Hitachi DVRV-8500-E Service Manual

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Page 1

SERVICE MANUAL

SM0512

DV-RV8500E

DV-RV8500E(UK)

PAL

PAL SECAM

DO NOT RESELL OR DIVERT IMPROPERLY.

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

DVD VIDEO RECORDER with VIDEO CASSETTE RECORDER

2005July

Digital Media Division,Yokohama

Page 2

1 Safety Precaution for Repair ........... 1-1

1-1 Cautions ................................................. 1-1

1-2 Electrostatic Protection Measures .......... 1-2

1-3 Cautions When Handling DVD Drive....... 1-2

1-4 Lead-Free Solder.................................... 1-3

1-5 Notes When Using Service Manual ........ 1-4

2 General Description ......................... 2-1

2-1 Overview ................................................ 2-1

2-1-1 Service method ................................... 2-1

2-1-2 Disc information ................................... 2-2

2-2 Features ................................................. 2-4

2-3 Specifications ......................................... 2-5

2-4 Major Differences from Previous Model .. 2-6

2-5 Function Differences from

Previous Model ....................................... 2-7

2-6 Names of Parts....................................... 2-8

2-7 List of Abbreviations and Terms for DVD

Recorder ............................................... 2-12

3 Details of Servicing and

Troubleshooting ............................... 3-1

3-1 Details of Servicing ................................. 3-1

3-1-1 Removing Disc from Faulty Recorder ... 3-1

3-1-2 Removing Video Cassette from Faulty

Recorder ............................................... 3-1

3-1-3 Firmware .............................................. 3-2

3-1-4 Setting to defaults at the factory ........... 3-3

3-2 Troubleshooting ...................................... 3-4

3-2-1 Troubleshooting electronic system ........ 3-4

3-2-2 Troubleshooting mechanical block ...... 3-14

4 Disassembly and Reassembly ........ 4-1

4-1 Order of Disassembly ............................. 4-1

4-2 Cabinet Disassembly .............................. 4-1

(1) Top Cover ................................................. 4-1

(2) Front Panel ............................................... 4-2

(3) FAN Motor ................................................ 4-2

(4) SMPS P.C.B ............................................. 4-3

(5) Deck mechanism...................................... 4-4

(6) TIMER P.C.B ............................................ 4-5

(7) VCR P.C.B ................................................ 4-5

(8) DVD multi-drive ........................................ 4-6

(9) VDR, JACK and KEY P.C.Bs .................... 4-6

4-3 Deck Mechanism Parts Locations ........... 4-7

4-4 Deck Mechanism Disassembly ................ 4-8

(1) Drum assembly ........................................ 4-8

(2) Top plate ................................................... 4-9

(3) CST holder assembly ............................... 4-9

(4) F/L rack gear assembly ............................ 4-9

(5) Door opener ............................................. 4-9

(6) F/L arm assembly..................................... 4-9

(7) S/W lever assembly.................................. 4-9

(8) L/D motor assembly ............................... 4-11

(9) Wheel gear ............................................. 4-11

(10) F/E head .............................................. 4-11

(11) A/C head assembly .............................. 4-11

(12) T brake assembly ................................. 4-12

(13) Tension arm assembly .......................... 4-12

(14) S reel and T reel ................................... 4-12

(15) P4 base assembly ................................ 4-13

(16) Lid opener ............................................ 4-13

(17) Pressure arm assembly ....................... 4-13

(18) Take-up arm ......................................... 4-13

(19) Capstan supporter ............................... 4-14

(20) Capstan belt and capstan motor ........... 4-14

(21) F/R lever............................................... 4-14

(22) D37 clutch assembly ............................ 4-14

(23) Driver gear and cam gear ..................... 4-15

(24) Sector gear .......................................... 4-15

(25) Capstan brake assembly ...................... 4-15

(26) Slider plate ........................................... 4-15

(27) Tension lever ........................................ 4-15

(28) Spring lever .......................................... 4-15

(29) Brake lever ........................................... 4-15

(30) P2 gear assembly and

P3 gear assembly ................................. 4-16

(31) P2 base assembly and

P3 base assembly ................................ 4-16

(32) Loading base ........................................ 4-16

(33) Tension base ........................................ 4-17

(34) Jog idler arm assembly ........................ 4-17

4-5 Checking Mode after Reassembling Deck

Mechanism ........................................... 4-18

Contents - 1

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5 Adjustment / Maintenance ............... 5-1

5-1 Set-up for Adjustment ............................. 5-1

5-2 VCR Electrical Adjustment ..................... 5-2

5-2-1 Head switching adjustment ................... 5-2

5-3 Deck Mechanism Tape Transport System

Adjustment ............................................. 5-3

5-3-1 Guide roller height adjustment .................

5-3-2 A/C head adjustment ............................ 5-4

5-3-3 X-value adjustment ............................... 5-5

5-3-4 Adjustments after replacing

drum assembly ..................................... 5-5

5-3-5 Check after adjustment ........................ 5-6

5-3-6 Method of setting the mechanism to

loading status without inserting tape ..... 5-6

5-3-7 Reel torques ......................................... 5-7

5-4 Maintenance ............................................ 5-8

5-4-1 Maintenance and inspection ................. 5-8

5-4-2 Lubricating oil and greasing ................ 5-10

5-3

6 Exploded View and Parts List.......... 6-1

6-1 Exploded Views ...................................... 6-1

6-1-1 Cabinet Section ................................... 6-1

6-1-2 F / L Mechanism .................................. 6-2

6-1-3 Deck Mechanism Section - Top view ... 6-3

6-1-4

Deck Mechanism Section - Bottom view

6-2 Parts List ................................................. 6-5

6-2-1 Mechanical Parts List ........................... 6-5

6-2-2 Electrical Parts List ............................... 6-6

6-4

C Circuit Board Diagrams .................. C-1

C-1 VCR Circuit Board Diagram ................... C-1

C-2 S.M.P.S Circuit Board Diagram .............. C-3

C-3 JACK Circuit Board Diagram ................. C-4

C-4 TIMER Circuit Board Diagram ............... C-4

C-5 KEY Circuit Board Diagram ................... C-4

B Block Diagrams ............................... B-1

B-1 S.M.P.S Circuit Block Diagram ................B-1

B-2 VIDEO Circuit Block Diagram .................B-2

B-3 AUDIO Circuit Block Diagram .................B-3

B-4 SYSTEM Circuit Block Diagram..............B-4

B-5 VIDEO I/O Circuit Block Diagram ...........B-5

S Schematic, Wiring Diagrams .......... S-1

S-1 Wiring Diagram ....................................... S-1

S-2 S.M.P.S Schematic Diagram ................... S-2

S-3

SYSTEM Schematic Diagram(VCR P.C.B)

S-4

TUNER Schematic Diagram(VCR P.C.B) ..

S-5 A/V Schematic Diagram(VCR P.C.B) ......S-5

S-6 Hi-Fi Schematic Diagram(VCR P.C.B) ....S-6

S-7 REAR JACK Schematic Diagram

(VCR P.C.B)............................................S-7

S-8 TIMER,KEY Schematic Diagrams .......... S-8

S-9 JACK Schematic Diagram ...................... S-9

S-10 A/V,SYSTEM Circuit Waveforms ......... S-10

S-11 CIRCUIT VOLTAGE CHART ................ S-11

S-3

S-4

Contents - 2

Page 4

Safety Precaution for Repair

1-1 Cautions

PRODUCT SAFETY NOTICE

Many electrical and mechanical parts have special safety-related characteristics. These are often not

evident from visual inspection nor can the protection afforded by them necessarily be obtained by using

replacement components rated for a higher voltage, wattage, etc. Replacement parts which have these

special safety characteristics are identified in this Service Manual. Electrical components having such

features are identified by marking with a on the schematics and the parts list in this Service Manual.

The use of a substitute replacement component which does not have the same safety characteristics as

the HITACHI recommended replacement one, shown in the parts list in this Service Manual, may create

shock, fire, or other hazards. Product safety is continuously under review and new instructions are

issued from time to time. For the latest information, always consult the current HITACHI Service Manual.

A subscription to, or additional copies for, HITACHI Service Manual may be obtained at a nominal

charge from HITACHI SALES CORPORATION.

CAUTION

There is a high-voltage section inside the DVD video

recorder. When repairing or inspecting it, take great care

to prevent electric shock: Use an isolating transformer,

CAUTION

This product contains a laser diode of higher class than 1. To ensure continued safety, do not remove any covers or attempt to gain access to the inside of the product. Refer all servicing to qualified personnel.

wear gloves, etc.

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Safety Precaution for Repair > Electrostatic Protection Measures / Cautions When Handling DVD Drive

1-2 Electrostatic Protection Measures

Semiconductor components can be damaged by static electricity charged on clothes, human body, etc. Take great care when handling components to avoid electrostatic damage, and perform servicing in an environment where grounding is complete.

(1) Grounding work bench

Lay out an antistatic mat on work bench, and then use the ground plate to ground the work bench.

Antistatic mat

1M ohm

Ground

(2) Grounding human body

Use an antistatic wrist strap to discharge any static electricity charged on the body. Also, use a tester for wrist strap to make sure that the wrist strap is working normally. Note, however, that static electricity charged on clothes will not be discharged by wrist strap: Therefore do not allow your clothes to touch the semiconductor components.

Antistatic wrist strap

1M ohm

1-3 Cautions When Handling DVD Drive

The optical pickup in DVD drive has a high precision structure: Be sure to observe the following cautions.

1) Do not subject optical pickups to any severe vibrations or impact during movement, installation or disassembly.

2) When performing repair work, do not perform disassembly any further than that described in this manual.

3) Never turn the semi-variable resistors for adjustment in optical pickup or DVD drive.

4) NEVER look into the objective lens in optical pickup or directly view the laser light: You could lose your eyesight.

Do not directly look at laser light from pickup.

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Safety Precaution for Repair > Lead-Free Solder

1-4 Lead-Free Solder

The printed circuit board that uses lead-free solder is adopted. To protect the global environment, use the recommended lead-free solder also during servicing. Read and observe the following before soldering:

Caution

ALWAYS wear protective goggles during soldering so that no solder smoke or scattered solder enters the eye. Lead-free solder may scatter at high temperatures of 600°C.

(1) Characteristics of lead-free solder

The melting point of lead-free solder is 30-40°C higher than that of lead based solder.

(2) Lead-free solder for servicing

Use the following lead-free solder for servicing: Recommended lead-free solder and composition of alloy (wt%): Sn-3.0Ag-0.5Cu or equivalent

Information:

For composition of alloy, Sn is tin; Ag is silver; Cu is copper; Bi is bismuth; Pb is lead.

(3) Soldering iron for servicing

The temperature of soldering iron tip must be adjusted according to the points to be soldered: Use an antistatic soldering iron with thermal control function. When removing components, take care not to damage any surrounding component or pattern. When attaching components, observe the heating time in the following table so that the components are not destroyed by heat.

Tip temperatures for different soldering points:

Point to be soldered

Surface-mounted (chip) parts [other than those shown below] Surface-mounted (chip) parts [for DVD cameras, cellular phones only] Discrete parts Chassis, metal shield, etc.

320 ± 30°C [heating time: less than 5 seconds] 350 ± 10°C [heating time: less than 3 seconds] 380 ± 30°C 420 ± 30°C

Tip temperature

(4) Cautions when using lead based solder

It is recommended that you use lead-free solder when servicing, but it is also possible to service using lead based solder. However, if lead based solder is used for servicing, take care with the following:

1) Before using lead based solder, remove the lead-free solder completely from the point to be soldered.

2) For additional soldering for repair, set the soldering iron tip temperature for lead-free solder, mix lead based solder and lead-free solder sufficiently. Do not perform any repair using the bare soldering iron tip without adding solder, since it will cause secondary failure due to lack of strength.

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Safety Precaution for Repair > Notes When Using Service Manual

1-5 Notes When Using Service Manual

(1) Value units used in parts list

Certain symbols are indicated as shown below for value units of resistors, capacitors and coils in parts list. When you read them, note the following regular indications:

Parts

Resistor Capacitor

Coil

Indication in list Regular indication

KOHM UF PF UH MH

.........................................

................................................

...............................................

..............................................

k µF pF µH mH

(2) Values in schematic diagrams

The values, dielectric strength (power capacitance) and tolerances of the resistors (excluding variable resistors) and capacitors are indicated in the schematic diagrams using abbreviations. Certain symbols are indicated for value units: When you read them note the regular indications in tables below:

[Resistors] [Capacitors]

Item

Value

Tolerance

Power capacitance

No indication

..................................................

.................................................

M No indication (All tolerances other than ±5% are indicated in schematic diagrams) No indication (1/16 W for leadless resistors with no indication) All capacitances other than the above are indicated in schematic diagrams.

Indication

..............................

k M ±5%

1/8W

Item

Value

Dielectric strength

[Coils]

Item

Value

Indication

No indication

..................................................

P No indication (All dielectric strengths other than 50 V are indicated in schematic diagrams)

..............................

µF pF 50V

Indication

...................................................

..................................................

µH mH

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General Description

2-1 Overview

The DV-RV8500E is a DVD recorder with VHS VCR that incorporates a DVD super multi-drive: It allows user to record and play back on +RW and +R, as well as on DVD-RAM, DVD-RW, DVD-R and VHS videotape. It can be used without any concern about the type of media.

2-1-1 Service method

Basically, components are replaced when servicing the DV-RV8500E. However, the service method is different for high-density packaging PCBs and precision components. Refer to the following table and perform the designated, appropriate servicing. Any changes that occur in the service method will be published using service bulletin, etc. Do not perform any servicing other than that described in this manual.

Component

Exterior component DVD Multi Drive VDR P.C.B

VCR P.C.B TIMER P.C.B JACK P.C.B KEY P.C.B SMPS P.C.B Deck mechanism

Service method

Component replacement Unit replacement Circuit board assembly replacement Component replacement Component replacement Component replacement Component replacement Component replacement Component replacement

DVD Multi Drive

KEY P.C.B

JACK P.C.B

VDR P.C.B

SMPS P.C.B

TIMER P.C.B

Deck Mechanism

Fig. 2-1-1 Component Location

VCR P.C.B

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General Description > Overview

2-1-2 Disc information

Recordable Discs

DVD-RW (Digital Video Disc - ReWritable):

These Discs can be recorded on repeatedly. Recordings can be erased, then you can record again on the same Disc. When a brand-new DVD-RW disc is inserted, the screen for formatting the disc will appear: Choose the VR mode or Video mode, and then format the disc before use.

DVD-R (Digital Video Disc - Recordable):

These Discs can be recorded only once. After you finalize a DVD-R, you cannot record on it or edit it any more.

DVD+RW (Digital Video Disc + ReWritable):

These Discs can be recorded on repeatedly. Recordings can be erased, then you can record again on the same Disc. When a brand-new DVD+RW disc is inserted, the screen for formatting the disc will appear: Format the disc before use. When a DVD+RW disc recorded on this recorder is removed, it will automatically be finalized, but if you enter a title after finalization, you will need to manually finalize it.

DVD+R (Digital Video Disc + Recordable):

These Discs can be recorded only once. After you finalize a DVD+R, you cannot record on it or edit it any more.

. DVD-RAM (DVD - Random Access

Memory)

DVD-RAM discs can be formatted for VR mode recording. These Discs can be recorded on repeatedly. Recordings can be erased, then you can record again on the same Disc. Playable on DVD-RAM compatible players. Recordings can be extensively edited. Only DVD-RAM standard Version 2.0, 2.1 and 2.2 discs can be used in this unit. You cannot use the cartridge-type DVD-RAM disc in this unit. When a brand-new DVD-RAM disc is inserted, the screen for formatting the disc will appear: Format the disc before use. In the case of an 8-cm DVD-RAM on which photos were recorded on a Hitachi DVD video camera/recorder, no editing of Disc Navigation or play list can be performed on this recorder (recording on it and creating a play list are possible).

otes

– This recorder cannot record CD-R or CD-RW discs. – DVD-R/RW, DVD+R/RW and CD-R/RW discs

recorded using a personal computer or a DVD or CD recorder may not play if the disc is damaged or dirty, or if there is dirt or condensation on the recorder’s lens.

– If you record a disc using a personal computer, even if

it is recorded in a compatible format, there are cases in which it may not play because of the settings of the application software used to create the disc. (Check with the software publisher for more detailed information.)

