JVC GR-SXM250US, GR-SXM750UC, GR-SXM755UC, GR-SXM755US, GR-SXM750US Service Manual

86721200302

SERVICE MANUAL

COMPACT VHS CAMCORDER

GR-SXM250US,GR-SXM750U

C

GR-SXM750US,GR-SXM755UC,GR-SXM755U

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

SPECIFICATION (The specifications shown pertain specifically to the model GR-SXM755)

Camcorder

General

Format : S-VHS/VHS NTSC standard
Power source : DC 11 V (Using AC Adapter)

Power consumption
Viewfinder on :4.5 W

LCD monitor on
Video light :3.0 W
Signal system :NTSC-type
Video recording system
Luminance : FM recording
Colour : Converted sub-carrier direct recording

Cassette : / cassette
Tape speed
SP : 33.35 mm/sec. (1-5/16 ips)
LP : 11.12 mm/sec. (7/16 ips)
Recording time (max.)
SP : 40 minutes
LP : 120 minutes (with TC-40 cassette)
Operating
temperature : 0ºC to 40ºC (32ºF to 140ºF)
Operating humidity : 35% to 80%
Storage temperature : -20ºC to 50ºC (-4ºF to 122ºF)
Weight : Approx. 870 g
Dimensions (W x H x D) : 113 mm x 117 mm x 199 mm

Pickup
Lens : F1.6, f = 2.7 mm to 43.2 mm,

Viewfinder : Electronic viewfinder with 0.5" black/white CRT
White balance

adjustment

DC 6 V (Using battery pack)

:5.0 W

Conforms to VHS standard

(4-1/2" x 4-5/8" x 7-7/8")

: 1/6" format CCD

16:1 power zoom lens with auto iris and
macro control, filter diameter 40.5 mm

: Auto/Manual adjustment

LCD monitor
Speaker

Connectors

Video : 1 V (p-p), 75 unbalanced, analog output
Audio : 300 mV (rms), 1 k , analog output

S-Video

Power requirement
U.S.A and Canada
Other countries : AC 110 V to 240 V ~, 50 Hz/60 Hz
Output : DC 11 V , 1 A

Optional Accessories

• Battery Packs BN-V12U, BN-V20U, BN-V400U

• Compact S-VHS (

• Compact VHS (

• Active Carrying Bag CB-V7U

• Cassette Adapter C-P7U

• A/V (Audio/Video) Cable

• S-Video cable

Some accessories are not available in some areas.
Please consult your nearest JVC dealer for details on accessories and
their availability.

: 3.5" diagonally measured, LCD
: Monaural

(via Video output connector)
(via Audio output connector)

: Y: 1 V (p-p), 75 , analog output

C: 0.29 V (p-p), 75 , analog output

AC Adapter

: AC 120 V ~, 60 Hz

) Cassettes ST-C-40/30/20

) Cassettes TC-40/30/20

S

GR-SXM250US,GR-SXM750UC,GR-SXM750US,GR-SXM755UC,GR-SXM755US M3C623,M3C643

COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.

No.86721

2003/02

TABLE OF CONTENTS

1 PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

1.1 SAFTY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

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

2.1 BEFORE ASSEMBLY AND DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-6

2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY . . . . . . . . . . . . . . . . . . . .1-10

2.4 ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEMBLY (CABINET PARTS) . . . . . . . . . . . . . . . . . . . . .1-12

2.5 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLYCCD BOARD ASSEMBLY

(CAMERA SECTION AND BOARD ASSEMBLY). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2.6 EMERGENCY DISPLAY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

2.7 AUTOMATIC DEMONSTRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-15

2.8 TAKE OUT CASSETTE TAPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-17

2.9 SERVICE NOTE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-18

3 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.2 TOOLS REQUIRED FOR ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-19

3.3 MECHANISM ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-21

3.4 ELECTRICAL ADJUSTMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-24

CHARTS AND DIAGRAMS

BOARD INTERCONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

CPU SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

M.MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-7

ASP SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9

DSP SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-11

F/Z/I/MDA SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

V OUT SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

TG/CDS SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17

REG SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-19

LCD SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-21

BW/VF SCHEMATIC DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-23

JACK SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-25

SPEAKER SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-27

MONITOR SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-29

E. VF CHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-31

TOP OPE UNIT, ZOOM UNIT, REAR UNIT AND SENSOR SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . 2-33

MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-35

COMPONENT PARTS LOCATION GUIDE <MAIN> YB10400-01-02. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-37

