Philips DVP-3345/17 Schematic
DVD + VCR Combi DVP3345V/17
Service
Service
DVD PLAYER/VCR DVP3345V
DVD
Service
STANDBY-ON
VIDEO AUDIOLR
REW F.FWD PLAY
ONE TOUCH RECORDING LONG PLAY
REC TRACKINGSTOP/EJECT
OPEN/CLOSE
VCR DVD
SOURCE
STOP PLAY
Service 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
c Copyright 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.
Published by FU0738 AV Systems Printed in The Netherlands Subject to modification
Survey of versions:
/17 NTSC
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
KLASS 1 LASER APPARAT
CLASSE 1 PRODUIT LASER
EN 3139 785 32900
Version 1.0
MAIN SECTION
DVD 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
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
Manufactured under license from Dolby Laboratories.
“Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
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 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.
Drive Mechanism
Assembly
Laser Beam Radiation
Laser Pickup
Turntable
WHEN OPEN. DO NOT
CAUTION
LASER RADIATION
STARE INTO BEAM.
Location: Top of DVD mechanism.
1-1-1 DL8NLSP
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.
1-2-1 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
Chassis or Secondary Conductor
Primary Circuit
AC Line Voltage Clearance Distance (d), (d’)
120 V ≥ 3.2 mm (0.126 inches)
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.
d' d
Fig. 1
Exposed Accessible Part
Z
AC Voltmeter
(High Impedance)
Earth Ground
B
Power Cord Plug Prongs
Table 2: Leakage current ratings for selected areas
AC Line Voltage Load Z Leakage Current (i) Earth Ground (B) to:
120 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
0.15 µF CAP. & 1.5 kΩ RES.
Connected in parallel
i ≤ 0.5 mA Peak Exposed accessible parts
1-2-2 DVDN_ISP
Fig. 2
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is
indicated as shown.
Top View
Out
2. For other ICs, pin 1 and every fifth pin are
indicated as shown.
Pin 1
3. The 1st pin of every male connector is indicated as
shown.
Pin 1
Input
In
Bottom View
5
10
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.
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
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 solderpaste is required, please contact the manufacturer
of your solder-equipment. In general use of solderpaste 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-
• To exchange solder-tips for different applications.
• Adjust your solder tool so that a temperature around
360°C
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.
015
: In fact also products of year 2004
tip
- 380°C is reached and stabilized at the
1 Jan 2005
1-3-1 DVDN_PC_SN
• Special information for BGA-ICs:
- always use the 12nc-recognizable soldering
temperature profile of the specific BGA (for desoldering 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 indicatorlabel 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
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.
you find more
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
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)
1-3-2 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.
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Machine
Flat Pack-IC
Tweezers
Fig. S-1-2
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)
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 Blower
Flat Pack-IC
Desoldering Braid
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
To Solid
Mounting Point
CBA
Tweezers
or
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Flat Pack-IC
Fig. S-1-6
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)
1-3-3 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.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Instructions for Handling Semiconductors
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.
<Incorrect>
CBA
Presolder
Flat Pack-IC
Fig. S-1-8
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-3-4 DVDN_PC_SN
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.
MODE INDICATOR ACTIVE
When reel or capstan mechanism is not
functioning correctly
When tape loading mechanism is not functioning correctly
When cassette loading mechanism is not
functioning correctly
When the drum is not working properly
P-ON Power safety detection
“A R” is displayed on a TV screen. (Refer to Fig. 1.)
“A T” is displayed on a TV screen. (Refer to Fig. 2.)
“A C” is displayed on a TV screen. (Refer to Fig. 3.)
“A D” is displayed on a TV screen. (Refer to Fig. 4.)
“A P” is displayed on a TV screen. (Refer to Fig. 5.)
TV screen
When reel or capstan mechanism is not functioning
correctly
A
R
Fig. 1
When the drum is not working properly
A
D
Fig. 4
When tape loading mechanism is not functioning correctly
A
T
Fig. 2
When cassette loading mechanism is not functioning
correctly
A
C
Fig. 3
P-ON Power safety detection
A
P
Fig. 5
1-4-1 E8E20FIS
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.
