AEG VCR-D 4501 Service manual
SERVICE MANUAL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
Sec. 3: Exploded views
and Parts List Section
I Exploded views
I Parts List
DVD PLAYER &
VIDEO CASSETTE RECORDER
VCR-D 4501
PAL
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
VCR-D 4501
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
TABLE OF CONTENTS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1-1
Laser Beam Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2-1
Important Safety Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3-1
Standard Notes for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4-1
Preparation for Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5-1
Cabinet Disassembly Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6-1
Electrical Adjustment Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7-1
FIRMWARE Renewal Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8-1
Block Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-1
Schematic Diagrams / CBA’s and Test Points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10-1
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11-1
Wiring Diagram < VCR Section > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
Wiring Diagram < DVD Section >. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-3
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Manufactured under license from Dolby Laboratories. "Dolby" and
the double-D symbol are trademarks of Dolby Laboratories.
SPECIFICATIONS
< VCR Section >
Description Unit Minimum Nominal Maximum Remark
1. Video
1-1. Video Output (PB) Vp-p 0.8 1.0 1.2 SP Mode
1-2. Video Output (R/P) Vp-p 0.8 1.0 1.2
1-3. Video S/N Y (R/P) dB 40 45
1-4. Video Color S/N AM (R/P) dB 37 41 SP Mode
1-5. Video Color S/N PM (R/P) dB 30 36 SP Mode
1-6. Resolution (PB) Line 230 245 SP Mode
2. Servo
2-1. Jitter Low µsec 0.07 0.12 SP Mode
2-2. Wow & Flutter % 0.3 0.5 SP Mode
3. Normal Audio
3-1. Output (PB) dBV -9 -4 -3 SP Mode
3-2. Output (R/P) dBV -9 -4 -1.5 SP Mode
3-3. S/N (R/P) dB 36 41 SP Mode
3-4. Distortion (R/P) % 1.0 4.0 SP Mode
3-5. Freq. resp (R/P) at 200Hz dB -6 -2 SP Mode
(-20dB ref. 1kHz) at 8kHz dB -8 -2 SP Mode
SP Mode,
W/O Burst
4. Tuner
4-1. Video output Vp-p 0.8 1.0 1.2 E-E Mode
4-2. Video S/N dB 39 44 E-E Mode
4-3. Audio output dB -10 -6 -2 E-E Mode
4-4. Audio S/N dB 40 46 E-E Mode
5. Hi-Fi Audio
5-1. Output dBV -12 -9 -4 SP Mode
5-2. Dynamic Range dB 70 85 SP Mode
5-3. Freq. resp (6dB B.W) Hz 20 ~ 20K SP Mode
Note: Nominal specs represent the design specs. All units should be able to approximate these – some will exceed
and some may drop slightly below these specs. Limit specs represent the absolute worst condition that still might
be considered acceptable; In no case should a unit fail to meet limit specs.
1-1-1 H9504SP
< DVD Section >
ITEM CONDITIONS UNIT NOMINAL LIMIT
1. Video Output 75 ohm load Vpp 1.0 ± 0.1
2. Optical Digital Out dBm -18
3. Audio (PCM)
3-1. Output Level 1kHz 0dB Vrms 2.0
3-2. S/N dB 100
3-3. Freq. Response
DVD fs=48kHz 20~20kHz dB ± 0.5
CD fs=44.1kHz 20~20 kHz dB ± 0.5
3-4. THD+N
DVD 1 kHz 0dB % 0.02
CD 1 kHz 0dB % 0.03
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : AC230 V 60 Hz
3. Load imp. : 100 K ohm
4. Room ambient : 5
°C ~ 40 °C
1-1-2 H9504SP
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
1-2-1 DVD_LASER
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.
1-3-1 DVD_SFNP
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’)
Chassis or Secondary Conductor
Primary Circuit Terminals
dd'
230 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
≥ 3 mm(d)
≥ 6 mm(d’)
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)
2kΩ RES.
Connected in
parallel
230 V
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
prongs (B) to:
Antenna terminals
A/V Input, Output
AC Voltmeter
(High Impedance)
RF or
Fig. 1
Fig. 2
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
1-3-2 DVD_SFNP
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)
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
(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)
* Be careful to avoid a short circuit.
1-4-1 DVD_NOTE
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
CBA
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)
Flat Pack-IC
Desoldering Braid
Masking
Tape
Tweezers
Flat Pack-IC
Fig. S-1-2
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
(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
1-4-2 DVD_NOTE
(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
Example :
or
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
Flat Pack-IC
CBA
Fig. S-1-8
Flat Pack-IC
Tweezers
Fig. S-1-6
1-4-3 DVD_NOTE
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
(1) 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
1-4-4 DVD_NOTE
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 (SENSOR INHIBITION) 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
Q504
TP501
S-INH
Fig. 1
1-5-1 H9500PFS
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 Cover
[2] Front
Assembly
[17] Side
Bracket
[5] DVD Main
CBA
[13] DVD OPEN/
CLOSE CBA
[12] Main CBA
[14] Function
CBA
[3] Top Bracket
[4] DVD Mecha
Assembly
[6] Rear Unit
[10] VCR
Chassis Unit
[15] Jack CBA
[9] Rear Panel
[8] PCB Bracke
[7] Power
Supply CBA
[11] Deck
Assembly
[16] Deck
Pedestal
t
ID/
LOC.
