Philips DVP620VR User manual

DVD + VCR Combi ~ _DVP620VR:00/05/02
Service
Service
Service
2 mp3 wee ge
VIDEO DIGITAL AUDIO DIGITAL VIDEO)
Contents Survey of versions:
Chapter /00 PAL I
/05 PAL B/G
Sec. 1: Technical Specifications 102 PAL B/G,L,L’ & SECAM B/G,L,L'
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
CLASS 1 LASER PRODUCT
KLASSE 1 LASER PRODUKT
©Copyright 2004 Philips Consumer Electronics B.V. Eindhove, The Netherlands KLASS 1 LASER APPARAT
All rights reserved. No part of this publication may be reproduced, stored in a retrieval CLASSE 1 PRODUIT LASER
system or transmitted, in any form or by any means, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
Published by FU 0420 Service AVE Subject to modification 3139 785 30560
PHILIPS
Version 1.0

MAIN SECTION
DIGITAL
VIDEO
DISC
PLAYER
&
VIDEO
CASSETTE
RECORDER
Sec. 1: Main Section
@ Adjustment Procedures
@ Schematic Diagrams and CBA’s
@ Exploded Views
@ Mechanical and Electrical Parts List
TABLE OF CONTENTS
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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
ie
Laser
Pickup
|
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ee
ais
Turntable
fi
1-1-1 H9720LASER

IMPORTANT SAFETY PRECAUTIONS
Product Safety Notice
Some electrical and mechanical parts have special
safety-related characteristics which are often not evi-
dent 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 iden-
tified by a A\ on schematics and in parts lists. Use of a
substitute replacement that does not have the same
safety characteristics as the recommended replace-
ment part might create shock, fire, and/or other haz-
ards. The Product’s Safety is under review
continuously and new instructions are issued when-
ever 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 impor-
tant to implement the following precautions when a set
is being serviced.
Precautions during Servicing
A. Parts identified by the A\ symboi are critical for
safety. Replace only with part number specified.
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 block-
ing 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)|nsulators for transistors
. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before solder-
ing.
. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fus-
ible resistors, etc.).
. Check that replaced wires do not contact sharp
edges or pointed parts.
. When a power cord has been replaced, check that
5 - 6 kg of force in any direction will not loosen it.
Also check areas surrounding repaired locations.
1-2-1
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 clo-
sure of the tool.
L. When connecting or disconnecting the internal
connectors, first, disconnect the AC plug from the
AC outlet.
SFTY_06

Safety Check after Servicing
Examine the area surrounding the repaired location for .
damage or deterioration. Observe that screws, parts, | Chassis or Secondary Conductor
and wires have been returned to their original posi-
tions. Afterwards, do the following tests and confirm : Primary Circuit Terminals
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 sol-
dered terminals, and between terminals and surround-
ing metallic parts. (See Fig. 1)
Table 1 H Ratings for selected area BERS ESS SO eA ESS eS ECSU CHESS ERLE DSSS IES SCRUBS RASS SETI REESE
AC Line Voltage | Clearance Distance (d), (d’)
23 mm(d)
220 to 240 V = 6 miata
Note: This table is unofficial and for reference only. Oo Exposed Accessible Part
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) AC Voltmeter
and externally exposed accessible parts (RF termi- (High Impedance)
nals, 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) : B & One side of
insert load Z between B (earth ground, power cord Power Cord Plug Prongs
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
; : One side of power cord plug
AC Line Voltage Leakage Current (i) prongs (B) to:
Pcireiae a i<0.7mA AC Peak RF or
parallel is2mA DC Antenna terminals
220 to 240 V
50kQ
RES.
:
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gene
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A/V
Input,
Output
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-2-2 SFTY_06

