)

D/REV T IMES

HOURMETER

ETER

000000H

000000

Hour meter data can be checked. See section 1.13.4.

ROM VERSION

SERECT

ERROR HISTORY

SERECT

OTHERS

SERECT

(RO

VERSI ON)

SY : SYSCON RO

LT :LCD/TC RO

US : UNI T SY S RO

:UNITMSD ROMVER.

ITEM

→

←

(ERROR HISTORY)

↓

1:ERR7101

CAP

↓

2:ERR7101

↓

3:ERR7101

↓

4:ERR7101

↓

MS:MEM

↓

ML:MEM

↓

M I:MEM

↓

EC : ERROR HI S TORY CL EAR

↓

LCD:LCD/KEY T EST

↓

DHC : DRU

↓

CHC: CAP H.M. C LEAR

↓

LTC:LOADING TIMES CLEAR

↓

ETC: EJECT T IMES CL EAR

↓

HTC :H . CLEAN TIMES CLEAR

FTC:F

OTOR FA I L URE

CAP

OTOR FA I L URE

CAP

OTOR FA I L URE

CAP

OTOR FA I L URE

(OTHERS)

ORY SWSAVE

ORY SWLOAD

ORY SWINITIALIZE

(OTHERS)

MH.M

(OTHERS)

D/REV T IMES C LEAR

VER.

.CLEAR

ROM version data can be checked. See section 1.13.5 .

Error history of the 4 most recent errors can be checked. Pressing the [SELECT] switch in this screen displays the mechanism information of each error.

(MECHANI SMSWINFO.)

SELECT

(

ODE) REC

→

REC PAUSE (EDCD) HLH ( HOUS ) O F F ( CASS ) ON (SAFE ) OF F (BGIN)OFF (END)ON

(RE

) OOHOOM

(P.T

) OOOOOOH

(TEMP) 60~

See sections 1.13.5 and 1.13.6.

The set-up menu contents can be saved, loaded or initialized

OFF

and the hour meter data can be reset.

OFF

See section 1.13.8. After switching an item from OFF to ON using [SELECT],

OFF

execute the selected item by pressing [DATA SET]. It is not

OFF

possible to execute more than one item simultaneously.

OFF

When an item is switched ON, other items are switched OFF.

OFF

1-18

1.13.3 Contents of Service Menu

Group Item Settings Counter Display

000 SERVO/ SYSTEM

002: OPERATION LOCK

050: REMOTE SELECT

OFF

LOCAL

002 01

RSL Lc

IEEE1394

RS232C

080: BATTERY SHUTDOWN V

10.5 – 11.0V

BE 105

(0.1V step)

081: BATTERY ALARM V

082: BACK TALLY MODE

10.5 – 12.0 V (0.1V step)

BLINK

BA 110

RT D BL

OFF

083: FRONT TALLY MODE

BLINK

083 03

100 VIDEO

125: SET UP (Only U-ver.)

126: INPUT SELECT

OFF

CAMERA

125 00

VD c

IEEE1394

200 AUDIO

244: LOW CUT

OFF CH1

LcTF OF

CH2

245: SAMPLING RATE

CH1&CH2

32K

SPL 48

48K

246: FRONT VOLUME ENABLE

DISABLE

FRVL OF

ENABLE

300 SYSTEM

303: WARNING DISABLE

305: REC REPEAT

ENABLE

DISABLE

OFF

303 00

305 00

306: LONG PAUSE DISABLE

ENABLE

306 00

DISABLE

307: LONG PAUSE TIME

3MIN

LGPT 03

30MIN

396: BATTERY TYPE

12V

BATT 12

13.2V

14.4V

398: SSF MODE

OFF

55F OF

CUE MODE

MARK MODE

400 TIME CODE

500 ON SCREEN

406: USERS BIT GROUP

416: NON DROP/DROP (Only U-ver.)

515: CALENDAR SELECT

516: DISPLAY SELECT

NOT SPECIFIED

ISO CHAR

UNASSIGNED1

UNASSIGNED2

DROP

NON DROP

JAPAN

USA

EUROPE

40B 00

TcG DF

515 00

DSP Tc

CLOCK

OFF

01 02 ON

13 14

01 02 03

01 02

U R

Factory Default

OFF

LOCAL

10.5V

11.0V

BLINK

CAMERA

OFF

48K

ENABLE

OFF

ENABLE

30MIN

12V

CUE MODE

NOT

SPECIFIED

DROP

U-ver: USA

E-ver: EUROPE

Description

Operation lock setting.

User setup menu (Refer to page 68 of the instruction manual.)

Battery empty detection voltage setting.

Battery alarm detection voltage setting.

User setup menu (Refer to page 68 of the instruction manual.)

Select the front tarry BLINK: Blinking ON: Lighting Select the setup of MONITOR OUT in playback mode.

ON: Setup added. OFF: No setup. Input signal selection

User setup menu (Only U-ver.) (Refer to page 68 of the instruction manual.)

User setup menu (Refer to page 68 of the instruction manual.)

User setup menu (Refer to page 68 of the instruction manual.) User setup menu (Refer to page 68 of the instruction manual.) ENABLE: Warning enabled. DISABLE: Warning disabled. OFF: REC Full Repeat enabled. ON: REC Full Repeat disabled. ENABLE: Long pause is canceled after specified period of time (set using Menu 307). DISABLE: Long pause is not canceled. User setup menu (Refer to page 68 of the instruction manual.) User setup menu (Refer to page 68 of the instruction manual.)

User setup menu (Refer to page 68 of the instruction manual.)

User bit’s binary group flag setting

User setup menu (Refer to page 68 of the instruction manual.)

Calendar display format selection. JAPAN: Year/Month/Day USA: Month/Day/Year EUROPE: Day/Month/Year User setup menu (Refer to page 68 of the instruction manual.)

1-19

Group Item Settings Counter Display

Factory Default

Description

700 DIP SW

Operations are not accepted when the cassette cover is open. Therefore, DIP switch-0 and -1 can be used in checking the operation when the side cover is open or in the compatibility adjustment.

700: DIP SWITCH-0

701: DIP SWITCH-1

702: DIP SWITCH-2

to to

715: DIP SWITCH-15

OFF

700 00

701 00

702 00

715 00

OFF

All OFF

Operate LED display switching OFF: Blinks in amber when the cassette

cover is opened.

ON: Extinguished when the cassette

cover is opened.

OFF: Other operations than ejection are

inhibited when the cassette cover is opened.

ON: Operations are valid even when the

cassette cover is opened.

Switching inhibited. Must be set to OFF.

1.13.4 HOUR METER

This screen allows the data of hour meters to be checked.

Item

DRUM HOUR METER

TOTAL DRM HOUR METER

Counter Display

DH∗∗∗∗∗∗ TH∗∗∗∗∗∗

Description

Displays the drum rotation hours.

Displays the total drum rotation hours. This data can-

Max. Display Hours/Count

999999H

not be reset.

POWER HOUR METER

PH∗∗∗∗∗∗

Displays the power ON hours. This data cannot be re-

999999H

set.

CAP HOUR METER

LOADING TIMES

EJECT TIMES

HEAD CLEANING TIMES

FWD/REV TIMES

cH∗∗∗∗∗∗ LH∗∗∗∗∗∗ EJ∗∗∗∗∗∗ Hc∗∗∗∗∗∗ FR∗∗∗∗∗∗

Displays the capstan motor rotation hours.

Displays the loading count.

Display the ejection count.

Displays the active cleaning head operation count.

Displays the forward or reverse operation count

999999H

999999TIMES

∗∗∗∗∗∗ are the figures of time (or count).

1.13.5 ROM VERSION

This screen allows the ROM versions to be checked.

Item

SYSCON ROM VER. Video/Sys-con board IC403 PLSL1063-V1-**

LCD/TC ROM VER. Audio/LCD board IC601 UPD78P058BT***

UNIT SYS ROM VER. DV MAIN board IC101 MN102F1617HL-**

UNIT MSD ROM VER. DV MAIN board IC401 M31020EAVP-***

Counter Display

SY ∗∗ LT ∗∗ US ∗∗

U ∗∗

Board Name Symbol No. Remark

ROM board IC1 M27W102-80N6-**

(The MSD CPU program is written in IC401 and ROM board IC1.)

(The ROM version No. of PAL begins with “80”.)

∗∗ is the version number.

1-20

1.13.6 ERROR HISTORY

This screen allows the history of the 4 most recent errors to be checked.

Error code

( ER ROR H I ST ORY )

Latest warning

Warning before the latest

Warning before the above

1: ERR7101

CAP

2: ERR7101

CAP

3: ERR7101

CAP

4: ERR7101

CAP

OTOR FA I L URE

Warning before the above

1.13.7 MECHANISM SW INFO

This screen allows the mechanism mode at each error to be displayed.

Error message

(MECHANISMSWINFO. )

(MODE ) R E C

→

(EDCD) HLH ( HOUS ) O F F ( CA SS ) ON ( SAFE) OF F (BGIN)OFF (END)ON (RE (P.T (TEMP) HIGH

REC PAUSE

) OOHOOM

) OOOOOOH

Display

Item

(MODE)

(ECOD)

(HOUS)

(CASS)

(SAFE)

(BGIN)

(END)

Description

Mode at the moment of VCR error & mode immediately before.

Rotary encoder output.

Cassette housing switch status.

Cassette switch status.

REC safety switch status.

Tape begin sensor status.

Tape end sensor status.

Input Pin

—

DV MAIN board IC401 Pin 44 → CAM0 Pin 45 → CAM1 Pin 46 → CAM2

DV MAIN board IC401 pin 27

DV MAIN board IC401 pin 32

DV MAIN board IC401 pin 47

DV MAIN board IC401 pin 126

DV MAIN board IC401 pin 125

Display

PLAY, STILL, REC, REC PAUSE, NO CASSETTE, EJECT, STNDBY-ON, FF, REW, SHTL, STILL, SHTL X10, SHTL X-10

Shows H or L according to the mechanism position. Rotary encoder terminal (ENCD) H L H

CAM0 CAM1 CAM2

ON : Housing inserted/ejected status OFF : Housing operating status

ON : Cassette tape inserted OFF : Cassette tape not inserted or during insertion /ejec-

tion

ON : Non-recordable tape inserted, cassette tape not in-

serted or during insertion /ejection

OFF : Recordable tape inserted

ON : Tape leader section detected OFF : Magnetic tape section detected

(REM)

(P.TM)

(TEMP)

Remaining tape at the moment of error.

POWER HOUR METER data at the moment of error.

Set’s internal temperature at the moment of error

—

DV MAIN board IC101 pin 75

Remaining tape time

POWER HOUR METER time

UNDER : under 10°C NORMAL : 10 to 40°C HIGH : 40 to 60°C OVER : over 60°C

1-21

1.13.8 OTHERS

This screen allows the setup menu to be saved temporarily, loaded or initialized. To execute an item, switch it from “OFF” (displayed as “00”) to “ON” (displayed as “01”) with the [SELECT] button, then press the [DATA SET] button (excluding hour meter). As switching an item “ON” switches other items automatically “OFF”, it is not possible to execute more than one item simultaneously.

Item

MEMORY SW SAVE

MEMORY SW LOAD

MEMORY SW INITIALIZE

ERROR HISTORY CLEAR

LCD/KEY TEST

DRUM H.M. CLEAR

CAP H.M. CLEAR

LOADING TIMES CLEAR

EJECT TIMES CLEAR

H. CLEAN TIMES CLEAR

FWD/REV TIMES CLEAR

Counter Display

S00

L00

Ec 00

LcD 00

DHc 00

cHc 00

L7c 00

E7c 00

H7c 00

F7c 00

1.14 ALARM DETECTION METHODS

Factory Default

OFF

Description

Saves the data set with the setup menu.

Loads the data set for the setup menu.

Initializes the setup menu data to the factory defaults.

Clears the error history.

Checks the lighting of operation key LEDs. After changing the setting to “START”, press the [DATA SET] but- ton. The viewfinder screen and LCD display show “PERFORM” and the key test mode is set. In this mode pressing an operation key, lights the corresponding LED but does not cause the VCR to operate. To exit from the key test mode, change the setting to “STOP” and press the [DATA SET] button. The viewfinder screen and LCD shows “PERFORM” and the normal mode is reset.

Resets the drum hour meter.

Resets the capstan hour meter.

Resets the loading count.

Resets the ejection count.

Resets the head cleaning count.

Resets the forward/reverse operation count

The unit incorporates the alarm display function, which notifies the user of the VCR status, remaining tape and remaining battery power. For the contents of the alarm display, see page 86 of the instruction manual. This section describes the methods applied for alarm detection.

Item

Servo lock error “SERVO” (Counter display)

Head clog “RF” (Counter display)

Dew condensation

When the drum rotation phase is deviated by more than 10 or when the capstan motor rotation speed is deviated by more than 20%.The alarm sound is generated in REC mode. The alarm display only appears in the PLAY mode. When external sync input signal SYNC IN is disturbed,

“

” (sync inhbit) is displayed.

Measures the error rate during playback or quick review with RET button and displays “HEAD CLOG” when the viterbi is ON and exceeds 2000 (total).

When dew warning occurs with the VCR.

Description

Status After Detection

Same mode is maintained.

