JVC DR-MV1SUC, DR-MV1SUS service manual

Preliminary

SERVICE MANUAL

DVD VIDEO RECORDER & VIDEO CASSETTE RECORDER

YD00620044

DR-MV1SUC, DR-MV1SUS

DVDTV

CABLE/DBS

TV/CBL/DBS

DVD

VCR

/DVD

TIMER

/DVD

TIMER

NUMBER/ TV CH / DVD CHNUMBER/ TV CH / DVD CH

ABC DEF

JKL MNO

GHI

TUV

PQRS WXYZ

MEMO/MARK

AUX

CANCEL

PROG/CHECK

DISPLAYON SCREEN

PROGRESSIVE

VCR PLUS+

SCAN

TION

VIGA

P M

ENTER

PREVIOUS NEXT

SLOW

PLAY/SELECT

CLEAR

PAUSESTOP/

REMAIN REC

REC MODE

ANGLE

LIVE CHECK

TV/VCR

TV/DVD

SUBTITLE

AUDIO

TV/CBL/DVD

VOL.

POWER

VCR/DVD TIMER VCR REC OPEN/CLOSE STOP PLAY

VCR EJECT

PULL-OPEN

DVD

S-VIDEO

VIDEO (MONO) L - AUDIO - R

F-1

TIMER DVD DVDREC VCR DUBBING

REC PAUSE REW FF

REMAIN

REC MODE SLOW

<< >>

PULL-OPEN

REC LINK

DV IN

DVD

DR-MV1SUC, DR-MV1SUS [D3RV21]

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

TABLE OF CONTENTS

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

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

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15

No.YD006

2004/4

SPECIFICATION

DR-MV1SUC DR-MV1SUS

GENERAL

Power requirement AC 120 V, 60 Hz

Power consumption

Power on 43 W

Power off 16.5 W

Temperature

Operating 5°C to 35°C (41°F to 95°F)

Storage -20°C to 60°C (-4°F to 140°F)

Operating position Horizontal only

Dimensions (W × H × D) 435 mm × 96 mm × 347 mm (17-3/16" × 3-13/16" × 13-11/16")

Weight 6.1 kg (13.5 lbs)

VIDEO/AUDIO (DVD Deck)

Recording format DVD-RAM: DVD Video Recording format

DVD-RW: DVD-Video format, DVD Video Recording format

Recording time Maximum 8 hours (with 4.7 GB disc)

Audio recording system Dolby Digital (2 ch), Linear PCM (XP mode only)

Video recording compression system MPEG2 (CBR/VBR)

Input/Output

S-video input Y: 0.8 - 1.2 Vp-p, 75 Ω, C: 0.2 - 0.4 Vp-p, 75 Ω

S-video output Y: 1.0 Vp-p, 75 Ω, C: 0.3 Vp-p, 75 Ω

Video input 0.5 - 2.0 Vp-p, 75 Ω (pin jack)

Video output 1.0 Vp-p, 75 Ω (pin jack)

Audio input -8 dB, 50 kΩ (pin jack), Corresponding to mono (left)

Audio output -8 dB, 1 kΩ (pin jack)

i.Link 4-pin for DV input

Component video output Y: 1.0 Vp-p, 75 Ω, CB/CR, PB/PR: 0.7 Vp-p, 75 Ω

Digital audio output Optical: -18 dBm, 660 nm, Coaxial: 0.7 Vp-p, 75 Ω,

VIDEO/AUDIO (VCR Deck)

Signal system NTSC color signal and EIA monochrome signal, 525 lines/60 fields

Recording system DA4 (Double Azimuth) head helical scan system

Format VHS NTSC standard

Maximum recording time

(SP) 210 min. with ST-210 video cassette

(EP) 630 min. with ST-210 video cassette

Signal-to-noise ratio 45 dB

Horizontal resolution 230 lines

Frequency range 70 Hz to 10,000 Hz (Normal audio), 20 Hz to 20,000 Hz (Hi-Fi audio)

Input/Output RCA connectors: IN

TUNER/TIMER

Tuning system Frequency synthesized tuner

Channel coverage VHF: Channels 2 - 13, UHF: Channels 14 - 69, CATV: 113 Channels

RF output Channel 3 or 4 (switchable; preset to Channel 3 when shipped) 75 Ω, unbalanced

Memory backup time Approx. 5 seconds

ACCESSORIES

Provided accessories RF cable × 1, Infrared remote control unit, "AA" battery

(XP): Approx. 1 hour, (SP): Approx. 2 hours, (LP): Approx. 4 hours

(EP): Approx. 6 hours, (FR): Approx. 1 hour - 8 hours

Corresponding to Dolby Digital and DTS Digital Surround

Bit stream Selectable in digital audio output setting menu

× 2

• Specifications shown are for SP mode unless otherwise specified.