MAIN CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-39

MONITOR CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-41

CCD CIRCUIT BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

E.VF CIRCUIT BOARD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

WAVEFORMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-46

VOLTAGE CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47

POWER SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49

CPU/MDA SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-51

CAMERA AND Y/C SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-53

MONITOR SYSTEM BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-57

PARTS LIST

1. EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1.1 PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

1.2 FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2

1.3 MECHANISM ASSEMBLY <M3> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

1.4 ELECTRONIC VIEWFINDER ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

1.5 MONITOR ASSEMBLY (2.5 INCH) <M5> [A] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

1.6 MONITOR ASSEMBLY (3.5 INCH) <M5> [B,C,D,E]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

2. PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

PACKING AND ACCESSORY ASSEMBLY <M1> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

FINAL ASSEMBLY <M2> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

MECHANISM ASSEMBLY <M4> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

ELECTRONIC VIEWFINDER ASSEMBLY <M4>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

MONITOR ASSEMBLY (2.5 INCH) <M5> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

MONITOR ASSEMBLY (3.5 INCH) <M5> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

MAIN BOARD ASSEMBLY <01> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9

CCD BOARD ASSEMBLY <02> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

MONITOR BOARD ASSEMBLY <07> . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15

E.VF BOARD ASSEMBLY <60>. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

1-14

GR-SXM250US GR-SXM750UC/GR-SXM750US GR-SXM755UC/GR-SXM755US
LCD MONITOR 2.5 INCH 3.5 INCH
BODY COLOR SILVER METALLIC BLUE

SECTION 1

r

e

PRECAUTIONS

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.

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 connector

In 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.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.4

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

the wires fully into the connector.

Metal sleeve

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

Fig.1

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

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

pointed parts.

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

of force in any direction will not loosen it.

Power cord

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

products, the cathode ray tubes themselves, the high volt­age circuits, and related circuits are specified for compliance
with recognized codes pertaining to X-ray emission. Conse­quently, when servicing these products, replace the cathode

Connector

Fig.5

d) 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.

1.2
5

2

.0

5.5

Crimping tool

Fig.6

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

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. cente

of metal sleev

Conductors extended

Fig.7

(No.86721)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.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.11 below.

(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.9 and following Fig12.

ab

Externally
exposed
accessible part

Z

V

c

A

Fig.9

(5) Grounding (Class 1 model only)

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

Fig.8

Fig.10

Fig.11

Fig.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.86721)

SPECIFIC SERVICE INSTRUCTIONS

2.1 BEFORE ASSEMBLY AND DISASSEMBLY

2.1.1 Precautions

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

2. 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).

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

4. Be careful in removing or handling the part to which some
spacer or shield is attached for reinforcement or insulation.

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

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

0.196N•m (2.0kgf•cm).

2.1.2 Assembly and disassembly

[Example]

STEP

No.

[1]

[2]

[3]

[4]

PART

LOWER CASE ASSEMBLY

B/W VF ASSEMBLY

TOP OPE UNIT

CASE COVER(S) ASSEMBLY

CASE COVER(M) ASSEMBLY

Fig.
No.

Fig.C1

Fig.C2

POINT

8(S1),CN1a,b,c

3(S2)

CN3,L3a,2(L3b)

(S4),2(L4)

SECTION 2

2.1.4 Disconnection of connectors (Wires)

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

Flat wire

Connector

Fig.2-1-1
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.

NOTE

Flat wire

-

-

-

-

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

(1) Order of steps in Procedure

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

D = CAMERA AND BOARD ASSEMBLY

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

released, unplugged, unclamped or unsoldered.

P= Spring

W= Washer

S= Screw

* = Unhook, unlock, release, unplug or unsolder.

2(S3) = 2 Screws (S3)

CN = Connector

(5) Adjustment information for installation.

2.1.3 Destination of connectors

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: Flat wire
: Wire

[Example]

CONN.

No.

CN1a MAIN CN27 2

CONNECTOR

SPEAKER

Pin No.

-

Remove the parts marked in .

Connector

Fig.2-1-2

2.1.5 Tools required for disassembly and assembly

1

3

Torque driver

YTU94088

Cleaning cloth

KSMM-01

2

Bit

YTU94088-003

Fig.2-1-3

1.Torque driver

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

2.Bit

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

3.Cleaning cloth

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

(No.86721)1-5

2.2 ASSEMBLY AND DISASSEMBLY OF CABINET PARTS

2.2.1 Disassembly flow chart

This flowchart indicates the disassembly step for the cabinet
parts and board assembly in order to gain access to item(s) to be
serviced. When reassembling, perform the step(s) in reverse or­der.

[1]

LOWER CASE ASSEMBLY

[2]

[3]

[4]
[4]

CASE COVER(M) ASSEMBLY

[5]

UPPER CASE (S) ASSEMBLY

[5]

UPPER CASE (M) ASSEMBLY

TOP OPE UNIT

CASE COVER(S) ASSEMBLY

B/W VF ASSEMBLY

Inc. MONITOR ASSEMBLY

NOTE:
MONITOR MODEL ONLY

[6]

COVER (UPPER/M) ASSEMBLY

[7]

MONITOR ASSEMBLY

[8]

FRONT COVER ASSEMBLY

Inc. DC LIGHT,MIC

[9]

DC LIGHT ASSEMBLY

[11]

[10]

FRONT FRAME SA

MIC

2.2.2 Disassembly method

STEP

No.

