Jvc Gz-mg255us User manual

SERVICE MANUAL

2007/3

HARD DISK CAMCORDER

YF18020073SERVICE MANUALEverio

GZ-MG255US

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

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

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

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

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

GZ-MG255USM [M7E325]

1-2 (No.YF180)

SPECIFICATION

Camcorder

AC Adapter

Remote Control

Design and specifications subject to change without notice.

For General Power supply DC 11 V (Using AC Adapter)

DC 7.2 V (Using battery pack)

Power consumption Approx. 3.8 W

Approx. 6.8 W (Maximum; when charging a battery)

Dimensions (W ×H ×D) 66 mm ×71 mm ×110 mm (2-5/8" ×2-13/16" ×4-3/8")

Weight Approx. 355 g (0.79 lbs) (incl.strap)

Approx. 400 g (0.89 lbs) (incl. battery and strap)

Operating temperature 0°C to 40°C (32°F to 104°F)

Operating humidity 35% to 80%

Storage temperature -20°C to 50°C (-4°F to 122°F)

Pickup 1/3.9" (2,180,000 pixels) CCD

Lens F 1.2 to 2.0, f = 3.8 mm to 38 mm, 10:1 power zoom lens

Filter diameter Ø30.5 mm

LCD monitor 2.7" diagonally measured, LCD panel/TFT active matrix system

Speaker Monaural

Frash Within 2 m (6.6 ft) (recommended shooting distance)

For Video/Audio Format SD-VIDEO

Recording/Playback

format

Video MPEG-2

Audio Dolby Digital (2 ch)

Signal format NTSC standard

Recording mode (video) ULTRA FINE: 720 ×480 pixels, 8.5 Mbps (VBR)

FINE: 720 ×480 pixels, 5.5 Mbps (VBR)

NORMAL: 720 ×480 pixels, 4.2 Mbps (VBR)

ECONOMY: 352 ×240 pixels, 1.5 Mbps (VBR)

Recording mode (audio) ULTRA FINE: 48 kHz, 384 kbps

FINE: 48 kHz, 384 kbps

NORMAL: 48 kHz, 256 kbps

ECONOMY: 48 kHz, 128 kbps

For Still image Format JPEG

Image size 6 mode

(1632 ×1224/1280 ×960/1024 ×768/640 ×480/1632 ×912/1280 ×720)

Picture quality 2 modes (FINE/STANDARD)

For connectors DV output 4-pin (I.LINK/IEEE1394 compliant)

S input/output Input: Y: 0.8 V (p-p) ~ 1.2 V (p-p), 75Ω, C: 0.2 V (p-p) ~ 0.4 V (p-p), 75Ω

Output: Y: 1.0 V (p-p), 75Ω, C: 0.29 V (p-p), 75Ω

AV input/output Video input 0.8 V (p-p) ~ 1.2 V(p-p), 75 Ω

Video output 1.0 V (p-p), 75 Ω

Audio input 300 mV (rms),50 kΩ

Audio output 300 mV (rms), 1 kΩ, analog

USB Mini USB type A and type B, USB 2.0 compliant

Power requirement AC 110 V to 240 V, 50 Hz/60 Hz

Output DC 11 V, 1 A

Power supply DC 3 V

Battery life Approx. 1 year (depending on the frequency of use)

Operating distance Within 5 m (16.4 ft)

Operating temperature 0°C to 40°C (32°F to 104°F)

Dimensions (W ×H ×D) 42 mm ×14.5 mm ×91 mm (1-11/16" ×5/8" ×3-5/8")

Weight Approx. 30 g (0.07 lbs) (incl. battery)

(No.YF180)1-3

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.

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.

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

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).

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.

Fig.1-1-4

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

Insert the wires fully into the 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.

Fig.1-1-6

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

Fig.1-1-7

Power cord

cut close to connector

15 mm

Connector

Metal sleeve

1.25

2.0

5.5

Crimping tool

Not easily pulled free Crimped at approx. cente

of metal sleeve

Conductors extended

Wire insulation recessed

more than 4 mm

1-4 (No.YF180)

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.

