PHILIPS DVP620VR-78 Service information
DVD + VCR Combi
DVP620VR
/78
Service
Service
Service
Service Manual
Contents
Chapter
Technical Specifications
Sec. 1:
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
c Copyright 2004 Philips Consumer Electronics B.V. Eindhove, 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:
/78 NTSC
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
KLASS 1 LASER APPARAT
CLASSE 1 PRODUIT LASER
Published by FU 0422 Service AVE Printed in The Netherlands Subject to modification
Version 1.0
GB 3139 785 30690
MAIN SECTION
DIGITAL VIDEO DISC PLAYER &
VIDEO CASSETTE RECORDER
Sec. 1: Main Section
I Adjustment Procedures
I Schematic Diagrams and CBA’s
I Exploded Views
I Mechanical and Electrical Parts List
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
FIRMWARE RENEWAL MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
WAVEFORMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
WIRING DIAGRAM < VCR SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
WIRING DIAGRAM < DVD SECTION > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-2
SYSTEM CONTROL TIMING CHARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
IC PIN FUNCTION DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
LEAD IDENTIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
ELECTRICAL PARTS LIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18-1
EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19-1
MECHANICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20-1
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 30cm 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 Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
CAUTION
LASER RADIATION
WHEN OPEN. DO NOT
STARE INTO BEAM.
Location: Top of DVD mechanism.
1-1-1 H9622LASER
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. Be careful that foreign objects (screws, solder
droplets, 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 H9622SFTY
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’)
120 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
≥ 3.2mm (0.126 inches)
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.
1.5k
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
Exposed Accessible Part
Z
0.15 F
Earth Ground
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
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.
0.15µF CAP. & 1.5kΩ RES.
Connected in parallel
i≤0.5mA Peak Exposed accessible parts
1-2-2 H9622SFTY
STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indi-
cated as shown.
Top View
Out
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
Pin 1
c. The 1st pin of every male connector is indicated as
shown.
Input
In
Bottom View
5
10
Pb (Lead) Free Solder
When soldering, be sure to use the Pb free solder.
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)
Pin 1
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.
Fig. S-1-1
(2) Remove the flat pack-IC with tweezers while apply-
ing the hot air.
(3) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
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)
1-3-1 NOTE_1
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)
CBA
Masking
Tape
Tweezers
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-2
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
(3) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(4) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
With Iron Wire:
(1) Using desoldering braid, remove the solder from all
pins of the flat pack-IC. When you use solder flux
which is applied to all pins of the flat pack-IC, you
can remove it easily. (Fig. S-1-3)
(2) Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
(3) While heating the pins using a fine tip soldering
iron or hot air blower, pull up the wire as the solder
melts so as to lift the IC leads from the CBA contact
pads as shown in Fig. S-1-5
Fig. S-1-4
1-3-2 NOTE_1
(4) Bottom of the flat pack-IC is fixed with glue to the
CBA; when removing entire flat pack-IC, first apply
soldering iron to center of the flat pack-IC and heat
up. Then remove (glue will be melted). (Fig. S-1-6)
(5) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
Note:
When using a soldering iron, care must be taken
to ensure that the flat pack-IC is not being held by
glue. When the flat pack-IC is removed from the
CBA, handle it gently because it may be damaged
if force is applied.
2. Installation
(1) Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA so
you can install a replacement flat pack-IC more
easily.
(2) The “ I ” mark on the flat pack-IC indicates pin 1.
(See Fig. S-1-7.) Be sure this mark matches the 1
on the PCB when positioning for installation. Then
presolder the four corners of the flat pack-IC. (See
Fig. S-1-8.)
(3) Solder all pins of the flat pack-IC. Be sure that none
of the pins have solder bridges.
To Solid
Mounting Point
CBA
Hot Air Blower
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
or
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Presolder
Fig. S-1-7
Tweezers
Flat Pack-IC
Fig. S-1-6
Flat Pack-IC
CBA
Fig. S-1-8
1-3-3 NOTE_1
Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly grounded to remove any static electricity that may
be charged on the body.
2. Ground for Workbench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on clothing will not escape through the body grounding band,
be careful to avoid contacting semi-conductors with
your clothing.
<Incorrect>
<Correct>
1MΩ
CBA
Grounding Band
1MΩ
CBA
Conductive Sheet or
Copper Plate
1-3-4 NOTE_1
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.