Q503
Q504
S-INH
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.
1-5-1 E8E20PFS
OPERATING CONTROLS AND FUNCTIONS
Front Panel
ySTANDBY-ON Button
ONE TOUCH RECORDING • LONG PLAY
REC TRACKINGSTOP/EJECT
VCR AUDIO and
STANDBY-ON
VIDEO AUDIOLR
REW F.FWD PLAY
VIDEO IN jacks (L2)
REW h Button (VCR)
F.FWD g Button (VCR)
REC I
Button (VCR)
STOP/EJECT C A Button (VCR) PLAY B Button (VCR)
Rear Panel
DVD/VCR AUDIO and VIDEO OUT jacks
DVD COMPONENT
VIDEO OUT jacks
AC Power Cord
DVD COAXIAL
DIGITAL AUDIO
OUT jack
DVD
DIGITAL
AUDIO OUT
COAXIAL
COMPONENT
AUDIO
S-VIDEO
VIDEO OUT
OUT
OUT
L
R
DVD S-VIDEO
OUT jack
DVD AUDIO
OUT jacks
Y
B
/
C
B
P
CR/
P
R
VCR AUDIO and
VIDEO IN jacks (L1)
DVD/VCR
VCR
AUDIO IN
AUDIO OUT
LRL
R
VIDEO OUT
VIDEO IN
TRACKING
OPEN/CLOSE
VCR DVD
SOURCE
K/L
ButtonsRemote Sensor
OPEN/CLOSE A Button (DVD)
DVD PLAYER/VCR DVP3345V
STOP PLAY
DVD
PLAY B Button (DVD)
STOP C Button (DVD)
SOURCE Button
Helpful Hint
• 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.
Remote Control
Number Buttons
VCR Button
SETUP Button
INPUT Button
s B KL Buttons
w (SKIP) Button
REW h Button
PLAY B Button
STOP C Button
DISPLAY Button
SUBTITLE Button
ANGLE Button
SEARCH Button
REC I Button
SPEED Button
3
5
6
9
8
CLEAR TITLE
0
PLAYOKFFW
OPEN/CLOSE
12
4
7
+10
INPUT MENU
REW
DISPLAY SUBTITLE ZOOM
ANGLE SEARCH REPEAT
REC SPEED MODE
TRACKING
DVDVCR SETUP
DISC
BACKPAUSESTOP
AUDIO
REPEAT
A-B
TIMER SET
y (
STANDBY-ON
) Button
OPEN/CLOSE 0 Button
TRACKING KL Button
TITLE Button
CLEAR Button
DVD Button
DISC MENU Button
OK Button
∑ (SKIP) Button
FFW g Button
BACK Button
PAUSE k Button
AUDIO Button
ZOOM Button
A-B REPEAT Button
REPEAT Button
TIMER SET Button
MODE Button
Helpful Hints
• 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.