Detection Method

The MSD microcomputer detects the drum rotation phase from the phase error between the TSR and HID signals. The capstan motor rotation speed is detected based on the CAP FG signal.

Same mode is maintained.

—

See error code “0201 DEW” in 1.16.

“DEW”

Lithium battery exhaustion “Li”

When the built-in lithium battery for the timecode backup is exhausted or not installed.

Same mode is maintained.

Decrease in the battery voltage below 2.6 V.

Remaining battery

When the remaining battery power is low.

• Battery nearly empty: Operation is maintained.

Detects the voltage at system controller pin 62.

• Battery empty: Operation stops automatically.

1-22

1.15 BATTERY POWER DETECTION METHODS

1.16 WARNING CODES

The battery voltage is detected to display the remaining power on the LCD. Since the detection voltage is variable depending on the 12 V/13.2 V/14.4 V battery types, correct settings should be made with the setup menu.

Detection voltage and remaining battery display

12V

Battery Type

13.2V

3.9V –

13.2V – 13.8V

13.0V – 13.1V

12.8V – 12.9V

12.4V – 12.7V

12.3V

11.6V – 12.2V

10.6V – 11.5V

– 10.5V

14.4V

15.1V –

14.4V – 15.0V

14.2V – 14.3V

13.9V – 14.1V

13.6V – 13.8V

13.4V – 13.5V

12.6V – 13.3V

10.6V – 12.5V

– 10.5V

EFBATT

Display

(“F” off)

(“F” off, “BATT” blinking) (Segment blinking)

(“F” off, “BATT” blinking) (Segments off)

12.6V –

12.0V – 12.5V

11.8V – 11.9V

11.6V – 11.7V

11.3V – 11.5V

11.2V

11.0V – 11.1V

10.6V – 10.9V

– 10.5V

If a problem occurs during operation, the unit diagnoses the cause by itself, provides a warning through the “warning LED” and “buzzer”, and displays the diagnosis results in the counter display.

[LCD counter]

Error display appears. (∗∗∗∗ is the error code.)

ERR-∗∗∗∗

[Warning LED]

The red LED blinks (at about 4 Hz).

[Buzzer]

Generates a continuous tone. However, the tone is intermittent (at about 4 Hz) in case of dew alarm.

0201 Condensation

•VCR operation In save mode:

· If a cassette is loaded, enters the AUTO OFF mode.

· If a cassette is not loaded, the warning LED lights

and the SAVE mode is maintained.

In other modes:

· If a cassette is loaded, the AUTO OFF mode is ini-

tiated.

· If a cassette is not loaded, the warning LED lights

and the drum rotates. An operation is accepted after any condensation has evaporated.

•Cause : Condensation of moisture.

•Detection method : Check the voltage at the pin 124 of

IC401. DEW ON : 2.4 V or more DEW OFF : 1.8 V or less

0601 WRONG CASSETTE TYPE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : A wrong type of cassette for the

computer is inserted.

•Detection method : An error in the cassette type is detected (at pins 117, 118 and 119 of IC401) after the insertion is completed.

3200 LOADING INCOMPLETE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the loading motor,

rotary encoder or mechanism.

•Detection method : The rotary encoder output is checked (at pins 44, 45 and 46 of IC401) and an error is detected when loading has not completed in 4 seconds.

1-23

3300 UNLOADING INCOMPLETE

•VCR operation : After the first unloading error, the cassette is loaded temporarily, then unloading is retried. If the retry fails again, the AUTO OFF mode is initiated.

•Cause : Malfunction of the loading motor, rotary encoder or mechanism.

•Detection method : The rotary encoder output is checked (at pins 44, 45 and 46 of IC401) and an error is detected when unloading has not completed in 4 seconds.

4000 INTAKE INCOMPLETE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the cassette hous-

ing switch or cassette housing motor.

•Detection method : When completion of insertion is not detected (at pin 27 of IC401) within 3 seconds after the start.

5607 TU/SUP REEL STOPPED DUE TO A CUT TAPE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Tape is cut due to abnormal tension

or a mechanism defect or because the cassette was inserted while the tape was slack.

•Detection method : When the FGs from the SUP and TU reels were not detected at all (at pins 59 and 60 of IC401) during loading.

5702 TAPE END DETECTED AFTER SHORT REW

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Tape is cut after the end of the tape

has been detected. The mode transition of the mechanism failed.

•Detection method : When the tape end sensor output (at pin 125 of IC401) remains Low even after 3 seconds have elapsed since the start of the short REW operation following the tape end detection in play mode, etc.

4100 EJECTION INCOMPLETE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the cassette hous-

ing switch or cassette housing motor.

•Detection method : When completion of ejection is not detected (at pin 27 of IC401) within 3 seconds after the start.

5605 TAPE BEGIN/END DETECTED SIMULTANEOUSLY

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Tape is cut due to abnormal tension

or a mechanism defect or because the cassette was inserted while the tape was slack.

•Detection method : When both the tape begin sensor (at pin 126 of IC401) and the tape end sensor (at pin 125 of IC401) output Low level together when a cassette is loaded.

5606 SP REEL RUNAWAY DURING UNLOADING

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Tape is cut due to abnormal tension

or a mechanism defect or because the cassette was inserted while the tape was slack.

•Detection method : When the detected TU reel rotation count (at pin 59 of IC401) exceeds 30 revs. per sec. (1200 pulses) during unloading.

5802 TAPE BEGIN DETECTED AFTER SHORT FF

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Tape is cut after the end of the tape

has been detected. The mode transition of the mechanism failed.

•Detection method : When the tape begin sensor output (at pin 126 of IC401) remains Low even after 3 seconds have elapsed since the start of the short FF operation following the tape beginning detection in the reverse search mode, etc.

7001 DRUM MOTOR ROTATION ERROR

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the drum motor,

MDA circuit or FG detector circuit.

•Detection method : When the drum FG has not been detected (at pin 54 of IC401) for more than 4 seconds in the drum driving mode.

7101 CAPSTAN MOTOR ROTATION ERROR

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the capstan motor,

MDA circuit or FG detector circuit.

•Detection method : When the drum FG has not been detected (at pin 55 of IC401) for more than 2 seconds in the capstan driving mode.

1-24

7202 SUP TAPE SLACK DURING CAPSTAN DRIVE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : The timing belt is cut or one of the

reel control parts in the mechanism is malfunctioning.

•Detection method : When the SUP reel FG has not been detected (at pin 60 of IC401) during 5 rotations of the capstan in the capstan driving mode.

7302 TU TAPE SLACK DURING CAPSTAN DRIVE

•VCR operation : The AUTO OFF mode is initiated.

•Cause : The timing belt is cut or one of the

reel control parts in the mechanism is malfunctioning.

•Detection method : When the TU reel FG has not been detected (at pin 59 of IC401) during 5 rotations of the capstan in the capstan driving mode.

7305 NO TU REEL ROTATION DURING UNLOADING

•VCR operation : The AUTO OFF mode is initiated.

•Cause : Malfunction of the cassette hous-

ing switch or cassette housing motor.

•Detection method : When the TU reel rotation detected (at pin 59 of IC401) during unloading is less than 1/2 turn.

1-25

1.17 ANALYSIS OF BLOCK NOISE (SYMPTOMS: POOR VIDEO, ABSCNCE OF AUDIO)

1.17.1 Analysis Flow Chart

In case of trouble, perform troubleshooting using the following flow chart.

Start

Play cleaning tape.

Play the recorded

tape to measure error rate.

Is the error rate less than 500

(one channel) and less than 1000(total)

when the viterbi is on?

Check RF envelope.

•Is waveform flat?

•Are SUP and TU pulses

continuous?

Dirt deposited on the head.

Played tape defect.

The dirt deposited on the drum.

↓

Clean the drum.

2.12.5 Compatibility Adjustment.

Play cleaning tape.

Play the recorded

tape to measure error rate.

Is the error rate less than 500

(one channel) and less than 1000 (total)

when the viterbi is on?

Ye s

Play moving image.

Is monitored video OK?

Ye s

End

Drum or PB CD defect.

Digital processing circuitry (DV Main) defect.

1-26

1.17.2 RF Envelope Check

Symptom Observed on Monitor Screen

Block noise on left SUP dropout • No audio output.

Block noise on right TU dropout • Timecode not counted.

One CH frozen No video output from one CH • Audio is output.

RF envelope Audio, etc. Possible Causes

• Intermittent audio.

• Supply guide roller adjustment

failure.

• Dirt on supply side of drum.

• Take-up guide roller

adjustment failure.

• Dirt on take-up side of drum.

• Dirt attached on one CH of

head.

• Drum assembly defective.

• PR & MDA board IC901

defective.

Frozen Low level

• No audio output.

• Dirt attached on head.

• Drum assembly defective.

The RF envelope condition can be confirmed to a certain degree in the Error Rate adjustment display.

RF envelope condition

1-27

2.1 BERORE ADJUSTMENTS

SECTION 2

MECHANICAL ADJUSTMENTS

2.1.1 Precautions

1) Be sure to apply a screw securing torque when attaching a part. The securing torque should be 0.04 N-m (0.4 kgf-cm) unless otherwise specified.

2) Always unplug the power cord of the set before attaching, removing or soldering a part.

3) When unplugging a connector, do not pull the wire but grasp the connector body.

4) Do not make an adjustment or rotate a potentiometer blindly while the source of trouble is not identified.

5) Before adjusting electrical circuitry, be sure to wait for more than 10 minutes after turning the power on.

2.1.3 Equioment required for adjustments

DV 12 V power supply(AA-G10/AA-P250)

Output capability of 3 A or more.

Alignment tape

MC-1 (NTSC) MC-2 (PAL)

2.1.2 Measuring instruments required for adjustments

Instrument

Oscilloscope

Calibrated instrument with measuring

Condition

bandwidth of 100 MHz or more.

Personal computer

Microsoft Windows 95 environment, Pentium 133 MHz or better, Memory 16 MB or more.

Table 2-1-1

Slit washer attaching tool

YTU94121A

Connector cable

PTU94018A

DV tape

For use in self-recording/playback. (60 ME)

Cassette torque meter

4 10

YTU94150A

Guide screwdriver

YTU94085

Torque screwdriver

YTU94088 YTU94088-003

Replaceable bit (long type)

PC cable

QAM0099-001

Adjustment software

PLSC1304

Chip IC replacement tool

PTS40844-2

2-1

2-2

Table 2-1-2

2.2

BASICS OF MECHANISM DISASSAMBLY/ASSEMBLY

2.2.1 Assembly mode

The disassembly and assembly of the mechanism can be done in the ASSEMBLY mode (see Table 2-2-1). The ASSEMBLY mode is provided in the intermediate position between C-IN and S.FF. As the C-IN (Cassette IN) mode is usually set when a cassette tape is ejected, the ASSEMBLY mode should be entered after entering the C-IN mode. To set the AS-

SEMBLY mode, apply 3 V DC to the electrodes at the top of the loading motor shown in Fig. 2-2-1. The ASSEMBLY mode is set when the markings (red) on two gear teeth of the rotary encoder are aligned with the confirmation holes.

MODE

PARTS

ROTARY ENCORDER

R. ENC -20

MAIN CAM GEAR 0

The ASSEMBLY mode is set

Note:

36°

according to the markings (colored red) on two gear teeth of the rotary encoder.

C-IN

ASSEMBLY

17°

Wire (Brown)

S. FF

30.33°

33.33

36.33°

87°

Table 2-2-1

Motor bracket assembly (Loading motor)

LOADING END

169.66°

166.66

140

PLAY REV STOP FF/REW

270.33°

276.33°

223.66°

226.66

185

229.66°

303.66°

273.33

220

306.66

245

190.33°

193.33

160

196.33°

Marking

Wire (Red)

(colored red)

Rotary encoder

< ASSEMBLY MODE >

Back side of Mechanism assembly

Fig. 2-2-1

2-2

2-3

2.2.2 Mechanism modes

The mechanism has 6 modes as shown in Table 2-3-1. The current mode can be confirmed by observing the markings on the sub-cam gear and the 8 mark on the main deck at the back side of mechanism assembly. See Figs. 2-2-2 to -7.

1. Mechanism mode confimation

<C-IN : C >

C H P

<S-FF : H > <PLAY : P >

Fig. 2-2-2 Fig. 2-2-3 Fig. 2-2-4

R S F

Fig. 2-2-5 Fig. 2-2-6 Fig. 2-2-7

2-3

2-4

2.3 MECHANISM TIMIN CHART

See following table (Table 2-3-1).

