Hitachi DVPF-3-A Service manual

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Page 1

SERVICE MANUAL

DVD OUTPUT VCR

TIMER REC

AV 3 (mono)

VIDEO IN

AUDIO IN R

TK No. 9307E

DV-PF3A(S)

PROGRAM

PAL

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT

DVD PLAYER & VIDEO CASSETTE RECORDER

June 2003

Digital Media Division, Tokai

Page 2

1 CAUTIONS FOR SAFETY IN PERFORMING

REPAIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

1-1 LASER BEAM SAFETY PRECAUTIONS . . . . . . . . 1-1

1-2 IMPORTANT SAFETY PRECAUTIONS . . . . . . . . . 1-2

1-2-1 Product Safety Notice . . . . . . . . . . . . . . . . . . . . . 1-2

1-2-2 Precautions during Servicing. . . . . . . . . . . . . . . . 1-2

1-2-3 Safety Check after Servicing. . . . . . . . . . . . . . . . 1-3

1-3 STANDARD NOTES FOR SERVICING. . . . . . . . . . 1-4

1-3-1 Circuit Board Indications . . . . . . . . . . . . . . . . . . . 1-4

1-3-2 Instructions for Connectors . . . . . . . . . . . . . . . . . 1-4

1-3-3 How to Remove/Install Flat Pack-IC . . . . . . . . . . 1-4

1-3-4 Instructions for Handling Semi-conductors . . . . . 1-6

1-4 NOTES WHEN USING SERVICE MANUAL. . . . . . 1-7

2 GENERAL INFORMATION. . . . . . . . . . . . . . . . .2-1

2-1 SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

2-2 COMPARISON OF MODELS . . . . . . . . . . . . . . . . . 2-2

2-2-1 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

2-2-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

2-3 OPERATING CONTROLS AND FUNCTIONS . . . . 2-4

3 MAINTENANCE AND INSPECTION. . . . . . . . . .3-1

3-1 TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . 3-1

3-1-1 Power Supply Section. . . . . . . . . . . . . . . . . . . . . 3-1

3-1-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4

3-1-3 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-8

3-2 FIRMWARE RENEWAL MODE. . . . . . . . . . . . . . . 3-15

3-2-1 How to Update the Firmware Version . . . . . . . . 3-15

3-2-2 How to Verify the Firmware Version . . . . . . . . . 3-15

3-3 STANDARD MAINTENANCE . . . . . . . . . . . . . . . . 3-16

3-3-1 Service Schedule of Components. . . . . . . . . . . 3-16

3-3-2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

4 DISASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . .4-1

4-1 CABINET DISASSEMBLY INSTRUCTIONS. . . . . . 4-1

4-1-1 Disassembly Flowchart . . . . . . . . . . . . . . . . . . . . 4-1

4-1-2 Disassembly Method. . . . . . . . . . . . . . . . . . . . . . 4-1

4-2 DISASSEMBLY/ASSEMBLY PROCEDURES

OF DECK MECHANISM . . . . . . . . . . . . . . . . . . . . . 4-6

4-3 ALIGNMENT PROCEDURES OF MECHANISM. . 4-13

5 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

5-1 PREPARATION FOR SERVICING . . . . . . . . . . . . . 5-1

5-1-1 How to Enter the Service Mode. . . . . . . . . . . . . . 5-1

5-2 FIXTURE AND TAPE FOR ADJUSTMENT. . . . . . . 5-2

5-2-1 How to Use The Fixtures And Tape. . . . . . . . . . . 5-2

5-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS . . . 5-3

5-3-1 Test Equipment Required . . . . . . . . . . . . . . . . . . 5-3

5-3-2 Head Switching Position Adjustment. . . . . . . . . . 5-3

5-4 MECHANICAL ALIGNMENT PROCEDURES. . . . . 5-4

5-4-1 Service Information . . . . . . . . . . . . . . . . . . . . . . . 5-4

5-4-2 Tape Interchangeability Alignment . . . . . . . . . . . 5-5

1-A. Preliminary/Final Checking and

Alignment of Tape Path. . . . . . . . . . . . . . . . . . . . 5-6

1-B. X Value Alignment. . . . . . . . . . . . . . . . . . . . . . . . 5-6

1-C. Checking/Adjustment of Envelope Waveform. . . 5-7 1-D. Azimuth Alignment of

Audio/Control/Erase Head. . . . . . . . . . . . . . . . . . 5-7

6 EXPLODED VIEWS AND PARTS LIST . . . . . . 6-1

6-1 EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . .6-1

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

6-1-2 Deck Mechanism View 1 Section . . . . . . . . . . . . .6-2

6-1-3 Deck Mechanism View 2 Section . . . . . . . . . . . . .6-2

6-1-4 Deck Mechanism View 3 Section . . . . . . . . . . . . .6-3

6-2 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . .6-4

6-2-1 Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . .6-4

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

SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS

1 WIRING DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-1 VCR Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1-2 DVD Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 3

2-1 Main 1/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 3

2-2 Main 2/9 & Sensor Schematic Diagrams. . . . . . . . . . 4

2-3 Main 3/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 5

2-4 Main 4/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 6

2-5 Main 5/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 7

2-6 Main 6/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 8

2-7 Main 7/9 Schematic Diagram . . . . . . . . . . . . . . . . . . 9

2-8 Main 8/9 & DVD OPEN/CLOSE Schematic

Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2-9 Main 9/9 Schematic Diagram . . . . . . . . . . . . . . . . . 11

2-10Power Supply & Junction Schematic Diagrams . . . 12

2-11 Jack Schematic Diagram. . . . . . . . . . . . . . . . . . . . . 13

2-12Function Schematic Diagram . . . . . . . . . . . . . . . . . 14

2-13AFV Schematic Diagram. . . . . . . . . . . . . . . . . . . . . 15

2-14DVD Main 1/3 Schematic Diagram . . . . . . . . . . . . . 16

2-15DVD Main 2/3 Schematic Diagram . . . . . . . . . . . . . 17

2-16DVD Main 3/3 Schematic Diagram . . . . . . . . . . . . . 19

3 WAVEFORMS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4 CIRCUIT BOARD DIAGRAMS . . . . . . . . . . . . . . . . . . . 21

4-1 Main CBA Top View & Sensor CBA Top View. . . . . 21

4-2 Main CBA Bottom View. . . . . . . . . . . . . . . . . . . . . . 22

4-3 Function CBA Top/Bottom View &

DVD OPEN/CLOSE CBA Top/Bottom View . . . . . . 23

4-4 Power Supply CBA Top/Bottom View &

Junction CBA Top/Bottom View . . . . . . . . . . . . . . . . .24

4-5 Jack CBA Top/Bottom View &

AFV CBA Top/Bottom View . . . . . . . . . . . . . . . . . . . .2 5

5 BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5-1 Servo/System Control Block Diagram. . . . . . . . . . . 26

5-2 Video Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . 27

5-3 Audio Block Diagram. . . . . . . . . . . . . . . . . . . . . . . . 28

5-4 Hi-Fi Audio Block Diagram . . . . . . . . . . . . . . . . . . . 29

5-5 Power Supply Block Diagram . . . . . . . . . . . . . . . . . 30

5-6 DVD System Control/Servo Block Diagram . . . . . . 31

5-7 Digital Signal Process Block Diagram. . . . . . . . . . . 32

5-8 DVD Video / Audio Block Diagram . . . . . . . . . . . . . 33

6 SYSTEM CONTROL TIMING CHARTS . . . . . . . . . . . . 34

7 IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . 39

8 LEAD IDENTIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . 42

Page 3

CAUTIONS FOR SAFETY IN PERFORMING REPAIR

1-1 LASER BEAM SAFETY PRECAUTIONS

This DVD player uses a pickup that emits a laser beam.

Do not look directly at the laser beam coming from the pickup or allow it to stri ke against your skin.

The laser beam is emitted from the location shown in the figure. W hen checki ng the laser diode , be sure to keep your eyes at leas t 30cm away f rom the pi ckup lens wh en the diod e is turned on. Do not l ook directl y at the las er beam.

Caution: Use of controls and a djustments, or doing proce dures other than those s pecified herein, may r esult in hazardous radiation exposure.

rive Mecha Assembly

Laser Beam Radiation

Laser Pickup

Turntable

1-1

Page 4

1-2 IMPORTANT SAFETY PRECAUTIONS

1-2-1 Product Safety Notice

Some electrical and mechanical parts have special safety-related charac teristics which are often not evident from visual inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc. Parts that have special s afe ty c har ac te rist ic s ar e i den tified by a ! on schematics and in parts lists. Use of a substitute replacement that does not have the same safety characteristics as the recommended replacement part might create shock, fi re, and/or other hazards. The Product’s Safety is under review continuously and new instructions are issued whenever appropriate. Prior to shipment from the factory, our products are carefully inspected to confirm with the recognized prod uct safety and electrical codes of the countries in whic h th ey are to be sold. However, in order to maintain such comp lianc e, it is equ ally impor tant to implement the following precautions when a set is being serviced.

1-2-2 Precautions during Servicing

A. Parts identified by the ! symbol are critical for

safety. Replace only with part number specified.

B. In addition to safety, other parts and assemblies

are specified for conformance with regulations applying to spur ious rad iation. T hese m ust also be replaced only with specified re pla ce men ts. Examples: RF converters, RF c ables, noise blocking capacitors, and noise blocking filters, etc.

C. Use specified internal wiring. Note especially:

1)Wires covered with PVC tubing

2)Double insulated wires

3)High voltage leads

D. Use specified insulating materials for hazardous

live parts. Note especially:

1)Insulation tape

2)PVC tubing

3)Spacers

4)Insulators for transistors

E. When replacing AC primary side components

(transformers, power cord, etc.), wrap ends of wires securely about the terminals before soldering.

F. O bs erv e t hat the wi r es do n ot co ntact h eat pr od uc -

ing parts (heatsinks, oxide metal fil m re sisto rs, fus ible resistors, etc.).

G. Check that replaced wires do not contact sharp

edges or pointed parts.

H. When a power cord has been r eplaced, ch eck that

5 - 6 kg of force in any direction will not loosen it.

I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder

droplets, etc.) do not remain inside the set.

K. Crimp type wire connector

The power tr ansformer uses crimp type connectors which connect the power cord and the primary side of the transformer. When replacing the transformer, follow these steps carefully and precisely to prevent shock hazards. Replacement procedure

1)Remove the old connector by cutting the wires at a point close to the connector.

Important: Do not re-use a connector. (Discard it.)

2)Strip about 15 mm of the insulation from the ends of the wires. If the wires are stranded, twist the strands to avoid frayed conductors.

3)Align the lengths of the wires to be connected. Insert the wires fully into the connector.

4)Use a crimping tool to crimp the metal sleeve at its center. Be sure to crimp fully to th e complete closure of the tool.

L. When connecting or disconnecting the internal

connectors, first, discon nect the AC plug from the AC outlet.

1-2

Page 5

1-2-3 Safety Check after Ser vicing

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

1. Clearance Distance

When replacing primary circuit components, confirm specified cleara nce distanc e (d) and (d’) between sol dered terminals, and between terminals and surrounding metallic parts. (See Fig. 1-2-1)

T able 1-2-1 : Ratings for selected area

AC Line Voltage Clearance Distance (d) (d’)

Chassis or Secondary Conducto

Primary Circuit Terminals

dd'

220 V to 240 V

Note: This table is unofficial and for reference only.

Be sure to confirm the precise values.

≥ 3 mm(d)

≥ 6 mm(d’)

2. Leakage Current Test

Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and output terminals, microphone jacks, earphone jacks, etc.) is lower than or equal to the specified value in the table below.

Measuring Method (Power ON) :

Insert load Z between B (earth ground, power cord plug prongs) and exposed accessible parts. Use an AC voltmeter to measure acr oss the ter minals of l oad Z. See Fig. 1-2-2 and the following table.

Table 1-2-2: Leakag e current ratings for selected a reas

AC Line Voltage Load Z Leakage Current (i)

220 V to 240 V

2kΩ RES.

Connected in parallel

50kΩ RES.

Connected in parallel

i≤0.7mA AC Peak

i≤2mA DC

i≤0.7mA AC Peak

i≤2mA DC

Exposed Accessible Part

One side of

Power Cord Plug Prongs

One side of power cord plug

Antenna terminals

A/V Input, Output

Fig. 1-2-1

AC Voltmeter (High Impedanc

Fig. 1-2-2

prongs (B) to:

RF or

Note: This table is unofficial and for reference only. Be sure to confirm the precise values.

1-3

Page 6

1-3 STANDARD NOTES FOR SERVICING

1-3-1 Circuit Board Indications

1. The output pin of the 3 pin Regulator ICs is indicated as shown.

Top View

Input

2. For other ICs, pin 1 and every fifth pin are indicated as shown.

in 1

3. The 1st pin of every male connector is indicated as shown.

in 1

Bottom View

1-3-3 How to Remove / Install Flat

Pack-IC

1. Removal

With Hot-Air Flat Pack-IC Desoldering Machine:.

(1) Prepare the hot-air flat pack-IC desoldering

machine, then apply hot air to the Flat Pack-IC (about 5 to 6 seconds). (Fig. 1-3-1)

Fig. 1-3-1

(2) Remove the flat pack-IC with tweezers while apply-

ing the hot air.

(3) Bottom of the flat pack-IC is fixed wit h glue to the

CBA; when removing entire fl at pack-IC, fir st apply soldering iron to center of the fla t pack-IC and hea t up. Then remove (glue will be melted). (Fig. 1-3-6)

(4) Release the flat pack-IC from the CBA using twe e-

zers. (Fig. 1-3-6)

1-3-2 Instructions for Connectors

1. When you connec t o r dis con nect the F FC (Flex ib le Foil Connector) cable, be sure to first disconnect the AC cord.

2. FFC (Flexible Foil Connector) cable should be inserted parallel into the connector, not at an angle.

FFC Cable

Connector

CBA

* Be careful to avoid a short circuit.

Caution:

1. Do not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put maskin g tape a r ound the flat pack-IC to protect other parts from damage. (Fig. 1-3-2)

2. The flat pack-IC on th e CB A i s affixed with glue, so be careful not to break or damage the foil of each pin or the solder lands under the IC when removing it.

Hot-air Flat Pack-IC Desoldering

CBA

Masking Tape

Tweezers

Machine

Flat Pack-IC

Fig. 1-3-2

1-4

Page 7

With Soldering Iron:

F S

(1)Using desoldering braid, remove the solder from all

pins of the flat pack-IC. Wh en you use solder flux which is applied to all pins of the f lat pack-IC, you can remove it easily. (Fig. 1-3-3)

lat Pack-IC

Desoldering Braid

(4) Bottom of the flat pack-IC is fixed wit h glue to the

CBA; when removing entire fl at pack-IC, fir st apply soldering iron to center of the fla t pack-IC and hea t up. Then remove (glue will be melted). (Fig. 1-3-6)

(5) Release the flat pack-IC from the CBA using twe e-

zers. (Fig. 1-3-6)

Note:

When using a sold ering iron, care must be taken to ensure that the flat pack-IC is not being hel d by glue. When the flat pack-IC is removed from the CBA, handle it ge ntl y bec au se it may be damaged if force is applied.

Soldering Iron

Hot Air Blower

Fig. 1-3-3

(2) Lift each lead of the flat pack-IC upward one by

one, using a sharp pin or wire to which sold er will not adhere (iron wir e). When heati ng the pins, us e a fine tip soldering iron or a hot air desoldering machine. (Fig. 1-3-4)

Iron Wire

Soldering Iron

To Solid Mounting Point

Sha

Fig. 1-3-5

ine Tip oldering Iron

CBA

Fine Tip Soldering Iro

Fig. 1-3-4

(3)Bottom of the flat pack-IC is fixed with g lue to the

CBA; when removing enti re flat pack-IC, fi rst apply soldering iron to c en ter o f th e f lat pack-I C an d h eat up. Then remove (glue will be melted). (Fig. 1-3-6)

(4)Release the flat pack-IC from the CBA usin g twee-

zers. (Fig. 1-3-6)

Tweezers

Flat Pack-IC

With Iron Wire:

(1)Using desoldering braid, remove the solder from all

Fig. 1-3-6

pins of the flat pack-IC. Wh en you use solder flux which is applied to all pins of the f lat pack-IC, you can remove it easily. (Fig. 1-3-3)

(2) Affix the wire to a workbench or solid mounting

point, as shown in Fig. 1-3-5.

(3) While heating the pins using a fine tip soldering

iron or hot air blower, pull up the wire as the solde r melts so as to lift the IC leads from the CBA contact pads as shown in Fig. 1-3-5.

1-5

Page 8

2. Installation

P i

(1) Using desoldering braid, remove the solder from

the foil of each pin of the flat pack-IC on the CBA so you can install a replac ement flat pack-IC more easily.

(2) The “I” mark on the flat pack-IC indicates pin 1.

(See Fig. 1-3-7.) Be sure this m ark matches the 1 on the PCB when position ing for installation. Then presolder the four corners of the flat pack-IC. (S ee Fig. 1-3-8.)

(3)Solder all pins of the flat pack-IC. Be sure that none

of the pins have solder bridges.

Example :

in 1 of the Flat Pack-IC

s indicated by a " " mark.

Fig. 1-3-7

1-3-4 Instructions for Handling

Semi-conductors

Electrostatic breakdown of the semi-conductors may occur due to a po tential difference ca used by electr ostatic charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a gr oundin g band (1MΩ) that is properly grounded to re move any static electricity that may be charged on the body.

2. Ground for Workbench

(1) Be sure to place a conductive sheet or copper plate

with proper groundin g (1MΩ) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will no t escape through the body grounding band, be careful to avoid contacting semi-conductors with your clothing.

< Incorrect >

CBA

Presolder

Flat Pack-IC

Fig. 1-3-8

CBA

< Correct >

Grounding Ban

1MΩ

CBA

1MΩ

Conductive Sheet or Copper Plate

1-6

Page 9

1-4 NOTES WHEN USING SERVICE MANUAL

(

[

The following shows the contents to be noted when using service manual:

Standard Notes WARNING

Many electrical and mechanical parts in this chassis have special characteristics. These characteristics often pass unnoticed and the protection afforded by them cannot nece ssar ily b e ob tai ned by us ing repl ac ement components rated for higher voltage, wattage, etc. Replacement parts that have th ese spe cial safety characteristics are identified in this manual and its supplements; electrical comp onents having such features are identified by the mark " ! " in the schematic diagram and the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts that do not have the same s afety character istics as specified in the parts list may create shock, fire, or other hazards.

Capacitor Temperature Markings

Mark

(B)

Capacity

change rate

±10%

(F) +30 - 80% 20°C -25~+85°C

(SR)

±15%

(Z) +30 - 80% 20°C -10~+70°C

Standard

Temperature

temperature

20°C -25~+85°C

range

Notes:

1. Do not use th e part numb er shown o n these drawings for ordering. The correct part number is shown in the parts list, and may be slightly different or amended since these drawings were prepared.

2. All voltages are DC voltages unless otherwise specified.

Values in schematic diagrams

The values, dielec tric strength ( power capacitance ) and tolerances of the resistors ( excluding variable resistors ) and capacitors are indicated in the schematic diagrams using abbreviations.

Resistors ]

Item Indication

No indication...........................

Value

Power

capacitance

K............................................k

M..........................................M

No indication............1/4W,1/6W

All capacitances other than the above are indicated in schematic diagrams.

Capacitors and transistor s are represented by the following symbols.

CBA Symbols

(Top View) (Bottom View)

Electrolytic Capacitor

Capacitors ]

Item Indication

Value

No indication...........................

P..............................................pF

No indication...........................50V

Dielectric

strength

All dielectric strengths other than 50V are indicated in schematic

diagrams.

