JVC DR-MX1SEF, DR-MX1SEK, DR-MX1SEU, DR-MX1SEY, DR-MX1SEZ Service Manual

SERVICE MANUAL

DVD / HDD VIDEO RECORDER & VIDEO CASSETTE RECORDER

YD04820051

DR-MX1SEF, DR-MX1SEK,

DR-MX1SEU, DR-MX1SEY,

DR-MX1SEZ

CABLE/DBS

DVD

TV

STANDBY/ON

TV/

VHS

DVD

TV/CBL/DBS

VIDEO

TIMER

VHS HDD DVD

TV VOLUME

CH

AUX

CANCEL

MEMO/MARK

LIVE

PROGRAM

EDITDUBBING

TV MUTING

NAVIGATIONTOP MENU

ENTER

MENU

RETURN

NEXTPREVIOUS

SLOWSLOW PLAY/SELECT

CLEAR

PAUSEREC

STOP/

JUMP

REC MODE

DISPLAY

ON SCREEN

SET UP

REMAIN

AUDIO

SUBTITLE

ANGLE

LIVE CHECK

REC LINK

PROGRESSIVE

STANDBY/ ON

S-VIDEO VIDEO

(MONO)

HDD/DVD

SCAN

L–AUDIO–R

F–1

CH

VRS – HDD – DVD –

RAM/R

W

VHS/HDD/DVD

DISPLAY

SELECT

VHS TIMER REC MODE

DV IN

DR-MX1SEF, DR-MX1SEK, DR-MX1SEU, DR-MX1SEY, DR-MX1SEZ [D4VC21]

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

(EF model)

(EK model)

(EU,EY,EZ model)

(EF model)

TABLE OF CONTENTS

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

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

COPYRIGHT © 2005 Victor Company of Japan, Limited

No.YD048

2005/1

SPECIFICATION

GENERAL

Power requirement AC 220 V - 240 V, 50 Hz / 60 Hz

Power consumption

Power on 47 W
Power off 16.6 W

Temperature

Operating 5°C to 35°C°

Storage -20°C to 60°C

Operating position Horizontal only

Dimensions (W × H × D) 435 mm × 96 mm × 383 mm

Weight 7.2 kg

Input/Output

Video input 0.5 - 2.0 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)

21-pin SCART connectors IN / OUT × 1, IN / DECODER × 1

Input / Output (HDD & DVD Deck Only)

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

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, Corresponding to copy protection

SAT Control Ø3.5mm

Digital audio output Optical: -18 dBm, 660 nm, Coaxial: 0.7 Vp-p, 75 Ω, Corresponding to Dolby Digital and DTS Digital Surround

VIDEO/AUDIO (DVD Deck)

Recording time Maximum 8 hours (with 4.7 GB disc), (XP): Approx. 1 hour, (SP): Approx. 2 hours, (LP): Approx. 4 hours

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

Video recording compression system MPEG2 (CBR/VBR)

VIDEO/AUDIO (HDD Deck)

Video recording compression system MPEG2 (VBR)

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

Recording time Maximum 300 hours (with 160 GB HDD), (XP): Approx. 34 hours, (SP): Approx. 69 hours, (LP): Approx. 138 hours

VIDEO/AUDIO (VHS Deck)

Signal system

Recording system DA4 (Double Azimuth) head helical scan system

Format VHS PAL standard VHS PAL/SECAM standard

Tape width 12.65 mm

Tape speed

(SP) 23.39 mm/s

(LP) 11.70 mm/s

Maximum recording time

(SP) 240 min. with E-240 video cassette

(LP) 480 min. with E-240 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)

TUNER/TIMER

TV channel storage capacity 99 positions (+AUX position)

Tuning system Frequency synthesized tuner

Channel coverage (PAL)

VHF : 44.5 MHz - 143 MHz/143 MHz - 470

UHF : 470 MHz - 862 MHz

Channel coverage(SECAM-L)

Memory backup time Approx. 60 minutes

ACCESSORIES

Provided accessories RF cable, 21-pin SCART cable, Satellite Controller, Infrared remote control unit, "AA(R6)" battery × 2