STANDARD NOTES FOR SERVICING
Circuit Board Indications
a. The output pin of the 3 pin Regulator ICs is indi-
cated as shown.
Top View Botiom View
Input
b. For other ICs, pin 1 and every fifth pin are indicated
as shown.
5
Pin 1 ORONO LKES
OROKOMCE OLSKS
10
c. The 1st pin of every male connector is indicated as
shown.
Pint ROMO MORRO
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.
* Be careful to avoid a short circuit.
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)
(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)
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.
Hot-air
Flat Pack-iC
Desoldering
Machine
Masking
Tape
Tweezers
1-3-2
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)
Desoldering Braid
Flat Pack-IC
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)
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
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.
Hot Air Blower
Mounting Point
/4—.Fine Tip
Soldering lron
Flat Pack-IC
Fig. S-1-6
1-3-3
2. Installation
(1) Using desoldering braid, remove the solder from
the foil of each pin of the flat pack-IC on the CBA so
you can install a replacement flat pack-IC more
easily.
(2) The “ @ ” 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 ail 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.
Presolder
Flat Pack-IC
NOTE_1

Instructions for Handling
Semi-conductors
Electrostatic breakdown of the semi-conductors may
occur due to a potential difference caused by electro-
static charge during unpacking or repair work.
1. Ground for Human Body
Be sure to wear.a grounding band (1MQ) that is prop-
erly 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 (1MQ) on the workbench or
other surface, where the semi-conductors are to be
placed. Because the static electricity charge on cloth-
ing will not escape through the body grounding band,
be careful to avoid contacting semi-conductors with
your clothing.
<Incorrect>
<Correct> Grounding Band
| 1MQ
CBA
ir or
Copper Plate
1-3-4
NOTE_1

FUNCTION INDICATOR SYMBOLS
Note:
lf 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.
INDICATOR ACTIVE
“EJECT R’” is displayed on a TV screen. (Refer to Fig. 1.)
When reel or capstan mechanism is not
functioning correctly
When tape loading mechanism is not func- | “EJECT T” is displayed on a TV screen. (Refer to Fig. 2.)
tioning correctly
When cassette loading mechanism is not | “EJECT C” is displayed on a TV screen. (Refer to Fig. 3.)
functioning correctly
When the drum is not working properly “EJECT D” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON Power safety detection “EJECT P” is displayed on a TV screen. (Refer to Fig. 5.)
TV screen
When reel or capstan mechanism is not functioning When the drum is not working properly
correctly
EJECT R EJECT D
Fig. 1 Fig. 4
ihe tape loading mechanism is not functioning cor- _P-ON Power safety detection
EJECT T | EJECT P
Fig. 2 Fig. 5
When cassette loading mechanism is not functioning
correctly
EJECT C
Fig. 3
1-4-1 H9720FIS

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.
4 Co)
[be
— TP501|S-INH
1-5-4
H9720PFS

OPERATING CONTROLS AND FUNCTIONS
DVP620VR/00, 02, 05
Front Panel
==
iii i
19 1817161514 13
1. OSTANDBY-ON button (DVD,VCR)
to switch the DVD/VCRto ONor OFF
2. POWER-ON light (DVD,VCR)
light appears when DVD/VCRturns on.
3. Cassette Compartment (VCR)
insert a tape here
4. 4 OPEN/CLOSE button (DVD)
to open/close the disc tray
Disc Tray (DVD)
insert a disc here
6. DIRECT DUBBING button (DVD, VCR)
to play DVDdisc and record its content to video cassette
tape at the same time
7. » PLAY button (DVD)
to start, pause or resume disc playback
8. E_STOP button (DVD)
to stop playback
DVD light (DVD)
light appears when DVD/VCRin DVD mode
10. SOURCE button (DVD, VCR)
to select between DVDand VCRmode
11. VCR light (VCR)
light appears when DVD/VCRin VCRmode
12. CHANNEL button (VCR)
to select a programme number on the TV
13. IR (Infrared) Remote Sensor (DVD, VCR)
receive signals from remote control
9
DVD
Displays a type of the disc
which is inserted on the tray.
¢ DVD: DVD
° CD: Audio CD, MP3, JPEG
eVCD: Video CD ©
Lights up when the
A-B repeat function is on
Lights up when the
repeat function is on.
&
a ee
“ALL nae HLF Oe Le Oe
De 000
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ahs sa
3
: = Displays the elapsed time
= of the title or track.
? The number of a new title,
chapter, or track is
« displayed when a chapter
| or track is switched.
i Lights up when
i the inserted
t disc comes to
: a pause.
Lights up when the inserted
Lights up when i disc is being played back.
eee es ee 2 es
the ALL repeat . .
function is on. »=» Lights up when playing back
in slow mode. (DVD)
14. @ RECORD button (VCR)
press once to start recording, repeated! y to start an One-
Touch Recording
15. Bb PLAY button (VCR)
to play a tape
4 STOPI/EJECT button (VCR)
when playback is stopped, press to eject the tape
17. >> FFWD
when tape playback is stopped, press to fast forward the tape
at high speed. During playback, press to fast forward the tape
while the picture stays on the screen.
18. << REW
when tape playback is stopped, press to rewind the tape at
high speed. During playback, press to rewind the tape while
the picture stays on the screen.
19. AUDIO and VIDEO in jacks
connect toAUDIOand VIDEOOUTof an audio source
16
Display Message
Appears after the disc tray closes if the tray is empty, i
there is an error reading the disc, or if an unacceptable}
disc is installed
ve R Lights up
when a tape
is in the
DVD/VCR.
Lights up when
the timer
recording or an
OTR recording
has been set.
Lights up during
a recording.
Flashes when
@ recording
is paused.
Raeanaxcca d
epee
Leu uy
rc
Lt Wl:
a Works as a tape
counter (hour,minute,second).
Also displays a channel number,
Lights up when
the playback is j
in still or slow mode. ;
Lights up when the tape speed, remaining
inserted cassette is _ time for OTR or current time.
being played back.
1-6-1 H97201B

