Philips DVP-3050-V Service Manual
DVD + VCR Combi
DVP3050V
/75
Service
Service
Service
Service Manual
Contents
Chapter
Adjustment Procedures
Sec. 1:
Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
c Copyright 2005 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.
Survey of versions:
/75 PAL
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
KLASS 1 LASER APPARAT
CLASSE 1 PRODUIT LASER
Published by FU-KC 0524 Service AV Systems Printed in The Netherlands Subject to modification
Version 1.0
GB 3139 785 31020
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
BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
WIRING DIAGRAM < VCR SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
WIRING DIAGRAM < DVD SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-2
SYSTEM CONTROL TIMING CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
ELECTRICAL PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21-1
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to 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
CAUTION- CLASS
-
TION WHEN OPEN. DO NOT VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS
1M
LASER RADIA
-
Location: Top of DVD mechanism.
1-1-1 E6PLSP
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 produc-
ing parts (heatsinks, 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. Use care that foreign objects (screws, solder drop-
lets, etc.) do not remain inside the set.
K. Crimp type wire connector
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: Do not re-use a connector. (Discard it.)
2)Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3)Align the lengths of the wires to be connected.
Insert the wires fully into the connector.
4)Use a crimping tool to crimp the metal sleeve at its
center. Be sure to crimp fully to the complete closure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.
1-2-1 DVDP_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
AC Line Voltage Clearance Distance (d), (d’)
220 to 240 V
≥ 3 mm(d)
≥ 6 mm(d’)
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
Fig. 1
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
AC Line Voltage Load Z Leakage Current (i)
220 to 240 V
2kΩ RES.
Connected in
parallel
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
i≤0.7mA AC Peak
i≤2mA DC
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
One side of power cord plug
AC Voltmeter
(High Impedance)
prongs (B) to:
RF or
Antenna terminals
A/V Input, Output
Fig. 2
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-2-2 DVDP_ISP
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: 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 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
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 H9923FIS
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 TP501 (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.
Q503
TP501 S-INH
Q504
Fig. 1
1-5-1 H9924PFS
OPERATING CONTROLS AND FUNCTIONS
1-6-1 H9923IB
1-6-2 H9923IB
SIGNAL NAME ABBREVIATIONS
Signal Name Function
-FL FIP Drive Power Supply
A-COM Audio Head Common
AUDIO-IN Audio Signal Input
AUDIO(L)-IN Audio(L) Signal Input
AUDIO(L)-IN-F Audio(L) Signal Input (Front)
AUDIO(R)-IN Audio(R) Signal Input
AUDIO(R)-IN-F Audio(R) Signal Input (Front)
AUDIO-IN-F Audio Signal Input (Front)
A-MODE Hi-Fi Tape Detection Signal
AUDIO(L)MUTE
AUDIO(R)MUTE
AUDIO-MUTE-H Audio Mute Control Signal (Mute =
AUDIO(L)-OUT Audio(L) Signal Output
AUDIO(R)OUT
AUDIO-PB/
REC
AE-H Audio Erase Head
AFC
AL+12V
AL+2.8V
AL+4.0V
AL+44V
AL+5V
AL-30V
AMPC CTL AMP Connected Terminal
AMPVcc AMPVcc
AMPVREF in V-Ref for CTL AMP
AMPVREF
OUT
AMPVss AMPVss
ASPECT DVD Aspect Signal
AUDIO+5V +5V at Audio Signal
AVc c
C-CONT Capstan Motor Control Signal
C-F/R
Audio Mute(L) Output
Audio Mute(R) Output
“H”)
Audio(R) Signal Output
Normal Audio Play Back/Record
Signal
Automatic Frequency Control
Signal
Always +12V with AC Plug
Connected
Always +2.8V with AC Plug
Connected
Always +4.0V with AC Plug
Connected
Always +44V with AC Plug
Connected
Always +5V with AC Plug
Connected
Always -30V with AC Plug
Connected
V-Ref for CTL AMP
A/D Converter Power Input/
Standard Voltage Input
Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)