1-6-1 E8E20IB
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
AFCC
AFCLPF
AFG Ground
AL+12V
AL+18V
AL+2.8V
AL+44V
AL+4V
AL+5V
AL-30V
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-PB/REC
AVD D
AVSS Ground
BUFFER+9V Buffer +9V Power Supply
C-CONT Capstan Motor Control Signal
C-F/R
C-FG
C-ROTA
C-SYNC Composite Synchronized Pulse
CTL
Audio Erase Head / Full Erase
Head
Low Path Filter Input Signal For
AFC
Low Path Filter Output Signal For
AFC
Always +12V with AC Plug
Connected
Always +18V with AC Plug
Connected
Always +2.8V with AC Plug
Connected
Always +44V with AC Plug
Connected
Always +4V with AC Plug
Connected
Always +5V with AC Plug
Connected
Always -30V with AC Plug
Connected
Audio Mute Control Signal (Mute =
“H”)
Normal Audio Play Back / Record
Signal
Always +5V with AC Plug
Connected
Capstan Motor FWD/REV Control
Signal (FWD = “L” / REV = “H”)
Capstan Motor Rotation Detection
Pulse
Color Phase Rotary Changeover
Signal
Amp. Output Control Signal for Test
Point
Signal Name Function
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
DISPLAY-DATA
DISPLAY-ENA
DVD-AUDIO(L) DVD Audio Left Signal
DVD-AUDIO(R) DVD Audio Right Signal
DVD-AUDIOMUTE
DVD-LED-L DVD Mode LED Signal Output
DVD-O P E N/
CLOSE
DVD-P-ON+12V +12V at DVD Power-On Signal
DVD-P ON+3.3V
DVD-P-ON+5V +5V at DVD Power-On Signal
DVD-P L AY DVD Play at High
DVD-P OWMONITOR
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
FL Display Driver IC Clock Control
Output Signal
FL Display Driver IC Data Control
Output Signal
FL Display Driver IC Enable Control
Output Signal
DVD Audio Mute Control Signal
DVD Open/Close at High
+3.3V at DVD Power-On Signal
DVD Power Monitor Signal (P-off =
“L”,
P-on = “H”)
1-7-1 E8E20SNA
Signal Name Function
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
OUTPUTSELECT
OUTPUT-
SELECT(1)
OUTPUT-
SELECT(2)
P-DOWN-H
Output Select (DVD=”L”/VCR=”H”)
Output Select Control Signal(1)
Output Select Control Signal(2)
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
POWERSAFETY
Power Supply Safety Signal
PWRCON Power Down
Recording Safety SW Detect (With
REC-SAF-SW
Record tab = “L” / With out Record
tab = “H”)
REMOTE Remote Signal Input
REMOTE-DVD Remote Signal Input
REMOTE-DVDIN
REMOTEVIDEO
Remote Signal Input
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
VDD2
Always +5V with AC Plug
Connected
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/CbOUT
Component Video Signal (Pb/Cb)
Output
VIDEO-Pr/Cr Component Video Signal (Pr/Cr)
VIDEO-Y(I)
VIDEO-Y(I/P)
S-Video (Luminance)
Signal (Interlace)
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
1-7-2 E8E20SNA
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 Case
[2] Front Assembly
[3] Top Bracket
[4] DVD Mechanism Assembly
[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
[7] DVD Main CBA Unit
2. Disassembly Method
ID/
Loc.
No.
[1] Top Case D1 4(S-1) ---
[2]
[3] Top Bracket D2 3(S-2) ---
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
Part
Front
Assembly
DVD
Mechanism
Assembly
Partition
Plate
Loader
Holder
DVD Ma i n
CBA Unit
VCR
Chassis
Unit
Deck
Assembly
DVD Open/
Close CBA
Power SW
CBA
Fig.
No.
D2 *3(L-1), *3(L-2) 1
4(S-3), *CN401,
D3
*CN601
D3 2(S-4) ---
D3 2(S-5) ---
2(S-6), *CN201,
D4
*CN301
D5 5(S-7), 2(S-8) ---
Desolder,
D6
2(S-9), (S-10)
D6 Desolder ---
D6 Desolder ---
Removal
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
Note
---
2, 3
4,5
ID/
Loc.
No.
[12] Main CBA D6 ---------- ---
↓
(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,
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.”
Part
↓
(2)
Fig.
No.
↓
(3)
Removal
Remove/*Unhook/
Unlock/Release/
Unplug/Desolder
↓
(4)
Note
↓
(5)
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 LDSW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D6.