• E.& O.E. Design and specifications subject to change without notice.

• VCR Plus+, C

• The VCR Plus+ system is manufactured under license from Gemstar Development Corporation.

•DSS Corporation.

• Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarks of Dolby Laboratories.

• "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems, Inc.

• (i.Link) refers to the IEEE1394-1995 industry specification and extensions thereof. The logo is used for products compliant with the i.Link standard.

and PlusCode are registered trademarks of Gemstar Development Corporation.

is an official trademark of DIRECTV, Inc., a unit of GM Hughes Electronics. DISH NetworkTM is a trademark of Echostar Communications

DVD-R: DVD-Video format

Corresponding to copy protection

× 2, OUT × 1

RF cable × 3, Antenna splitter, Infrared remote control unit, "AA" battery × 2

1-2 (No.YD006)

SECTION 1

PRECAUTION

1.1 SAFTY PRECAUTIONS

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

1.1.1 Precautions during Servicing

(1) Locations requiring special caution are denoted by labels

and inscriptions on the cabinet, chassis and certain parts of the product.When performing service, be sure to read and comply with these and other cautionary notices appearing in the operation and service manuals.

(2) Parts identified by the symbol and shaded ( ) parts

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

NOTE :

Parts in this category also include those specified to comply with X-ray emission standards for products using cathode ray tubes and those specified for compliance with various regulations regarding spurious radiation emission.

(3) Fuse replacement caution notice.

Caution for continued protection against fire hazard. Replace only with same type and rated fuse(s) as specified.

(4) Use specified internal wiring. Note especially:

• Wires covered with PVC tubing

• Double insulated wires

• High voltage leads

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

Note especially:

• Insulation Tape

• PVC tubing

•Spacers

• Insulation sheets for transistors

•Barrier

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

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

Consequently, when servicing these products, replace the cathode ray tubes and other parts with only the specified parts. Under no circumstances attempt to modify these circuits.Unauthorized modification can increase the high voltage value and cause X-ray emission from the cathode ray tube.

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

the power transformer in sets where the connections between the power cord and power trans former primary lead wires are performed using crimp type connectors, if replacing the connectors is unavoidable, in order to prevent safety hazards, perform carefully and precisely according to the following steps.

• Connector part number :E03830-001

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

• Replacement procedure

a) Remove the old connector by cutting the wires at a

point close to the connector.Important : Do not reuse a connector (discard it).

cut close to connector

Fig.1-1-3

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

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

15 mm

Fig.1-1-4

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

sert the wires fully into the connector.

Metal sleeve

Fig.1-1-1

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

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

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

pointed parts.

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

kg of force in any direction will not loosen it.

Power cord

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

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

Connector

Fig.1-1-5

d) As shown in Fig.1-1-6, use the crimping tool to crimp

the metal sleeve at the center position. Be sure to crimp fully to the complete closure of the tool.

1.2 5

5.5

Crimping tool

Fig.1-1-6

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

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. cente

of metal sleev

Conductors extended

Fig.1-1-7

(No.YD006)1-3

1.1.2 Safety Check after Servicing

Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts and wires have been returned to original positions, Afterwards, perform the following tests and confirm the specified values in order to verify compliance with safety standards.

(1) Insulation resistance test

Confirm the specified insulation resistance or greater between power cord plug prongs and externally exposed parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.).See table 1 below.

(2) Dielectric strength test

Confirm specified dielectric strength or greater between power cord plug prongs and exposed accessible parts of the set (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). See Fig.1-1-11 below.

(3) Clearance distance

When replacing primary circuit components, confirm specified clearance distance (d), (d') between soldered terminals, and between terminals and surrounding metallic parts. See Fig.1-1-11 below.

Chassis

Power cord primary wire

Fig.1-1-8

(4) Leakage current test

Confirm specified or lower leakage current between earth ground/power cord plug prongs and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.). Measuring Method : (Power ON)Insert load Z between earth ground/power cord plug prongs and externally exposed accessible parts. Use an AC voltmeter to measure across both terminals of load Z. See Fig.1-1-9 and following Fig.1-1-12.