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

CONN.

No.

CN1a

CN1b

CN1c

CN3

CN5

CN8a

CN8b

PART

LOWER CASE ASSEMBLY

B/W VF ASSEMBLY

TOP OPE UNIT

CASE COVER(S) ASSEMBLY

CASE COVER(M) ASSEMBLY

UPPER CASE (S) ASSEMBLY

UPPER CASE (M) ASSEMBLY
Inc. MONITOR ASSEMBLY

COVER (UPPER/M) ASSEMBLY

MONITOR ASSEMBLY

FRONT COVER ASSEMBLY
Inc. DC LIGHT,MIC

DC LIGHT ASSEMBLY

MIC

FRONT FRAME SA

MAIN CN27

MAIN CN13

MAIN CN12

MAIN CN18

MAIN CN16

MAIN CN6

MAIN CN8

Fig.
No.

Fig.C1

Fig.C2

Fig.C3

Fig.C4

Fig.C5

CONNECTOR

POINT

8(S1),CN1a,b,c

3(S2)

CN3,L3a,2(L3b)

(S4),2(L4)

6(S5a),(S5b),(L5)

CN5,6(S5a),(L5)

3(S6),2(L6)

S7a,L7a,SHEET(FPC),2(S7b),L7b

CN8a,CN8b,(S8),L8a,L8b

2(L9)

S10

2(S11)

SPEAKER

ZOOM UNIT

B/W VF ASSEMBLY

TOP OPE UNIT

MONITOR ASSEMBLY

DC LIGHT

MIC

NOTE

-

-

-

-

NOTE 5

-

NOTE 7a,b,c,d

NOTE 8a,b

-

-

NOTE 11

Pin No.

-

2

-

14

3

-

13

-

25

-

2

-

2

Remove the parts marked in .

NOTE 5 :

Take care not to break or damage the FRAME.

NOTE 7a :

Take care not to cut the FPC wire.

NOTE 7b :

Insert and attach the SHEET(FPC) between the MONITOR
FPC and the UPPER CASE(M)ASSEMBLY.

NOTE 7c :

Attachment of the FPC

NOTE 7d :

For disassembly of the MONITOR ASSEMBLY, refer to 2.4
ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEM­BLY (CABINET PARTS).

NOTE 8a :

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

NOTE 8b :

Attachment of the WIRE

NOTE 11 :

There are two types of FRONT FRAME ASSEMBLY.
The two types of the FRONT FRAME ASSEMBLY can be dis­tinguished from each other by their shape.
TYPE B consists of the two parts, namely the tape guide and
the torsion spring.
In exchanging the FRONT FRAME ASSEMBLY, TYPE A can
be exchanged to TYPE B, but TYPE B cannot be exchanged
to TYPE A.
As for the part number, refer to the parts list.

1-6 (No.86721)

[3]

L3b

S

E

x

u

t

CN1b

CN1c

D

F

CN1a

10 (S2

11 (S2

L3a

v

D

9 (S2

)

CN3

w

G

z

y

5

(S1)

v

[1]

4

(S1)

y

7

(S1)

w

z

8

(S1)

2

(S1)

p

1

(S1)

E

s1

r

q

F

G

3

(S1)

)

r

)

s

q

p

E

u

t

x

6

(S1)

[2]

Fig.C1

L4

aa

[4]

[4]

<SHOOTING MODEL>

aa

aa

12

(S4)

Fig.C2

<MONITOR MODEL>

(No.86721)1-7

<NOTE 5>

[5]

15

(S5a)

16

(S5a)

14

(S5a)

n

m

<SHOOTING MODEL>

g

k

k

24

(S7b)

25

(S7b)

L7b

[7]

<NOTE 7d>

<NOTE 5>

[5]

15

(S5a)

16

(S5a)

e

l

j

17

(S5a)

h

i

j

17

(S5a)

FPC
<NOTE 7a>

23

(S7a)

14

(S5a)

n

18

(S5a)

f

d

c

L7a

<NOTE 7b>
SHEET(FPC)

m

k

[6]

18

(S5a)

g

h

i

e

<MONITOR MODEL>

n

L5

c

C

d

j

Fig.C3

f

c

20

(S6)

21

(S6)

22

(S6)

19

(S5b)

d

L6

m

13

(S5a)

g

C

CN5

k

<MONITOR MODEL>

<NOTE 7c>

DO NOT MAKE FPC
SLACKEN IN THIS PART.

PROCESSED
THROUGH THIS PART.