– The company does not hold any responsibility to

compensate the contents which should have been recorded, and any losses or damages (e.g. losses of business profit, or business intermission) that may arise from malfunction of this recorder (not recording/editing as intended). Problems arising in the following situations are included.

• When a DVD disc recorded on this recorder is used in a DVD recorder of another manufacturer, or used (insertion, playback, recording or editing) in a personal computer DVD drive.

• When a DVD that has been used as above is used again in this recorder.

• When a DVD disc recorded in a DVD recorder of another manufacturer, or in a personal computer DVD drive is used.

Playable Discs

DVD (8 cm/12 cm disc)

Video CD (VCD) (8 cm / 12 cm disc)

Audio CD (8 cm/12 cm disc)

In addition, this unit can play DVD-R/DVD-RW discs; DVD+R/DVD+RW discs; CD-R/CD-RW discs that contain audio titles, MP3 files, WMA files, or JPEG files;. and VCD.

otes

– Depending on the conditions of the recording

equipment or the CD-R/RW (or DVD±R/±RW) disc itself, some CD-R/RW (or DVD±R/±RW) discs cannot be played on the unit.

– Do not attach any seal or label to either side (the

labelled side or the recorded side) of a disc.

– Do not use irregularly shaped CDs (e.g., heart-shaped

or octagonal). Doing so may result in malfunctions.

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General Description > Overview

About DVD-R and DVD-RW disc

How are DVD-R and DVD-RW discs different?

The essential difference between DVD-R and DVD-RW is that DVD-R is a record-once medium, while DVD-RW is a re-recordable/erasable medium. You can re-record/ erase a DVD-RW disc approximately 1,000 times.

Can I play my recordable discs in a regular DVD player?

Generally, DVD-R discs and DVD-RW discs recorded in Video mode are playable in a regular DVD player, but they must be ‘finalized’ first. This process fixes the contents of the disc to make them readable to other DVD players as DVD-Video discs. DVD-RW discs recorded in VR (Video Recording) mode are playable in some players.

This indicates a product feature that is capable of playing DVD-RW discs recorded with Video Recording format.

What are ‘recording modes’?

There are two recording modes available using this recorder: VR mode and Video mode. When recording to a DVD-R disc, recordings are always in Video mode. DVD-RW discs can be formatted for VR mode recording or Video mode recording.

VR mode recording

• 4 different picture quality/recording time settings available (XP, SP, LP, EP)

• Not playable on regular DVD players

• Recordings can be extensively edited

Video mode recording

• 4 different picture quality/recording time settings available (XP, SP, LP, EP)

• Playable on regular DVD players (after finalizing)

• Limited editing features

Is editing a DVD like editing a video tape?

No. When you edit a video tape you need one video deck to play the original tape and another to record the edits. With DVD, you edit by making a ‘Playlist’ of what to play and when to play it. On playback, the recorder plays the disc according to the Playlist.

About word ‘Original’ and ‘Playlist’

Throughout this manual, you will often see the words Original and Playlist to refer to the actual content and the edited version.

• Original: content refers to what’s actually recorded on the disc.

• Playlist: content refers to the edited version of the disc — how the Original content is to be played.

About DVD+R and DVD+RW disc

How are DVD+R and DVD+RW discs different?

The essential difference between DVD+R and DVD+RW is that DVD+R is a record-once medium, while DVD+RW is a re-recordable/erasable medium. You can re-record/ erase a DVD+RW disc approximately 1,000 times.

DVD+RW mode recording

• 4 different picture quality/recording time settings available (XP, SP, LP, EP)

• Playable on regular DVD players

• The edited contents is playable on regular DVD players only after finalizing

• Recordings can be edited the title/chapter

DVD+R mode recording

• 4 different picture quality/recording time settings available (XP, SP, LP, EP)

• Playable on regular DVD players (after finalizing)

• Any edited contents are not be compatible on regular DVD players. (Hide, chapter combine, added chapter mark, etc.)

• Limited title/chapter editing features

ote

DVD-Video Format (Video mode) is a new format for recording on DVD-R/RW and DVD+R/RW discs that was approved by the DVD Forum in 2000. You may therefore experience problems playing recordable DVD discs in some players. Symptoms include video artifacts, audio and/or video dropouts and playback suddenly stopping. Our company cannot take responsibility for problems playing discs recorded on this recorder in other players.

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General Description > Features

2-2 Features

1. DVD super multi-drive incorporated

1) This drive is newly compatible with recording/playback on +R and +RW, in addition to DVDRAM, DVD-RW and DVD-R. DVD-RW is compatible with recording/playback in both Video mode and VR (Video Recording) mode: DVD media can be selected to match the application.

2) The drive can play back 8 cm DVD-R recorded on a Hitachi DVD video camera/recorder and not finalized.

3) The drive is widely compatible with reading of original CD-R/RW recorded in MP3, WMA (Windows Media Player) and JPEG formats, as well as music CDs.

2. The Dubbing button easily dubs VHS images to create a DVD.

Simply pressing the button allows user to dub precious material recorded on VHS videotapes onto DVD. And images edited on DVD can be dubbed onto VHS videotape.

3. High-quality image design

1) VBR (Variable Bit Rate control) format ensures both high image quality and long-time recording: This DVD recorder uses a VBR recording format that increases the compression ratio with simple images and decreases it with complex images of larger amounts of data, thus variably controlling to the optimum compression ratio: It reduces deterioration in image quality and effectively records on DVD.

2) Progressive playback makes possible the playback of generally available DVD movies, with natural images and reduced flickering: This DVD recorder plays back clear images even on a large screen with reduced jagging on diagonal lines or characters, and reduced flickering.

4. Enhanced functions

1) DV input port enables digital dubbing from a digital camcorder to DVD.

2) Zoom-up function allows you to enlarge DVD images.

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Page 12

General Description > Specifications

2-3 Specifications

General

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

Power consumption 35W

Dimensions (approx.) 432 X 81.5 X 367 mm (w x h x d)

Mass (approx.) 6.6 kg

Operating temperature 5˚C to 35˚C

Operating humidity 5 % to 90 %

Television system PAL B/G, SECAM L/L' colour system [For E]

Recording format VCR : PAL, SECAM [SECAM : E only]

System

Laser Semiconductor laser, wavelength 650 nm

Video head system Double azimuth 4 heads, helical scanning

Signal system VCR : PAL, SECAM [SECAM : E only]

Recording

Recording format DVD VideoRecording, DVD-VIDEO Recordable discs DVD-ReWritable, DVD-Recordable, DVD+ReWritable, DVD+Recordable,

Recordable time DVD (4.7GB) : Approx. 1 hour (XP mode), 2 hours (SP mode),

Video recording format

Sampling frequency 27MHz

Compression format MPEG 2

Audio recording format

Sampling frequency 48kHz

Compression format Dolby Digital

PAL I colour system [For E (UK)]

DVD : PAL

DVD-Random Access Memory

4 hours (LP mode), 6 hours (EP mode)

Playback

Frequency response DVD (PCM 48 kHz): 8 Hz to 22 kHz, CD: 8 Hz to 20 kHz

DVD (PCM 96 kHz): 8 Hz to 44 kHz

Signal-to-noise ratio More than 100 dB (AUDIO OUT connector)

Harmonic distortion Less than 0.008% (AUDIO OUT connector)

Dynamic range More than 95 dB (AUDIO OUT connector)

Inputs

AERIAL IN Aerial input, 75 ohms

VIDEO IN 1.0 Vp-p 75 ohms, sync negative, RCA jack x 1 / SCART x 2 AUDIO IN 0 dBm more than 47 kohms, RCA jack (L, R) x 1 / SCART x 2

DV IN 4 pin (i.LINK/IEEE 1394 standard)

S-VIDEO IN (Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1

Outputs

VIDEO OUT 1.0 Vp-p 75 ohms, sync negative, SCART x 2

S-VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, negative sync, Mini DIN 4-pin x 1

COMPONENT VIDEO OUT (Y) 1.0 V (p-p), 75 Ω, negative sync, RCA jack x 1

B/PB

)/(CR/PR) 0.7 V (p-p), 75 Ω , RCA jack x 2

Audio output (digital audio) 0.5 V (p-p), 75 Ω, RCA jack x 1

Audio output (optical audio) 3 V (p-p), 75 Ω, Optical connector x 1

Audio output (analogue audio) 2.0 Vrms (1 KHz, 0 dB), 600 Ω, RCA jack (L, R) x 1 / SCART

• Design and specifications are subject to change without notice.

• Manufactured under licence from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

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

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General Description > Major Differences from Previous Model

2-4 Major Differences from Previous Model

Item

Appearance

DV-RV8500E

: Same as on left

DV-RX7000E

PROGRAM

Dimensions Power consumption CPRM Recordable media

Playable media

Remote control DV input terminal S-VIDEO input terminal VIDEO/AUDIO input terminals COMPONENT VIDEO output terminal S-VIDEO output terminal VIDEO output terminal Analog AUDIO output terminals Digital AUDIO output terminals Video output switch

432(W) x 367(D) x 81.5(H)mm Approx. 35 W Yes 12 cm (5”) 4.7 GB DVD-RAM 12 cm (5”) 9.4 GB DVD-RAM 8 cm (3”) 1.4 GB DVD-RAM 8 cm (3”) 2.8 GB DVD-RAM 12 cm (5”) 4.7 GB DVD-RW 8 cm (3”) 1.4 GB DVD-RW 12 cm (5”) 4.7 GB DVD-R 8 cm (3”) 1.4 GB DVD-R 12 cm (5”) 4.7 GB DVD-R (4x-SPEED) 12 cm (5”) 4.7 GB DVD+RW 12 cm (5”) 4.7 GB DVD+R VHS DVD-RAM DVD-RW DVD-R DVD+RW DVD+R DVD-VIDEO Video CD (VCD) Audio CD (CD-DA) CD-R/CD-RW (CD-DA, MP3,WMA,JPEG,VCD formatted discs) VHS/S-VHS (SQPB) DV-RM8500E 1 (IEEE 1394/i.LINK) 1 (Mini DIN 4pin) 3 (RCA: 1, SCART: 2)

1 (RCA)

1 (Mini DIN 4pin) 2 (SCART: 2) 3 (RCA: 1, SCART: 2)

2 (Optical: 1, Coaxial: 1)

Yes (COMPONENT-RGB)

430(W) x 279(D) x 69(H)mm Approx.35 W

---

CD-R/CD-RW (CD-DA, MP3,JPEG formatted discs)

---

DV-RM7000E

2 (Mini DIN 4pin: 2) 4 (RCA: 2, SCART: 2)

---

3 (RCA: 1, SCART: 2) 4 (RCA: 2, SCART: 2)

Yes (SETUP screen)

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General Description > Function Differences from Previous Model

2-5 Function Differences from Previous Model

Recording

Playback

DVD sectionVCR section

Other

Recording

Playback

Item

Digital Recording (DV to DVD) Dubbing (VCR to DVD) Time Slip (PIP) Instant Timer Recording Flexible Recording Mode Recording Mode Title List Playback CM Skip Manual Skip Marker Search Zoom Photo CD Playback (JPEG) MP3 Playback P in P Repeat Play Repeat A-B Play Camera Angle 3D Surround Slow Motion Play Random Play Time Search DivX Movie Disc Playback WMA Playback Intro Play Disk Menu Title List Chapter List Edit Title List Edit Chapter List Playlist Divide Program Hide Program Digital Recording (DV to VCR) Dubbing (DVD to VCR) Title List Dubbing (DVD to VCR) Instant Timer Recording Picture Search Slow Motion Counter [0:00:00] Stop

DV-RV8500E

Yes Yes Yes Yes

XP, SP, LP, EP

Yes

No Yes Yes Yes Yes Yes

Yes (Karaoke, VCD)

Yes Yes Yes

No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

: Same as on left

DV-RX7000E

No No

One Touch Recording (OTR) Yes (Timer Recording Only)

XP, SP, LP, EP, FR

Yes (15, 30, 60 sec)

Yes

No No

Yes

Yes (Disc Manager)

No No

---

2 - 7

Page 15

General Description > Names of Parts

2-6 Names of Parts

Front Panel

STANDBY/ON

Switches the Recorder ON and OFF. Press to turn the power on and off.(As to the indication of the Operate switch, “ I ” shows ON and “ ” shows electrical power stand-by.)

Disc Tray (DVD deck)

Insert a disc here.

OPEN/CLOSE

Opens or closes the disc tray.

Cassette Compartment (VCR deck)

Insert a video cassette here.

EJECT

Ejects the tape in the VCR deck.

AV 3 IN

- VIDEO /AUDIO (Left/Right)

Connect the audio/video output of an external source (Audio system, TV/ Monitor, VCR, Camcorder, etc.).

- S-VIDEO IN

Connect the S-Video output of an external source (TV/ Monitor, VCR, Camcorder, etc.).

(REC)

(STOP)

(PLAY)

DV IN

Connect the DV output of a digital camcorder.

DVD/VCR indicator

Indicates the active DVD or VCR deck.

DVD/VCR

Toggles control between the DVD deck and the VCR deck.

DUBBING

Press to copy DVD to VCR (or VCR to DVD).

Starts recording. Press repeatedly to set the recording time.

Stops playback.

To play back a disc or tape.

Press for fast back. Press for fast forward.

ote

Holding down the POWER button on the front of this recorder in the stop mode will allow you to reset the recorder. Do not perform this during recording: Doing so will result in flawed recording.

2 - 8

Page 16

General Description > Names of Parts

Function Display Window

Disc type indicators

Indicates the type of disc loaded.

Indicates when the recorder is in timer recording or a timer recording is programmed.

REC The recorder is recording.

PRG Programmed playback active.

TTL Indicates current title.

A disc is inserted in the DVD deck.

A VHS tape is inserted in the VCR deck.

Indicates a DVD-RW disc (VR mode only) disc is inserted in the DVD deck.

TVVRIndicates when the recorder is in TV tuner mode.

DVD

REC

PRG TTL VR TRKCHP DUB

VCD

REPEAT Indicates repeat mode.

Character indicators

Indicates clock, total playing time, elapsed time, remaining

time, title number, chapter/track number, channel, etc.

DUB Indicates that a DVD to VCR (or VCR to DVD)

copy is in progress.

Hi-Fi Indicates when the Recorder is playing

CHP/TRK Indicates current chapter or track number.

Hi-Fi ST

a tape in Hi-Fi.

BIL

NICAM

ST Indicates a stereo broadcast is

being received.

BIL Indicates when a BILINGUAL broadcast is being received.

NICAM Indicates when a NICAM broadcast is being received.

2 - 9

Page 17

General Description > Names of Parts

Remote Control Overview

POWER

Switches the recorder ON or OFF.

DVD

Select the Recorder’s function mode to

DVD.

VCR

Select the Recorder’s function mode to

VCR.

INPUT

Changes the input to use for recording

(Tuner, AV1-3, or DV IN).

0-9 numerical buttons

Selects numbered options in a menu.

CLEAR

- Removes a track number on the Program List or a mark on the

Marker Search menu.

- Reset tape counter to zero.

DISPLAY

Accesses On-Screen Display.

TIME SLIP

To play the title being recorded and also

currently being recorded appears as

PIP.

TIMER REC

Displays Timer Record menu.

REC ( )

Starts recording. Press repeatedly to set

the recording time.

REC MODE

Selects the recording mode:

XP, SP, LP, or EP.

MANUAL SKIP

Pressing this button during palyback will

skip to a scene 30 seconds forward.

TV/DVD

To view channels selected by the

recorder’s tuner or by the TV tuner.

CHP ADD

Inserts a chapter marker when playing/

recording a VR mode DVD-RW (and

DVD+RW/+R) disc.

VIDEO Plus +

Pressing this button and input VIDEO

Plus + number to preset the timer for

recording.

DUBBING

Press to copy DVD to VCR (or VCR to

DVD).

AUDIO

Selects an audio language (DVD) or an

audio channel (CD).

SUBTITLE

Selects a subtitle language.

ANGLE

Selects a DVD camera angle,

if available.

ZOOM

Enlarges DVD video image.

MARKER

Marks any point during playback.

Displays Marker Search menu.

EJECT, OPEN/CLOSE

- Opens and closes the disc tray.

- Ejects the tape in the VCR deck.

TV Control Buttons

POWER: INPUT: PROG: VOL: MUTE:

OFF, press again to restore.

BACKWARD / FORWARD (

- DVD: Search backward or forward.