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.

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.

Fig.1-1-10

Fig.1-1-11

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.

Chassis

Power cord

primary wire

Externally

exposed

accessible part

Exposed accessible part

Grounding Specifications

AC inlet

Region

USA & Canada

Europe & Australia

Grounding Impedance (Z)

Z 0.1 ohm

Z 0.5 ohm

Earth pin

MIlli ohm meter

AC Line Voltage Region

Japan

Europe & Australia

R 1 M /500 V DC

USA & Canada 1 M R 12 M /500 V DC

R 10 M /500 V DC

Insulation Resistance (R)Dielectric Strength Clearance Distance (d), (d')

100 V

100 to 240 V

110 to 130 V

200 to 240 V

AC 1 kV 1 minute

AC 1.5 kV 1 minute

AC 1 kV 1 minute

(Class )

AC 3 kV 1 minute

AC 1.5 kV 1 minute

d, d' 3 mm

d, d' 4 mm

d, d' 3.2 mm

d' 8 m m (Power cord)

d' 6 m m (Primary wire)

d 4 m m

AC Line Voltage Region

Japan

Europe & Australia

USA & Canada

Load Z Leakage Current (i) a, b, c

100 V

110 to 130 V

220 to 240 V

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

Exposed accessible parts

Antenna earth terminals

Other terminals

1.5

0.15

(No.YF180)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 Replacing HDD

NOTE) After HDD replacement, format the HDD first.

When the power is turned on after the HDD replacement, the

below "Warning screen" is displayed.

Be sure to format the HDD following the messages.

Be sure to turn off the power once after the formatting.

If the HDD recording is started without being turned off the

power, normal recording cannot be performed although the re-

cording will start.

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1-6 (No.YF180)

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

otherwise specified, tighten screws at a torque of 0.088N·m

(0.9kgf·cm). However, as this is a required value at the time of

production, use the value as a measuring stick when

proceeding repair services. (See "SERVICE NOTE" as for

tightening torque.)

3.1.2 Destination of connectors

3.1.3 Disconnection of connectors (Wires)

Fig.3-1-1

3.1.4 Tools required for disassembly and assembly

Fig.3-1-2

•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.

(∗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.

(∗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.

CN2a

CN2b

MAIN CN101

MAIN CN103

CONN. No. PIN No.CONNECTOR

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: The connector of the side to remove

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

MONI BW CN761

MINI BW CN762

FPC Connector

Wire

FPC Connector

Wire

FPC Connector Lock

Wire

FPC Connector

Lock

Wire

FPC

Connector

Lock

B-B Connector

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

· Pull both ends of the connector in the arrow

direction, remove the lock and disconnect the flat

wire.

· Pull the both ends of the board in the direction of the

arrow, and remove the 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.

· 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.

· 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.

Cleaning cloth

KSMM-01

Torque driver

YTU94088

Bit

YTU94088-003

Chip IC replacement jig

PTS40844-2

Tweezers

P-895

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

TOP COVER ASSY

UPPER ASSY

(Inc. VF ASSY,

SPEAKER/MONITOR)

E.VF UNIT(B/W)

C2-1

C2-2

4(S1a), 3(L1a),CN1a

(S2a),2(S2b),3(S2c)

2(SD1a),

L2,CN2a,b

2(S8),L8,CN8a

NOTE 8

[1]

[2]

[8]

STEP

No. PART NOTE

Fig.

No. POINT

(No.YF180)1-7

3.2.2 ASSEMBLY/DISASSEMBLY OF CABINET PARTS AND ELECTRICAL PARTS

zDisassembly procedure

NOTE1:

When removing the BOTTOM COVER ASSY, open and pull

up the COVER (SD).

NOTE2:

Pull out the GRIP BELT from the hook and leave it released

before removing the HDD COVER ASSY.