MODE

PARTS

36°

ROTARY ENCORDER

ROTARY ENCODER

MAIN CAM GEAR 0

SUB CAM GEAR

POLE BASE

CTL PLATE

FF/REW

MAIN BRAKET(SUP)

MAIN BRAKET(TU)

SUB BRAKE

ON(REV MODE PRESS UP)

ON(PLAY MODE)

PINCH ROLLER

EXIT GUIDE ARM

HALF LOADING

TENSHION ARM

BAND ARM PLATE

CLUTCH LOCK

SUP CENTRRING

OFF

S/REV

PLAY

ON 1

ON 2

OFF

ON 1

ON 2

OFF

ASSY

OFF

OFF 1

OFF 2

OFF

OFF 1

OFF 2

ASSEMBLY

C-IN

17°

-20

S. FF

30.33°

33.33

4015

36.33°

87°

LOADING END

169.66°

166.66

140

PLAY REV STOP FF/REW

270.33°

276.33°

223.66°

226.66

185

229.66°

303.66°

273.33

220

306.66

245

190.33°

193.33

160

196.33°

CENTERRING. ARM

S/REV

Table 2-3-1

2-4

2-5

2.4 MAINTENANCE AND INSPECTION OF MAJOR PARTS

Periodical inspection and maintenance are requisite to maintain the initial performance and reliability of the product. Table 2-4-1 (Maintenance & Inspection List) has been compiled assuming standard operating conditions, and the specifications in the table are greatly variable depending on the actual operating environment and conditions. Remember that, if the maintenance and inspection are not enforced properly, the operating hours of

2.4.1 Layout of Major Parts

To attach the Active Head Cleaner Assembly, refer to "1.7.2. Disassembling the Rear Part of the Unit".

Cleaner bracket ass'y

the product will not only reduce considerably but other unfavorable influences may produce. Rubber parts may deform or degrade after long period of storage even if they are not used in this period. The service life of the drum is variable depending on the tape used and operating environment.

Active head cleaner assembly

2 19 42 1 18 41 3

2-5

2-6

17 12 36 20 444 32

33 24 1328

2.4.2 Maintenance and insoection list

1) The 6000 H maintenance consists of a replacement of the entire mechanism assembly.

2) When mounting the capstan motor on the main deck, control of the verticality is required. Therefore, when the capstan motor reaches the end of its service life, the entire mechanism assembly should be replaced.

Part Name Ref.

Tape transport parts

1 2

ENT. guide base assembly

⁄

Tension arm sub-assembly

Guide rail (S) assembly

(

Guide rail (T) assembly

Middle catcher assembly

Capstan shaft

Pin roller arm assembly

Exit guide arm assembly

10 11 12 13 14 15

16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

Drum assembly

Capstan motor

Reel drive pulley assembly

ﬁ

Center gear assembly

›

Timing belt

‹

Clutch lock gear (1)

Clutch lock gear (2)

‡

Sub-brake assembly

Main brake (S) assembly

Main brake (T) assembly

15Reel disk assemblies

Band arm plate assembly

Swing arm assembly

Worm wheel 2

Motor bracket assembly

Rotary encoder assembly

Centering arm assembly

Min cam

∞

Sub cam

•

Cleaner assembly

Cassette guide pin

Cassette guide

MIC contact

Mechanism assembly (including cassette housing assembly)

Symbol

No.

M643 M640 M622 M623 M624 M6 4 M644 M643 M650 M6 4 M633 M634 M611 M612 M614 M636 M638 M637 M639 M641 M642 M6 3 M620 M621 M626 M6 8 M6 9 M529 M635 M635 M635 M6 1

500

        

  



 

    

      





 

1000

     

  



 > >

 >













Operating Hours (DRUM Hour Meter)

1500

              

                

2000

         

 > >



>

  

>

           



2500

              

                

3000

     

  



 > >

 >













3500

          



 



    

      





 

4000

         

 > >

 >





 >







4500

              

                

5000

     

  



 > >

 >













5500

              

                

6000

         

    

           

   



2.7.14

2.7.8

2.7.12

2.7.5

2.7.3

2.7.4

2.7.2



2.7.15

2.7.14

2.7.15

2.7.10

2.7.11

2.7.8

2.7.7

2.7.14

2.7.2

2.7.18

2.7.19

2.7.20

: Clean with ethanol. : Check and replace if required. : Replace. >: Oil the shaft.

After replacing a part, apply lubricant to the required points.

Table 2-4-1

2-6

2-7

2.4.3 Cleaning

The tape transport system should be cleaned periodically. Be sure to clean the tape transport system upon receipt of a set for servicing, etc. To clean use a good quality fine-textured cloth moistened with ethyl alcohol.

1) When the video head is stained, the playback output decreases and a read error will not be able to be corrected by the error correction. If this occurs, the video will be interfered by block noise, the audio will not be output, and the video output will eventually be lost when the video head becomes extremely dirty. To clean the drum, while applying cleaning cloth (service part No. : KSMM-01) or high quality paper gently to the upper drum, rotate the upper drum in the normal (counterclockwise) rotation direction. The dirt deposited on the video head can be removed by playing a cleaning tape.

CAUTION

Do not move the cleaning paper while applying it to the video head. Otherwise, the video head may be damaged.

2) The lower drum tends to attract dirt on the leader section and the linearity cannot be guaranteed when the lower drum becomes extremely dirty. Particularly, the tape inlet and output sections gather dirt easily, causing symptoms such as dropout of the reproduced FM signal, deterioration of video quality and lack of audio output. In order to clean the leader section, rub a a cotton swab gently along its edge.

2.4.4 Oiling and Greasing

Table 2-4-2 shows the oil and greases used with the set.

Classification

Oil

Grease

1) Oiling should be performed periodically. Oil the shafts by referring to the maintenance table.

2) After replacing a part, grease the required points. For the parts to be greased see the exploded diagram in chapter 5, “DISASSEMBLY DRAWINGS AND PARTS LIST”.

3) As Hanal separates over time, be sure to mix it (shake) well before use.

4) Take care not to leave grease or oil on the tape transport parts which come into contact with the tape or on the brake pads.

5) Take care not to apply too much oil or grease. The standard oiling quantity is one drop and the standard greasing quantity is the quantity with which the grease does not overflow.

Name

Cosmo Hydro HV100

Maltemp SH-P

Hanal

Table 2-4-2

Part No.

YTU94027

KYODO-SH-P

RX-410R

3) Stain of the tape transport system leads to tape damage. When magnetic powder or dirt penetrates inside the rollers, a rotation malfunction may affect the video. Clean the tape transport parts carefully using a cleaning cloth or cotton swab moistened with ethyl alcohol.

2-7

2-8

2.5 PERIODICAL MAINTENANCE

Perform maintenance at the correct times in accordance with the maintenance table. Fig. 2-5-1 shows the flow chart of periodical maintenance procedures at different operating hours.

6000-hour maintenance2000-hour maintenance1000-hour maintenance

StartStartStart

Replaced parts

Center gear assembly

›

Timing belt

‹

Swing arm assembly

Cleaner assembly

2.12 Compatibility adjustment

3.7.7 Play switching point adjustment

Confirm the 3.7.8-3 PB EQ (error rate) adjustment

End

Replaced parts

ENT. guide base assembly

⁄

Tension arm sub-assembly

Guide rail (SUP) assembly

(

Guide rail (TU) assembly

Middle catcher assembly

Pinch roller arm assembly

Exit guide arm assembly

Drum assembly

Reel drive pulley assembly

ﬁ

Center gear assembly

›

Timing belt

‹

C. lock gear (1)

C. lock gear (2)

‡

Sub-brake assembly

Main brake (TU) assembly

Reel disk assembly

Band arm plate assembly

Swing arm assembly

Worm wheel 2 assembly

Motor bracket assembly

Rotary encoder assembly

Centering arm assembly

•

Main cam

∞

Sub cam

•

Cleaner assembly

Replaced parts

Mechanism assembly

including capstan motor

and cassette housing assembly

2.12 Compatibility adjustment

3.7.7 Play switching point adjustment

3.7.8-1 REC Current Adjustment

3.7.8-3 PB EQ (error rate) adjustment

End

2.12 Compatibility adjustment

3.7.7 Play switching point adjustment

3.7.8-1 REC Current Adjustment

3.7.8-3 PB EQ (error rate) adjustment

End

Fig. 2-5-1

2-8

2-9

2.6

DISASSEMBLY/ASSEMBLY OF MECHANISM ASSEMBLY

2.6.1

Assembly/Disassembly

The following table shows the mechanism assembly/disassembly procedures.

: Names of the disassembled/assembled parts.

: Items of disassembly.

: Parts to be removed for disassembly, such as screws, wash-

ers and springs, and points.

2.6.2 Screws and Washers Used in Mechanism Assembly Disassembly/Assembly

Table 2-6-1 shows the symbols, designs, part numbers and colors of the screws and washers used with the Mechanism assembly. When disassembling or assembling the Mechanism assembly, be sure to attach the correct screws and washers by referring to the following table.

Symbol

Name or Point

Screw

Washer

Spring

Connector, lock (L), soldering (SD), shield, etc.

Part Name

Cassette housing assembly, ıMain deck assembly

Drum assembly

Motor bracket assembly

Middle catcher assembly

↑

Step

↑

Symbol

(S1)

(S2)

(S3)

Symbol

Points

2(S1), (L1) to (L5)

3(S2)

4(S2)

3(S2)

↑

Design

Design Part No.

Fig. 2-6-1

Part No.

QYSDSP2005Z

YQ43893

YQ43893-7

YQ44246

YQ44246-3

YQ43933-2

Remark

Color

Gold

Silver

Black

Color

Red

Black

2-9

2-10

2.6.3 Mechanism Assembly Disassembly Procedure Table

Part Name Item Points Remark

Cassette housing assembly 1 2 (S1), (L1) to (L5)

Drum assembly 2 3 (S2)

Motor bracket assembly 2 4 (S2)

Middle catcher assembly 5 3 (S2)

Reel cover assembly 6 (S2), 2 (L6)

Pinch roller arm assembly 3 (W1), (L7)

Sub-brake assembly 10 (P1), (W1), (L8)

Band arm plate assembly 8 (S3), (L9), (P2), (W2)

Tension arm sub-assembly

Exit guide arm assembly 4 (W1)

Swing arm assembly 7 – Position alignment

Sub-deck assembly 9 4 (S2) Position alignment

Main brake (SUP) assembly 10 (P4), (L10)

Main brake (TU) assembly 10 (P5), (L11)

Reel base assembly (SUP) 11 –

Reel base assembly (TU) 11 –

Prism 7 (S2)

Control plate 11 (2 (L12)

Guide rail (TU) assembly 12 4 (S2) Position alignment

Guide rail (SUP) assembly 12 (S2), 2 (L13) Position alignment

(

Base plate assembly 13 (S2), 2 (L14)

)

ENT. guide base assembly 14 (S2)

⁄

Worm wheel 2 14 – Phase alignment

Timing belt 14 –

‹

Center gear assembly 14 –

›

Reel drive pulley assembly 15 (W1)

ﬁ

Push plate 15 (W1)

ﬂ

Clutch lock gear (2) 15 (W3)

‡

Clutch lock gear (1) 15 (P6)

Tension control arm assembly 16 (L15) Position alignment

Brake control arm assembly 16 (W1), (L16) Position alignment

‚

Charge arm assembly 16 (L17) Position alignment

Connect gear 2 (SUP) 17 (S2) (Phase alignment)

™

Connect gear 2 (TU) 17 (S2) (Phase alignment)

Rotary encoder assembly 18 2 (S2) Phase alignment

Main cam 18 (W1) Phase alignment

∞

Arm gear 1 assembly 18 Collar Position alignment

Centering arm assembly 18 (L18) Position alignment

Sub cam 19 (S2) Phase alignment

•

Arm gear 2 assembly 19 – Position alignment

Clutch lock lever assembly 19 (L19) Position alignment

Capstan motor

Drum base deck 3 (S2)

8 (P3)

Change with mechanism assembly

Table 2-6-2

2-10

2-11

2 19 42 1 18 41 3

17 12 36 20 4 32 26

∼

33 24 1328

Fig. 2-6-1

2.6.4 Mechanism disassembly/assembly procedure chart <How to read the chart>

⋅ The following chart shows the disassembly/assembly procedures by dividing them into blocks A to I. ⋅ To remove the tension arm sub-assembly which is located in block D; start disassembly from block A. The tension arm sub-assembly

can be removed as the fourth operation after the removals of the cassette housing assembly (block A) → reel cover assembly (block B) → band arm plate assembly (block C).

⋅ The parts enclosed in thick frames are the maintenance parts listed in the maintenance table. ⋅ For details on the disassembly/assembly, see section 2.7, “Replacement of Major Parts”.

2-11

2-12

BLOCK

Motor bracket

assembly

ENT guide base

⁄

assembly

Worm wheel

Assembly Procedure

Disassembly Procedure

Rotary encoder

assembly

Drum assembly

Guide rail

(TU) assembly

Guide rail (SUP)

(

assembly

pulley assembly

Drum base

deck

Tension arm

sub-assembly

Timing belt

‹

Reel drive

ﬁ

Capstan motor

assembly

Middle catcher

assembly

Band arm

plate assembly

assembly (SUP)

Center gear

›

assembly

Reel base

Connect

gear 2 (TU)

Arm gear 1 assembly

Fig. 2-6-2

Swing arm

assembly

Prism

Tension control

arm assembly

Main cam

∞

Centering

arm assembly

Cassette

housing assembly

Reel cover

assembly

Main brake

(SUP) assembly

Sub-deck

assembly

Brake control

‚

arm assembly

Connect gear

™

2 (SUP)

Main brake

(TU) assembly

Base plate

)

assembly

Push plate

ﬂ

Clutch lock

‡

gear (2)

Clutch lock

gear (1)

Sub-brake

assembly

Reel base

assembly (TU)

Control plate

Clutch lock

lever assembly

Pinch roller

arm assembly

EXIT guide

arm assembly

Charge

arm assembly

Sub cam

•

Arm gear 2

assembly

No.

