Philips DVD-740-VR Service manual

DVD-Video Player DVD740VR

DVD740VR /001 /051

Contents Page

Laser Beam Safety Precautions 1-1-1
Important Safety Precautions 1-2-1
Preparation for Servicing 1-3-1
Standart Notes for Servicing 1-4-1
Operating Controls and Functions 1-5-1
Signal Name Abbreviations 1-6-1
Cabinet Disassembly Instructions 1-7-1
Electrical Adjustment Instructions 1-8-1
Firmware Renewal Mode 1-9-1
Block Diagrams 1-10-1
Schematic Diagrams/CBA’s and Test Points 1-11-1
Waveforms 1-12-1
Wiring Diagram 1-13-1
System Control Timing Charts 1-14-1
IC Pin Function Descriptions 1-15-1
Lead Identifications 1-16-1
Exploded Views 1-18-1
Spare Parts List

©

Copyright 2002 Philips Consumer Electronics B.V. Eindhoven, The Netherlands.
All rights reserved. No part of this publication may be reproduced, stored in a
retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, or otherwise without the prior permission of Philips.

Published by MW 0269 Service PaCE Printed in the Netherlands Subject to modification EN 3122 785 12940

MAIN SECTION

DIGITAL VIDEO DISC PLAYER &

VIDEO CASSETTE RECORDER

Sec. 1: Main Section

I Adjustment Procedures
I Schematic Diagrams and CBA’s
I Exploded Views
I Mechanical and Electrical Parts List

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 strike against
your skin.

The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.

Caution:

hazardous radiation exposure.

Use of controls and adjustments, or doing procedures other than those specified herein, may result in

Drive Mecha Assembly

Laser Beam Radiation

Laser Pickup

Turntable

CAUTION - VISIBLE LASER
RADIATION WHEN OPEN AND
INTERLOCK DEFEATED.
AVOID EXPOSURE TO BEAM.

Location: Inside Top of DVD mechanism.

1-1-1 DVD_LASER

IMPORTANT SAFETY PRECAUTIONS

Product Safety Notice

Some electrical and mechanical parts have special
safety-related characteristics 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 safety characteristics are iden­tified 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, fire, 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 product safety and electrical codes of
the countries in which they are to be sold. However, in
order to maintain such compliance, it is equally impor­tant to implement the following precautions when a set
is being serviced

Precautions during Servicing

Parts identified by the ! symbol are critical for

A.

safety. Replace only with part number specified.

In addition to safety, other parts and assemblies

B.

are specified for conformance with regulations
applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise block­ing capacitors, and noise blocking filters, etc.

Use specified internal wiring. Note especially:

C.

1)Wires covered with PVC tubing

2)Double insulated wires

3)High voltage leads
Use specified insulating materials for hazardous

D.

live parts. Note especially:

1)Insulation tape

2)PVC tubing

3)Spacers

4)Insulators for transistors
When replacing AC primary side components

E.

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

Observe that the wires do not contact heat produc-

F.

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

Check that replaced wires do not contact sharp

G.

edges or pointed parts.

When a power cord has been replaced, check that

H.

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

.

Also check areas surrounding repaired locations.

I.

Use care that foreign objects (screws, solder drop-

J.

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

Crimp type wire connector

K.

The power transformer 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:

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 the complete clo­sure of the tool.

When connecting or disconnecting the internal

L.

connectors, first, disconnect the AC plug from the
AC outlet.

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

1-2-1 SFTY_06

Safety Check after Servicing

Examine the area surrounding the repaired location for
damage or deterioration. Observe that screws, parts,
and wires have been returned to 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 clearance distance (d) and (d’) between sol­dered terminals, and between terminals and surround­ing metallic parts. (See Fig. 1)

Table 1 : Ratings for selected area

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

110 to 240 V

This table is unofficial and for reference only.

Note:

Be sure to confirm the precise values.