Externally exposed accessible part

Fig.1-1-9

(5) Grounding (Class 1 model only)

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

AC inlet

Earth pin

Exposed accessible part

MIlli ohm meter

Grounding Specifications

Region

USA & Canada

Europe & Australia

Grounding Impedance (Z

Z 0.1 ohm

Z 0.5 ohm

)

Fig.1-1-10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

200 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Insulation Resistance (R

R 1 M /500 V DC

1 M R 12 M /500 V DC

R 10 M /500 V DC

)

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 minute

AC 1 kV 1 minute AC 3 kV 1 minute

AC 1.5 kV 1 minute

(

Class

(

Class

Clearance Distance (d), (d'

d, d' 3 mm

d, d' 4 mm

d, d' 3.2 mm

d 4 m m

)

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

)

Fig.1-1-11

AC Line Voltage

100 V

110 to 130 V

220 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Load Z

0.15

1.5

Leakage Current (i)

i 1 mA rms

i 0.5 mA rms

i 0.7 mA peak i 2 mA dc

a, b, c

Exposed accessible parts

Antenna earth terminals

Other terminals

Fig.1-1-12

NOTE :

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

)

1-4 (No.YD006)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 Service position

This unit has been designed so that the Mechanism and Main board assemblies can be removed together from the bottom chassis. Before diagnosing or servicing the circuit boards, take out the major parts from the bottom chassis.

2.1.1 How to set the "Service position"

(1) Refer to the disassembly procedure and perform the disas-

sembly of the major parts before removing the Mechanism assembly.

(2) Remove the screws that fix the Mechanism, Main board as-

sembly to the bottom chassis. If any other screws are used to fix the boards, remove them also.

(3) Remove the combined Mechanism, DVD unit, regulator,

digital, junction and Main board assemblies. (4) If any other major parts are used, remove them also. (5) Connect the wires and connectors of the major parts that

have been removed in steps (1) to (4). (Refer to Fig. 2-1a.) (6) Place the combined Mechanism, Main board and other

board assemblies upside down. (7) Insert the power cord plug into the power outlet and then

proceed with the diagnostics and servicing of the board as-

sembly.

Notes:

• Before inserting the power cord plug into the power out-

let, make sure that none of the electrical parts are able to short-circuit between the workbench and the board assembly.

• For the disassembly procedure of the major parts and

details of the precautions to be taken, see "Removing the major parts".

• If there are wire connections from the Main board and

Mechanism assemblies to the other major parts, be sure to remove them (including wires connected to the major parts) first before performing step (2).

• When carrying out diagnosis and repair of the Main

board assembly in the "Service position", be sure to ground both the Main board and Mechanism assemblies. If they are improperly grounded, there may be noise on the playback picture or FDP counter display may move even when the mechanism is kept in an inoperative status.

• In order to diagnose the playback or recording of the

cassette tape, set the Mechanism assembly to the required mode before placing it upside down. If the mechanism mode is changed (including ejection) while it is in an upside down position the tape inside may be damaged.

• For some models, the mechanism and board assem-

blies are attached by connectors only. When carrying out a diagnosis or repair of the boards in the "Service position", make sure that the connectors are not disconnected.

Regulator board assy

Junction board assy

Digital board assy

Jack board assy

Switch display board assy Operation jack board assy

Main board assy

TP111 D.FF TP106 PB FM TP2253 A.PB FM TP4001 CTL.P

Fig.2-1a

2.2 Jig RCU mode

This unit uses the following two modes for receiving remote control codes.

(1) User RCU mode:Ordinary mode for use by the user.

(2) Jig RCU mode: Mode for use in production and servicing. When using the Jig RCU, it is required to set the VCR to the Jig RCU mode (the mode in which codes from the Jig RCU can be received). As both of the above two modes are stored in the EEPROM, it is required to set the VCR back to the User RCU mode each time that an adjustment is made or to check that the necessary operations have been completed.These modes can be set by the operations described below.

Note:

• When the unit is set to JIG mode and when the unit is

under JIG mode, the remote control unit attached to product operates only in "Remote Control Code 1". Since the unit is in "Remote Control Code 3" when it is shipped and just after its batteries are changed, "Remote Control Code 3" needs to be changed to "Remote Control Code 1."

• Confirm the RCU mode when exchanged parts. Since

some SERVICE PARTS sets the VCR to the Jig RCU mode as initial setting. Therefore please set the VCR to the user RCU mode after replacing the EEPROM.

User RCU mode

Jig RCU mode

Fig.2-2a User/Jig RCU mode

( blinked)

(No.YD006)1-5

2.2.1 Changing Remote Control Code

(1) Slide the TV/CABLE/DBS/DVD switch to DVD. (2) Press the numeric button "1" of the remote control unit

while pressing the "SET UP" button of the remote control unit. Then,press the "ENTER" button, and then release the

"SET UP" button. (3) Press the "POWER" button on the unit to turn off the unit. (4) Press the "PLAY" button on the unit for over 5 seconds

while the unit is turned off. The code currently set appears

on the front display panel. (5) Press the "STOP" button on the remote control to change

the unit’s code. When FDP indicator displays "DVD1," it

means that the Remote Control Code has been changed to

"1."