Rear Panel
1 23456 7 8
1. MAINS (AC Power Cord)
connect to a standard AC outlet
2. OPTICAL (Digital audio out) jack (DVD only)
connect to digital (optical) audio equipment
3.
4.
6.
9 7.
8.
COAXIAL (Digital audio out) jack (DVD only)
connect to AUDIO inputs of a digital (coaxial) audio equipment
AUDIO OUT (Left/Right) jacks (DVD only)
connect to AUDIO inputs of an amplifier, receiver or stereo system
S-Video Out jack (DVD only)
connect to a TV with S-Video inputs
AV2 (DECODER) jack (VCR only)
connect SCART cable from another DVD/VCR, camcoder or
an audio/video source
AV1 (TV) jack
connect SCART cable to a TV
AERIAL jack
connect to an antenna or cable
RF OUT jack
use supplied RF coaxial cable to connect to the ANTENNA.
IN on your TV, cable box or Direct Broadcast System
Remote Control
PHILIPS
. OSTANDBY-ON
switch DVD/VCR ON or OFF
2. 0-9 numerical key pads/+10
select numbered items in a menu
use +10 button to enter number 10 and above (DVD)
to select TV channels inVCR mode
3. SYSTEM
to change the video (color) system (DVP620VR/02 only)
VCR
press to put the DVD/VCR in VCR mode and before using
the remote contro! for VCR features
DISC/VCR MENU
to display the menu of the DVD disc or to access VCR menu
OK
5.
-acknowledge menu selection (DVD)
<PAVYV
(left/right/up/down) select an item in the menu
<<
7.
to view DVD picture in fast reverse motion (DVD)
to rewind the tape (VCR)
STOP (HI)
to stop a DVD disc playback (DVD)
to stop playback, recording(VCR)
PLAY (> )
to start a DVD disc playback (DVD)
to start a tape playback(VCR)
9.
10.
11.
12.
13.
14.
15.
16,
17.
18.
19.
20.
21.
22.
23.
24,
25.
26.
27.
31,
32.
33.
1-6-2
SVIV+
to programme timer recording with the SHOWVIEW /
VIDEO Plus+ system (VCR)
TITLE
to display title menu of a disc (DVD)
ANGLE
select DVD camera angle (DVD)
MODE
to set up programmed or random playback (DVD)
REPEAT
repeat chapter, track, title, group, disc (DVD)
TIMER SET
to put the DVD/VCR into standby mode for a timer recording
INDEX SEARCH ( >I )
to fast forward or rewind the tape at index number (VCR)
SUBTITLE
subtitle language DVD selector (DVD)
SEARCH MODE
to access or remove search display (DVD)
REPEAT (A-B)
repeat a specific segment (DVD)
ZOOM
enlarge DVD video image (DVD)
RETURN
to return previous or remove setup menu (DVD)
AUDIO
to choose audio languages or sound modes (DVD)
to choose sound modes (VCR)
SLOW
to view tape playback in slow motion (VCR)
RECORD (@ )
to record the TV channel selected at this moment or press
repeatedly to start a One-Touch Recording (VCR)
PAUSE (11)
pause playback temporarily / frame-by-frame playback (DVD)
pause playback and during recording temporarily (VCR)
p>
to view DVD picture in fast forward motion (DVD)
to fast forward the tape (VCR)
. SYSTEM MENU
to access or remove the DVD setup menu (DVD)
DVD
press to put the DVD/VCR in DVD mode and before using
the remote control for DVD features
. DISPLAY STATUS/EXIT
to access or remove the display screen during DVD or Audio
CD playback(DVD)
to access or remove VCR's on-screen status display (VCR)
to remove VCR’s menu (VCR)
CLEAR
to reset the setting (DVD)
to reset the counter (VCR)
to delete last entry/Clear programmed recording (TIMER) (VCR)
SKIP/P (14/—/ Pi/ +)
to skip chapter/tracks (DVD)
to change TV channels (VCR)
OPEN/CLOSE EJECT
to insert discs into or remove them from the tray (DVD)
to remove the tape from the VCR (VCR)
H97201B