Item Reference picture/drawing Procedure

2.7 REPLACEMENT OF MAJOR PARTS

⋅ Make sure that the mechanism is in the ASSEMBLY mode before proceeding to disassembly or assembly. (See section 2.1,

“Assembly Mode”.)

⋅ Screws must always be tightened using a torque screwdriver and at the specified torque.

Cassette housing assembly

(S1)

1)Remove the 2 screws (S1) then take out the cassette housing by sliding it upward and toward the front.

(S1)

1)Reverse the removal procedure.

(L4)

(L3)

Drum assembly, 2 Motor bracket assembly

(S2)

(L1)

Fig. 2-7-1

(S2)

(L2)

(L5)

Note 1

Drum assembly

(S2)

1)Remove the 3 screws (S2) and take out the assembly.

(S2)

Motor bracket assembly

1)Remove the 4 screws and take out the motor bracket assembly.

1) Reverse the removal procedure

Fig. 2-7-2

2-12

2-13

No.

Item Reference picture/drawing Procedure

Pinch roller arm assembly

(W1)

Fig. 2-7-3

(L7)

1)Remove the washer (W1) and pull out the assembly.

1) Fit the pinch roller arm assembly (L7) of the charge arm assembly.

2) Attach the washer (W1).

into the boss

Exit guide arm assembly

1)Remove the washer (W1) and pull out the assem-

(W1)

bly.

1)Reverse the removal procedure.

2-13

2-14

Fig. 2-7-4

No.

Item Reference picture/drawing Procedure

Middle catcher assembly

(S2)

1)Remove the 3 screws (S2) and remove the assembly.

(S2)

1)Reverse the removal procedure.

Reel cover assembly

(L6)

Fig. 2-7-5

1)Remove the screw (S2).

(S2)

2)Slide the assembly toward the drum and lift the assembly up to remove it.

NOTE

⋅ After having removed the reel cover, take care

because the parts located below the reel cover tend to slip out easily.

1)Insert the reel cover into (L6) and attach by reversing the removal procedure.

Fig. 2-7-6

2-14

2-15

No.

Item Reference picture/drawing Procedure

Swing arm assembly <Removal>

1) Pull the assembly upward.

1) Reverse the removal procedure.

Fig. 2-7-7

2-15

2-16

No.

Item Reference picture/drawing Procedure

Band arm plate assembly, 8 Tension arm sub-assembly <Removal>

(S3)

(W2)

(P2)

(P3)

(L9)

Fig. 2-7-8(a)

1)Remove the washer (W2).

2)Remove the screw (S3).

3)Remove the spring (P2).

4)Remove the band arm plate assembly and tension arm sub-assembly.

NOTE

Be careful not to lose the spring (P3).

1) Attach the spring (P3) to the tension arm subassembly. Engage the longer end of spring to hook

and the shorter end to hook b as shown in Fig.

2-7-8(b).

2) Attach the tension arm sub-assembly.

3) Attach the band arm plate assembly.

4) Clamp with the screw (S3) and washer (W2).

5) Attach the spring (P2) to (L9).

NOTE

After attaching, ensure that the band arm assembly can rotate in the direction of the arrow as shown in Fig. 2-7-8(c).

Attaching the spring

Step 1

Hook (Longer end)

Step 2

Hook (Shorter end)

Step 3

Fig. 2-7-8(b)

Fig. 2-7-8(c)

6) After attaching, adjust the tension.

2-16

2-17

No.

Item Reference picture/drawing Procedure

8 <Tension arm sub-assembly position adjustment> 1) Without loading a tape, set the mechanism mode

to PLAY mode. To switch the mode, rotate worm wheel 2 while the motor bracket assembly is disengaged (see 2.2, “Mechanism Modes”).

2)Rotate the tension arm slightly clockwise to eliminate production of rattle with the band arm plate.

Position alignment point

3)Ensure that the notch on the tension arm is located within area A. (See Fig. 2-7-8(e).)

4)If the tension arm is not located in area A, loosen

Notch on tension arm

screw B (black) lightly and fine-adjust the position of the band arm plate assembly. Turn the screw counterclockwise to move the tension arm extremity toward the right or clockwise to move it toward the left.

5)After the adjustment, clamp the band holder by tightening screw B (black) (with a securing torque of 5.88 Nm, or 0.6 kgf-cm). Then adjust the ten-

Notch on tension arm

Tension arm

Turn the tension arm

in the clockwise direction.

sion arm position again.

Band arm plate

Counterclockwise

direction

Screw

B (Black)

Clockwise direction

Fig. 2-7-8(d)

Joint between the tension arm and band arm plate (must not rattle here.)

Band holder

OK (Lower limit)

OK (Center)

OK (Upper limit)

Fig. 2-7-8(e)

No Good

2-17

2-18

No.

Item Reference picture/drawing Procedure

Sub-deck assembly <Removal>

(S2)

Phase alignment

Control plate

(

L11

)

The boss should fit into the hole.

(S2)

1)Remove the 4 screws (S2) and pull out the assembly.

1)While sliding the control plate toward the left, attach the sub-deck assembly.

NOTE

⋅ Attach by aligning the phase holes of the

main deck assembly and control plate.

Fig. 2-7-9

10@ Main brake (SUP) assembly, # Main brake (TU) assembly,

Sub-brake assembly

(P4)

(

)

L10

(P5)

(W1)

(

L11

)

(L8)

2)Clamp with 4 screws (S2).

<Removal> Main brake (SUP) (TU) assembly

1)Remove the spring by disengaging its ends from the hooks (L10) (L11).

Sub-brake assembly

1)Remove the washer (W1).

2) Remove the spring by disengaging it from the hook (L8).

1)Reverse the removal procedure.

(P1)

Fig. 2-7-10

2-18

2-19

No.

Item Reference picture/drawing Procedure

Reel base (SUP) assembly, % Reel base (TU) assembly,

Control plate, ^ Prism

(

)

L12

(

)

L12

Fig. 2-7-11

1)Pull up each assembly to remove it. The control plate can be removed by sliding it toward the left as shown by the arrow.

2)Remove the screw (S2) to remove the prism.

1)Reverse the removal procedure.

Guide rail (TU) assembly, ( Guide rail (SUP) assembly

(

)

L13

(S2)

<Removal> Guide rail (TU) assembly:

1)Remove the 4 screws (S2) and remove the assembly.

Guide rail (SUP) assembly:

1)Remove the screw (S2) and remove the assembly.

1)Return the guide pole fully to the unloading position, and attach the assemblies by reversing the removal procedures. When attaching, place the alignment markings of the two gears so that they face each other. (See Fig. 2-7-12(b).)

2-19

2-20

Fig. 2-7-12(a)

Fig. 2-7-12(b)

No.

Item Reference picture/drawing Procedure

13) Base plate assembly

(S2)

1)Remove the screw (S2) and take out the assembly.

1)Attach the assembly to the boss (L14) as if inserting, then clamp with the screw.

(

)

L14

Fig. 2-7-13

14⁄ Entrance guide base assembly, ¤ Worm wheel 2, ‹ Timing belt, <Removal>

Center gear assembly

›

(S2)

1) The entrance guide base assembly can be removed by removing the screw (S2). Other parts can be removed by simply pulling them out.

Fig. 2-7-14(a)

1) Reverse the removal procedure. See Fig.. 2-7-14(b) for the worm wheel 2.

Align the phase of the rotary encoder assembly

, then attach the main deck assembly by align-

ing the phase hole with the rotary encoder assembly.

Fig. 2-7-14(b) Attaching Worm Wheel 2

Phase alignment

Marking (Red)

2-20

2-21

No.

Item Reference picture/drawing Procedure

15ﬁ Reel drive pulley assembly, ﬂ Push plate, ‡ Clutch lock gear (1),

Clutch lock gear (2)

(W1)

(W3)

(P6)

(W1)

1)Remove the washer (W1) and take out the assembly.

1) Reverse the removal procedure.

Fig. 2-7-15

2-21

2-22

No.

Item Reference picture/drawing Procedure

16· Tension control arm assembly, ‚ Brake control arm assembly,

Charge arm assembly

(

)

L16

(W1)

(

)

L17

(

L15

)

1)The brake control assembly can be removed after removing the washer (W1).

1)Align the phases of the main cam and sub cam , then attach by reversing the removal procedure. Refer to Fig. 2-7-16(b) and Fig. 2-7-16(c).

Fig. 2-7-16(a)

Bosses

(Phase alignment)

Align the phase of the main cam ∞ then attach by fitting the bosses in the cam groove.

Fig. 2-7-16(b)

Attaching Tension Control Arm Assembly

and Brake Control Arm Assembly

‚

•

, then

Phase alignment

Bosses (Phase alignment)

Phase alignment Boss (Phase alignment) Align the phase of the sub cam attach by fitting the boss into the cam groove.

Fig. 2-7-16(c) Attaching the Charge Arm

Assembly

2-22

2-23

No.

Item Reference picture/drawing Procedure

17™ Connect gear 2 (SUP), £ Connect gear 2 (TU)

(S2)

1)Remove the screw (S2) and take out the gears.

1)Reverse the removal procedure. The two connect gears 2 are given the same part number.

NOTE

⋅ Align the phases of the main cam and sub

cam when attaching.

Fig. 2-7-17

2-23

2-24

No.

Phase alignment

Boss

Item Reference picture/drawing Procedure

18¢ Rotary encoder assembly, ∞ Main cam , § Arm gear 1 assembly,

Centering arm assembly

Collar

(

L18

(S2)

)

(S2)

(W1)

Fig. 2-7-18(a)

1)The rotary encoder can be removed by removing the 2 screws (S2).

2)The main cam can be removed by removing the washer (W1). As the cam gear is engaged at the rear of the main deck assembly while the phase is aligned, deviate the phase in the direction of the arrow before removal. (See Fig. 2-7-18(b).)

L18

Phase alignment

Fig. 2-7-18(b) Removing the Centering Arm

Assembly

Marking (Red)

Phase alignment

Align the phase of the main cam ∞, then attach by aligning the redcolored markings

Fig. 2-7-18(c) Attaching the Rotary Encoder Assembly

(on 2 gear teeth) inside Q.

1)Align the phase by referring to Figs. 2-7-18(c) and 2-7-18(d), then attach the ass’ies reverse the removal procedure.

Align the phases of the arm gear 1 assembly

and centering arm assembly ¶, then align those of the arm gear 1 assembly arm assembly

, attach the gear by fitting the

and centering

bosses into the cam groove below, and fit the slit washers.

Fig. 2-7-18(d) Attaching the Main Cam

∞

2-24

2-25

No.

Item Reference picture/drawing Procedure

Sub cam ª Arm gear 2 assembly, º Clutch lock lever assembly

•

(S2)

(

)

L19

1)Remove the screw (S2) and take out the sub cam . As L19 is engaged at the rear of the main deck assembly while the phase is aligned, deviate the phase in the direction of the arrow before removal.

20. This checking should be done after completing the switching point adjustment.

Phase alignment

L19

Fig. 2-7-19(b) Removing the Clutch Lock Lever

Assembly

Fig. 2-7-19(a)

1)Align the phase correctly by referring to Fig. 2-719(c), then attach by reversing the removal procedure.

Boss

Phase alignment

Align the phases of the arm gear 2 assembly and clutch lock lever assembly º, attach them by fitting the boss into the cam groove below, and clamp with the screw.

Fig. 2-7-19(c) Attaching the Sub Cam

•

2-25

2-26

No.

Item Reference picture/drawing Procedure

20e Cleaner assembly

（W2）

1)Remove the washer (W2)

2)Take out the

1)Reverse the removal procedure.

2)Activate the cleaner (loading) and ensure that the cleaner contacts the drum normally. (Make sure that the cleaner rotation sound is heard.)

After the active head cleaner assembly has been disassembled and assembled, the following adjustment is required to restore the pressure of contact of the cleaner to the drum.

1)Rotate screw Å fully clockwise until it is stopped, then rotate it counterclockwise by 2.5 turns. (The clamping torque is 4.9 x 10 less)

2)Rotate screw then rotate it counterclockwise by 0.5 of a turn. (The clamping torque is 4.9 x 10 or less)

3)Activate the cleaner (perform loading) and confirm that the contact between the claw, cleaner and drum is normal. (The rotation sound of the cleaner should be audible now.)

4)If the cleaner does not work normally, rotate screw

clockwise by 1/8 turn and check the operation

again.

cleaner assembly.

-4

N m/0.5 kgf cm or

fully clockwise until it is stopped,

-4

N m/0.5 kgf cm

Fig. 2-7-18(c)

2-26

2-27

2.8 CONFIRMATION AND ADJUSTMENT OF MECHANISM PHASES

See Fig. 2-8-1.

Worm wheel 2

See section 2.7.14

1 Worm wheel 2

See section 2.7.18

Arm gear 1 assembly

See section 2.7.18

Arm gear 2 assembly

See section 2.7.19

Sub cam

See section 2.7.19

Main cam

See section 2.7.18

Centering arm assembly

See section 2.7.18

Fig. 2-8-1

Clutch lock lever assembly

See section 2.7.19

2-27

2-28

2.9 MECHANISM DISASSEMBLY/ASSEMBLY SHEET

Screw Management

Drawing No.