≥ 3mm(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 across the terminals of load
Z. See Fig. 2 and the following table.

Chassis or Secondary Conductor

Primary Circuit Terminals

dd'

Exposed Accessible Part

Z

One side of

B

Power Cord Plug Prongs

AC Voltmeter
(High Impedance)

Fig. 1

Fig. 2

Table 2: Leakage current ratings for selected areas

AC Line Voltage Load Z Leakage Current (i)

2kΩ RES.

Connected in

110 to 240 V

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

Note:

parallel

50kΩ RES.

Connected in

parallel

i≤0.7mA AC Peak

i≤2mA DC

i≤0.7mA AC Peak

i≤2mA DC

1-2-2 SFTY_06

One side of power cord plug

prongs (B) to:

RF or

Antenna terminals

A/V Input, Output

STANDARD NOTES FOR SERVICING

Circuit Board Indications

a. The output pin of the 3 pin Regulator ICs is indi-

cated as shown.

Top View

Out

b. For other ICs, pin 1 and every fifth pin are indicated

as shown.

Input

In

Pin 1

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

shown.

Pin 1

Bottom View

5

10

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. S-1-1)

Fig. S-1-1

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

ing the hot air.

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

CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)

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

zers. (Fig. S-1-6)

.

Instructions for Connectors

1. When you connect or disconnect the FFC (Flexible
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 masking tape around
the flat pack-IC to protect other parts from damage.
(Fig. S-1-2)

2. The flat pack-IC on the CBA is 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. S-1-2

1-3-1 NOTE_1-3

With Soldering Iron:

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

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

Flat Pack-IC

Desoldering Braid

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

CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)

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

zers. (Fig. S-1-6)

Note:

When using a soldering iron, care must be taken
to ensure that the flat pack-IC is not being held by
glue. When the flat pack-IC is removed from the
CBA, handle it gently because it may be damaged
if force is applied.

Soldering Iron

Fig. S-1-3

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

one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air desoldering
machine. (Fig. S-1-4)

Sharp
Pin

Fine Tip
Soldering Iron

Fig. S-1-4

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

CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)

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

zers. (Fig. S-1-6)

With Iron Wire:

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

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

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

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

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

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

To Solid
Mounting Point

CBA

Tweezers

Hot Air Blower

or

Iron Wire

Soldering Iron

Fig. S-1-5

Fine Tip
Soldering Iron

Flat Pack-IC

Fig. S-1-6

1-3-2 NOTE_1-3

2. Installation

(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 replacement flat pack-IC more
easily.

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

(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
presolder the four corners of the flat pack-IC. (See
Fig. S-1-8.)

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

of the pins have solder bridges.

Example :

Pin 1 of the Flat Pack-IC
is indicated by a " " mark.

Fig. S-1-7

Instructions for Handling
Semi-conductors

Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electro­static charge during unpacking or repair work.

1. Ground for Human Body

Be sure to wear a grounding band (1MΩ) that is prop­erly grounded to remove any static electricity that may
be charged on the body.

2. Ground for Workbench

Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on cloth­ing will not escape through the body grounding band,
be careful to avoid contacting semi-conductors with
your clothing.

< Incorrect >

CBA

Presolder

Flat Pack-IC

Fig. S-1-8

CBA

< Correct >

Grounding Band

1MΩ

CBA

1MΩ

Conductive Sheet or
Copper Plate

1-3-3 NOTE_1-3

PREPARATION FOR SERVICING

How to Enter the 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 Deck Mechanism Assembly and
press the PLAY button. The tape will be loaded into
the Deck Mechanism Assembly. Make sure the power
is on, TP501 (SENSOR INHIBITION) to GND. This will
stop the function of Tape Start Sensor, Tape End Sen­sor and Reel Sensors. (If these TPs are connected
before plugging in the unit, the function of the sensors
will stay valid.) See Fig. 1.