- VCR: Rewinds the tape during the STOP mode, for fast reverse picture search and Advances the tape during the STOP mode, fast forward picture search.

SKIP (

Go to next chapter or track. Returns to beginning of current chapter or track or go to previous chapter or track.

Turns the TV on or off. Selects the TV’s source. Selects TV’s channel.

Adjusts TV’s volume.

Temporarily turns TV sound

)

PAUSE/STEP ( )

Pause playback temporarily / press repeatedly for frame-by-frame playback.

PLAY ( )

Starts playback.

STOP ( )

Stops playback or recording.

DISC MENU / LIST

Accesses menu on a DVD disc, Title List or Playlist menu.

///

Selects an option in the menu.

(left/right/up/down)

PROG/TRK(+/–)

- Select channel program of the recorder.

- To adjust tracking.

- To control vertical tremble during picture still.

ENTER

- Acknowledges menu selection.

- Displays information while viewing a

TV program.

SETUP

Accesses or removes the Setup menu.

TITLE MENU

Displays the disc’s Title menu, if available.

RETURN ( )

- Removes the menu.

- Displays the menu of a video CD with PBC.

REPEAT

Repeat chapter, track, title, all.

A-B

Repeat sequence.

RANDOM

Plays tracks in random order.

THUMBNAIL

Selects a thumbnail picture for the current title and chapter for use in the Original and Playlist menu.

)

2 - 10

Page 18

General Description > Names of Parts

Rear Panel

AERIAL

Connect the aerial to this terminal.

Mains Lead

Plug into the power source.

COMPONENT/PROGRESSIVE SCAN VIDEO OUT (Y Pb Pr)

Connect to a TV with Y Pb Pr inputs.

AUDIO OUT (Left/Right)

Connect to an amplifier, receiver or stereo system.

EURO AV 2 DECODER

Connect the audio/video output of an external source (Pay-TV decoder, Set Top Box, VCR, etc.).

EURO AV 1 AUDIO/VIDEO

Connect to a TV with SCART jack.

COAXIAL (Digital audio out jack)

Connect to digital (coaxial) audio equipment.

OPTICAL (Digital audio out jack)

Connect to digital (optical) audio equipment.

VIDEO OUTPUT Switch

Select either COMPONENT/PROGRESSIVE SCAN VIDEO OUT or RGB signal of EURO AV1 AUDIO/ VIDEO terminal depending on how you connect the Recorder to the TV.

S-VIDEO OUT

Connect to a S-Video Input on TV.

AERIAL OUT

Passes the signal from the AERIAL to your TV/monitor.

2 - 11

Page 19

General Description > List of Abbreviations and Terms for DVD Recorder

2-7 List of Abbreviations and Terms for DVD Recorder

Index

A B

Abbreviation/Term

AC3 Black Level

CPRM

CD-R

CD-RW Component video output terminals

Decoder

Dynamic Range

Dolby AC3

DRC

DTS

DVD

DVD-Audio DVD-R

DVD-RAM DVD-RW DVD-Video

DVD Video Format

DVD Video Recording Format I/P/B

Explanation

See Dolby AC3. Function to correct the gradations on dark portions to make dark scenes easierto-see. Content Protection for Recordable Media: Copyright protection function that is suitable for online distribution of music. One type of DVD standard disc, to which writing once is possible (recordable type) One type of CD standard disc, to which writing up to 1000 times is possible Used for outputs of HDTV video signal format. Since signals for brightness and colors are independently handled for components signals (Y: luminance signal; PR/PB: chrominance signals), degrading of image will be reduced. A device that decodes the data coded and recorded on DVD Video and restores it to video and audio signals. This processing is referred to as decoding. A difference between maximum and minimum levels of audio recorded on disc: Measured in decibel (dB) units. If the dynamic range is compressed (audio DRC), the minimum signal level will increase and the maximum signal level will decrease: This will reduce the higher audio signal - such as burst sound - so that the low-level audio signal - such as human voice - can be heard more clearly. Audio coding format developed by Dolby Laboratories in U.S, also simply referred as AC3 format: Supports 5-channel full-range sound and one channel for sub-woofer sound playback. Dynamic Range Control: Adjusting the audio range of maximum and minimum levels (dynamic range) will improve audio signal when, for example, dialog is hard to hear or user is watching movies late at night. Digital Theater System: Sound system as for movie theaters developed by US Digital Theater Systems, Inc. The number of channels provided by DTS is the same for Dolby AC3. Digital Versatile Disc. A huge amount of digital data for video (movie) and audio can be recorded on this disc, whose size is the same as CD. One type of DVD standard disc, on which high-quality audio can be recorded One type of DVD standard disc, to which writing once is possible (recordable type) One type of DVD standard disc, to which writing up to 100,000 times is possible One type of DVD standard disc, to which writing up to 1000 times is possible One type of DVD standard disc, on which high-quality video and audio can be recorded Video recording/playback standard that applies to DVD-Video, DVD-R and DVDRW Video recording/playback standard that applies to DVD-RAM and DVD-RW: This allows versatile editing functions, differing from the DVD Video Format. DVD recorders normally use data that is common between images, and individually record different data for each image. I-picture: Images recorded independently for the reference of commonly used data. P-picture: Images created from past I-picture or P-picture B-picture: Images created from both I and P pictures, which interact between both types Since I-picture delivers the highest image quality, selecting I-picture is recommended when adjusting image quality.

2 - 12

Page 20

General Description > List of Abbreviations and Terms for DVD Recorder

Index

Abbreviation/Term

JPEG

MPEG

MPEG Audio Layer 2 MP3 Optical digital audio output

Pan & Scan/ Letterbox

Playback Control (PBC) Progressive playback function

S-Video Output

Sampling Frequency

SDMI

Tracking

Explanation

Joint Photographic Expert Group: International standard format for compressing still images. Moving Picture Experts Group: Standard related to compression of digital video and audio. MPEG2 is a higher standard of MPEG and is applied to video (movie) requiring higher quality. One of three audio compression standards (layers 1-3) defined by MPEG

MPEG1 Audio Layer-3: Audio data digital compression technology. Audio is usually converted to an electrical signal and transmitted from DVD to a device such as amp: When audio is converted to a digital signal, this optical digital audio output can be transmitted on optical fiber. Most DVD videos are produced assuming that they will be displayed on wide TV screen (aspect ratio of 16:9): If they are displayed on TV screens with 4:3 aspect ratio, 16:9 images will not quite fit on 4:3 screens. There are two ways of displaying 16:9 images on 4:3 TV:

· Pan & Scan: Cuts out the left and right ends of images and displays them on whole screen.

· Letterbox: Reproduces 16:9 images on 4:3 screens with black bands across the top and bottom of screen.

One format to play Video CD: User can select desired screens and data while watching the displayed menu screen. This function converts interlaced images to non-interlaced images and displays them. It can play back 24-frame/second images included in DVD movie software, etc. The video signal is separated into chrominance (C) and luminance (L) signals and transmitted to TV: This delivers clearer images. Sampling slices audio waves (analog signal) at a specified time interval, and digitizes the levels of the sliced waves. The slicing number per second is referred to as the sampling frequency: The higher the number, the closer the sound to the original. Secure Digital Music Initiative: This conference was established by hardware makers, the Recording Industry Association of America (RIAA) and music industry companies, to protect copyrights of musical compositions. To make adjustment for clearer playback image, by reducing noise that appears on screen during videotape playback.

Virtual surround

WMA

This technology localizes sound at any position using only two front speakers, by subjecting the L and R signals to matrix operation. It uses the four transfer functions from L/R speakers located at specified positions to both ears of listener located in a specified position, taking into account the shape of head and the effect of earlobes, and the two transfer functions from any position to both ears. Windows Media Audio: Codec that was developed by Microsoft Corporation in USA.

2 - 13

Page 21

Details of Servicing and Troubleshooting

3-1 Details of Servicing

3-1-1 Removing Disc from Faulty Recorder

If disc cannot be removed due to fault, disassemble the recorder and remove the disc by the following procedure:

1) Remove the top cover. [See 4-2 (1) for removal procedure.]

2) Remove the front panel. [See 4-2 (2) for removal procedure.]

3) Push the white component portion under the disc tray strongly, and the tray will come slightly forward. Remove the disc tray in the direction of arrow B. Perform this work carefully, making sure that the disc is not scratched.

"A" PUSH

DISC TRAY

"B"

Fig. 3-1-1 Removing Disc

3-1-2 Removing Video Cassette from Faulty Recorder

If video cassette cannot be removed due to fault, disassemble the recorder and remove the video cassette by the following procedure:

1) Remove the top cover. [See 4-2 (1) for removal procedure.]

2) Remove the front panel. [See 4-2 (2) for removal procedure.]

3) Remove the deck mechanism. [See 4-2 (5) for removal procedure.]

4) Turn the worm gear of L/D motor assembly in the direction of arrow A: Unloading will start. When the tape starts to slacken, turn the D37 clutch assembly on the front of deck mechanism in the direction of arrow B to remove the slack tape.

5) When unloading is complete, the deck mechanism will begin EJECT operation: Completely turn the worm gear of L/D motor assembly in the direction of arrow A.

L/D MOTOR Ass'y

(A)

(B)

Fig. 3-1-2 Removing Video Cassette

3 - 1

D37 Clutch Ass'y

Page 22

Details of Servicing and Troubleshooting > Firmware

3-1-3 Firmware

The firmware is occasionally updated to improve performance. Check whether a customer complaint can be solved by updating of firmware: If the complaint can be solved, update the firmware.

Information:

1) If any corrections in firmware are made at the factory, information on how to obtain the firmware data and create a disc containing upgraded firmware will be reported in technical bulletin, etc.

2) The main and drive firmware programs in this DVD recorder can be written to one CD-R and updated at the same time. It is also possible to write one firmware program to a CD-R and update it individually. Note that some parts of on-screen display will be different depending on the contents to be written to CD-R.

(1) Version check procedure

1) With the recorder turned on, make sure that no disc or tape is inserted.

2) Connect a monitor TV to the video output terminals on this DVD recorder.

3) Simultaneously hold down the REC and PLAY buttons on the front of this DVD recorder for approx. 10 seconds.

4) The firmware version screen will appear on the monitor TV.

5) Turn the recorder off to switch off the display.

(2) Main/drive firmware simultaneous updating procedure

1) Write the main firmware data and drive firmware data to a CD-R.

2) Insert the firmware disc: The screen for verifying update will appear (Fig. 3-1-3).

3) Press the REC button on this DVD recorder three times: The Firmware Update screen will appear (Fig. 3-1-4).

4) Use the cursor buttons on remote control to choose “ALL”, and then press the ENTER button.

5) The current version of drive firmware and the version of firmware on the disc will both appear on the screen. Pressing the REC button on this DVD recorder will start writing (Fig. 3-1-5). To cancel writing, press the OPEN/CLOSE button and remove the disc.

6) The main firmware version will then appear on the screen. Pressing the REC button on this DVD recorder will start writing (Fig. 3-1-6). To cancel writing, press the OPEN/CLOSE button and remove the disc.

7) When updating is complete, the tray will open automatically: Remove the disc.

8) Turn the DVD recorder off and then on: The firmware is now updated.

Update Disc.

Run: REC KEY 3 times

Open: Other KEY

Fig. 3-1-3

==== Firm Ware Update =====

ALLLoaderMain

Fig. 3-1-4

Current Loader Version

DVD+-R/RW RL-02A a.30

New CD Write Loader Version

DVD+-R/RW RL-02A a30

RECKEY:WRITE OPEN:CANCEL

Fig. 3-1-5

Current Version

Version=040731APV Cware=LG17 BSP=1

New CD Write Version

Version=040731A cware=LG17 BSP=16

RECKEY:WRITE OPEN:CANCEL

Fig. 3-1-6

3 - 2

Page 23

Details of Servicing and Troubleshooting > Firmware

Update Disc.

Run: REC KEY 3 times

Open: Other KEY

Current Version

Version=040731APV Cware=LG17 BSP=1

New CD Write Version

RECKEY:WRITE OPEN:CANCEL

Version=040731A cware=LG17 BSP=16

(3) Main firmware updating procedure

1) Write the main firmware data to a CD-R.

2) Insert the firmware disc: The screen for verifying update will appear (Fig. 3-1-7).

3) Press the REC button on this DVD recorder three times: Both the current version of main firmware and the version of main firmware on the disc will appear on the screen (Fig. 3-1-8).

4) Pressing the REC button on this DVD recorder will start writing (Fig. 3-1-8). To cancel writing, press the OPEN/CLOSE button and remove the disc.

5) When updating is complete, the tray will open automatically: Remove the disc.

6) Turn the DVD recorder off and then on: The firmware is now updated.

(4) Drive firmware updating procedure

1) Write the drive firmware data to a CD-R.

2) Insert the firmware disc: The screen for verifying update will appear (Fig. 3-1-7).

3) Press the REC button on this DVD recorder three times: The data on disc will be read, the Firmware Update screen will appear, and the drive firmware version along with the version of drive firmware on the disc, will appear on the screen (Fig. 3-1-9). When reading the data on disc is complete, the disc tray will open automatically: Remove the disc.

4) Press the REC button on this DVD recorder. To cancel writing, press the OPEN/CLOSE button.

5) Turn the DVD recorder off and then on: The firmware is now updated.

Fig. 3-1-7

Fig. 3-1-8

Current Loader Version

DVD+-R/RW RL-02A a.30

New CD Write Loader Version

DVD+-R/RW RL-02A a30

RECKEY:WRITE OPEN:CANCEL

Fig. 3-1-9

3-1-4 Setting to defaults at the factory

Perform the following procedure to reset this DVD recorder to the initial status when it was shipped from the factory (defaults):

1) Press the SETUP button on remote control and use the cursor buttons to choose the GENERAL menu.

2) Press the cursor button to move to the second level.

3) Use the cursor buttons to choose “Factory Set”, choose the SET icon, and then press the ENTER button.

3 - 3

Page 24

Details of Servicing and Troubleshooting > Troubleshooting

3-2 Troubleshooting

3-2-1 Troubleshooting electronic system

(1) SMPS Circuit

No 5.3VA

F101: Normal?

Ye s

BD101: Normal? Replace BD101.

Ye s

TH01: Normal? Replace TH01.

Ye s

D121 cathode: 5.3 V?

Ye s

IC103-1: Approx. 2.5 V?

Ye s

D126 cathode: Voltage? Replace D126.

Replace F101.

Replace D121.

Replace IC103.

D127 anode: Voltage? Replace D127.

Ye s

D128 cathode: Voltage?

Ye s

Power line on

VCR PCB shorted.

Replace D128.

Ye s

D129 cathode: Voltage? Replace D129.

Ye s

D130 cathode: Voltage? Replace D130.

Ye s

3 - 4

Page 25

Details of Servicing and Troubleshooting > Troubleshooting

No 12VA (power supply of capstan/cylinder motors)

Is 13 V supplied

to C130?

Ye s

D132 cathode: Voltage?

Ye s

Check D126, and replace if necessary.

Replace D132.

Check capstan motor and

cylinder motor, and

replace if necessary.

FL display does not light.

R107: Normal?

Check R107, and replace if necessary.

No REG12V

Is 13 V supplied

to Q126-C?

Ye s

Is 33 V supplied

to Q126-B?

Ye s

Is there "Hi" signal

on 'PWR CTL H' line

from SYSTEM circuit?

Ye s

Check D126, and

replace if necessary.

No CAP Vcc power supply

Check D126, and replace if necessary.

Check 33V line.

Check SYSTEM microprocessor.

Ye s

D128 cathode: Voltage?

Ye s

ZD151: Normal?

Ye s

Check D127, and

replace if necessary.

No 33V

Is 33 V supplied

to Q123-E?

Ye s

Check D128, and replace if necessary.

Check ZD151, and replace if necessary.

Check D130, and replace if necessary.

Is 30 V supplied

to Q120-C?

Ye s

Is 30 V supplied

to Q120-B?

Ye s

Is 33 V supplied

to Q121-C?

Ye s

Check Q120, and

replace if necessary.

Check D129, and replace if necessary.

Check ZD153, and replace if necessary.

Check 'HSR H' line from SYSTEM circuit?

Check Q121, Q122 and 33V line.

Q123-B: "Lo"?

Ye s

Check Q123, and

replace if necessary.

Check the 'PWR CTL H' line from SYSTEM circuit.

3 - 5

Page 26

Details of Servicing and Troubleshooting > Troubleshooting

(2) SYSTEM Circuit

Stops automatically

IC501-23: H.SW waveform?