Bottom View)

Transistor or Digital Transistor

E C B

(Top View)

E C B

(Top View)

E C B

(Top View)

NPN Transistor

NPN Digital Transistor

Schematic Diagram Symbols

Digital Transistor

E C B

(Top View)

E C B

PNP Transistor

PNP Digita Transistor

Coils ]

Item Indication

Value

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

m.............................................mH

1-7

Page 10

LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING

T b

PAGES:

1. CAUTION:

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.

2. CAUTION:

Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supp ly. Otherwi se it may cause some compon ents in the power supply circuit to fail.

3. Note:

(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts

list, and may be sl ightly different or amended since the drawings were prepared.

(2) To maintain original function and reliability of repaired units, use only original replacement parts which are

listed with their part numbers in the parts list section of the service manual.

4. Wire Connectors

(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect). (2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).

5. Voltage indications for PLAY and REC modes on the schematics are as shown below:

< DVD Section >

5.0

he same voltage for oth PLAY & STOP modes

5.0 (2.5)

PLAY mode STOP mode

231

Indicates that the voltage is not consistent here.

The same voltage for both PLAY, REC & DVD modes

< VCR Section >

231

5.0

5.0 (2.5) < >

Indicates that the voltage is not consistent here.

PLAY mode REC mode DVD mode

Unit: Vol

6. How to read converged lines

-D3 Distinction Area

Line Number

(1 to 3 digits)

Examples:

1. "1-D3" means that line number "1" goes to area "D3

2. "1-B1" means that line number "1" goes to area "B1

7. Test Point Information

: Indicates a test point with a jumper wire across a hole in the PCB. : Used to indicate a test point with a component lead on foil side. : Used to indicate a test point with no test pin. : Used to indicate a test point with a test pin.

AREA D3

1-B1

AREA B1

1-D3

ABCD

1-8

Page 11

GENERAL INFORMATION2

2-1 SPECIFICATIONS

ITEM DESCRIPTION

TV system PAL BG/DK, SECAM BG/DK Video head Rotating 4 heads

Recording system Audio track

Tape VHS-type videocassette Tape speed {SP}: 23.39 mm/s, {LP}: 11.70 mm/s Maximum record and

playback time

Receiving channel

Video section

Reception system Up-heterodyne RF converter RF CONVERTER Converter output UHF 22 - 69 ch (K: 36 ch) Timer display 24-hour system Video output impedance 75 Ω Video output level 1.0 V p-p Audio output level -6 dB 1 kΩ unbalance (high impedance) Video input level 0.5- 2.0 V p-p Audio input level -10 dBV Video S/N ratio 40 dB or more Audio S/N ratio 36 dB or more

Hi-Fi audio Disc used DVD video disc, Music CD disc

Audio frequency characteristic

DVD section

Signal/Noise (S/N) ratio CD: 70 dB (JEITA) Dynamic range DVD (linear audio): 70 dB, CD: 70 dB (JEITA) Total distortion ratio DVD: 0.1%, CD: 0.1% Antenna input DIN (input) terminal Antenna output DI N (output) terminal Video input SCART JACK (AV 1, 2) FRONT PIN JACK Video output SCART JACK (AV 1, 2)

Terminal

Others

Audio input SCART JACK (AV 1, 2) FRONT PIN JACK Audio output SCART JACK (AV 1, 2) PIN JACK (REAR) S Video output MINI DIN 4PIN JACK (75 Ω) Optical digital audio output Optical connector Coaxial digital audio output PIN JACK Power supply AC 220-240 V - +/-10%, 50 Hz+/-0.5% Power consumption 30 W (Standby: 9.0 W) Retention at power failure 30 s Temperat ure range for operation 5 °C - 40 °C Dimensions 435 mm x 99 mm x 218 mm Weight 3.8 kg

Rotating 2 head helical scan brightness signal FM method VHS standard for methods to directly record color signal low frequency conversions

Hi-Fi audio track: 2 channel Normal audio track: 1 channel

{SP}: 4 hours (with E-240 used) {LP}: 8 hours (with E-240 used)

CH Indication TV Channel 02-12 E2-E12 21-69 E21-E69 74-78 X,Y,Z,Z+1,Z+2 80-99, 100 S1-S20. GAP 121-141 S21-S41 142-153 R1-R12

Frequency characteristic: 20-20,000 Hz Dynamic range: 70 dB or more

DVD (linear audio) 20 Hz - 22 kHz (48 kHz sampling frequency) 20 Hz - 44 kHz (96 kHz sampling frequency) Music CD 20 Hz - 20 kHz (JEITA)

2-1

Page 12

2-2 COMPARISON OF MODELS

2-2-1 VCR Section

. ←: Same as on left

ITEM DV-PF3A(S) VT-FX695EGK

Video Format VHS ← Y/C Separation Comb Filter ← YNR (Luminance Noise Reduction)

IDE

Circuit Picture Control O ← Video/Audio Input (Rear) O 1 Video/Audio Input (Front) 1 (IN3) O

UTPU

Video/Audio Output (Rear) 1 (with adopter) O

INPUT

Power Supply 220 - 240V 110 - 240V OSD languages (VCR)

Stereo CM Skip Feature --- ← Auto Clock Feature --- ← Number of Timer Programming 8 Program/year 7 Program/year

THE

Self Diagnosis Function O (4 Modes) --Back-up Time 30 s 60 s NTSC on PAL TV O ← Surge Absorber --- ← Auto Power Off Feature O ← Local Broadcast Setting O ← Multi Search Feature O (Index, Time Search, Quick Find) O (Index, Time Search)

Search Speed FF/REW Time (E-180 Tape)

Head Composition

ECHANIS

Head Material

5(English, Russian, Polish,

Hungarian, Czech)

SP: X5/X7 (NTSC X5)

FF: approx. 100 s, REW: approx. 100 s

Hi-Fi Audio: 2[28/28 µm]

Hi-Fi Audio: Ferrite

O ←

LP: X5/X11

DA4+Hi-Fi SP: 2[49/49 µm] LP: 2[25/25 µm]

SP: Ferrite

LP: Ferrite

1(English)

←

2-2

Page 13

2-2-2 DVD Section

O A

. ←: Same as on left

ITEM DV-PF3A(S) DV-P388A(S)

Drive Speed 1x ← Laser 2 ← DVD/VCD/SVCD/CD-DA O / O / --- / O ← CD-R/CD-RW/DVD-R (Video Format) O / O / O ← DVD-RAM (VR Format) --- ← MP3 O ←

ENERA

OSD languages (DVD) 2 (English, Russian) 2 (English, Chinese) Jog Shuttle on Front --- ← Headphone Jack / Volume ---/--- ← PAL Disc NTSC Out --- ← Video Out Mode PAL/PAL60 O / O ← S-Video / Component / Composite O / --- / O O / O / O Video D/A Converter 10bit ←

IDE

Black Level Select --- O Picture Control --- ← Progressive Out --- ← Audio D/A Converter 192kHz / 24bit ← Digital Audio Out Optical / Coaxial O / O ← Dolby Digital 5.1 ch Decode --- ← DTS Digital Out O ←

UDI

Virtual Surround O ← Dynamic Range Compression (Dolby

Digital) DVD Audio --- ←

Search Speed Slow Speed 1/16, 1/8, 1/2 (FORWARD/REWIND) 1/16, 1/8, 1/2 (FORWARD only)

IP Search (Smooth 2x Play) O ← 2x Play with Audio --- ←

RICK PLA

Step Forward / Reverse O / --- ← Still Picture Select (Frame/Field) Auto Only ← Disc Navigation O --DVD Zoom x2 / x4 O / O ← Program and Random Play of DVD --- ← A-B Repeat O ← Repeat O ← Resume Play O

EATURE

Front Panel Display Dimmer --- O Screen Saver O ← Auto Power Off O ←

2 to 100 (FORWARD/REWIND)

(DVD: 2, 8, 50, 100/CD: 16)

(Resume is not effected after power off)

O ←

2 to 60 (FORWARD/REWIND)

(DVD: 2, 8, 30, 60/CD: 16)

2-3

Page 14

re ).

ly ).

y h

ss eD

n D n-

mode when playing CDs or MP3. Sets virtual surround.

2-3 OPERATING CONTROLS AND FUNCTIONS

FRONT PANEL

1 342

REMOTE CONTROL

22 23 24 25

26 27

28 29 30 31

32 33 34 35

36 37

38 39

A-B REPEAT

REPEAT

MODE

ZOOM

ANGLE

RETURN

DVD

SLOW SPEED

SKIP PROG

INDEX SEARCH TIME SEARCH

SEARCH MODE/

QUICK-FINDSURROUND

CLEAR/C.RESET

AUDIO

SUBTITLE

TIMER

ENTER

DISC

NAVIGATION

SYSTEM

OPEN/CLOSE

EJECT

+10

DISPLAY

TOP MENU

SETUP

VCR

REC

1. Disc loading tray

2. OPEN/CLOSE (A) Button(DVD)

Press to insert discs into or remove them from the tray.

3. CASSETTE COMPARTMENT

4. POWER Light

Lights up when the power is on.

5. POWER/STANDBY (

/I) Button

Press to turn the power on and off. (As to the indication of the Operate switch, “ I ” indicates ON and “y” indicates electrical power STANDBY.)

6. PROGRAM (o/p) Buttons

In VCR mode, press to change TV programmes on the VCR; press to adjust the tracking during normal or slow motion playback; press to remove vertical jitter in a Still picture.

7. PLAY ( B) Button(VCR)

Press to begin playback.

8. STOP/EJECT ( C /A ) Button (VCR)

EJECT

Press to remove the tape from the VCR.

STOP

Press to stop the tape motion.

9. AUDIO In Jacks

Connect audio cables coming from the audio out jacks of a camcorder, another VCR, or an audio source here.

0. VIDEO In Jack

Connect a video cable coming from the video out jack of a camcorder, another VCR, or a video source (laser disc player, camcorder, etc.) here.

54 53 52

50 49

48 47 46 45

44 43

42 41

DVD OUTPUT VCR

TIMER REC

18 16

11. F.FWD ( g) Button (VCR)

Press to rapidly advance the tape, or view the pictu rapidly in forward during playback. (Forward Search

12. REW (h ) Button (VCR)

Press to rewind the tape, or to view the picture rapid in reverse during the playback mode (Rewind Search

13. REC ( I ) Button (VCR)

Press once to start a recording. Press repeatedly to sta a One Touch Recording.

14. REC Light

Lights up during recording.

15. TIMER Light

This light glows when the DVD/VCR is in standb mode for a timer recording or during a One Touc Recording. It flashes if TIMER is pressed for a tim recording, but there is no tape in the DVD/VCR. flashes when all timer recordings or One Touc Recording are finished.

16 VCR OUTPUT Light (Green)

This light appears when the VCR output mode selected. You can only watch tapes when the gree VCR OUTPUT light is on. To make the green VC OUTPUT light come on, VCR on the remote control OUTPUT on the front panel.

17. OUTPUT Button

Press to select DVD mode or VCR mode.

● You can switch the output mode either by pressing

OUTPUT on the front panel, or by pressing DVD VCR on the remote control. However, if you pre

OUTPUT on the front panel first, you need to r select the corresponding mode by pressing DV or VCR on the remote control.

18. DVD OUTPUT Light (Green)

This light appears when the DVD output mode selected. You can only watch DVDs when the gree DVD OUTPUT Light is on. To make the green DV OUTPUT light come on, press DVD on the remote co trol or OUTPUT on the front panel.

19. Display, Remote Sensor Window

20. PLAY ( B) Button (DVD)

Press to begin playback.

21. STOP ( C ) Button (DVD)

Stops operation of the disc.

22. SURROUND Button

Press to activate the virtual surround.

23. POWER/STANDBY (

Press to turn the power on and off. (As to the indication of the Operate switch,

ON and “

/I” shows electrical power stand-by.)

24. A-B REPEAT Button

Repeats playback of a selected section.

25. REPEAT Button

Repeats playback of the current disc, title, chapter track.

26. MODE Button

Activates programme playback or random playbac

AV 3 (mono)

VIDEO IN

/I) Button

PROGRAM

AUDIO IN R

791113171921 15

6810121420

“ I ” show

2-4

Page 15

h e

e d

ss eD

Press to directly select a Track (Audio CD) for playback.

7. ZOOM Button

3 3 3

Enlarges part of a DVD-reproduced image.

8. CLEAR/C.RESET Button

● DVD mode

Press to reset the setting.

● VCR mode

Press to reset the counter.

9. ANGLE Button

Press to change the camera angle to see the sequence being played back from a different angle.

0. SUBTITLE Button

Press to select the desired subtitle language.

0. TIMER Button

Press to put the VCR into standby mode for a timer recording.

1. MENU Button

● DVD mode

Press to display the menu of the Disc.

● VCR mode

Press to access the VCR menu.

2. Arrow Buttons

● DVD mode

2. p / o / B / s Buttons

Move the cursor and determines its position.

● VCR mode

2. p / o Buttons

Press to enter digits when setting programme (For example: setting clock or timer programme). Press to select the setting modes from the on screen menu.

B Button

When setting programme (For example: setting clock or timer programme), press to determine your selection and proceed to the next step you want to input. Press to determine the setting modes from the on screen menu.

s Button

Press to cancel a setting of timer programme. Press to correct digits when setting programme (For example: setting clock or timer programme).

3. ENTER Button (DVD)

Press to accept a setting.

4. RETURN Button (DVD)

Returns to the previous operation.

5. DISC NAVIGATION Button (DVD)

Press to display the first scenes of each chapter of the title being played.

SYSTEM Button

To change the VCR colour system during playback for matching recorded system (PAL or MESECAM)

6. DVD Button

Press to select DVD mode for the remote control.

● You can switch the OUTPUT mode either by press-

ing OUTPUT on the front panel, or by pressing DVD or VCR on the remote control. However, if you pr ess

OUTPUT on the front panel first, you need to reselect the corresponding mode by pressing DVD or VCR on the remote control.

7. SLOW Button

During tape playback, press to view the video tape in slow motion. Press PLAY ( B) to resume normal playback. This button does not affect DVD playback.

8. SKIP ( HG)Buttons

● DVD mode

Press to skip Chapters or Tracks.

● INDEX SEARCH Button (VCR)

Press to perform Index Search.

● TIME SEARCH Button (VCR)

Press to perform Time Search.

9. STOP ( C ) Button

● DVD mode

Press to stop the disc motion.

● VCR mode

Press to stop the tape motion.

(VCR)

40. h Button

● DVD mode

Press to view the DVD picture in fast reverse motio or to reverse playback of an Audio CD.

● VCR mode

Press to rewind the tape, or to view the picture rapi ly in reverse during the playback mode (Rewin Search).

41. PAUSE/STEP (k) Button

● DVD mode

Press to pause Disc playback. Press repeatedly advance the DVD picture step by step (or one fram at a time).

● VCR mode

While recording, press to temporarily stop th recording (pause). Press a second time to resume no mal recording. You can not pause a One Touc Recording. Or, press during tape playback to freez the picture. Press to advance the picture one frame a time during still mode.

42. D Button

● DVD mode

Press to fast forward the Disc. Press PAUSE/STE then press this button to begin slow motion playbac Press this button repeatedly to change the forwar speed of slow motion.

● VCR mode

Press to rapidly advance the tape, or view the pictur rapidly in forward during playback (Forwar Search).

43. PLAY (B) Button

● DVD mode

Press to begin playback.

● VCR mode

Press to begin playback.

44. PROG

45. REC Button (VCR)

46. SPEED Button (VCR)

47. VCR Button

48. SETUP Button (DVD)

49. TOP MENU Button (DVD)

(o/p) Button (VCR)

Press to change TV channels on the DVD/VCR. Press to adjust the tracking during normal or slo motion playback; press to remove vertical jitter in a sti picture.

Press once to start a recording. Press to select the VCR’s recording speed (SP or LP) Press to select VCR mode for the remote control.

● You can switch the OUTPUT mode either by pres

ing OUTPUT on the front panel, or by pressing DV or VCR on the remote control. However, if you pr e

OUTPUT on the front panel first, you need to r select the corresponding mode by pressing DV or VCR on the remote control.

Press to enter the setup mode.

Press to bring up the Top Menu on a disc.

50. DISPLAY Button

● DVD mode

Press to access or remove the display screen durin DVD or Audio CD playback.

● VCR mode

Press to access or remove the VCR’s On screen st tus display.

51. AUDIO Button

● DVD mode

Press to select a desired audio language or soun mode.

● VCR mode

Press to select a desired sound mode.

52. Number Buttons

● DVD mode

2-5

Page 16

+10 Button:

the S-Video In jack of a television.

AERIAL

RF OUT

AV2 (DECODER)

DVD/VCR AV1 (TV)

DVD

DIGITAL

AUDIO OUT

LRCOAXIAL OPTICAL

ANALOG

AUDIO OUT

S-VIDEO

OUT

VCR

2435678

When searching a TITLE, a CHAPTER, or a TRACK, use this button to enter numbers 10 and above. For example when entering ‘15’, press this button first ,then ‘5’.

● VCR mode

Press to select TV channels on the VCR. To select channels, enter channel numbers as a twodigit number for the quickest results. For example, to select channel 6, press 0 then 6.

3. OPEN/CLOSE (A) Button (DVD)

Press to open or close the disc loading tray.

REAR VIEW

57. EJECT Button (VCR)

Press to eject the video cassette from the VCR.

54. SEARCH MODE/QUICK-FIND Button

● DVD mode

Press to access or remove the Search displa which allows you to go directly to a specifi Title/Chapter/Track/Time.

● VCR mode

Press to use Quick-Find mode.

Caution: Do not touch the inner pins of the jacks on th rearpanel. Electrostatic discharge may cause permanen damage to the DVD/VCR.

. AERIAL Jack

Connect your antenna, Cable Box, or Direct Broadcast System.

. RF OUT Jack

Use the supplied aerial cable to connect this jack to the ANTENNAIN Jack on your TV.

. AV2 (DECODER)

Connect 21-Pin scart cable here and to the 21-Pin

Socket

scart jack of a decoder.

. AV1 (TV)

Socket

Connect 21-Pin scart cable here and to the 21-Pin scart jack of a TV.

If your TV has RCA type audio and video input jacks, you may connect to your DVD/VCR’s AV1 (TV) scart socket through the 21pin/RCA adapter (supplied).

6. ANALOG AUDIO OUT Jacks (DVD only)

Connect the supplied audio cables here and to th Audio In jacks of a television or other audio equipment.

DIGITAL COAXIAL AUDIO OUT

Connect an optional coaxial digital audio cable here and to the Coaxial Digital Audio In jack of decoder or audio receiver.

DIGITAL OPTICAL AUDIO OUT

Jack

(DVD onl

(DVD only)

Connect an optional optical digital audio cable here and to the Optical Digital Audio In jack of decoder or audio receiver.

9. AC POWER CORD

Connect to a standard AC outlet to supply powe to the DVD/VCR.

. S-VIDEO OUT Jack (DVD only)

Connect an optional S-Video cable here and to

2-6

Page 17

MAINTENANCE AND INSPECTION3

3-1 TROUBLESHOOTING

Troubleshooting is how to service for the specifying malfunction or poor parts. Detect malfunction or poor parts and service as the following charts.

3-1-1 Power Supply Section

FLOW CHART NO.1

The power cannot be turned on.

Is the fuse normal?

Yes

Is normal state restored when once unplugged power cord is plugged again after several seconds.

Yes

Is the AL+5V line voltage normal?

Yes

Check each rectifying circuit of secondary circuit and service it if defective.

FLOW CHART NO.2

The fuse blows out.

Check the presence that the primary component is leaking or shorted and service it if defective.

After servicing, replace the fuse.

FLOW CHART NO.3

When the output voltage fluctuates.

Does the secondary side photo coupler circuit operate normally?