SIGNAL NAME ABBREVIATIONS
SignalName [Function
| Capstan Motor Control Signal
Capstan Motor FWD/REV Control
Signal
(FWD=”
”/REV="H")
F
Capstan Motor Rotation Detection
Pulse
:
Q ce) = |
? a
Bs)
5
Ay G)
Control SCART 1 8Pin Level by
using 8POUT-1 and 8POUT-2
AMPVREF
V-Ref
for
CTL
AMP
DVD-B-OU
(inte
Coen
Video
Signal
ASPECT
DVD
Aspect
Signal
DVD-G-OUT
DVD
Component
Video
Signal
AUDIO+5V (green)
“DVD” LED Signal Output
+5V at Audio Signal
A/D Converter Power Input/
Standard Voltage Input
DVD-LED
8POUT-1
C-POWER-SW | Capstan Power Switching Pulse
A-COM
|
Audio
Head
Common
C-ROTA
Color
Phase
Rotary
Changeover
AIN || Audio Signal input Slgnal
A-MODE | Hi-Fi Tape Detection Signal C-SYNC Composite Synchronized Pulse
A-MUTE
|
Audio
Mute
Output
CLKSEL
Clock
Select
(GND)
A-MUTE-H Audio Mute Control Signal (Mute = SECAM or MESECAM Chroma
“H”) COLOR-IN Video Input Signal at Super
A-OUT | Audio Signal Output Impose
T Playback/Record Control Signal
A-PB/REC at Audio Play Back/Record on g
AEH | Audio Erase Head CTL- | Playback/Record Control Signal (-)
are
Automatic
Frequency
Control
CTLAMPout
|
To
Monitor
for
CTL
AMP
Output
Signal D-CONT | Drum Motor Control Signal
Automatic Frequency Control ; Drum Motor Phase/Frequency
a
AGC IF AGC Control Signal! D-REC-H | Delayed Record Signal
AGC IF AGC Control Signal D-V- SYNC | Dummy V-sync Output
Always +12V with AC Plug DAVN-L | VPS/PDC Data Receive = “L’
AL+12V
Connected DISPLAY-CLK | VFD Driver IC Control Clock
ror
as
HEV
with
AC
Plug
DISPLAY-DATA
|
VFD
Driver
IC
Control
Data
—
—
“
a
DISPLAY-STB_|
VFD
Driver
IC
Chip
Select
Signal
+20, ways +20.5V/+12V wi ug
May
Always
+4.0V
with
AC
Plug
DRV-DATA
VFD
one
IC
eonte!
Data
re
Connected
DRV-STB
|
VFD
Driver
IC
Chip
Select
Signal
Always +44V with AC Plug DUBBING-SW Dubbing Start at high
AL+44V C ———
onnected
DVD
A
__
|
DVD
Audio
Signal
Always
+5V
with
AC
Plug
DVD
LED
|
“DVD”
LED
Signal
Output
AL+5V C cted
Ue DVD-8PIN-IN | SCART 8Pin DVD Input Control
ALa9V
Always
+9V
with
AC
Plug
Rckichet
Signal
Connected , DVD-A(L)-
ane Always -30V with AC Plug MUTE | DVD Audio(L) Mute Control Signal
Connected DVD-A(R)-
; Always -5V with AC Plug MUTE | DVD Audio(R) Mute Control Signal
Connered ! DVD-A-MUTE [DVD Audio Mute Control Signal
CTL AMP Connected Terminal |. [5VD-A-OUTID [DVD Audio(L) Signal Output
AMPVcc
DVD-A-
AMPVREF in _|| V-Ref for CTL AMP OUT(R) | EVD mua) Signal Outpt
AVcc
O >| >] >
rot =i =| i
- vu a
<|O} < oO
1-7-1 H9720SNA