Ye s

IC501-3: Take-up

reel pulses?

Ye s Ye s

Replace IC501. Replace RS501.

Supplement: Automatic stop may occur when grease or oil in the mechanism block has dried up.

No No

Check DPG/DFG signals from cylinder motor.

Is 5.0 V supplied to RS501?

Check power supply line.

Cassette tape does not load smoothly

Is 12 V supplied

to PMC01-8?

Ye s

Does "Hi" signal appear

at IC501-32 when

cassette is inserted?

Ye s

Check power supply line.

No No

Is 5.0 V supplied to R544?

Ye s

Check 5.3VA power supply line.

Check deck mechanism.

No key operation

Is 5 V supplied

to IC501-73?

Ye s

Does FL display change

when operation

button is pressed?

Check CS501 (CST SW) and its peripheral circuits.

See "No 5.3VA" in (1) SMPS circuit.

Replace any faulty switches.

3 - 6

Page 27

Details of Servicing and Troubleshooting > Troubleshooting

(3) Servo circuit

Faulty image during playback (noise on screen changes)

IC501-72: CTL pulses?

Ye s

IC501-67: CFG waveform?

Ye s

Does tracking operation

move CTL pulses?

Ye s

IC501-82:

Envelope waveform?

Ye s

Replace IC501.

No No

Is the height of A/C head appropriate?

Ye s

Check CTL pulse line.

Check CFG line.

Replace IC501.

See "No Y signal during playback" in (4) VIDEO circuit.

Readjust the height of A/C head.

Cylinder motor does not rotate.

Is 12 V supplied

to PMC01-8?

Ye s

PMC01-12: 2.8 V?

Ye s

Check connector between

PMC01 and cylinder motor.

No No

between IC501-34 and

See "No 12VA" in (1) SMPS circuit.

IC501-34:

DRUM PWM pulses?

Ye s

Check for short-circuit

PMC01-12.

PMC01-11: DFG pulses?

Ye s

IC501-65: DFG pulses?

Ye s

IC501-34:

DRUM PWM pulses?

Ye s

Check for short-circuit

between IC501-34 and

PMC01-12.

Replace capstan motor.

Check for short-circuit

between IC501-65 and

PMC01-11.

Replace IC501.

3 - 7

Page 28

Details of Servicing and Troubleshooting > Troubleshooting

Capstan motor does not rotate.

Is 12 V supplied

to PMC01-2?

Ye s

PMC01-9: 2.8 V?

Ye s

Check for short-circuit

between PMC01 and

capstan motor.

See "No CAP Vcc power supply" in (1) SMPS circuit.

IC501-33:

CAP PWM pulses?

Ye s

Check for short-circuit

between IC501-33 and

PMC01-9.

PMC01-1:

CFG pulses?

Ye s

IC501-67: CFG pulses?

Ye s

IC501-33:

CAP PWM pulses?

Ye s

Check for short-circuit

between IC501-33 and

PMC01-9.

Check capstan motor.

Check for short-circuit

between IC501-67 and

PMC01-1.

Replace IC501.

3 - 8

Page 29

Details of Servicing and Troubleshooting > Troubleshooting

(4) VIDEO circuit

No image in EE mode.

Is TU-VIDEO

signal supplied

IC301-15?

Ye s

Is 5V supplied to

IC301-4, 22, 47, 50, 52,

60, 84, 92?

Ye s

Does VIDEO signal

appear at IC301-29?

Ye s

Does VIDEO signal appear at PMD02-7

Ye s

Does VIDEO signal

appear at PMD02-5?

Ye s

Is VIDEO signal

appear at IC802-5?

Ye s

Check IC802 and tuner.

Check 5V line.

Check Q310 and Q905, and replace if necessary.

Replace VDR PCB.

Check the line between PMD02-5 and IC802-5.

C BUS signal

Is I

supplied to

IC301-73, 74?

Ye s

Check C329, and replace

if necessary: Is normal

status restored?

Check IC501, and if necessary.

Replace IC301.

Is VIDEO signal

supplied to IC901-4?

Ye s

Replace IC901.

Replace IC802.

3 - 9

Page 30

Details of Servicing and Troubleshooting > Troubleshooting

No Y signal during playback

Is 5V supplied to

IC301-4, 22, 47, 50,

52, 60, 84, 92?

Ye s

Is I

C BUS signal

supplied to

IC301-73, 74?

Ye s

Is V.H.SW signal

to IC301-80?

Ye s

Does approx. 3.4 V appear at IC301-80 when V.H.SW is Hi?

Ye s

Does Y signal appear

at IC301-33?

Check 5V line.

Check IC501, and replace if necessary.

Check R342, and replace if necessary.

Replace IC301.

No image during recording

Does E-E signal appear?

Ye s

Is 5V supplied to

IC301-4, 22, 47, 50,

52, 60, 84, 92?

Ye s

Does image appear

during playback?

Ye s

Does REC RF signal

appear at IC301-86, 90?

Ye s

Check cylinder motor

and connector.

See "No image in E-E mode" in (4) VIDEO circuit.

Check 5V line.

Check playback mode.

Replace IC301.

Ye s

Does Y signal appear

at IC301-31?

Ye s

Replace IC301.

Replace VDR PCB.

No chroma signal during playback

Is 5V supplied to

IC301-4, 22, 47, 50,

52, 60, 84, 92?

Ye s

Does chroma signal appear at IC301-29?

Ye s

Check 5V line.

Does X301 (4.43 MHz) generate a signal?

Ye s

Replace X301.

Replace VDR PCB.

Replace IC301.

3 - 10

Page 31

Details of Servicing and Troubleshooting > Troubleshooting

(5) AUDIO circuit

No audio in EE mode

Does signal appear at

IC801-6, 7 when AV1

audio is input?

Ye s

Does signal appear at

IC801-8, 9 when AV2

audio is input?

Ye s

Does signal appear at

IC801-10, 11 when AV3 audio is input?

Ye s

Does signal appear at

IC801-4, 5 during

DVD playback?

Ye s

Does signal appear at

IC801-2, 3 during tuner

reception?

Ye s

Is power supplied to

IC801-34, 40?

Check AV1 jack (SC901).

Check AV2 jack (SC901).

Check AV3 jack (JK764) and VDR P.C.B

Check VDR PCB, and replace if necessary.

Check tuner (TU701).

Check 5.0V and REG12V lines.

Ye s

Are control signals

supplied to

IC801-42, 43?

Ye s

Does audio signal appear

at IC801-16, 17?

Ye s

Does audio signal appear

at PMD02-19, 21?

Ye s

Does audio signal appear

at PMD02-23, 25?

Ye s

Check IC802 and

AV1 jack (SC901).

Check SYSTEM microprocessor (IC501), and replace if necessary.

Replace IC801.

Check wiring between IC801-16, 17 and PMD02-19, 21.

Replace VDR PCB.

3 - 11

Page 32

Details of Servicing and Troubleshooting > Troubleshooting

No audio during playback

Is power supplied to

IC801-34, 40?

Ye s

Check 5.0V and REG12V lines.

Envelope waveform at

IC801-44: At least

300 mVp-p?

Ye s

Are control signals

supplied to

IC801-42, 43?

Ye s

Does audio signal

appear at IC801-35, 37?

Ye s

Does audio signal

appear at IC801-16, 17?

Ye s

Does audio signal

appear at PMD02-19, 21?

Ye s

Is A. head switching

signal input to

Check P3D01 connector.

Check

SYSTEM microprocessor (IC501), and replace if necessary.

Check P3D01 connector.

Replace IC801.

Check wiring between

IC801-16, 17 and PMD02-19, 21.

IC801-41?

Ye s

NoNo

Check IC501, and replace if necessary.

Does audio signal

appear at PMD02-23, 25?

Ye s

Does audio signal

appear at IC802-21, 25?

Ye s

Check AV1 jack (SC901).

Replace VDR PCB.

Replace IC802.

3 - 12

Page 33

Details of Servicing and Troubleshooting > Troubleshooting

No Hi-Fi audio can be recorded

IIs power supplied to

IC801-34, 40?

Ye s

Are control signals

supplied to

IC801-42, 43?

Ye s

Does audio signal

appear at IC801-16, 17?

Ye s

Does FM audio signal

appear at IC801-36?

Ye s

Check P3D01 connector.

(If the connector is normal,

replace the cylinder.)

Check 5.0V and REG12V lines.

Check

SYSTEM microprocessor (IC501), and replace if necessary.

Check to see if audio

input signal appears for each input source (IC801-2,3,4,5,6,7,8,9,10,11).

Replace IC801.

(6) TUNER circuit

No image during RF output

Is 5 V supplied to

TU701-1?

Ye s

Is Hi signal supplied

to TU701-4?

Ye s

Does video signal

appear at TU701-6?

Ye s

Replace TU701.

Check 5.0V line.

Check voltage at IC501-26 (Hi: Tuner mode).

Check wiring between IC901-23 and TU701-6.

3 - 13

Page 34

Details of Servicing and Troubleshooting > Troubleshooting

3-2-2 Troubleshooting mechanical block

(1) Deck mechanism

No auto rewind at end of tape

Does supply end sensor

(ES502) output "Hi"? "Hi": At least 3.5V

"Lo": 0.7V or less to 1V

Ye s

IR LED (LD501):

0.8-1.5 V?

Ye s

Check SYSTEM circuit

(replace IC501)

No No

No fast forward or rewind

Is the position of

mode SW appropriate?

Ye s

Is 5 V supplied to

end sensor?

Ye s

Replace supply end

sensor (ES502).

Replace IR LED (LD501).

Align the boss of mode SW and hole in drive gear, and assemble them (see page 4-4).

Check 5.0V line.

Does capstan motor

rotate?

Ye s

SYSTEM circuit (replace IC501).

Is power supplied to PMC01-2?

Replace capstan motor.

Ye s

Check CAP Vcc line.

Stops automatically during playback and search

Is pressure roller

Do supply/take-up reel sensors output pulses?

SYSTEM microprocessor,

3 - 14

compressed to

capstan shaft?

Ye s

Check

and replace if

necessary.

alignment of cam gear

Check position

(see page 4-15).

Replace reel sensors.

Page 35

Details of Servicing and Troubleshooting > Troubleshooting

Tape transport system faulty during playback

Is pressure roller

compressed to capstan

shaft?

Ye s

Does take-up reel

rotate?

Ye s

Does capstan motor

rotate?

Ye s

Does cylinder motor

rotate?

Check position

alignment of cam gear (see page 4-15).

Is capstan belt normal? Replace capstan belt.

Is power supplied to

Replace capstan motor.

Is power supplied to

Ye s

Check D37 clutch

assembly.

PMC01-2?

Ye s

PMC01-8?

Check CAP Vcc line.

Check 13.5VA

(DRUM) line.

Ye s

PMC01-11:

DPG/DFG pulses?

Ye s

Check SYSTEM circuit.

Ye s

Replace cylinder motor.

Cassette tape cannot be inserted

Insert a cassette tape.

Does S/W lever assembly

operate normally?

Ye s

Check output level of

CS501 (CST/REC SW):

Tape with record prevention

tab ("L" >"H" >"L")

Tape without record prevention

tab ("L" >"H" >"L" >"H")

Ye s

Check CST holder assembly.

Replace CS501 (CST/REC SW).

Check SYSTEM circuit

(replace IC501).

3 - 15

Page 36

Details of Servicing and Troubleshooting > Troubleshooting

(2) Front loading mechanism

Cassette tape cannot be inserted

Does S/W lever assembly

operate normally?

Ye s Ye s

Is 5.0V power line on

VCR PCB normal?

Ye s

Does 5.0 V appear

between CS501

(CST/REC SW) and GND?

Ye s

Check mode SW or

SYSTEM circuit.

Is spring in S/W lever

assembly normal?

Does CS501

(CST/REC SW)

operate normally?

Check SYSTEM circuit

(replace IC501).

Check power supply line.

Is there short-circuit

between CS501

(CST/REC SW) and GND?

Repair shorted circuit.

Ye s

Replace spring.

Replace CS501 (CST/REC SW).

Cassette tape does not eject

Does L/D motor rotate?

Ye s

Does S/W lever assembly

operate normally?

Ye s

Does F/L arm assembly

operate normally?

Ye s

Does door open normally? Replace door opener.

Check L/D motor or

drive IC.

Replace S/W lever

assembly.

Replace F/L arm

assembly.

3 - 16

Page 37

Disassembly and Reassembly

4-1 Order of Disassembly

Refer to the Disassembly Flowchart in Fig. 4-1-1 for the order of removing components. When reassembling components, use the reverse order to removal unless otherwise specified.

Reading Disassembly Flowchart:

After locating the target component in the flowchart, remove all components of the target in sequence, following the arrows (routes) from the top of flowchart. If multiple routes exist to the target component from the top of flowchart, remove all the components on all the routes.

Parts to remove Item

To p cov e r

Front panel

DVD Multi drive

VDR P.C.B

4-2 (1)

4-2 (2)

4-2 (8)

4-2 (9)

Parts to remove Item Parts to remove Item

FAN motor

SMPS P.C.B

Deck mechanism

VCR P.C.B

JACK P.C.B, KEY P.C.B

4-2 (3)

4-2 (4)

4-2 (5)

4-2 (7)

4-2 (9)

TIMER P.C.B

4-2 (6)

Fig. 4-1-1 Disassembly Flowchart

4-2 Cabinet Disassembly

Information:

Numbers in figures are step numbers in disassembly procedure, and letters in brackets [ ] show the types of screw.

(1) Top Cover

1) Remove the seven screws [A].

2) Slightly open both ends on the front side of top cover and lift the top cover in the direction of the arrow.

To p C o v e r

1) Screw [A]

[A] M3X8 [Black]

1) Screw [A]

Fig. 4-2-1 Top cover

4 - 1

Page 38

Disassembly and Reassembly > Cabinet Disassembly

(2) Front Panel

1) Release three tabs (A), two tabs (B) and two tabs (C) in this order. (The tab (A) and the tab (C) should be released at the same time, respectively.)

2) Slowly move the front panel forward to remove it.

Caution when reassembling front panel:

Reattach the front panel while pushing the cassette door so that the cassette door open/close lever is positioned outside the door.

1) Tab(A)

1) Tab(B)

1) Tab(C)

1) Tab(B)

Front Panel

Cassette Door

Cassette Door open/close lever

Fig. 4-2-2 Front Panel

(3) FAN Motor

1) Unplug the connector on SMPS P.C.B.

2) Remove two screws [B] from the rear panel.

Caution when reinstalling FAN motor:

Wind the cord of FAN motor around the cords on VDR P.C.B, as shown in the figure, to secure them.

1) Connector

Wind around the cords.

2) Screw [B]

[B] M3X20 [Black]

FAN Motor

Fig. 4-2-3 FAN Motor

4 - 2

Page 39

Disassembly and Reassembly > Cabinet Disassembly

(4) SMPS P.C.B

1) Remove the power cable form rear panel.

2) Unplug the five connectors on SMPS P.C.B.

3) Remove screw [C] on rear panel, three screws [D] and screw [E] on the SMPS P.C.B, and then lift the SMPS P.C.B block.

4) Remove four screws [F] that secure the heat sink, and then separate the SMPS P.C.B.

Caution when reinstalling heat sink:

Secure the heat sink, identified [Caution] in the figure, on the back of P.C.B, and make sure that a cushion is attached between the heat sink and P.C.B.

3) Screw [D]

3) Screw [E]

2) Connector

SMPS P.C.B Block

3) Screw [D]

[C] M3X8 [Black]

Fig. 4-2-4 SMPS P.C.B (1)

[F] M3X6.5 [Gold]

4) Screw [F]

1) Power cable

3) Screw [C]

[D] M3X8 [Silver]

[E] M3X21 [Gold]

Caution

4) Screw [F]

Caution

Secure heat sink on the rear of PCB.

Fig. 4-2-5 SMPS P.C.B (2)

4 - 3

Heat sink

SMPS P. C . B

Cusion

Page 40

Disassembly and Reassembly > Cabinet Disassembly

(5) Deck mechanism

1) Unplug the connector from A/C head.

2) Remove four screws [D] and two screws [E].

3) While unplugging the three direct connectors that connect the deck mechanism and VCR P.C.B, lift the entire deck mechanism straight up.