Yes Check the circuit and service it if defective. (IC1001, D1012, D1024)

See FLOW CHART No.2 <The fuse blows out.>

Check for lead or shor-circuiting of primary circuit component and service it if defective. (Q1001,Q1003,T001,D1001,D1002,D1003, D1004,D1011,C1003,C1005)

Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side and service it if defective.

Check the circuit and service it if defective. (IC1001, Q1009, D017)

FLOW CHART NO.4

When buzz sound can be heard in the vicinity of power circuit.

Check if there is short circuit on the rectifying diode and the circuit in each rectifying circuit of secondary side and service it if defective. Q1052,Q1053,Q1055)

FLOW CHART NO.5

-FL is not outputted.

Is the supply voltage of -30V fed to the anode of D018?

Check for load circuit short-circuiting or leak, and service it if defective.

(D013,D014,D016,D018,D019,D1008,D1016,D1030,IC1051,IC1052,Q051,Q053,Q055,Q056,Q058,

Check D018 and their periphery, and service it if defective.

Yes

3-1

Page 18

FLOW CHART NO.6

P-ON+5V is not outputted.

Is 5V voltage supplied to the collector of Q056?

Yes

Is the "H" pulse inputted into the base of Q056?

Yes

Replace Q056.

FLOW CHART NO.7

EV+3.3V is not outputted.

Is 5V voltage supplied to Pin(1) of IC1052?

Yes

Replace IC1004.

FLOW CHART NO.8

P-ON+12V is not outputted.

Is 12V voltage supplied to the emitter of Q1053?

Yes

Is the "L" pulse (approximately 0V) outputted to the collector of Q1054?

Yes

Replace Q1053.

Check D016, D017, C017, C018, and their periphery, and service it if defective.

Check Q056, R058, R059, R060 and their periphery, and service it if defective.

Check D1008, C1007, C1108 and their periphery, and service it if detective.

Check D014, C014, C1105 and their periphery, and service it if detective.

Check Q1054 and PWRCON line, and service it if detective.

FLOW CHART NO.9

P-ON+3.3V is not outputted. (EV+3.3V is outputted normally.)

Is the "H" pulse (approximately 5V) inputted into the base of Q1052?

Yes

Replace Q1052.

FLOW CHART NO.10

EV 1.5V is not outputted.

Is approximately 2.35V voltage supplied to Pin(1) of IC1051?

Yes

Replace IC1051.

See FLOW CHART NO.8. <P-ON+12V is not outputted. >

Check D1030,C1035,C1107, and their periphery, and service it if detective.

3-2

Page 19

FLOW CHART NO.11

The fluorescent display tube does not light up.

Is 3.3V voltage supplied to Pin(6, 24) of IC612?

Yes

Is approximately -24V to -28V voltage supplied to Pin(15) of IC612?

Yes Is there approximately 500kHz oscillation to Pin(26) of IC612?

Yes Are the filament voltage applied between (1, 2)

and (34, 35) of the fluorescent display tube? Also negative voltage applied between these pins and GND?

Yes Replace the fluorescent display tube (IC611).

Check the EV+3.3V line and service it if detective

Check the -FL (-28V) line and service it if detective.

Check R2060, IC612 and their periphery, and service it if detective.

Check the power circuit, D1016, D1017, R1040, C1018 and their periphery, and service it if detective.

3-3

Page 20

3-1-2 DVD Section

FLOW CHART NO.1

The key operation is not functioning.

Are the contact point and the installation state of the key switches (SW2020-2022) normal?

Yes

When pressing each key switches (SW2020, SW2021, SW2022), do the voltage of each pin of CN2014 (shown below) change to "L" (0V) from "H" (3.3V)? SW2020 → CN2014 1PIN SW2021 → CN2014 3PIN SW2022 → CN2014 4PIN

Yes

Replace DVD Main CBA.

FLOW CHART NO.2

No DVD operation is possible from the remote control unit. (

Is 5V voltage supplied to Pin(3) terminal of the RM2001 (remote control receiver)?

Yes

Is the "L" pulse sent out from Pin(1) terminal of the RM2001 (remote control receiver) when the remote control unit is activated?

Yes

Is the "L" pulse signal supplied to Pin(22) of CN1051?

Yes

Replace the DVD Main CBA.

Re-install the key switches (SW2020, SW2021, SW2022) correctly or replace the poor switch.

Check the key switches (SW2020, SW2021, SW2022) and their periphery, and service it if detective.

Operation is possible from the unit.)

Check EV+5V line, and service it if detective.

Replace the RM2001 (remote control receiver). Replace remote control unit if needed.

Check the line between the RM2001 (remote control receiver) and Pin(22) of CN1051, and service it if detective.

FLOW CHART NO.3

The disc tray cannot be opened and closed. (It can be done using the remote control unit.)

Does the voltage of Pin(1) on CN2014 become 0V when pressing "OPEN/CLOSE" button on the unit?

Yes

Refer to "FLOW CHAR NO.4" <The disc tray cannot be opened and closed.>

FLOW CHART NO.4

The disc tray cannot be opened and closed.

Replace the DVD Main CBA.

No improvement can be found.

Yes

Replace the DVD Mechanism.

Replace the "OPEN/CLOSE" button (SW2020).

Original DVD Main CBA is poor.

3-4

Page 21

FLOW CHART NO.5

The [No Disc] indication. (In case of focus error)

Replace the DVD Main CBA.

No improvement can be found.

Yes

Replace the DVD Mechanism.

FLOW CHART NO.6

The [No Disc] indication. (In case focus servo does not function.)

Replace the DVD Main CBA.

No improvement can be found.

Yes

Replace the DVD Mechanism.

FLOW CHART NO.7

The [No Disc] indication. (When the laser beam does not light.)

Replace the DVD Main CBA.

No improvement can be found.

Yes

Replace the DVD Mechanism.

Original DVD Main CBA is poor.

FLOW CHART NO.8

Both picture and sound do not operate normally.

Replace the DVD Main CBA.

No improvement can be found.

Yes

Replace the DVD Mechanism.

Original DVD Main CBA is poor.

3-5

Page 22

FLOW CHART NO.9

Picture does not appear normally.

Set the disc on the disc tray, and playback.

Are the video signals outputted to each pin of CN1601 on the Main CBA?

CN1601 1PIN S-Y CN1601 9PIN S-C CN1601 3PIN R CN1601 7PIN G CN1601 5PIN B

Yes

Are the video signals shown above inputted into each pin of IC1402?

IC1402 6PIN S-Y IC1402 2PIN S-C IC1402 14PIN R IC1402 16PIN G IC1402 12PIN B

Yes

Are the video signals outputted to each pin of IC1402?

IC1402 31PIN CVBS IC1402 28PIN S-Y IC1402 33PIN S-C IC1402 22PIN R IC1402 19PIN G IC1402 25PIN B

Yes

Are the video signals outputted to the specific output terminal?

Are the luminance signals outputted to the S-OUT terminal (JK1401)?

Are the chroma signals outputted to the S-OUT terminal (JK1401)?

Are the RGB video signals outputted to the Scart jack (JK101)?

Are the composite video signals outputted to Pin(19) of Scart jack (JK101)?

Yes

Check the AV cable or Monitor and service it if detective.

Replace the DVD Main CBA or the DVD Mechanism.

Check the line between each pin of CN1601 and each pin of IC1402 on the Main CBA, and service it if detective.

CN1601 1PIN → IC1402 6PIN S-Y CN1601 9PIN → IC1402 2PIN S-C CN1601 3PIN → IC1402 14PIN R CN1601 7PIN → IC1402 16PIN G CN1601 5PIN → IC1402 12PIN B

Check P-ON+5V line and service it if detective.

Is 5V voltage applied to the Pin(1, 34) of IC1402?

Yes

Replace IC1402?

Check the periphery of JK1401 from Pin (28) of IC1402 and service it if detective.

Check the periphery of JK1401 from Pin (33) of IC1402 and service it if detective.

Check the periphery of JK101 from Pins (19, 22,

25) of IC1402 and service it if detective.

Are the composite video signals outputted to Pin(4) of IC751?

Yes

Check the line between Pin(4) of IC751 and JK101 and service it if detective.

Are the "H" pulse inputted into Pins(9,10,11) of IC751?

Check the line between Q752 and OUTPUT SELECT, and service it if detective.

3-6

Yes

Replace IC751.

Page 23

FLOW CHART NO.10

Audio is not outputted.

Set the disc on the disc tray, and playback.

Are the analog audio signals outputted to each pin of CN1601 on Main CBA?

CN1601 13PIN DVD-A(L) CN1601 15PIN DVD-A(R)

Yes

Are the analog audio signals inputted to each pin of IC1201.

IC1201 2PIN DVD-A(L) IC1201 6PIN DVD-A(R)

Yes

Is the "H" level mute signals outputted to CN1601 on the Main CBA ?

CN1601 12PIN DVD-A-MUTE CN1601 16PIN DVD-A(R)-MUTE CN1601 14PIN DVD-A(L)-MUTE

Yes

Are the analog audio signals outputted to each pin of IC1201?

IC1201 1PIN DVD-A(L) IC1201 7PIN DVD-A(R)

Yes

Are the audio signals outputted to the specific output terminal?

Are the audio signals outputted to the L/R OUT terminal (JK751)?

Are the audio signals outputted to Pins(1, 3) of JK101 (Scart jack)?

Yes

Check the AV cable or Monitor and service it if detective.

Replace the DVD Main CBA or the DVD Mechanism

Check each line between each pin of CN1601 and each pin of IC1201 on Main CBA, and service it if detective.

CN1601 13PIN → IC1201 2PIN DVD-A(L) CN1601 15PIN → IC1201 6PIN DVD-A(R)

Replace the DVD Main CBA or the DVD Mechanism

Replace IC1201.

Check the periphery between Pins(1,7) of IC1201 and JK751, and service it if detective.

Are the audio signals outputted to Pin(14,15) of IC751?

Yes

Check the line between Pin(14,15) of IC751 and JK101, and their periphery, and service it if detective.

Are the "L" pulse inputted into Pins(9,10,11) of IC751?

Yes

Replace IC751.

Check the line between Q752 and OUTPUT SELECT and service it if detective.

3-7

Page 24

3-1-3 VCR Section

FLOW CHART NO.1

The key operation is not functioning.

Are the contact point and the installation state of the key switches normal?

Yes

Is the control voltage normally inputted into Pins(7,8) of IC501?

Yes

Replace IC501.

Re-install some key switches correctly or replace some key switches.

Check the key switches and their periphery, and service it if detective.

Terminal voltage of IC501-7,8

4.30

3.60

2.90

2.39

1.98

1.61

1.27

0.92

0.51 (V)

KEY-1

IC501-7

-----

CH DOWN

CH UP PLAY

STOP /EJECT

-----

POWER

REC/OTR

KEY-2

IC501-8

-----

----S-INH

REW

-----

OUTPUT

FLOW CHART NO.2

No DVD operation is possible from the remote control unit. (

Is 5V voltage supplied to the Pin(3) terminal of

the RM2001 (remote control receiver)?

Yes

Is the "L" pulse sent out from Pin(1) terminal of

the RM2001 (remote control receiver) when the remote control unit is activated?

Yes

Is the "L" pulse signal supplied to the Pin(14) of IC501?

Yes

Replace IC501.

Operation is possible from the unit.)

Check EV+5V line and service it if detective.

Replace the RM2001 (remote control receiver). Or replace remote control unit.

Check the line between the RM2001 (remote control receiver) and the Pin(14) of IC501, and service it if detective.

3-8

Page 25

FLOW CHART NO.3

Cassette tape can not be loaded.

When loading a cassette tape, on Pin(10) of IC501, does the "L" pulse switch to the "H" pulse?

Yes When loading a cassette tape, is the specified voltage (approximately 13V) outputted to the terminal of the Loading Motor Unit?

Yes Replace the Loading Motor Unit.

FLOW CHART NO.4

Cassette tape is ejected right after the loading.

When loading a cassette tape, on Pin(10) of IC501, does the "L" pulse switch to the "H" pulse?

Yes When loading a cassette tape, on Pin(4) of IC501, does the "L" pulse switch to the "H" pulse?

Yes When loading a cassette tape, does the LD-SW

operate normally?

Yes Replace IC501.

Check the line between the start sensor and Pin(10) of IC501, and service it if detective.

Replace the Capstan Motor Unit.

Check the line between the start sensor and Pin(10) of IC501, and service it if detective.

Check the line between the end sensor and Pin(4) of IC501, and service it if detective.

Check the line between the LD-SW(SW507) and Pin(9) of IC501, and service it if detective.

FLOW CHART NO.5

Cassette tape can not be ejected.

When pressing the eject button, does the Capstan Motor start rotating?

Yes While the Capstan Motor is rotating, is the Takeup Reel rotating?

Yes While the Takeup Reel is rotating, is the reel pulse signal inputted to Pin(80) of IC501?

Yes While the reel pulse signal is inputting, is "L" pulse inputted to Pin(81) of IC501?

Yes Is the specified voltage (approximately 13V) outputted to the terminal of the Lading Motor Unit?

Yes Is the Loading Motor rotating?

Yes Check the Cassette Cam or Cassette Gear, etc, and service it if detective.

Refer to "FLOW CHART NO.6 " <The Capstan Motor does not rotate>.

Check the Reel Disc or Reel Drive Unit, and service it if detective.

Check the line between the Takeup Reel sensor and Pin(80) of IC501, and service it if detective.

Replace IC501.

Replace the Capstan Motor unit.

Replace the Loading Motor unit.

3-9

Page 26

FLOW CHART NO.6

Capstan Motor does not rotate.

Is 5V voltage supplied to Pin(2) of CL502?

Yes

Is over approximately 2.6V voltage supplied to Pin(5) of CL502?

Yes

Is 12V voltage supplied to Pins(1,11) of CL502?

Yes

Replace the Capstan Motor Unit.

FLOW CHART NO.7

Drum Motor does not rotate.

Is 5V voltage supplied to Pin(2) of CL502?

Yes Is over approximately 2.6V voltage supplied to Pin(8) of CL502?

Yes Is 12V voltage supplied at Pin(1,11) of CL502?

Yes Replace the Capstan Motor Unit or Cylinder Assembly.

Check the P-ON+5V line and service it if detective

Check the line between Pin(5) of CL502 and Pin(76) of IC501, and service it if detective.

Check the AL+12V line and service it if detective.

Check the P-ON+5V line and service it if detective

Check the line between Pin(8) of CL502 and Pin(77) of IC501, and service it if detective.

Check the AL+12V line and service it if detective.

FLOW CHART NO.8

Drum Motor rotates only for a few seconds.

Is the drum PG/FG signal inputted to Pin(90) of IC501?

Yes Is the RF-SW signal outputted to Pin(18) of IC501?

Yes Is 12V voltage supplied Pin(1,11) of CL502?

Yes Replace the Capstan Motor Unit or the Cylinder Assembly.

FLOW CHART NO.9

RF-SW signal is not outputted.

Is the Drum Motor rotating?

5Vp-p

Yes

Is the drum PG/FG signal inputted to Pin(90) of IC501?

Yes

Replace IC501.

3-10

D-PG

D-FG

2.5Vp-p

Replace the Capstan Motor Unit or the Cylinder Assembly.

Replace IC501.

Check the AL+12V line and service it if detective.

Refer to "FLOW CHART NO.7" <Drum Motor does not rotate> and "FLOW CHART NO.8" <Drum Motor rotates only for a few seconds>.

Replace the Capstan Motor Unit or the Cylinder Assembly.

Page 27

FLOW CHART NO.10

Video E-E does not appear.

Is the Video signal inputted to Pins(48,50,52,54) of IC301?

Yes

Is the C-SYNC signal outputted to Pin(67) of IC301?

Yes No

Is the C-SYNC signal inputted to Pin(58) of IC501?

Check the line between Pin(67) of IC301 and Pin(58) of IC501, and service it if detective.

Yes

1) In the external input mode Check the line between Pin(20) of JK101 (Scar jack) and Pin(50) of IC301, and service it if detective. Check the line between Pin(20) of JK1402 (Scart jack) and Pin(52) of IC301, and service i if detective.

Check the line between the video input terminal (front) and Pin(54) of IC301, and service it if detective.

2) In the U/V tuner mode Check the line between Pin(24) of the U/V tune and Pin(48) of IC301, and service it if detective

Replace IC301.

Is the video signal inputted into Pin(3) of IC751?

Yes

Is the video signal outputted to Pin(4) of IC751?

Is approximately 6.8V voltage supplied to Pin(16) of IC751, or approximately -8V voltage supplied to Pin(7) of IC751?

Yes

Is the "H" pulse inputted into Pin(9) of IC751?

Yes

Check the line between Pin(61) of IC301 and Pin(3) of IC751, and service it if detective.

Is the video signal outputted to the emitter of Q104?

Check the line between Pin(4) of IC751 and Q104,

Yes

When only Line signal is not outputted... check the line between Pin(19) of JK101 (Scart jack), and service it if detective. When only RF signal is not outputted... check the tuner (TU701), and emitter

of Q104 and Pin(6) of the tuner, and

service it if detective.

Check the AL+12V line (R752, D751) and the AL-30V line (R751,R753), and service it if detective

Check Q752 and the OUTPUT-SELECT line, and service it if detective.

and service it if detective.

the emitter of

Q104 and

the line between the

Replace IC751.

3-11

Page 28

FLOW CHART NO.11

Hi-Fi E-E audio does not operate normally.

Is each signal supplied to each pin of IC451 as below?

L-ch R-ch Front input terminal Scart jack 1 (JK101) Scart jack 2 (JK1402) Tuner audio signal

Pin(8) Pin(54) Pin(6) Pin(52)

Pin(10) Pin(56)

Pin(4) Pin(50)

No No No No

Check the peripheral circuit of the front input terminal and service it if detective.

Check the peripheral circuit of the Scart jack 1 (JK101) and service it if detective.

Check the peripheral circuit of the Scart jack 2 (JK1402) and service it if detective.

Is the SIF signal outputted from Pin(22) of the tuner

Yes

Is the 5V voltage supplied to Pins(16,32,35,36,46,55) of IC451, or the 9V voltage supplied to Pin(69) of IC451?

Yes

Is the serial data and the clock signal supplied to Pins(37,38) of IC451?

Yes

Is the "L" pulse inputted into the Pin(53) of IC451?

Yes

Is the audio signal outputted to Pins(74,76) of IC451?

Yes

Is the audio signal inputted into Pins(1,13) of IC751?

Yes

Is the audio signal outputted to Pins(14,15) of IC751?

Yes

Check the line between Pins(14,15) of IC751 and Pins(1,3) of JK101 (Scart jack), and service it if detective.

Yes

Check the line between Pins(4,

50) of IC451 and Pin(22) of tuner, and service it if detective.

Check the circuit of AL+5V, P-ON+5V and P-ON+9V, and service it if detective.

Check the line between Pins(37,38) of IC451 and Pins(71,72) of IC501, and service it if detective.

Check the line between Pin(53) of IC451 and Pin(82) of IC501, and service it if detective.

Replace IC451.

Check the line between Pins(74,76) of IC451 and Pins(1,13) of IC751, and service it if detective.

Is approximately 6.8V voltage supplied to Pin(16) of IC751, or approximately -8V voltage supplied to Pin(7) of IC751?

Check the AL+12V line (R752, D751) and the

Yes

AL-30V line (R751,R753), and service it if detective

Replace the tuner.

Replace IC751.

3-12

Yes

Is the "H" pulse inputted into the Pins(9,10,11) of IC751?

Check Q752 and the OUTPUT SELECT line, and service it if detective.

Page 29

FLOW CHART NO.12

Hi-Fi audio can not be recorded normally. (E-E mode is normal.)

Is the REC FM signal outputted to Pin(26) of IC451?

Yes

Is the line between Pin(8) of CL251 and Pin(26) of IC451 normal?

Yes

Replace the Cylinder Assembly.

FLOW CHART NO.13

Hi-Fi audio can not be playbacked normally. (Hi-Fi E-E mode is normal.)