No.

Ta bl e

2S13S24S25

6S27S28S29

Application

10 S2

11S212

13 S2

15S216S217S218

14 S3

!Å1 2 347

Ref. No.

Cassette housing assembly

(L4)

(L3)

S×12,L1-L5

Control plate

No.1 No.2 No.5 No.9

(L1)

(S1)

(L5)

Drum assembly

(S2)

(S1)

3



Motor bracket assembly

(L2)

(S2)

 

Middle catcher assembly

(S2)

 

Guide rail (TU) assembly

(S2)

No.8

Reel cover assembly

(S2)

S2,L6

Pinch roller arm assembly

(W1)

W1,7

Sub-brake assembly

(W1)

(P1)

P1,W1,L8

Guide rail (SUP) assembly

(

L13

)

(S2)

L12

Center gear

›

assembly

Main cam

∞

W1 L18 S2

Reel drive

ﬁ

pulley assembly

(W1)

W1 W1

(W1)

Push plate‡ Clutch lock

ﬂ

(W1)

Arm gear 1 assembly

Collar

gear (2)

Collar

(W3)

Clutch lock

gear (1)

(P6)

Centering arm assembly

(

)

L18

Tension control arm

assembly

(

L15

S2,L13×2

)

•

Sub cam

Brake control

‚

arm

assembly

(

) (W1)

L16

W1,L16

(S2)

2-28

2-29

Screw Management

^* ()⁄™£¢•w

19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34

S2 S2 S2 S2 S2 S2 S2 S2 S2

No.11 No.14No.13 No.19

No.12

S2 S2 S2 S2 S2 S2 S2

No.17 No.18 −

The slit washers cannot be reused once they have been removed.

Band arm plate assembly

(S3)

(P2)

S3,P2,L9,W2

Tension arm assembly

(P3)

Exit guide arm assembly

Base plate (TU) assembly

)

(S2)

(W2)

(W1)

Sub-deck assembly

(S2)

S2×4

Swing arm assembly

Entrance guide base

⁄

assembly

(S2)

Worm wheel 2

(S2)

Main brake

(SUP) assembly

(P4)

P4,L10 P5,L11

Reel base

assembly (SUP)

Prism

Timing belt

‹

Main brake

(TU) assembly

Reel base

assembly (TU)

(S2)

(P5)

2-29

2-30

S2,L14

L17 S2 S2

2S2

Charge arm assembly

(

)

L17

Arm gear 2 assembly

Connect gear 2

™

Clutch lock lever assembly

L19 S2×3ADJ NUT,P7

(S2)

(

L19

)

Connect gear 2

Capstan motor

ADJ NUT

(S2)

(P7)

Rotary encoder assembly

(S2)

Drum base deck

(S2)

2.10 DISASSEMBLY PROCEDURE LIST

(W2)

(P3)

14(S3)

(S2)

(P7)

ADJ.

NUT

(S2)

(W1)

(W3)

(P6)

(W1)

31(S2)

(S2)

7(S2)

9(S2)

8(S2)

6(S2)

(S2)

(W1)

(S2)

Collar

Note) For the grease and oil application points,

see section 5.6, ''MECHANISM ASSEMBLY PARTS LIST M6''

Fig. 2-9-1

2-30

2-31

2.11 TORQUE ADJUSTMENTS

Measuring

No. Item instruments & Mode

Input signals

Measuring point (*) Adjustment parts (-) Adjustment level (+)

Adjustment procedure

1 SUP backup

torque adjustment

• Cassette torque meter

Tension arm

Band arm plate

Counterclockwise

Play (1) nsert the cassette torque meter and enter play

* Supply side indica

tion of cassette torque meter

+1.47

+ 3.9 x 10

-0.39

(4.0 gf cm)

+1.5

-0.4

-4

N m

mode.

(2) The supply backup torque should be as speci-

fied. (If it fluctuates, read the center value.)

(3) If it is out of specification, eject the tape, re-

move the cassette housing, loosen the screw (black) slightly and fine-adjust the band holder.

Slightly turn the band holder as follows.

⋅ To increase torque: Counterclockwise ⋅ To decrease torque: Clockwise.

NOTE

The screw securing torque should be 0.0588 N-m (0.6 kgf⋅cm).

Screw (Black)

4) Check the supply backup torque again and repeat the above steps until it becomes as specified.

Clockwise

Band holder

2 TU torque

check

• Cassette torque meter

Play (1) Insert the cassette torque meter and enter play

* Take-up side

indication of cassette torque meter

+3.92

+ 4.9 x 10

-1.96

+4.0

(5.0 gf cm)

- 2.0

-4

N m

mode.

(2) Ensure that the take-up torque is as specified.

If it is out of specification, check the assembly of the reel drive parts and the center gear assembly.

2-31

2-32

2.12 COMPATIBILITY ADJUSTMENT

Start

Connect the jig connector.

Set the RF envelope adjusted waveform flat.

Turn ATF OFF, then fine-adjust the tracking

so that the envelope is exactly flat.

Is the envelope flat?

Is the envelope

restored within 1 second after mode

transition from Eject to Play?

Eject the cassette tape and start

playback. Is the envelope still flat?

Is the envelope restored

within 1 second after mode transitions

from SEARCH FWD to PLAY and from

SEARCH REV to PLAY?

Electrical

adjustments

 Tension band or

main brake

assembly defect.  Tension error.

Check the envelope during

FF and REW, and confirm that the specified

waveforms are output in both modes.

Transport system

part defect.

Enter modes PLAY → SEARCH REV →

SEARCH FWD → PLAY in this sequence,

and ensure that tape is not damaged

by wrinkles.

2.12.1 Compatibility Adjustment Flow Chart

Fig. 2-12-1 shows the flow chart of compatibility adjustment.

Fig. 2-12-1

2-32

2-33

2.12.2 Before Adjustments

Table 2-12-1 shows the adjustments to be enforced after servicing.

Adjustment Item

Servicing

Drum replacement

Required

2.12.5 Linearity Adjustment

Note 1

Required

Note 1

Required

3.6.7 Play Switching Point Adjustment

Required

Not required

3.6.8-3 Error Rate (PB EQ) Adjustment

Required

Check

IC901 replacement (PRE/REC amp on

Not required

Check

P/R & MDA board) IC501 replacement

(PB EQ on DV Main

Not required

Required

board)

DV Main board replacement

Note 2

Not required

Required

Table 2-12-1

2.12.3 Adjustment Setup

As shown in Fig.2-12-2 below, connect the connector cable to CN104 on the DV MAIN board and then connect it to the PC cable.

3.6.8-1 REC Current Adjustment

Required

Not required

Required

Not required

Required

Note 1 : Check is required after servicing or re-

placement related to the drum, TU/ SUP guide rails or tension.

Note 2 : After having replaced the DV Main

board, be sure to write the original data in the EEPROM (IC103) of the new board. If the original data cannot be written due to communication failure, mount the original EEPROM to the new board. The following data are written in the EEPROM (IC103) on the DV MAIN board.

• EVR adjustment value data

• Hour meter

• Warning history

• IEEE1394 ID code

Adjustment software

VCO DC

Switch

CN104

DV MAIN PWB

FS PLL

A GND

Connector cable PTU94018A

HID

ENV OUT

<JLIP>

RS-232C port

JVC menu

Personal computer

PC cable QAM0099-001

2-33

2-34

Fig. 2-12-2 Adjustment Setup

13.6

TU guide roller

Upper restriction

MID guide roller

No restriction

MID guide roller

No restriction

Capstan shaft

No restriction

Exit guide pole

No restriction

Reference plane (Top of main deck)

Tape sensor

2.12.4 Tape Transport Restriction

± 0.02

19.25

(10.35)

13.6

Reference plane (Top of main deck)

Tape sensor

Entrance guide pole

No restriction

Tension pole

No restriction

SP guide roller

Upper restriction

SUP slant pole

No restriction

The unit uses only the SUP guide roller and TU guide roller to restrict the tape transport. The tape is free (no restriction) from other parts.

Entrance guide pole

Tension pole

SP guide roller

SUP slant pole

Drum

TU guide roller

Fig. 2-12-3

Pinch roller

MID guide roller

TU slant pole

Capstan shaft

Exit guide pole

Fig. 2-12-4 Tape Restriction on Supply Side

Fig. 2-12-5 Tape Restriction on Take-up Side

2-34

2-35

No. Item instruments & Mode

Measuring

Input signals

2.12.5 Compatibility Adjustment

1 Preparation

Fig. 2-12-6 PC Display of Adjustment Software

Measuring point (*) Adjustment parts (-) Adjustment level (+)

Drag here to vary the tracking.

Adjustment procedure

(1) Set up the adjustment software (see section

2.12.3, “Setup”) and execute the program.

(2) If it is required to switch the auto tracking func-

tion, set [ATF] to “OFF”. When the ATF Value appears, vary the tracking value as desired.

NOTE

⋅ Be sure to clean the tape transport parts

and play a cleaning tape before proceeding to the compatibility adjustment.

2 RF envelope

adjustment

Error on supply side

• Error on supply side Oscilloscope, alignment tape MC-1(NTSC) MC-2(PAL) Color bar portion

Play

* ENV OUT [jig

connector]

* HID [jig connector]

- Supply guide roller

- Take-up guide roller + Make the wave-

forms flat. The drop level should be less than 3 dB with both SUP and TU levels.

+ Flatness variation

should be less than 2 dB.

Error on take-up side

(1) Play alignment tape color bar portion. (2) Observe the measuring points and adjust the

supply guide roller and take-up guide roller so

that the RF waveform is flat. (3) Set [ATF] to OFF and vary tracking. (4) Fine-adjust the supply and take-up guide roll-

ers to make the waveform exactly flat. (5) Set the mode to EJECT, then set to the PLAY

mode and ensure that the RF waveform is flat.

2-35

2-36

Fig. 2-12-7

No. Item instruments & Mode

Measuring

Input signals

Measuring point (*) Adjustment parts (-) Adjustment level (+)

Adjustment procedure

3 Waveform

rise check

4 Damage

check

5 Envelope

check during FF/REW

ENV OUT

• Oscilloscope, alignment tape MC-1(NTSC) MC-2(PAL) Color bar portion

• Self-recorded/ played tape 60ME

• Oscilloscope, alignment tape MC-1(NTSC) MC-2(PAL) Color bar portion

Eject →Play Search FWD →Play Search REV → Play

Play

↓

Search REV

↓

Search FWD

↓

Play

FF REW

* ENV OUT

[jig connector]

* HID [jig connector] +The envelope

waveform should be restored within 1 sec.

* ENV OUT

[jig connector]

* HID [jig connector] +The tape should not

be damaged by wrinkle.

* ENV OUT

[jig connector]

* HID [jig connector] +A > 55µsec. +B

T/3

MAX

(1) Switch the mode from Eject → Play and en-

sure that the envelope waveform is restored in less than 1 sec.

(2) Switch the mode from Search FWD → Play

and from Search REV → Play, and ensure that the envelope is restored in less than 1 sec. in both cases.

(3) If the waveform does not restore in the speci-

fied period, fine-adjust the supply/take-up guide rollers as far as the envelope waveform specification is met, then restart checking from the above procedure 1 again.

(1) Transport the self-recorded/played tape from

the beginning by changing modes in order of Play → Search REV → Search FWD → Play, and ensure that wrinkles due to strong restriction by the guide rollers and guide pole are not produced on tape.

(2) Perform the same check at the section near

the end of tape.

(1) Insert the alignment tape and enter Stop mode. (2) Enter FF mode. (3) Ensure that the envelope output is present at

55 (s before the HID switching timing.

(4) Check the take-up side of the envelope to see

that the MAX output duration is more than 1/3 the HID duration.

This checking should be done after completing the switching point adjustment.

(5) Enter REW mode and check the same items

as (3) and (4) above.

(6) If the envelope is out of specification, check

the tension band and main brake assembly and replace as required. Confirm the playback switching point.

HID

Fig. 2-12-8

HIGH

LOW

2-36

2-37

SECTION 3

ELECTRICAL ADJUSTMENTS

3.1 FLOWCHART OF ELECTRICAL ADJUSTMENTS

CAMERA PART VCR PART AUDIO PART

Malsyncronizing

3.5.1 SSG Adjustment

END

Abnormal video level

Abnormal

color-bar level

GOOD

3.5.4 Video White Level Adjustment

3.5.6 Iris Level Adjustment

Abnormal

REC/PB level

END

3.5.2 Encoder Adjustment

3.7.7 Servo Circuit Adjustment

3.7.8 RF Circuit Adjustment

END

Abnormal audio level

3.7.10 Audio Circuit Adjustment

3.6.2 Audio Circuitry Adjustment

END

Abnormal video level

3.6.3 Video Circuitry Adjustment

3.7.8 RF Circuit Adjustment

Poor color reproductivity

Abnormal

white level

GOOD

Abnormal

lens capped

black level

GOOD

3.5.5 Flare Correction Adjustment

END

3.5.4 Video White Level Adjustment

3.5.3 Video Black Level Adjustment

3.7.9 Video Circuit Adjustment

END

Block noise

3.7.8-3 Error Rate Adjustment

END

3-2

3-1

3.2 FUNCTIONS REQUIRED FOR ADJUSTMENTS, SETUP

3.2.1 General instruments necessary for adjustment

Instrument Condition

Oscilloscope

Calibrated instrument with a measuring

bandwidth of 100 MHz or more. Vectorscope Audio tester

Calibrated instrument

Instrument Condition

Frequency counter

Instrument calibrated for 8 digits or more. Stability of 0.1 ppm or 1x10 required at 0 to 40°C.