2) Screw [E] Positioning pole

[D] M3X12[Silver]

3) Direct Connector

Guide LED

[E] M3X21[Gold]

Positioning pole

3) Direct Connector

Deck Mechanism

2) Screw [E]

1) Connector

2) Screw [D]

Fig. 4-2-6 Deck Mechanism

Caution when reinstalling deck mechanism:

Make sure of the following when reinstalling the deck mechanism:

The mode switch (MS501) on VCR P.C.B is positioned as in the figure shown below.

The drive gear on the back of deck mechanism is positioned as in the figure shown below. While keeping the two positioning poles and guide LEDs aligned, assemble the deck mechanism at right angles: The boss of mode switch will fit into the hole in drive gear.

Drive Gear

Deck Mechanism-Bottom view

Fig. 4-2-7 Reassembling Deck Mechanism

MODE SW

Align

BOSS

VCR P.C.B

4 - 4

Page 41

Disassembly and Reassembly > Cabinet Disassembly

(6) TIMER P.C.B

1) Remove the front holder.

2) Unplug the direct connectors from the VCR P.C.B.

3) Unplug the connector.

Information

Release the four stoppers of front holder: The TIMER P.C.B can be detached without removing the deck mechanism.

1) Front Holder

3) Connector

Stopper

2) Direct Connector

TIMER P.C.B

Fig. 4-2-8 TIMER P.C.B

(7) VCR P.C.B

1) Disconnect the two FFCs.

2) Remove four screws [C] from the rear panel.

3) Remove four screws [F] on the P.C.B.

4) Release the stopper.

5) Lift the entire VCR P.C.B, and then remove it in the direction of the arrow.

Caution when reinstalling VCR P.C.B:

Position the VCR P.C.B according to the positioning boss.

*FFC: Flexible flat cable

3) Screw [F]

1) FFC Connector

3) Screw [F]

2) Screw [C]

3) Screw [F]

4) Stopper

3) Screw [F]

VCR P.C.B

Positioning boss

Fig. 4-2-9 VCR P.C.B

4 - 5

[C] M3X8 [Black]

[F] M3X6.5 [Gold]

Page 42

Disassembly and Reassembly > Cabinet Disassembly

(8) DVD multi-drive

1) Unplug the connector on SMPS P.C.B.

2) Disconnect the FFC on the VDR P.C.B: Lift both sides of the connector up (a), tilt it in the

direction of arrow (b) to release the stoppers, and then disconnect the FFC.

3) Remove four screws [G], and then slowly lift the DVD multi-drive.

4) Release the screws on both sides of the drive holder, and then remove the DVD multi-drive.

2) FFC

1) Connector

3) Screw [G]

Drive Holder

*FFC: Flexible flat cable

[G] M3X8 [Silver]

DVD Multi Drive

3) Screw [G]

Cusion

Fig. 4-2-10 DVD Multi Drive

(9) VDR, JACK and KEY P.C.Bs

VDR P.C.B

1) Unplug the connector and disconnect the two FFCs on the VDR P.C.B.

2) Remove five screws [F], and then remove the VDR P.C.B.

JACK P.C.B

3) Unplug the connector on JACK P.C.B.

4) Remove two screws [F], and then remove the JACK P.C.B.

KEY P.C.B

5) Remove screw [D], and then remove the KEY P.C.B.

2) Screw [F]

[D] M3X12 [Silver]

[F] M3X6.5 [Gold]

VDR P.C.B

*FFC: Flexible flat cable

2) Screw [F]

1)FFC

2) Screw [F]

1)FFC

1) Connector

JACK P.C.B

Lay out the cable from

KEY P.C.B

5) Screw [D]

KEY PCB as shown.

Fig. 4-2-11 VDR P.C.B, JACK P.C.B, KEY P.C.B

4 - 6

4) Screw [F]

3) Connector

4) Screw [F]

Page 43

Disassembly and Reassembly > Deck Mechanism Parts Locations

4-3 Deck Mechanism Parts Locations

Disassembly start no.

2,3 2,3,4 2,3,4,5

Fig. 4-3-1 Top View of Mechanism-1

2,3 2,3

2,3,12,13

Fig. 4-3-2 Top View of Mechanism-2

16 18

16 16

16,17

20,21

20 20,21,22,

Item no.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

Part name

Drum assembly Top plate CST holder assembly F/L rack gear assembly Door opener F/L arm assembly S/W lever assembly L/D motor assembly Wheel gear F/E head A/C head assembly T brake assembly Tension arm assembly S reel/T reel P4 base assembly Lid opener Pressure arm assembly Take-up arm Capstan supporter Capstan belt, Capstan motor F/R lever

D37 clutch assembly

Drive gear/cam gear

Sector gear

24 25

Capstan brake assembly

Slider plate

Disassembly reference diagram

A-1 A-2 A-2 A-2 A-2 A-2 A-2 A-3 A-3 A-3 A-3 A-4 A-4 A-4 A-5 A-5 A-5 A-5 A-6 A-6

A-6 A-6 A-7 A-7 A-7 A-7

23,24,25

33 27

23,24,25,26 20,21,22, 23,24,25,26 20,21,22, 23,24,25,26 24

2,3,13, 24,30 24,30 2,3,13

20,21,22,

Tension lever

Spring lever

Brake lever

P2 gear assembly/ P3 gear assembly

P2 base assembly/ P3 base assembly

Loading base

Tension base

Jog idler arm assembly

A-7

A-8

A-8 A-9 A-9

Fig. 4-3-3 Bottom View of Mechanism

Information

Use the reverse procedure to removal when reinstalling components.

4 - 7

Page 44

Disassembly and Reassembly > Deck Mechanism Disassembly

4-4 Deck Mechanism Disassembly

(1) Drum assembly (Fig. A-1)

1) Disconnect the flat cable between the drum assembly and capstan motor.

2) Remove three screws (S1), and then remove the drum assembly upward.

3) Release hooks (H1, H2) only if necessary, and then separate the FPC holder and FPC cap.

Drum Ass'y

Flat cable

FPC Holder

FPC Cap

FPC Drum

Diagram viewed from the opposite side

Fig. A-1 Drum Ass'y

(S-1)

FPC Holder

FPC Cap

4 - 8

Page 45

Disassembly and Reassembly > Deck Mechanism Disassembly

(2) Top plate (Fig. A-2-1)

1) Use a flat-bladed screwdriver, etc. to release portion (B) at the right of top plate in the direction of the arrow.

2) Use the same procedure to release portion (B’) at the left of top plate in the direction of the arrow.

Note:

When reinstalling the top plate, align portions (C) and (C’).

(3) CST holder assembly (Fig. A-2-2)

1) Move the CST holder assembly in the direction of arrow (D) to release the CST holder assembly from the slit in chassis.

2) Also release the CST holder assembly from the right slit in chassis.

Note:

When reinstalling, first insert portion (E) of the CST holder assembly into the slit in chassis, and then fit the remaining bosses into the slits in chassis in sequence.

(B')

CST Holder Ass'y

(D)

(B)

Chassis

(C)

(C')

(4) F/L rack gear assembly (Fig. A-2-3)

1) Release hook (H3), and then slide the F/L rack gear assembly in the direction of arrow (A) to remove it.

Note:

When reinstalling the F/L rack gear assembly, assemble the drive gear and F/L rack gear as shown in the figure.

(5) Door opener (Fig. A-2-4)

1) Turn the door opener clockwise to release it from the guide hole in chassis.

(6) F/L arm assembly (Fig. A-2-5)

1) Turn the left side of F/L arm assembly in the direction of the arrow to release it from the slit in chassis.

(7) S/W lever assembly (Fig. A-2-6)

1) Release hook (H4) and push it in the direction of the arrow to remove the S/W lever.

Note:

Take care not to lose the spring attached to the S/W lever assembly.

F/L Rack Gear Ass'y

Drive Gear

Chassis

(H4)

4 - 9

Page 46

Disassembly and Reassembly > Deck Mechanism Disassembly

Top Plate

(Fig.A-2-1)

(H4)

(B')

F/L Arm Ass'y

(Fig.A-2-5)

S/W Lever Ass'y

(Fig.A-2-6)

(B)

(C)

CST Holder Ass'y

(Fig.A-2-2)

(E)

Door Opener

(Fig.A-2-4)

F/L Rack Gear Ass'y

(Fig.A-2-3)

Fig. A-2 Top Plate, CST Holder Ass'y, F/L Rack Gear Ass'y,

Door Opener, F/L Arm Ass'y, S/W Lever Ass'y

(H3)

(A)

4 - 10

Page 47

Disassembly and Reassembly > Deck Mechanism Disassembly

(8) L/D motor assembly (Fig. A-3-1)

1) Unplug connector (C1).

2) Remove screw (S4), and then remove the L/D motor assembly.

(9) Wheel gear (Fig. A-3-2)

1) Release hook (H5) of wheel gear shaft, and then lift the wheel gear.

A/C Head Ass'y

(Fig.A-3-4)

(A)

F/E Head

(Fig.A-3-3)

(10) F/E head (Fig. A-3-3)

1) Turn the entire E/F head in the direction of arrow (A) to release its engagement with chassis.

(11) A/C head assembly (Fig. A-3-4)

1) Remove screw (S5), and then lift the A/C head assembly.

(H5)

Wheel Gear

(Fig.A-3-2)

(S5)

(C1)

L/D Motor Ass'y

(Fig.A-3-1)

Fig. A-3 L/D Motor Ass'y, Wheel Gear, F/E Head, A/C Head Ass'y

(S4)

4 - 11

Page 48

Disassembly and Reassembly > Deck Mechanism Disassembly

(12) T brake assembly (Fig. A-4-1)

1) Release the tension spring from hook (H6) of chassis.

2) Turn the T brake arm counterclockwise to release its engagement with chassis, and then lift it.

(13) Tension arm assembly (Fig. A-4-2)

1) Release the tension spring from hook (H7) of spring lever.

2) Release hook (H8) of tension base, and then lift the tension arm assembly.

Tension Arm Ass'y

(Fig.A-4-2)

Tension Spring

(14) S reel and T reel (Fig. A-4-3)

1) Lift the S reel and T reel. Take care during reassembly that the S reel and T reel are not reversed.

S reel T reel

T reel

(Fig.A-4-3)

S reel

(Fig.A-4-3)

Tension Spring

(H8)

(H7)

(H6)

Fig. A-4 T Brake Ass'y, Tension Arm Ass'y, S reel, T reel

T Brake Ass'y

(Fig.A-4-1)

4 - 12

Page 49

Disassembly and Reassembly > Deck Mechanism Disassembly

(15) P4 base assembly (Fig. A-5-1)

1) Release portion (A) of the P4 base assembly from the boss of chassis.

2) Turn the P4 base assembly in the direction of the arrow to release its engagement with chassis.

(16) Lid opener (Fig. A-5-2)

1) Release portion (B) of the lid opener from the boss of chassis.

2) Turn the lid opener in the direction of the arrow to release its engagement with chassis.

(17) Pressure arm assembly (Fig. A-5-3)

1) Lift the pressure arm assembly.

Note:

A spring is attached between the pressure arm assembly and chassis: Take care not to lose it. When reinstalling the pressure arm assembly, make sure that you insert the boss at portion (C) of pressure arm assembly into the slit in cam gear at the back of chassis.

(18) Take-up arm (Fig. A-5-4)

1) Lift the take-up arm to release it from hook (H9) of chassis.

Note:

When reinstalling the take-up arm, make sure that you insert the boss at portion (D) of takeup arm into the slit in cam gear at the back of chassis.

Lid Opener (Fig.A-5-2)

P4 Base Ass'y

(Fig.A-5-1)

(A)

(B)

Pressure Arm Ass'y

(Fig.A-5-3)

(C)

(H9)

(D)

Take-up Arm

(Fig.A-5-4)

Chassis

BOSS (Pressure Arm Ass'y)

Cam Gear

BOSS (Take-up Arm)

Fig. A-5 P4 Base Ass'y, Lid Opener, Pressure Arm Ass'y, Take-up Arm

4 - 13

Page 50

Disassembly and Reassembly > Deck Mechanism Disassembly

(19) Capstan supporter (Fig. A-6-1)

1) Use a Philips (+) screwdriver to turn the capstan supporter 90° clockwise and release it from the chassis.

(20) Capstan belt (Fig. A-6-2) and

capstan motor (Fig. A-6-3)

1) Remove the capstan belt.

2) Remove three screws (S6), and then lift the capstan motor.

Capstan Supporter

(Fig.A-6-1)

Capstan Motor

(21) F/R lever (Fig. A-6-4)

1) Release lock tab (L1) in the direction of the arrow, and then lift the F/R lever.

(22) D37 clutch assembly (Fig. A-6-5)

1) Remove washer (W1), and the lift the D37 clutch assembly.

Capstan Belt

(Fig.A-6-2)

(Fig.A-6-3)

(S6)

(L1)

Washer (W1)

D37 Clutch Ass'y

(Fig.A-6-5)

F/R Lever

(Fig.A-6-4)

Chassis

Fig. A-6 Capstan Supporter, Capstan Belt, Capstan Motor,

F/R Lever, D37 Clutch Ass'y

4 - 14

Page 51

Disassembly and Reassembly > Deck Mechanism Disassembly

(23) Driver gear (Fig. A-7-1) and

cam gear (Fig. A-7-2)

1) Remove washer (W2), and then lift the drive gear.

2) Release hook (H10) of the cam gear shaft, and then lift the cam gear.

Note:

Align these positions of gears during reassembly:

1) Align hole (A) in drive gear and hole (B) in cam gear.

2) Align hole (C) in cam gear and the hole in chassis.

(24) Sector gear (Fig. A-7-3)

1) Release hook (H11) of sector gear, and then lift the sector gear.

(25) Capstan brake assembly (Fig. A-7-4)

1) Release lock tab (L2) from the surface of chassis, and then lift the capstan brake.

(26) Slider plate (Fig. A-7-5)

1) Release the engagement with chassis, and then lift the slider plate.

(27) Tension lever (Fig. A-7-6)

1) Turn the tension lever counterclockwise to release it from guide (A) of chassis.

(28) Spring lever (Fig. A-7-7)

1) Turn the spring lever in the direction of the arrow to release portion (B) from the guide of chassis.

(29) Brake lever (Fig. A-7-8)

1) Lift the brake lever.

Note:

When reinstalling the sector gear and slider plate, perform the position alignment shown in the figure on next page.

Hole (B) in Cam Gear

Hole (C) in Can Gear

Hole (A) in Drive Gear

Capstan Brake Ass'y

(Fig.A-7-4)

(H10)

Cam Gear (Fig.A-7-2)

(W2)

Washer

Drive Gear (Fig.A-7-1)

(L2)

Brake Lever (Fig.A-7-8)

Chassis

(H11)

Sector Gear

(B)

(A)

(Fig.A-7-3)

Slider Plate

(Fig.A-7-5)

Tension Lever

(Fig.A-7-6)

Spring Lever

(Fig.A-7-7)

Loading Base

Fig. A-7 Drive Gear, Cam Gear, Sector Gear, Capstan Brake Ass'y, Slider Plate,

Tension Lever, Spring Lever, Brake Lever

4 - 15

Page 52

Disassembly and Reassembly > Deck Mechanism Disassembly

(30) P2 gear assembly (Fig. A-8-1) and

P3 gear assembly (Fig. A-8-2)

1) Lift the P3 gear assembly.

2) Lift the P2 gear assembly.

Note:

When reinstalling the P2 and P3 gear assemblies, be sure to align the holes in them.

Hole in P2 Gear Ass'y

Hole in P3 Gear Ass'y

(31) P2 base assembly (Fig. A-8-3) and

P3 base assembly (Fig. A-8-4)

1) Slide the P2 base assembly in the direction of arrow (A) to release it from the guide hole in chassis.

2) Slide the P3 base assembly in the direction of arrow (B) to release it from the guide hole in chassis.

(32) Loading base (Fig. A-8-5)

1) Release three hooks (H12, H13, H14), and then lift the loading base.

P3 Gear Ass'y

(Fig.A-8-2)

BOSS (Tension Lever) Gear Glove (A)

Hole (B) in Slider Plate

Chassis

P3 Base Ass'y

(Fig.A-8-4)

(B)

(H12)

(H14)

P2 Base Ass'y

(Fig.A-8-3)

P2 Gear Ass'y

(Fig.A-8-1)

(H13)

Loading Base

(Fig.A-8-5)

(A)

Fig. A-8 P2 Gear Ass'y, P3 Gear Ass'y, P2 Base Ass'y, P3 Base Ass'y, Loading Base

4 - 16

Page 53

Disassembly and Reassembly > Deck Mechanism Disassembly

(33) Tension base (Fig. A-9-1)

1) Release portion (A) of tension base from the boss of chassis.