Is the Playback Envelope signal outputted to Pin(33) of IC451?

Yes

Replace IC451.

FLOW CHART NO.14

Hi-Fi audio can not be recorded normally in the linear audio mode. (E-E mode is normal.)

Is the audio signal inputted into Pin(13,15,17) of IC301?

Yes

Does the Bias oscillation circuit operate normally?

Yes

Is the audio signal outputted to Pin(11) of IC301?

Yes

Is the audio signal outputted to Pin(100) of IC301?

Yes

Is CL504 and the connected cable normal?

Replace IC451.

Service the line between Pin(8) of CL251 and Pin(26) of IC451.

Is the Hi-Fi-H-SW signal inputted into to Pin(39) of IC451

Yes

Replace IC451.

Check the line between Pin(78) of IC451 and Pin(13,15,17) of IC301, and service it if detective.

Check the Bias oscillation circuit ( Q404,Q405,Q406)

Replace IC301.

Replace CL504 and the connected cable.

Check the Hi-Fi-H-SW line between Pin(39) of IC451 and Pin(19) of IC501, and service it if detective.

and service it if detective.

Q401,Q403,

Replace ACE head.

Yes

3-13

Page 30

FLOW CHART NO.15

Hi-Fi audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.)

Is the audio signal supplied to Pin(9) of IC301?

Are the CL504, the connected cable and the parts on periphery of playback amplifier normal?

Yes

Is there no dirt on the surface of ACE head?

Yes

Is the height of ACE head appropriate?

Yes

Replace the ACE head.

Yes

Is the audio signal outputted to Pin(11) of IC301?

NoYes

Check the line between Pin(11) of IC301 and Pin(80) of IC451, and service it if detective.

Service and replace poor parts.

Clean the surface of ACE head.

Readjust the height of the ACE head.

Replace IC301.

3-14

Page 31

3-2 FIRMWARE RENEWAL MODE

3-2-1 How to Update the Firmware Ver-

sion

1. Turn the power on and remove the disc on the tray.

2. To put t he DVD player into v ersion up mo de, pr ess [9], [8], [7], [6], and [SEARCH MODE] buttons on the remote control un it in that order. The tray will open automatically. Fig. 3-2-1 appears on the screen and Fig. 3-2-2 appears on the VFD. The DVD player can also enter the version up mode with the tray open. In this case, Fig. 3-2-1 will be shown on the screen while the tray is open.

5. After programming is fi nish ed, the tray opens au tomatically. Fig. 3-2-5 appears on the scree n an d the checksum in (*3) of Fi g. 3-2-5 appears on the VFD. (Fig. 3-2-6) At this time, no buttons are available.

AppearanceNo. State

Reading... Sending files into the memory

Erasing... Erasing previous version data

Programming...

3 Writing new version data

F/W Version Up Mode

Please insert a DISC

for F/W Version Up.

EXIT: POWER

Fig. 3-2-1 Version Up Mode Screen

ig. 3-2-2 VFD in Version Up Mod

3. Load the disc for version up.

4. The DVD player ente rs the F/W version up mode automatically. Fig. 3-2-3 appears on the screen and Fig. 3-2-4 appears on the VFD.

F/W Version Up Mode

VERSION : ******** Reading...(*2)

EXIT: POWER

Fig. 3-2-3 Programming Mode Screen

F/W Version Up Mode

VERSION : ******** Completed

SUM : 7abc (*3)

ig. 3-2-5 Completed Program Mode Scree

ig. 3-2-6 VFD upon Finishing the Programming Mode (Exampl

6. Unplug the AC cord from the AC outlet. Then plug it

7. To exit this mode, press [POWER] button.

3-2-2 How to Verify the Firmware Ver-

sion

1. After making sure that no disc is in unit, turn the power on.

2. Press [1], [2], [3], [4], and [DISPLA Y] buttons on the remote control un it in that order. The B/E version appears on the VFD , and th e F /E an d B/E ve rsio ns appear on TV screen.

3. Turn the power off to reset the unit.

Note:

If the firmware has been changed, etc., we will use Service News, etc. to report on how to obtain new firmware data and create an upgraded disc.

ig. 3-2-4 VFD in Programming Mode (Exampl

The appearance shown in (*2) of Fig. 3-2-3 is described as follows:

3-15

Page 32

3-3 STANDARD MAINTEN ANCE

3-3-1 Service Schedule of Components

h: Hours : Check I : Change

Deck Periodic Service Schedule

Ref.No. Part Name 1,000 h 2,000 h 3,000 h 4,000 h

B2 B3 B8

B587 Tension Lever Assembly II

B31

B573, B574

B37 Capstan Motor II B52 B73

B86 F Brake Assembly (HI) II B133 B410 Pinch Arm Assembly II B414 M Brake (SP) Assembly (HI) II B416

Cylinder Assembly Loading Motor Assembly Pulley Assembly (HI)

AC Head Assembly Reel S, Reel T

Cap Belt FE Head Assembly

Idler Assembly (HI)

M Brake (TU) Assembly (HI)

B525 LDG Belt II

Notes:

1.Clean all parts for the tape tr ansport (Upp er Drum with Video Head / Pinch Roll er / Audio Control Head / Full Erase Head) using 90% lsopropyl Alcohol.

2.After cleaning the parts, do all DECK ADJUSTMENTS.

3.For the reference numbers listed above, refer to Deck Exploded Views.

3-16

Page 33

3-3-2 Cleaning

Cleaning of Video Head

Clean the head with a head cleanin g stick or chamois cloth.

Procedure

1.Remove the top cabinet.

2.Put on a glove (thin type) to avoid touching the upper and lower drum with your bare hand.

3.Put a few d rops of 90% Isopropyl alcohol o n the head cleaning stick or on the chamois cloth and, by slightly pressi ng it a gai ns t th e he ad tip , tur n the upper drum to the right and to the left.

Notes:

1.The video head surface is made of very hard material, but since it i s very thin, avoid clea ning it vertically.

2.Wait for the cleaned part to dry thorough ly before operating the unit.

3.Do not reuse a stained head cleaning stick or a stained chamois cloth.

Cleaning of ACE Head

Clean the head with a cotton swab.

Procedure

1.Remove the top cabinet.

2.Dip the cotton swab i n 90% Isopropyl alcoho l and clean the ACE head. Be careful not to damage the upper drum and other tape running parts.

Notes:

1.Avoid cleaning the ACE head vertically.

2.Wait for the cleaned part to dry thoroughly before operating the unit or damage may occur.

ACE Hea

Upper Cylinder

Do Not !

ideo Head

Cleaning Stick

3-17

Page 34

DISASSEMBLY 4

4-1 CABINET DISASSEMBLY INSTRUCTIONS

4-1-1 Disassembly Flowchart

This flowchart indicates the disassem bly steps to gain access to item(s) to be se rviced. W hen reass embling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally.

[1] Top Cover

[18] Side

Bracket

[5] DVD Main

CBA

[16] AFV CBA

[13] DVD OPEN/

CLOSE CBA

[12] Main CBA

[14] Function

CBA

[2] Front

Assembly

[3] Top Bracket

[4] DVD Mecha

Assembly

[6] Rear Unit

[10] VCR

Chassis Unit

[15] Jack CBA

[9] Rear Panel

[8] PCB Bracke

[7] Power

Supply CBA

[11] Deck

Assembly

[17] Deck

Pedestal

4-1-2 Disassembly Method

ID/

LOC.

No.

[1] Top Cover 4-1-1 7(S-1) -

[2]

[3]

[4]

[5]

[6] Rear Unit 4-1-5

PART

Front Assembly

Top Bracket

DVD Mecha Assembly

DVD Main CBA

Fig.No

4-1-2 (S-2), *7(L-1)

4-1-2 2(S-3), 2(S-3A) -

4-1-3

4-1-4

REMOVAL

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

3(S-4), *CN302, *CN401, *CN601

2(S-5), *CN201, *CN301

5(S-6), 4(S-7), CN003

Note

1 1-1 1-2

2 2-1 2-2 2-3

ID/

LOC.

No.

[7]

[8] [9]

[10]

[11]

[12] Main CBA 4-1-8 ---------- -

[13]

[14] [15] Jack CBA 4-1-9 Desolder -

[16] AFV CBA 4-1-9 Desolder [17]

[18]

(1)

Note:

(1): Identification (location) No. of parts in the figures (2):Name of the part (3):Figure Number for reference (4): Identification of parts to be removed, unhooked,

(5):Refer to “Reference Notes.”

PART

Power Supply CBA

PCB Bracket

Rear Panel VCR

Chassis Unit

Deck Assembly

DVD OPEN/ CLOSE CBA

Function CBA

Deck Pedestal

Side Bracket

↓

(2)

unlocked, released, unplugged, unclamped, or desoldered. P=Spring, L=Locking Tab, S=Screw, CN=Connector *=Unhook, Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2)

Fig.No

4-1-6 2(S-8), 2(S-8A) -

4-1-6 3(S-9) 4-1-6 ---------- -

4-1-7

4-1-8

4-1-9 Desolder -

4-1-10 7(S-13) -

4-1-10 (S-14) -

↓

(3)

REMOVAL

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

5(S-10), 2(S-11), 2(S-11A)

Desolder, (S-12), (S-12A)

↓

(4)

Note

4,5

↓

(5)

4-1

Page 35

Reference Notes

(

CAUTION 1: Locking Tabs (L-1) are fragile. Be careful not to break them.

1-1. Remove Screw (S-2). 1-2. Release seven Locking Tabs (L-1) (to do this,

first release five Locking Tabs (A) at the side and top, and then release two Locking Tabs (B) at the bottom.)

CAUTION 2: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caused by electrostatic charge accumulated on cloth, human body etc., during unpacking or repair work.

To avoid damage of pickup follow next procedures. 2-1. Slide the pickup unit as shown in Fig. 4-1-4. 2-2. Short the three short lands of FPC cable with sol-

der before removing the FFC cable (CN301) from it. If you disconn ect the FFC cable (CN3 01), the laser diode of pickup will be de stro yed. ( Fig . 4-1 -

2-3. Disconnect Connector (CN201). Remove two

Screws (S-5) and lift the DVD Main CBA. (Fig. 41-4)

CAUTION 3: When reassembling, confirm the FFC cable (CN301) is co nnected c ompletel y. Then remove the solder from the three short lands of FPC cable. (Fig. 4-1-4)

CAUTION 4: When reassembli ng, s older wir e jumper s as shown in Fig. 4-1-8.

CAUTION 5: Before installing t he Deck Assembly, be sure to place the pin of LD-SW on Main CBA as shown in Fig. 4-1-8. Then, install the Deck Assembly while aligning the ho le of Cam Gear with th e pin of LD-SW, the shaft of Cam Gear with the hole of LD-SW as shown in Fig. 4-1-8.

(L-1)

(A)

L-1)

(S-2)

(B)

[2] Front Assembly

CN601

CN302

S-4)

CN401

(S-3)

(S-3A)

[3] T op Bracket

(S-3A)

(A)

(L-1)

(A)

Fig. 4-1-2

(S-4)

[4] DVD Mecha Assembly

[1] T op Cover

(S-1)

Fig. 4-1-3

(S-1)

Fig. 4-1-1

4-2

Page 36

(S-5)

CN301

CN201

(S-5)

[5] DVD Main CBA

DVD Mecha

(S-8)

(S-8A)

[8] PCB Bracket

[7] Power Supply CBA

(S-8A)

(S-9)

[9] Rear Pane

Fig. 4-1-6

Slide

[6] Rear Unit

Pickup Unit

View for A

Short the three short lands by soldering

View for B

Fig. 4-1-4

(S-7)

(S-6)

(S-7)

CN003

(S-11)

(S-10)

(S-11A)

[10] VCR Chassis Unit

(S-11A)

(S-10)

(S-11)

(S-1

Fig. 4-1-7

(S-

Fig. 4-1-5

4-3

Page 37

[11] Deck Assembly

FE Head

Cylinder Assembly

ACE Head Assembly

SW507 LD-SW

[12] Main CBA

(S-12)

From ACE Head Assembly

(S-12A)

Lead with blue stripe

LD-SW

From Cylinder Assembly

[11] Deck Assembly

Shaft

Hole

From FE Head

[12] Main CBA

Cam Gear

Hole

[12] Main CBA

4-4

From Capstan Motor Assembly

Lead with white stripe

Printing side

Desolder

BOTT OM VIEW

Lead connections of Deck Assembly and Main CBA

Fig. 4-1-8

Page 38

Desolder

Lead with blue stripe

[13] DVD OPEN/ CLOSE CBA

Main CBA

[16] AFV CBA

[15] Jack CBA

(S-14)

[17] Deck Pedestal

(S-13)

Desolder from bottom

Desolder

Lead with blue stripe

Desolder from bottom

[14] Function CBA

Lead with blue stripe

Fig. 4-1-9

To Remove the Disc Manually

1. Remove the Top Cover.

2. Rotate this roulette in the direction of the arrow as shown below.

[18] Side Bracket

Fig. 4-1-10

Top Cover

VD Mecha

Tray

Deck Assembly

Rotate this roulette in the direction of the arrow

4-5

Page 39

4-2 DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK

MECHANISM

Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 4-1.) All the following proc edures, including those for adjustment and replacement of parts, should be done in Ejec t mode; see the positions of [4 4] an d [45 ] in F i g. 4-2- 1 o n page 4- 8. W he n reas se mbl in g, fo ll ow the ste ps in rev er se order.

STEP

START-

/LOC.

No.

[1] [1] Guide Holder A T 4-2-3 2(S-1) [2] [1] Cassette Holder Assembly T 4-2-4 [3] [2] Slider (SP) T 4-2-5 *(L-1), (S-1A) [4] [2] Slider (TU) T 4-2-5 *(L-2), (S-1B) [5] [4] Lock Lever T 4-2-5 *(L-3),*(P-1) [6] [2] Cassette Plate T 4-2-5 [7] [7] Cylinder Assembly T 4-2-1,4-2-6 Desolder, 3(S-2)

[8] [8] Loading Motor Assembly T 4-2-1,4-2-7

[9] [9] AC Head Assembly T 4-2-1,4-2-7 (S-4) [10] [2] Tape Guide Arm Assembly T 4-2-1,4- 2-8 *(P-2) [11] [10] C Door Opener T 4-2-1,4-2-8 *(L-4) [12] [11] Pinch Arm (B) T 4-2-1,4-2-8 *(P-3) [13] [12] Pinch Arm Assembly T 4-2-1,4-2-8 [14] [14] FE Head Assembly T 4-2-1,4-2-9 (S-5) [15] [15] Prism T 4-2-1,4-2-9 (S-6) [16] [2] Slider Shaft T 4-2-10 *(L-5) [17] [1 6] C Drive Lever (SP) T 4-2-10 [18] [1 6] C Drive Lever (TU) T 4-2-10 (S-7),*(P-4) [19] [19] Capstan Motor B 4-2-2,4-2-11 3(S-8), Cap Belt [20]

[21] [20] [22] [22] F Brake Assembly (HI) B 4-2-2,4- 2-12 *(L-6) [23] [22] Worm Holder B 4-2-2,4-2-13 (S-9),*(L-7),*(L-8) [24] [22]

[25] [26]

[27] [28] [26]

[29] [2 8] TR Gear Spring B 4-2-13 [30] [2 9] TR Gear A/B B 4-2-13 [31] [31] [32] [26] [33] [26] BT Arm B 4-2-2,4-2-14 *(P-5)

ING

No.

[20]

[25]

[20],[25]

[22],[23],

[26]

PART

Clutch Assembly (HI) B 4-2-2,4-2-12 (C-1) Center Gear B 4-2-12

Pulley Assembly (HI) B 4-2-2,4-2-13 Mode Gear B 4-2-2,4-2-13 (C-2) Mode Lever (HI) B 4-2-2,4-2-13 (C-3)

Cam Gear (A) (HI) B 4-2-2,4-2-13 (C-4) TR Gear C B 4-2-2,4-2-13 (C-5)

FF Arm (HI) B 4-2-1,4-2-13 Idler Asse mb l y (HI) B 4-2-1, 4 -2-14 *(L-9)

Fig. No.

REMOVAL INSTALLATION

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

Desolder, LDG Belt, 2(S-3)

ADJUSTMENT

CONDITION

(+)Refer to Alignment Sec.Page 4-13

4-6

Page 40

STEP

START-

/LOC.

No.

[34] [26]

[35] [34]

[36] [16],[26]

[37] [2],[26] [38] [3 7] Ten sion Lev er Assem bly T 4-2-1,4-2-15

[39] [38] T Lever Holder T 4-2-15 *(L-10) [40] [40] [41] [15],[40] Sensor Gear (HI) T 4-2-1,4-2-15 (C-7)

[42] [36],[40] Reel T T 4-2-1,4-2-15 [43] [38] Reel S T 4-2-1,4-2-15

[44] [34],[38]

[45] [35] [46] [19] TG Post Assembly T 4-2-1,4-2-16 *(L-11) [47] [27] Rack Assembly R 4-2-17 [48] [47] F Door Opener R 4-2-17

[49] [49] Cleaner Assembly T 4-2-1,4-2-6 [50] [49] CL Post T 4-2-6 *(L-12)

↓

(1)

ING

No.

↓

(2)

PART

Loading Arm (SP) Assembly

Loading Arm (TU) Assembly

M Brake (TU) Assembly (HI)

M Brake (SP) Assembly (HI)

M Gear (HI) T 4-2-1,4-2-15 (C-6)

Moving Guide S Preparation

Moving Guide T Preparation

↓

(3)

B 4-2-2,4-2-14

T 4-2-1,4-2-15

T 4-2-1,4-2-15 *(P-6)

T 4-2-1,4-2-16

(4)

↓

Fig. No.

↓

(5)

REMOVAL INSTALLATION

REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER

↓

(6)

ADJUSTMENT

CONDITION

(+)Refer to Alignment Sec.Page 4-13

↓

(7)

(1): Follow steps in sequence. When reassembling, follow the steps in reverse order.

These numbers are also used as identification (location) No. of parts in the figures. (2): Indicates the part to start disassembling with in order to disassemble the part in c olumn (1). (3):Name of the part (4): Location of the part: T=Top B=Bottom R=Right L=Left (5): Figure Number (6): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered.

P=Spring, W=Washer, C=Cut Washer, S=Screw, *=Unhook, Unlock, Release, Unplug, or Desolder

e.g., 2(L-2) = two Locking Tabs (L-2). (7): Adjustment Information for Installation

(+):Refer to Deck Exploded Views for lubrication.

4-7

Page 41

T op View

[14]

[38]

[37]

[7] [49] [8]

[45][44] [46][9]

[32][43] [41] [40][31] [42]

[13] [11]

[15]

[10] [12]

[36]

Bottom View

[23]

[24]

[27]

Fig. 4-2-1

[19]

[35]

[34]

[25]

[26]

4-8

[33][20][28][22]

Fig. 4-2-2

Page 42

(S-1)

[1]

(S-1)

Fig. 4-2-3

[7]

(S-1A)

[3]

(L-1)

[6]

(S-1B)

[4]

(L-3)

[5]

(L-2)

(P-1)

Fig. 4-2-5

[49]

Pin D

Pin C

Slots B

First, while pushing the locking tab as shown in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A. Then, remove Pin C and Pin D on [2] from the slots B as shown.

[2]

Pin A

Locking tab

Pull up

Slide

Pin B

Slot A

View for A

Fig. 4-2-4

Desolder from bottom

(S-2)

View for A

[50]

(L-12)

Lead with Red Stripe

Fig. 4-2-6

4-9

Page 43

[9]

)

(S-4)

[8]

[14]

(S-5)

(S-6)

[15]

(S-3)

Adj. Screw

[13]

LDG Belt

Desolder from bottom

Lead with White Stripe

View for A

[8]

Fig. 4-2-7

[11]

(L-4)

(P-3)

[12]

[10]

Fig. 4-2-9

[17]

(L-5)

[16]

[18]

(P-4

(P-2

4-10

Pin of [12]

View for A

Pin of [10]

Groove of [27]

[27]

When reassembling [10] and [12], confirm that pin of [10] and pin of [12] are in the groove of [27] as shown.