2.2.2 Setting the Jig RCU mode

(1) Turn on the power. (2) Press the “VCR/DVD“ button repeatedly on the unit so that

the VCR lamp lights up on the unit. (3) Press the following remocon keys continuously within 2

seconds " SET UP " → " 2 " → " 8 " → " ENTER ".

When the VCR is set to the Jig RCU mode, the symbols

( " : " ) in the time display of the FDP are blinked.

(Refer to Fig.2-2a User/Jig RCU mode)

2.2.3 Setting the User RCU mode

(1) Turn off the power. (2) Press the "REC" and "PAUSE" buttons of the VCR simul-

taneously. Alternatively, transmit the code "9D" from the

Jig RCU.

2.3 Mechanism service mode

This model has a unique function to enter the mechanism into every operation mode without loading of any cassette tape. This function is called the "Mechanism service mode".

2.3.1 How to set the "Mechanism service mode"

(1) Set the VCR to the Jig RCU mode (the mode in which

codes from the Jig RCU can be received) (2) Transmit the code "E5" from the Jig RCU. (3) Release the lug of the Cassette holder and then slide the

Cassette holder toward the direction where the Cassette

holder is loaded by manually. (4) The cassette holder lowers and, when the loading has

completed, the mechanism enters the desired mode.

When the VCR is set to the Mechanism service mode, the

symbols ("HDD") in the FDP (LED) are turned on.

2.3.2 How to exit from the "Mechanism service mode"

(1) Unplug the power cord plug from the power outlet.

2.4 Maintenance and inspection

2.4.1 Cleaning

Regular cleaning of the transport system parts is desirable but practically impossible. So make it a rule to carry out cleaning of the tape transport system whenever the machine is serviced. When the video head, tape guide and/or brush get soiled, the playback picture may appear inferior or at worst disappear, resulting in possible tape damage.

Note:

• Absolutely avoid sweeping the upper drum vertically as

this will cause damage to the video head.

(1) When cleaning the upper drum (especially the video head),

soak a piece of closely woven cloth with alcohol and while

holding the cloth onto the upper drum by the fingers, turn

the upper drum counterclockwise.

(2) To clean the parts of the tape transport system other than

the upper drum, use a piece of closely woven cloth or a cotton swab soaked with alcohol.

(3) After cleaning, make sure that the cleaned parts are com-

pletely dry before using the cassette tape.

A/C head

Video heads

Fig.2-4a

2.4.2 Lubrication

With no need for periodical lubrication, you have only to lubricate new parts after replacement. If any oil or grease on contact parts is soiled, wipe it off and newly lubricate the parts.

Note:

• See the "mechanism assembly" diagram of the "parts

list" for the lubricating or greasing spots, and for the types of oil or grease to be used.

2.4.3 Suggested servicing schedule for main components

The following table indicates the suggested period for such service measures as cleaning, lubrication and replacement. In practice, the indicated periods will vary widely according to environmental and usage conditions. However, the indicated components should be inspected when a set is brought for service and the maintenance work performed if necessary. Also note that rubber parts may deform in time, even if the set is not used.

System Parts name

Operation hours

1000H 2000H

Drum assembly C,X X

A/C head C,X C,X

Pinch roller arm assembly C C

Tape transport

Full erase head C C

Tension arm assembly C C

Capstan motor (Shaft) C C

Guide arm assembly C C

Capstan motor X

Capstan brake assembly X

Main brake assembly X

Drive

Belt (Capstan) X X

Loading motor X

Clutch unit X

Worm gear X

Control plate X

Other Rotary encoder X

C : Cleaning X : Inspection or Replacement if necessary

1-6 (No.YD006)

SECTION 3

DISASSEMBLY

3.1 Removing the major parts

3.1.1 Destination of connectors

Two kinds of double-arrows in connection tables respectively

show kinds of connector/wires.

: The connector of the side to remove

CONN. No. PIN No.CONNECTOR

WR2a

WR2b

Main CN101

Main CN103

 Destination of connectors

CONN. No. PIN No.CONNECTOR

WR2a

WR2b

WR2c

WR3a

WR3b

WR4a

WR4b

WR5a

CN7108 (CN1001)

CN7109 (CN1002)

CN4104 (CN1801)

WR7a

WR7b

WR7c

WR7d

WR7e

WR8a

WR8b

Main

Junction

Main

Drum assembly

DVD unit

Junction

Jack

Junction

Main

Junction

Regulator

3.1.2 How to read the procedure table

This table shows the steps for disassembly of the externally furnished parts and board assemblies. Reverse these steps when re-assembling them.

