JVC GR-FX17EK, GR-FX17EX, GR-FX17EY, GR-FX17EZ, GR-SX170AG Service Manual

SERVICE MANUAL

COMPACT VHS CAMCORDER

YF06920052

GR-FX17EK, GR-FX17EX,

GR-FX17EY, GR-FX17EZ,

GR-SX27EZ, GR-SX170AG

VHS
PAL

625

GR-FX17EK, GR-FX17EX,
GR-FX17EY, GR-FX17EZ[M5A6B2]
GR-SX27EZ,GR-SX170AG[M5C6B2]

For disassembling and assembling of MECHANISM ASSEMBLY, refer to the SERVICE MANUAL No.86700 (MECHANISM ASSEMBLY).

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YF069

2005/2

SPECIFICATION

General Format S-VHS (GR-SX27EZ,GR-SX170AG only) / VHS PAL standard

Power source DC 11 V (Using AC Adapter)

DC 6 V (Using battery pack)

Power consumption Viewfinder on 3.5 W

Signal system PAL-type

Video recording system Luminance FM recording

Colour Converted sub-carrier direct recording Conforms to VHS standard

Cassette / cassette

Tape speed SP 23.39 mm/sec.

LP 11.70 mm/sec.

Recording time (max.) SP 60 minutes

LP 120 minutes (with EC-60 cassette)

Operating temperature 0°C to 40°C

Operating humidity 35% to 80%

Storage temperature -20°C to 50°C

Weight Approx. 690 g

Dimensions (W × H × D) 75 mm × 124 mm × 221 mm

Pickup 1/6" format CCD

Lens F1.8 f = 2.2 mm to 55 mm 25:1 power zoom lens with auto iris and macro con-

trol filter diameter 40.5 mm

Viewfinder Electronic viewfinder with 0.24" black/white LCD

White balance adjustment Auto/Manual adjustment

Connectors Video 1 V (p-p), 75 Ω unbalanced, analogue output (via Video output connector)

Audio 300 mV (rms), 1 kΩ, analogue output (via Audio output connector)

AC Adapter

Power requirement AC 110 V to 240 V~, 50 Hz/60 Hz
Output DC 11 V, 1 A

Specifications shown are for SP mode unless otherwise indicated. E & O.E. Design and specifications subject to change without notice.

1-2 (No.YF069)

SECTION 1

r

e

PRECAUTION

1.1 SAFTY PRECAUTIONS

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

1.1.1 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 symbol and shaded ( ) parts

are critical for safety.
Replace only with specified part numbers.

NOTE :

Parts in this category also include those specified to
comply 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:

• Wires covered with PVC tubing

• Double insulated wires

• High voltage leads

(5) Use specified insulating materials for hazardous live parts.

Note especially:

• Insulation Tape

• PVC tubing

•Spacers

• Insulation sheets for transistors

•Barrier

(6) When replacing AC primary side components (transformers,

power cords, noise blocking capacitors, etc.) wrap ends of
wires securely about the terminals before soldering.

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.

(12) Crimp type wire connectorIn such cases as when replacing

the power transformer in sets where the connections
between the power cord and power trans former 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.

• Connector part number :E03830-001

• Required tool : Connector crimping tool of the proper
type which will not damage insulated parts.

• Replacement procedure

a) 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.1-1-3

b) Strip about 15 mm of the insulation from the ends

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

15 mm

Fig.1-1-4

c) Align the lengths of the wires to be connected.

Insert the wires fully into the connector.

Metal sleeve

Fig.1-1-1

(7) Observe that wires do not contact heat producing parts

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

(8) Check that replaced wires do not contact sharp edged or

pointed parts.

(9) When a power cord has been replaced, check that 10-15

kg of force in any direction will not loosen it.

Power cord

Fig.1-1-2
(10) Also check areas surrounding repaired locations.
(11) Products using cathode ray tubes (CRTs)In regard to such

products, the cathode ray tubes themselves, the high
voltage circuits, and related circuits are specified for
compliance with recognized codes pertaining to X-ray

Connector

Fig.1-1-5

d) As shown in Fig.1-1-6, 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.

1.2
5

2

.0

5.5

Crimping tool

Fig.1-1-6

e) Check the four points noted in Fig.1-1-7.

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. cente

of metal sleev

Conductors extended

Fig.1-1-7

(No.YF069)1-3

1.1.2 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 Fig.1-1-11 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 Fig.1-1-11 below.

d

Chassis

d'

Power cord
primary wire

Fig.1-1-8

(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 Fig.1-1-9
and following Fig.1-1-12.

ab

Externally
exposed
accessible part

Z

V

c

A

Fig.1-1-9

(5) Grounding (Class 1 model only)

Confirm specified or lower grounding impedance between
earth pin in AC inlet and externally exposed accessible
parts (Video in, Video out, Audio in, Audio out or Fixing
screw etc.).Measuring Method:
Connect milli ohm meter between earth pin in AC inlet and
exposed accessible parts. See Fig.1-1-10 and grounding
specifications.