Fig. 4-2-8

(S-7)

Fig. 4-2-10

Page 44

Cap Belt

[19]

(S-8)

Fig. 4-2-1

[24]

[27]

(S-9)

(L-8)

(C-4)

(C-5)

[28]

[29]

[30]

[26]

(L-7)

(C-3)

[23]

(C-2)

[25]

[22]

turn

(L-6)

(C-1)

[21]

Pin on [22]

[20]

[31]

Position of Mode Lever when installed

Pin of [36]

Bottom View

[27]

Pin of [33]

Align [26] and [27] as shown.

First groove on [27]

Pin of [37]

First tooth on [44]

[26]

Position of pin on [22]

[27]

Fig. 4-2-12

T op Vie w

[27]

When reassembling [27], meet the first groove on [27] to the first tooth on [44] as shown.

Fig. 4-2-13

4-11

Page 45

[33]

(P-5)

Refer to the Alignment Section, Page 4-13.

[44]

[45]

[46]

(L-11)

[32]

(L-9)

[43]

[35]

[34]

Fig. 4-2-16

Fig. 4-2-14

[38]

[36]

(P-6)

[37]

(C-7)

[41]

[39]

turn

(C-6)

[40]

turn

(L-10)

[42]

turn

Fig. 4-2-15

[48]

[47]

Slide

Fig. 4-2-17

4-12

Page 46

4-3 ALIGNMENT PROCEDURES OF MECHANISM

)

The following procedures describe how to align the individual gears and levers that make up the tape loading/unloading mechanism. Since information about the state of the mechanism is provided to the System Control Circuit on ly through the Mode Switch, it is essential that the correct relationship between individual gears and levers be maintained.

All alignments are to be performed with the mechanism in Eject mode, in the sequenc e given. Each

procedure assumes th at all pr evious pro cedures hav e been completed.

IMPORTANT:

If any one of these alignments is not performed

properly, even if off by only one tooth, the unit will

unload or stop and i t may result in damage to the

mechanical or electrical parts.

Alignment points in Eject Position

T op View

Alignment 3

Alignment 1

Loading Arm (SP) and (TU) Assembly

Install Loading Arm (SP) and (TU) Assembly so that their triangle marks point to each other as shown in Fig. 4-3-2.

Alignment 2

Mode Gear

Keeping the two tri angles pointing at each other,

install the Loading Arm (TU) A ssembl y so tha t the last tooth of the gear meets the most i nside teeth of the Mode Gear. See Fig. 4-3-2.

Triangle Marks

Loading Arm (TU) Assembly

Alignment 1

Loading Arm (SP) Assembly

Last T ooth

Alignment 2

Most inside teeth of Mode Gear(LM

Mode Gear(LM)

Fig. 4-3-2

Bottom View

Alignment 1

Alignment

Fig. 4-3-1

Alignment 3

Cam Gear (A)(HI), Rack Assembly

Install the Rack Assemb ly s o that the first tooth on the gear of the Rack Assembly meets the first groove on the Cam Gear (A )(HI) as shown in Fig . 4-3-3.

T op Vie w

First groove on the Cam Gear (A)(HI)

Cam Gear (A)(HI)

Gear on Rack Assembly

Alignment 3

First tooth

Fig. 4-3-3

4-13

Page 47

ADJUSTMENT5

5-1 PREPARATION FOR SERVICING

5-1-1 How to Enter th e Service Mode

About Optical Sensors

Caution:

An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefully read and follow the instructions below. Otherwise the unit may operate erratically.

What to do for preparation

Insert a tape into the D eck Mechanis m Assembly and press the PLAY button. The tape will be loaded into the Deck Mechanism Ass embly. Make sure the power is on, connect TP501 (SENSOR INHIBITION) to GND. This will stop the function of Tape Start S ensor, Tape End Se ns or an d Reel S en so rs. (I f th es e TP s are connected before plu gging in the unit, the function of the sensors will stay valid.) See Fig. 5-1-1.

Note: Because the Tape End Sensors are inactive, do not run a tape all the way to the start or the end of the tape to avoid tape damage.

Q503

Q50

TP501

S-INH

Fig. 5-1-1

5-1

Page 48

5-2 FIXTURE AND TAPE FOR ADJUSTMENT

1. Alignment Tape No. 7099052 (MH-2)

3. Flat Screwdriver (Purchase Locally)

2. Guide Roller Adj. Screwdriver No. 7099028

5-2-1 How To Use The Fixtures And Tape

Item No. Name Part No. Adjustment

1 Alignment Tape 7099052

2 Guide Roller Adj. Screwdriver 7099028 I Guide Roller 3 Flat Screwdriver Purchase Locally I X Value Alignment

I Head Switching Point I Tape Interchangeability Alignment

5-2

Page 49

5-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS

)

General Note: "CBA" is an abbreviation for "Circuit Board Assembly."

NOTE:

1.Electrical adjus tments are required after replacing circuit components and cert ain mechanical parts. It is important to do these adjustments only after all repairs and replacements have been completed. Also, do not attem pt thes e adj ustmen ts unles s the proper equipment is available .

2.To per form these alignment / confirmation proce dures, make sure that the tracki ng co ntrol is set in the center position: P ress ei ther "CHA NNEL L5 ??" or "CHANNEL K" b utton o n the front panel first , then the "PLAY" button on the front panel.

EXT. Syncronize Trigger Point

1.0H

6.5H±1H (416.0µs±60µs)

Figure 1

Switching Pulse

0.5H V-Syn

5-3-1 Test Equipment Required

1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.001~50V/Div., F-Range: DC~AC-20MHz

2.Alignment Tape (MH-2)

5-3-2 Head Switching Position

Adjustment

Purpose:

To determine the Head Switching point during playback.

Symptom of Mi sadjustment:

May cause Head Switchi ng noise or vertical jitter in the picture.

Test point Adj.Point Mode Input

TP751(V-OUT)

TP504(RF-SW)

GND

Tape

VR501

(Switching Point)

(MAIN CBA)

Measurement

Equipment

PLAY

(SP)

Spec.

Reference Notes:

Playback the Alignment t ape and adjust VR501 so that the V-sync front edg e of the CH1 video output waveform is at the 6.5H±1H(416.0µs±60µs) delayed position from the rising edge of the CH2 head switching pulse waveform.

-----

MH-2 Oscilloscope

Connections of Measurement Equipment

TP751

Main CBA

GND

TP504

6.5H±1H

(416.0µs±60µs)

Oscilloscop

CH1 CH Trig. (+

5-3

Page 50

5-4 MECHANICAL ALIGNMENT PROC ED UR ES

Explanation of alignme nt for the tape to correctly run starts on the next page. Refer to the information below on this page if a tape gets stuck , for example, in the mechanism due to some electrical trouble of the unit.

5-4-1 Service Information

A. Method for Manual Tape Loading/Unloading

To load a cassette tape manually:

1. Disconnect the AC plug.

2. Remove the Top Case and Front Assembly.

3. Insert a cassette tape. Though the tape will n ot be automatically loaded, make sure that the cassette tape is all the way in at the inlet of the Cassette Holder. To confirm this, lightly push the cassette tape further in and see if the tape c omes bac k out, by a spring motion, just as much as you have pushed in.

4. Turn the LDG Belt in the appropriate direction shown in Fig. 5-4-1 for a minute or two to com pl ete this task.

To unload a cassette tape manually:

1. Disconnect the AC plug.

2. Remove the Top Case and Front Assembly.

3. Make sure that the Moving guide preparations are in the Eject Position.

4. Turn the LDG Belt in the appropriate direction shown in Fig. 5-4-1 until the Moving gui de prepa rations come to the Eject Position. S top turning when the preparations begin clicking or can not be moved further. However, the tape will be left wound around the cylinder.

5. Turn the LDG Belt in the appropr iate d irectio n con tinuously, and the cassette tape will be ejected. Allow a minute or two to complete this task.

B. Method to place the Cas sette Holder in the tape-

loaded position without a cassette tape

1. Disconnect the AC Plug.

2. Remove the Top Case and Front Assembly.

3. Turn the LDG Belt in the appropriate direction shown in Fig. 5-4-1. Release the locking tabs shown in Fig. 5-4-1 and c ontinue turning the LDG Belt until the Cas sette Holder comes to the tapeloaded position. Allow a mi nute or two to compl ete this task.

Top View

Moving guide T preparation (Eject Position)

Moving guide S preparation (Eject Position)

Push the tape to load it.

Push the locking tab gently to unlock when loading without a cassette.

UNLOAD /EJECT

LOAD

Side View

LDG Belt

Fig. 5-4-1

Bottom View

5-4

LDG Belt (B)

UNLOAD /EJECT

Cam Gear

Fig. 5-4-2

Page 51

5-4-2 Tape Interchangeability Alignment

Note: To do these ali gn men t pr ocedu re s, mak e s ure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 5-7, procedure 1-C, step 2.)

Equipment required:

Dual Trace Oscilloscope VHS Alignment Tape (MH-2) Guide Roller Adj. Screwdriver Flat Screwdriver (Purchase Locally)

Note: Before starting this Mechanical Alignment, do all Electrical Adjustment procedures.

lowchart of Alignment for tape traveling

Loading (Use a blank tape.)

Not good

Adjust the height of the Guide Rollers (Supply side and take-up side). (Use a blank tape.) (Page 5-6)

1-A

Check to see that the tape is not creasing and that there is no slack on the supply and take-up side Guide Rollers. (Use a blank tape.)

1-A

Adjust the X Value for maximum envelope. (Page 5-6) (Use Alignment Tape.)

Adjust the envelope. (Page 5-7)

Check the envelope.

1-B

1-C

Adjust the Audio Section. (Azimuth Alignment) (Page 5-7)

Check the audio output.

1-D

Not good

Do the final tape-traveling test to see that the tape runs normally in play mode without creasing or slacking.

1-A

Completion

Check the following:

1. X Value (Page 5-6)

2. Envelope (Page 5-7) OK

1-B, 1-C

Not good

Adjust the X value and envelope.

1-B, 1-C

5-5

Page 52

1-A. Preliminary/Final Checking and

Alignment of Tape Path

Purpose:

To make sure that the tape path is well stabilized.

Symptom of Misalignment:

If the tape path is unstable, the tape will be damaged. Note: Do not use an Alignment Tape for this proce-

dure. If the unit is not correctl y aligned, the tape may be damaged.

1. Playback a blank cassette tape and check to see that the tape runs without creasing at Guide Rollers [2] and [3], and at points A and B on the le ad surface. (Refer to Fig. 5-4-3 and 5-4-4.)

2. If creasing is apparent, align the height of the guide rollers by turning the to p of Guide Rollers [2] and [3] with a Guide Roller Adj. Screwdrive r. (Ref er to Fig. 5-4-3 and 5-4-5.)

3. Check to see that the tape runs without creasing at Take-up Guide Post [4] or without snaking between Guide Roller [3] and A CE Head. (Fig. 5- 4-3 and 54-5)

4. If creasing or snaking is apparent, adjust the Tilt Adj. Screw of the ACE Head. (Fig. 5-4-6)

Azimuth Adj. Screw

ACE Head

Flat Screwdriver

Tilt Adj. Screw

Fig. 5-4-6

Guide Roller [2]

Take-up Guide Post [4]

Lead Surface of Cylinder

Correct

Guide Roller

Tape

Guide Roller [3]

Tape

Incorrect

ACE Head

Fig. 5-4-3

Fig. 5-4-4

1-B. X Value Alignment

Purpose:

To align the Hori zontal Position of the Audio/Control/ Erase Head.

Symptom of Misalignment:

If the Horizontal Position of the Audio/Control/Erase Head is not proper ly a ligned , m ax imu m e nv el ope ca nnot be obtained at the Neutral position of the Tracking Control Circuit.

1. Connect the oscilloscope to TP301 (C-PB) and TP503 (CTL) on the Main CBA. Use TP504 (RFSW) as a trigger.

2. Playback the Gray Scale of the Alignment Tape (MH-2) and confirm that the PB FM signal is present.

3. Set the Tracking Control Circuit to the c enter position by pressing CH UP button then “P LAY” button on the unit. (Refer to note on bottom of page 5-7.)

4. Use the Flat Screwdriver so that the PB FM signal at TP301 (C-PB) is maximum. (Fig. 5-4-6)

5. Press CH UP button on the unit until the CTL waveform has shifted by approx. + 2ms. Mak e sure that the envelope is simply attenuated (shrinks in height) during this process so that you will know the envelope has been at its peak.

5-6

Take-up Guide Post

Tape

Fig. 5-4-5

Page 53

6. Press CH DOWN butto n on the unit until the CTL waveform has shifted from its origi nal position (not the position achie ved in step 5, b ut the position of CTL waveform in step 4) by approximately -2ms. Make sure that th e envelope is simply attenuated (shrinks in heigh t) once CTL waveform passes its original position and is fur ther bro ught in the minu s direction.

7. Set the Tracking Control Circuit to the cente r position by pressing CH UP button and then “PLAY” button.

1-C. Checking/Adjustment of Envelope

Waveform

Purpose:

To achieve a satisfactory picture and precise tracking.

Symptom of Misalignment:

If the envelope output is poor, noise will appear in the picture. The tracki ng will then lose precision and the playback picture w ill be distorted by any sligh t variation of the Tracking Control Circuit.

1. Connect the oscillos cope to TP301 (C-PB) on the Main CBA. Use TP504 (RF-SW) as a trigger.

2. Playback the Gray Scale on the Alignment Tape (MH-2). Set the Tracking Control Cir cuit to the center position by pressing CH UP button and then “PLAY” button on the unit. Adjust the height of Guide Rollers [2] and [3] (Fig. 5-4-3, Page 5-6) watching the oscill oscope di splay so that the enve lope becomes as flat as possible. To do this adjustment, turn the top of the Guide Roller with the Guide Roller Adj. Screwdriver.

3. If the envelope is as shown in Fig. 5-4-7, adjust the height of Guide Roller [2] (Refer to Fig. 5-4- 3) so that the waveform looks like the one sho wn in Fig. 5-4-9.

4. If the envelope is as shown in Fig. 5-4-8, adjust the height of Guide Roller [3] (Refer to Fig. 5-4- 3) so that the waveform looks like the one sho wn in Fig. 5-4-9.

5. When Guide Rollers [2] and [3] (Refer to Fig.5 -4-3) are aligned properly, there is no envelope drop either at the beginning or end of track as shown in Fig. 5-4-9.

Dropping envelope level at the beginning of track.

Dropping envelope level at the end of track.

Fig. 5-4-8

Envelope is adjusted properly. (No envelope drop)

Fig. 5-4-9

Note: Upon completion of the adjustment of Guide Rollers [2] and [3] ( Refer to Fig. 5-4-3), check the X Value by pushing the CH UP or DOWN buttons alternately, to check the symmetry of t he en velope. Chec k the number of push es to ensure cent er position. The number of pushes CH UP button to achieve 1/2 level of envelope should matc h the number of pushes CH DOWN button from center. If required, redo the “X Value Alignment.”

1-D. Azimuth Alignment of Audio/Control/

Erase Head

Purpose:

To correct the Azimuth alignment so that the Audio/ Control/Erase Head meets tape tracks proper ly.

Symptom of Misalignment:

If the position of the Audio/Control/Erase Head is not properly aligned, the Audio S/N Ratio or Frequency Response will be poor.

1. Connect the oscilloscope to the audio ou tput jack on the rear side of the deck.

2. Playback the alignment tape (MH-2) and confirm that the audio signal output level is 8kHz.

3. Adjust Azimuth Adj. Screw so that the output level on the AC Voltmeter or the waveform on the oscilloscope is at maximum. (Fig. 5-4-6)

Fig. 5-4-7

5-7

Page 54

EXPLODED VIEWS AND PARTS LIST6

6-1 EXPLODED VIEWS

6-1-1 Cabinet Section

001

DVD MAIN CBA [CBA REPLACEMENT (ORDER FORMAT)]

A20

2L021

2L011

2B2

2B3

1B2 DVD MECHANISM [UNIT REPLACEMENT (ORDER FORMAT)]

2L021

POWER SUPPLY CBA

[COMPONENT REPLACEMENT]

2L021

F1001

JUNCTION CBA

[COMPONENT REPLACEMENT]

AC1001

DVD OPEN/CLOSE CBA

[COMPONENT REPLACEMENT]

SENSOR CBA

[COMPONENT REPLACEMENT]

FUNCTION CBA

[COMPONENT REPLACEMENT]

2B46

2B15

2L011

2B15

2L011

JACK CBA

[COMPONENT REPLACEMENT]

2L011

SENSOR CBA

[COMPONENT REPLACEMENT]

AFV CBA

[COMPONENT REPLACEMENT]

MAIN CBA

[COMPONENT REPLACEMENT]

A1X

A29

ABCDEFG

6-1

Page 55

)

6-1-2 Deck Mechanism View 1 Section 6-1-3 Deck Mechanism View 2 Section

Mark Description

Floil G-684G or Multemp MH-D SLIDUS OIL #150

(Blue grease)

B487

B587

B416

B521

B591

Mark Description

Floil G-684G or Multemp MH-D (Blue grease)

SLIDUS OIL #150 SANKOUL FG84M (Yellow grease)

B574

B518

B564

B584

B590

B522

B491

B148

B592

B31

Bottom Side (Grease point)

L1406

B525

B73

B10

B411

B567

B410

B74

B494

B35

B508

B553

B414

B572

B565

Chassis Assembly Top View (Lubricating Point)

B499

B573

B585

B417

B568

B501

B12

B121

B11

B571

B492

B37

B126

B86

Chassis Assembly Bottom View (Lubricating Point

HIJ

6-2

B578

B579

B582

B580

B583

B579

View for A

B581

B559

B516

KLM

B133

B551

B513

Bottom Side (Grease point)

B488

B507

B52

Page 56

6-1-4 Deck Mechanism View 3 Section

Mark Description

B347

B355

Floil G-684G or Multemp MH-D SLIDUS OIL #150

B354

B483

(Blue grease)

B425

B482

B562

B563

B300

B313

B529

B360

B359

B361

B555

B303

B514

NOP

6-3

Page 57

6-2 REPLACEMENT PARTS LIST

6-2-1 Mechanical Parts List

SYMBOL-NO P-NO DESCRIPTION

MECHANISM SECTION

A1X TJ17389 FRONT ASSEMBLY A2 TS18404 TOP COVER A4 TJ17391 PANEL REAR

A20 TJ16942 PANEL TRA Y A29 TJ15943 FOOT

AC1001 TJ17382 AC CORD 1B2 TS18405 DVD MECHA 2B2 TJ16877 TOP BRACKET

2B3 TJ15946 SIDE BRACKET 2B15 TJ15122 BUSH, LED(F) 2B46 TJ15314 ROHM HOLDER 2L011 TJ15952 SCREW (3X8) 2L021 TJ16882 SCREW (M3X26)

B2 TS18628 CYLINDER ASSEMBLY B3 TS18445 LOADING MOTOR ASSEMBLY B8 TS18446 PULLEY ASSEMBLY B9 TJ16892 MOVING GUIDE (S) PREPARATION B10 TJ16893 MOVING GUIDE (T) PREPARATION

B11 TJ16894 LOADING ARM(TU) ASSEMBLY B12 TJ16895 LOADING ARM(SP) ASSEMBLY B31 TS18415 AC HEAD ASSEMBLY B35 TS18416 TAPE GUIDE ARM ASSEMBLY B37 TJ16956 CAPSTAN MOTOR