Because the Tape End Sensors are inactive, do

Note:

not run a tape all the way to the start or the end of the
tape to avoid tape damage.

About REC-Safety Switch

Caution:

The REC-Safety Switch is directly mounted on the
Main CBA. When the Deck Mechanism Assembly is
removed from the Main CBA for servicing, this switch
does not work automatically.

What to do for preparation

In order to record, press the Rec button while pushing
REC-SAFETY SW on the Main CBA. See Fig. 1.

Q503

TP501

S-INH

Q504

SW506

(REC-SAFETY SW)

Fig. 1

1-4-1 H9330PFS

OPERATING CONTROLS AND FUNCTIONS

[ DVD740VR/001 ]

1-5-1 H9330IB

1-5-2 H9330IB

1-5-3 H9330IB

1-5-4 H9330IB

1-5-5 H9330IB

[ DVD740VR/051 ]

1-5-6 H9330IB

1-5-7 H9330IB

1-5-8 H9330IB

1-5-9 H9330IB













































1-5-10 H9330IB

SIGNAL NAME ABBREVIATIONS

Signal Name Function

8POUT-1

8POUT-2

A-COM Audio Head Common

A-MODE Hi-Fi Tape Detection Signal

A-MUTE-H

A-IN(L)-F Audio Signal Input (L)

A-IN(R)-F Audio Signal Input (R)

A-OUT(L)-F Audio Signal Output (L)

A-OUT(R)-F Audio Signal Output (R)

A-PB/REC

AE-H Audio Erase Head

AFC

AGC IF AGC Control Signal

AL+15V/+12V

AL+5V

AL+9V

AL+12V

AL-30V

AMPC CTL AMP Connected Terminal

AMPVcc AMPVcc

AMPVREF

AMPVss AMPVss (GND)

AVcc

CC Terminal

C-CONT Capstan Motor Control Signal

SCART 1 8Pin Output Control
Signal

SCART 2 8Pin Output Control
Signal

Audio Mute Control Signal
(Mute = “H”)

Normal Audio Play Back/Record
Signal

Automatic Frequency Control
Signal

Always +15V/+12V with AC Plug
Connected

Always +5V with AC Plug
Connected

Always +9V with AC Plug
Connected

Always +12V with AC Plug
Connected

Always -30V with AC Plug
Connected

IN

V-Ref for CTL AMP

A/D Converter Power Input/
Standard Voltage Input

Signal Name Function

C-ROTA

C-SYNC Composite Synchronized Pulse

CAS LED “CASSETTE” LED Signal Output

CLKSEL Clock Select (GND)

CTL (+) Playback/Record Control Signal(+)

CTL (-) Playback/Record Control Signal (-)

CTLAMPout To Monitor for CTL AMP Output

D-CONT Drum Motor Control Signal

D-FG

D-PG Drum Motor Pulse Generator

D-REC-H Delayed Record Signal

D-V- SYNC Dummy V-sync Output

DAVN-L VPS/PDC Data Receive = “L”

DRV-CLK LED Clock Driver IC Control Clock

DRV-DATA LED Clock Driver IC Control Data

DRV-STB

DVD LED “DVD” LED Signal Output

DVD-8PIN-IN

DVD-P­ON+3.3V

DVD-P­ON+5V

DVD-P­ON+12V

DVD-POWER DVD Power Control Signal

DVD-POWER­MONITOR

DVD-B-OUT

DVD-G-OUT

DVD-R-OUT

Color Phase Rotary Changeover
SIgnal

Drum Motor Rotation Detection
Pulse

LED Clock Driver IC Chip Select
Signal

SCART 8Pin DVD Input Control
Signal

+3.3V at DVD Power-On Signal

+5V at DVD Power-On Signal

+12V at DVD Power-On Signal

DVD Power Monitor Signal
(P-off="H", P-on="L")

DVD Component Video Signal
(blue)

DVD Component Video Signal
(green)