AC inlet

Earth pin

Exposed accessible part

MIlli ohm meter

Grounding Specifications

Region

USA & Canada

Europe & Australia

Grounding Impedance (Z

Z 0.1 ohm

Z 0.5 ohm

)

Fig.1-1-10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

110 to 130 V

200 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Insulation Resistance (R

R 1 M /500 V DC

1 M R 12 M /500 V DC

R 10 M /500 V DC

)

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 minute

AC 1 kV 1 minute
AC 3 kV 1 minute

AC 1.5 kV 1 minute

(

Class

(

Class

Clearance Distance (d), (d'

d, d' 3 mm

d, d' 4 mm

d, d' 3.2 mm

d 4 m m

)

d' 8 m m (Power cord
d' 6 m m (Primary wire

)

Fig.1-1-11

AC Line Voltage

100 V

110 to 130 V

110 to 130 V

220 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Load Z

1

0.15

1.5

2

50

Leakage Current (i)

i 1 mA rms

i 0.5 mA rms

i 0.7 mA peak
i 2 mA dc

i 0.7 mA peak
i 2 mA dc

a, b, c

Exposed accessible parts

Exposed accessible parts

Antenna earth terminals

Other terminals

Fig.1-1-12

NOTE :

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

)

)

)

1-4 (No.YF069)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 DIFFERENCE LIST

The following table indicate main different points between models GR-FX17EK, GR-FX17EX, GR-FX17EY, GR-FX17EZ, GR­SX27EZ and GR-SX170AG.

MODEL GR-FX17EK GR-FX17EX GR-FX17EY GR-FX17EZ GR-SX27EZ GR-SX170AG

TAPE FORMAT VHS-C VHS-C VHS-C VHS-C S-VHS-C S-VHS-C

AC CORD NO NO NO NO NO CEE PLUG

CASSETTE ADAPTER OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL

CABLE ADAPTER

YES(WITHOUT

S TERMINAL)

YES(WITHOUT

S TERMINAL)

YES(WITHOUT

S TERMINAL)

YES(WITHOUT

S TERMINAL)

YES(WITHOUT

S TERMINAL)

PROVIDE

(C-P8U)

NO

(No.YF069)1-5

SECTION 3

DISASSEMBLY

3.1 BEFORE ASSEMBLY AND DISASSEMBLY

3.1.1 Precautions

• Be sure to disconnect the power supply unit prior to mounting
and soldering of parts.

• Prior to removing a component part that needs to disconnect
its connector(s) and its screw(s), first disconnect the wire(s)
from the connector(s), and then remove the screw(s).

• When connecting/disconnecting wires, pay enough attention
not to damage the connectors.

• When inserting the flat wire to the connector, pay attention to
the direction of the flat wire.

• Be careful in removing the parts to which some spacer or
shield is attached for reinforcement or insulation.

• When replacing chip parts (especially IC parts), first remove
the solder completely to prevent peeling of the pattern.

• Tighten screws properly during the procedures. Unless
specified otherwise, tighten screws at a torque of 0.196N

·cm). However, 0.196N·m (2.0kgf·cm) is a value at the

(2.0kgf
time of production. At the time of service, perform the
procedure at a torque 10% less than 0.196N

·m (2.0kgf·cm).

(See "SERVICE NOTE" as for tightening torque.)

3.1.2 Destination of connectors

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: Wire: Flat wire : Board to board (B-B)

: The connector of the side to remove

CONN. No. PIN No.CONNECTOR

CN2a

CN2b

MAIN CN101

MAIN CN103

MONI/ BW CN761

MIC CN762

3.1.3 Disconnection of connectors (Wires)

Wire

· Pull both ends of the connector in the arrow
direction, remove the lock and disconnect the flat
wire.

B-B Connector

B-B Connector

· Pull the both ends of the board in the direction of the arrow, and remove the B-B Connector.

FPC Connector

· Extend the locks in the direction of the arrow for
unlocking and then pull out the wire. After
removing the wire, immediately restore the locks
to their original positions because the locks are
apt to come off the connector.

Wire

FPC Connector

Lock

B-B Connector

Fig.3-1-1

3.1.4 Tools required for disassembly and assembly

Torque driver

YTU94088

Chip IC replacement jig

PTS40844-2

Bit

YTU94088-003

Cleaning cloth

KSMM-01

Tweezers

P-895

·m

40

2

• Torque driver

Be sure to use to fastening the mechanism and exterior parts
because those parts must strictly be controlled for tightening
torque.

• Bit

This bit is slightly longer than those set in conventional torque
drivers.

• Tweezers

To be used for removing and installing parts and wires.

• Chip IC replacement jig

To be used for replacement of IC.

• Cleaning cloth

Recommended cleaning cloth to wipe down the video heads,
mechanism (tape transport system), optical lens surface.

3.2 ASSEMBLY AND DISASSEMBLY OF MAIN PARTS

3.2.1 Assembly and disassembly

When reassembling, perform the step(s) in reverse order.

STEP

No.

[1]
[2]

[8]

PART

TOP COVER ASSY
UPPER ASSY
(Inc. VF ASSY,
SPEAKER/MONITOR)
VF ASSY

(∗1) Order of steps in Procedure

When reassembling, preform the step(s) in the reverseorder.
These numbers are also used as the identification (location)
No. of parts Figures.

(∗2) Part to be removed or installed.
(∗3) Fig. No. showing Procedure or Part Location.

C = CABINET

(∗4) Identification of part to be removed, unhooked, unlocked,

released, unplugged, unclamped or unsoldered.