NOTE3a:

During the procedure, be careful in handling the parts. Pay

special attention not to give any external shock to the HDD.

NOTE3b:

When the HDD is replaced, be sure to refer to REPLACING

HDD in "SECTION2 SPECIFIC SERVICE INSTRUCTIONS"

for the procedure after HDD replacement.

NOTE3c:

Be careful as the GELS at the four corners are easily come

off when the HDD is removed from the main unit. If the

GELS come off, be sure to attach them in the correct direc-

tion shown in the figure.

Attach the GELS with their HOLES on the same side of the

connector.

NOTE3d:

When connecting the FPC to the connector, insert the FPC

straight into the connector. When locking the connector, be

careful not to give so much load that it bends the board.

NOTE3e:

In this procedure, the FPC connected to the HDD connector

is not removed. If the FPC is removed due to broken wire,

be careful in attachment direction. Be sure to connect the

STOPPER side to the HDD.

Pay attention as wrong attachment could damage the HDD.

NOTE3f:

Be careful with the wiring.

NOTE5:

When attaching, be sure to fit the two positioning studs in the

holes.

NOTE8:

During the procedure, do not touch the terminals (elec-

trodes).

NOTE9a:

When attaching, be careful with the wiring (MIC).

NOTE9b:

Rfer to 3.2.3 ASSEMBLY/DISASSEMBLY OF [9] FRONT

ASSY of FRONT ASSY.

NOTE10:

When attaching, be careful with the wiring (MIC).

NOTE11a:

When removing the screw No.30, open the MONITOR AS-

SY, and then remove the screw paying attention not to dam-

age the screen.

NOTE11b:

When removing, release the connector lock, and then pull

out the FPC together with the UPPER ASSY.

NOTE12a:

During the procedure, be careful to avoid electric shock.

NOTE12b:

When removing, be careful not to break the parts as the

hooks behind the STROBE ASSY make removal difficult.

NOTE15a:

During the procedure, be careful in handling the parts

NOTE15b:

Refer to 3.2.5

DISASSEMBLY OF [15] OP BLOCK ASSY/

CCD BOARD ASSY

of OP BLOCK ASSY.

NOTE16a:

When removing, remove the screw No.43 first to release the

FPC, and then pull out the FPC from the connector.

NOTE16b:

During the procedure, be careful not to damage the parts.

NOTE16c:

When attaching, be careful with the wiring.

NOTE17:

When attaching, be careful with the wiring.

NOTE18:

Refer to 3.2.4 DISASSEMBLY OF [18] MONITOR ASSY of

MONITOR ASSY.

zDestination of connectors

[1]

[2]

[3]

[4]

[5]

[6]

[7]

[8]

[9]

[10]

[11]

[12]

[13]

[14]

[15]

[16]

[17]

[18]

3-2-1

3-2-2

3-2-3

3-2-4

3-2-5

3-2-6

3-2-7

3-2-8

3-2-9

3-2-10

3-2-11

3-2-12

3-2-13

3-2-14

3-2-15-1

/3-2-15-2

3-2-16-1

/3-2-16-2

3-2-17

NOTE1

NOTE2

NOTE3a,b,c,d,e,f

NOTE5

NOTE8

NOTE9a,b

NOTE10

NOTE11a,b

NOTE12a,b

NOTE15a,b

NOTE16a,b,c

NOTE17

NOTE18

BOTTOM COVER ASSY

HDD COVER ASSY

HDD

HDD CASE ASSY

OPE.UNIT

REAR COVER ASSY

TOP COVER ASSY

BATT TERMINAL BOARD ASSY

FRONT ASSY

MIC

UPPER ASSY

STROBE ASSY

MAIN BOARD ASSY

SHIELD MAIN ASSY

OP BLOCK ASSY

OPE. BOARD ASSY

SPEAKER

MONITOR ASSY

4(S1),L1a,3(L1b)