1-8-1 E8E20DC
[1] Top Case
(S-1)
[4] DVD
Mechanism
Assembly
[6] Loader
Holder
(S-3)
(S-5)
CN401
CN601
(S-3)
(S-3)
(S-4)
(L-1)
(L-2)
(S-2)
[3] Top Bracket
(L-1)
Fig. D1
(S-2)
[2] Front
Assembly
[7] DVD Main
CBA Unit
DVD Mechanism
CN301
[5] Partition Plate
Fig. D3
(S-6)
CN201
A
Fig. D2
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
Fig. D4
1-8-2 E8E20DC
(S-7)
(S-8)
(S-7)
(S-7)
(S-8)
[8] VCR Chassis Unit
Fig. D5
1-8-3 E8E20DC
FE Head
Cylinder
Assembly
ACE Head
Assembly
Pin
Lead with blue stripe
Desolder
[11] Power
SW CBA
(S-9)
[10] DVD
Open/Close CBA
[9] Deck Assembly
(S-9)
[12] Main CBA
(S-10)
Desolder
Lead with
blue stripe
From
ACE Head
Assembly
[12] Main CBA
[9] Deck Assembly
Shaft
Hole
LD-SW
Lead with
blue stripe
Lead with
blue stripe
From
Cylinder
Assembly
Desolder
From
FE Head
SW512
LD-SW
Cam Gear
Hole
Pin
[12] Main CBA
Lead with
red stripe
Desolder
Printing side
From
Capstan
Motor
Assembly
Desolder
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
1-8-4 E8E20DC
Fig. D6
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.
DVD Mechanism
The Back of
DVD Mechanism Assembly
1-8-5 E8E20DC
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.
Test point Adj. Point Mode Input
TP751(V-OUT)
TP302(RF-SW)
GND
Tape
VFMS0001H6 Oscilloscope
Connections of Measurement Equipment
Main CBA
VR501
(Switching Point)
Measurement
Equipment
TP751
GND
TP302
PLAY
(SP)
6.5H ± 1H
(412.7µs±63.5µs)
Oscilloscope
-----
Spec.
CH1 CH2
Trig. (+)
Figure 1
EXT. Syncronize Trigger Point
CH1
CH2
Note: TP751(V-OUT), TP302(RF-SW),
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.
1.0H
6.5H±1H (412.7µs±63.5µs)
Switching Pulse
VR501(Switching Point) --- Main CBA
0.5H
V-Sync
1-9-1 E8E20EA
HOW TO INITIALIZE THE DVD PLAYER & VCR
To put the program back at the factory-default,
initialize the DVD player & VCR as the following
procedure.
< DVD Section >
1. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. a appears on the screen.
"
" differs depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. a
"
" differs depending on the models.
*******
2. Press [CLEAR] button on the remote control unit.
Fig. b appears on the screen.
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. b
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
3. To exit this mode, press [ ] button.
1-10-1 E8E20INT
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
[DVD], [9], [8], [7], [6], and [SEARCH] 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.
"
" differ depending on the models.
*******
F/W Version Up Mode Model No : *******
Please insert a DISC
for F/W Version Up.
VERSION : *.**
EXIT: POWER
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.
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. If you enter the F/W for
different models, “Disc Error” will appear on the
screen, then the tray will open automatically.
"
" differs depending on the models.
*******
(*1)
F/W Version Up Mode Model No : *******
VERSION : ************.***
Reading...
VERSION : *.**
5. After programming is finished, the tray opens
automatically. Fig. e appears on the screen and
the checksum in (*2) of Fig. e appears on the VFD
(Fig. f).
"
" differs depending on the models.
*******
F/W Version Up Mode
VERSION : ************.ab7
Completed
SUM : 7ABC
Model No : *******
VERSION : *.**
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programming Mode (Example)
At this time, no button is available.
6. Remove the disc on the tray.
7. Unplug the AC cord from the AC outlet. Then plug
it again.
8. Turn the power on by pressing the [ ] button and
the tray will close.
9. Press [DVD], [1], [2], [3], [4], and [DISPLAY]
buttons on the remote control unit in that order.
Fig. g appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
Fig. c Programming Mode Screen
Fig. d VFD in Programming Mode (Example)
The appearance shown in (*1) of Fig. c is
described as follows:
No. Appearance State
1 Reading... Sending files into the memory
2 Erasing... Erasing previous version data
3 Programming... Writing new version data
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
1-11-1 E8E20FW
10. Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. h
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
11. To exit this mode, press [ ] button.
1-11-2 E8E20FW
1 Power Supply Section
FLOW CHART NO.1
The power cannot be turned on.