Monitor TV

Color video monitor with a 75Ø video in-

-7

or better is

put.

3.2.2 Special implements required for adjustment

123

Waveform monitor (WFM)Computor

Gray scale chart

(Part No.:GS2L)

Windows 95 or NT

S14X7.3B12 or equiv.

Lens

Viewfinder

VF-P115B or equiv.

Tripod base

Power supply unit Monitor TV

AA-P250 or equiv.

Connector cable PTU94018A Adjustment software PLSC1304

Fig. 3-1-1 Special implements required for adjustment

Alignment tape

MC-1 : NTSC MC-2 : PAL

1210 11

PC cable QAM0099-001

3-3

3-2

3.3 STANDARD SETUP

Color video monitor

Vectorscope

75 Ø resistor for termination

Test pattern

Waveform monitor (WFM)

2 m or more

3200 K illumination

Filter 1 (3200 K)

FILTER 1 3200k 2 5600k 3 5600k+ND

STATUSSHUTTER

AUTO IRIS LOLUX

FULL AUTO BLACK

BACK L NORMAL SPOT L

T S E V A S

N I A

G R T V

ALARM

MONITOR

STRETCH NORMAL COMPRESS

B N E

O N

T K

S F O

F T

O U

A B . T H

W T U P

T U O

POWER

ON OFF

75 Ø resistor for termination

OPERATE/WARNING

LIGHT

RESET

OFF

MONITOR

COUNTER

SELECT

CTL TC UB

CH-2

CH-1

AUDIO LEVEL

Oscilloscope

AC adapter (12 V DC INPUT)

3.4 ADJUSTMENT MENU

3.4.1 Switches and Functions Used in Adjustments

ROM

12345678

S901

ROM BOARD

SW901-1 on ROM board : Set to ON (up) to display the adjustment menu on the viewfinder screen and enter the adjustment

mode. Set to OFF (down) to turn off the adjustment menu on the viewfinder screen and exit from the adjustment mode.

SHUTTER/MENU dial : Used to select an adjustment item, adjust the selected item and store the adjusted value in memory.

3-4

3-3

3.4.2 Operation Procedure

(1) Open the right side cover and set the DIP switch SW901-1 on the ROM board to ON (up). (2) When the cursor on the left of an item is blinking and the adjustment value is lit steadily, rotating the SHUTTER/MENU dial selects

the adjustment item. Rotate this dial continuously to turn over the page of the MENU screen.

(3) When the cursor on the left of an item is blinking and the adjustment value is lit steadily, pushing the SHUTTER/MENU dial causes

the selected item to blink.

(4) When the cursor on the left of an item is blinking and the adjustment value is blinking, rotating the SHUTTER/MENU dial varies the

adjustment value.

(5) When the cursor on the left of an item is blinking and the adjustment value is blinking, pushing the SHUTTER/MENU dial stores the

adjustment value in memory and returns to the adjustment item selection step.

(6) Set the DIP switch SW901-1 on the ROM board to OFF (down) to exit from the adjustment mode.

Adjustment Menu

MAC– ERA AD J UST MENU– 2 / 6

Cursor

DSP I N BLACK : 128 DSP I N B LACK<R> : 1 2 8

MASTER BLACK : 12 8

Adjustment item

Cursor

Blinking

Adjustment Value

Steady lighting

Blinking

3.4.3 Flowchart of ADJUST MENU

C– AMERA AD JUS T MENU– 1 / 6 HFO

ET ST OUT LEVEL : O

Adjustment value

DSP data

000

NAM APL:32

SHUTTER/MENU Dial

Rotate

Push Selects an adjustment item. Adjustment value blinks.

Varies an adjustment value. Stores adjustment value in memory.

Functions of SHUTTER/MENU Dial

C– AMERA AD JUS T MENU– 2 / 6 DSP I N BLACK: O DSP I N B LACK< R> : O MASTER BLACK :O

DSP d a t a

000

NAM APL:32

C– AMERA AD JUS T MENU– 3 / 6 AGC I N B LACK <G> : O AGC I N BLACK : O AGC I N B LACK <R> : O

DSP data

000

C– AMERA AD JUS T MENU– 6 / 6

IRIS LEVEL :O

C– AMERA AD JUS T MENU– 5 / 6 FL ARE B : O FL ARE R : O ABL ADJUST : O

DSP data

32 32 32

C– AMERA AD JUS T MENU– 4 / 6 IN GAIN G :O IN GAIN B :O IN GAIN R :O

DSP data

438 438 438

3-5

3-4

No. Item

instruments & Input signals

3.5 CAMERA ADJUSTMENTS

3.5.1 SSG Adjustment

Measuring

fh frequency

adjustment

C– AMERA AD JUS T MENU– 1 / 6 HFO ET ST OUT LEVEL : O

• Frequency counter

Mode

Adjustment menu 1/6 (Color bar output)

Measuring point Adjustment parts Adjustment level

* TP101 (CAM2)

- SHUTTER/MENU

dial

+ 27 MHz ±30 Hz

TP101

(*) (-)

Adjustment procedure

(+)

(1) Open the left side cover. (2) Rotate the SHUTTER/MENU dial to select

MENU 1/6: FH.

(3) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(4) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

3.5.2 Encoder Adjustments

TEST OUT

LEVEL adjustment

CHROMA

LEVEL adjustment

C– AMERA AD JUS T MENU– 1 / 6 HFO ET ST OUT LEVEL : O

• Oscilloscope (H-rate, 10:1) or WFM

• Vectorscope

C– AMERA AD JUS T MENU– 1 / 6 HFO ET ST OUT LEVEL : O

CAM2

VR801

board

Adjustment menu 1/6 (Color bar output)

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ 1 Vp-p ± 0.003 Vp-p

(140 IRE ±4 IRE)

* TEST OUT

(75 Ø terminated)

- VR801 (CAM2) + All the spots of the

color bar signal should be within the

marks of the vectorscope and the burst level should be as specified.

NTSC 0.286 ± 0.015 Vp-p

PAL 0.3 ± 0.015 Vp-p

(1) Rotate the SHUTTER/MENU dial to select

MENU 1/6: TEST OUT LEVEL.

(2) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(3) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

[PAL][NTSC]

(1) Open the left side cover. (2) Adjust VR801 on the CAM2 board to the speci-

fied level.

TP101

VR801

NTSC PAL

Adjust so that all the spots are located inside the marks.

3-6

3-5

CAM2 board

No. Item

instruments & Input signals

3.5.3 Video Black Level Adjustments

Measuring

DSP IN

BLACK adjustment

• Oscilloscope (H-rate, 10:1) or WFM

• Vectorscope

• Lens capped

or iris closed.

C– AMERA AD JUS T MENU– 2 / 6 DSP I N BLACK: O DSP I N B LACK< R> : O MASTER BLACK :O

DSP data

000

NAM APL:32

Mode

Adjustment menu 2/6

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ Position the noise

on the B-Y

L axis at

the center of the vectorscope.

B-YL axis

Adjustment procedure

(1) Rotate the SHUTTER/MENU dial to select

MENU 2/6: DSP IN BLACK .

(2) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(3) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

C– AMERA AD JUS T MENU– 2 / 6

DSP I N BLACK: O

MASTER BLACK :O

000

23:LPAMAN

O:>R<KCALBNIPSD

atadPSD

>hcR<>hcG<>hcB<

+ Position the noise

on the R-C

Y axis at

the center of the vectorscope.

R-CY axis

+ Position NAM APL

at the center of 32 MASTER BLACK variation range.

C– AMERA AD JUS T MENU– 2 / 6

DSP I N BLACK: O

MASTER BLACK :O

000

23:LPAMAN

O:>R<KCALBNIPSD

atadPSD

>hcR<>hcG<>hcB<

(4) Rotate the SHUTTER/MENU dial to select

MENU 2/6: DSP IN BLACK <R>.

(5) Push the SHUTTER/MENU dial so that the ad-

justment value blinks, then rotate it to adjust to the specified level.

(6) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

(7) Rotate the SHUTTER/MENU dial to select

MENU 2/6: MASTER BLACK.

(8) Push the SHUTTER/MENU dial so that the ad-

justment value blinks, then rotate it to adjust to the specified level.

(9) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

(10)

Check the following condition.

NTSC 5.3 ± 7 Vp-p

PAL 0 ± 7 Vp-p

Carrier: less than 30 mVp-p

3-7

3-6

No. Item

Measuring instruments & Input signals

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

Adjustment procedure

AGC IN

BLACK adjustment

• Oscilloscope (V-rate, 10:1) or WFM

• Lens capped or iris closed.

• Vectorscope

C– AMERA AD JUS T MENU– 3 / 6 AGC I N B LACK <G> : O AGC I N BLACK : O AGC I N B LACK <R> : O

DSP data

000

C– AMERA AD JUS T MENU– 3 / 6 AGC I N B LACK <G> : O AGC I N BLACK : O AGC I N B LACK <R> : O

DSP data

000

Adjustment menu 3/6

GAIN SW H (+18 dB)

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ Minimize V shading.

GOOD

+ Minimize V shading.

(1) Rotate the SHUTTER/MENU dial to select

MENU 3/6: AGC IN BLACK <G>.

(2) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(3) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

(4) Rotate the SHUTTER/MENU dial to select

MENU 3/6: AGC IN BLACK .

(5) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(6) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

3-8

3-7

C– AMERA AD JUS T MENU– 3 / 6 AGC I N B LACK <G> : O AGC I N BLACK : O AGC I N B LACK <R> : O

DSP data

000

Ensure that noise display is almost completely circular.

NG GOOD

+ Minimize V shading.

(7) Rotate the SHUTTER/MENU dial to select

MENU 3/6: AGC IN BLACK <R>.

(8) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(9) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

(10)

Check that the noise display on the vectorscope is close to a true circle. If the circle is distorted, repeat (1) to (9) until it approaches a true circle.

(11)

Set the GAIN SW to L (0dB).

No. Item

instruments & Input signals

3.5.4 Video White Level Adjustments

Measuring

IN GAIN

adjustment

• Oscilloscope (H-rate, 10:1) or WFM

• Gray scale chart (precisely scanned size)

Mode

Adjustment menu 4/6

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

* TP2 (TG,Open the

left side cover)

- Lens iris + 1.00 ± 0.01 Vp-p

Adjustment procedure

(1) Rotate the SHUTTER/MENU dial to select

MENU 4/6: IN GAIN <G>.

(2) Shoot the gray scale chart and adjust the lens

iris so that the white peak level is as specified.

ROM board

TP1

TP2

C– AMERA AD JUS T MENU– 4 / 6 IN GAIN G :O IN GAIN B :O IN GAIN R :O

DSP data

438 438 438

C– AMERA AD JUS T MENU– 4 / 6

IN GAIN G :O IN GAIN B :O IN GAIN R :O

DSP data

438 438 438

C– AMERA AD JUS T MENU– 4 / 6 IN GAIN G :O IN GAIN B :O IN GAIN R :O

DSP data

438 438 438

TG board

TP3

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ DSP DATA <G>:

515 ± 2

(3) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(4) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ DSP DATA :

± 2 of DSP DATA <G>

(5) Rotate the SHUTTER/MENU dial to select

MENU 4/6: IN GAIN .

(6) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(7) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ DSP DATA <R>:

± 2 of DSP DATA <G>

(8) Rotate the SHUTTER/MENU dial to select

MENU 4/6: IN GAIN <R>.

(9) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(10)

Push the SHUTTER/MENU dial to store the adjustment data in memory.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

(11)

Minimize the white carrier leak signal of the video signal by repeating steps (5) to (10). (Carrier leak: less than 30 mVp-p)

+ Minimize the carrier

leak.

3-9

3-8

No. Item

FL ARE B : O FL ARE R : O ABL ADJUST : O

DSP data

32 32 32

C– AMERA AD JUS T MENU– 5 / 6

instruments & Input signals

3.5.5 Flare Correction Adjustments

Measuring

Flare adjust-

ment

• Oscilloscope (H-rate, 10:1) or WFM

• Gray scale chart (precisely scanned size)

Mode

Adjustment menu 5/6

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

* TEST OUT

(75 Ø terminated)

- Lens iris +

NTSC 0.714 Vp-p

PAL 0.7 Vp-p

h Opened by 1 f-stop

Adjustment procedure

(1) Rotate the SHUTTER/MENU dial to select

MENU 5/6: ABL.

(2) Shoot the gray scale chart and adjust the lens

iris so that the white peak level is 0.714 Vp-p.

(3) Open the iris by 1 stop further.

C– AMERA AD JUS T MENU– 5 / 6 FL ARE B : O FL ARE R : O ABL ADJUST : O

DSP data

32 32 32

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ Minimize window

black carrier leakage.

(4) Rotate the SHUTTER/MENU dial to select

MENU 5/6: FLARE .