GRIP BELT,2(S2a),2(S2b),

L2a,b,c,d

CN3

4(S4a),S4b

CN5,S5,L5a,b,c,2(L5d)

S6a,4(S6b),L6

S7a,3(S7b),L7a,b

S8,2(L8),CN8

S9a,2(S9b),L9a,b,CN9

2(S10),L10a,b,PLATE(MIC)

CN11,3(S11),3(L11)

CN12,2(S12),L12a,b,2(L12c)

CN13a,b,2(S13)

3(S14)

3(S15),2(L15)

S16,CN16a,3(S16),

2(L16a),L16b,CN16b

SPEACER,2(S17),

L17a,b,c,BKT(SPEAKER)

2(S18),2(L18)

STEP

No. PART NAME Fig.

No. POINT NOTE

CN3 MAIN CN102 HDD - 40

CN5 MAIN CN104 OPE.UNIT - 10

CN8 MAIN CN103

BATT TERMINAL BOARD ASSY

- 6

CN9 MAIN CN107 MIC - 4

CN11 MAIN CN101 OPE CN401 30

CN12 MAIN CN109 STROBE ASSY - 14

CN13a MAIN CN106 OP BLOCK ASSY - 24

CN13b MAIN CN105 CCD CN802 61

CN16a MAIN CN402 MONITOR CN7601 22/23

CN16b MAIN CN403 SPEAKER - 2

CN.

No.

CONNECTOR

1-8 (No.YF180)

Fig.3-2-1

Fig.3-2-2

Fig.3-2-3

Fig.3-2-4

[1]

(S1)

L1a

L1b

NOTE1

COVER(SD)

GRIP BELT

HOOK

(S2a)

(S2b)

L2d

L2c

L2b

L2a

(S2a)

[2]

NOTE2

HOLE

CONNECTOR

SHIELD

(HDD)

FPC

HDD

MAIN PWB

LABEL

STOPPER

NOTE3c

NOTE3f

FPC

CN3

NOTE3a,b

NOTE3e

NOTE3d

[3]

[4]

(S4a)

(S4b)

(S4a)

(No.YF180)1-9

Fig.3-2-5

Fig.3-2-6

Fig.3-2-7

Fig.3-2-8

L5a

L5b

L5d

HOLE

L5c

CN5

(S5)

[5]

NOTE5

(S6b)

(S6a)

(S6b) 17

(S6b)

[6]

WIRE

[7]

[8]

NOTE8

L7b L7a

CN8

(S7b)

(S7a)

(S8)

(S7b)

(S9a)

(S9b)

L9a

L9b

CN9

WIRE(MIC)

(S9b)

[9]

NOTE9

NOTE9a

NOTE9b

1-10 (No.YF180)

Fig.3-2-9

Fig.3-2-10

Fig.3-2-11

Fig.3-2-12

NOTE10

[10]

(S10)

PLATE(MIC)

L10a

L10b

[11]

CN11

L11

(S11)

NOTE11b

NOTE11a

CN12

L12b

L12c

L12a

[12]

(S12)

NOTE12b

NOTE12a

(S12)

CN13a

CN13b

[13]

(S13)

(No.YF180)1-11

Fig.3-2-13

Fig.3-2-14

Fig.3-2-15-1

Fig.3-2-15-2

(S14)

(S14) 39

(S14)

[14]

(S15) 42

(S15)

L15

[15]

NOTE15a,b

0.118 N࡮m (1.2kgf࡮cm)

(S15)

FPC(MONITOR)

L16a

L16b

(S16)

(S16) 46

(S16)

CN16b

CN16a

NOTE16a

NOTE16c

SW(LCD_OPEN)

NOTE16b

[16]

NOTE16c

WIRE(SPEAKER)

1-12 (No.YF180)

Fig.3-2-16-1

Fig.3-2-16-2

Fig.3-2-17

BKT(SPEAKER)

SPACER

[17]

(S17)

L17a

L17b

L17c

NOTE17

WIRE(SPEAKER)

SPACER

0.198 N࡮m (2.0kgf࡮cm)

[18]

(S18) 50

(S18)

L18

NOTE18

(No.YF180)1-13

3.2.3 ASSEMBLY/DISASSEMBLY OF [9] FRONT ASSY

zCAUTIONS

(1) As the FRONT ASSY has complicated structure, do not

disassemble if not needed.