SYMBOL-NO P-NO DESCRIPTION

B487 TJ16911 BAND BRAKE(SP) B488 TJ17198 MODE LEVER B491 TJ16946 CAM GEAR(A) B492 TJ17199 MODE GEAR B494 TJ16915 CASSETTE DOOR OPENER

B499 TJ16916 T LEVER HOLDER B501 TJ16917 WORM HOLDER B507 TJ14034 REEL WASHER B508 TJ16947 BRAKE SPRING(S) B513 TJ10229 CAM WASHER

B514 TJ15202 SCREW RACK B516 TJ14034 REEL WASHER B518 TJ15203 WASHER B521 TJ16948 REV BRAKE SPRING B522 TJ15206 TG POST ASSEMBLY

B525 TJ16001 LDG BELT B529 TJ15106 CLEANER ASSEMBLY B551 TJ16949 FF ARM(HI) B553 TJ16003 REV SPRING B555 TS18422 RACK ASSEMBLY

B559 TS18452 CLUTCH ASSEMBL Y B562 TJ16924 CASSETTE DRIVE LEVER B563 TJ16925 SLIDER SHAFT B564 TJ16951 M GEAR B565 TJ16952 SENSOR GEAR

B52 TJ15161 CAP BELT B73 TS17449 FE HEAD ASSEMBLY B74 TJ15163 PRISM B86 TS18447 F BRAKE ASSEMBLY B121 TJ168 96 WORM

B126 TJ17196 PULLEY B133 TS18448 IDLER ASSEMBLY B148 TE126 12 TG CAP B300 TJ16901 CASSETTE DRIVE LEVER(TU) B303 TJ16902 F DOOR OPENER

B313 TJ16903 CASSETTE DRIVE SPRING B347 TJ15987 GUIDE HOLDER A B354 TJ17197 SLIDER(TU) B355 TJ17386 SLIDER(SP) B359 TJ15103 CLEANER LEVER

B360 TJ15104 CLEANER ROLLER B361 TJ15105 CL POST B410 TJ17387 PINCH ARM ASSEMBLY B411 TJ16906 PINCH SPRING B414 TS18449 M BRAKE(SP) ASSEMBLY

B416 TS18451 M BRAKE(TU) ASSEMBLY B417 TJ16944 TENSION SPRING B425 TJ15185 LOCK LEVER SPRING B482 TJ16908 CASSETTE PLATE B483 TJ16909 LOCK LEVER

B567 TJ16928 PINCH ARM(B) B568 TJ16929 BT ARM B571 TJ15203 WASHER B572 TJ15203 WASHER B573 TJ16007 REEL (S)

B574 TJ16008 REEL (T) B578 TJ15306 TR GEAR A B579 TJ16953 TR GEAR B B580 TJ17388 TR GEAR C B581 TJ16172 CENTER GEAR

B582 TJ15311 TR GEAR SPRING B583 TJ16919 CAM WASHER B584 TJ15312 TR GEAR SHAFT B585 TJ16039 WASHER B587 TS18424 TENSION LEVER ASSEMBLY

B590 TJ17202 BRAKE ARM(TU) B591 TJ16935 BAND BRAKE(TU) B592 TJ16955 TG POST L1406 TJ15238 AC HEAD SCREW 001 TJ17394 DVD MAIN CBA UNIT

ACCESSORIES

X1 TS18356 REMOTE CONTROL UNIT X3 TJ14683 RF CORD X6 TJ15698 AV CORD

6-4

Page 58

6-2-2 Electrical Parts List

Note: Although some parts in the schematic diagrams have different names from those in

the parts list, there is no problem in replacing parts.

SYMBOL-NO P-NO DESCRIPTION

RESISTOR

VR501 TA14561 CARBON P.O.T . 100K OHM B

SEMI-CONDUCTORS

D555 TJ13898 LED SIR-563ST3F Q D501 TJ15414 LED(RED) 204HD/E D502 TC12491 LED(GREEN) 204-10GD/S957 D503 TC12491 LED(GREEN) 204-10GD/S957 D504 TJ15414 LED(RED) 204HD/E

D592 TJ15414 LED(RED) 204HD/E D593 TJ15414 LED(RED) 204HD/E IC1 TC12622 IC MSP3417G-QG-B8 IC301 TC12616 IC LA71750EM-MPB-E IC451 TC12731 IC LA72648M-MPB-E

IC501 TJ17396 IC M37762MCA-AD0GP IC502 TJ15338 IC BR24C02F-W IC611 TE15471 IC 7-BT-292GN IC612 TC12684 IC PT6313-S-TP IC751 TC12531 IC TC4053BF(N)

IC1001 TC12221 PHOTOCOUPLER EL817B IC1051 TC12682 VOLTAGE REGULATOR PQ070XF01SZ IC1052 TC12682 VOLTAGE REGULATOR PQ070XF01SZ IC1201 TC12251 IC KIA4558P IC1204 TC12261 TRANS.MODULE 0C-0805T*002

SYMBOL-NO P-NO DESCRIPTION

CN1 TE15287 ANGLE PIN HEADER 9P CN701 TS17736 AFV PCB ASSEMBLY CN1051 TE15481 FMN CONNECTOR 22P CN1601 TE1511 1 FMN CONNECTOR 18P

F1001 TJ14705 FUSE T1.6AL/250V

FH1001 TE11084 FUSE HOLDER FH1002 TE11084 FUSE HOLDER JK751 TE15133 RCA JACK JK752 TJ15136 RCA JACK(YELLOW) JK1202 TE15134 RCA JACK(BLACK)

JK1401 TE14821 S TYPE JACK JW009 TE15239 FLAT CABLE, 2P SW501 TE11957 TACT SWITCH SW506 TE15484 LEAF SWITCH SW507 TE15485 ROTARY MODE SWITCH

SW591 TE11957 TACT SWITCH SW592 TE11957 TACT SWITCH SW593 TE11957 TACT SWITCH SW594 TE11957 TACT SWITCH SW595 TE11957 TACT SWITCH

SW601 TE11957 TACT SWITCH SW602 TE11957 TACT SWITCH SW603 TE11957 TACT SWITCH SW2020 TE11957 TACT SWITCH SW2021 TE11957 TACT SWITCH

IC1402 TC12661 IC MM1567AJBE Q1001 TJ17383 FET 2SK3566 PS502 TJ15282 PHOTO INTERRUPTER RPI-302C70 RM2001 TC12331 REMOTE RECEIVER PIC-37043LU

TRANSFORMER

T001 TJ17384 SWITCHING TRANSFORMER

COILS

L101 TA12575 BEAD CORE L102 TA12575 BEAD CORE

L1001 TA12575 BEAD CORE L1002 TA12575 BEAD CORE

L1003 TJ17398 LINE FILTER 56MH L1004 TA12575 BEAD CORE J9 T A12575 BEAD CORE

J922 TA12575 BEAD CORE

COILS

X1 TC12623 X'TAL 18.432MHZ X301 TJ14708 X'TAL 4.433619MHZ

X501 TE15284 X'TAL 12.000MHZ X502 TJ15148 X'TAL 32.768KHZ(20PPM)

SW2022 TE11957 TACT SWITCH TU701 TJ17397 TUNER UNIT TMDG2-731A

MISCELLANEOUS

6-5

Page 59

SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS

1 WIRING DIAGRAMS

1-1 VCR Section

FUNCTION CBA

(DECK ASSEMBLY)

ACE HEAD ASSEMBLY

AUDIO

ERASE HEAD

AUDIO HEAD

CONTROL HEAD

FE HEAD

FULL ERASE HEAD

CYLINDER ASSEMBLY

PG SENSOR

DRUM MOTOR

Hi-Fi AUDIO (R) HEAD

Hi-Fi AUDIO (L) HEAD

VIDEO (R)1 HEAD

VIDEO (L)1 HEAD

VIDEO (L)2 HEAD

VIDEO (R)2 HEAD

CL287

AE-H

AE-H/FE-H

A-COM

A-PB/REC

CTL(+)

CTL(-)

LOADING MOTOR

1 2 3 4 5 6

CL591 JW007

1 GND

KEY-1

2 3 AL+5V(1) 4

POWER-LED

CAPSTAN MOTOR

CL505 1 2 3 4

CL504

AE-H

AE-H/FE-H2 A-COM3 A-PB/REC4 CTL(+)5 CTL(-)6

CL501

FE-H2 FE-H GND1

CL502

1 AL+20.5V/+12V 2 P-ON+5V 3 C-FG

C-F/R

C-CONT

GND

LM-FWD/REV

D-CONT

D-PFG

GND

AL+12V(2)

P-ON+15V

CL251

V(R)-11 V-COM2

3 V(L)-1

V(L)-2

V-COM5 V(R)-26 Hi-Fi-A(R)7 Hi-Fi-COM8 Hi-Fi-A(L)9

JK101

CL2017

VIDEO IN

JW008

1 A-OUT2(R)

A-OUT2(L)

2 3 GND 4

A-IN2(R) A-IN2(L)5 SC2-IN

AL+12V

V-OUT28 GND9 9 V-IN2 10

CL001

1 2 3 4 5 6 7 8 9

CL002

1 2 3 4 5 6 7 8 9

REAR

AUDIO OUT (R)

CN003CL001

FRONT

AUDIO OUT(R)

AUDIO OUT (L)

CL002

S-VIDEO OUT

JW005

1AL+44V 2GND 3AL+12V 4GND 5AL+5V(P-DOWN)

7GND 8AL+20.5V 9GND

JW006

1AL-30V 2GND 3AL+1.5V 4GND 5AL+3.3V 6GND 7P-OFF-H 8F2 9F1

DIGITAL AUDIO OUT

POWER SUPPLY CBA JUNCTION CBA

AC CORD

DVD OPEN/ CLOSE CBA

JACK CBA

CL2018 1 2 3 4 5 6 7 8

JK1402

AFV CBA

SENSOR CBA

AUDIO OUT (L)

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18

JW009

1 OPEN/CLOSE21

GND

1 NU

SIF

2 3 GND 4

TU-AUDIO(R)

TU-AUDIO(L)5

P-ON+5V

IIC-BUS SCL8

IIC-BUS SDA9

1 AL+44V 2 GND 3 AL+12V 4 GND

5 AL+5V(P-DOWN)

6 AL+5V6AL+5V 7 GND 8 AL+20.5V 9 GND

10 AL-30V 11 GND 12 AL+1.5V 13 GND 14 AL+3.3V 15 GND 16 P-OFF-H 17 F2 18 F1

ANT-IN ANT-OUT

CN050

CL2015CL2016

CN701CN1 1 2 3 4 5 6 7 8 9

MAIN CBA

CN1051 EV+1.5V EV+1.5V EV+1.5V EV+3.3V EV+3.3V

GND GND GND GND GND GND GND

P-ON+5V

EV+9V EV+9V

FP-STB

P-ON+3.3V

FP-DIN

PWRCON

OUT-SEL

FP-CLK

REMOTE-DVD

CN1601

VIDEO-Y

ASPECT

VIDEO-R

GND

VIDEO-B

GND

VIDEO-G

GND

VIDEO-C

GND GND

DVD-A-MUTE

DVD-A(L)

DVD-A(L)-MUTE

DVD-A(R)

DVD-A(R)-MUTE

AUDIO+5V

SPDIF

CN2014

PLAY

STOP

POWER

OPEN/CLOSE 1

1 2 3 4 5 6 7 8 9

TO DVD MAIN

CBA CN401

(JW001)

13 14 15 16 17 18 19 20 21 22

1 2 3 4 5 6 7 8

TO DVD MAIN

CBA CN601

(JW002) 11 12 13 14 15 16 17 18

TO DVD MAIN

CBA CN302

(JW003)

TO WIRING DIAGRAM <DVD SECTION>

Page 60

1-2 DVD Section

DVD MECHANISM

FG SENSOR

FG CBA

SPINDLE MOTOR

SLED MOTOR

CN401

GND

GND GND GND GND GND GND

GND

GND GND

SPDIF

PLAY

STOP

1 2 3 4 5 6 7 8

9 10 11

TO MAIN CBA

CN1051

(JW001)

14 15 16 17 18 19 20 21 22

TO MAIN CBA CN1601

(JW002)

11 12 13 14 15 16 17 18

TO MAIN CBA

CN2014

(JW003)

TO WIRING DIAGRAM <VCR SECTION>

EV+1.5V EV+1.5V

TRAY-OUT

CN301

FG-IN

TRAY-IN

P-ON+3.3V(D)

SP(+)

SP(-)

TRAY-OUT

TRAY-IN

GND 8 SL(-) 9 SL(+)

DRIVE CBA

EV+1.5V EV+3.3V EV+3.3V

P-ON+5V

EV+9V EV+9V

FP-STB

P-ON+3.3V

FP-DIN

PWRCON

OUT-SEL

FP-CLK

REMOTE-DVD

DVD MAIN CBA

CN601

VODEO-Y

ASPECT

VIDEO-R

VIDEO-B

VIDEO-G

VIDEO-C

DVD-A-MUTE

DVD-A(L)

DVD-A(L)-MUTE

DVD-A(R)

DVD-A(R)-MUTE

AUDIO+5V

CN302

POWER

OPEN/CLOSE

DETECTOR

CN201

GND

1 2 E

P-ON+5V

VREF

2 3 5 6 4 7

FSTS

5 B 6 C

7 8 A

CD/DVD

GND(LD)

CD-LD

PD-MONI

DVD-LD

GND(DVD-PD)

GND(CD-PD)

TS(-)

FS(+)

FS(-)

TS(+)

PICK UP UNIT

Page 61

2 SCHEMATIC DIAGRAMS

2-1 Main 1/9 Schematic Diagram

Page 62

2-2 Main 2/9 & Sensor Schematic Diagrams

Note:

When it is necessary to replace one or more of the following Diodes, all four should be replaced: D501, D502, D503, D504.

Page 63

2-3 Main 3/9 Schematic Diagram

Page 64

2-4 Main 4/9 Schematic Diagram

Page 65

2-5 Main 5/9 Schematic Diagram

Page 66

2-6 Main 6/9 Schematic Diagram

Page 67

2-7 Main 7/9 Schematic Diagrams

Page 68

2-8 Main 8/9 & DVD OPEN/ CLOSE Schematic Diagrams

Page 69

2-9 Main 9/9 Schematic Diagrams

Page 70

2-10 Power Supply & Junction Schematic Diagrams

CAUTION !

For continued protection against fire hazard, replace only with the same type fuse.

NOTE :

The voltage for parts in hot circuit is measured using hot GND as a common terminal.

CAUTION !

Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

Page 71

2-11 Jack Schematic Diagram

Page 72

2-12 Function Schematic Diagrams

Note:

When it is necessary to replace one or more of the following Diodes, all one should be replaced: D592, D593.

Page 73

2-13 AFV Schematic Diagram

Page 74

2-14 DVD Main 1/3 Schematic Diagram

Page 75

2-15 DVD Main 2/3 Schematic Diagram

Page 76

IC101 VOLTAGE CHART

PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP

129 2.0 2.0 161 0. 5 0.5 193 ~ ~ 225 1.9 1.9

130 2.2 2.2 162 1. 4 1.4 194 0 0 226 3. 3 3.3

131 2.3 2.3 163 ----- ----- 195 3.3 3. 3 227 ~ ~

132 0.4 0.1 164 0. 9 0.9 196 ~ ~ 228 ~ ~

133 1.2 0.4 165 3. 3 3.3 197 ~ ~ 229 ~ ~

134 0.4 0.1 166 1. 5 1.5 198 0 0 230 0 0

135 0.2 0.2 167 0 0 199 ~ ~ 231 ----- -----

136 2.3 2.3 168 2. 1 2.1 200 ~ ~ 232 3.3 3.3

137 1.7 1.7 169 0 0 201 ~ ~ 233 3. 3 3.3

138 0 0 170 0.8 0. 8 202 3.3 3.3 234 1. 6 1.6

139 1.7 1.7 171 3. 3 3.3 203 ~ ~ 235 ~ ~

140 1.7 1.7 172 1. 6 1.6 204 ~ ~ 236 0 0

141 1.7 1.7 173 ----- ----- 205 ~ ~ 237 1.7 1.7

142 1.7 1.7 174 1. 8 1.8 206 0 0 238 3. 0 3.0

143 0.5 0.5 175 1. 7 1.7 207 2.4 3. 5 239 3.3 3.3

144 1.6 1.6 176 1. 4 0.1 208 2.4 2. 1 240 3.3 3.3

145 3.3 3.3 177 0 0 209 3.3 3.3 241 0 0

146 0 0 178 ----- ----- 210 ~ ~ 242 3.2 3. 2

147 ----- ----- 179 ----- ----- 211 0 0 243 2. 4 2.1

148 ----- ----- 180 ----- ----- 212 ~ ~ 244 1.5 1. 5

149 3.3 3.3 181 1. 7 1.7 213 1.5 1. 5 245 0 0

150 1.7 1.7 182 3. 3 3.3 214 ~ ~ 246 2.4 2.1

151 0 0 183 0 0 215 0 0 247 ~ ~

152 1.7 1.7 184 ~ ~ 216 ~ ~ 248 0 0

153 3.3 3.3 185 ~ ~ 217 ~ ~ 249 ~ ~

154 1.4 1.4 186 1. 5 1.5 218 3.3 3. 3 250 3.3 3.3

155 0 0 187 ~ ~ 219 ~ ~ 251 ~ ~

156 2.2 2.2 188 ~ ~ 220 ~ ~ 252 ~ ~

157 3.3 3.3 189 3. 3 3.3 221 0 0 253 ~ ~

158 0.7 0.7 190 ~ ~ 222 1.5 1. 5 254 0 0

159 0 0 191 ~ ~ 223 1.9 1.9 255 ~ ~

160 0.5 0.5 192 ~ ~ 224 0 0 256 ~ ~

PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP

1 3.33.3332.22.9650.10.1973.43.4

2 ~ ~ 34 ~ ~ 661.22.5981.61.6

3 ~ ~35~ ~671.61.6990 0

4 0 0 36 ~ ~ 68 3.4 3.4 100 ----- -----

5 ~ ~ 37 ~ ~ 69 0 0 101 ----- -----

6 ~ ~ 38 0.3 0. 5 70 1.7 1. 7 102 ----- -----

7 3.3 3. 3 39 0.1 0.1 71 2.4 1.7 103 ----- -----

8 ~ ~ 40 ~ ~ 72 ----- ----- 104 3. 3 3. 3

9 ~ ~ 41 ~ ~ 73 ----- ----- 105 0. 9 0. 9

10 ~ ~ 42 3.3 3.3 74 ----- ----- 106 0 0

11 0 0 43 0 0 75 3.4 3.4 107 0.8 0. 8

12 ~ ~ 44 ~ ~ 76 ----- ----- 108 1. 6 1. 6

13 ~ ~ 45 ~ ~ 77 ----- ----- 109 2. 1 2. 1

14 3.3 3.3 46 2.0 2.6 78 0.1 0.1 110 2.6 2. 6

15 1.5 1.5 47 3.3 3.4 79 3.3 3.3 111 2.0 2. 0

16 0 0 48 3.2 3.4 80 0 0 112 0.7 0.9

17 3.4 3.4 49 ----- ----- 81 ----- ----- 113 0 0

18 3.4 3.4 50 3.4 3.4 82 ----- ----- 114 1.8 1.8

19 ~ ~ 51 3.4 3.4 83 ----- ----- 115 1. 4 1. 4

20 ~ ~ 52 ----- ----- 84 ----- ----- 116 0.3 0. 3

21 ~ ~ 53 3.4 3.4 85 ----- ----- 117 1. 6 1. 6

22 ~ ~ 54 3.4 3.4 86 ----- ----- 118 3. 3 3. 3

23 3.3 3.3 55 3.3 3.3 87 ----- ----- 119 0 0

24 0 0 56 3.3 3.3 88 ----- ----- 120 1. 9 1. 9

25 0.4 0.4 57 0 0 89 ----- ----- 121 1.9 1. 9

26 0.9 0.6 58 0 0 90 ----- ----- 122 2.4 2. 4

27 ~ ~ 59 3.3 3.3 91 3.3 3.3 123 2.4 2.4

28 ~ ~ 60 3.4 3.4 92 1.7 1.5 124 2.4 2.4

29 3.3 3.3 61 3.1 3.1 93 0 0 125 2.4 2. 4

30 0 0 62 3.2 3.4 94 ----- ----- 126 2. 0 2. 0

31 ~ ~ 63 3.4 3.4 95 3.4 0.1 127 2.0 2.0

32 ~ ~ 64 0.8 0.8 96 3.4 3.4 128 2.0 2.0

Page 77

2-16 DVD Main 3/3 Schematic Diagram

Page 78

3 WAVEFORMS

WF2

UPPER

(TP301 of Main CBA)

WF1

LOWER

(TP504 of Main CBA)

C-PB 10mV x 10 RF-SW 0.5V x 10

5msec

WF3

UPPER

(TP751 of Main CBA)

WF1

LOWER

(TP504 of Main CBA)

WF4 Pin 1 of CN1601

VIDEO-Y 0.2V 20µsec

WF5 Pin 9 of CN1601

WF7

Pin 13 of CN1601

AUDIO-L

WF8

Pin 15 of CN1601

NOTE:

Input CD: 1kHz PLAY (WF7~WF9) DVD: POWER ON (STOP) MODE (WF4~WF6)

1V 0.5msec

V-OUT 0.1V x 10 RF-SW 0.5V x 10

50usec

WF3

(TP751 of Main CBA)

V-OUT E-E 10usec 50mV x 10

VIDEO-C 0.2V 20µsec

WF6 Pin 31 of IC1402

VIDEO-CVBS 0.5V 20µsec

AUDIO-R

WF9

Pin 18 of CN1601

SPDIF

1V 0.1µsec

Page 79

4 CIRCUIT BOARD DIAGRAMS

4-1 Main CBA Top View & Sensor CBA Top View

Sensor CBA Top View

WF2

TP301

C-PB

WF3

TP751 V-OUT

WF1

TP504

RF-SW

VR501

SW-P

TP503

CTL

TP501

S-INH

Page 80

4-2 Main CBA Bottom View

Page 81

4-3 Function CBA Top/Bottom View & DVD OPEN/CLOSE CBA Top/Bottom View

Function CBA Top View

Function CBA Bottom View

DVD OPEN/CLOSE CBA Top View DVD OPEN /CLOSE CBA Bottom View

Page 82

4-4 Power Supply CBA Top/Bottom View & Junction CBA Top/Bottom View

Power Supply CBA Top View

CAUTION !