Step/

Loc No.

[1] Top cover 3-1a

Part Name

Bracket 2(S1c)

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

Digital CN761

Digital CN762

CN3104

CN3102

CN7103

CN2001

CN7106

CN7108

CN7109

CN4104

CN7104

CN3103

CN2601

CN7107

CN5304

CN5301

CN5302

Operation jack

Switch display

A/C head

Main

Digital

Regulator

Digital

Main

Junction

Main

Junction

Main

Fun motor

Fig. No.

4(S1a),(S1b),3(L1a), <Note 1a> 2(SD1a),(P1a),(W1a), CN1(WR1a),

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

CN7201

CN7001

CN7002

CN2201

CN5303

CN1404

CN1001

CN1002

CN1801

CN501

CN7102

CN8001

CN7111

CN5501

CN5311

Point Note

CN1

P= Spring, W= Washer, S= Screw, L= Locking tab, SD= Solder, CN**(WR**)= Remove the wire (WR**) from the connector (CN**).

Note:

• The bracketed ( ) WR of the connector symbol are

assigned nos. in priority order and do not correspond to those on the spare parts list.

(5) Adjustment information for installation

3.1.3 Disassembly procedure

Step/

Loc No.

[1] [2]

[3]

[4]

[5]

[6] [7]

[8]

[9]

[10]

Part Name

Top cover Front panel assembly (Operation jack board assembly) (Switch display board assembly)

Mechanism assembly

(Drum assembly)

(Cleaner assembly) DVD unit (Bracket) Digital board assembly

Jack board assembly Junction board assembly

Regulator board assembly

Rear cover Main board assembly

Fig. No.

3-1d 3-1a, 3-1d

3-1b, 3-1c, 3-1d

3-1d

3-1d 3-1d

3-1d

3-1d 3-1d

Point Note

6(S1a) 3(L2a),5(L2b) CN3104(WR2a) CN3102(WR2b) CN7103(WR2c) CN2001(WR3a) 3(S3a),(S3b) CN(WR3b) (S3c),(S3d),(S3e) 2(L3a) 4(S4a),4(S4b) (WR4a),(WR4b) 4(S5a) CN7106(WR5a),CN7101 (CN1001),CN7109(CN1002) (S6a),CN4104(CN1801) (S7a),CN7104(WR7a), CN3103(WR7b),CN2601 (WR7c),CN7107(WR7d), CN5304(WR7e) 4(S8a) CN5301(WR8a), CN5302(WR8b) 2(S9a),5(S9b),2(S9c),3(L9a) 3(S10a)

• Be careful not to damage the connector and wire etc. during connection and disconnection.

• When connecting the flat wire to the connector, be careful with the flat wire direction.

• When reattaching the Front panel assembly, make sure that the door opener of the Side frame (R) is lowered in position prior to the reinstallation.

• When reattaching the Front panel assembly, pay careful attention to the switch lever of the Front panel assembly not to make it touch the switch knob of the Main board assembly from the side.

• When reattaching the Front panel assembly, lift the Cassette door slightly.

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

(1) Order of steps in Procedure

When reassembling, perform the step(s) in the reverse order. These numbers are also used as the identification (loca-

tion) No. of parts Figures. (2) Part name 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.

Door opener

Side frame(R)

Fig.3-1a

Switch lever

Switch knob

(No.YD006)1-7

• When reattaching the Mechanism assembly, secure the screws (S3a to S3b) in the order of 1,2,3.

• When reattaching the Mechanism assembly, be sure to align the phase of the Rotary encoder on the Main board assembly.

• When reattaching the Mechanism assembly, set the “Mechanism assembling mode”. [See “MECHANISM ASSEMBLY SERVICE MANUAL (No. 86700)”.]

• When reattaching the Mechanism assembly to the Main board assembly, take care not to damage the sensors and switch on the Main board assembly.

• When reattaching the Drum assembly, secure the screws (S3c to S3e) in the order of c, d, e.

(S3d)

Mechanism assembly

(S3c)

(S3e)

(S3d)

(S3e)

Drum assembly

<NOTE> Attach the Drum assembly appropriately, since the installation state of the Drum assembly influences the FM WAVEFORM LINEARITY greatly.

(S3c)

HOOK

Fig.3-1b

• When handling the drum assembly alone, hold it by the motor or shaft. Be careful not to touch other parts, especially the video heads. Also take care not to damage the connectors.

Shaft

Motor

Video heads

Fig.3-1c

1-8 (No.YD006)

+ 16 hidden pages