(2) After reassembling, check the smooth slide operation of

the two BARRIERS.

zDisassembly procedure

(1) Remove the COVER (MIC).

(2) Remove the TORSION SPRING.

NOTE9a:

During the procedure, be careful not to break, deform,

or lose any parts.

(3) Remove the two SPECIAL SCREWS (1 and 2), and then

remove the BASE (BARRIER).

(4) Remove the SLIDER.

(5) Remove the KNOB.

(6) Remove the BARRIER (A) and the ARM together as as-

sembled.

NOTE9b:

Removing the ARM from the BARRIER (A) at a wrong

angle could cause damage or deformation of the at-

tachment part.

(7) Remove the BARRIER (B).

zAssembly procedure

(1) Attach the BARRIER (B).

NOTE9c:

Be careful with the attachment direction. Attach the

BARRIER (B) with its wrinkle side facing outside.

(2) With the ARM assembled, attach the BARRIER (A) by fit-

ting the ARM BOSS into the COVER ASSY hole.

(3) Attach the KNOB.

(4) Attach the SLIDER.

NOTE9d:

Attach the SLIDER by placing the KNOB hole and the

ARM BOSS parallel as shown in the figure.

(5) Attach the BASE (BARRIER), check if there is no uplift

or unevenness, and then tighten with the two screws (1

and 2).

(6) Attach the TORSION SPRING.

NOTE9e:

After the attachment, move the KNOB to check the

smooth operation of the two BARRIERS (A and B)

(7) Attach the COVER (MIC).

Fig.3-2-18

Boss of ARM

SPRING

TORSION

Boss of

BASE(BARRIER)

DITAIL OF KNOB AND SLIDER

KNOB ARM

SLIDER

Adjust the KNOB hole

and the SLIDER hole. Place the ARM BOSS

into the SLIDER frame.

Attach the SLIDER by placing the KNOB hole

and the ARM BOSS parallel.

L9a

L9b

SLIDER

ARM

BOSS

BARRIER(A)

BARRIER(B)

KNOB

BASE(BARRIER)

TORSION SPRING

L9c

NOTE9a,e

NOTE9e

NOTE9d

NOTE9e

NOTE9c,e

NOTE9b

COVER(MIC)

(S9)

1-14 (No.YF180)

3.2.4 DISASSEMBLY OF [18] MONITOR ASSY

zCAUTIONS

(1) During the procedure, be careful in handling the LCD

MODULE and other parts. Pay special attention not to

damage or stain the monitor screen.

If fingerprints are left on the screen, wipe them with clean

chamois leather or a cleaning cloth.

zRemoving MONITOR ASSY

(1) Remove the two screws (1 and 2).

(2) Turn the HINGE UNIT ASSY 90°, and remove the two

screws (3 and 4).

(3) Remove the MONI.COVER ASSY by removing the four

hooks (L18a-d).

NOTE18a:

During the procedure, be careful with the handling of

the BUTTON (MONI) located under the MONI BOARD

ASSY.

As the BUTTON (MONI) is held under the COVER, it

may be uplifted or misaligned when the COVER is re-

moved.

(4) Release the lock of the connector (CN18a), and remove

the HINGE UNIT by lifting it up.

NOTE18b:

During the procedure, be careful in handling the FPC.

(5) Release the lock of the connector (CN18b), and pull out

the FPC.

(6) Remove the two screws (5 and 6), and remove the MON-

ITOR BOARD ASSY .

NOTE18c:

During the procedure, be careful with the handling of

the BUTTON (MONI) underneath.