TROUBLESHOOTING
Is the fuse normal?
Ye s
Is normal state restored when once unplugged
power cord is plugged again after several seconds.
Ye s
Is the AL+5V line voltage normal?
Ye s
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?
Ye s
Check the circuit and service it if defective.
(IC1001, D1012, D1024)
No
No
No
No
See FLOW CHART No.2 <The fuse blows out.>
Check for lead or short-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, Q031, D035, D040)
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.
FLOW CHART NO.5
-FL is not outputted.
Is the supply voltage of -30V fed to the anode of
D1010?
Check for load circuit short-circuiting or leak, and
service it if defective.
(D013,D015,D016,D1008,D1010,D1016,D1020,IC1002,IC1004,Q055,Q056,Q063,Q1004,Q1006,Q1011)
No
Check D1010 and their periphery, and service it if
defective.
Ye s
1-12-1 E8E20TR
FLOW CHART NO.6
P-ON+9V is not outputted.
Is 11V voltage supplied to the collector of Q055?
Ye s
Is the "L" pulse inputted to the base of Q052?
Ye s
Is 10V voltage inputted to the base of Q055?
Ye s
Replace Q055.
FLOW CHART NO.7
P-ON+5V is not outputted. (P-ON+9V is outputted normally.)
Is 5V voltage supplied to the collector of Q056?
Ye s
Is the "H" pulse inputted into the base of Q056?
Ye s
Replace Q056.
FLOW CHART NO.8
TIMER+5V is not outputted. (AL+5V(1) is outputted normally.)
Is 4.5V voltage inputted to the base of Q063?
Ye s
Replace Q063.
No
No
No
No
No
No
Check D015, D031, C018, and their periphery,
and service it if defective.
Replace IC501.
Check Q052, D052 and their periphery, and
service it if defective.
Check D016, D1035, L009, C020, C021, and their
periphery, and service it if defective.
Check R057 and their periphery, and
service it if defective.
Check Q064, D062 and their periphery,
and service it if defective.
FLOW CHART NO.9
AL+18V is not outputted.
Is the supply voltage 44V fed the cathode of D013?
Ye s
Check D504, R092, R095, and service it if defective.
FLOW CHART NO.10
DVD-P-ON+12V is not outputted.
Is 12V voltage supplied to the emitter of Q1006?
Ye s
Is the "L" pulse (approximately 0V) outputted to
the collector of Q1005?
Ye s
Replace Q1006.
No
No
No
Check D013, C013 and their periphery, and
service it if defective.
Check D015, D031, C018 and their periphery,
and service it if defective.
Check Q1005 and PWRCON line, and service it if
defective.
1-12-2 E8E20TR
FLOW CHART NO.11
DVD-P-ON+3.3V is not outputted. (DVD-P-ON+12V is outputted normally.)
Is the "H" pulse (approximately 4V) inputted into
the base of Q1011?
Ye s
Replace Q1011.
FLOW CHART NO.12
DVD-P-ON+5V is not outputted. (DVD-P-ON+12V is outputted normally.)
Is the "H" pulse inputted to the base of Q1004?
Ye s
Replace Q1004.
FLOW CHART NO.13
EV+1.2V is not outputted.
Is 2.8V voltage supplied to Pin(4) of IC1002?
Ye s
Replace IC1002.
FLOW CHART NO.14
EV+3.3V is not outputted.
Is 4V voltage supplied to Pin(4) of IC1004?
Ye s
Replace IC1004.
No
No
No
No
Check R1077 and their periphery, and service it if
defective.
Check R1068 and their periphery, and service it if
defective.
Check D1020,C1014,L1020, C1015, and their
periphery, and service it if defective.
Check D1008, C1007, L1007, C1038 and their
periphery, and service it if defective.
FLOW CHART NO.15
The fluorescent display tube does not light up.
Is 3.3V voltage supplied to Pin(6, 24) of IC571?