DVD Component Video Signal
(red)

C-F/R

C-FG

C-POWER­SW

Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)

Capstan Motor
Rotation Detection Pulse

Capstan Power Switching Pulse

END-S Tape End Position Detect Signal

FE-H GND Ground for Full Erase Head

FF/REW-L

FSC-IN
[4.43MHz]

1-6-1 H9330SNA

CTL Amp Gain Switching Signal
(FF/REW=”L”)

4.43MHz Clock Input

Signal Name Function

FTV-IN

Comparator Input of Video Signal
for Follow TV

H-A-COMP Head Amp Comparator Signal

H-A-SW Video Head Amp Switching Pulse

Hi-Fi-A (L) Hi-Fi Audio Head (L)

Hi-Fi-A (R) Hi-Fi Audio Head (R)

Hi-Fi-COM Hi-Fi Audio Head Common

Hi-Fi-H-SW Hi-Fi Audio Head Switching Pulse

HLF LPF Connected Terminal (Slicer)

IIC-BUS- SCL IIC BUS Control Clock

IIC-BUS- SDA IIC BUS Control Data

JK1-8P-OUT-1

JK1-8P-OUT-2

SCART 1 8Pin Output Control
Signal

SCART 2 8Pin Output Control
Signal

KEY-1 Key Scan Input Signal 1

KEY-2 Key Scan Input Signal 2

LD-SW

Deck Mode Position Detector
Signal

LM-FWD/REV Loading Motor Control Signal

MOD-A Modulator Audio Output Signal

MOD-V Modulator Video Output Signal

N-A-PB Normal Audio Playback

N-A-REC Normal Audio Recording

OSC

OSC

IN

OUT

Clock Input for letter size

Clock Output for letter size

OSD-V-IN OSD Video Signal Input

OSD-V-OUT OSD Video Signal Output

OSDVss OSDVss

OUTPUT­SELECT

P-DOWN-L

Output Select

Power Voltage Down Detector
Signal

Signal Name Function

REC LED “REC” LED Signal Output

Recording Safety SW Detect (With

REC-SAF-SW

Record tab=”L”/ With out Record
tab=”H”)

REMOTE Remote Control Sensor

RESET

System Reset
Signal (Reset=”L”)

RF-SW Video Head Switching Pulse

RGB­THROUGH

SCART 2 RGB Through Control
Signal

S-REEL Supply Reel Rotation Signal

SC2-IN Input Signal from Pin 8 of SCART2

ST-S

Tape Start Position Detector
Signal

T-REEL Take Up Reel Rotation Signal

TIMER LED “TIMER” LED Signal Output

TIMER+5V +5V at Timer

TU-AUDIO Tuner Audio Input Signal

TU-VIDEO Tuner Video Input Signal

V-ENV

Video Envelope Comparator
Signal

Vcc Vcc

VCR LED “VCR” LED Signal Output

V-IN Video Signal Input

V-OUT Video Signal Output

VIDEO-IN Video Signal Input

VIDEO-OUT Video Signal Output

Vss Vss(GND)

X-IN Main Clock Input

X-OUT Main Clock Input

XC-IN Sub Clock

XC-OUT Sub Clock

P-ON+44V +44V at Power-On Signal

P-ON+5V +5V at Power-On Signal

P-ON+9V +9V at Power-On Signal

P-ON-H Power On Signal at High

PG-DELAY

Video Head Switching Pulse
Signal Adjusted Voltage

PG/LP PG/LP

POW-SAF

P-ON Power Detection Input
Signal

1-6-2 H9330SNA

CABINET DISASSEMBLY INSTRUCTIONS

1. Disassembly Flowchart

This flowchart indicates the disassembly steps to gain
access to item(s) to be serviced. When reassembling,
follow the steps in reverse order. Bend, route, and
dress the cables as they were originally.