2) Turn the tension base in the direction of the arrow to release its engagement with chassis.

Tension Base

(Fig.A-9-1)

(A)

(34) Jog idler arm assembly (Fig. A-9-2)

1) Hold portions (B) and (C) of jog idler arm assembly on both sides, and then remove the arm assembly.

Note:

Take care that portion (D) does not strike the chassis during disassembly.

Jog Idler Arm Ass'y

(Fig.A-9-2)

(B)

(C)

(D)

Chassis

Fig. A-9 Tension Base, Jog Idler Arm Ass'y

4 - 17

Page 54

Disassembly and Reassembly > Checking Mode after Reassembling Deck Mechanism

4-5 Checking Mode after Reassembling Deck Mechanism

After disassembling the deck mechanism, check the positions of the following gears when reassembling it: If the positions of gears drift, the deck mechanism will not operate normally. Turn the cam gear with the L/D motor assembly removed, and make sure that loading and unloading are performed normally.

1) Make sure that hole (A’) in chassis on the surface of deck mechanism is aligned with hole (A) in cam gear: If they are not aligned, remove the L/D motor assembly, and then turn the cam gear until the holes are aligned.

2) Make sure that the small hole in cam gear on the back of deck mechanism is aligned with hole (B) in drive gear: If they are not aligned, remove the drive gear, align their positions, and then reassemble the gears.

L/D Motor Ass'y

(A')

Top View of Deck Mechanism

Fig. 4-5-1 Cam Gear Position Alignment

Cam Gear

(A)

Hole in Chassis

Hole in Cam Gear

Cam Gear

(B)

Drive Gear

Bottom View of Deck Mechanism

Fig. 4-5-2 Drive Gear Position Alignment

The holes in cam gear and drive gear must be aligned.

4 - 18

Page 55

Adjustment / Maintenance

5-1 Set-up for Adjustment

(1) Test equipment necessary for adjustment

1) Dual-trace oscilloscope

2) Color bar generator

3) Monitor TV

4) Blank tape (VHS)

(2) Connections of test equipment

Connect the equipment as follows when otherwise not specified.

1) Connect a color bar generator to the video input jack.

2) Connect a monitor TV to the EURO AV1 AUDIO/VIDEO jack.

(3) Cautions on adjustment

1) The following conditions apply when otherwise not specified. Probe of oscilloscope: 10:1 Synchronization of oscilloscope: Internal sync

2) When performing more than one adjustment, follow the specified oder.

(4) List of Adjustment jigs

Alignment tape

Torque Gauge Adaptor

Cassett Torque Meter

(SRK-VHT-303)

300

Guide roller screwdriver

Parts No. 7069064

Torque Gauge (600 g/cm)

Philips (+) screwdriver

5 - 1

Page 56

Adjustment / Maintenance > VCR Electrical Adjustment

5-2 VCR Electrical Adjustment

5-2-1 Head switching adjustment

(1) Supplement

If the SYSTEM microprocessor (IC501) or EEPROM (IC503) on VCR P.C.B is replaced, be sure to

perform the head switching adjustment.

If the drum assembly is replaced, be sure to perform the X-value adjustment and head switching

adjustment.

(2) Adjustment method

1) Connect oscilloscope CH-1 to the H/SW terminal on VCR P.C.B, and CH-2 to the VCR VIDEO terminal on VDR P.C.B.

2) Use CH-1 (H/SW) to trigger the oscilloscope.

3) Play back the alignment tape.

4) Play back the tape for approx. 3 seconds, while simultaneously holding down the REC and PLAY buttons on recorder for several seconds (FL display:

5) Simultaneously hold down the REC and PLAY buttons on recorder for several seconds again: The adjustment will automatically start. When the adjustment is complete, “PG” will appear in the FL display.

6) Observe the waveforms on oscilloscope, and make sure that the phase from the vertical sync signal to the leading edge (trigger position) of H/SW pulse is 6.5H ± 0.5H.

_ _

[VCR

VIDEO]

(CH2)

VDR P.C.B

H/SW

(5V/div.)

VCR VIDEO (500mV/div.)

(CH1)

H/SW

(TP)

VCR P.C.B

Fig. 5-2-1 Connection Diagram

(50µs/div.)

6.5H±0.5H

Trigger Point

Oscilloscope

H/SW (VCR P.C.B)

CH1 CH2

"VCR VIDEO" (VDR P.C.B)

V-Sync

Fig. 5-2-2 Waveform Diagram

5 - 2

Page 57

Adjustment / Maintenance > Deck Mechanism Adjustment

5-3 Deck Mechanism Tape Transport System Adjustment

The tape transport components were precisely adjusted before the recorder was shipped from the factory. They do not need to be adjusted except for the following cases:

1) Noise appears on the screen during playback.

2) Tape is damaged.

3) Any of the tape transport components is replaced

If any of the above occurs, or if any of the tape transport components is replaced, first run a E-240 tape and make sure that excessive tape winkling does not occur at the P2/P3 guide rollers, tape run guideline on lower drum, A/C head or P4 guide post.

If tape winkling occurs at the P2/P3 guide rollers or tape run guideline on lower drum assembly,

turn the height adjustment screws of P2/P3 guide rollers until winkling is eliminated See “5-3-1 Guide roller height adjustment”.

If tape winkling occurs at the post of P4 base assembly, perform the A/C head height and tilt

adjustments. See “5-3-2 A/C head adjustment”.

5-3-1 Guide roller height adjustment

P2/P3 Guide Roller Height Adjustment Screw

(1) Rough adjustment

1) Run a E-240 blank tape, and check the tape run guideline on lower drum.

2) If the tape rides under the tape run guideline, turn the guide roller height adjustment screw to the left to adjust.

3) If the tape is above the tape run guideline, turn the guide roller height adjustment screw to the right to adjust.

(2) Fine adjustment

1) Connect oscilloscope CH-1 to the H/SW terminal on VCR P.C.B, and CH-2 to the RF terminal.

2) Use CH-1 (H/SW) to trigger the oscilloscope.

3) Play back the alignment tape. (If the drum assembly is replaced, adjust the tracking so that the FM output is maximal.)

4) Finely adjust the guide roller height adjustment screw so that the supply and take-up portions of RF envelope are flat.

5) Move the tracking in both directions, and make sure that the FM envelope waveform drops evenly.

Fig. 5-3-1 P2/P3 Guide Roller Height

Adjustment Screws

(CH2)

VCR P.C.B

P2 Guide Roller Adjust

P3 Guide Roller Adjust

(CH1)

H/SW

Oscilloscope

CH-1 CH-2

H/SW

(VCR P.C.B)

Adjust the P2/P3 guide roller height adjustment screws to flatten the waveform.

RF (VCR P.C.B)

5 - 3

Tracking optimized

When tracking is moved in both directions

Fig. 5-3-2 Guide Roller Fine Adjustment

Page 58

Adjustment / Maintenance > Deck Mechanism Adjustment

1kHz AUDIO

7kHz AUDIO

Maximize output level.

5-3-2 A/C head adjustment

(1) Rough adjustment (height adjustment and tilt adjustment)

(Play back the alignment tape: Perform this adjustment only if no audio signal is output.)

1) Make sure that the A/C head base assembly satisfies the specifications in Fig. 5-3-3(a).

2) Run a E-240 blank tape and make sure that no curling or winkling of tape occurs at the lower flange of P4 guide post [see Fig. 5-33(c)].

3) If curling or winkling occurs, slowly turn tilt adjustment screw (C) to precisely adjust [see Fig. 5-3-3(b)].

4) Finely adjust height adjustment screw (B) and tilt adjustment screw (C) so that the lower edge of tape is positioned at the bottom of control head as shown in Fig. 5-33(c).

Azimuth Adjustment Screw (A)

X-Value Adjusting Hole

Fixing Screw

A/C Head Ass'y

(b) A/C head adjustment screws

Tilt Adjusting Screw (C)

Height Adjusting Screw (B)

(2) Tape transport check between P4 guide post and pressure roller

1) Play back a tape recorded in SP mode.

2) Set to the reverse playback mode, and make sure that no curling or wrinkling of tape occurs

(3) Fine adjustment (azimuth adjustment)

1) Play back the alignment tape.

2) Observe the audio output waveform on

3) Finely adjust azimuth adjustment screw (A)

Tape

8.3mm

A/C Head Base

(a) A/C head base specifications

Control Head

P4 Guide Post

0.2-0.25 mm from bottom edge of tape

Parallel

Fig. 5-3-3 A/C Head Rough Adjustment

between the P4 guide post and pressure roller. If curling or wrinkling occurs, slowly turn tilt adjustment screw (C) to precisely adjust [see Fig. 53-3(b)].

oscilloscope.

so that the audio output level is maximal at the 1 kHz and 7 kHz audio signals of alignment tape.

Fig. 5-3-4 A/C Head Fine Adjustment

5 - 4

Page 59

Adjustment / Maintenance > Deck Mechanism Adjustment

5-3-3 X-value adjustment

1) Connect oscilloscope CH-1 to the H/SW terminal on VCR P.C.B, and CH-2 to the RF terminal.

2) Use CH-1 (H/SW) to trigger the oscilloscope.

3) Play back the color-bar portion of alignment tape, and activate auto tracking.

4) Slightly loosen the screw that secures the A/ C head (do not loosen excessively).

5) Insert a 3-4 Philips (+) screwdriver into the hole in chassis of X-value adjustment mechanical block, tilt the screwdriver to the left and right until the CH-2 FM ENV output is maximal.

6) Tighten the securing screw.

(CH1)

(CH2)

H/SW

VCR P.C.B

(a) Connection Diagram

Left

X-VALUE Adjusting SLIT

Oscilloscope

CH-1 CH-2

H/SW

(VCR P.C.B)

Hole in Chassis

Right

RF (VCR P.C.B)

Fixing Screw

A/C Head Ass'y

(b) Adjustment screw diagram

Fig. 5-3-5 X-Value Adjustment

5-3-4 Adjustments after replacing drum assembly

After replacing the drum assembly, check and adjust the following:

1) Guide roller height adjustment

2) X-value adjustment

3) Head switching adjustment

5 - 5

Page 60

Adjustment / Maintenance > Deck Mechanism Adjustment

5-3-5 Check after adjustment

(1) FM output check when switching from VCR search to playback

Press the playback button during VCR search, and make sure that the appropriate amplitudes of FM envelope and audio outputs can be obtained within the specified time.

1) Connect oscilloscope CH-1 to the FM ENV terminal on VCR P.C.B, and CH-2 to the audio output terminal.

2) Play back the alignment tape.

3) Observe the waveforms on oscilloscope: Measure the times until the appropriate amplitudes are obtained when the playback button is pressed during reverse search. Specifications: FM envelope within 5 seconds; audio output within 10 seconds

4) Press the playback button during forward search, and measure the times in the same way.

5) If the specifications are not satisfied, perform the following adjustments again:

A/C head adjustment X-value adjustment

(2) Tape curling/wrinkling check

1) Run an E-240 tape, and make sure that no curling or wrinkling occurs at the start, middle or end of tape.

2) If curling or wrinkling occurs, perform the following adjustments again:

Guide roller height adjustment A/C head adjustment

5-3-6

Method of setting the mechanism to loading status without inserting tape

1) Unplug the power cord from AC outlet.

2) Remove the top cover and front panel.

3) Use black masking tape, etc. to shield light from the end sensors on both sides.

4) Plug the power cord into AC outlet to power the recorder.

5) While pressing the stop lever of CST holder assembly, load the CST holder assembly (it will automatically load midway).

6) When the CST holder assembly descends to chassis, the cylinder will rotate, and the P2/P3 base assemblies will operate in the loading status to go to stand by.

This status will allow you to input each mode. However, when rewind is performed, the power will turn off in a few seconds, since the take-up reel is in the stop status and no reel pulse can be detected. Therefore, for rewind operation, manually rotate the take-up reel.

5 - 6

Page 61

Adjustment / Maintenance > Deck Mechanism Adjustment

5-3-7 Reel torques

(1) Preparations when using a torque gauge

1) Set the recorder to the loading status, referring to “5-3-6 Method of setting the mechanism to loading status without inserting tape”.

2) Assemble the torque gauge adapter and torque gauge, and place them on reel.

Torque Gauge

Torque Gauge Adaptor

Reel Table

3) Check the torque values in the following operation modes:

Item

Fast forward torque Rewind torque Playback torque Reverse search torque

Operation mode

Fast forward Rewind Playback Reverse search

Gauge

Torque gauge Torque gauge Torque meter Torque meter

Measured reel

Take-up Supply Take-up Supply

Torque value

At least 400 g/cm At least 400 g/cm 40-100 g/cm 120-210 g/cm

5 - 7

Page 62

Adjustment / Maintenance > Maintenance

5-4 Maintenance

5-4-1 Maintenance and inspection

The deck mechanism uses very precise components to ensure the compatibility between VCR models: If any of the mechanical components are dirty or the performance is degraded, the symptoms will be similar to those when the mechanism is faulty. For clear images, it is necessary to periodically clean and lubricate the mechanism and replace any faulty components.

(1) Reference for maintenance and inspection

The time for maintenance and inspection depends on the environment and the way the VCR is used:

For ordinary home use, maintenance and inspection every 1,000 hours will ensure clear images.

Time used per day

Approx. 1 hour Approx. 2 hours Approx. 3 hours

Period for reaching 1,000 hours

Approx. 3 years Approx. 1.5 years Approx. 1 year

(2) Items necessary for maintenance and inspection

1) Head cleaning kit

2) Oil and grease for maintenance

3) Alcohol

4) Cleaning cloth

(3) Cleaning video heads

It is recommended that you use a generally available cleaning tape to clean the heads. If noise cannot be removed completely with a cleaning tape, use a cleaning cloth to clean the heads and transport system.

[Cleaning method using cleaning tape]

Play back the cleaning tape in the same way as an ordinary tape for approx. 30 seconds.

[Cleaning method using cleaning cloth]

1) Lightly fit the cleaning cloth to the head, and turn the rotating cylinder gently to the left and right. Turn the rotating cylinder one turn to also clean its outer circumference. (Cleaning with cleaning cloth moistened with alcohol is more effective.)

2) Do not use a cleaning cloth to which oil adheres or a dirty one.

Drum Ass'y

Cleaning cloth

Head Tip

Lightly fit cleaning cloth to the head tip and

Moisten with alcohol.

turn the cylinder to the left and right.

Fig. 5-4-1 Cleaning Method using Cleaning Cloth

5 - 8

Page 63

Adjustment / Maintenance > Maintenance

(4) Problem guide

If the time of using the VCR exceeds approx. 1,000 hours, the phenomena shown in Table 5-4-1 may appear on playback images. These phenomena may disappear when the mechanical components are cleaned or lubricated. Check the use time, etc., and if judged that it is time for maintenance and inspection, inspect the portions to be checked according to Table 5-4-1.

Note:

If normal operation is not restored after cleaning, the components marked in component replacement column probably need to be replaced, since their performance may be degraded.

Table 5-4-1 List of phenomena

Phenomenon

Color beats

Poor S/N, no color Vertical jitter, horizontal jitter Low volume, sound distortion Tape twisted

No tape run, slack tape

(a)

(b)

Cause

Dirt on F/E head

Dirt on video heads Dirt on video heads (drum), tape transport system Dirt on A/C head

Dirt on pressure roller, capstan belt Insufficient torque of D37 clutch assembly Dirt on video heads (drum), tape transport system

Portions to be checked

Clean part of F/E head where tape is in contact Clean video heads Clean video heads (drum) and tape transport system. Clean part of A/C head where tape is in contact Clean pressure roller and capstan shaft. Check capstan belt. Check torque of D37 clutch assembly Clean and check tape transport system.

Component

replacement

Component

(a)

(b) (b)

(c)

(d) (e) (f)

(e)

(c)

(d)

(f)

Fig. 5-4-2 Locations of Components to Be Checked

5 - 9

Page 64

Adjustment / Maintenance > Maintenance

5-4-2 Lubricating oil and greasing

(1) Greasing procedure

Coat components with an appropriate amount of grease applied to a rod or brush. Take care that excessive grease does not adhere to tape transport system or drive system. If there is too much grease on them, use gauze moistened with alcohol to wipe it off. Periodically grease components with a reference of 500-hour use.