S = Screw
L = Lock, Release, Hook
SD = Solder
CN = Connector

[Example]

• 4 (S1a) = Remove 4 S1a screws.

• 3 (L1a) = Disengage 3 L1a hooks.

• 2 (SD1a) = Unsolder 2 SD1a points.

• CN1a = Remove a CN1a connector.

(∗5) Adjustment information for installation.

Fig.
No.

Fig.C1
Fig.C2-1

Fig.C2-2

POINT

S1,2(L1)
S2a,2(S2b),3(S2c)
2(S2d),S2e,S2c
L2,CN2a,b
2(S8),L8,CN8a

( 4) ( 5)( 2) ( 3)( 1)

NOTE

-

-

NOTE 8a
NOTE 8b

1-6 (No.YF069)

Fig.3-1-2

3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS

zDisassembly procedure

STEP

PART NAME

No.

[1]

CASE COVER(S) ASSY

[2]

LOWER CASE ASSY

[3]

TOP COVER ASSY
(Inc.TOP BOARD ASSY,VF ASSY)

[4]

TOP BOARD ASSY

[5]

VF ASSY

[6]

UPPER CASE(S) ASSY

[7]

FRONT COVER ASSY
Inc. MIC

[8]

FRONT BOARD ASSY

[9]

MIC

[10]

FRONT FRAME SA

[11]

MAIN BOARD ASSY

[12]

OP FRAME ASSY

[13]

BRACKET OP ASSY

[14]

OP BLOCK ASSY

[15]

SIELD CASE(MAIN)

[16]

MECHANISM ASSY

[17]

REAR BOARD ASSY

[18]

FRAME ASSY

Fig.
No.

FA1

S1,2(L1)

FA2

7(S2),CN2
S3a,S3b,CN3a, CN3b

2(S4)
3(S5)

FA3

6(S6a),S6b,L6

FA4

CN7,S7,L7a,L7b

S8
S9
2(S10)

FA5

CN11a, b, c, d, e, f, g, h, 2(S11),
CN11j,L11

FA6

2(S12a), S12b
S13

-

FA7

S15a, S15b
2(S16a),S16b

FA8

2(S17)

-

POINT NOTE

-

-

-

­NOTE5
NOTE6

NOTE7a,b

-

-

NOTE10

-

-

-

NOTE14
NOTE15

-

-

-

zDestination of connectors

CN.NO.

CN2 MAIN CN13 ZOOM UNIT - 14

CN3a MAIN CN7301 B/W VF ASSY CN7401 14

CN3b MAIN CN18 TOP CN401 6

CN7 MAIN CN8 MIC - 2

CN11a MAIN CN3 CAPSTAN MOTOR - 18

CN11b MAIN CN7 A/C HEAD - 11

CN11c MAIN CN22 CCD CN5301 14

CN11d MAIN CN15 OP BLOCK ASSY - 24

CN11e MAIN CN4 LOADING MOTOR - 2

CN11f MAIN CN1 DRUM_MOTOR - 10

CN11g MAIN CN5 HEAD(VIDEO,FLY.E) - 11

CN11h MAIN CN2 SENSOR - 14

CN11j MAIN CN28 REAR_UNIT - 10

NOTE 5 :

For disassembly of the [5] VF ASSEMBLY, refer to 3.2.3 AS­SEMBLY/DISASSEMBLY OF [5] VF ASSEMBLY .

NOTE 6 :

Take care not to break or damage the FRAME.

NOTE 7a :

Take care not to damage the OP BLOCK ASSEMBLY when
and after the FRONT CASE ASSEMBLY is removed.

NOTE 7b :

Attachment of the WIRE

NOTE10 :

Screwing sequence should be in order here first and others.

NOTE 14 :

For disassembly of the CCD BOARD ASSEMBLY, refer to

3.2.4 ASSEMBLY/DISASSEMBLY OF [14]OP BLOCK AS­SEMBLY AND CCD BOARD ASSEMBLY.

NOTE 15 :

When attaching the MECHANISM ASSEMBLY to S.CASE
(MAIN), pull out the FPC CABLE not to be inserted between
the MECHANISM ASSEMBLY and S.CASE (MAIN).

CONNECTOR

PIN
NO.

(No.YF069)1-7

aa

1

(S1)

[1]

<BOTTOM SIDE>

L3a

[5]

NOTE5

15

(S5)

14

(S5)

(S4)

<BOTTOM SIDE>

6

15

14

L5a L5b

13

(S5)

12

(S4)

11

54

13

11

L4

[4]

FFC WIRE

C.COVER INSIDE

12

OP BLOCK
ASSY

L4

10

(S3b)

Fig.FA1

L3b

A

B

CN3a

b

b

CN2

a

[3]

CN3b

dc

c

9

(S3a)

8

(S2)

a

u

t

6

(S2)

aa

L1

[2]

B

A

7

(S2)

5

(S2)

2

(S2)

3

(S2)

4

(S2)

1-8 (No.YF069)

Fig.FA2

NOTE6

[6]

C

17

(S6a)

B

22

(S6b)

C

B

18

(S6a)

19

(S6a)

: 0.118N.m (1.2kgf.cm)

26

(S10)

27

(S10)

NOTE10

20

(S6a)

[10]

A

21

(S6a)

NOTE7a

Fig.FA3

L7a

L6

23

(S7)

A

16

(S6a)

[7]

[9]

25

(S9)

[8]

SHIELD

24

(S8)

a

CN7

a

SHIELD SHEET
SHOULD BE
PUTTED SHIELD
PLATE BETWEEN
FRAME TO MECHA .