As the BUTTON (MONI) is held under the COVER, it

may be uplifted or misaligned when the COVER is re-

moved.

NOTE18d:

When attaching the MONITOR BOARD ASSY, be

careful to avoid any misalignment or unevenness of

the parts underneath.

Attach the MONITOR BOARD ASSY by lifting up the

MONITOR CASE as the KNOB (CURSOR) that is at-

tached to the BOARD sticks out toward the LCD

screen.

(7) Remove the SHEET (M.REF), LIGHT GUIDE, SHEET

(M/DIFF), SHEET(BEF)2, and the SHEET(BEF)1.

NOTE18e:

When attaching, insert one side of the SHEET (M/

DIFF) under the LCD CASE RIB.

NOTE18f:

When attaching, insert each tab on both sides of the

SHEET (M.REF) into the LCD CASE notch.

(8) Remove the LCD CASE, SPACER(LCD-2), LCD MOD-

ULE, SPACER(LCD) and the LCD BKT ASSY.

NOTE18g:

During the procedure, handle the five parts (LCD CASE,

SPACER(LCD-2), LCD MODULE, SPACER(LCD) and

the LCD BKT ASSY) together.

zRemoving HINGE UNIT ASSY

(1) Remove the screw (7), and Remove the HINGE COV-

ER(U).

(2) Remove the HINGE COVER(L).

(3) Remove the MAGNET.

NOTE18h:

During the procedure, be careful in handling the mag-

net.

When attaching, set the N pole outside as shown in

the figure. Be careful when removing as there is no

marking.

NOTE18j:

During the procedure, be careful in handling the FPC.

NOTE18k:

The FPC, with its connection to the MONITOR BOARD

ASSY facing inward, is rolled around the axis (shaft) of

the HINGE UNIT ASSEY rotation 2.5 rounds

(2.5times).

(No.YF180)1-15

Fig.3-2-19

SHEET(M.REF)

LIGHT GUIDE

SHEET(M/DIFF)

SHEET(BEF)2

SHEET(BEF)1

BUTTON(MONI)

LCD CASE RIB

LCD MODULE

SPACER(LCD)

(REINFORCED SIDE)

SPACER(LCD-2)

LCD BKT ASSY

ASSY

LCD CASE

MONI CASE

MONI.COVER ASSY

BOARD

ASSY

MAGNET

FPC

KNOB

HINGE COVER(L)

HINGE COVER(U)

HINGE UNIT ASSY (CURSOR) MONITOR

BOARD

MONITOR

(S18c)

(S18b)

(S18a)

(S18a) 6

(S18a)

(S18b)

L18g

L18h L18j

L18m

L18k

L18a

L18b

L18c

L18d

L18e CN18a

CN18b

L18f

NOTE18g

NOTE18b

NOTE18f

NOTE18d

NOTE18e

NOTE18d

NOTE18a

NOTE18e

NOTE18a,c

NOTE18f

NOTE18h

NOTE18j,k

0.069 N࡮m (0.7kgf࡮cm)

0.198 N࡮m (2.0kgf࡮cm)

1-16 (No.YF180)

3.2.5 DISASSEMBLY OF [15] OP BLOCK ASSY/CCD BOARD ASSY

zPrecautions

(1) Be careful in handling the CCD IMAGE SENSOR, OPTICAL

LPF and the LENS components.

Pay special attention to the surfaces to protect them from

stains, dust, or scratches.

If the surfaces are soiled with finger prints or other stains,

wipe them off with silicon paper,

(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 ASSY.

zDisassembly of OP BLOCK ASSY / CCD BOARD ASSY

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

SHIELD(CCD-2M)1 ASSY.

(2) Remove the two screws (3,4), and then remove the CCD

BOARD ASSY and the CCD BASE ASSY.

NOTE15a:

When removing the CCD BASE ASSY, be careful in

handling as the CCD IMAGE SENSOR may be removed

together with the SHEET and the OP LPF attached.