[1] Top Cover

[17] Insulator

[13] Power

Supply CBA

[12] AFV CBA

[10] Main CBA

[11] Function

CBA

[2] Front

Assembly

[3] Top Bracket

[5] DVD Mecha

Assembly

[7] Rear Panel

[8] VCR Chasis

Unit

[4] Jack CBA

[16] Side

Bracket

[6] DVD Main

CBA Unit

[15] Deck

Pedestal-2

[9] Deck

Assembly

[14] Deck

Pedestal-1

2. Disassembly Method

ID/

LOC.

No.

[1] Top Cover D1 8(S-1) -

[2]

[3]

[4] Jack CBA D3 3(S-3) -

[5]

PART

Front
Assembly

Top
Bracket

DVD
Mecha
Assembly

Fig.

No.

D2

D2 4(S-2) -

D4

REMOVAL

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

*CN505, *2(L-1), Tray
Panel, *7(L-2)

3(S-4), *CN501,
*CN701

Note

1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8

-

ID/

LOC.

No.

[6]

[7]

[8]

[9]

[10] Main CBA D8 ---------- -

[11]

[12] AFV CBA D8 Desolder -

[13]

[14]

[15]

[16]

[17] Insulator D9 ---------- -

↓

(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

DVD Main
CBA Unit

Rear
Panel

VCR
Chassis
Unit

Deck
Assembly

Function
CBA

Power
Supply
CBA

Deck
Pedestal-1

Deck
Pedestal-2

Side
Bracket

↓

(2)

unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector, W=Washer
*=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.

D5

D6 3(S-6), 3(S-7) -

D7

D8 Desolder, 2(S-10) 4,5

D8 Desolder, *CN2002 -

D9

D9 6(S-12), 3(W-1) -

D9 (S-13) -

D9 (S-14) -

↓

(3)

REMOVAL

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

3(S-5), *CN101,
*CN401

*CN001, *CN002,
5(S-8), 5(S-9)

3(S-11), Bracket,
*(L-3)

↓

(4)

Note

2
2-1
2-2
2-3

3

-

-

↓

(5)

1-7-1 H9330DC

Reference Notes

CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.

1-1. Connect the wall plug to an AC outlet and press

the OPEN/CLOSE button to open the Tray.

1-2. Remove the Tray Panel by releasing two Locking

Tabs (L-1).

1-3. Press the OPEN/CLOSE button again to close

the Tray.

1-4. Press the POWER button to turn the power off.

1-5. Unplug an AC cord.

1-6. Disconnect connector CN505.

1-7. Remove Screw (S-1A).

1-8. Release seven Locking Tabs (L-2) (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. D5.

2-2. Short the three short lands of FPC cable with sol-

der before removing the FFC cable (CN101) from
it. If you disconnect the FFC cable (CN101), the
laser diode of pickup will be destroyed. (Fig. D5)

2-3. Disconnect Connector (CN401). Remove three

Screws (S-5) and lift the DVD Main CBA Unit.
(Fig. D5)

CAUTION 3: When reassembling, confirm the FFC
cable (CN101) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D5)

4. When reassembling, solder wire jumpers as shown
in Fig. D8.

5. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. D8. Then, install the Deck Assembly while
aligning the hole of Cam Gear with the pin of LD­SW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D8.

[1] Top Cover

(S-1)

(S-1)

Tray Panel

(L-1)

(A)

(B)

[2] Front Assembly

(S-2)

(L-2)

(A)

(S-2)

(L-2)

(S-1)

[3] Top Bracket

(S-2)

(A)

Fig. D2

[4] Jack CBA

(S-1)

Fig. D1

CN505

(S-3)

Fig. D3

1-7-2 H9330DC

CN501

(S-4)

CN701

(S-4)

[5] DVD Mecha
Assembly

Fig. D4

[7] Rear Panel

(S-7)

(S-6)

(S-7)

Fig. D6

(S-5)