Led Mode Indicator Active
When reel and 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
“EJECT A R” is displayed on a TV screen. (Refer to Fig. 1.)
“EJECT A T” is displayed on a TV screen. (Refer to Fig. 2.)
“EJECT A C” is displayed on a TV screen. (Refer to Fig. 3.)
“EJECT A D” is displayed on a TV screen. (Refer to Fig. 4.)
TV screen
When reel and capstan mechanism is not functioning
correctly
EJECT A R
Fig. 1
When tape loading mechanism is not functioning correctly
When cassette loading mechanism is not functioning
correctly
EJECT A C
Fig. 3
When the drum is not working properly
EJECT A T
Fig. 2
EJECT A D
Fig. 4
1-4-1 H9622FIS
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
TP502
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 H9622PFS
OPERATING CONTROLS AND FUNCTIONS
1-6-1 H9622IB
1-6-2 H9622IB
1-6-3 H9622IB
1-6-4 H9622IB
1-6-5 H9622IB
1-6-6 H9622IB
SIGNAL NAME ABBREVIATIONS
Signal Name Function
-FL FIP Drive Power Supply
3.58MHz 3.58MHz Clock
A-COM Audio Head Common
A-IN Audio Signal Input
A-MUTE-H
A-OUT Audio Signal Output
A-PB/REC
AE-H Audio Erase Head
AFC
AFCC
AFCLPF
AFG GND
AL+12V
AL+18V
AL+2.8V
AL+33V
AL+4.0V
AL+44V
AL+5V
AL-30V
AUDIO+5V +5V at Audio Signal
AVDD AVDD
AVss AVSS
C-CONT Capstan Motor Control Signal
C-F/R
C-FG
C-ROTA
C-SYNC Composite Synchronized Pulse
CONV-SW
Audio Mute Control Signal (Mute =
“H”)
Normal Audio Play Back/Record
Signal
Automatic Frequency Control
Signal
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 +33V 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
Capstan Motor FWD/REV Control
Signal (FWD=”L”/REV=”H”)
Capstan Motor Rotation Detection
Pulse
Color Phase Rotary Changeover
Signal
RF Conv. Output Channel
Switching Signal 3ch=”Hi-z”,
4ch=”L”
Signal Name Function
CTL
CTL (+)
CTL (-) Playback/Record Control Signal (-)
CTLA CTL Amp. AC GND
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 VFD Driver IC Control Clock
DISPLAY-DATA VFD Driver IC Control Data
DISPLAY-ENA VFD Driver IC Chip Select Signal
DVD A DVD Audio Signal
DVD-A-MUTE DVD Audio Mute Control Signal
DVD-H-IND DVD Mode LED Signal Output
DVD-L-IND VCR Mode LED Signal Output
DVD-OPEN/
CLOSE
DVD-P-
ON+12V
DVD-P-
ON+3.3V
DVD-P-ON+5V +5V at DVD Power-On Signal
DVD-PLAY DVD Play at High
DVD-POW-
MONITOR
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 Ground for Full Erase Head
FP-CLK Clock Input
FP-DIN Serial Data Input
FP-DOUT Serial Data Output
FP-STB Serial Interface Strobe
H-A-COMP Head Amp Comparator Signal
H-A-SW Video Head Amp Switching Pulse
Hi-Fi-A Hi-Fi Audio Head
Hi-Fi-COM Hi-Fi Audio Head Common
Amp. Output Control Signal for
Tes t Poi nt
Playback/Record Control Signal
(+)
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 H9622SNA
Signal Name Function
Hi-Fi-H-SW HiFi Audio Head Switching Pulse
HiFi/NOR-IN
I/P-SW
IIC-BUS- SCL IIC BUS Control Clock
IIC-BUS- SDA IIC BUS Control Data
INSEL-2
KEY-1 A/D Key Data Signal 1
KEY-2 Key Scan Input Signal 2
LD-SW
LINE- MUTE Audio Mute Control Signal
LM-FWD/REV Loading Motor Control Signal
MOD-A Modulator Audio Output Signal
MOD-V Modulator Video Output Signal
N-A-IN Normal Audio Signal Input
N-A-OUT Normal Audio Signal Output
NORMAL-L
OSCI Main Clock Input 14.31818MHz
OSCO Main Clock Output 14.31818MHz
OUTPUT-
SELECT
P-DOWN-L