L7b

<WIREING>

FOIL SIDE(B)

NOTE7b

PASS THE WIRE
OUTSIDE OF
THIS BOSS .

MIC WIRE

Fig.FA4

(No.YF069)1-9

a

38

(S16b)

[16]

[11]

c

L11

d

b

SHIELD

e

f

g

h

j

CN11j

CN11h

Fig.FA5

CN11b

CN11a

CN11c

CN11f

CN11g

29

(S11)

CN11d

CN11e

28

(S11)

38

(S16b)

L15

A

AA

37

(S16a)

Fig.FA7

36

(S16a)

NOTE15

[15]

34

(S15a)

35

(S15b)

[13]

[14]

NOTE14

32

(S12b)

31

(S12a)

(S12a)

30

Fig.FA6

33

(S13)

[12]

39

(S17)

40

(S17)

[17]

[18]

Fig.FA8

1-10 (No.YF069)

3.2.3 ASSEMBLY/DISASSEMBLY OF [5] VF ASSEMBLY

zPrior to disassembly

VF ASSEMBLY mainly consists of two CABINET PARTS (UP­PER CASE (VF)/ BOTTOM CASE (VF)), and LCD SA/LENS
SA inside.
As LCD SA and LENS SA are each consist of several parts,
disassemble as required during the procedure.

zDisassembly procedure

STEP

PART NAME

No.

[1]

UPPER CASE(VF)
/BOTTOM CASE(VF)

[2]

VF BRACKET ASSY

[3]

LENS SA/LCD SA
/BWVF BOARD ASSY

[4]

LENS SA

[5]

LCD SA

Fig.
No.

2(S5a),2(S5b),2(L5a),2(L5b)

VF1,2

2(S5c)

VF3

L5c,d,CN5a,2(L5e),2(L5f)

VF4

L5g,L5h,L5j

VF5

L5k,L5m,L5n,L5p

POINT NOTE

NOTE 5a :

Follow the wiring of the LCD MODULE FPC as shown in the
Fig.VF1, and be sure to place the FPC within the BOTTOM
CASE.

NOTE 5b :

Place the SUPPORT PLATE inside the BOTTOM CASE.

NOTE 5c :

Refer to the Fig. VF5 for the LENS SA disassembly.

NOTE 5d :

Refer to the Fig. VF5 for the LCD SA disassembly.

NOTE 5e :

During the procedure, be careful in handling the parts.

NOTE 5f :

When attaching the LEVER VF, be careful in positioning with
the LENS ASSY.
Attach the LEVER VF by pulling the LENS ASSY to the EYE
CUP side.
After the attachment, check whether the slide operation is
smooth.

NOTE 5g :

When disassembling, be sure not to lose any parts.

NOTE5a,b

-

NOTE5c,d

NOTE5e,f,g

NOTE5e

(No.YF069)1-11

1

(S5a)

L5a

a

NOTE5b

UPPER CASE
(VF)

L5b

b

2

(S5a)

LCD SA
/LENS SA

5

(S5c)

6

(S5c)

BOTTOM
CASE(VF)

a

: 0.098N.m (1.0kgf.cm)

<NOTE5a,b>

SUPPORT PLATE

NOTE5a

b

3

(S5b)

Fig.VF1

NOTE5b

<TOP VIEW>

BOTTOM CASE
(VF)

4

(S5b)

VF BRACKET
ASSY

: 0.098N.m (1.0kgf.cm)

Fig.VF3

NOTE5c

LENS SA

NOTE5e

LCD SA

L5e

L5c

BWVF BOARD ASSY

1-12 (No.YF069)

<SIDE VIEW>

Fig.VF2

NOTE5a

L5d

L5f

CN5a

FPC

Fig.VF4

<LENS SA>

NOTE5f

LEVER(VF)

GUIDE(LENS)

L5h

NOTE5e,f

LENS ASSY

NOTE5g

COMPRESSION SPRING

<LCD SA>

CASE(B.LIGHT)

SHEET(DIFF)

SHEET(POLA.1)

CUSHION(LCD)

L5g

NOTE5e

NOTE5e

SHAFT(VF)

HOLDER(EYE)

L5j

NOTE5e

SHEET(LENS)

EYE CUP

NOTE5e

LCD MODULE

GUIDE(LCD)

HOLDER(LCD)

STOPER(POLA)

NOTE5e

SHEET(POLA.2)

L5p

L5n

L5m

L5k

Fig.VF5

(No.YF069)1-13

3.2.4 ASSEMBLY/DISASSEMBLY OF [14]OP BLOCK ASSEMBLY AND CCD BOARD ASSEMBLY

zPrecautions

(1) Take care in handling the CCD IMAGE SENSOR, OP

LPF and lens components when performing mainte­nance etc., especially with regard to surface contamina­tion, attached dust or scratching. If fingerprints are
present on the surface they should be wiped away using
either a silicon paper, clean chamois or the cleaning
cloth.