CN101
(S-5)

CN401

A

DVD Mecha
Assembly

B

Short the three short lands by soldering

View for A

(S-5)

[6] DVD Main
CBA Unit

(S-8)

(S-9)

[8] VCR Chassis
Unit

CN001

(S-8)

(S-9)

(S-8)

CN002

Fig. D7

Slide

Pickup Unit

View for B

OR

Short the three short
lands by soldering

C

View for C

Fig. D5

1-7-3 H9330DC

[9] Deck
Assembly

FE Head

CN2002

Cylinder Assembly

AC Head
Assembly

[12] AFV CBA

Pin

SW507
LD-SW

[10] Main CBA

[9] Deck Assembly

Cam Gear

Desolder

[11] Function CBA

(S-10)

[10] Main CBA

From
AC Head
Assembly

Lead with
blue stripe

Desolder
from bottom

Desolder

From
Cylinder
Assembly

Desolder

LD-SW

Desolder

Lead with
blue stripe

Shaft

Hole

Hole

Pin

[10] Main CBA

From
FE Head

From
Capstan
Motor
Assembly

Desolder

BOTTOM VIEW

Lead connections of Deck Assembly and Main CBA

Fig. D8

1-7-4 H9330DC

(S-11)

[13] Power Supply CBA

Bracket

(S-11)

(S-12)

[15] Deck Pedestal-2

[16] Side Bracket

(S-13)

(L-3)

[17] Insulator

(S-14)

HOW TO MANUAL EJECT

1. Remove the Top Case.

2. Make a tool from a paper clip, etc., (length = approxi­mately 50 mm, maximum diameter = approximately 3
mm) as shown below.

3. Insert the tool into the manual eject hole on the DVD
Mecha. Then, push it until the tray is ejected.

(W-1)

(W-1)

(W-1)

[14] Deck Pedestal-1

Fig. D9

Top Cover

Tray

1

DVD Mecha

4

Eject Hole

Paper clip (Available Locally)

2

3

Straightened
portion = approximately 35mm

Deck Assembly

Length = approximately 50mm

1-7-5 H9330DC

ELECTRICAL ADJUSTMENT INSTRUCTIONS

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

NOTE:

1.Electrical adjustments are required after replacing
circuit components and certain mechanical parts.
It is important to do these adjustments only after
all repairs and replacements have been com­pleted. Also, do not attempt these adjustments
unless the proper equipment is available.

2.To perform these alignment / confirmation proce­dures, make sure that the tracking control is set in
the center position: Press either "L5??" or "K" button
on the remote control unit first, then the "PLAY"
button (Front Panel only).

CH1

CH2

Figure 1

EXT. Syncronize Trigger Point

1.0H

6.5H

Switching Pulse

V-Sync

0.5H

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 (FL6A)

Head Switching Position Adjust­ment

Purpose:

To determine the Head Switching point during
playback.

Symptom of Misadjustment:

May cause Head Switching noise or vertical jitter
in the picture.

Test point Adj.Point Mode Input

TP751(V-OUT)

TP302(RF-SW)

GND

Tape

VR501

(Switching Point)

(MAIN CBA)

Measurement

Equipment

PLAY

(SP)

Spec.

-----

Reference Notes:

Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output wave­form is at the 6.5H(412.7µs) delayed position from the
rising edge of the CH2 head switching pulse wave­form.

FL6A Oscilloscope

Connections of Measurement Equipment

TP751

Main CBA

GND

TP302

6.5H±1H

(412.7µs±60µs)

Oscilloscope

CH1 CH2
Trig. (+)

1-8-1 H9330EA

FIRMWARE RENEWAL MODE

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

2. To put the DVD player into version up mode, press
[9], [8], [7], [6], and [SEARCH MODE] buttons on
the remote control unit in that order. The tray will
open automatically.
Fig. a appears on the screen and Fig. b appears on
the VFD.