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
PWRCON Power Down
REC-SAF-SW
REMOTE Remote Control Signal
REMOTE-
VIDEO
RESET System Reset Signal (Reset=”L”)
RF-SW Video Head Switching Pulse
SIF Source Input Format
SPDIF
ST-S Tape Start Position Detector Signal
ST/SAP-IN
ST/SAPMODE
Audio Mode Input HiFi=”L”/
Normal=”H”
Interlace/Progressive Detector
Signal
Input Select
“H”=DISC Ch
“L”=Ch except DISC
Deck Mode Position Detector
Signal
Normal Audio Control Signal
(Normal = “L”)
Output Select
Power Voltage Down Detector
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 Stereo/Sap Detector Signal
Input
Tuner Stereo/Sap Mode Signal
Signal Name Function
SXI
T-REEL Take Up Reel Rotation Signal
TIMER+5V +5V at Timer
TU-VIDEO Tuner Video Input Signal
V(L) Video L Head
V(R) Video R Head
V-COM Video Head Common
V-ENV Video Envelope Comparator Signal
V-IN Video Signal Input
V-IN-F Video Signal Input (Front)
V-OUT Video Signal Output
VCR/TV
VDD VDD
VDD2 VDD2
VIDEO Video Signal
VIDEO-C
VIDEO-IN Composite Video Signal Input
VIDEO-OUT Composite Video Signal Output
VIDEO-Pb/Cb
VIDEO-Pr/Cr
VIDEO-Y(I/P)
VRI Servo Standard Voltage Input
VRO Servo Standard Voltage Output
VSS VSS
Vss2 Vss2
XI Sub Clock Input 32.768 MHz
XO Sub Clock Output 32.768 MHz
YCA-CS YCA IC Control Chip Select
YCA-SCL YCA IC Control Clock
YCA-SDA YCA IC Control Data
Operation Mode Selecting Input
Signal
RF Conv. ON/OFF Signal (TV="L"/
VCR="H")
Video Component Video Signal
(chrominance)
Video Component Video Signal
(Pb/Cb)
Video Component Video Signal
(Pr/Cr)
Video Component Video Signal
(Interlace/Progressive)
1-7-2 H9622SNA
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 Mecha 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
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1] Top Case D1 4(S-1) -
[2]
PAR T
Front
Assembly
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
D2 *3(L-1), *3(L-2)
Note
1
1-1
1-2
REMOVAL
ID/
LOC.
No.
[8]
[9]
[10]
[11]
[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,
(5): Refer to “Reference Notes.”
PAR T
VCR
Chassis
Unit
Deck
Assembly
DVD
Open/
Close
CBA
Pow er S W
CBA
↓
(2)
unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
D5 5(S-7), 2(S-8) -
Desolder,
D6
(S-9), (S-10), (S-11)
D6 Desolder -
D6 Desolder -
↓
(3)
↓
(4)
Note
4,5
↓
(5)
[3]
[4]
[5]
[6]
[7]
Top
Bracket
DVD
Mecha
Assembly
Partition
Plate
Loader
Holder
DVD Main
CBA Unit
D2 3(S-2) -
4(S-3), *CN401,
D3
*CN601
D3 2(S-4) -
D3 2(S-5) -
2(S-6), *CN201,
D4
*CN301
2-1
2-2
-
2
3
1-8-1 H9622DC
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 a
Screw (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.
[1] Top Case
(L-1)
(S-1)
Fig. D1
(S-2)
[3] Top Blacket
(S-2)
(L-2)
(L-1)
[2] Front
Assembly
Fig. D2
1-8-2 H9622DC
[4] DVD Mecha
Assembly
(S-3)
CN401
CN601
(S-7)
(S-7)
(S-3)
(S-5)
[6] Loader
Holder
[7] DVD Main
CBA Unit
(S-6)
(S-4)
[5] Partition Plate
Fig. D3
(S-6)
(S-3)
(S-7)
(S-8)
(S-8)
[8] VCR Chassis Unit
Fig. D5
CN301
A
DVD Mecha
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
CN201
Fig. D4
1-8-3 H9622DC
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-11)
[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 H9622DC
Fig. D6
HOW TO EJECT MANUALLY
1. Remove the Top Case.
2. Rotate the roulette in the direction of the arrow as
shown below.