1-8 (No.86721)

UPPER CASE(M)ASSEMBLY

AS FOR PUSH SW, DON'T BE
BROKEN AND DON'T FLOAT .
(SEE AND CHECK SW AFTER
ATTACHING FPC.)

Fig.C4

INSTALL THE RAINFORCEMENT
BOARD WITH MONITOR OPENED .
( FOR THE DAMAGE PREVENTION
OF PUSH SWITCH .)

28

(S11)

<NOTE 11>

26

(S8)

0.118N.m (1.2kgf.cm)

[11]

a

29

OP BLOCK ASSEMBLY

a

(S11)

b

b

SCREWING SEQUENCE
SHOULD BE IN ORDER
HERE FIRST AND OTHERS .

TYPE A TYPE B

<NOTE 8a>

L8a

c

B

CN8b

<NOTE 11>

CN8a

A

L8b

B

c

[8]

A

LIGHT WIRE

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

<NOTE 8b>

MIC WIRE

PASS THE WIRE
BETWEEN
THESE BOSSES.

DO NOT OBSTRUCT
THE RECEIVING
PART OF SENSOR
BY WIRE .

PASS THE WIRE
OUTSIDE OF
THIS BOSS .

[9]

27

(S10)

L9

[10]

Fig.C5

(No.86721)1-9

2.3 ASSEMBLY AND DISASSEMBLY OF CAMERA SECTION AND BOARD ASSEMBLY

2.3.1 Disassembly flow chart

This flowchart indicates the disassembly step for the cabinet
parts and board assembly in order to gain access to item(s) to be
serviced. When reassembling, perform the step(s) in reverse or­der.

NOTE:

Please see Service Manual No. 86700 (MECHANISM ASSY).

[1]

[2]

MAIN BOARD ASSEMBLY

OP BLOCK

ASSEMBLY

[3]

[4]

[5]

MECHANISM

REAR BOARD ASSEMBLY

ASSEMBLY

2.3.2 Disassembly method

STEP

No.

[1]

[2]

[3]

[4]

[5]

CONN.

No.

CN1a

CN1b

CN1c

CN1d

CN1e

CN1f

CN1g

CN1h

CN1j

PART

MAIN BOARD ASSEMBLY

OP BLOCK ASSEMBLY

CCD BOARD ASSEMBLY

MECHANISM ASSEMBLY

REAR BOARD ASSEMBLY

MAIN CN15

MAIN CN4

MAIN CN1

MAIN CN5

MAIN CN2

MAIN CN3

MAIN CN7

MAIN CN22

MAIN CN28

Fig.
No.

Fig.D1

Fig.D2

Fig.D3

Fig.D4

CONNECTOR

Remove the parts marked in .

CCD BOARD ASSEMBLY

POINT

CN1a,b,c,d,e,f,g,h,SHIELD
2(S1),CN1j,L1

2(S2)

(S4a),(S4b),L4
SHIELD CASE(MAIN)
2(S4c),(S4d)

2(S5)

OP BLOCK

LOADING MOTOR

DRUM MOTOR

HEAD(VIDEO,FLY.E)

SENSOR

CAPSTAN MOTOR

A/C HEAD

CCD

REAR UNIT

ASSEMBLY

NOTE

NOTE 3

NOTE 4

Pin No.

-

-

-

-

-

-

-

CN5301

-

-

-

-

24

2

10

11

14

18

11

14

10

NOTE 3 :

For disassembly of the CCD BOARD ASSEMBLY, refer to 2.5
ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEM­BLY CCD BOARD ASSEMBLY (CAMERA SECTION AND
BOARD ASSEMBLY).

NOTE 4 :

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).

1-10 (No.86721)

A2
G2

CN1j

F2

A2

B2

J

D2

CN1e

SHIELD

Fig.D1

C2

L1

G2

CN1g

CN1f

E2

B2

F2

CN1h

J

C2

D2

CN1d

2

(S1)

E2

(S1)

[1]

CN1a

CN1c

1

CN1b

9

(S4d)

d

[4]

g

c

f

8

(S4c)

7

(S4c)

<NOTE 4>
FRAME ASSEMBLY

c

SHIELD
CASE
(MAIN)

L4

d

f

g

G1

G2

6

5

(S4b)

(S4a)

4

(S2)

3

(S2)

h

Fig.D2

h

j

j

[3]

<NOTE 3>

[2]

Fig.D3

[5]

a

b

a

10

(S5)

b

11

(S5)

FRAME
ASSEMBLY

Fig.D4

(No.86721)1-11

2.4 ASSEMBLY AND DISASSEMBLY OF [7]MONITOR ASSEMBLY (CABINET PARTS)

2.4.1 Disassembly of MONITOR ASSEMBLY <2.5 TYPE>

NOTE :

Be careful not to soil or scratch the monitor screen through the
disassembly/assembly work.
(1) While removing the three screws 1 to 3 in numerical order

and disengaging the two hooks (L7a and L7b) in alphabet­ical order, remove the MONITOR COVER ASSEMBLY.