(2) Greases to be used

KG-684G (green) PL-433 (yellow)

(3) Lubricating/coating locations

P2/P3 guide tape run portions

P2/P3 guide supports [KG-684G]

Wheel gear shaft P2/P3 guide tape run portions [KG-684G]

[KG-684G]

Pressure arm shaft [KG-684G]

Reel Shaft [PL-433]

Chassis-Top View

Side of Slider plate guide [KG-684G]

Inside of guide rail and shaded portion [KG-684G]

Cam gear shaft [KG-684G]

Drive gear shaft [KG-684G]

P2/P3 guide supports [KG-684G]

Groove of D37 clutch shaft [KG-684G]

Chassis-Bottom View

P2/P3 guide tape run portions [KG-684G]

Side of slider plate guide [KG-684G]

Chassis-L

Chassis-R

Fig. 5-4-3 Chassis

5 - 10

Page 65

Adjustment / Maintenance > Maintenance

Sector Gear Cam Gear

Cam portion [PL-433]

Gear portion [PL-433]

Wall surfaces of cam [KG-684G]

Loading Base Drive Gear

Wall surfaces of boss [PL-433]

Wall surfaces of gear and shaded portion [PL-433]

F/R Lever

P2 Gear Ass'y

Cam portion [PL-433]

Tension Base

Clutch contact portion [PL-433]

Cam portion [KG-684G]

FL Rack Gear

Brake lever moving portions [KG-684G]

Side of guide [KG-684G]

Sector gear moving portion [KG-684G]

F/R lever moving portion [KG-684G]

Spring lever moving portion [KG-684G]

Slider Plate

Tension arm shaft support [PL-433]

Tension lever moving portion [KG-684G]

Side of guide [KG-684G]

Fig. 5-4-4 Mechanical Components

5 - 11

Page 66

Exploded View and Parts List

6-1 Exploded Views

6-1-1 Cabinet Section

463

250

463

280

286

283

A26 DVD Multi Drive [Unit replacement]

291

JACK P.C.B [Component replacement]

274

KEY P.C.B [Component replacement]

457

A26A

459

469

Note: Components without any numbers in exploded views were not

463

284

464

459

A52 VDR P.C.B [Circuit Board assembly replacement]

290

459

469

assigned as service parts as of the date of issue of this manual.

469

457

A00

469

VCR P.C.B [Component replacement]

463

A43

464

TIMER P.C.B [Component replacement]

459

469

266

SMPS P.C.B [Component replacement]

463

469

263

264

463

457

469

276

470

468

257

323

255

469

256

457

470

469

321

469

452

261

452

6 - 1

261

465

452

465

261

265

300

465

Page 67

6-1-2 F / L Mechanism Section

103

110

105

112

113

106

102

100

114

A21

107

A23

116

A24

115

A22

109

054A

054

6 - 2

Page 68

6-1-3 Deck Mechanism Section - Top view

026

031

079

011

017

022

A01

003

012

004

008

013

016

409

014

015

009

405

028

029

021

024

031

406

6 - 3

Page 69

6-1-4 Deck Mechanism Section - Bottom view

051

518

055

060

056

058

052

517

052A

061

064

A11

077

067

066

065

A12

068

069

070

023

078

076

410

6 - 4

Page 70

THE UPDATED PARTS LIST

FOR THIS MODEL IS

AVAILABLE ON ESTA

Page 71

PMD02

PN304

P3D02

PN303

VDR P.C.B

VCR P.C.B

CONNECTOR

special handling techniques described under the "Electrostatic Protection

When replacing any of these components.

ese ese

865

386

Schematic,Wiring Diagrams

Special note :

Note :

drawing was prepared).

se only the same type

ABL0

FAN

P104

8.7V

GND

P104

S.M.P.S P.C.B

P103

ABL4

CN621 CN620

CON401

R493

JACK P.C.B

ABL15

15 14 13 12 11 10

9 8 7 6 5 4 3

15 14 13 12 11 10

9 8 7

PN7605

4 3

CFG

CAP.VCC

SERVO VCC

CAPSTAN

MOTOR

PMC01

I.LIMIT

CAP.REV'H'

MOTOR GND

PMC01

S.GND

L/M CTL

CAP.CTL

DRUM VCC(13.5VA)

DPG/DFG

DRUM CTL

A/C

HEAD

P3D02

HEAD

P3D03

F.GND

FULL ERASE

SP REC

SP PB A

DRUM

MOTOR

P3D01P3D03

EP PB B

SP PB B

P3D01

EP REC

EP PB A

HIFI REC

HIFI PB A

HIFI PB B

P101

13.5VA(DRUM)

PMP01

-27VA

P102

PN301

CABL30

CVBS

DVD-A.MUTE-L

DVD-A.MUTE-R

123

GND

IEC958

INTR/PROG

CABL15

1234678

AMP 'ON'

RADIO 'H'

PMD01

1011121314

Vo1.CLK

Vo1.DATA

VDR RESET

1011121314

VDR CLK

MIC_DET 'L'

DATA(VCR VDR)

VDR ENA

DATA(VDR VCR)

PM601PN302

FLD CLK FLD ENA FLD DATA

KEY P.C.B

P6603

P6602

TIMER P.C.B

PM602

P6M03 P6M01

- 1

Page 72

T/W : JUMPER

865

386

To Hi-Fi (VCR) PMP01

FSDL0365RN

22B

To FAN

ZD104

7.5B

MOTOR

FSDL0365RN

56k(2W)

ZD105

7.5B

22B

R169

R157 10k

To VDR

To DVD-MULTI DRIVE

Page 73

SUP_REEL

TEST

CAPSTAN

A/V

JACK

865

386

TERMINAL

MOTOR

To A/V

To TIMER P6M01

To TIMER P6M03

To REAR JACK

µP

To REAR JACK To REAR JACK

S-UP

To VDR PN303

To Hi-Fi

To REAR JACK To REAR

To TUNER

To Hi-Fi

Page 74

865

386

Hi-Fi

To Hi-Fi

To REAR JACK

VPS

To SYSTEM

NICAM/A2

- 4

To Hi-Fi

Page 75

JACK

865

386

Hi-Fi

To SYSTEM

REG12V

To DRUM MOTOR

Hi-Fi

To SYSTEM

To REAR JACK

To REAR

To Hi-Fi

To A/C HEAD

4.43MHz

VIDEO PROCESS

6.8M

To FE HEAD

- 5

Page 76

5.3VA

0V.0V

865

386

A/V

To SYSTEM

To A/V

To TUNER

To REAR JACK

REG12V

5.0V

REG12V

5.0V

Hi-Fi AUDIO

PROCESS

112

EG12

106

5.0

To REAR JACK

REAR JACK

To TUNER

To S.M.P.S P101

To A/V

5.3VA

5.0V

5.3VA

5.0V

DVD PWR CTL

101 106

101

.3V

106

5.0V

2B 3

To REAR JACK To REAR JACK

JACK

A/V SELECT

To TUNER

To SYSTEM

REG12VREG12V

112

To REAR JACK

REG12V

5.3VA

To REAR JACK

To SYSTEM

REG12V REG12V

112

- 6

Page 77

To SYSTEM

To A/V

To VDR PN304

To TUNER

To Hi-Fi

VIDEO AMP

To Hi-Fi

To SYSTEM

RGB

SW901

COMPO

NEN

JK903

S-VIDEO

OUT

VIDEO OUT AUDIO OUT

SYSTEM

To Hi-Fi

5.3VA

To Hi-Fi

3AC

865

386

- 7

Page 78

KEY

865

386

REW

F.F

DUBBING

To VCR(SYSTEM) PM602

(GREEN)

(RED)

VCR

(RED)

DVD

(GREEN)

- 8

TIMER

VCR(SYSTEM) PM601

Page 79

AV3

865

386

VDR PN302

DV IN

S-VIDEO

2B 3

VIDEO

AUDIO

L IN

AUDIO

R IN

- 9

Page 80

865

386

-10 A/V,SYSTEM Circuit Waveform

IC301 (A/V) IC501 (SYSTEM)

IC301 Pins 8, 9 PB mode 500mvp-p

IC301 Pin 94 REC mode

2.0Vp-p

IC301 Pin 73 PB/REC mode 5Vp-p

IC301 Pins 15, 17, 19,21 Video in 1Vp-p

IC301 Pin 29 PB mode

2.02Vp-p

IC301 Pin 74 PB/REC mode 5Vp-p

IC301 Pin 31 PB/REC mode

4.0Vp-p

IC301 Pin 57 PB mode 400mVp-p

IC301 Pin 77 REC mode 340mVp-p

IC301 Pin 98 REC mode

1.1Vp-p

IC301 Pin 63 PB mode 400mVp-p

IC301 Pin 42 PB mode 300mVp-p

V.HSW (IC501 Pin 23) 1V/10mS REC/PB MODE

DFG/DFG (IC501 PIN 65) 1V/10mS REC/PB MODE

DV.SYNC (IC501 PIN 24) 1V/100uS QUE/REV MODE

CFG (IC501 Pin 67) 1V/10mS

CTL(+) (IC501 Pin 74) 1V/10mS

CTL(-) (IC501 1V/10m

Pin 75)

IC301 Pin 53 PB mode 400mVp-p

IC301 Pin 80 PB mode

3.6Vp-p

- 10

Page 81

865

386

-11 CIR

IT VOLTAGE CHAR

MODE

PIN NO.

EE PLAY

IC301

1 20m 100m

2 20m 100m

3 20m 100m

4 1.95 4.88

5 1.94 1.88

6 2.64 3.12

7 2.8 2.74

8 2.5 1.7

9 2.04 1.3

10 1.80 1.88

11 2.0 1.8

12 1.6 0.72

13 0 0

14 1.26 1.3

15 3.40 3.36

16 0 4.78

17 2.38 2.32

18 1.88 2.84

19 3.02 2.94

20 0 0

21 2.38 2.34

22 4.88 4.82

23 2.64 2.24

24 0 0

25 2.08 2.14

26 3.08 2.66

27 0 0

28 150m 140m

29 3.88 3.18

30 2.08 2.74

31 4.74 4.72

32 2.08 2.12

33 2.42 2.26

34 1.58 1.54

35 3.30 3.36

36 2.50 2.32

37 3.10 3.18

38 2.60 2.28

39 1.40 1.42

40 2.30 2.16

41 1.08 1.58

42 1.82 1.84

43 2.04 2.28

44 0 0

45 2.88 3.04

46 2.0 2.98

47 4.82 4.78

48 120m 2.40

49 3.48 1.94

50 4.78 4.74

51 2.08 1.98

52 4.8 4.70

53 2.60 2.8

54 0 0

MODE

PIN NO.

100 2.48 2.42

EE PLAY

55 1.3 1.48

56 0

57 2.08 2.18

58 1.78 2.14

59 4.6 4.62

60 4.62 4.62

61 3.82 0

62 2.2 2.08

63 2.32 2.32

64 1.62 1.64

65 1.62 2.28

66 2.30 1.68

67 0

68 1.12 1.14

69 2.3 2.38

70 0.82 0.82

71 2.2 2.18

72 100m 2.42

73 4.96 4.98

74 4.96 4.98

75 2.56 2.54

76 2.34 2.18

77 2.68 2.64

78 0 4.72

79 0 0

80 2.16 2.68

81 4.06 20m

82 0 0

83 120m 2.72

84 2.76 4.74

85 2.114 2.42

86 2.04 2.08

87 2.04 2.08

88 0 0

89 2.14 2.08

90 2.14 2.08

91 2.14 2.08

92 4.88 4.89

93 300m 260m

94 2.48 2.40

95 2.48 1.86

96 2.06 1.86

97 0 0

98 2.30 2.46

99 0 20m

IC501

10 0

2 4.52 4.82

3 4.84 4.84

4 4.64 4.58

5 4.56 4.56

6 80m 60m

70 0

8 4.98 4.98

MODE

PIN NO.

9 4.98 5.30

10 4.80 4.80

11 4.82 4.82

12 4.72 4.82

13 4.92 4.92

14 5.02 5.02

15 0 0

16 4.98 4.98

17 5.04 5.04

18 4.98 9.98

19 2.46 2.46

20 3.36 3.36

21 0 0

22 0 0

23 4.96 4.96

24 120m 140m

25 4.94 4.94

26 4.92 4.92

27 20m 20m

28 5.02 5.02

29 4.98 4.98

30 4.84 4.84

31 5.00 5.00

32 0 0

33 4.98 4.94

34 0 5.00

35 5.02 100m

36 3.16 3.12

37 5.70 -

38 0 5.70

39 520m 0

40 4.84 520m

41 4.83 -

43 0 0

44 5.02 5.0

45 0 0

46 3.94 3.94

47 2.88 2.88

48 0 0

49 0.98 2.94

50 1.84 1.94

51 0.98 4.78

52 3.28 3.28

53 2.38 2.38

54 2.52 2.54

55 1.88 1.88

56 0 0

57 0 0

58 120m 120m

59 4.92 4.92

60 4.92 4.92

61 0 0

62 4.82 4.82

63 3.98 3.98

EE PLAY

4.86

MODE

PIN NO.

64 0 0

65 2.36 2.36

66 0 0

67 4.68 9.68

68 0 0

69 2.48 2.48

70 2.48 2.48

71 0 0

72 2.48 4.98

73 4.92 4.92

74 0 0

75 2.52 2.42

76 2.42 2.48

77 80m 80m

78 0 0

79 4.02 4.96

80 4.96 4.96

81 2.8 280m

82 1.0 2.62

83 120m 3.24

84 0 1.96

85 0 0

86 4.98 4.9

87 4.98 4.98

88 5.0 5.0

89 0 0

90 4.88 4.88

91 0 0

92 0 0

93 5.04 5.04

94 4.88 0

95 4.98 4.98

96 0 0

97 0 0

98 4.98 4.98

99 20m 4.98

100 0 0

EE PLAY

IC751

1 4.88 4.88

2 1.46 1.48

3 1.38 1.38

40 0

5 2.26 2.24

62.38 0

70 0

80 0

90 0

10 0 0

11 0 5.0

12 5.0 5.0

13 5.0 0

14 0 0

15 0 0

16 0 0

17 0 0

MODE

PIN NO.

18 0 0

19 4.88 4.88

20 0 0

21 0 0

22 0 0

23 0 0

24 0 0

25 0 0

26 0 0

27 0 0

28 0 0

29 0 0

30 2.96 3.98

31 2.96 3.98

32 0 0

33 4.88 4.88

34 3.64 3.58

35 0 0

36 2.62 2.58

37 0 0

38 0 0

39 0 0

40 2.54 2.54

41 2.54 2.56

42 2.48 2.48

43 2.30 2.34

44 0 0

EE PLAY

IC7V1

10 0

20 0

3 0 142m

4 DA/CL(5.34) DA/CL(5.34)

5 DA/CL(5.34) DA/CL(5.34)

60 0

7 DA/CL(5.34) DA/CL(5.34)

80 0

9 DA/CL(5.34) DA/CL(5.34)

10 DA/CL(5.34) DA/CL(5.34)

11 0

12 DA/CL(2.82) DA/CL(2.82)

13 0 0

14 DA/CL(2.82) DA/CL(62m)

15 2.89 1.41

16 1.53 950M

17 DA/CL(1.14) DA/CL(810m)

18 0 0

19 5.26 5.24

20 5.26 5.24

IC801

1 3.24

2 3.28

3 3.26

4 3.92

5 3.92

3.28

3.26

MODE

PIN NO.

7 3.28 3.74

8 3.28 3.24

9 3.28 3.24

10 3.28 3.24

11 3.28 3.26

12 0 0

13 3.78 4.52

14 0 0

15 0 640m

16 5.82 6.64

17 5.28 6.68

18 0 620m

19 6.28 6.66

20 6.28 6.72

21 4.46 4.42

22 3.28 4.02

23 3.62 3.68

24 3.74 4.12

25 3.74 3.76

26 0.1 640m

27 0 0

28 3.7 3.68

29 3.66 3.64

30 0.7 680m

31 3.72 3.72

32 3.74 4.08

33 3.62 3.68

34 13.4 13.32

35 580m 520m

36 0 520m

37 580m 520m

38 0 0

39 0 20m

40 4.7 4.76

41 0 1.68

42 5.0 5.04m

43 5.0 4.96

44 20m 3.38

EE PLAY

IC901

1 4.76 4.68

2 2.02 2.24

3 4.88 4.88

4 1.64 1.78

5 4.72 4.78

6 1.88 1.88

70 0

8 2.26 2.18

90 0

10 1.64 1.72

11 0 0

12 1.92 2.08

13 4.86 4.82

14 1.92 2.08

15 0 2.31

16 2.26 2.64

MODE

PIN NO.