Signal Name Function
C-FG
C-ROTA
C-SYNC Composite Synchronized Pulse
CLKSEL Clock Select (GND)
CTL(+)
CTL(-) Playback/Record Control Signal (-)
CTLAMP out To Monitor for CTL AMP Output
D-CONT Drum Motor Control Signal
D-PFG
D-REC-H Delayed Record Signal
D-V-SYNC Dummy V-sync Output
DISPLAY-CLK VFD Driver IC Control Clock
DISPLAY-DATA VFD Driver IC Control Data
DISPLAY-STB VFD Driver IC Chip Select Signal
DRV-CLK VFD Driver IC Control Clock
DRV-DATA VFD Driver IC Control Data
DRV-STB VFD Driver IC Chip Select Signal
DVD-AUDIO(L) DVD Audio(L) Signal
DVDAUDIO(R)
DVD-A(R)MUTE
DVD-A-MUTE DVD Audio Mute Control Signal
DVDAUDIO(L)-OUT
DVDAUDIO(R)OUT
DVD-LED “DVD” LED Signal Output
DVD-OPE N/
CLOSE
DVD-PON+12V
DVD-PON+3.3V
DVD-P-ON+5V +5V at DVD Power-On Signal
DVD-PLAY DVD Play at High
DVD-POWER DVD Power Control Signal
DVD-POWERMONITOR
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
Capstan Motor Rotation Detection
Pulse
Color Phase Rotary Changeover
SIgnal
Playback/Record Control Signal
(+)
Drum Motor Phase/Frequency
Generator
DVD Audio(R) Signal
DVD Audio(R) Mute Control Signal
DVD Audio(L) Signal Output
DVD Audio(R) Signal Output
DVD Open/Close at High
+12V at DVD Power-On Signal
+3.3V at DVD Power-On Signal
DVD Power Monitor Signal (Poff="L", P-on="H")
1-7-1 H9923SNA
Signal Name Function
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
FP-CLK Clock Input
FP-DIN Serial Data Input
FP-DOUT Serial Data Output
FP-STB Serial Interface Strobe
FSC-IN
[4.43MHz]
H-A-COMP Head Amp Comparator Signal
H-A-SW Video Head Amp Switching Pulse
Hi-Fi-AUDIO(L) Hi-Fi Audio(L) Head
Hi-FiAUDIO(R)
Hi-Fi-COM Hi-Fi Audio Head Common
Hi-Fi-H-SW HiFi Audio Head Switching Pulse
HLF LPF Connected Terminal (Slicer)
I/P-SW
IIC-BUS-SCL IIC BUS Control Clock
IIC-BUS-SDA IIC BUS Control Data
INPUTSELECT
KEY-1 Key Scan Input Signal 1
KEY-2 Key Scan Input Signal 2
LD-SW
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 Oscillator Input
OSCin Clock Input for letter size
OSCout Clock Output for letter size
OSD-V-IN OSD Video Signal Input
OSD-V-OUT OSD Video Signal Output
OSDVcc OSDVcc
OUTPUTSELECT
P-DOWN-H
P-ON+15V +15V at Power-On Signal
P-ON+3.3V +3.3V at Power-On Signal
P-ON+44V +44V at Power-On Signal
P-ON+5V +5V at Power-On Signal
P-ON+9V +5V at Power-On Signal
4.43MHz Clock Input
Hi-Fi Audio(R) Head
Interlace/Progressive Switching
Signal
Input Selector Control Signal
Deck Mode Position Detector
Signal
Output Select
Power Voltage Down Detector
Signal
Signal Name Function
P-ON-H Power On Signal at High
P61/LP P61/LP
P80/C P80/C Terminal
PG-DELAY
POW-SAF P-ON Power Detection Input Signal
POWER-LED “POWER” LED Signal Output
PWRCON-IN Power Down
REC-LED “REC” LED Signal Output
REC-SAF-SW
REMOCON Remote Control Sensor
REMOTE-DVD DVD Remote Control Sensor
REMOTEVIDEO
RESET System Reset Signal (Reset=”L”)
RF-SW Video Head Switching Pulse
SIF Source Input Format
SPDIF
ST-S Tape Start Position Detector Signal
T-REEL Take Up Reel Rotation Signal
TIMER+5V +5V at Timer
TIMER-LED “TIMER” LED Signal Output
TU-AUDIO Tuner Audio Input Signal
TU-AUDIO(L) Tuner Audio(L) Input Signal
TU-AUDIO(R) Tuner Audio(R) Input Signal
TU-VIDEO Tuner Video Input Signal
TUNER(TUN)SW1
TUNER(TUN)SW2
VIDEO(L) Video L Head
VIDEO(R) Video R Head
VIDEO-COM Video Head Common
V-ENV Video Envelope Comparator Signal
VIDEO-IN Video Signal Input
VIDEO-IN(L) Video(L-ch) Signal Input
VIDEO-IN(R) Video(R-ch) Signal Input
V-OUT Video Signal Output
Vcc Vcc
VCR-LED “VCR” LED Signal Output
VDD Power Supply
VEE Pull Down Level
VIDEO-C
VIDEO-Cb/Pb Component Video (Cb/Pb) Signal
VIDEO-Cr/Pr Component Video (Cr/Pr) Signal
Video Head Switching Pulse
Signal Adjusted Voltage
Recording Safety SW Detect (With
Record tab=”L”/ With out Record
tab=”H”)
Remote Control Sensor
Digital Audio Interface Format
Signal
Tuner System Control Signal
Output
Tuner System Control Signal
Output
Component Video (Chrominance)
Signal
1-7-2 H9923SNA
Signal Name Function
VIDEO-Y(I)
VIDEO-Y(I/P)
VSS GND
XCin Sub Clock
XCOUT Sub Clock
Xin Main Clock Input
Xout Main Clock Input
Component Video (Luminance)
Signal (Interlace)
Component Video (Luminance)
Signal (Interlace/Progressive)
1-7-3 H9923SNA
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
REMOVAL
ID/
LOC.
No.