NOTE 7a :

After removing the MONITOR COVER ASSEMBLY, be
careful not to damage the FPC and the connector be-

MONITOR COVER
ASSEMBLY

<NOTE 7b>

cause the MONI. HINGE ASSEMBLY moves very easily.

(2) Unlock the connector 7a and then remove the FPC while

lifting the MONI. HINGE ASSEMBLY upwards to remove it
together with the FPC.

NOTE 7b :

When removing the FPC, unlock the connector first and
then lift the MONI. HINGE ASSEMBLY upwards.

MONITOR BOARD
ASSEMBLY

SENSOR BOARD
ASSEMBLY

Accordingly, the FPC is removed together with the
MONI.HINGE ASSEMBLY.

(3) Unsolder the two soldered parts (SD7).

NOTE 7c :

When removing the MONITOR BOARD ASSEMBLY and
the BACK LIGHT together, it is not necessary to unsol­der the two soldered parts (SD7).

NOTE 7d :

It depends on the inch size of the monitor assembly
whether the backlight is supplied as an assembly or as
separated parts.

MONI. HINGE
ASSEMBLY

<NOTE 7a>

In replacing the backlight assembly, see the Parts List.

(4) Unlock the connector 7b, and disconnect the FPC from the

connector 7b.

(5) Disconnect the SENSOR BOARD ASSEMBLY from MON-

ITOR CASE ASSEMBLY.

(6) Remove the screw (4), and remove the MONITOR BOARD

ASSEMBLY while lifting the side of MONITOR BOARD AS-

SEMBLY which has been attached with screw (4) upwards.
(7) Remove the BACK LIGHT and DIFF SHEET in this order.
(8) Remove the LCD FRAME&LCD MODULE while disengag-

D1

ing L7e and L7f at the both sides of MONITOR CASE AS-

SEMBLY.
(9) Remove the S.CASE.

L7c

L7e

L7a

CN7a

4

(S7a)

D1

C1

E1

L7f

L7b

<NOTE 7b>

CN7b

<NOTE 7c>

E1

C1

B1

SD7

DIFF SHEET
SHOULD PUT THIS
PART AT RIGHT SIDE .

B1

A1

S.CASE

F1

MONITOR CASE ASSEMBLY

1

(S7a)

F1

A1

<NOTE 7c,d>
BACK LIGHT
ASSEMBLY

LCD FRAME &
LCD MODULE

L7d

1-12 (No.86721)

2

(S7b)

3

(S7b)

Fig.2-4-1

2.4.2 Disassembly of MONITOR ASSEMBLY <3.5 TYPE>

NOTE :

Be careful not to soil or scratch the monitor screen through the
disassembly/assembly work.

(1) While removing the three screws 1 to 3 in numerical order

and disengaging the two hooks (L7a and L7b) in alphabet­ical order, remove the MONITOR COVER ASSEMBLY.

NOTE 7a :

After removing the MONITOR COVER ASSEMBLY, be
careful not to damage the FPC and the connector be­cause the MONI. HINGE ASSEMBLY moves very easily.

(2) Unlock the connector 7a and then remove the FPC while

lifting the MONI. HINGE ASSEMBLY upwards to remove it
together with the FPC.

NOTE 7b :

When removing the FPC, unlock the connector first and
then lift the MONI. HINGE ASSEMBLY upwards.
Accordingly, the FPC is removed together with the
MONI.HINGE ASSEMBLY.

(3) Unsolder the two soldered parts (SD7).

NOTE 7c :

When removing the MONITOR BOARD ASSEMBLY and
the BACK LIGHT together, it is not necessary to unsol­der the two soldered parts (SD7).

NOTE 7d :

It depends on the inch size of the monitor assembly
whether the backlight is supplied as an assembly or as
separated parts.
In replacing the backlight assembly, see the Parts List.

NOTE 7e :

Attatchment of the WIRE.

(4) Unlock the connector 7b, and disconnect the FPC from the

connector 7b.

(5) Disconnect the SENSOR BOARD ASSEMBLY from MON-

ITOR CASE ASSEMBLY.

(6) Remove the screw (4), and remove the MONITOR BOARD

ASSEMBLY while lifting the side of MONITOR BOARD AS-

SEMBLY which has been attached with screw (4) upwards.
(7) Remove the BACK LIGHT.
(8) Remove the LCD FRAME&LCD MODULE while disengag-

ing L7e and L7f at the both sides of MONITOR CASE AS-

SEMBLY.
(9) Remove the S.CASE.