(2) The CCD IMAGE SENSOR may have been shipped with

a protective sheet attached to the transmitting glass.
When replacing the CCD IMAGE SENSOR, do not peel
off this sheet from the new part until immediately before
it is mounted in the OP BLOCK ASSEMBLY.

(3) The orientation of the OP LPF is an important factor for

installation. If there is some marking on the OP LPF, be
sure to note it down before removing and to reassemble
it very carefully as it was referring to the marking.

zDisassembly of CCD BOARD ASSEMBLY and CCD BASE

ASSEMBLY

(1) Unsolder the CCD BOARD ASSEMBLY by the 14 points

(SD14a) and then remove it.

(2) Remove the two screws (1, 2) and remove the CCD

BASE ASSEMBLY.
(3) Remove the SPACER.
(4) Remove the SHEET.
(5) Remove the OP LPF.

zAssembly of CCD BASE ASSEMBLY and CCD BOARD AS-

SEMBLY

(1) Set the OP LPF to the OP BLOCK ASSEMBLY so that

the OP side touches the OP BLOCK ASSEMBLY.

NOTE 14a:

Pay careful attention to the orientation of the OP LPF.

(2) Set the SHEET to the OP LPF not to come off the right

position.
(3) Attach the SPACER to the OP BLOCK ASSEMBLY.
(4) Fasten them together with the two screws (1, 2).
(5) Set the CCD BOARD ASSEMBLY in the CCD BASE AS-

SEMBLY, and then solder it by the 14 points (SD14a).

zReplacement of service repair parts

The service repair parts for the OP BLOCK ASSEMBLY are as
listed below.
Before replacement of these parts, remove the BRACKET (OP
BLOCK ASSEMBLY) as required.
Take special care not to disconnect any of the FPC wires or
cause any damage due to soldering (excessive heating).

(1) FOCUS MOTOR
(2) ZOOM MOTOR
(3) IRIS MOTOR UNIT

NOTE 14b:

When replacing the FOCUS MOTOR or the ZOOM MO­TOR, solder the FPC at a space of about 1 mm above the
terminal pin.

NOTE 14c:

The IRIS MOTOR UNIT includes the FPC ASSEMBLY and
two sensors.

(S14b)

7

(S14b)

SD14b

SENSOR

OP BLOCK
ASSY

8

9

(S14b)

10

(S14b)

NOTE14b,c

IRIS MOTOR UNIT

11

(S14b)

SD14b

5

(S14b)

(S14b)

(S14b)

3

NOTE14b

FOCUS MOTOR

6

4

(S14b)

SHEET

ZOOM MOTOR

NOTE14b

SPACER

Blue

OP

side

0.078N࡮m (0.8kgf࡮cm)
0.118N࡮m (1.2kgf࡮cm)

SD14a

2

(S14a)

CCD BASE ASSY

NOTE14a

OP LPF

CCD

side

1

(S14a)

CCD
BOARD ASSY

1-14 (No.YF069)

Fig.3-2-4

SECTION 4

ADJUSTMENT

4.1 PREPARATION

4.1.1 Precaution

Camera system and deck system of this model are specially
adjusted by using PC.
However, if parts such as the following are replaced, an
adjustment is required. The adjustment must be performed in a
Service Center equipped with the concerned facilities.

• EEP ROM (IC102 of MAIN board)

• OP BLOCK ASSEMBLY

• VF ASSEMBLY

In the event of malfunction with electrical circuits, first find a
defective portion with the aid of proper test instruments as shown
in the following electrical adjustment procedure, and then
commence necessary repair/ replacement/adjustment.

• In observing chip TP, use IC clips, etc. to avoid any stress.
Prior to replacement of chip parts (especially IC), remove the
solder completely to prevent peeling of the pattern.

• Use a patch cord if necessary. As for a patch cord, see the
BOARD INTERCONNECTIONS.

• Since connectors are fragile, carefully handle them in
disconnecting and connecting the FPC.

4.1.2 REQUIRED TEST EQUIPMENT

• Personal computer (for Windows)

• Color TV monitor

• Oscilloscope (dual-trace type, observable 100MHz or higher
frequency). The one observable 300 MHz or higher frequency
is recommended.

• Digital voltmeter

• DC power supply or AC adapter

• Frequency counter (with threshold level adjuster)

4.1.3 TOOLS REQUIRED FOR ADJUSTMENT

Alignment tape

MHPE-C

Roller driver

PTU94002-2

INF Adjustment Lens

YTU92001B

Light box Assembly

YTU93096A

Jig Connector Cable

YTU93082G

Alignment tape

MHPE-LC

Cleaning Cloth

KSMM-01

INF Adjustment Lens Holder

YTU94087

Gray Scale Chart

YTU94133A

PC Cable

QAM0099-005

Cassette torque meter

PUJ50431-2

YTU92001-111

Camera Stand

YTU93079

Color Bar Chart

YTU94133C

Communication Cable

YTU93107A

Conn. ring

(40.5)

Service Support System

YTU94057-83

• Alignment tape

To be used for check and adjustment of interchangeability of
the mechanism.
(Video: Color bar signal, Audio: Non-signal)

• Cassette torque meter

This is used to cheek the back tension and play torque during
mechanism adjustment.

• Roller driver

To be used to turn the Roller driver to adjustment of the linear­ity of playback envelope.

• Cleaning Cloth

Recommended the Cleaning cloth to wipe down the video
heads, mechanism (tape transport system), optical lens sur­face.