Signal Name [Function ____—S—*d
DVD-OPEN/
close DVD Open/Close at High
CLOSE
DVD-P- :
fonciev | +12V at DVD Power-On Signal
DVD-P- :
ON+3.3V | +3.3V at DVD Power-On Signal
DVD-P-ON+5V | +5V at DVD Power-On Signal
DVD-PLAY | DVD Play at High
DVD-POWER_ | DVD Power Control Signal
DVD-POWER- || DVD Power Monitor Signal (P-
MONITOR off="L", P-on="H")
DVD-R-OUT DVD Component Video Signal
(red)
DVD-Stop | DVD Stop at High
DVD-VIDEO DVD Video Conirol 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
Za Filament Power Supply 1
F200—C Filament Power Supply 2
EH [Fulerase Head
[FIPsSaV__—[FIPIC Power Supaly
[FP-CLK | Cieeknpat
[FP-DIN [Seva Data het
[FP-DOUT [Serial Data Ouppat
[FP-STS_—__[Sevallnierace Stebe
[FRONFAY [Front AV Output Siena
spate
|
4.43MHz
Clock
Input
Comparator Input of Video Signal
EA-COMP [Head Amp Comparator Signal
FAA-SW | Video Head Amp Switching Pulse _
[AGFA [WFTAudioHead
Hi-Fi-COM | Hi-Fi Audio Head Common
Hi-Fi-H-SW | HiFi Audio Head Switching Pulse
HLF
LPF Connected Terminal (Slicer)
IIC-BUS- SCL | IC BUS Control Clock
IIC-BUS- SDA | IC BUS Control Data
INPUT :
SELECT Input Selector Control Signal
JK1-16P | Scart Jack1 16Pin Control Signal
JK1-8P-OUT | SCART 8Pin Output Control Signal
JK2-16P | Scart Jack2 16Pin Control Signal
KEY-1 Key Scan Input Signal 1
KEY-2 | Key Scan Input Signal 2
LD-SW Deck Mode Position Detector —
Signal
1-7-2
LM-FWD/REV Loading Motor Control Signal
LP LP
ed
iodulator Rio Out Sera |
MOD | Modulator Video Outpt Signal
NAPE [Normal ucio Playback
NEAREC [Normal Ausio Recording
|
|
|
MOD-A
O50 |
i
[OSD Video Signal input
[OSD Video Signal Ourpat |
OSCout
OSD-V-IN
OSD-V-OUT
biduailt
D QO = w
OSDVcc | OSDVcc
OUTPUT-
SELECT Output Select
P-DOWN-L Power Voltage Down Detector
Signal
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-H | Power On Signal at High
P80/C | P80/C Terminal
PB-H-OUT Playback Signal Output at High
Video Head Switching Pulse
PG-Delay | Signal Adjusted Voltage
POW-SAF P-ON Power Detection Input Signal
POWER- LED | “POWER?” LED Signal Output
PWRCON Power Down
Recording Safety SW Detect (With
REC-SAF-SW | Record tab=”L’/ With out Record
tab=”"H”)
REMOTE-DVD | DVD Remote Control Sensor
REMOTE-
VIDEO Remote Control Sensor
RESET System Reset Signal (Reset="L’)
RF-SW Video Head Switching Pulse
RGB- SCART 2 RGB Through Control
THROUGH Signal
S-REEL | Supply Reel Rotation Signal
SC2-IN | Input Signal from Pin 8 of SCART2
SECAM-C-IN | SECAM Chroma Signal Input
SECAM-FM- :
our | SECAM FM Signal Output
SECAM-H | SECAM Mode at High
Source Input Format
| Digital Audio Interface Format
Tape Start Position Detector Signal
H9720SNA