For continued protection against fire hazard, replace only with the same type fuse.

NOTE :

The voltage for parts in hot circuit is measured using hot GND as a common terminal.

Power Supply CBA Bottom View

CAUTION !

BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. ALSO , IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT SLOWLY , WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY CIRCUIT , A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.

Junction CBA Top View Junction CBA Bottom View

Page 83

4-5 JACK CBA Top/Bottom View & AFV CBA Top/Bottom View

Jack CBA Top View

Jack CBA Bottom View

AFV CBA Top View AFV CBA Bottom View

Page 84

5 BLOCK DIAGRAMS

5-1 Servo/System Control Block Diagram

(DECK ASSEMBLY)

SW507

ACE HEAD ASSEMBLY

CONTROL HEAD

Q504

ST-S

SENSOR CBA

CL287

CL504

5 5CTL(+) 6 6CTL(-)

LD-SW

TP502

END-S

AL+5V

Q506

T-REEL

PS502

S-REEL

D555 S-LED

AL+5V

TIMER+5V

MAIN CBA

Q515

RESET

IC501

(SERVO/SYSTEM CONTROL)

KEY- 2

KEY- 1

POWER-LED

LD-SW

CTL(+) CTL(-)

94 10

ST-S END-S T-REEL

S-REEL79

RESET

TIMER-LED

DVD-LED

VCR-LED

REC-LED

TP501

S-INH

KEY

8 7

SWITCH

Q507

Q502

Q508

Q509

Q511

D501

D502

D503

D504

TIMER

DVD

VCR

REC

CL505

2 2KEY-1 4 4

POWER-LED

AL+5V

CL591

FUNCTION CBA

KEY SWITCH

D592, D593

POWER

AL+5V

Q503

END-S

SENSOR CBA

CYLINDER ASSEMBLY CAPSTAN MOTOR

DRUM MOTOR

SENSOR

CAPSTAN MOTOR

MLOADING

MOTOR

CL502

AL+20.5V/+12V

2 P-ON+5V 3 C-FG

C-F/R

C-CONT

GND

LM-FWD/REV

D-CONT

D-PFG

GND

AL+12V(2)

P-ON+15V

TO DVD SYSTEM CONTROL BLOCK <DVD SECTION>

AL+5V

VR501 SW-POINT

TO POWER SUPPLY BLOCK

REMOTE-VIDEO

Q510

AL+5V

SW506

REC-SAFETY

AL+20.5V/+12V P-ON+5V

AL+12V(2) P-ON+15V

C-POW-SW P-ON-H P-DOWN-L

P-OFF-H

TP503

CTL

REMOTE-VIDEO

CTL97

FF/REW-L84

PG-DELAY

REC-SAF-SW

C-FG

C-F/R

C-CONT

LM-FWD/REV

D-CONT77

D-PFG

C-POW

-SW P-ON-H

67 86 P-DOWN-L 73 P-OFF-H

DRV-DATA

DRV-STB DRV-CLK

DVD-POWER

A-MUTE-H

Hi-Fi-H-SW

A-MODE

LINE-MUTE

IIC-BUS SDA

IIC-BUS SCL

D-REC-H

RF-SW

C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

OUTPUT-SELECT

C-SYNC

68 69 70 21

19 32

72 71

33 18 15

13 16 17

74 58

DRV-DATA

DRV-STB DRV-CLK

DVD-POWER

IC502 (MEMORY)

SDA

SCL

IIC-BUS SDA IIC-BUS SCL

A-MUTE-H

IIC-BUS SDA IIC-BUS SCL

Hi-Fi-H-SW

A-MODE

OUTPUT SELECT

LINE-MUTE

IIC-BUS SDA IIC-BUS SCL

D-REC-H

RF-SW

C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

OUTPUT-SELECT

V-ENV

C-SYNC

TO DVD SYSTEM CONTROL BLOCK <DVD SECTION>

TO AUDIO BLOCK

TO Hi-Fi AUDIO BLOCK

TO VIDEO BLOCK

Page 85

5-2 Video Block Diagram

TU701

JK752 V-IN-F

TO DVD VIDEO /AUDIO BLOCK <DVD SECTION>

V-IN2

19 20

V-OUT2

JK1402

VIDEO

TU-VIDEO

DVD-VIDEO

CL2018

BUFFER

Q103

V-OUT1

V-IN1

V-OUT2 V-IN2

10 10

19 20

JK101

CL2017

IC501 (OSD)

Q301

BUFFER

IC301

(Y/C SIGNAL PROCESS)

48 50 52 54 56

61 63

OSD CHARACTER MIX

TUNER

IN1

IN2

FRT

IN2

FRT

PB/EE

MUTE

TUNER

IN1

PB/EE

MUTE

BYPASS

IIC-BUS SDA

IIC-BUS SCL

6968

46 43

SERIAL

DECORDER

AGC

LUMINANCE SIGNAL PROCESS

CHARA. INS.

CCD 1H DELAY

1/2

CHROMINANCE

FBC

SIGNAL PROCESS

Y/C MIX

AGC VXO

TO SERVO/SYSTEM CONTROL BLOCK

Y. DELAY

R P R P

REC-VIDEO SIGNAL

MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL

MAIN CBA

7978

(DECK ASSEMBLY)

CL251

SP HEAD AMP

96 95 94 93

V-COM

V(L)-1

V(L)-2

V-COM

V(R)-2

V(R)-1

REC FM

AGC

HEAD AMP

D-REC-H

RF-SW/C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

89 88 87

70 62 71 83 84

C-SYNC 67

WF1

TP504

RF-SW

D-REC-H

RF-SW

C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

C-SYNC

1 2 3 4 5 6

TO SERVO/SYSTEM CONTROL BLOCK

CYLINDER ASSEMBLY

VIDEO (R)-1 HEAD

VIDEO (L)-1 HEAD

VIDEO (L)-2 HEAD

VIDEO (R)-2 HEAD

JACK CBA

Q104

BUFFER

IC751 (SW)

SW CTL

DVD VCR

11109

5 3

Q752

TP751

V-OUT

WF3

OUTPUT-SELECT

58 59

TO SERVO/SYSTEM CONTROL BLOCK

X301

4.43MHz

2928

TP301

C-PB

WF2

Page 86

5-3 Audio Block Diagram

PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC

MAIN CBA

TO Hi-Fi AUDIO BLOCK

(DECK ASSEMBLY)

ACE HEAD ASSEMBLY

AUDIO HEAD

AUDIO ERASE HEAD

N-A-PB N-A-REC

CL287

A-PB/REC 4

A-COM 3

AE-H 1

AE-H/FE-H 2

CL504 4 A-PB/REC 3 A-COM 1 AE-H 2 AE-H/FE-H

Q404

Q403

BIAS OSC

+5V

Q406

IC301

(AUDIO SIGNAL PROCESS) 1513 17

TUNER IN2

INV

ATT

REC AMP

5 6

1 2

PB-ON

EQ AMP

SP/LP-ON

AUTO BIAS

100

IN1

ALC

DET

ALC

LINE AMP

REC-ON

MUTE

FULL ERASE HEAD

FE HEAD

CL501 2 FE-H 1 FE-H-GND

Q401 (PB=ON)

Q405

SWITCHING D-REC-OFF

+5V

AUDIO HD-SW CONTROL

SERIAL

DECODER

68 69

A-MUTE-H

IIC-BUS SDA TO SERVO/SYSTEM

IIC-BUS SCL

CONTROL BLOCK

Page 87

5-4 Hi-Fi Audio Block Diagram

A-IN2(R) A-IN2(L) A-OUT2(R) A-OUT2(L)

A-OUT1(R) A-OUT1(L) A-IN1(R) A-IN1(L)

REAR

TU701

AUDIO

A-OUT(R)

A-OUT(L)

JK753 A-IN(L)-F

JK754 A-IN(R)-F

SIF

JK1402

2 6 1 3

1 3 2 6

JACK CBA

JK101

JK751

SIF

TO AUDIO BLOCK

A-IN2(R) A-IN2(L)

A-OUT2(R) A-OUT2(L)

AFV CBA

IF SINAL PROCESS

CL2017CL2018

4 5

N-A-REC

N-A-PB

TU-AUDIO(R) TU-AUDIO(L)

REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC

MAIN CBA

Q107

BUFFER

Q108

BUFFER

IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)

67 65

LIM DEV

SW NOISE

COMP

VCO

OUTPUT SELECT

HOLD PULSE

NOISE DET

VCO

COMP

ALC

62 70

61 71

52 56

58 60

CN701CN1CN701 CN1

4 5

78 80

R-CH INSEL

2 6

L-CH INSEL

NOR SW

R-CH PNR

L-CH PNR

IC751 (SW)

SW CTL

R-CH BPF

LPF

MIX

LPF

L-CH BPF

VCR DVD

11109

13 12

1 2

Q752

OUTPUT-SELECT

COMP

LIM

DVD-A(R)

DVD-A(L)

SERIAL DATA DECODER

DO DET

34 33

TO SERVO /SYSTEM CONTROL BLOCK

TO DVD VIDEO /AUDIO BLOCK <DVD SECTION>

ENV DET

MUTE-ON

39 75 53

DVD AUDIO SIGNAL

Q451

CL251

Hi-Fi-A(R) 7

Hi-Fi-COM 8

Hi-Fi-A(L) 9

IIC-BUS SDA

IIC-BUS SCL

A-MODE

TO SERVO/ SYSTEM CONTROL BLOCK

Hi-Fi-H-SW

LINE-MUTE

(DECK ASSEMBLY)

CYLINDER ASSEMBLY

Hi-Fi AUDIO (R) HEAD

Hi-Fi AUDIO (L) HEAD

Page 88

5-5 Power Supply Block Diagram

AC1001

NOTE : The voltage for parts in hot circuit is measured using hot GND as a common terminal.

HOT CIRCUIT. BE CAREFUL.

F1001 T1.6AL/250V

L1003

LINE

FILTER

D001 - D004

RECTIFIER

BRIDGE

Q1001

T001

CAUTION

FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.

CL001 CL001 CN050

1 AL+44V 3 AL+12V 5 AL+5V 6 AL+5V 8 AL+20.5V

CAUTION !

Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. If Main Fuse (F001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the power supply circuit to fail.

Q053,Q054

SW+44V

CN003

1 3 5 6 8

10 12 14 18 17 16

8 10 12 14 18 17 16

Q055

SW+9V

Q056

SW+5V

Q057

Q058

SW+5V

Q059

P-ON+44V

P-ON+15V

P-ON-H

AL+12V

AL+9V

AL+5V

P-ON+5V

TIMER+5V

HOT

Q1008

Q1003

IC1001

ERROR VOLTAGE DET

Q1009

(SHUNT REGULATOR)

REG

IC1051

+1.5V

REG.

+3.3V REG.

IC1052

COLD

CL002 CL002

1 AL-30V 3 AL+1.5V 5 AL+3.3V 9 F1 8 7 P-OFF-H

1 3 5 9 8F2 7

JUNCTION CBA

Q051,Q052

SW+12V

Q1053, Q1054

SW+20.5V

Q1052

MAIN CBAPOWER SUPPLY CBA

Q1055

SW+5V

SW+3.3V

P-DOWN-L

AL+20.5V/+12V

C-POW-SW

AL-30V

CN1051

1 EV+1.5V 2 EV+1.5V 3 EV+1.5V 4 EV+3.3V

5 EV+3.3V 13 P-ON+5V 14 EV+9V 15 EV+9V 17 P-ON+3.3V 19 PWRCON

EV+5V

DVD P-ON+5V

DVD P-ON+3.3V

DVD P-ON+12V

-FL

F2 P-OFF-H

Page 89

5-6 DVD System Control/Servo Block Diagram

TO DVD VIDEO/ AUDIO BLOCK DIAGRAM

PICK-UP UNIT

TRAY-OUT

FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL

IC451

(CLOCK GENERATOR)

MULTI

1/4

PLL

1/4

PLL2

IC301

(SERVO DRIVE)

FOCUS ACTUATOR DRIVE

TRACKING ACTUATOR DRIVE

PCM-SCLK A-MUTE ADAC-MD ADAC-MC ADAC-ML

FSTS

FS(+) 18

FS(-) 19

TS(+) 20

TS(-) 17

CN201

15 16

14 13

SLED SERVO SIGNAL SPINDLE SERVO SIGNAL

IC101

(MICRO CONTROLLER)

EXT CLOCK

172

CLK33M BE CLOCK

170

X451

X'TAL OSC

36.864MHz OSC

25 24

2 3

1792FSEL

A-MUTE ADAC-MD

51 50 ADAC-MC 96 ADAC-ML

OPEN/CLOSE

152

FOCUS DRIVE

TRACKING

150

DRIVE

POWER

POFLT

AD2

PLAY

STOP

114

146

48 47 61 94

IC202

(OP AMP)

3 1

CN302 CN2014

PLAY 1

STOP 2

POWER 3

OPEN/CLOSE

DVD OPEN/CLOSE SW CBA

CL2015 CL2016

2 GND 1

OPEN/CLOSE

EV+3.3V

Q1505

IC612

(FIP DRIVER)

2 1

DVD-POWER

SW2020

OPEN/CLOSE

SW2022

PLAY

SW2021

STOP

FROM SERVO/SYSTEM CONTROL BLOCK DIAGRAM <VCR SECTION>

IC611

GRID FIP

SPINDLE MOTOR

SLED MOTOR

FG CBA

FG SENSOR

TRAY-IN

CN3002 CN301

DRIVE CBA

SPINDLE

MOTOR DRIVE

SLED

MOTOR DRIVE

3SP(+) 4SP(-) 5TRAY-OUT 6TRAY-IN 7GND 8SL(-) 9SL(+) 1FG-IN

IC202

(OP AMP)

12 14

+3.3V

IC461

RESET

5 4

97 60 66

SPDL71

SLD70

RESET68

TRAY-OUT TRAY-IN FG-IN

FP-STB

FP-CLK

REMOTE-DVD

59 54FP-DIN 53 61

CN401 CN1001

FP-STB 16

FP-DIN 18

FP-CLK 21

REMOTE-DVD 22

RM2001

REMOTE SENSOR

FP-STB FP-DIN FP-CLK

REMOTE-VIDEO DRV-CLK DRV-DATA DRV-STB

SEGMENT

TO SERVO/SYSTEM CONTROL BLOCK DIAGRAM <VCR SECTION>

DVD MAIN CBA MAIN CBA

Page 90

5-7 Digital Signal Process Block Diagram

IC102 (SDRAM) IC101 (MICRO CONTROLLER)

DETECTOR

SDRAM

C 6 D 7 A 8 B 5

F 10

E 2

CD/DVD 9

~~~

CN201

210

235

184

205

247

256

124 125 122 123 128 129 126 127 131 130

SDRAM ADDRESS(0-10)SDRAM ADDRESS(0-10)

~~~

SDRAM DATA(0-31)SDRAM DATA(0-31)

RF SIGNAL PROCESS CIRCUIT

EXTERNAL MEMORY I/F

DVD/CD FORMATTER

ECC

DECODER I/F

DMA

BCU

STREAM I/F

UMAC

DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL

DSP DECODER

PIXEL OPERATION

I/O PROCESSOR

SERIAL

DATA ROM

INST. ROM

DATA ROM

INST. ROM

DATA ROM

INST. ROM

AUDIO I/F

DATA(AUDIO) SIGNAL

181 175 176 174

SPDIF

PCM-BCK

PCM-DATA0

PCM-LRCLK

TO DVD VIDEO /AUDIO BLOCK DIAGRAM

PICK-UP UNIT

CD-LD 12

DVD-LD 14

PD-MONI 13

GND(DVD-PD)

GND(CD-PD)

GND(LD)

CN201

15 16 11

Q253,Q254

AMP

Q251,Q252

1 3

CD DVD

IC201

(SW)

DVD MAIN CBA

INST.