17 0 0

18 2.28 2.74

19 0 0

20 2.56 2.58

21 2.64 2.68

22 0 0

23 2.56 2.92

24 0 0

25 0 0

26 2.52 2.98

27 20m 0

28 4.72 4.68

EE PLAY

IC201

1 2.51 2.51

2 2.39 2.39

3 3.54 3.53

4 2.57 2.56

5 1.52 1.34

6 0.43 3.68

70 0

80 0

9 3.04 3.03

10 2.52 2.52

11 2 2.05

12 3.22 1.97

13 3.99 3.99

14 2.5 2.49

15 3.11 1.93

16 3.2 3.18

17 27.4m 4.11

18 112.1m 3.35

19 2.27 2.26

20 1.99 2.12

21 2.31 2.37

22 0.78 0.81

23 5.02 5.01

24 5.02 5.0

25 2.44 2.27

26 2.44 2.26

27 2.82 2.85

28 181.5m 187.4m

29 371.6m 212.2m

30 2.08 2.08

E-MODE

NO.

Q501 0 0 0.7

Q503 5.19 5.19 4.57

Q504 Y/C_VIDEO 0 Y/C_VIDEO

Q505 Y/C_VIDEO 0 Y/C_VIDEO

Q506 0 2Fsc 2Fsc

Q514 0 0 4.87

Q515 0 0 4.87

Q301 0 5.04 0

Q302 5.04 0 5.04

Q303 0 0 0

Q305 4.93 4.81 4.79

Q307 5.04 5.04 0

Q310 Y/C_VIDEO 0 Y/C_VIDEO

Q7S1 0 1.47 0

Q7S2 0 0 5.13

Q901 5.1 0 4.5

Q902 0 0 0

Q903 0 0 0

Q904 0 4.5 0

Q905 2.69 0 2

ECB

- 11

Page 82

Circuit Board Diagram

C-1 VCR Circuit Board Diagra

COMPONENT SIDE

LOCATION GUIDE

- 1

Page 83

CONDUCTOR SIDE

LOCATION GUIDE

- 2

Page 84

C-2 S.M.P.S Circuit Board Diagra

CONDUCTOR SIDE

LOCATION GUIDE

Page 85

C-3 JACK Circuit Board Diagram, C-4 TIMER Circuit Board Diagram, C-5 KEY Circuit Board Diagra

Board Location

TIMER

JACK

KEY

-4 TIMER Circuit Board Diagra

C-3 JACK Circuit Board Diagra

C-5 KEY Circuit Board Diagra

COMPONENT SIDE

CONDUCTOR SIDE

Page 86

865

386

Block Diagrams

gram

B-1 S.M.P.S Circuit Block Dia

101

NOISE FILTER

BLOCK (C101,L102, C102)

FUSE (F101)

TH01

C103

SNUBBER

BLOCK (D101,C105 C106,R103)

DRIVE & S/W BLOCK

(IC101, D102, R105,

C108,C112,C120,

ZD101)

T101

6,7,8

PHOTO COUPLER

(IC102

T102

RECTIFIER &

SMOOTING BLOCK

(D128,C133,R130)

RECTIFIER &

SMOOTING BLOCK

(D129,C128,R147)

RECTIFIER &

SMOOTING BLOCK

(D126,C136,L124,C130)

RECTIFIER &

SMOOTING BLOCK

(D130,C137,R146)

RECTIFIER &

SMOOTING BLOCK

(D121,C122,L122,C124)

)

ERROR AMP

(IC103)

FEED-BACK

BLOCK

(R121,R122,

C121,R123, R124,R125,

R126

RECTIFIER &

SMOOTING BLOCK

(D127,C131,L125,C132)

To VCR

(P101)

5.3VA

5.0V

HSR S/W Block

(Q120,ZD153,C135,

R144,R145,D155,C157)

D132

Cap Vcc

REG 12V

33V

12V REG & S/W Block

(Q126,R150,ZD152,

C156,C153)

33V S/W Block

(Q123,R143,R134

)

13.5VA(DRUM)

PWR CTL 'H'

HSR 'H'

DVD PWR CTL

FD(-)

5.0V S/W Block

(Q124,R140,R135,R136

D134,C134

HSR CTL Block

(Q121,Q122,R141)

)

PWR CTL Block

(Q125,R137,R138

)

FD(+)

-27VA

To FAN

(P104)

8.7V

BR BL

(BK)(WH)

Y-CAP C110

SNUBBER

BLOCK

(D103,C115,C116,

R112,R115)

6,7,8

DRIVE & S/W BLOCK

(IC104, D104, R113,

Y-CAP C111

C117,C114,C119,

ZD102)

PHOTO COUPLER

(IC105

)

RECTIFIER &

SMOOTING BLOCK

(D125,C139,L127,C140)

RECTIFIER &

SMOOTING BLOCK

(D124,C129)

RECTIFIER &

SMOOTING BLOCK

(D123,C126)

RECTIFIER &

SMOOTING BLOCK

(D122,C123,L123,C125

FEED-BACK

(R131,R132,

ERROR AMP

(IC106)

C141,R133,

R161,R162)

)

BLOCK

12V REG & S/W Block

(IC157,R156,C155)

5.0V REG & S/W Block (IC151,R151,C151)

1.8V REG & S/W Block (IC160,R159,C152,

R167,R168)

3.3V REG & S/W Block (IC154,R154,C154)

2.5V REG & S/W Block

(IC152,D153,C150

)

To VDR

(P102)

12V

1.8V

2.5V

3.3V

5.0V

To DVD DRIVE

(P103)

12V

5.0V

- 1

Page 87

IC201

)

LA70100M

B-2 VIDEO Circuit Block Dia

1 PB MOD

From System

To System

SP CH2

SP CH1

EP CH2

EP CH1

V.H/SW

V.ENV

PB-AMP SP CH2

PB-AMP

SP CH1

PB-AMP

EP CH2

PB-AMP

EP CH1

IC301

HA118725

AGC

14 18

AMP

AGC DET

4.43MHz

71 69

X-tal

VCO/OSC

2M LPF

TRAP

1.1MHz BELL

BPF

1.107MHz

CTL Trap

ACC

HIFI Trap

FM AGC

P.EQ G.EQ D LIM Y LPF

2.2MHz

X2 X2

BPF

System

DATA

CLOCK

73 6574

Serial Cont

interface

C LPF D

EALY

2fsc

DEMO S LPF

LIM

L- DET

SYNC GATE

Main

Conv2

Main

Conv1

DE-EMPH

4.3MHz BPF

CLAMP

4.3MHz

2.2MHz TRAP

57 45 4642

VCA

CCD LPF

MAIN

DE-EMPH

BPF

4.3MHz A-BELL

4.286MHz

APC/ACC

BDBPF

YNR NC

DET

LPF

MUTE

SYNC SEP

EXT

INT

C.K

Sharpness CONTROL

3640383733 35

C-CCD

CLOCK Drive

Y-CCD

AMP

SQUELCH

CLEAR

SYNC

Video ALC

MIX

FBC

V. OUT

D-V SYNC

From System

V. OUT

D-V SYNC

IC201

LA70100M

4.3MHz

16 12

ATT

-10dB

BPF

AMP

4.3MHz LIM

A-BELL

4.286MHz

C-CCD

CLOCK Drive

Y-CCD

6dB

SQUELCH

CLEAR

SYNC

FBC

Video ALC

VIDEO

AGC

ATT

-10dB

-6dB

17 19 36 40 38 37 33 35 9 8 11

+++

DIVIDER

IC301

HA118725

HPF

ATT

-10dB

SYNC

1/4

GATE

APC/ACC

DET

Y-LPF

LPF CLAMP

1.1MHz

BPF

A-BELL

1.107MHz

SPFACC

Conv2

Conv1

D.E.

YNR

CLAMP

Main

REC

MUTE

VCD

(-4dB)

C-LPF

NL EMPH

SYNC

SEP

45 7365

CCD

LPF

FBC

ALC

2fsc

L-DET

MAIN

EMPH

B.E C.K

MOD

f/0DEV

Adjst

System

CLOCK

Serial Cont

interface

MIX ATT

LPF

System

DATA

74 6971

f0=1.68M

REC

TRAP

HPF

4.43MHz

X-tal

VCO/OSC

LPF

TRAP

VCA

REC-AMP

SP CH2

REC-AMP

SP CH1

REC-AMP

EP CH2

REC-AMP

EP CH1

REC MODE

V.H/SW

From System

SP CH2

SP CH1

EP CH2

EP CH1

MIXED.Y/C

S/W

VIDEO IN

AV3 VIDEO

DVD CVBS

Page 88

865

386

B-3 AUDIO Circuit Block Diagra

1) LINEAR AUDIO PB MOD

IC301

HA118725

R/P HEAD

N.A.IN

PRE AMP

SP ON

VCA

73 74

DATA

CLOCK

226

From SYSTEM

IC801

TDA9605

OUTPUT

SELECTOR

AV2 A. OUT (L)

AV2 A. OUT (R)

VCR A (L)

VCR A (R)

SC901

To PMD02

AV2

3) Hi-Fi AUDIO PB MOD

IC801

FM LIM

TDA9605

Lch BPF

Rch BPF

Hi-Fi PB-A

Hi-Fi PB-B

VCR

AUDIO LIMIT

OUTPUT SELECTOR

19 20

AV2-R

AV2-L

PMD02 PMD02

AUDIO PROCESS

BGA 308P

VDR

MM1443

E2-R

E2-L

PMD01

IC802

EXT-L

EXT-R

A.MUTE

Q912

Q903

Q911

Q702/Q703

MIX

A.MUTE

Q902

TU701

AUDIO

JK901

SC901

SC901 AV1

AUDIO OUT

COAXIAL

JK902 OPTICAL

AV2

2) LINEAR AUDIO REC MOD

TU701

TUNER

S-IF ANA

16432

OUT

AUDIO

OUT

IC751

NICAM/A2

MONO

DVD 'R'

DVD 'L'

AV3 'R'

AV3 'L'

AV2 'R'

AV2 'L'

AV1 'R'

AV1 'L'

INPUT SW

IC801

TDA9605

MIX

OUTPUT SELECT

MONO AUDIO OUT

AV2 A. OUT (L)

AV2 A. OUT (R)

VCR A (L)

VCR A (R)

HA118725

IC301

VCA

To PMD02

REC

AMP

SC901

DET

AV2

R/P HEAD

4) Hi-Fi AUDIO REC MOD

IC751

NICAM/A2

MONO IN

FRONT

AV3 (L)

FRONT AV3 (R)

TU701

TUNER

S-IF ANA OUT

AUDIO

OUT

SC901

AV1

AV2

151643

DVD

AUDIO(L)

DVD

AUDIO(R)

VDR

IC801

TDA9605

INPUT SW

AUDIO LIMIT

REC

VCOPNR

LPF

MIX

REC

VCOPNR

LPF

Hi-Fi

REC-A

Hi-Fi

REC-B

VCR

Page 89

865

386

B-4 SYSTEM Circuit Block Diagra

To/From

R550

LD501 DECK IR LED

R553

R555

DECK MECHANISM

MODE S/W

T-UP END

ES501

R557

RS501

T-UP REEL

5.3VA

MS501

To/FROM VDR

SUP END

R556

RS502

SUP REEL

CST.SW/REC TAB

R554

CS501

5.3VA

GND

MODE S1 MODE S2 MODE S3 MODE S4

ES502

R564

R558

R548

X502

32.768KHz

R505

R507

Q514

Q515

X501

14MHz

OSC

C534

R583

R584

C535

C552

I-Limit

MODE S1

MODE S2

MODE S3

MODE S4

VDR ENA

DATA(VDR VCR)

DATA(VCR VDR)

VDR CLK

X in

X out

Xc in

Xc out

TOP SENSOR

END SENSOR

T-UP Reel

SUP Reel

CST IN

R/C

RC601

(TIMER)

CAP. PWM

DRUM PWM

CTL +

CTL -

DPG

IC501

MN101D10X

21 19

CFG

CAP. REV 'H'

LD CTL

Vcc (OSD)

Vcc (A/D)

5.0V

V. ENV

V.H.SW

D.V.Sync

A. MUTE 'H'

POWER FAIL

Vcc

C500 BACK UP

REC 'H'

FLD DATA

FLD ENA

FLD CLK

A. ENV

A. H.SW

REC 'H'

IIC CLK

IIC DATA

AFT

IIC CLK

IIC DATA

IIC CLK

IIC DATA

RESET

(MAIN)

+ +

26 58

18 17

C501

To/From VIDEO

DIG601

DISPLAY

IC601

TIMER

To/From AUDIO(Hi-Fi)

To/From TUNER

IC503 EEPROM

SCL SDA

R542

R529

Q503

Q501

R583

5.3VA

IC504

RESET

IC505

RESET

GND

C505

L504

- 4

Page 90

-5 VIDEO I/O Circuit Block Dia

B - 5

AV3

VIDEO

S-VIDEO

JK764

JK761

JK765

PN7605 PMD02

AV3 VIDEO

11,12

14,15

TPA

TPB

MIXED Y/C

VCR VIDEO

DVD CVBS

Y (SUPER)

C (SUPER)

IC802

MM1443

Q8C1

S/W VIDEO

IC802

MM1443

EXT-V VOUT2

VOUT3

MIX

IC301

Q905

TU701

VIDEO OUT

SC901

VIDEO

JK903

S-VIDEO

OUT

VIDEO OUT

VIDEO IN

VIDEO OUT

AV2

AV1

VCRVDRFRONT JACK

10 20

12 18

14 16

IC901

MM1623FX

SW901

RGB

COMP

JK901

Y (COMP)

Pb (COMP) Pr (COMP)

Page 91

Hitachi, Ltd. Tokyo, Japan

International Sales Division

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Hitachi DVRV-8500-E Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Safety Precaution for Repair

1-1 Cautions

1-2 Electrostatic Protection Measures

1-3 Cautions When Handling DVD Drive

1-4 Lead-Free Solder

1-5 Notes When Using Service Manual

General Description

2-1 Overview

2-1-1 Service method

2-1-2 Disc information

2-2 Features

2-3 Specifications

2-4 Major Differences from Previous Model

2-5 Function Differences from Previous Model

2-6 Names of Parts

2-7 List of Abbreviations and Terms for DVD Recorder

Details of Servicing and Troubleshooting

3-1 Details of Servicing

3-1-1 Removing Disc from Faulty Recorder

3-1-2 Removing Video Cassette from Faulty Recorder

3-1-3 Firmware

3-1-4 Setting to defaults at the factory

3-2 Troubleshooting

3-2-1 Troubleshooting electronic system

3-2-2 Troubleshooting mechanical block

Disassembly and Reassembly

4-1 Order of Disassembly

4-2 Cabinet Disassembly

(1) Top Cover

(2) Front Panel

(3) FAN Motor

(4) SMPS P.C.B

(5) Deck mechanism

(6) TIMER P.C.B

(7) VCR P.C.B

(8) DVD multi-drive

(9) VDR, JACK and KEY P.C.Bs

4-3 Deck Mechanism Parts Locations

4-4 Deck Mechanism Disassembly

4-5 Checking Mode after Reassembling Deck Mechanism

Adjustment / Maintenance

5-1 Set-up for Adjustment

5-2 VCR Electrical Adjustment

5-2-1 Head switching adjustment

5-3 Deck Mechanism Tape Transport System Adjustment

5-3-1 Guide roller height adjustment

5-3-2 A/C head adjustment

5-3-3 X-value adjustment

5-3-4 Adjustments after replacing drum assembly

5-3-5 Check after adjustment

Method of setting the mechanism to loading status without inserting tape

5-3-7 Reel torques

5-4 Maintenance

5-4-1 Maintenance and inspection

5-4-2 Lubricating oil and greasing

Exploded View and Parts List

6-1 Exploded Views

6-1-1 Cabinet Section

6-1-3 Deck Mechanism Section - Top view

6-1-4 Deck Mechanism Section - Bottom view

COMPONENT SIDE

CONDUCTOR SIDE