Signal Name
i ea oa
T-REEL | Take Up Reel Rotation Signal
|
TIMER+5V
TRICK-H
ee
Pee ||
OWED a!
Take Ee Reel Rotation Signal
Special Playback = “H’ in SECAM
Tuner Audio Input Signal
[une Video Input Signal
<| <| <| <| <| <|</< = 8 S| o
o| oO ® |
) | | =
Z| 5) 3 :
) Plo
Video Head Common
Video Envelope Comparator Signa
Video Signal Input
Video Signal Input (Front
Video Signal Output
VCR LED
o
(R)
-COM
“OUT
“VCR” LED Signal Output
[woo [Fewer Suppl
VEE Pull Down Level
VIDEO Video Signal
IDEO-B
IDEO-
IDEO-
VIDEO-
Video Component Video Signal
—_
oS
Cc (oO)
—
Video Component Video Signal
(chrominance)
Video Component Video Signal
(green)
a Component Video Signal
= o m (2) re)
V
ves [eGR
|
[xin [Sub Clock
RCOUT [Sub Clock
|
|
| o>
0) 2
G
vil Fae Component Video Signal
(luminance(l))
Xin Main Clock Input
Main Clock input
1-7-3
H9720SNA

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
[5] Partition Plate
[6] Power Supply CBA
[7] Loader Holder
[9] VCR Chassis Unit
[10] Deck Assembly
[11] DVD Open/Close CBA
[12] Power SW CBA
[13] Main CBA
[14] Jack-A CBA
2. Disassembly Method
REMOVAL
ID/
LOC. PART REMOVE/*UNHOOK/
No. UNLOCK/RELEASE/
UNPLUG/DESOLDER
at [Topco [OT
Front
Assembly
[2]
[3]
DVD
[4] | Mecha
Assembly
Partition
4(S-3), *CN401,
*CN601
1-8-1
REMOVAL
ID/
Loc. | PART REMOVE/*UNHOOK/
No.
UNLOCK/RELEASE/
UNPLUG/DESOLDER
ee ee een ey He
2
DVD Main] ,,, | 2(S-7), *CN201, 2-4
CBA Unit *CN301 2-2
VCR
Chassis
Unit
Deck Desolder,
Assembly 2(S-11), (S-12)
fom |
Power SW
BRO 0 [oes | =
ia [man oaal oe [——
ot* [lomo |
L L L
CBA
(1) (2) (3) (4) (5)
[10]
[11]
[12]
y L
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
@.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
(5): Refer to “Reference Notes.”
H9720DC

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-7) 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 LD-
SW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D6.
1-8-2
{2] Front
Assembly
Fig. D2
H9720DC

LASS
KRel
2
'
9
bes
;
[4]
DVD
Mecha—___
4
)
>
5M
ois
;
Assembly
NS
\
IF)
B
BAN
i
[7] Loader
Holder
[8] DVD Main
CBA Unit
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
1-8-3 H9720DC

Cylinder
) Uk
KK eli SJ». Assembly
[10]
Deck
CPN
NN
os
Assembly bee 5 Te,
Lead with blue stripe Ss } 7 Lead with blue stripe
Lr
t
[14]
Jack-A
CBA
[12] Powe ¢ oe yi [10] Deck Assembly
SW CBA : 7 mint om ~~
[13] Main CBA
(S-1
[13] Main CBA
Cam Gear
Desolder
[11] DVD from bottom
Open/Close CBA
2 Desolder Pin
LD-SW
xy
_—
Lead
with
———
mM
3]
Main
CBA
blue stripe
From From
O
ACE
Head
Cylinder
Assembly
Assembly
Lead with
blue
stripe
Desolder-7
Lead
with
L
<
0)
blue
stripe
\HHHHH
(is
From
FE
Head
Lead
with
red
stripe
Desolder
\ Printing side
From ©
Capstan Desolder
Motor
Assembly
| | a
Lead connections of Deck Assembly and Main CBA
1-8-4 H9720DC