135 133 132 134

INTERRUPT CONTROLLER

CD/DVD

ROM

DATA ROM

TIMER

32BIT CPU

WATCH DOG TIMER

CPU I/F

READ MEMORY

EXT ADT (0-15), EXT ADR (16-19)

CPU I/F

BCU

DEBUG

EXT ADT (0-15), EXT ADR (16-19)

GENERAL I/O

INTERRUPT CONTROLLER

TIMER

WATCH DOG TIMER

32BIT CPU

INST CACHE

DATA CACHE

VIDEO I/F

NTSC/PAL ENCODER

D/A

EXT ADT (0-15)

163

164

161

158

160

VIDEO-Y

VIDEO-C

VIDEO-R

VIDEO-G

VIDEO-B

IC103 (FLASH ROM)

TO DVD VIDEO /AUDIO BLOCK DIAGRAM

IC105 (LATCH)

FLASH ROM

EXT ADT (0-7)

EXT ADT (8-15)

IC104 (LATCH)

D TYPE

LATCH

D TYPE

LATCH

EXT ADR (0-7)

EXT ADR (8-15)

EXT ADR (16-19)

EXT ADR (0-15)

Page 91

5-8 DVD Video / Audio Block Diagram

DVD VIDEO SIGNAL

DVD AUDIO SIGNALDATA(AUDIO) SIGNAL

FROM DIGITAL SIGNAL PROCESS BLOCK DIAGRAM

VIDEO-Y VIDEO-C VIDEO-R VIDEO-G VIDEO-B

CN601

1 1VIDEO-Y 9 9VIDEO-C 3 3VIDEO-R 7 7VIDEO-G 5 5VIDEO-B

CN1601

WF4

WF5

IC1402 (VIDEO DRIVER)

4dB

AMP

4dB

AMP

4dB AMP

LPF DRIVER

2dB AMP

DRIVER

WF6

3 4

DVD-VIDEO

JK101

JK1401 S-VIDEO OUT

TO VIDEO BLOCK DIAGRAM <VCR SECTION>

DVD-R

DVD-G

DVD-B

IC1204

FIBER OPTIC TRANS MODULE

FROM DIGITAL SIGNAL PROCESS BLOCK DIAGRAM

FROM DVD SYSTEM CONTROL /SERVO BLOCK DIAGRAM

SPDIF

PCM-BCK PCM-DATA0 PCM-LRCLK

ADAC-MD ADAC-MC ADAC-ML

PCM-SCLK A-MUTE

IC601 (AUDIO DAC)

1 2 3

13 14 15

SERIAL

PORT

SERIAL

CONTROL

4X/8X

OVERSAMPLING

DIGITAL FILTER

/FUNCTION

CONTROLLER

ENPHANCED MULTI-LEVEL

DELTA-SIGMA

MODULATOR

ZERO DETECT

SYSTEM CLOCK

DAC

LPF+AMP

L-CH

R-CH

12 11

Q1201

JK1202

DVD-A(L)

DVD-A(R)

DIGITAL AUDIO OUT

TO AUDIO BLOCK DIAGRAM <VCR SECTION>

WF7

WF8

Q1351

BUFFER

VREF

Q1204

+3.3V

IC1201

3 2

6 5

(AMP)

Q1202

Q1203

WF9

CN601 CN1601

1818SPDIF 13 13DVD-A(L) 15 15DVD-A(R) 14 14

DVD-A(L)-MUTE

16 16

DVD-A(R)-MUTE

12 12

DVD-A-MUTE

+3.3V

MAIN CBADVD MAIN CBA

Page 92

6 SYSTEM CONTROL TIMING CHARTS

F (

Still/Slow Control Frame Advance Timing Chart

[ VCR Section ]

1) SP Mode

Mode SW : LD-SW

LD-SW Position detection

A/D Input voltage Limit

Symbol

(Calculated voltage)

3.76V~4.50V (4.12V)

4.51V~5.00V (5.00V)

0.00V~0.25V (0.00V)

1.06V~1.50V (1.21V)

0.66V~1.05V (0.91V)

1.99V~2.60V (2.17V)

1.51V~1.98V (1.80V)

3.20V~3.75V (3.40V)

0.26V~0.65V (0.44V)

4.51V~5.00V (5.00V)

2.61V~3.19V (2.97V)

Note:

8 RF-SW

-AD

Internal Signal)

C-DRIVE

B CTL

8 C-F/R

The first rise of RF-SW after a rise in F-AD signal

"L" "L"

"H"

Acceleration Detection (T1)

"Z"

"H"

20ms

Stop detection (T2)

Slow Tracking Value

Reversal Limit Value

Note:

EJ RS: Loading FWD (LM-FWD/REV “H”) RS EJ: Loading REV (LM-FWD/REV “L”)

Stop (A) = Loading Stop (B) = Unloading

Note:

Symbol Loading Status

EJ Eject

6 H-A-SW

CL Eject ~ REW Reel SB REW Reel ~ Stop(B ) TL Stop(B) ~ Brake Cancel FB Brake Cancel ~ FF / REW SF FF / REW ~ Stop(M), (FF / REW)

SM Stop(M), (FF / REW) ~ Stop(A)

5 ROTA

AU Stop(A) ~ Play / REC

AL Play / RE C ~ Still / Slow

STILL FRAME ADVANCE STILL

SS Still / Slow ~ RS (REW Search)

RS RS (REW Search)

Fig. 1

Page 93

2) LP Mode

18 RF-SW

F-AD (Internal Signal)

The first rise of RF-SW after a rise in F-AD signal

-DRIVE

"H"

"L" "L"

"Z"

"H"

Stop detection (T2)

Acceleration Detection (T1)

PB CTL

78 C-F/R

Slow Tracking Value

20ms

Reversal Limit Valu

16 H-A-SW

15 ROTA

STILL STILL

FRAME ADVANCE

Fig. 2

Page 94

1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS -> FS -> PLAY -> STILL -> PLAY -> STOP(A)

D R

PAUSE

(SLOW)

PLAY

LD-FWD

0.3s

LD-REV

0.2s

LD-FWD

1.0s

0.2s

STOP(A)

20ms

PLAY

LD-FWD

0.2s

0.3s

0.2s

ST-S/

END-S

"OFF"

0.2s

0.4s

0.2s

LD-FWD

LD-REV

0.5s

SMAL AL RS AU AL SS AU AL SM

0.4s

40ms

0.7s

LD-FWD

0.2s

1.2s

PIN NO.

LD-SW

CL/SS EJ AU RS SF SM TL FB AL SB

1 M-FWD "M"

/REV

C-DRIVE

C-F/R

RUM OTATION

P-ON

A-MUTE-H

YCA DATA

EJECT

"Z"

0.2s

REC EE

CASS.LOAD

CLEJ

0.2s

LD-FWD

TL SB

0.2s

1.5s

LD-REV

0.2s

0.8s

REW

LD-FWD

PLAY

0.2s

LD-REV

STILL(SLOW)

Refer to STILL/ SLOW TIMING CHART Fig. 1, 2.

0.5s

LD-FWD

0.3s

0.2s

STOP

/EJECT

LD-REV

40ms

0.8s

STOP(A)

0.2s

Fig. 3

20m

PLAY

0.4s

D-REC-H

DISPLAY

POWER

-OFF

STOP

PLAY RS

STILL

PLAY STOPPLAY

(SLOW)

Page 95

D R

2. STOP(A) -> FF -> STOP(A) -> REW -> STOP(A) -> REC -> PAUSE -> PAUSE or REC -> STOP(A) -> EJECT

STOP

STOP(A)

0.2s

20ms

/EJECT

LD-REV

0.2s

LD-REV

0.5s

0.1s

0.2s

0.5s

ST-S/

END-S

CASS. UNLD

EJECT

"ON"

Fig. 4

STOP

LD-FWD

/EJECT

LD-REV

0.5s

2.5s

LD-FWD

AU AU

0.4s

40ms

STOP(A)

0.2s

20ms

REW

LD-REV

0.2s

STOP(A)

PIN NO.

LD-SW

CL/SS EJ AU RS SF SM TL FB AL SB

1 M-FWD "M"

/REV

"Z"

C-DRIVE

C-F/R

RUM OTATION

P-ON

A-MUTE-H

CA DATA

D-REC-H

REC EE

LD-REV

FB FB SFSF SM SMAL AL SM AL AL ALAU AU SM TL SB EJRS RSSM

SM SF AU AU SS

0.2s

LD-FWD

REW

STOP

/EJECT

LD-FWD

2.5s

LD-FWD

0.5s

0.4s

40ms

LD-REV

STOP(A)

0.2s

20ms

REC

1.0s

LD-FWD

0.2s

REC

STOP

/EJECT

REC or

0.2s

LD-FWD

REC PAUSE

1.2s

PAUSE

REC

LD-FWD

1.0s

LD-REV

0.2s

LD-FWD

0.5s

0.4s

40ms

LD-REV

PAUSE

LD-FWD

LD-REV

2.5s Short REV

AL AL AUSS FB CL

SS SS SF

DISPLAY

STOP

STOPFF

REW STOP

REC

RECREC PAUSE STOP

Page 96

[ DVD Section ]

Tracking Drive

(

ray Close ~ Play / Play ~ Tray Open

Tray OUT (TL220)

Tray IN (TL221)

Sled Drive (TP303)

Disc Drive (TP301)

3.3V 0V

1.65V 0V

1.65V

Tray Close

Disc Rotation

Play

Disc Stop

Tray Open

Focus Drive (TP304)

1.65V 0V

racking Drive

TP302)

1.65V 0V

Page 97

7 IC PIN FUNCTION DESCRIPTIONS

[ VCR Section ]

IC501( SERVO / SYSTEM CONTROL IC )

“H” ≥ 4.5V, “L” ≤ 1.0V

IN/

No.

OUT

1IN

2IN

3IN

4IN

5IN

6IN

7IN

8IN

9IN

10 IN

11 -

12 13 OUT

14 IN

15 OUT

16 OUT

17 IN

18 OUT

19 OUT 20 21 OUT 22 -

Signal

Name

SC2-IN

PGDELAY

POWSAF

END-S

AFC

V-ENV

KEY-1

KEY-2

LD-SW

ST-S NU Not Used

NU Not Used D-V-

SYNC REMOTE

-VIDEO C-ROTA

H-A-SW H-A-

COMP RF-SW Hi-Fi-H-SWHiFi Audio Head

NU Not Used

DVDPOWER

NU Not Used

Function

Input Signal from Pin 8 of SCART2

Video Head Switching Puls e Signal Adjusted Voltage

P-ON Power Detection Input Signal

Tape End Position Detect Signal

Automatic Frequency Control Signal

Video Envelope Comparator Signal

Key Scan Input Signal 1

Key Scan Input Signal 2

Deck Mode Position Detector Signal

Tape Start Position Detector Signal

Dummy V-sync Output

Remote Control Sensor

Color Phase Rotary Changeover Signal

Video Head Amp Switching Puls e

Head Amp Comparator Signal

Video Head Switching Puls e

Switching Puls e

DVD Power Control Signal

Active

Level

A/D

H/Hi-z

H/L

IN/

No.

OUT

23 OUT 24 25 OUT

26 OUT REC-LED 27 -

28 29 OUT DVD-LED

30 OUT VCR-LED

31 IN

32 IN

33 OUT

34 IN 35 IN

36 OUT 37 38 IN 39 OUT 40 41 -

42 IN 43 IN 44 IN

45 OUT 46 -

47 48 IN 49 50 IN 51 52 OUT

Signal

Name

POWERLED

NU Not Used

TIMERLED

NU Not Used NU Not Used

REC-SAFSW

A-MODE

D-REC-H

RESET Xcin Sub Clock

XcOUT Sub Clock Vcc Vcc Xin Main Clock Input Xout Main Clock Input Vss Vss(GND) NU Not Used DVD-

8PIN-IN CLKSEL Clock Select (GND)

OSCin

OSCout NU Not Used

NU Not Used FSC-IN

[4.43MHz] OSDVss OSDVss

OSD-V-IN NU Not Used

OSD-VOUT

Function

“POWER” LED Signal Output

“TIMER” LED Signal Output

“REC” LED Signal Output

“DVD” LED Signal Output

“VCR” LED Signal Output

Recording Safety SW Detect (With Record tab=”L”/ With out Record tab=”H”)

Hi-Fi Tape Detection Signal

Delayed Record Signal

System Reset Signal (Reset=”L”)

SCART 8Pin DVD Input Control Signal

Clock Input for letter size

Clock Output for letter size

4.43MHz Clock Input

OSD Video Signal Input

OSD Video Signal Output

Active

Level

H/L

H/L H/L

H/L

Page 98

IN/

No.

OUT

53 54 -

55 IN

56 57 -

58 IN

59 OUT

60 OUT

61 62 63 64 65 -

66 OUT

67 OUT

68 OUT

69 OUT

70 OUT

71 OUT

IN/

OUT

73 OUT 74 OUT

75 IN

76 OUT

77 OUT

78 OUT

Signal

Name

OSDVcc OSDVcc NU Not Used

COLORIN

NU Not Used NU Not Used

C-SYNC

8POUT-1

8POUT-2

NU Not Used NU Not Used NU Not Used NU Not Used NU Not Used C-POW-SWCapstan Power

P-ON-H DRV-

DATA DRV-STB

DRV-CLK IIC-BUS-

SCL IIC-BUS-

SDA P-OFF-H Power Off at High

OUTPUTSELECT

DVDPOWERMONITOR

C-CONT

D-CONT

C-F/R

Function

SECAM or MESECAM Chroma Video Input Signal at Super Impose

Composite Synchronized Pulse

Control SCART 1 8Pin Level by using 8POUT-1 and 8POUT-2

Switching Signal Power On Signal at

High VFD Driver IC

Control Data VFD Driver IC Chip

Select Signal VFD Driver IC

Control Clock IIC BUS Control

Clock IIC BUS Control Data

Output Select H/L DVD Power Monitor

Signal (P-off="L", P-on="H")

Capstan Motor Control Signal

Drum Motor Control Signal

Capstan Motor FWD/ REV Control Signal (FWD=”L”/REV=”H”)

Active

Level

Z/L

PULSE

H/L

PWM

H/L

IN/

No.

OUT

79 IN

80 IN

81 OUT

82 OUT

83 OUT

84 OUT

85 86 IN

87 IN

88 89 -

91 -

92 93 -

IN/

OUT

IN/

OUT

96 -

97 98 -

99 -

100 IN

Notes:

Abbreviation for Active Level:

PWM -----Pulse Wide Modulation A/D--------Analog - Digital Converter

Signal

Name

S-REEL

T-REEL LM-FWD/

REV LINE-

MUTE A-MUTE-H Audio Mute Control

FF/REWL

NU Not Used P-DOWN-LPower Voltage Down

C-FG

NU Not Used NU Not Used

D-PFG

AMPVRE F OUT

AMPVRE Fin

NU Not Used CTL (-)

CTL (+)

AMPC CTLAMP

out AMPVcc AMPVcc

AVcc

AGC IF AGC Output Signal

Function

Supply Reel Rotation Signal

Take Up Reel Rotation Signal

Loading Motor Control Signal

Audio Mute Control Signal

Signal (Mute = “H”) CTL Frequency

Characteristics Switching Signal (FF/ REW=”L”)

Detector Signal Capstan Motor

Rotation Detection Pulse

Drum Motor Phase/ Frequency Generator

V-Ref for CTL AMP

Playback/Record Control Signal (-)

Playback/Record Control Signal (+)

CTL AMP Connected Terminal

To Monitor for CTL AMP Output

A/D Converter Power Input/ Standard Voltage Input

Active

Level

PULSE

H/L/ Hi-z

PULSE

H/L

PULSE

A/D

Page 99

IC612 [ PT6315-S(TP ) ]

In/Out

No.

1 In CLK 2 In STB 3 In K1 4 In K2 5 - VSS 6 - VDD 7

8 b 9 c

10 d

Out

11 e 12 f 13 g 14 h

Signal

Name

Clock Input Serial Interface Strobe Key Data 1 Input Key Data 2 Input GND Power Supply

Segment Output

Name Function

15 - VEE 16 Out i 17

18 6G 19 5G

Out

20 4G 21 3G 22 2G 23 1G 24 - VDD

25 - VSS 26 In OSC 27 Out DOUT 28 In DIN

Pull Down Level Segment Output

Grid Output

Power Supply GND Oscillator Input Serial Data Output Serial Data Input

Page 100

8 LEAD IDENTIFICATIONS

E C B

NJM4558D KIA4558P

8 5

1 4

BN1L4M-T BN1F4M-T BA1F4M-T KTA1266(GR) KTC3199(Y,GR,BL) 2SC2785(J,H,F,K) KRC103M KRA103M 2SA1175(J,H,F) KTA1267(Y) KTA1267(GR) KRA104M

LTV-817(B,C)-F EL817(A,B,C)

E C B

2SC1815-BL(TPE2) 2SC1815-Y(TPE2) 2SC1815-GR(TPE2) 2SC2120-Y(TPE2) KTC3203(Y) 2SA1015-GR(TPE2) 2SA1020(Y) 2SC3266-Y(TPE2) KTA1281(Y) KTC3205(Y)

FMG4A T148 RN1511(TE85R)

C1 C2

B1 E B2

PT6313-S-TP

PQ070XF01SZ

1234

FA1F4M-T1B KRC103S RTK KTC3875Y-RTK

MID-32A22 PT204-6B-12

2SK3566

GDS

MM1567AJBE

7-BT-292GN

0C-0805T*002 GP1FA512TZV

123

100

TC4053BF(N) BU4053BCF-E2

QSZAC0RMB159 LA71750EM-MPB-E

LALA72648M-MPB-EM

CAT24WC02JI

BR24C02F-W

MSP3417G-QG-B8

MSP3417G-QG-B8-V3

Note:

A: Anode K: Cathode E: Emitter C: Collector B: Base R: Referenc S: Source

G: Gate D: Drain

Hitachi DVPF-3-A Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

CONTENTS

CAUTIONS FOR SAFETY IN PERFORMING REPAIR

1-1 LASER BEAM SAFETY PRECAUTIONS

1-2 IMPORTANT SAFETY PRECAUTIONS

1-2-1 Product Safety Notice

1-2-2 Precautions during Servicing

1-2-3 Safety Check after Ser vicing

1-3 STANDARD NOTES FOR SERVICING

1-3-1 Circuit Board Indications

1-3-2 Instructions for Connectors

1-4 NOTES WHEN USING SERVICE MANUAL

GENERAL INFORMATION2

2-1 SPECIFICATIONS

2-2 COMPARISON OF MODELS

2-2-1 VCR Section

2-2-2 DVD Section

2-3 OPERATING CONTROLS AND FUNCTIONS

FRONT PANEL

REMOTE CONTROL

REAR VIEW

MAINTENANCE AND INSPECTION3

3-1 TROUBLESHOOTING

3-1-1 Power Supply Section

3-1-2 DVD Section

3-1-3 VCR Section

3-2 FIRMWARE RENEWAL MODE

3-3 STANDARD MAINTEN ANCE

3-3-1 Service Schedule of Components

3-3-2 Cleaning

DISASSEMBLY 4

4-1 CABINET DISASSEMBLY INSTRUCTIONS

4-1-1 Disassembly Flowchart

4-1-2 Disassembly Method

To Remove the Disc Manually

4-3 ALIGNMENT PROCEDURES OF MECHANISM

ADJUSTMENT5

5-1 PREPARATION FOR SERVICING

5-1-1 How to Enter th e Service Mode

5-2 FIXTURE AND TAPE FOR ADJUSTMENT

5-2-1 How To Use The Fixtures And Tape

5-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS

5-3-1 Test Equipment Required

5-4 MECHANICAL ALIGNMENT PROC ED UR ES

5-4-1 Service Information

5-4-2 Tape Interchangeability Alignment

1-B. X Value Alignment

EXPLODED VIEWS AND PARTS LIST6

6-1 EXPLODED VIEWS

6-1-1 Cabinet Section

6-1-2 Deck Mechanism View 1 Section 6-1-3 Deck Mechanism View 2 Section

6-1-4 Deck Mechanism View 3 Section

6-2 REPLACEMENT PARTS LIST

6-2-1 Mechanical Parts List

6-2-2 Electrical Parts List

SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS

1 WIRING DIAGRAMS

1-1 VCR Section

1-2 DVD Section

2 SCHEMATIC DIAGRAMS

2-1 Main 1/9 Schematic Diagram

2-2 Main 2/9 & Sensor Schematic Diagrams

2-3 Main 3/9 Schematic Diagram

2-4 Main 4/9 Schematic Diagram

2-5 Main 5/9 Schematic Diagram

2-6 Main 6/9 Schematic Diagram

2-7 Main 7/9 Schematic Diagrams

2-9 Main 9/9 Schematic Diagrams

2-10 Power Supply & Junction Schematic Diagrams

2-11 Jack Schematic Diagram

2-12 Function Schematic Diagrams

2-13 AFV Schematic Diagram

2-14 DVD Main 1/3 Schematic Diagram

2-15 DVD Main 2/3 Schematic Diagram

IC101 VOLTAGE CHART

2-16 DVD Main 3/3 Schematic Diagram

3 WAVEFORMS