MONITOR COVER
ASSEMBLY

2

(S7b)

SENSOR BOARD
ASSEMBLY

<NOTE 7a>

MONI. HINGE
ASSEMBLY

3

(S7b)

<NOTE 7b>

CN7a

L7e

b

a

d

c

L7g

CN7b

L7b

4

(S7a)

f

LCD FRAME

LCD MODULE

1

(S7a)

<NOTE 7c>

SD7

BACK LIGHT
ASSEMBLY
<NOTE 7c,d>

S. CASE

L7a

a

c

<NOTE 7e>

WIRE

SD7

b

d

Fig.2-4-2

L7f

WIRE

MONITOR CASE
ASSEMBLY

(No.86721)1-13

2.5 ASSEMBLY AND DISASSEMBLY OF [2]OP BLOCK ASSEMBLY
CCD BOARD ASSEMBLY (CAMERA SECTION AND BOARD ASSEMBLY)

2.5.1 Precautions

2.5.3 Assembly of CCD BASE ASSEMBLY and CCD

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

and lens components when performing maintenance etc.,

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

2.5.2 Disassembly of CCD BOARD ASSEMBLY and CCD
BASE ASSEMBLY

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

(SD2) 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.

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

(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

2.5.4 Replacement 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 2b:

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

NOTE 2c:

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

BOARD ASSEMBLY

OP side touches the OP BLOCK ASSEMBLY.

NOTE 2a:

Pay careful attention to the orientation of the OP LPF.

position.

ASSEMBLY, and then solder it by the 14 points (SD2).

(S2c)

8

(S2c)

SENSOR

1

11

9

(S2b)

(S2b)

7

IRIS MOTOR UNIT
<NOTE 2b, c>

10

(S2b)

5

(S2b)

OP BLOCK

6

(S2b)

FOCUS MOTOR
<NOTE 2b>

(S2b)

3

<NOTE 2a>

OP LPF

Blue

OP

side

4

(S2b)

CCD

side

OP LPF

ZOOM MOTOR
<NOTE 2b>

(SD2)

SHEET

CCD BASE ASSEMBLY

SPACER

0.078N.m (0.8kgf.cm)

.

0.118N

m (1.2kgf.cm)

(S2a)

2

(S2a)

CCD BAORD
ASSEMBLY

1-14 (No.86721)

Fig.2-5-1

2.6 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 6.0 sec UNLOADING without shift to next

UNLOADING

mode.

E01 Mode control motor rotates for more than 6.0 sec LOADING without shift to next mode. LOADING

E00 Overtime the programming transaction REC, PLAY

2.7 AUTOMATIC DEMONSTRATION

Automatic Demonstration takes place when “DEMO MODE” is
set to “ON” (factory-preset).

(1) Available when the Power Switch is set to “A” or “M” while

pressing down the Lock Button located on the switch.

(2) Performing any operation during the demonstration stops

the demonstration temporarily. If no operation is performed
for more than 1 minute after that, the demonstration will

MENU Wheel

resume.

(3) “DEMO MODE” remains “ON” even if the camcorder power

is turned off.

(4) To cancel Automatic Demonstration, set the Power Switch

to “M” and press the MENU Wheel in while the demo is in

Lock Button

progress. This takes you directly to the demo mode’s Set­ting Menu (so you will not have to go through the main
Menu Screen). Rotate the MENU Wheel to select “OFF”
and press it.

Power Switch

Fig.2-7-1

NOTE:

• When a tape whose Erase Protection tab is in the position
that allows recording is loaded in the
camcorder, demonstration is not available.

• If you do not detach the Lens Cap, you cannot see the actual
changes of the Automatic Demonstration activated on the
LCD monitor or viewfinder.
* Applicable models only.

(NTSC)

(No.86721)1-15

2.7.1 Operation procedure

R
D

N

E
.

ECXZT

M
O

S

O
O

Y

D

M

SETEM ME

SNP

U

TO SCYASMTEERMAMMEEN

N

U

U

TITLE

MO

VIE

EXPOSURE A

UTO

M. W.

B.

A

UTO

1. Set the Power Switch to turn on
the "M".
Press the MENU Wheel once.
The first page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
Press the MENU Wheel once.
The second page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).

2. Press the MENU Wheel once.
The third page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).

T

O

C

OS

D

OUT P UT O

R

E

C

T

I

N

T

.

T

E

L

E

D

E

M

O

D

A

T

E

Display 1

S

Y

S

T

E

MMMEE

M

A

E

R

A

I

M

E

T

I

M

E

M

A

C

R

O

D

E

M

O

/

T

M

E

I

2.7.2 Flow chart

NOTE:

When demonstration is performed, some of the following func­tions that a model does not have are omitted.