[7]
[8]
[9]
[10]
[11]
[12] Main CBA D6 ---------- -
[13] Jack Cover D6 (S-12) -
[14] Earth Plate D6 ---------- -
[15] Jack Board D6 (S-13) -
PART
DVD Main
CBA Unit
VCR
Chassis Unit
Deck
Assembly
DVD Open/
Close CBA
Power SW
CBA
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
2(S-6), *CN201,
D4
*CN301
D5 5(S-7), 3(S-8), 2(S-9) -
Desolder,
D6
(S-10), (S-11)
D6 Desolder -
D6 Desolder -
Note
2
2-1
2-2
3
4,5
[13] Jack Cover
[14] Earth Plate
[15] Jack Board
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1] Top Case D1 7(S-1) -
[2]
[3] Top Bracket D2 3(S-2) -
[4]
[5]
PART
Front
Assembly
DVD
Mechanism
Assembly
Par tition
Plate
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
D2 *3(L-1), *3(L-2)
4(S-3), *CN401,
D3
*CN601
D3 2(S-4) -
Note
1
1-1
1-2
-
↓
(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.”
↓
(2)
↓
(3)
↓
(4)
↓
(5)
[6]
Loader
Holder
D3 2(S-5) -
1-8-1 H9923DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Release three Locking Tabs (L-1).
1-2. Release three Locking Tabs (L-2), then remove
the Front Assembly.
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. Disconnect Connector (CN301). Remove two
Screws (S-6) and lift the DVD Main CBA Unit.
(Fig. D4)
2-2. Short the three short lands of FPC cable with sol-
der 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)
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.
(S-1)
(L-1)
(S-1)
[1] Top Case
(S-1)
(S-1)
Fig. D1
(S-2)
[3] Top Bracket
(S-2)
(L-2)
(L-1)
[2] Front
Assembly
Fig. D2
1-8-2 H9923DC
[4] DVD
Mechanism
Assembly
(S-3)
CN401
CN601
(S-3)
(S-3)
(S-7)
(S-8)
(S-7)
(S-8)
(S-5)
[6] Loader
Holder
[7] DVD Main
CBA Unit
(S-4)
(S-6)
[5] Partition
Plate
Fig. D3
(S-6)
(S-9)
(S-9)
[8] VCR
Chassis Unit
Fig. D5
CN301
A
DVD Mechanism
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
CN201
Fig. D4
1-8-3 H9923DC
FE Head
[11] Power
SW CBA
Cylinder
Assembly
ACE Head
Assembly
[14] Earth
Plate
[9] Deck Assembly
[13] Jack Cover
[15] Jack Board
(S-12)
(S-13)
Pin
SW507
LD-SW
[12] Main CBA
[9] Deck Assembly
(S-10)
Desolder
Lead with
blue stripe
[10] DVD Open
/Close CBA
(S-11)
From
Capstan
Motor
Assembly
[12] Main CBA
Desolder
Lead with
blue stripe
Printing side
Desolder
From
ACE Head
Assembly
Lead with
blue stripe
Shaft
LD-SW
Lead with
blue stripe
Desolder
Hole
From
Cylinder
Assembly
Desolder
From
FE Head
Cam Gear
Hole
Pin
[12] Main CBA
Lead with
red stripe
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
1-8-4 H9923DC
Fig. D6
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.
View for A
Rotate this roulette in
the direction of the arrow
DVD Mechanism
A
1-8-5 H9923DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
c
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 "CHANNEL L5??" or
"CHANNEL 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: 0.001~50V/Div.,
F-Range: DC~AC-20MHz
2.Alignment Tape (9965 000 14514)
Head Switching Position Adjustment
Figure 1
EXT. Syncronize Trigger Point
CH1
CH2
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 (416µs±64µs) delayed position
from the rising edge of the CH2 head switching pulse
waveform.
1.0H
6.5H±1H (416µs±64µs)
Switching Pulse
0.5H
V-Syn
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)
TP504(RF-SW)
GND
Tape
9965 000 14514 Oscilloscope
Connections of Measurement Equipment
Main CBA
VR501
(Switching Point)
(MAIN CBA)
Measurement
Equipment
TP751
GND
TP504
PLAY
(SP)
Spec.
6.5H±1H
(416µs±64µs)
Oscilloscope
-----
CH1 CH2
Trig. (+)
1-9-1 H9924EA
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/
STATUS] buttons on the remote control unit in that
order.
Fig. a appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. a
2. Press [CLEAR/C-RESET] button on the remote
control unit.
Fig. b appears on the screen.
"
" differ depending on the models.
*******
MODEL : *******
Version
Region
: *.**
: *
EXIT: POWEREEPROM CLEAR : CLEAR
EEPROM CLEAR : OK
Fig. b
When “OK” appears on the screen, the factory
default will be set.
3. To exit this mode, press [STANDBY-ON] button.
1-10-1 H9923INT
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 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.
"
" 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.
"
" differ depending on the models.
*******
(*1)
F/W Version Up Mode Model No : *******
VERSION : ************.ab6
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).
"
" differ depending on the models.
*******
(*2)
F/W Version Up Mode
VERSION : ************.ab6
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 [STANDBY-ON]
button and the tray will close.
9. Press [DVD], [1], [2], [3], [4], and [DISPLAY/
STATUS] 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 H9923FW
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