(5) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(6) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ Minimize window

black carrier leakage.

(7) Rotate the SHUTTER/MENU dial to select

MENU 5/6: FLARE <R>.

(8) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(9) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

3-10

3-9

≤ 30mVp-p

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

(10)

Minimize the black carrier leak signal of the gray scale window by repeating the steps (4) to (9).

dial

+ Minimize window

black carrier leakage.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

* TEST OUT

(75 Ø terminated)

- Lens iris + 0.714 Vp-p (100 IRE)

NTSC 0.714 Vp-p

PAL 0.7 Vp-p

(11)

Adjust the lens iris to return the white peak of

the gray scale to 0.714 Vp-p(NTSC) 0.7 Vpp(PAL).

(12)

Ensure that the level of the black section of the window is no more than 30 mVp-p.

No. Item

Measuring instruments & Input signals

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

Adjustment procedure

ABL adjust-

ment

• Oscilloscope (H-rate, 10:1) or WFM

• Gray scale chart (precise scanned size)

C– AMERA AD JUS T MENU– 5 / 6 FL ARE B : O FL ARE R : O ABL ADJUST : O

DSP data

32 32 32

3.5.6 Iris Level Adjustment

IRIS LEVEL

adjustment

• Oscilloscope (H-rate, 10:1) or WFM

• Monitor TV

• Gray scale chart

(precise scanned size)

Adjustment menu 5/6

Adjustment menu 6/6

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

+ Gray scale chart

window black level:

NTSC 110 +5/–0 mVp-p

PAL 55 +5/–0 mVp-p

* TEST OUT

(75 Ø terminated)

- SHUTTER/MENU

dial

NTSC 0.714 ± 0.03 Vp-p

PAL 0.7 ± 0.03 Vp-p

(1) Rotate the SHUTTER/MENU dial to select

MENU 5/6: ABL.

(2) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(3) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

NTSC 0.714 Vp-p

PAL 0.7 Vp-p

(1) Rotate the SHUTTER/MENU dial to select

MENU 6/6: IRIS LEVEL.

(2) Push the SHUTTER/MENU dial so that the ad-

justment value blinks then rotate it to adjust to the specified level.

(3) Push the SHUTTER/MENU dial to store the

adjustment data in memory.

C– AMERA AD JUS T MENU– 6 / 6

I R I S L EVEL : O

3-11

3-10

3.6 VCR ADJUSTMENTS

3.6.1 Audio Circuitry Adjustments

Before adjustments, set the audio switches, menu and potentiometer as follows.

LINE

AUDIO LEVEL

AUDIO IN

EARPHONE

DC OUTPUT

DC INPUT

CH-1

LINE MIC

CH-2

LINE MIC

+48V

AUDIO INPUT

TALLY

LITHIUM BATT.

REAR

MANUAL

CH-2CH-1

CH-1

AUTO

MANUAL

AUDIO SELECT

AUDIO INPUT

CH-1 CH-2

FRONT

REAR

ITEM MENU

AUDIO

CH-2

PRESET

REGEN

TC GENERATOR

FREE

REC

CONTINUE MENU

DATA SET

SELECTITEMGROUP

PRESETADVANCESHIFTHOLD

OFF

ZEBRA

AUTO

SKIN

AREA

VTR

AUDIO

LEVEL CH-1

WHITE

ACCU FOCUS

TAKE

MAX (10)

• Potentiometer and measuring points for adjustments

TP209

TP210

VR602

VR601

VIDEO/SYSCON board

AUDIO/LCD board Y/C OUT terminal

VR302

VR301

VR303 VR304

244:LOW CUT

245 :SAMPLE RATE

246 :FRONT VOLUME

OFF

48K

ENABL E D I SABLE

∗ Refer to page 67 of the instruction book.

Y/C OUT MONITOR OUT

LINE OUT

CH-1 CH-2

3-12

3-11

LINE

EARPHONE

DC OUTPUT

DC INPUT

CH-1

LINE MIC

+48V

CH-2

LINE MIC

+48V

TALLY

No. SIGNAL

AUDIO IN

AUDIO INPUT

Rear panel AUDIO IN connector

GND

HOT

COLD

No. Item

3.6.2 Audio Circuitry Adjustments

Note : Before proceeding to section “3.5.2 Audio Circuitry Adjustments”, complete “3.6.10 Audio Circuitry Adjustment of DV Unit”.

Preparation Before adjustments, set the audio switches, menu

Measuring instruments & Input signals

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

and potentiometer as follows:

[Switches]

AUDIO IN : LINE AUDIO INPUT : REAR AUDIO SELECT : MANU

[Menu]

LOW CUT : OFF SAMPLING RATE : 48KHz FRONT VOLUME ENABLE : DISABLE

[Potentiometer(Front panel)]

AUDIO LEVEL CH1 : MAX (10)

Adjustment procedure

INPUT LEVEL

adjustment

OUTPUT

LEVEL adjustment

Record/play

level adjustment

• 1kHz,+4dBs

• Audio tester

• 1kHz,+4dBs

• Audio tester

• 1kHz,+4dBs

•Audio tester

Self-recording/ playback

* TP209 (CH1)

[AUDIO LCD]

- VR201 (CH1)

[AUDIO LCD]

* TP210 (CH2)

[AUDIO LCD]

- VR202 (CH2)

[AUDIO LCD]

+ –22 dBs

* LINE OUT

- VR302 (CH1)

[AUDIO LCD]

- VR303 (CH2)

[AUDIO LCD]

+ –6 dBs

* LINE OUT

- VR301 (CH1)

[AUDIO LCD]

- VR304 (CH2)

[AUDIO LCD]

+ –6 dBs

(1) Apply a +4 dBs signal to the AUDIO INPUT

connector of REAR and adjust the adjustment points so that the levels at the measuring points are as specified.

(1) Perform this adjustment after completing 2

above.

(2) Apply a +4 dBs signal to the AUDIO INPUT

connector of REAR and adjust the adjustment points so that the levels at the measuring points are as specified.

(1) Perform this adjustment after completing 2 and

3 above.

(2) Apply a +4 dBs signal to the AUDIO INPUT

connector of REAR and record the audio onto tape.

(3) Play the tape recorded in (2) and adjust the

adjustment points so that the levels at the measuring points are as specified.

Level meter

adjustment

• 1kHz,+4dBs

* LCD

- VR601 (CH1)

[AUDIO LCD]

- VR602 (CH2)

[AUDIO LCD]

+ LCD's audio level

meter display: “–20”

(1) Perform this adjustment after completing 2,3

and 4 above.

(2) Apply a +4 dBs signal to the AUDIO INPUT

connector of REAR and adjust the adjustment points so that the audio level meter of LCD indicates “–20” for both channels.

3-13

3-12

No. Item

instruments & Input signals

3.6.3 Video Circuitry Adjustments

Measuring

SETUP PULSE

adjustment

• Oscilloscope (V-rate, 10:1)

• MC-1:NTSC MC-2:PAL (alignment tape) color bar section

1.5 µsec

Mode

SETUP: ON (MENU)

9.0 µsec

Measuring point Adjustment parts Adjustment level

TP3[VIDEO/SYSCON]

VR2[VIDEO/SYSCON]

+ 9.0 ± 0.1 µs

VR3[VIDEO/SYSCON]

+ 1.5 ± 0.1 µs

(*) (-)

Adjustment procedure

(+)

(1) Play the color bar section of alignment tape

MC-1 / MC-2.

(2) Adjust the adjustment point so that the initial

duration of the SETUP pulse (see diagram on the left) is as specified.

(3) Adjust the adjustment point so that the nega-

tive-going duration of the SETUP pulse is as specified.

DELETE

PULSE adjustment (NTSC only)

Y LEVEL

adjustment

C LEVEL

adjustment

• Oscilloscope (V-rate, 10:1)

• MC-1 (alignment tape) color bar section

• Oscilloscope (H-rate)

Y SIGNAL

• Oscilloscope (H-rate)

C SIGNAL

SETUP: ON (MENU)

Color bar

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Color bar

Color bar

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Color bar

TP2[VIDEO/SYSCON]

VR4[VIDEO/SYSCON]

+ 1.23 ms

1.23 msec

* Y signal output

(75Ω terminated) VR6[VIDEO/SYSCON]

+ 1.0 Vp-p

* Y signal output

(75Ω terminated) Adjustment software

+ 1.0 Vp-p

* C signal output(75Ω

terminated) VR5[VIDEO/SYSCON]

+ NTSC 0.286 Vp-p

PAL 0.3 Vp-p

burst level

* C signal output

(75Ω terminated) Adjustment software

(1) Play the color bar section of alignment tape

MC-1.

(2) Adjust the adjustment point so that the pulse

duration at the measuring point is as specified.

(1) Set the camera to the color bar mode. (2) With the VCR set to EE, adjust the adjustment

point so that the Y signal level in Y/C OUT is as specified.

(3) Adjust the Y signal level to the specified level

using the adjustment software (see section

3.7.9-1).

(1) Set the camera to the color bar mode. (2) With the VCR set to EE, adjust the adjustment

point so that the C signal level in Y/C OUT is as specified.

(3) Adjust the C signal level to the specified level

using the adjustment software (see section

3.7.9-2).

+ NTSC 0.286 Vp-p

PAL 0.3 Vp-p

burst level

3-14

3-13

VR5

TP3

VR6

LINE OUT

CH-1 CH-2

TP2

VR4

VR3

VR2

Y/C OUT MONITOR OUT

VIDEO/SYSCON board Y/C output

3.7

DV ADJUSTMENTS (USING ADJUSTMENT SOFTWARE)

3.7.1 Precautions

(1) The adjustments of the DV circuit (VTR Unit) of this model

require a PC. These adjustments are necessary after replacement of the following parts.

• EEPROM (IC103 on DV Main board)

• Mechanism parts

In case of a problem with the electrical circuit, be sure to identify the point of the trouble first by using measuring instruments. Do not proceed to repair, replacement or adjustment unless the location of the trouble has been identified.

(2) When observing a TP on a chip, avoid applying stress by

using an IC clip, etc. In order to prevent the pattern from being peeled off when replacing a chip part, particularly in the case of an IC, remove the solder completely before removing the part.

(3) The connectors tend to be broken easily. Be careful when

unplugging or plugging a wire.

(4) Before starting any adjustments, be sure to save the

EEPROM data in a PC file for use as backup data in case of an adjustment failure (see section 3.7.12).

(5) When the adjustment software is run, a tape can be recorded

even if its REC SAVE tab is set to “SAVE”. Be careful not to record anything onto an alignment tape by mistake.

(6) When the adjustment software is run, the operations per-

formed on the main unit do not cause the VCR Unit to function accordingly.

(7) When loading a tape into the GY-DV500, at the same time

the power is turned on while the tape is loaded, the unit automatically enters the REC PAUSE mode. To cancel the REC PAUSE mode, press the STOP buttons both of the main unit and of the adjustment software.

(8) When the adjustment software is run, set the Menu switch

“VIDEO 126 :INPUT SELECT” to “IEEE1394” . (Only U-ver.)

3.7.3 Setup for PC Adjustment

Note: This switch is not used with the adjustments of the GY-

DV500.

Adjustment software

RS-232C port

PC cable QAM0099-001

VCO DC

Switch

(Note)

CN1004

DV MAIN PWB

JVC

FS PLL

A GND

HID

ENV OUT

<JLIP>

Connector cable

3.7.2 Equipment Required for Adjustments

PC (Windows machine. Recommended CPU: Pentium 133

MHz or more) Color TV monitor

Oscilloscope (2-trace, 100 MHz or more)

* 300 MHz or more recommended. Digital voltmeter

Frequency counter (with threshold level adjustment)

Tape for use in recording/playback (JVC ME60)

Cleaning tape

Fig. 3-7-1 Setup for PC Adjustment

3-15

3-14

3.7.4 Installing the Adjustment Software

7 8

90 !

345 1

Insert the floppy disk of the adjustment software and run

“Setup.exe”. “Professional DV Adjustment” will be created in “Program” under the Start menu.

3.7.5 Operating the Adjustment Software

1. Startup

Execute “Professional DV Adjustment”. When the following screen appears, click <OK> because the adjustment software automatically reads the EEPROM data at the start.

2. Function description

Fig. 3-7-5

TV System and Model window

Shows the TV system and model selected for the software in [

System Option...].

[View] tab

Fig. 3-7-2

The following screen appears when [ der the [ ware is started up. Select the “TV System” and “Model” and click <OK>. This setting is also operative during the next startup. (With the domestic models, select “ and “GY-DV500”.)

If the set “TV System” differs from the setting in the adjustment software, the following warning message appears. Set “TV System” correctly. If the IEEE 1394 ID is not set, the message appears too. Set the ID correctly. (See 3.6.13)

Option] tab is clicked, or the first time that the soft-

Fig. 3-7-3

System Option...] un-

NTSC” (or “PAL”

Fig. 3-7-6

• VCR Controller “ 6 ”

•

DSP Controller “ 8 ”

•

ROM Tools “

• ROM

Monitor

•

Error Rate Monitor

• Error Rate Switch each item ON or OFF. The details will be described later.

[Adjustment] tab

•

Adjustment Explorer (Adjustment menu)

• Active

Switch each item ON or OFF.