3. Pull the tray slowly with a hand.
View for A
Rotate this roulette in
the direction of the arrow
DVD Mecha
A
1-8-5 H9622DC
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 proce-
dures, 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.
CH1
CH2
Figure 1
EXT. Syncronize Trigger Point
1.0H
6.5H±1H (412.7µs±63.5µs)
Switching Pulse
0.5H
V-Syn
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 (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
VR501
(Switching Point)
(MAIN CBA)
Measurement
Equipment
PLAY
(SP)
Spec.
Reference Notes:
Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output waveform is at the 6.5H±1H (412.7µs±63.5µs) delayed
position from the rising edge of the CH2 head switching pulse waveform.
-----
VFMS0001H6 Oscilloscope
Connections of Measurement Equipment
TP751
Main CBA
GND
TP302
(412.7µs±63.5µs)
Oscilloscope
6.5H±1H
CH1 CH2
Trig. (+)
1-9-1 H9622EA
FIRMWARE RENEWAL MODE
1. Turn the power on and remove the disc on the tray.
2. To put the DVD player into version up mode, press
[9], [8], [7], [6], and [SEARCH MODE] buttons on
the remote control unit in that order. The tray will
open automatically.
Fig. a appears on the screen and Fig. b appears on
the VFD.
"
" 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.
*******
F/W Version Up Mode Model No : *******
VERSION : D5****_****.ab5
Reading...(*2)
VERSION : *.**
5. After programming is finished, the tray opens automatically. Fig. e appears on the screen and the
checksum in (*3) of Fig. e appears on the VFD.
(Fig. f)
"
" differ depending on the models.
*******
F/W Version Up Mode
VERSION : D5****_****.ab5
Completed
SUM : 7ABC (*3)
Model No : *******
VERSION : *.**
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programming Mode (Example)
At this time, no buttons are 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 [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 (*2) of Fig. c is
described as follows:
AppearanceNo. State
Reading... Sending files into the memory
1
Erasing... Erasing previous version data
2
Programming...
3 Writing new version data
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
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 [STANDBY-ON] button.
1-10-1 H9622TEST
BLOCK DIAGRAMS <VCR SECTION>
Servo / System Control Block Diagram
POWER
D561
POWER
SW518
2
KEY-1
2
KEY SWITCH
67
POWER SW CBA
S-INH
TP502
KEY SWITCH
66
AL+5V
D566 VCR
Q566
D567 DVD
Q567
CLOCK
TU701(TUNER UNIT)
11
CN508
POWER-LED
1 1
CN509
P-ON+9V
DATA
12
VCR/TV5
77
TO Hi-Fi AUDIO
Hi-Fi-H-SW
IIC-BUS SCL
IIC-BUS SDA
12
13IIC-BUS SCL
25
BLOCK
DIAGRAM
A-MUTE-H
NORMAL-L
ST/SAP-MODE
61
59