1. TITLE CALL and FUTURE

2. EASY PC CONNECTION

O

F

F

3. CREATE IMAGES & E-MAIL

4. NIGHT-SCOPE OFF

5. NIGHT-SCOPE ON

6. VHS

7. S-VHS (For S-VHS MODEL ONLY)

N

U

N

U
N

O

F

F

O

F

F

O

F

F

O

F

F

8. SNAP SHOT

9. PROGRAM AE FOG

10. PROGRAM AE ND EFFECT

3. Turn the MENU Wheel in the

direction ofthe arrow to set the
cursor at "DEMO MODE".
Then, press the MENU Wheel
once.
The third page the DEMO
MODE appearson the LCD
monitor (or in the viewfinder).

4. Turn the MENU Wheel in the
direction ofthe arrow to set the
cursor at "ON".
Then, press the MENU Wheel
once.
The fourth page of the DISPLAY
appears on the LCD monitor (or in
the viewfinder).
("DEMO MODE" is switched "ON"
from "OFF" status.)

R

E

T

OFF

ON

EXI T

T

O

C

OS

D

OUT P UT O

R

E

C

T

I

N

T

.

T

E

L

E

M

D

E

O

A

T

E

D

R

E

T

U

U

R

N

Display 2

DEMO MODE

Display 3

S

Y

S

T

E

M

M

A

E

R

A

M

E

I

I

M

T

E

A

C

M

R

O

M

O

D

E

I

T

M

/

E

R

N

Display 4

11. FADE/WIPE BLACK

12. FADE/WIPE MOSAIC

13. FADE/WIPE SHUTTER

14. FADE/WIPE SLIDE

15. FADE/WIPE DOOR

16. FADE/WIPE CORNER

17. FADE/WIPE WINDOW

18. DIGITAL EFFECT NEGA/POSI

19. DIGITAL EFFECT STRETCH

20. DIGITAL EFFECT MOSAIC

21. DIGITAL EFFECT SEPIA

22. DIGITAL EFFECT B/W

23. DIGITAL EFFECT B.FILTER

24. DIGITAL EFFECT R.FILTER

N

U

MEE

U

M

N

N

O

F

F

O

F

F

O

F

F

O

N

25. DIGITAL EFFECT SOLARI

26. DIGITAL EFFECT STROBE

27. DIGITAL EFFECT CLASSIC

28. DIGITAL EFFECT VIDEO ECHO

29. WIDE OFF

30. WIDE ON

5. Press the MENU Wheel once.

The camcorder automatically
enter the DEMONSTRATION
mode and it repeats
demonstration operation.
While the camcorder is performing
demonstration, all operations
except turning on/off the Power
Switch are ineffectual.

1-16 (No.86721)

Fig.2-7-2

Refer to Fig. 2-7-3.

While the DEMONSTRATION
mode is activated, a word of
DEMONSTRATION is appearing
on the screen scrolling from right
to left.

31. WIDE OFF

32. P.STABILIZER OFF

33. P.STABILIZER ON

34. P.STABILIZER OFF

35. P.STABILIZER ON

Fig.2-7-3

2.8 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 OPE

UNIT (see Fig.C1, page 6).

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

MOTOR as shown by the magnified view (Fig. 2-8-1).

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.2-8-1

(No.86721)1-17

2.9 SERVICE NOTE

Use the following chart to manage screws

[5]

[4]

[3]

[2]

Fig.C3

[2]

Fig.2-5-1

Fig.C2

-

[11]

[5]

Fig.D4

<2.5 OP BLOCK ASSEMBLY>

-

27 28 29

[10]

-

-

-

[9]

[8]

[4]

Fig.D3

Fig.C1

1-18 (No.86721)

[7]

[1]

[6]

<2.2 CABINET PARTS>

Symbol No.

Reference drawing

Place to stick screw -

Screw tightening torque

Removing order of screw 1 2 3 4 5 6 7 8 9 10 11 - 12 13 14 15 16 17 18 19

20 21 22 23 24 25 26

Symbol No.

Removing order of screw

**

Fig.C4 Fig.C5

[2]/[3]

[1]

<2.3 CAMERA SECTION AND BOARD ASSEMBLY>

Symbol No.

Reference drawing

Place to stick screw

Screw tightening torque

Removing order of screw 1 2 3 4 5 6 7 8 9 10 11

Fig.D2

[7]

Fig.D1

<2.4 MONITOR ASSEMBLY>

Symbol No. Symbol No.

Reference drawing

Place to stick screw

Screw tightening torque

Removing order of screw 1 2 3 4 Removing order of screw 1 2 3 4 5 6 7 8 9 10 11

Fig.2-4-1,2

<NOTE>

Reference drawing Reference drawing

Place to stick screw Place to stick screw

Screw tightening torque Screw tightening torque

SECTION 3

ADJUSTMENT

3.1 PREPARATION

(1) Precaution

This model does not contain adjustment controls (VR).
General deck system, camera system and monitor system
adjustment are not required. However, if MAIN board need
replacement, please use original EEP ROM on to new
board. Then adjustment are not required. And if parts such
as the following need replacement, special computerized
adjustment are required. 3.4.1 ELECTRICAL ADJUST­MENT WITH PERSONAL COMPUTER is setup and it ad­justs using a service support system. Please contact to
JVC Service for detail information.