(No.YF069)1-15

• Conn. ring

The connector ring to attach the INF lens to the head of the OP
lens. For the usage of the Conn.ring.

• INF Adjustment Lens

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

• INF Adjustment Lens Holder

To be used together with the Camera stand (11) for operating
the Videocamera in the stripped-down condition such as the
status without the exterior parts or for using commodities that
are not yet conformable to the interchangeable ring. For the
usage of the INF lens holder, refer to the Service Bulletin No.
YA-SB-10035.

• Camera Stand

To be used together with the INF adjustment lens holder. For
the usage of the Camera stand, refer to the Service Bulletin
No. YA-SB-10035.

• Light box Assembly

To be used for adjustment of the camera system. For the us­age of the Light box assembly, refer to the Service Bulletin No.
YA-SB-10035.

• Gray Scale Chart

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

• Color Bar Chart

To be used for adjustment of the camera system. For the us­age of the INF adjustment lens, refer to the Service Bulletin
No. YA-SB-10035.

• Jig Connector Cable

To be connected to the Jig connector jack of the main board
and used for measurement and adjustment.

• PC Cable

To be used to connect the Videocamera and a personal com­puter with each other when a personal computer issued for ad­justment.

• Communication Cable

Connect the Communication cable between the PC cable and
Jig connector cable when performing a PC adjustment.

• Service Support System

To be used for adjustment with a personal computer. Software
can be downloaded also from JS-net.

4.2 JIG CONNECTOR CABLE CONNECTION

 Connection procedure

JIG CONNECTOR
CABLE

CN25

JIG CONNECTOR COMMUNICATION CABLE

TO 8 PIN

( RXD )

RED

TO 7 PIN

( TXD )

( GND )

WHITE

BLACK

SERVICE SUPPORT SYSTEM

RS232C

COM PORT

PERSONAL COMPUTER

MENU

TO 6 OR 16 PIN

Fig.4-2-1

 Jig connector diagrams

JIG CONNECTOR CABLE (YTU93082G)

MAIN CN25 JIG BOARD (LABEL)

AL_J3.2V 1 1 AL_J3.2V

MCU_RST 11 2 VIDL

VIDL 2 3 DIAL_PB

V_TP_FM 12 4 DIAL_MN

DIAL_PB 3 5 JIGCN_SW

V_FF 13 6 GND

DIAL_MN 4 7 TXD

ST/EJ_SW 14 8 RXD

JIGCN_SW 5 9 PLI_AD

PB_CTL 15 10 VPP_7.8V

GND 6 11 MCU_RST

GND 16 12 V_TP_FM

TXD 7 13 V_FF

V_OUT 17 14 ST/EJ_SW

RXD 8 15 PB_CTL

AO_SIG_J 18 16 GND

PLI_AD 9 17 V_OUT

V_OVL 19 18 AO_SIG_J

VPP_7.8V 10 19 V_OVL

DISCHG_L 20 20 DISCHG_L

COVER(JIG)

PC CABLE

1-16 (No.YF069)

Fig.4-2-2

4.3 MECHANISM COMPATIBILITY ADJUSTMENT

4.3.1 Tape transport adjustment

Mechanism adjustment is needed when DRUM ASSEMBLY or a
part of the tape transport system is replaced. To protect tapes
from damage, first clean the tape transport system, next confirm
that nothing is wrong with the tape transport system by using a
tape that can be disposed of, and then perform adjustment with
alignment tape. Some exterior parts should be removed before
some adjustment procedures, depending on the procedures.

BACK TENSION

0.93x10

-3

- 1.71x10-3 N•m

(10-17gf·cm)

PLAY TORQUE

1.47x10

-3

- 2.45x10-3 N·m

(15-25gf·cm)

POLE BASE (SUP)
(GUIDE ROLLER)

POLE BASE (TU)
(GUIDE ROLLER)

TU GUIDE
POLE

A/C HEAD
ASSEMBLY

TENSION
POLE

PINCH
ROLLER

Fig.4-3-1

4.3.2 Back tension

Remove the exterior parts attached to CASSETTE HOUSING
ASSEMBLY so that scales of CASSETTE TORQUE METER can
be read.

• CASE COVER(S) ASSEMBLY

• C. COVER INSIDE

Fig.4-3-3

4.3.3 Tape pattern

Remove the exterior parts attached to the UPPER CASE
ASSEMBLY so that the guide roller beside the DRUM ASSEMBLY
can be rotated.

• CASE COVER(S) ASSEMBLY

• LOWER CASE ASSEMBLY

• TOP COVER ASSEMBLY

• UPPER CASE (S) ASSEMBLY

NOTE:

In performing adjustment, it is recommended that LOWER
CASE ASSEMBLY and TOP COVER ASSEMBLY are at­tached to the main body for better operation and safety.

POLE BASE (TU)
(GUIDE ROLLER)

ALIGNMENT TAPE

CASSETTE TORQUE METER

Fig.4-3-2

(1) Set a cassette torque meter onto the deck and measure the

back tension in standard PB mode to confirm that the back
tension is 0.93x10

-3

- 1.71x10-3 N•m.

(2) If not, replace the tension band.

When the value widely fluctuates in the measurement,
replace the SUPPLY REEL DISK.