NOTE15b:

Be careful in handling the CCD BASE ASSY as this

CCD BASE ASSY is surface mounted unlike previous

models.

When handling the CCD BOARD ASSY or removing

the FPC with the CCD BASE ASSY mounted, always

hold the side of the CCD BOARD ASSY to prevent

part detachment.

NOTE15c:

Replace the CCD IMAGE SENSOR as a CCD BASE

ASSY, not as a single part replacement.

(3) Remove the SHEET and the OP LPF.

(4) Remove the SHIELD from the SHIELD (CCD) 1 ASSY,

unsolder the 24 soldered points (SD15a) on the CCD

BOARD ASSY, and then remove the CCD BASE ASSY

and the SHIELD (CCD) 1 ASSY.

(5) Remove the two screws (5,6), and then remove the CCD

BASE ASSY.

zReplacement of service repair parts

The service repair parts for the OP BLOCK ASSY are as listed below.

When replacing parts, be careful not to cut the FPCs or dam-

age any parts by soldering (excessive heat).

(1) FOCUS MOTOR UNIT

(2) ZOOM MOTOR UNIT

(3) IRIS MOTOR UNIT

NOTE 15d:

When replacing the FOCUS MOTOR UNIT or the ZOOM

MOTOR UNIT, solder the FPC at a space of about 0.5 mm

above the terminal pin.

NOTE 15e:

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

Fig.3-2-20

CCD BOARD ASSY

CCD BASE

ASSY

/CCD BASE ASSY

CCD BASE ASSY

OP BLOCK ASSY

SENSOR

IRIS MOTOR UNIT

ZOOM MOTOR UNIT

SHIELD

SHEET

OP LPF

SHIELD

(CCD)1

ASSY

SHIELD

(CCD)1

ASSY

SHIELD

(CCD-2M)

ASSY

FOCUS MOTOR

UNIT

NOTE15a

NOTE15a,b,c

NOTE15d

NOTE15d,e

NOTE15a,b

(S15c)

(S15b) 4

(S15b)

(S15c)

SD15b

SD15a

L15

(S15a)

(S15c)

0.147 N࡮m (1.5kgf࡮cm)

0.069 N࡮m (1.7kgf࡮cm)

(No.YF180)1-17

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 (IC1005 of MAIN board)

• OP BLOCK ASSEMBLY

• MONITOR 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

•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 adjustment of the camera system.

•Cleaning Cloth

Recommended the Cleaning cloth to wipe down the video

heads, mechanism (tape transport system), optical lens sur-

face.

Torque Driver

YTU94088

Bit

YTU94088-003

Chip IC Replacement Jig

PTS40844-2

Tweezers

P-895

Cleaning Cloth

KSMM-01

Charing Battery Adjuatment Jig

YTU93112A

INF Adjustment Lens Holder

YTU94087

Mini Stand

YTU93108

Gray Scale Chart

YTU94133A

Color Bar Chart

YTU94133C

Focus Chart

YTU92001-018

PC Cable

QAM0099-002

Jig Connector Cable

YTU93106D

Communication Cable

YTU93111

Service Support System

YTU94057-102

INF Adjustment Lens

YTU92001B

Light Box Assembly

YTU93096A

1-18 (No.YF180)

•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 for operating the

Videocamera in the stripped-down condition such as the sta-

tus 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.

•Mini Stand

To be used together with the INF adjustment lens holder. For

the usage of the Mini 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.

•Focus 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.

•Service Support System

To be used for adjustment with a personal computer. Software

can be downloaded also from JS-net.

•Communication Cable

Connect the Communication cable between the PC cable and

Jig connector cable when performing a PC adjustment.

•PC Cable

To be used to connect the Videocamera and a personal computer

with each other when a personal computer issued for adjustment.

•Jig Connector Cable

Connected to JIG CONNECTOR of the main board and used

for electrical adjustment, etc.