DR-MX1SEK DR-MX1SEU / EY / EZ DR-MX1SEF

Bit stream Selectable in digital audio output setting menu

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

(EP): Approx. 209 hours, (FR): Approx. 36 - 300 hours

PAL colour signal and CCIR monochrome signal, 625 lines / 50 fields

MHz

VHF : 47 MHz - 89 MHz/104 MHz - 300

MHz/302 MHz - 470 MHz

UHF : 470 MHz - 862 MHz

-

PAL/SECAM colour signal and CCIR
monochrome signal, 625 lines/50 fields

VHF(LOW): 47MHz - 89MHz(E2 ­E4,X,Y,Z)
VHF(HIGH): 104MHz-300MHz(E5 - E12,

Hyper: 302MHz - 470MHz (S21-S41)
UHF: 470MHz - 862MHz (E21 - E69)

VHF(LOW): 49MHz - 65MHz (2-4)
VHF(HIGH): 104MHz - 300 MHz (5-10,
CATV)
Hyper : 300MHz - 470MHz (CATV)
UHF : 470MHz - 862MHz (21 - 69)

S1-S20, M1 - M10, U1 - U10)

• Specifications shown are for SP mode unless otherwise specified.

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

• 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.

• SHOWVIEW is a trademark of Gemstar Development Corporation. The SHOWVIEW system is manufactured under licence from Gemstar Devel­opment Corporation.(EU/EY/EZ/EF MODEL)

• VIDEO Plus+ and PlusCode are registered trademarks of Gemstar Development Corporation. The VIDEO Plus+ system is manufactured under
license from Gemstar Development Corporation.(EK MODEL)

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

1-2 (No.YD048)

SECTION 1

r

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

2.0

5.5

Crimping tool

Fig.1-1-6

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

Not easily pulled free

Wire insulation recessed

more than 4 mm

Crimped at approx. cente

of metal sleeve

Conductors extended

Fig.1-1-7

(No.YD048)1-3

1.1.2 Safety Check after Servicing

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

(1) Insulation resistance test

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

(2) Dielectric strength test

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

(3) Clearance distance

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

d

Chassis

d'

Power cord
primary wire

Fig.1-1-8

(4) Leakage current test

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

ab

Externally
exposed
accessible part

Z

V

c

A

Fig.1-1-9

(5) Grounding (Class 1 model only)

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

AC inlet

Earth pin

Exposed accessible part

MIlli ohm meter

Grounding Specifications

Region

USA & Canada

Europe & Australia

Grounding Impedance (Z

Z 0.1 ohm

Z 0.5 ohm

)

Fig.1-1-10

AC Line Voltage

100 V

100 to 240 V

110 to 130 V

110 to 130 V

200 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Insulation Resistance (R

R 1 M /500 V DC

1 M R 12 M /500 V DC

R 10 M /500 V DC

)

Dielectric Strength

AC 1 kV 1 minute

AC 1.5 kV 1 minute

AC 1 kV 1 minute
AC 3 kV 1 minute

AC 1.5 kV 1 minute

(

Class

(

Class

Clearance Distance (d), (d'

d, d' 3 mm

d, d' 4 mm

d, d' 3.2 mm

d 4 m m

)

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

)

Fig.1-1-11

AC Line Voltage

100 V

110 to 130 V

110 to 130 V

220 to 240 V

Region

Japan

USA & Canada

Europe & Australia

Load Z

1

0.15

1.5

2

50

Leakage Current (i)

i 1 mA rms

i 0.5 mA rms

i 0.7 mA peak
i 2 mA dc

i 0.7 mA peak
i 2 mA dc

a, b, c

Exposed accessible parts

Exposed accessible parts

Antenna earth terminals

Other terminals

Fig.1-1-12

NOTE :

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

)

)

)

1-4 (No.YD048)

1.2 Hard Disk Drive (HDD) Handling Precautions

The HDD is a precision device for use in reading and writing a large amount of data on or from a disk rotating at a high speed. If it is
not handled carefully, either abnormal operation may result or it may not be possible to read data. The HDD is sensitive to the following
items and special care is required in safeguarding against them when handling an HDD. Also take care in handling a set incorporating
an HDD.