TO AUDIO
D-REC-H
A-MUTE-H
OUTPUT-SELECT
7
24
BLOCK DIAGRAM
INSEL 2
YCA-CS
YCA-SCL
YCA-SDA
45
YCA-CS
C-SYNC
YCA-SCL
YCA-SDA
OUTPUT-SELECT
41
46
14
15
16
TO VIDEO
BLOCK DIAGRAM
V-ENV
RF-SW
H-A-SW
C-ROTA
D-V SYNC
79
18
78
64
19
H-A-COMP
80
KEY- 1
DISPLAY-CLK6
REMOTE-VIDEO
DVD-POWER
IC501
(SERVO/SYSTEM CONTROL)
5
26
DISPLAY-DATA
DISPLAY-CLK
REMOTE-VIDEO
DVD-POWER
TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
AL+5V
MAIN CBA
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
DISPLAY-DATA
CTL58
DISPLAY-ENA
8
9
CTL
TP513
DISPLAY-ENA
S-LED
D555
KEY- 2
CTL(+)
56
CL504
CN504
5 CTL(+)
CTL(-)57
SW512
6 CTL(-)
AL+5V
LD-SW
TP507
TP506 TP505
LD-SW68
END-S
T-REEL
ST-S
Q504
ST-S
69
ST-S
DVD-L IND 70
END-S
62
DVD-H IND 71
T-REEL
3
Q506
SENSOR CBA
T-REEL
Q503
Q501
END-S
VCR/TV
RESET
20
RESET
AL+5V
TIMER+5V
VR501
SENSOR CBA
ST/SAP-IN
Hi-Fi-H-SW
Hi-Fi/NOR-IN
IIC-BUS SDA
REC-
SAF-SW
PG-DELAY
2
65
AL+5V
SW-POINT
CN502
CAPSTAN MOTOR
D-REC-H
A-MUTE-H
REC SW
SW511
P-ON+5V
AL+12V(1)
1 AL+12V(1)
2 P-ON+5V
M
CAPSTAN
MOTOR
INSEL 2
LM-FWD/REV
C-CONT
C-FG
49
3 C-FG
D-CONT29
C-F/R
28
21
27
C-F/R5C-CONT6GND7LM-FWD/REV
D-CONT9D-PFG10GND11AL+12V
4
8
YCA-CS
C-SYNC
YCA-SCL
YCA-SDA
OUTPUT SELECT
D-PFG
47
AL+18V
AL+18V
12
V-ENV
C-ROTA
D-V SYNC
RF-SW
H-A-SW
H-A-COMP
P-ON-L
P-DOWN-L
1
22
P-ON-L
P-DOWN-L
TO POWER
SUPPLY
BLOCK DIAGRAM
" " = SMD
AC HEAD ASSEMBLY
(DECK ASSEMBLY)
CONTROL
HEAD
1-11-1
M
PG
SENSOR
CYLINDER ASSEMBLY
DRUM
MOTOR
M
LOADING
MOTOR
H9622BLS
Video Block Diagram
P
R
" " = SMD
MAIN CBA
REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL MODE: SP/REC
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
TEST POINT INFORMATION
(OUTPUT SELECT)
IC751
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
1
VCR
DVD
15
(OSD)
IC501
2
OSD CHARACTER
MIX
38
11
9 10
SW CTL
40
OUTPUT-SELECT
LUMINANCE
SIGNAL PROCESS
CLAMP
Q301
BUFFER
DELAY
CCD 1H
YNR/COMB FILTER
36 37 39 34
VCA
26
6dB
AMP
QV/QH
TUNER
IC301
(VIDEO SIGNAL PROCESS/ HEAD AMP)
32
FBC
Y/C
MIX
AGC
VIDEO
REAR
28
15
RP
CHROMINANCE
SIGNAL PROCESS
I/F
SERIAL
FRONT
30
54
R
69
SYNC
P
SEPA
D-V SYNC
255324
70
SP
SP
HEAD
AMP
72
73
74
14
EP
EP
HEAD
AMP
656667
TP302
V-COM
V-COM
V(R)-1
V(L)-1
V(L)-2
CN253
123
V(R)-2
456
RF-SW
WF2
WF3
C-PB
TP301
C-ROTA/RF-SW
57
RF-SW
C-ROTA
TO
H-A-COMP
ENV-DET
59
58
60
V-ENV
H-A-SW
H-A-COMP
SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
Q391
WF1
TP751 V-OUT
BUFFER
JK751
V-OUT
REAR
TO SERVO/SYSTEM
CONTROL BLOCK DIAGRAM
6
18
VIDEO IN
VIDEO OUT
TU701
(TUNER UNIT)
JK752
V-IN
REAR
(INPUT SELECT)
IC752
2
1109
DVD-VIDEO
TO
DVD VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>TOSERVO/SYSTEM
LOGIC
11
INSEL 2
JK753