•Charging Battery Adjustment Jig

This Jig is used for the adjustment of the camcorders that have

Main Body battery charging function.

4.2 JIG CONNECTOR CABLE CONNECTION

Connection procedure

NOTE

•Be sure to turn the power “OFF”, when connecting the JIG

CONNECTOR CABLE.

If the JIG CONNECTOR CABLE is connected with the pow-

er “ON”, communication error may occur.

•Remove the four screws (1-4), and then remove the

B.COVER ASSY.

Fig.4-2-1

Fig.4-2-2

OSCILLOSCOPE

TO ENV_OUT

TO HID

TO AL_3VSYS

TO IF_RX

TO IF_TX

TO GND

BLUE

RED

WHITE

BLACK

PC CABLE

B.COVER ASSY

COMMUNICATION

CABLE

JIG CONNECTOR

CABLE

RS232C

COM PORT

COMMUNICATION

CABLE

JIG CONNECTOR JIG CONNECTOR

PERSONAL COMPUTER

JIG

CONNECTOR

JIG CONNECTOR CABLE [YTU93106D]

115

1630

(No.YF180)1-19

Jig connector diagrams

Fig.4-2-3

DSP_TDO

DSP_TCK

DSP_TMS

DSP_TDI

XDSPTRST

DSP_RST

REG_3.1V

UARXDO

UATXDO

AL_3VSYS

IF_TX

IF_RX

MOD0

SYS_RSTL

SYS_TCK

MON_G

SYS_TRSTL

GND

SYS_TDO

GND

SYS_TDI

IRU

SYS_TMS

JSEL0

JSEL1

EXTRGO

MVD

KENTO

GND

KENTO2

DSP_TDO

DSP_TMS

XDSPTRST

REG_3.1V

UATXDO

IF_TX

MOD0

SYS_TCK

SYS_TRSTL

SYS_TDO

SYS_TDI

SYS_TMS

JSEL1

MVD

GND

DSP_TCK

DSP_TDI

DSP_RST

UARXDO

AL_3VSYS

IF_RX

SYS_RSTL

MON_G

GND

IRU

JSEL0

EXTRGO

KENTO

KENTO2

JIG CONNECTOR CABLE (YTU93106D)

MAIN CN110 JIG CONN. BOARD

(PIN NO.)

1-20 (No.YF180)

SECTION 5

TROUBLE SHOOTING

5.1 SERVICE NOTE

[15]

3-2-20

3-2-19

[1] [2] [4][3] [5] [6] [7] [8]

1 2 3 4 5 6 7 8 - 9 10 11 12 13 14

3-2-1 3-2-2

3-2-3

3-2-5

3-2-4 3-2-6

3-2-7

ade e

[9] [10] [11] [12] [14] [15] [16] [17] [18]

15 16 17 18 19 20 21 22 23 24

3-2-8 3-2-9 3-2-10 3-2-11

[13]

3-2-12 3-2-13 3-2-14

aacb

3-2-15-1 3-2-16-1 3-2-17

[9]

1 2

1 2 3 4 5 6 7

1 2 3 4 5 6 7 8 9 10 11 12 13

3-2-18

[18]

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Symbol No.

Removing order of screw

Place to stick screw

Reference drawing (Fig.No.)

Screw tightening torque

Symbol No.

Removing order of screw

Place to stick screw

Reference drawing (Fig.No.)

Screw tightening torque

Symbol No.

Removing order of screw

Place to stick screw

Reference drawing (Fig.No.)

Screw tightening torque

Symbol No.

Removing order of screw

Place to stick screw

Reference drawing (Fig.No.)

Screw tightening torque

CABINET PARTS AND ELECTRICAL PARTS(1)

[9]FRONT ASSY

[18]MONITOR ASSY

CABINET PARTS AND ELECTRICAL PARTS(2)

NOTE:

㧝)㧖and㧖㧖(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.

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

㧞)Tightening torque for the screws

࡮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),

and tighten the screw manually.

࡮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.