Ye s
Is approximately -24V to -28V voltage supplied to
Pin(15) of IC571?
Ye s
Is there approximately 500kHz oscillation to
Pin(26) of IC571?
Ye s
Are the filament voltage applied between (1, 2)
and (29, 30) of the fluorescent display tube?
Also negative voltage applied between these pins
and GND?
No
No
No
No
Check the EV+3.3V line and service it if defective.
Check the -FL line and service it if defective.
Check R572, IC571 and their periphery, and
service it if defective.
Check the power circuit, D1016, D1017,
R1042, C1018 and their periphery, and
service it if defective.
1-12-3 E8E20TR
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 (SW2001-2003) normal?
Ye s
When pressing each key switches (SW2001,
SW2002, SW2003), do the voltage of each pin
of CN1001 (shown below) change to "H" (3.3V)
from "L" (0V)?
SW2001 → CN1001 24PIN
SW2002 → CN1001 26PIN
SW2003 → CN1001 25PIN
Ye s
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)?
Ye s
Is the "L" pulse sent out from Pin(1) terminal of the
RM2001 (remote control receiver) when the remote
control unit is activated?
Ye s
Is the "L" pulse signal supplied to Pin(22) of
CN1001?
Ye s
Replace the DVD Main CBA.
No
No
No
No
No
Re-install the key switches (SW2001, SW2002,
SW2003) correctly or replace the poor switch.
Check the key switches (SW2001, SW2002,
SW2003) and their periphery, and service it if
defective.
Operation is possible from the unit.)
Check AL+5V(1) line, and service it if defective.
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 CN1001, and
service it if defective.
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(24) on CN1001 become
to 3.3V from 0V when pressing "OPEN/CLOSE"
button on the unit?
Ye s
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. (It can not be done using the unit and the remote control unit.)
The [No Disc] indication.
Both picture and sound do not operate normally.
Replace the DVD Main CBA.
No improvement can be found.
Ye s
Replace the DVD Mechanism.
No
No
Replace the "OPEN/CLOSE" button (SW2001).
Original DVD Main CBA is poor.
1-12-4 E8E20TR
FLOW CHART NO.5
Picture does not appear normally.
Set the disc on the disc tray, and playback.
Are the video signals outputted to each pin of
CN1601?
CN1601 8PIN VIDEO-Y(I/P)
CN1601 6PIN VIDEO-Pb/Cb
CN1601 4PIN VIDEO-Pr/Cr
CN1601 1PIN VIDEO-Y(I)
CN1601 10PIN VIDEO-C
Ye s
Are the video signals shown above inputted into
each pin of IC1402 and IC1403?
IC1402 3PIN VIDEO-Y(I/P)
IC1402 6PIN VIDEO-Pb/Cb
IC1402 8PIN VIDEO-Pr/Cr
IC1403 3PIN VIDEO-Y(I)
IC1403 1PIN VIDEO-C
Ye s
Are the video signals outputted to each pin
of IC1402 and IC1403?
IC1402 13PIN VIDEO-Y(I/P)
IC1402 11PIN VIDEO-Pb/Cb
IC1402 10PIN VIDEO Pr/Cr
IC1403 5PIN VIDEO-Y(I)
IC1403 7PIN VIDEO-C
IC1403 6PIN DVD VIDEO
Ye s
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 component video signals outputted to the
VIDEO OUT terminal (JK1403)?
Are the composite video signals outputted to
the VIDEO OUT terminal (JK751)?
No
No
No
No
No
No
No
Replace the DVD Main CBA or the DVD
Mechanism.
Check the line between each pin of CN1601 and
each pin of IC1402 and IC1403, and service it if
defective.
CN1601 8PIN → IC1402 3PIN VIDEO-(I/P)
CN1601 6PIN → IC1402 6PIN VIDEO-Pb/Cb
CN1601 4PIN → IC1402 8PIN VIDEO-Pr/Cr
CN1601 1PIN → IC1403 3PIN VIDEO-Y(I)
CN1601 10PIN → IC1403 1PIN VIDEO-C
Check DVD-P-ON+5V line and service it if defective.