(3) With the CASSETTE TORQUE METER, confirm that the

play torque is 1.47x10

-3

- 2.45x10-3 N•m.

If necessary, replace the center pulley unit.

POLE BASE (SUP)
(GUIDE ROLLER)

JIG CONNECTOR CABLE
MAIN CN25 - JIG BOARD
12PIN(V_TP_FM)
13PIN(V_FF)

Fig.4-3-4
(1) Remove the Cover (JIG) shown on Fig.4-2-1.
(2) Connect the JIG CONNECTOR CABLE to CN25 on the

MAIN BOARD ASSEMBLY as shown on Fig. 4-2-2.

(3) Observe signal at V_TP_FM with external trigger from

V_FF on the JIG CONNECTOR CABLE.

(4) Playback the SP stairstep signal of the alignment tape and

maximize the FM waveform by the tracking button.

(5) Set the tracking control to the center position by simulta-

neously pressing the tracking (-) and (+) buttons and max­imize the FM waveform by the tracking button.

(6) If the observed FM waveform is not flat, adjust the height of

the SUPPLY of TAKE-UP GUIDE ROLLER with the roller
driver.

NOTE:

To prevent the tape from damage, turn the guide rollers
slowly.

(No.YF069)1-17

(7) By operating the tracking button (both in + and - directions)

in the manual tracking mode, vary the output level of the
FM waveform from maximum to minimum and vice versa to
confirm that the waveform varies nearly in a flat shape.

(8) When the FM waveform breaks in the level varying process,

subtly adjust the height of guide rollers at every breaking
point so that the waveform varies as flat as possible.
Repeat the above steps 6. and 7. several times to confirm
that the waveform is flat as a whole.

(9) Playback the SP stairstep signal of alighment tape and ad-

just the tracking control to maximize the FM waveform,
confirm that FM waveform variation is always flat.

(10) Record the signal and play it back in both of the SP and LP

modes, and confirm that the FM waveform is flat in both
modes.

NOTE:

Among the above-mentioned adjustment steps, the
items of No.9 and No.10 are needed for the LP model
only.

CH-2

1 field

FLATTEN WAVEFORM.

CAUSER BY WRONG HEIGHT
OF SUPPLY GUIDE ROLLER

CAUSED BY WRONG HEIGHT
OF TAKE-UP GUIDE ROLLER

4.3.4 A/C head height & azimuth

Remove the exterior parts attached to the UPPER CASE
ASSEMBLY so that the screws around the A/C HEAD
ASSEMBLY can be tighten or loosen.

• CASE COVER(S) ASSEMBLY

• LOWER CASE ASSEMBLY

• TOP COVER ASSEMBLY

• UPPER CASE (S) ASSEMBLY

• FRONT FRAME ASSEMBLY

NOTE:

In performing adjustment, it is recommended that LOWER
CASE ASSEMBLY and TOP COVER ASSEMBLY are at­tached to the main body for better operation and safety.
(1) Remove the Cover (JIG) shown on Fig.4-2-1.
(2) Connect the JIG CONNECTOR CABLE to CN25 on the

MAIN BOARD ASSEMBLY.

(3) Connect the channel-1 scope probe to the audio output

(AO_SIG_J) and connect the channel-2 scope probe to PB

CTL.
(4) Playback the alignment tape.
(5) Set the tracking to its center range by pressing the (+) and

(-) tracking controls simultaneously.
(6) Adjust screws [A] , [B] and [C] approximately 45 degrees

in the same direction to obtain maximum audio output and

CTL signal levels.
(7) As a final fine adjustment, adjust screw [B] for minimum

signal level fluctuation and screw [C] for maximum output

signal level.

Fig.4-3-5

CORRECT VARIATION OF WAVEFORM

BAD VARIATION OF WAVEFORM

Fig.4-3-6

(11) Through the above steps, confirm that there occur no wrin-

kling and damage in the tape around the PINCH ROLLER
and TU GUIDE POLE whenever the deck is in operation of
Loading/Unloading, Search Rewind and at mode change
from Search Rewind to play mode. If wrinkling or damage
in the tape occurs around the TU GUIDE POLE, adjust the
angle (slant) of the A/C HEAD to the tape. So that the tape
normally runs along the lower flange of the GUIDE POLE.

A/C HEAD

SCREW [A]

SCREW [C]

SCREW [B]

Fig.4-3-7

Audio
signal

Control
pulse
signal

1-18 (No.YF069)

Fig.4-3-8

4.3.5 Phase of control head (X value)

Note:

Remove the exterior parts attached to the UPPER CASE
ASSEMBLY so that the screws around the A/C HEAD
ASSEMBLY can be tighten or loosen.
(1) Connect the JIG CONNECTOR CABLE to CN25 on the

MAIN BOARD ASSEMBLY.

(2) Playback the SP stairstep signal of the alignment tape and

observe signal at V_TP_FM with external trigger from
V_FF on the JIG CONNECTOR CABLE.

(3) Operate the tracking button in the center and manual

tracking mode by pressing the tracking (+) and (-) buttons
and confirm that the FM output level is maximum at
the center position as shown in Fig. 4-3-10.

(4) If necessary, slightly loosen the setscrews [D] and [E] and

insert the Tweezers into the notch and guide hole to move
the A/C HEAD fully in the direction of the capstan to the
extent.