BE F/W VERSION UP MODE

PLEASE INSERT A DISC

FOR BE F/W VERSION UP.

POWER

EXIT:

Fig. d VFD in Programming Mode (Example)

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

AppearanceNo. State

Reading... Sending files into the memory

1

Erasing... Erasing previous version data

2

Programming...

3 Writing new version data

5. After programming is finished, the tray opens auto­matically. Fig. e appears on the screen and the
checksum in (*3) of Fig. e appears on the VFD.
(Fig. f)

Fig. a Version Up Mode Screen

Fig. b VFD in Version Up Mode

The DVD player can also enter the version up
mode with the tray open. In this case, Fig. a will be
shown on the screen while the tray is open.

3. Load the disc for version up. (For closing the tray,
only the "OPEN/CLOSE" button is available.)

4. The DVD player enters the F/W version up mode
automatically. Fig. c appears on the screen and
Fig. d appears on the VFD.

BE F/W VERSION UP MODE

VERSION: ********

Reading...(*2)

BE F/W VERSION UP MODE

VERSION: ********

COMPLETED SUM:7abc(*3)

Fig. e Completed Program Mode Screen

Fig. f VFD upon Finishing the Programing Mode (Example)

At this time, no buttons are available.

6. For tray opening, plug the AC cord into the AC out­let.

7. Turn the power on by pressing the power button
and the tray will close.

Fig. c Programming Mode Screen

1-9-1 H9330ROM

Servo/System Control Block Diagram

BLOCK DIAGRAMS <VCR Section>

TEST POINT INFORMATION

NOTE FOR 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.)

: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.

" " = SMD

(DECK ASSEMBLY)

AC HEAD ASSEMBLY

CL287

CONTROL
HEAD

Q504

ST-S

SENSOR CBA

Q503

END-S

SENSOR CBA

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

CL504

SW507
LD-SW

TP502

END-S

AL+5V

Q506

T-REEL

PS502

D555
S-LED

S-REEL

AL+5V

MAIN CBA

TIMER+5V

TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>

AL+5V

VR501
SW-POINT

Q515

RESET

REMOTE1

Q510

TP503

CTL

IC501

(SERVO/SYSTEM CONTROL)

KEY- 2

POWER LED

CAS LED

TIMER LED

RESET

34

KEY- 1

REMOCON-IN

14

LD-SW

9

95

CTL(+)
CTL(-)

94
10

ST-S

4

END-S
T-REEL

80

S-REEL79

REC LED

DVD LED

CTL97

FF/REW-L84

PG-DELAY

2

VCR LED

A-MUTE-H

8
23
24
25

7

26

29

30

83

Q507

Q502

KEY
SWITCH

TP501

SENS-INH

Q511 D508

Q508

Q509

Q501

D506

D507

CN505

2 2KEY-2
6 6
4 4CAS-LED
5 5TIMER-LED

AL+5V

REC

DVD

VCR

POWER-LED

CN651

5
6

IIC-BUS SDA

IIC-BUS SCL

A-MUTE-H

FRONT JACK CBA

KEY SWITCH

D651

D653

D652

D654

IC502 (MEMORY)