No
Is 5V voltage applied to the Pin(4, 12) of
IC1402 and Pin(4) of IC1403 ?
Ye s
Replace IC1402 or IC1403.
Check the periphery of JK1401 from
Pin (5) of IC1403 and service it if defective.
Check the periphery of JK1401 from
Pin (7) of IC1403 and service it if defective.
Check the periphery of JK1403 from Pins (10, 11,
13) of IC1402 and service it if defective.
Are the composite video signals outputted to
Pin(15) of IC751?
No
Are the "L" pulse inputted into Pins(9,10,11) of IC751?
No
Replace IC501.
Ye s
Ye s
Check the line between Pin(15) of IC751 and JK751
and service it if defective.
Replace IC751.
1-12-5 E8E20TR
FLOW CHART NO.6
Audio is not outputted.
Set the disc on the disc tray, and playback.
Are the analog audio signals outputted to each pin
of CN1601?
CN1601 12PIN DVD-AUDIO(L)
CN1601 14PIN DVD-AUDIO(R)
Ye s
Are the analog audio signals inputted to each pin
of IC1201.
IC1201 2PIN DVD-AUDIO(L)
IC1201 6PIN DVD-AUDIO(R)
Ye s
Is the "H" level mute signals outputted to Pin(13) of
CN1601?
Ye s
Are the analog audio signals outputted to each pin
of IC1201?
IC1201 1PIN DVD-AUDIO(L)
IC1201 7PIN DVD-AUDIO(R)
Ye s
Are the audio signals outputted to the specific
output terminal?
Are the audio signals outputted to the L/R OUT
terminal (JK756)?
Are the audio signals outputted to the L/R OUT
terminal (JK751)?
No
No
No
No
No
No
Replace the DVD Main CBA or the DVD Mechanism.
Check each line between each pin of CN1601
and each pin of IC1201, and service
it if defective.
CN1601 12PIN → IC1201 2PIN DVD-AUDIO(L)
CN1601 14PIN → IC1201 6PIN DVD-AUDIO(R)
Replace the DVD Main CBA or the DVD Mechanism.
Replace IC1201.
Check the periphery between Pins(1,7) of IC1201
and JK756, and service it if defective.
Are the audio signals outputted to Pin(4,14) of
IC751?
No
Are the "L" pulse inputted into Pins(9,10,11) of IC751?
No
Replace IC501.
Ye s
Ye s
Check the line between Pin(
and their periphery, and service it if defective.
Replace IC751.
4,14
) of IC751 and JK751
,
1-12-6 E8E20TR
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?
Ye s
Is the control voltage normally inputted into
Pins(66,67) of IC501?
Ye s
Replace IC501.
No
Re-install some key switches correctly or
replace some key switches.
No
Check the key switches and their periphery, and
service it if defective.
Terminal voltage of IC501-66,67
4.30
3.60
2.90
2.39
1.98
1.61
1.27
0.92
0.51
(V)
KEY-1
IC501-67
-----
-----
-----
REC
PLAY
STOP
/EJECT
FF
REW
POWER
KEY-2
IC501-66
-----
-----
-----
-----
-----
S-INH
TRACKING
TRACKING
SOURCE
FLOW CHART NO.2
No VCR operation is possible from the remote control unit. (
Is 5V voltage supplied to the Pin(3) terminal of
No
the RM2001 (remote control receiver)?
Ye s
Is the "L" pulse sent out from Pin(1) terminal of
No
the RM2001 (remote control receiver) when the
remote control unit is activated?
Ye s
No
Is the "L" pulse signal supplied to the Pin(5) of
IC501?
Ye s
Replace IC501.
Operation is possible from the unit.)
Check AL+5V(1) line and service it if defective.
Replace the RM2001 (remote control receiver)
or replace remote control unit.
Check the line between the RM2001 (remote
control receiver) and the Pin(5) of IC501, and
service it if defective.
1-12-7 E8E20TR
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