(5) Gradually move the A/C HEAD toward the drum to find the

position where the FM output level maximum for the first
time (A’ - B’ in Fig. 4-3-10).

(6) Fine adjust the phase of the A/C HEAD and tighten the

screws [D] and [E] at the point A.

A/C HEAD

SCREW [D]

FM OUTPUT

DIRECTION OF CAPSTAN

Fig.4-3-9

A
ADJUSTING
POINT

A/C HEAD PHASE

Fig.4-3-10

INSERT THE
TWEEZERS

SCREW [E]

B

MAX

ZERO

DIRECTION OF DRUM

(No.YF069)1-19

5.1 SERVICE NOTE

20 21 22

18 19

[18][15] [17][16]

SECTION 5

TROUBLESHOOTING

-

-

34 35 36 37 38 39 40

aaa

28 29 30 31 32 33 -

[9] [10] [12][11] [13] [14]

24 25 26 27

[8]

1234567891011121314151617

[1]

<3.2.2 CABINET PARTS>

FA1 FA2

[7]

23

a

-

[13]

b

1234 56

d

VF1 VF3

1234 56 7 8 91011

<3.2.4 OP BLOCK ASSY>

[4]

FA4 FA5 FA6 FA7 FA8

a

<3.2.3 VF ASSY>

3-2-4

bc

1-20 (No.YF069)

Symbol No. [2] [3] [4] [5] [6]

Reference drawing FA3

Place to stick screw

Screw tightening torque

Removing order of screw

Symbol No.

Reference drawing

Place to stick screw

Screw tightening torque

Removing order of screw

Reference drawing

Place to stick screw

Screw tightening torque

Removing order of screw

Reference drawing

Place to stick screw

Screw tightening torque

Removing order of screw

࡮There are setting limits of the torque value for the torque driver. If the value exceeds the setting value, take it as a rough measurement (reference value),

Prepare the specified screws and use them in place of the removed screws.

<NOTE>

㧝㧖 (This mark shows where to attach the screws) : Do not reuse the screws because the screw lock bond was applied to prevent the screws from loosening.

and tighten the screw manually.

㧞Tightening torque for the screws

a㧦 0.196N㨯m (2.0kgf㨯cm)ޓޓb㧦 0.118N㨯m (1.2kgf㨯cm) ޓޓc㧦 0.078N㨯m (0.8kgf㨯cm)ޓޓd㧦 0.098N㨯m (1.0kgf㨯cm)ޓޓ

࡮The specified torque value is a recommended value of the initial assembly. Therefore, set the value below the specified torque value in the assembling procedure.

Be careful not to break either the screws or the screw holes.

5.2 TAKE OUT CASSETTE TAPE

In the event that the set enters the emergency mode as it is
loaded with a cassette tape and the cassette tape cannot be
ejected with the EJECT button, manually, take it out of the set
according to the following procedure.

NOTE :

• If the mechanism comes into the unloading mode as the cas­sette tape is not held by hand, it results in tape damage.
(1) Disconnect the set from the power source.
(2) Remove the LOWER CASE ASSEMBLY and TOP COV-

ER ASSEMBLY (see Fig.FA2, page 8).

(3) Connect a jumper wire to each pole of the LOADING

MOTOR as shown by the magnified view (Fig. 5-2-1).

BATTERY

(DC1.5V)

(4) While holding down the cassette housing by hand, con-

nect the jumper wires to a battery to run the mechanism
to the EJECT position four unloading. If this unloading
operation is performed as the cassette housing is not
held down by hand, the front lid of the cassette may dam­age the tape when it is ejected.

(5) For taking in the slack of the tape, run the mechanism to

the EJECT position as the front lid of the cassette is left
open, and turn the TAKE-UP GEAR in the forward direc­tion to wind up the tape. After confirming that the tape
has completely been wound up and the supply reel is
idling, take the cassette tape out of the cassette housing.

MAGNIFIED VIEW

b

TAKE-UP GEAR

Fig.5-2-1

(No.YF069)1-21

5.3 EMERGENCY DISPLAY

Example (in case of the error number E01):

Whenever some abnormal signal is input to the mechacon CPU,
an error number (E01, as an example) is displayed in the elec­tronic view finder. In every error status, such the message as
shown below alternately appear over and over.

E01
UNIT IN

SAFEGUARD MODE

E01
REMOVE AND

REATTACH BATTERY

• In an emergency mode, all operations except turning on/off the
POWER switch are ineffectual.

E. VF Symptom Mode when observed

E07 Short circuit of capstan MDA Power ON

E06 CAPSTAN FG input absent CAPSTAN rotation

E04 DRUM FG input absent DRUM rotation

E03 SUPPLY REEL FG input absent REC, PLAY, SEARCH, FF/REW

E02 Mode control motor rotates for more than 7.5 sec UNLOADING without shift to next

UNLOADING

mode.

E01 Mode control motor rotates for more than 7.5 sec LOADING without shift to next mode. LOADING

E00 Overtime the programming transaction REC, PLAY

(PAL)

1-22 (No.YF069)

Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY CAMCORDER CATEGORY 12, 3-chome, Moriya-cho, kanagawa-ku, Yokohama, kanagawa-prefecture, 221-8528, Japan

(No.YF069)

Printed in Japan

VPT