SDA
SCL

TO
AUDIO BLOCK

AL+5V

POWER

CAS

TIMER

STAND-BY

CYLINDER ASSEMBLY CAPSTAN MOTOR

PG

DRUM
MOTOR

SENSOR

M

LOADING
MOTOR

M

CAPSTAN
MOTOR

M

1-10-1 1-10-2 H9330BLS

CL502

12 C-F/R
11

AL+15V/+12V

10 AL+12V(1)

P-ON+5V

9

GND

8

C-FG

7

C-CONT

6

GND

5

D-FG

4

LM-FWD/REV

3

D-CONT

2

D-PG

1

TO
POWER
SUPPLY
BLOCK

AL+5V

SW506

REC-SAFETY

AL+15V/+12V
AL+12V(1)
P-ON+5V

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

REC-SAF-SW

31

C-F/R

78

C-FG

87

C-CONT

76

D-FG

89

LM-FWD/REV

81

D-CONT77
D-PG

90

OUTPUT SELECT

C-POW-SW

66

P-ON-H

67
86 P-DOWN-L

Hi-Fi-H-SW

A-MODE

IIC-BUS SDA

IIC-BUS SCL

DAVN-L

D-REC-H

RF-SW

C-ROTA

D-V SYNC

H-A-SW

H-A-COMP

V-ENV

19
61

72
71
20
65
18
15
13
16

17

74

IIC-BUS SDA

IIC-BUS SCL

Hi-Fi-H-SW

A-MODE

OUTPUT SELECT

IIC-BUS SDA

IIC-BUS SCL

DAVN-L

D-REC-H

RF-SW

C-ROTA

D-V SYNC

H-A-SW

H-A-COMP

6

OUTPUT SELECT

V-ENV

TO
Hi-Fi AUDIO
BLOCK

TO
VIDEO BLOCK

Video Block Diagram

" " = SMD

IC631 (VPS)

IIC-BUS SDA

TU701

TU-VIDEO

FRONT JACK CBA

CN651 CN505

JK653
V-IN-F

VIDEO BLOCK

JK101

V-OUT1

V-IN1

V-OUT2

V-IN2

19
20

JK102

19
20

DAVN-L

IIC-BUS SCL

VPS-V

VIDEO

V-IN-F 77

DVD-VIDEOFROM DVD

Q104

BUFFER

Q103

BUFFER

NOTE FOR 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.)

14

6
7

16

Q301

BUFFER

6

24

IC301

(Y/C SIGNAL PROCESS)

48
50
52
54
56

WF1

TP751

V-OUT

61
63

IC751 (SW)

DVD

3

4

VCR

5

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.

IC501 (OSD)

OSD
CHARACTER

52

MIX

TUNER

IN1

IN2

FRT

IN2

FRT

PB/EE

MUTE

TUNER

IN1

PB/EE

MUTE

50

BYPASS

58 59

DAVN-L
IIC-BUS SDA
IIC-BUS SCL

65

6968

46 43

SERIAL

DECORDER

AGC

LUMINANCE
SIGNAL
PROCESS

CHARA.
INS.

CCD 1H DELAY

1/2

CHROMINANCE

FBC

PR

SIGNAL
PROCESS

Y/C
MIX

AGC VXO

TO SERVO/SYSTEM
CONTROL BLOCK

Y. DELAY

R P R P

2928

REC-VIDEO SIGNAL

MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL

MAIN CBA

DVD-R

FROM DVD VIDEO BLOCK
<DVD SECTION>

DVD-G
DVD-B

7978

JK101

15
11

R
G
B

7

(DECK ASSEMBLY)

CL251

R

P

SP

SP
HEAD
AMP

EP

96
95
94
93

V-COM

V(L)-1

V(L)-2

V-COM

V(R)-2

V(R)-1

EP

Y

REC FM

+

C

AGC

HEAD
AMP

D-REC-H

RF-SW/C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

89
88
87

80

70
62
71
83
84

90

WF2

TP504
RF-SW

D-REC-H

RF-SW

C-ROTA

D-V-SYNC

H-A-SW

H-A-COMP

V-ENV

1
2
3
4
5
6

TO SERVO/SYSTEM
CONTROL BLOCK

21

CYLINDER ASSEMBLY

VIDEO (R)-1
HEAD

VIDEO (L)-1
HEAD

VIDEO (L)-2
HEAD

VIDEO (R)-2
HEAD

SW CTL

11109

TP301

C-PB

WF3

Q752

OUTPUT SELECT

X301

4.43MHz

TO SERVO/SYSTEM
CONTROL BLOCK

1-10-3 1-10-4 H9330BLV