JVC GR-SXM250US, GR-SXM250U, GR-SXM755US, GR-SXN250U, GR-SXM750U Service Manual

...

86721200302

SERVICE MANUAL

COMPACT VHS CAMCORDER

GR-SXM250US,GR-SXM750U

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

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

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

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

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.

Externally exposed accessible part

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

Torque driver

YTU94088

Cleaning cloth

KSMM-01

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.

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

CN1b

CN1c

CN1a

10 (S2

11 (S2

L3a

9 (S2

)

CN3

(S1)

[1]

(S1)

)

(S1)

[2]

Fig.C1

[4]

(S4)

Fig.C2

(No.86721)1-7

[5]

(S5a)

(S7b)

L7b

[7]

[5]

(S5a)

FPC <NOTE 7a>

(S7a)

(S5a)

L7a

<NOTE 7b> SHEET(FPC)

[6]

(S5a)

Fig.C3

(S6)

(S5b)

(S5a)

CN5

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 .)

(S11)

(S8)

0.118N.m (1.2kgf.cm)

[11]

OP BLOCK ASSEMBLY

(S11)

SCREWING SEQUENCE SHOULD BE IN ORDER HERE FIRST AND OTHERS .

TYPE A TYPE B

L8a

CN8b

CN8a

L8b

[8]

LIGHT WIRE

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

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]

(S10)

[10]

Fig.C5

(No.86721)1-9

+ 18 hidden pages