Head Cleaner Adjustment Forced operation mode for use in adjusting the position of the active head cleaner installation. (See 3.7.14.)

Check

”

3-16

3-15

Fig. 3-7-4

Fig. 3-7-7

[Option] tab

(4)

(5)

Fig. 3-7-8

• COM Port selection From COM1 to COM4, select the COM port to which

the communication cable is connected.

•

System Option... Select the TV signal format and the model of the connected VCR.

•

IEEE1394 ID Setting ID setting utility of the IEEE1394 standard. (See 3.7.13.)

•

Emulation Mode ON/OFF The emulation mode makes it possible to use the adjustment software even when communication with the VCR is not available. As the following window is displayed in case of a communication error, check “Enter the Emula- tion Mode”.

ROM file display

Shows the file name or “Current VCR data” while a ROM tool reads EEPROM data. Clicking [ROM

[View] tab displays the data contents.

3.7.6 Common Operations for Adjustments

Note: Before adjustment, be sure to save the EEPROM

data in a PC file as the backup for use in case of adjustment failure. (See 3.6.12.)

(1) Under the [

Adjustment] tab, check [Adjustment Explorer].

Monitor] under the

Fig. 3-7-9

[Help] tab

Displays the version information of the adjustment software.

VCR Controller

Controls the VCR operations.

ROM Tools

Used to check, save, print, modify the memory in the EEPROM (IC103 on DV Main board) or to initialize it. (See

3.7.12.)

DSP Controller

Used to control the TV signal generator in the VTR Unit, switch SHUFFLE, CONCEALMENT and VITERBI ON/OFF. Clicking “

COM port display

Shows the COM port in use.

Communication status display

Shows one of the following messages according to the communication status. CONNECTED: Normal communication UNKNOWN: Communication error EMULATION MODE: In emulation mode

” resets them to the defaults.

Fig. 3-7-10

(2) Click the desired adjustment items. (3) To monitor the video output from the VCR Unit, press the

PLAY button of the operation switches of the main unit. If the color bar signal has been recorded in the VCR Unit, the playback screen becomes as shown below, but this is not a malfunction (BR-DV600).

Fig. 3-7-11

(4) After completing each adjustment item, click the “v” mark-

ing, then switch the set OFF.

(5) To cancel the adjutment, click the “G” marking.

Note: If another adjustment is started without clicking the

“v” marking, the previous adjustment cannot be stored in memory.

3-17

3-16

No. Item

instruments & Input signals

3.7.7 Servo Circuit Adjustment

Measuring

PB switching

point

• Alignment tape MC-1, color bar

adjustment

HID

SPA

126 ± 10µs

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

Automatic adjustment

+ Adjustment is per-

formed automatically so that the timings of HID and SPA signals are as shown below.

Adjustment procedure

(1) Click [PB Switching Point (Auto)]. (2) Click [OK] to start automatic adjustment. (3) Message “Complete” is displayed when the

adjustment has completed successfully. If it is unsuccessful, the message “Adjustment failed” is displayed; try adjustment again.

“Complete” message

“failed” message

3-18

3-17

No. Item

3.7.8 RF Circuit Adjustment

REC current

adjustment

Measuring instruments & Input signals

• Internal Color bars (100%)

• Oscilloscope

REC

Mode

Measuring point Adjustment parts Adjustment level

* TP REC MON

(connector cable)

6Ch

+ 440 ± 20 mVp-p

(*) (-) (+)

Note: Connect TP to the section indicated [REC

(1) Click [REC Current]. (2) Click the [OK] button. (3) Adjust “New value” (address “6Ch”) so that

the level becomes the adjustment level.

(4) After adjustment, click the “v” marking and set

the power button of the set to OFF.

Adjustment procedure

MON] on the jig connector in advance.

VCO center

frequency adjustment

• Internal Color bars (100%)

•

Digital voltmeter

REC

↓

* TP VCO DC

(connector cable)

6Ah

+ 1.925 ± 0.025 V

(1) Click [VCO Center Frequency]. (2) Click the [OK] button. (3) Play the tape section containing color bars. (4) Adjust “New value” (address “6Ah”) so that

the level becomes the adjustment level.

(5) After adjustment, click the “v” marking and set

the power button of the set to OFF.

3-19

3-18

No. Item

Measuring instruments & Input signals

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

Adjustment procedure

PB EQ

(Error rate) adjustment

• Internal color bars (100%)

• PC

Start

Error Timing : 68h

Slice Level : 69h

1 + D Delay : 67h

PLL Phase : 6Bh

α : 63h

Error Timing : 68h

β : 64h

α : 63h

Error Timing : 68h

Error Rate Check

End

• REC

↓

•

VITERBI : OFF

PC monitor

68 h, 69h, 67h, 6Bh, 63h, 64h

+ Minimize error rate

(Total less than 1000, and less than 500 at each channels )

Notes: • Use a new tape or non-used section of

tape in this adjustment.

• Be sure to clean the head before this adjustment.

• It takes about 1 second from the data change to its reflection in the error rate.

• Also measure the error rate after the “Sync Block” monitor has become per-

fectly OK.

• If the adjustment within specification is not possible, clean the head. If the next adjustment is still out of specification, use another tape.

(1) Click [PB EQ (Error rate)]. (2) Click the [OK] button. (3) Adjust “New value” of each address to mini-

mize the error rate, by following the order shown in the flow chart.

(4) After adjustment, click the “v” marking and set

the power button of the set to OFF.

START

2.4.3 Head cleaning

Is error rate within

specification?

2.4.3 Head cleaning

Is error rate within

specification?

Replace tape.

Is error rate within

specification?

2.12 Interchangeability Adjustment

Is error rate within

specification?

Drum failer or

RF circuit failer

END

3-20

3-19

To START

No. Item

3.7.9 Video Circuit Adjustments

D/A Y level

adjustment

Measuring instruments & Input signals

• Internal color bars (100%)

• Oscilloscope

Mode

EE (With PLAY lit on the set)

Measuring point Adjustment parts Adjustment level

Y OUT (75 Ø terminated)

76h

+ 1.00 ± 0.05 Vp-p

(*) (-) (+)

(1) Click [D/A Y Level]. (2) Click the [OK] button. (3) Press the “PLAY” button of the set and check

that the LED lights up.

(4) Adjust “New value” (address “76h”) so that

the Y level becomes the adjustment level.

(5) After adjustment, click the “v” marking and

set the power button of the set to OFF.

Adjustment procedure

D/A C level

adjustment

• Internal color bars (100%)

• Oscilloscope

EE (With PLAY lit on the set)

C OUT (75 Ø terminated)

60h

NTSC 0.286 ± 0.01 Vp-p PAL 0.30 ± 0.01 Vp-p (Burst)

(1) Click [D/A C Level]. (2) Click the [OK] button. (3) Press the “PLAY” operation button of the set

and check that the LED lights up.

(4) Adjust “New value” (address “60h”) so that

the burst level becomes the adjustment level.

(5) After adjustment, click the “v” marking and

set the power button of the set to OFF.

3-21

3-20

No. Item

3.7.10 Audio Circuit Adjustment

(Note)

• Perform the audio circuitry adjustments immediately after turning the main unit ON. Be sure to turn the main unit OFF after completing each adjustment item.

Measuring instruments & Input signals

Mode

Measuring point Adjustment parts Adjustment level

(*) (-) (+)

Adjustment procedure

Fs PLL (48k)

adjustment

Fs PLL (44.1k)

adjustment

• No signal

• Frequency

counter

• No signal

• Frequency

counter

EE *

TP FS PLL (connector cable)

62h

+ 12.288 ± 0.020 MHz

TP FS PLL (connector cable)

FCh

11.2896 ± 0.110 MHz

(1) Click [Fs PLL (48k)]. (2) Click the [OK] button. (3) Adjust “New value” (address “62h”) so that

the frequency level becomes the adjustment level.

(4) After adjustment, click the “v” marking and

set the power button of the set to OFF.

(1) Click [Fs PLL (44.1k)]. (2) Click the [OK] button. (3) Adjust “New value” (address “FCh”) so that

the frequency level becomes the adjustment level.

(4) After adjustment, click the “v” marking and

set the power button of the set to OFF.

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Fs PLL (38k) adjustment

• No signal

• Frequency

counter

EE *

TP FS PLL (connector cable)

FDh

+ 8.192 ± 0.080 MHz

(1) Click [Fs PLL (38k)]. (2) Click the [OK] button. (3) Adjust “New value” (address “FDh”) so that

the frequency level becomes the adjustment level.

(4) After adjustment, click the “v” marking and

set the power button of the set to OFF.

3.7.11 Error Rate Monitoring

The error rate-monitoring screen is displayed when the PB EQ is adjusted or the error rate is measured. The screen shows the error rate every second during PB EQ adjustment. With the error rate measurement, it shows the error rate measurement result after about 20 seconds of measurement.

(1) Error Rate Monitoring

The following screen appears when [ Rate Monitor] tab is clicked.

View] under the [Error

3.7.12 ROM Tools

This section describes the seven functions of the ROM Tools in processing the EEPROM data.

12 34

5 6

Fig. 3-7-12 (Error Rate Monitoring Screen)

Error rate display window

Shows the error rate per video/audio or CH-1/CH-2 as well as the total error rate.

Sync block counter display window

Shows the amount of sync blocks played by the head as a percentage. When it reaches 100%, “OK” is displayed and a graph is displayed bule. The error rates are measured when this display shows “OK”.

Error rate measurement status display window

Depending on the load to the PC, “CH1 Reset” or “CH2 Reset” may be displayed frequently. In such a case, leave the PC idle (without operating the mouse, etc.). The error rates are measured when “Reset” is not displayed (when “CH1 Detect” or “CH2 Detect” is displayed).

(2) Error Rate Measurement

The following screen appears when [

Check] tab is clcked. To start the measurement, click

Rate [Start] button. After a while the measurement result is displayed “1”.

View] under the [Error

Fig. 3-7-14

File reading

Read the ROM data saved in the PC files. It is provided as standard with the adjustment software, for use as initial data. When the PC files are read, the file names are displayed in the ROM file display window.

File saving

The ROM data read by the ROM Tools can be saved in a PC file. This function is used for temporary backup of ROM data before adjustment. If the adjustment fails and the data becomes erroneous, use the backup to restore the original data.

Data read from VCR

The ROM data in the VCR can be read. The ROM file display window shows “Current VCR data” in this case.

Data write in VCR

The ROM data read by the ROM Tools can be written in the VCR. When the initial data is written, it is required to readjust the DV circuit and re-set the IEEE1394 ID (see 3.7.13).

Data comparison

Note: When the ROM data is written in the VCR, be sure

to turn the main unit and adjustment software OFF once.

The ROM data read by the ROM Tools is compared with data contained in a PC file or with the VCR data, and any differences are displayed in red characters. “Comp. value” shows the data used in the comparison. It shows “(“ when the comparison data does not exist. To cancel comparsion, clik

Data editing

The ROM data read by the ROM Tools can be edited on a per-address basis. To edit data, click the [New value] of the required address data. To write the data in the VCR, click the

“V” marking. To cancel editting, click the “

Data output

The ROM data read by the ROM Tools can be output at a printer or as a text file.

” marking.

Fig. 3-7-13 (Error Rate Measurment)

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3.7.13 IEEE1394 ID Setting

The GY-DV500 stores the ID in the format specified by the IEEE1394 standard in the EEPROM (IC103 on DV Main board). After replacing the EEPROM or the DV Main board, it is required to re-set the ID. The setting is possible with either of the methods outlined below.

1. Setting by manual input

(1) Under the [

[

IEEE1394 ID Setting]. The window as shown below appears.

Option] tab of the adjustment software, click the

3.7.14 Active Head Cleaner Adjustment Mode

When adjusting the installation position of the active head cleaner, use this mode to force the active head cleaner ON for a certain period. (See subsection 2.7 No. 20 for the adjustment procedure.)

(1) Under the [

justing...]. The window as shown below appears.

Adjustment] tab, click [Active Head Cleaner Ad-

Fig. 3-7-16

Fig. 3-7-15

(2) The ID (“ID : 0401xxxx” : NTSC, “ID : 0481xxxx” : PAL) is

indicated on the ID label number attached to the DV Main board. Input characters corresponding to “0401xxxx” for NTSC or “0481xxxx” for PAL.

(3) Click “Write” to write the ID in the EEPROM.

2. Setting with ROM Tools

(1) Read the data saved in the EEPROM to be replaced. (See

3.7.12.

3.)

(2) Save the read data in a PC file. (See 3.7.12. (3) After the EEPROM replacement, connect the adjustment

software to the GY-DV500. (4) Load the data saved in the PC file. (See 3.7.12. (5) Write the loaded data in the EEPROM. (See 3.7.12. (6) Now that the adjustment data in the new EEPROM has been

overwritten by the data in the previous EEPROM. Re-adjust

the DV circuit as required.

2.)

1.)

4.)

(2) Click [ (3) Click [

(4) Adjust the installation position as described in the adjust-

START] to set to “REC PAUSE” mode.

ACH ON]. The active head cleaner will turn on in about

3 seconds.

ment procedure.

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VICTOR COMPANY OF JAPAN, LIMITED

Printed in Japan

(S)

JVC GY-DV500E, GY-DV500U Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual