Philips DVP3345V/17 User manual

Contents
Chapter
Sec. 1: Adjustment Procedures
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Sec. 2: Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded Views
Deck Parts List
Survey of versions:
Published by FU0738 AV Systems Printed in The Netherlands Subject to modification
Version 1.0
/17 NTSC
DVD + VCR Combi DVP3345V/17
cCopyright 2007 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.
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
KLASS 1 LASER APPARAT
CLASSE 1 PRODUIT LASER
EN 3139 785 32900
STOP PLAY REW F.FWD PLAY REC TRACKINGSTOP/EJECT
VIDEO AUDIOLR
ONE TOUCHRECORDING LONG PLAY
SOURCE
STANDBY-ON
VCR DVD
DVD
DVD PLAYER/ VCR DVP3345V
OPEN/CLOSE
Service Manual
Service
Service
Service

MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
TABLE OF CONTENTS
LASER BEAM SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
IMPORTANT SAFETY PRECAUTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
STANDARD NOTES FOR SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
FUNCTION INDICATOR SYMBOLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
PREPARATION FOR SERVICING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
OPERATING CONTROLS AND FUNCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
SIGNAL NAME ABBREVIATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
CABINET DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
ELECTRICAL ADJUSTMENT INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
HOW TO INITIALIZE THE DVD PLAYER & VCR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
BLOCK DIAGRAMS < VCR SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
BLOCK DIAGRAMS < DVD SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-6
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
WIRING DIAGRAM < VCR SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
WIRING DIAGRAM < DVD SECTION >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-2
SYSTEM CONTROL TIMING CHARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21-1
MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22-1
Sec. 1: Main Section
IAdjustment Procedures
ISchematic Diagrams and CBA’s
IExploded Views
IMechanical and Electrical Parts List
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.

1-1-1 DL8NLSP
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
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 30 cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
CAUTION: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Location: Top of DVD mechanism.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Drive Mechanism
Assembly
Laser Beam Radiation
Laser Pickup
Turntable
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
CAUTION

1-2-1 DVDN_ISP
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
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 spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, 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. Observe that the wires do not contact heat
producing parts (heat sinks, oxide metal film
resistors, fusible resistors, etc.).
G. Check that replaced wires do not contact sharp
edges or pointed parts.
H. When a power cord has been replaced, check 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. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.

1-2-2 DVDN_ISP
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
Note: This table is unofficial and for reference only. Be
sure to confirm the precise values.
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.
Table 2: Leakage current ratings for selected areas
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Clearance Distance (d), (d’)
120 V ≥3.2 mm (0.126 inches)
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V 0.15 µF CAP. & 1.5 kΩRES.
Connected in parallel i ≤0.5 mA Peak Exposed accessible parts
Chassis or Secondary Conductor
Primary Circuit
Fig. 1
d' d
AC Voltmeter
(High Impedance)
Exposed Accessible Part
BEarth Ground
Power Cord Plug Prongs
Z
Fig. 2

1-3-1 DVDN_PC_SN
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
3. The 1st pin of every male connector is indicated as
shown.
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.
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
Information about lead-free soldering
Philips CE is producing lead-free sets from 1.1.2005
onwards.
IDENTIFICATION
Regardless of special logo (not always
indicated)
One must treat all sets from
onwards, according to the next rule:
Serial Number gives a 9-digit. Digit 2&3 shows the
WEEK, and digit 4 shows the YEAR.
So from onwards=from 1 Jan 2005 onwards
Important note:In fact also products of year 2004
must be treated in this way as long as you avoid
mixing solder-alloys (leaded/ lead-free). So best to
always use SAC305 and the higher temperatures
belong to this.
Due to lead-free technology some rules have to be
respected by the workshop during a repair:
•Use only lead-free solder alloy Philips SAC305 with
order code 0622 149 00106. If lead-free solder-
paste is required, please contact the manufacturer
of your solder-equipment. In general use of solder-
paste within workshops should be avoided because
paste is not easy to store and to handle.
•Use only adequate solder tools applicable for lead-
free solder alloy. The solder tool must be able
•To reach at least a solder-temperature of 400°C,
•To stabilize the adjusted temperature at the solder-
tip
•To exchange solder-tips for different applications.
•Adjust your solder tool so that a temperature around
360°C - 380°C is reached and stabilized at the
solder joint. Heating-time of the solder-joint should
not exceed ~ 4 sec. Avoid temperatures above
400°C otherwise wear-out of tips will rise drastically
and flux-fluid will be destroyed. To avoid wear-out of
tips switch off un-used equipment, or reduce heat.
•Mix of lead-free solder alloy / parts with leaded
solder alloy / parts is possible but PHILIPS
recommends strongly to avoid mixed solder alloy
types (leaded and lead-free).
If one cannot avoid or does not know whether
product is lead-free, clean carefully the solder-joint
from old solder alloy and re-solder with new solder
alloy (SAC305).
•Use only original spare-parts listed in the Service-
Manuals. Not listed standard-material (commodities)
has to be purchased at external companies.
Top View
Out In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
1 Jan 2005
015

1-3-2 DVDN_PC_SN
•Special information for BGA-ICs:
- always use the 12nc-recognizable soldering
temperature profile of the specific BGA (for de-
soldering always use the lead-free temperature
profile, in case of doubt)
- lead free BGA-ICs will be delivered in so-called
'dry-packaging' (sealed pack including a silica gel
pack) to protect the IC against moisture. After
opening, dependent of MSL-level seen on indicator-
label in the bag, the BGA-IC possibly still has to be
baked dry. (MSL=Moisture Sensitivity Level). This
will be communicated via AYS-website.
Do not re-use BGAs at all.
•For sets produced before 1.1.2005 (except products
of 2004), containing leaded solder-alloy and
components, all needed spare-parts will be available
till the end of the service-period. For repair of such
sets nothing changes.
•On our website
www.atyourservice.ce.Philips.com you find more
information to:
•BGA-de-/soldering (+ baking instructions)
•Heating-profiles of BGAs and other ICs used in
Philips-sets
You will find this and more technical information within
the “magazine”, chapter “workshop news”.
For additional questions please contact your local
repair-helpdesk.
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)
2. Remove the flat pack-IC with tweezers while
applying 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
tweezers. (Fig. S-1-6)
CAUTION:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. 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)
Fig. S-1-1

1-3-3 DVDN_PC_SN
3. 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.
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)
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)
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
tweezers. (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.
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
tweezers. (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.
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
To Solid
Mounting Point
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6

1-3-4 DVDN_PC_SN
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 “●” 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.
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 (1 MΩ) 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 (1 MΩ) 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.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark. Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
<Incorrect>
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
<Correct>
CBA

1-4-1 E8E20FIS
FUNCTION INDICATOR SYMBOLS
Note:
If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [STANDBY-ON] button, an error message is displayed on the TV screen for 5 seconds.
TV screen
When reel or capstan mechanism is not functioning
correctly
When tape loading mechanism is not functioning cor-
rectly
When cassette loading mechanism is not functioning
correctly
When the drum is not working properly
P-ON Power safety detection
MODE INDICATOR ACTIVE
When reel or capstan mechanism is not
functioning correctly “AR” is displayed on a TV screen. (Refer to Fig. 1.)
When tape loading mechanism is not func-
tioning correctly “AT” is displayed on a TV screen. (Refer to Fig. 2.)
When cassette loading mechanism is not
functioning correctly “AC” is displayed on a TV screen. (Refer to Fig. 3.)
When the drum is not working properly “AD” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON Power safety detection “AP” is displayed on a TV screen. (Refer to Fig. 5.)
AR
Fig. 1
AT
Fig. 2
AC
Fig. 3
Fig. 4
AD
AP
Fig. 5

1-5-1 E8E20PFS
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, connect TP502 (S-INH) 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.
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.
Fig. 1
Q504
Q503
S-INH

1-6-1 E8E20IB
OPERATING CONTROLS AND FUNCTIONS
• The DVD S-VIDEO OUT,
DVD COMPONENT
VIDEO OUT, DVD
AUDIO OUT and DVD
COAXIAL DIGITAL
AUDIO OUT jacks are
only useful in DVD mode.
To have sound and picture
in VCR mode, you must
connect the audio/video
cables supplied.
Helpful Hint
• For DVD player features,
press DVD before
pressing other buttons.
To put the DVD/VCR in
DVD mode, press DVD
or SOURCE so DVD
light appears on the front
of the DVD/VCR.
• For VCR features, press
VCR before pressing
other buttons.To put the
DVD/VCR in VCR mode,
press VCR or SOURCE
so VCR light appears on
the front of the
DVD/VCR.
Helpful Hints
STOP PLAY REW F.FWD PLAY REC TRACKINGSTOP/EJECT
VIDEO AUDIOLR
ONE TOUCHRECORDING • LONG PLAY
SOURCE
STANDBY-ON
VCR DVD
DVD
DVD PLAYER /VCR DVP3345V
OPEN/CLOSE
VCR AUDIO and
VIDEO IN jacks (L2)
ySTANDBY-ON Button
REW hButton (VCR)
F.FWD gButton (VCR)
STOP/EJECT CA Button (VCR) PLAY BButton (VCR)
REC I
Button (VCR)
SOURCE Button
STOP CButton (DVD)
PLAY BButton (DVD)
OPEN/CLOSE AButton (DVD)
TRACKING
K / L ButtonsRemote Sensor
DIGITAL
AUDIO OUT
COAXIAL
AUDIO
OUT
DVD
L
R
L
R
L
R
S-VIDEO
OUT
COMPONENT
VIDEO OUT
Y
C
B /
P
B
AUDIO OUT
DVD/VCR VCR
VIDEO OUT
AUDIO IN
VIDEO IN
C R /
P R
DVD/VCR AUDIO and VIDEO OUT jacks
DVD COMPONENT
VIDEO OUT jacks
DVD AUDIO
OUT jacks
AC Power Cord
DVD COAXIAL
DIGITAL AUDIO
OUT jack
DVD S-VIDEO
OUT jack
VCR AUDIO and
VIDEO IN jacks (L1)
DVDVCR SETUP
INPUT MENU
REC SPEED MODE
ANGLE SEARCH REPEAT
DISPLAY SUBTITLE ZOOM
TIMER SET
REPEAT
A-B
AUDIO
BACKPAUSESTOP
PLAY
OK
FFW
REW
CLEAR TITLE
DISC
TRACKING
OPEN/CLOSE
12
6
5
4
789
0
+10
3
SEARCH Button
SUBTITLE Button
SETUP Button
VCR Button
INPUT Button
s BKL Buttons
REW hButton
STOP CButton
PLAY BButton
ANGLE Button
y(
STANDBY-ON ) Button
OPEN/CLOSE 0Button
TITLE Button
CLEAR Button
DVD Button
DISC MENU Button
OK Button
PAUSE kButton
FFW gButton
REC IButton
w(SKIP) Button ∑(SKIP) Button
DISPLAY Button
SPEED Button
Number Buttons
AUDIO Button
MODE Button
TRACKING KL Button
ZOOM Button
TIMER SET Button
REPEAT Button
A-B REPEAT Button
BACK Button
Front Panel
Rear Panel
Remote Control

1-7-1 E8E20SNA
SIGNAL NAME ABBREVIATIONS
Signal Name Function
-FL FIP Drive Power Supply
3.58MHz 3.58MHz Clock
A-COM Audio Head Common
AE-H Audio Erase Head
AE-H/FE-H Audio Erase Head / Full Erase
Head
AFCC Low Path Filter Input Signal For
AFC
AFCLPF Low Path Filter Output Signal For
AFC
AFG Ground
AL+12V Always +12V with AC Plug
Connected
AL+18V Always +18V with AC Plug
Connected
AL+2.8V Always +2.8V with AC Plug
Connected
AL+44V Always +44V with AC Plug
Connected
AL+4V Always +4V with AC Plug
Connected
AL+5V Always +5V with AC Plug
Connected
AL-30V Always -30V with AC Plug
Connected
AUDIO(L)-IN Audio Left Signal Input
AUDIO(L)-IN-F Audio Left Signal Input
AUDIO(L)-OUT Audio Left Signal Output
AUDIO(R)-IN Audio Right Signal Input
AUDIO(R)-IN-F Audio Right Signal Input
AUDIO(R)-OUT Audio Right Signal Output
AUDIO-MUTE-H Audio Mute Control Signal (Mute =
“H”)
AUDIO-PB/REC Normal Audio Play Back / Record
Signal
AVDD Always +5V with AC Plug
Connected
AVSS Ground
BUFFER+9V Buffer +9V Power Supply
C-CONT Capstan Motor Control Signal
C-F/R Capstan Motor FWD/REV Control
Signal (FWD = “L” / REV = “H”)
C-FG Capstan Motor Rotation Detection
Pulse
C-ROTA Color Phase Rotary Changeover
Signal
C-SYNC Composite Synchronized Pulse
CTL Amp. Output Control Signal for Test
Point
CTL (+) Playback/Record Control Signal (+)
CTL (-) Playback/Record Control Signal (-)
CTLA CTL Amp. AC Ground
D-CONT Drum Motor Control Signal
D-PFG Drum PG/FG Input Signal
D-REC-H Delayed Record Signal
D-V SYNC Dummy V-sync Output
DISPLAY- CLK FL Display Driver IC Clock Control
Output Signal
DISPLAY-DATA FL Display Driver IC Data Control
Output Signal
DISPLAY-ENA FL Display Driver IC Enable Control
Output Signal
DVD-AUDIO(L) DVD Audio Left Signal
DVD-AUDIO(R) DVD Audio Right Signal
DVD-AUDIO-
MUTE DVD Audio Mute Control Signal
DVD-LED-L DVD Mode LED Signal Output
DVD-OPEN/
CLOSE DVD Open/Close at High
DVD-P-ON+12V +12V at DVD Power-On Signal
DVD-P-
ON+3.3V +3.3V at DVD Power-On Signal
DVD-P-ON+5V +5V at DVD Power-On Signal
DVD-PLAY DVD Play at High
DVD-POW-
MONITOR
DVD Power Monitor Signal (P-off =
“L”,
P-on = “H”)
DVD-POWER DVD Power Control Signal
DVD-STOP DVD Stop at High
DVD-VIDEO DVD Video Control Signal
END-S Tape End Position Detect Signal
EV+1.2V +1.2V Power Supply
EV+11V +11V Power Supply
EV+3.3V +3.3V Power Supply
F1 Filament Power Supply 1
F2 Filament Power Supply 2
FE-H Full Erase Head
FE-H-GND Full Erase Head Ground
FP-CLK FP Clock Input
FP-DIN FP Serial Data Input
FP-DOUT FP Serial Data Output
FP-STB FP Serial Interface Strobe
H-A-COMP Head Amp Comparator Signal
H-A-SW Video Head Amp Switching Pulse
Hi-Fi-AUDIO(L) Hi-Fi Audio Left Head
Hi-Fi-AUDIO(R) Hi-Fi Audio Right Head
Signal Name Function

1-7-2 E8E20SNA
Hi-Fi-COM Hi-Fi Audio Head Common
Hi-Fi-H-SW Hi-Fi Audio Head Switching Pulse
Hi-Fi/NOR-IN Audio Mode Input (HiFi = “L” /
Normal = “H”)
I/P-SW Interlace / Progressive Data Output
IIC-BUS SCL IIC BUS Control Clock
IIC-BUS SDA IIC BUS Control Data
KEY-1 Key Data Input 1
KEY-2 Key Data Input 2
LD-SW Deck Mode Position Detector
Signal
LM-FWD/ REV Loading Motor FWD/ REV Output
N-A-IN Normal Audio Input
N-A-OUT Normal Audio Output
NORMAL-L Normal Audio Control Signal
(Normal = “L”)
OSCI Main Clock Input 14.31818MHz
OSCO Main Clock Output 14.31818MHz
OUTPUT-
SELECT Output Select (DVD=”L”/VCR=”H”)
OUTPUT-
SELECT(1) Output Select Control Signal(1)
OUTPUT-
SELECT(2) Output Select Control Signal(2)
P-DOWN-H Power Voltage Down Detector
Signal
P-ON+5V +5V at Power-On Signal
P-ON+9V +9V at Power-On Signal
P-ON-L Power On Signal to Low
PG-DELAY Video Head Switching Pulse Signal
Adjusted Voltage
POWER-LED Power LED Control Signal
POWER-
SAFETY Power Supply Safety Signal
PWRCON Power Down
REC-SAF-SW
Recording Safety SW Detect (With
Record tab = “L” / With out Record
tab = “H”)
REMOTE Remote Signal Input
REMOTE-DVD Remote Signal Input
REMOTE-DVD-
IN Remote Signal Input
REMOTE-
VIDEO Remote Signal Input
RESET Micro Controller Reset Signal
RF-SW Video Head Switching Pulse
SPDIF Digital Audio Interface Format
Signal
ST-S Tape Start Position Detector Signal
SXI Operation Mode Selecting Input
Signal
Signal Name Function
T-REEL Take Up Reel Rotation Signal
TIMER+5V +5V Power Supply (Timer)
V-ENV Video Envelope Comparator Signal
VCR-LED-L VCR Mode LED Signal Output
VDD Always +5V with AC Plug
Connected
VDD2 Always +5V with AC Plug
Connected
VIDEO Video Signal
VIDEO(L)-1 Video Left Head 1
VIDEO(L)-2 Video Left Head 2
VIDEO(R)-1 Video Right Head 1
VIDEO(R)-2 Video Right Head 2
VIDEO-C S-Video (Chrominance) Signal
VIDEO-COM Video Head Common Terminal
VIDEO-IN Composite Video Signal Input
VIDEO-IN-F Video Signal Input (Front)
VIDEO-OUT Composite Video Signal Output
VIDEO-Pb/Cb Component Video Signal (Pb/Cb)
VIDEO-Pb/Cb-
OUT
Component Video Signal (Pb/Cb)
Output
VIDEO-Pr/Cr Component Video Signal (Pr/Cr)
VIDEO-Y(I) S-Video (Luminance)
Signal (Interlace)
VIDEO-Y(I/P) Component Video (Luminance)
Signal (Interlace / Progressive)
VRI Servo Standard Voltage Input
VRO Servo Standard Voltage Output
VSS Ground
VSS2 Ground
XI Main Clock Input
XO Main Clock Output
YCA-CS YCA IC Chip Select
YCA-SCL YCA IC Serial Clock
YCA-SDA YCA IC Serial Data
Signal Name Function

1-8-1 E8E20DC
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.
2. Disassembly Method
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,
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)
(5) Refer to “Reference Notes.”
Reference Notes
1. CAUTION 1: Locking Tabs (L-1) and (L-2) are
fragile. Be careful not to break them.
1) Release three Locking Tabs (L-1).
2) Release three Locking Tabs (L-2), then remove
the Front Assembly.
2. 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.
1) Disconnect Connector (CN301). Remove
Screws (S-6) and lift the DVD Main CBA Unit.
(Fig. D4)
2) Short the three short lands of FPC cable with
solder before removing the FFC cable (CN201)
from it. If you disconnect the FFC cable
(CN201), the laser diode of pickup will be
destroyed. (Fig. D4)
3. CAUTION 3: When reassembling, confirm the
FFC cable (CN201) is connected completely. Then
remove the solder from the three short lands of
FPC cable. (Fig. D4)
4. When reassembling, solder wire jumpers as
shown in Fig. D6.
5. Before installing the Deck Assembly, be sure to
place the pin of LD-SW on Main CBA as shown in
Fig. D6. Then, install the Deck Assembly while
aligning the hole of Cam Gear with the pin of LD-
SW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D6.
ID/
Loc.
No.
Part
Removal
Fig.
No.
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
Note
[1] Top Case D1 4(S-1) ---
[2] Front
Assembly D2 *3(L-1), *3(L-2) 1
[3] Top Bracket D2 3(S-2) ---
[4]
DVD
Mechanism
Assembly
D3 4(S-3), *CN401,
*CN601 ---
[5] Partition
Plate D3 2(S-4) ---
[6] Loader
Holder D3 2(S-5) ---
[7] DVD Main
CBA Unit D4 2(S-6), *CN201, *CN301 2, 3
[8]
VCR
Chassis
Unit
D5 5(S-7), 2(S-8) ---
[9] Deck
Assembly D6 Desolder, 2(S-9), (S-10) 4,5
[10] DVD Open/
Close CBA D6 Desolder ---
[11] Power SW
CBA D6 Desolder ---
[1] Top Case
[2] Front Assembly
[3] Top Bracket
[4] DVD Mechanism Assembly [7] DVD Main CBA Unit
[5] Partition Plate
[6] Loader Holder
[8] VCR Chassis Unit
[9] Deck Assembly
[10] DVD Open/Close CBA
[11] Power SW CBA
[12] Main CBA
[12] Main CBA D6 ---------- ---
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
ID/
Loc.
No.
Part
Removal
Fig.
No.
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
Note

1-8-2 E8E20DC
(S-1)
[1] Top Case
Fig. D1
(L-1)
(L-2)
(L-1)
[2] Front
Assembly
Fig. D2
(S-2)
(S-2)
[3] Top Bracket
Fig. D3
CN401
CN601
(S-3)
(S-3)
(S-3)
(S-4)
(S-5)
[5] Partition Plate
[6] Loader
Holder
[4] DVD
Mechanism
Assembly
CN201
CN301
(S-6)
[7] DVD Main
CBA Unit
DVD Mechanism
A
Fig. D4
View for A
Short the three short lands by soldering.
(Either of two places.)
Connector

1-8-3 E8E20DC
Fig. D5
(S-7)
(S-7)
(S-8)
[8] VCR Chassis Unit
(S-7)
(S-8)

1-8-4 E8E20DC
Fig. D6
(S-9)
(S-10)
(S-9)
[10] DVD
Open/Close CBA
FE Head
Cylinder
Assembly
ACE Head
Assembly
Desolder
Lead with
blue stripe
From
FE Head
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
Desolder
From
Capstan
Motor
Assembly
Printing side
Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly Lead with
blue stripe
Lead with
blue stripe
Desolder
Lead with
red stripe
[12] Main CBA
SW512
LD-SW
LD-SW Pin
Hole
Hole
Shaft
Cam Gear
[12] Main CBA
[9] Deck Assembly
Pin
[12] Main CBA
[9] Deck Assembly
[11] Power
SW CBA
Desolder
Lead with blue stripe

1-8-5 E8E20DC
3. HOW TO EJECT MANUALLY
1. Remove the Top Case, Front Assembly and Top Bracket.
2. Remove four Screws (S-3) in Fig. D3. Do not disconnect connectors.
3. While lifting up the DVD Mechanism, rotate the roulette in the direction of the arrow as shown below.
4. Pull the tray slowly manually.
The gear is turned to the direction of the arrow.
The Back of DVD Mechanism Assembly
DVD Mechanism

1-9-1 E8E20EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: “CBA” is 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 [TRACKING
L] or [TRACKING K] button on the front panel
first, then the [PLAY] button on the front panel.
Test Equipment Required
1. Oscilloscope: Dual-trace with 10:1 probe,
V-Range: 0.001~50 V/Div.,
F-Range: DC~AC-20 MHz
2. Alignment Tape (VFMS0001H6)
Head Switching Position
Adjustment
Purpose: To determine the Head Switching position
during playback.
Symptom of Misadjustment: May cause Head
Switching noise or vertical jitter in the picture.
Note: TP751(V-OUT), TP302(RF-SW),
VR501(Switching Point) --- Main CBA
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 ± 1H (412.7 µs ± 63.5 µs)
delayed position from the rising edge of the CH2 head
switching pulse waveform.
Test point Adj. Point Mode Input
TP751(V-OUT)
TP302(RF-SW)
GND
VR501
(Switching Point)
PLAY
(SP) -----
Tape Measurement
Equipment Spec.
VFMS0001H6 Oscilloscope 6.5H ± 1H
(412.7µs±63.5µs)
Connections of Measurement Equipment
Figure 1
Oscilloscope
Main CBA
TP751
CH1 CH2
Trig. (+)
GND
TP302
EXT. Syncronize Trigger Point
1.0H
CH1
CH2
Switching Pulse
V-Sync
0.5H
6.5H±1H (412.7µs±63.5µs)