(1) Vibrations and impacts
(2) Static electricity
(3) Rough handling

1.2.1 Handling in transport, etc.

• Be sure to place the HDD in the manufacturer's specified pack­age carton before transport.

• When receiving a package containing an HDD, check that the
package carton is not damaged (such as having holes in the
carton, crushed corners, etc.).

• Do not impact the packaging carton when loading or unloading

HDD
Do not throw or
drop packages.

it.

• It is not permitted to use the inner package carton only for
transporting an HDD.

• Do not stack package cartons one upon another.

Be sure to package and
transport the HDDs correctly.

1.2.2 Handling an HDD in the stand-alone status

• When handling an HDD on a hard workbench, place an anti­static mat (rubber sheet) or similar object on the hard surface
(to prevent any impacts occurring between the HDD and
bench).

• Do not stack the HDDs one upon another.

• Do not knock an HDD with a hard object (such as a screwdriv­er).

• Do not place an HDD on its side panel without using a support
(do not place an HDD in an unstable position).

1.2.3 Handling the installation of an HDD

• Place antistatic mats or similar sheets on all of the surfaces on which work is conducted or when the HDD is transported.

• Do not permit the HDD to knock against the set's brackets.

• When screwing the brackets, be careful not to knock the HDD. When using a power screwdriver, use a low-shock model and arrange
the tightening torque properly.

• When mounting an HDD in a main body, take care not to apply excessive force to the brackets.

(No.YD048)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

2.1 Different table of features

The following table indicates main different points between models DR-MX1SEK, DR-MX1SEU/EY/EZ and DR-MX1SEF.

ITEM DR-MX1SEK DR-MX1SEU / EY / EZ DR-MX1SEF

POWER PLUG 3PIN CEE ←

VHS PAL/NTSC PB on PAL TV with

HiFi

BROADCASTING STANDARD I B/G, D/K L, L', B/G

STEREO DECODER NICAM NICAM/A2 NICAM(L, B/G) / A2(B/G)

VCR PLUS+ VIDEO Plus+DELUXE SHOWVIEW DELUXE ←

VPS/PDC NOT USED USED NOT USED

Note:

Mark ← as same as left.

2.2 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.

2.2.1 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, HDD, DVD unit,

switching regulator, digital, junction and Main board as-

semblies.
(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. 2-2a.)
(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.

PAL/MESECAM (MANUAL) /

NTSC PB on PAL TV with HiFi

←

• 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.

Switchcing regulator
board assy

Junction board
assy

Digital board
assy

Jack board
assy

DVD WPKV

Switch display board assy

HDD

Main board assy

Operation jack board assy

TP111 D.FF

TP106 PB FM

TP2253 A.PB FM

TP4001 CTL.P

Fig.2-2a

1-6 (No.YD048)

2.3 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 unit 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 unit 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 RCU mode and when the unit

is under Jig RCU 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 unit to the Jig RCU
mode as initial setting. Therefore please set the unit to
the user RCU mode after replacing the EEPROM.

User RCU mode

Jig RCU mode

( blinked)

Fig.2-3a User/Jig RCU mode

2.3.1 Changing Remote Control Code

(1) Slide the TV/CABLE/SAT/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."

2.3.2 Setting the Jig RCU mode

(1) Turn on the power.
(2) Press the "VHS/HDD/DVD SELECT" button repeatedly on

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

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

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

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

(Refer to Fig.2-3a User/Jig RCU mode)

2.3.3 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 "43-9D" from the
Jig RCU.

2.4 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".

2.4.1 How to set the "Mechanism service mode"

(1) Set the unit to the Jig RCU mode (the mode in which codes

from the Jig RCU can be received)
(2) Transmit the code "43-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 unit is set to the Mechanism service mode, the

symbols ("TIMER") in the FDP (LED) are blinked.

2.4.2 How to exit from the "Mechanism service mode"

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

2.5 Maintenance and inspection

2.5.1 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 cot-

ton 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.2-5a

2.5.2 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.

(No.YD048)1-7

2.5.3 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

Drum assembly C,X X

A/C head C,X C,X

Tape
transport

Drive

Other Rotary encoder X

C : Cleaning
X : Inspection or Replacement if necessary

Pinch roller arm assembly C C

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

Belt (Capstan) X X

Loading motor X

Clutch unit X

Worm gear X

Control plate X

Operation hours

1000H 2000H

1-8 (No.YD048)

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

WR5b

WR5c

CN7108
(CN1001)

CN7109
(CN1002)

CN7121
(CN1801)

WR6a

WR7a

WR7b

WR7c

WR7d

WR7e

WR8a

WR8b

WR8c

WR12a

WR12b

WR12c

WR13a

WR13b

Main

Main

Junction

Main

Drum
assembly

DVD unit

DVD unit

HDD

Junction

Junction

Junction

Junction

Junction

Junction

Junction

Main

Main

Junction

SW. REG.

SW. REG.

SW. REG.

SW. REG.

Tuner

Tuner

Tuner

Main

Video switch

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

CN7112

CN3102

CN7103

CN2001

CN7106

CN5502

CN7108

CN7109

CN7121

CN7126

CN7123

CN3103

CN2601

CN7107

CN5304

CN5301

CN5302

CN5303

CN6001

CN6003

CN6002

CN7119

CN504

Operation/jack

Switch/display

Switch/display

A/C head

Main

Digital

Junction

Digital

Digital

Digital

Digital

Digital

Digital

Jack

Video switch

Junction

Junction

Main

Junction

Main

Fun motor

HDD

Main

Main

Main

SECAM

SECAM

Fig.
No.

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

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

CN7201

CN7001

CN7002

CN2201

CN5304

CN2101

CN1405

CN1003

CN1001

CN1002

CN1801

CN4104

CN501

CN7102

CN8001

CN7111

CN5501

CN5311

CN7116

CN7118

CN7117

CN301

CN4302

Point Note

CN1

40

10

9

11

4

6

9

40

4

40

4

6

28

20

10

6

4

15

11

9

19

15

2

4

14

7

13

15

6

(1) Order of steps in Procedure

When reassembling, perform the step(s) in the reverse or-

der.

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.

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]

[11]
[12]

[13]

Part Name

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

Mechanism assembly

(Drum assembly)

DVD unit
(Bracket)
Digital board assembly

Jack board assembly
Junction board assembly

Switching Regulator
board assembly

Rear cover
HDD
(Bracket, sheet)
Main board assembly
Tuner board assembly

SECAM board assembly
(EF model)

Fig.
No.

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

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

3-1d
3-1d
3-1e

3-1d
3-1e

3-1d
3-1d
3-1e
3-1d
3-1d
3-1e
3-1d
3-1e

Point Note

8(S1a)
3(L2a),5(L2b)
CN7112(WR2a)
CN3102(WR2b)
CN7103(WR2c)
CN2001(WR3a)
3(S3a),(S3b)
CN(WR3b)
(S3c),(S3d),(S3e)
4(S4a),4(S4b)
(WR4a),(WR4b)
4(S5a),CN2101(WR5a)
CN7106(WR5b),CN5502(WR5c)
CN7108(CN1001),CN7109(CN1002),
CN7121(CN1801)
2(S6a),CN7126(WR6a)
(S7a),CN7123(WR7a),
CN3103(WR7b),CN2601
(WR7c),CN7107(WR7d),
CN5304(WR7e)
4(S8a)
CN5301(WR8a),
CN5302(WR8b),
CN5303(WR8c)
(S9a),8(S9b),(S9c),3(L9a)
4(S10a),4(S10b)

2(S11a)
CN6001(WR12a),CN6003
(WR12b),CN6002(WR12c)
2(S13a), CN7119(WR13a)
CN504(WR13b)

<Note2a>
<Note2b>

<Note2a>
<Note3a>
<Note3b>

<Note2a>

<Note2a>

<Note2a>

<Note2a>

<Note 2a>

• 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.

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

(No.YD048)1-9