DIAGRAM
FRONT
CONTROL BLOCK
1-11-2
YCA-SCL
YCA-SDA55YCA-CS
TO SERVO/SYSTEM
V-IN
D-V SYNC
C-SYNC
CONTROL BLOCK
DIAGRAM
VIDEO (L)-1 HEAD
VIDEO (R)-1 HEAD
(DECK ASSEMBLY)
VIDEO (L)-2 HEAD
VIDEO (R)-2 HEAD
CYLINDER ASSEMBLY
H9622BLV
Audio Block Diagram
Mode : SP/REC
TO Hi-Fi AUDIO
BLOCK DIAGRAM
TO
DVD VIDEO/AUDIO
DVD-A(R)
DVD-A(L)
DVD-A(R)
DVD AUDIO SIGNAL
PB-AUDIO SIGNAL REC-AUDIO SIGNAL
MAIN CBA
BLOCK DIAGRAM
<DVD SECTION>
DVD-A(L)
SIF
MOD-A
A-IN (L)-F
A-IN (R)-F
A-OUT (R)
TO Hi-Fi AUDIO
BLOCK DIAGRAM
A-IN (L)
A-IN (R)
N-A-IN
N-A-OUT
A-OUT (L)
7680
AUDIO SIGNAL
PROCESS
IC301
TUNER
LINE 1
LINE 2
78
ALC
LINE
R
10
MUTE
AMP
LPF
3 2
EQ
6
P
4
AMP
SP/LP-ON
5
Q422
BIAS
OSC
REC
AUTO
9
8
11
AMP
BIAS
Q421
SERIAL
I/F
P-ON+5V
Q426
(PB=ON)
TO
YCA-SCL
YCA-SDA
58 55 53 54
P-ON+5V
SWITCHING
D-REC-OFF
Q425
SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
YCA-CS
D-REC-H
A-MUTE-H
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
15
SIF OUT
TU701
" " = SMD
(TUNER UNIT)
5
3
DVD
VCR
IC751
(OUTPUT SELECT)
4
TP753
A-OUT (R)
2
JK751
A-OUT (R)
AUDIO IN
12
DVD
13
VCR
14
A-OUT (L)
SW CTL
TP754
A-OUT (L)
JK756
A-OUT (R)
TO SERVO/SYSTEM
CONTOL BLOCK
REAR
DIAGRAM
OUTPUT-SELECT
A-OUT (L)
JK752
A-IN (R)
A-IN (L)
JK754
A-IN (L)
FRONT
JK755
A-IN (R)
CN504
4 A-PB/REC
3 A-COM
1 AE-H
2 AE-H/FE-H
AC HEAD ASSEMBLY
AUDIO
HEAD
AUDIO
(DECK ASSEMBLY)
ERASE
HEAD
CN501
1 FE-H
FE HEAD
FULL
ERASE
2 FE-H-GND
HEAD
9 10 11
1-11-3
H9622BLA
Hi-Fi Audio Block Diagram
TO SERVO/ SYSTEM
CONTROL BLOCK
DIAGRAM
IIC-BUS SCL
IIC-BUS SDA
P-ON+9V
TO AUDIO
DIAGRAM
N-A-IN
BLOCK DIAGRAM
MOD-A
A-OUT (L)
TO SERVO/SYSTEM
CONTROL BLOCK
NORMAL-L
ST/SAP-MODE
A-OUT (R)
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
(DECK ASSEMBLY)
A-MUTE-H
Hi-Fi-H-SW
Hi-Fi
CYLINDER
ASSEMBLY
CN253
AUDIO
A(R) 7
Hi-Fi-
(R) HEAD
A(L) 9
-COM 8
Hi-Fi
Hi-Fi-
Hi-Fi
AUDIO
(L) HEAD
DVD AUDIO SIGNAL
REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC
MAIN CBA
37
SERIAL
DATA
SAP
38
DECODER
MATRIX
dBX
DEC
ST/SAP
SW
L-R
DEMOD
DEMOD
DC
PILOT
CANCEL
54
RIPPLE
FILTER
MODE
R-CH BPF
COMP
SW
NOISE
P
40
R
OUT
ENV
DO
23
LPF
VCO
LIM DEV
DET
DET
4802
OUTPUT
78
MUTE
ALC
SELECT
77139
HOLD
49
PULSE
26
COMP
MATRIX
NOISE
DET
LPF
VCO
LIM DEV
R
R
24
34 33
LIM
L-CH BPF
COMP
SW
27
L
NOISE
P
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
" " = SMD
62 63
STEREO
FILTER
SAP
FILTER
CONT
SAP
DET
SIF
DEMOD
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
57
SIF
PILOT
DET
STEREO
PLL
1-11-4
R-CH
PNR
TO AUDIO
48 47
R-CH
INSEL
73
697471
A-IN(R)
A-IN(R)-F
BLOCK DIAGRAM
NOR
SW
6
N-A-OUT
13 14
7
A-IN(L)
A-IN(L)-F
L-CH
9
INSEL
11
12
DVD-A(L)
DVD-A(R)
L-CH
PNR
H9622BLH
Loading...