• OP BLOCK

• EEP ROM (IC102 of MAIN board)

• MONITOR
In the event of malfunction with electrical circuits, trouble­shooting with the aid of proper test instruments most be
done first, and then commence necessary repair, replace­ment and adjustment, etc.

a) In case of wiring to chip test points for measurement,

use IC clips, etc. to avoid any stress.

b) Since connectors are fragile, carefully handle them in

disconnecting and connecting.

c) Short circuit between operation unit and DECK chas-

sis.

(2) Required test equipment

a) Color TV monitor.
b) AC power adapter
c) Oscilloscope (dual-trace type, observable 100 MHz

or higher frequency)

• It is recommended to use one observable 300 MHz
or higher frequency.

d) Digital voltmeter
e) Frequency counter (with threshold level adjuster)

f) Personal computer

3.2 TOOLS REQUIRED FOR ADJUSTMENT

Alignment tape

1

Cassette torque meter

3

5

7

9

PUJ50431-2

INF adjustment lens

YTU92001B

Gray scale chart

YTU94133A

INF lens holder

YTU94087

MHP-C

Alignment tape

2

4

6

YTU92001-111

Color bar chart

8

Light box assembly

10

YTU93096A

MHP-LC

Roller driver

PTU94002-2

Conn. ring

YTU94133C

11 12

13

Camera stand

YTU93079

Communication cable

YTU93107A

PC cable

QAM0099-002

14

1615

Fig.3-2-1

Jig connector cable

YTU93082G

Service support system

YTU94057-65

Cleaning cloth

KSMM-01

(No.86721)1-19

1,2. Alignment tape

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

3. Cassette torque meter

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

4. Roller driver

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

5.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.

6.Conn. ring

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

7.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.

8.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.

9.INF 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.

10.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.

11.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.

12. Jig connector cable

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

MAIN CN25 JIG BOARD (LABEL)

AL_L3.2V 1 1 AL_L3.2V

MCU_RST 11 2 NC

NC 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

EJECT_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 EJECT_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

Fig.3-2-2

13.Communication Cable

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

14.Service support system

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

15.PC cable

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

16.Cleaning cloth

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

1-20 (No.86721)

3.3 MECHANISM ADJUSTMENT

3.3.1 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

0.97x10

-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.3-3-1

3.3.2 Back tension

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

• CASE COVER(S),(M) ASSEMBLY

• C. COVER INSIDE

Fig.3-3-3

3.3.3 Tape pattern

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

• LOWER CASE ASSEMBLY

• TOP OPE UNIT

• CASE COVER(S),(M) ASSEMBLY

• UPPER CASE (S),(M) ASSEMBLY

NOTE:

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

POLE BASE (TU)
(GUIDE ROLLER)

ALIGNMENT TAPE

CASSETTE TORQUE METER

Fig.3-3-2

(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 0.97x10

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

MAIN BOARD ASSEMBLY as shown on Fig. 3-2-2.

(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.

(No.86721)1-21

NOTE:

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

(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 EP

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 EP model
only.

CH-2

1 field

FLATTEN WAVEFORM.

3.3.4 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.

• LOWER CASE ASSEMBLY

• TOP OPE UNIT

• CASE COVER(S),(M) ASSEMBLY

• UPPER CASE (S),(M) ASSEMBLY

• FRONT FRAME ASSEMBLY

NOTE:

In performing adjustment, it is recommended that LOWER
CASE ASSEMBLY and TOP OPE UNIT are attached to the
main body for better operation and safety.
(1) Remove the Cover (JIG) shown on Fig.3-4-1.
(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 sig-

nal level fluctuation and screw C for maximum output sig-

nal level.

CAUSER BY WRONG HEIGHT
OF SUPPLY GUIDE ROLLER

CAUSED BY WRONG HEIGHT
OF TAKE-UP GUIDE ROLLER

Fig.3-3-5

CORRECT VARIATION OF WAVEFORM

BAD VARIATION OF WAVEFORM

Fig.3-3-6

(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.

SCREW A

A/C HEAD

SCREW C

SCREW B

Fig.3-3-7

Audio
signal

Control
pulse
signal

1-22 (No.86721)

Fig.3-3-8

3.3.5 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. 3-3-9.

(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. 3-3-9).

(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.3-3-8

A
ADJUSTING
POINT

A/C HEAD PHASE

Fig.3-3-9

INSERT THE
TWEEZERS

SCREW E

B

MAX

ZERO

DIRECTION OF DRUM

(No.86721)1-23