No.
[8]
[9]
[10]
[11]
PAR T
PCB
Bracket
Rear Panel
VCR
Chassis
Unit
Deck
Assembly
REMOVE/*UNHOOK/
Fig.
UNLOCK/RELEASE/
No.
UNPLUG/DESOLDER
D6 3(S-9) -
D6 ---------- -
5(S-10), 2(S-11),
D7
2(S-11A)
Desolder, (S-12),
D8
(S-12A)
[12] Main CBA D8 ---------- -
DVD
REMOVAL
OPEN/
[13]
CLOSE
D8 Desolder -
CBA
Function
[14]
CBA
D8 Desolder -
[15] Jack CBA D8 Desolder -
Deck
[16]
[17]
Pedestal
Side
Bracket
D9 7(S-13) -
D9 (S-14) -
Note
-
4,5
2. Disassembly Method
ID/
LOC.
No.
PART
Fig.
No.
[1] Top Cover D1 7(S-1) -
Front
[2]
[3]
Assembly
To p
Bracket
D2 (S-2), *7(L-1)
D2 2(S-3), 2(S-3A) -
DVD
[4]
Mecha
D3
Assembly
DVD Main
[5]
CBA
D4
[6] Rear Unit D5
Power
[7]
Supply
D6 2(S-8), 2(S-8A) -
CBA
REMOVAL
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
3(S-4), *CN302,
*CN401, *CN601
2(S-5), *CN201,
*CN301
4(S-6), 4(S-7),
*CN003
Note
1
1-1
1-2
-
2
2-1
2-2
2-3
3
-
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
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.”
1-6-1 H9531DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) are fragile. Be careful
not to break them.
1-1. Remove Screw (S-2).
1-2. Release seven Locking Tabs (L-1) (to do this, first
release five Locking Tabs (A) at the side and top,
and then release two Locking Tabs (B) at the bottom.)
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. Slide the pickup unit as shown in 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)
2-3. Disconnect Connector (CN301). Remove two
Screws (S-5) and lift the DVD Main CBA. (Fig.
D4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN301) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D4)
CAUTION 4: When reassembling, solder wire jumpers
as shown in Fig. D8.
CAUTION 5: Before installing the Deck Assembly, be
sure to place the pin of LD-SW on Main CBA as shown
in Fig. D8. 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. D8.
(L-1)
(A)
(L-1)
(S-2)
(B)
[2] Front Assembly
CN601
CN302
(S-4)
CN401
(S-3)
(S-3A)
[3] Top Bracket
(S-3A)
(A)
(L-1)
(A)
Fig. D2
(S-4)
(S-4)
[4] DVD Mecha Assembly
[1] Top Cover
(S-1)
(S-1)
Fig. D1
Fig. D3
(S-1)
1-6-2 H9531DC
(S-5)
CN301
CN201
(S-5)
[5] DVD Main
CBA
DVD Mecha
(S-8)
(S-8)
(S-8A)
[8] PCB Bracket
[7] Power Supply CBA
(S-8A)
(S-9)
[9] Rear Panel
Fig. D6
A
Slide
[6] Rear Unit
B
Pickup Unit
View for A
Short the three short
lands by soldering
View for B
Fig. D4
(S-7)
(S-6)
(S-7)
CN003
(S-10)
(S-11A)
[10] VCR Chassis Unit
(S-11A)
(S-11)
(S-10)
(S-11)
(S-10)
Fig. D7
(S-7)
Fig. D5
1-6-3 H9531DC
[11] Deck
Assembly
FE Head
Cylinder Assembly
ACE Head
Assembly
Pin
SW507
LD-SW
Desolder
Lead with
blue stripe
[13] DVD OPEN/
CLOSE CBA
[12] Main CBA
(S-12)
[14] Function CBA
From
ACE Head
Assembly
[15] Jack CBA
(S-12A)
Lead with
blue stripe
[11] Deck Assembly
Shaft
Hole
LD-SW
Lead with blue stripe
Desolder from bottom
Desolder
Lead with
blue stripe
From
Cylinder
Assembly
[12] Main CBA
Cam Gear
Hole
Pin
[12] Main CBA
From
FE Head
From
Capstan
Motor
Assembly
Desolder
Lead connections of Deck Assembly and Main CBA
Lead with
white stripe
Printing side
Desolder
BOTTOM VIEW
Fig. D8
1-6-4 H9531DC
[16] Deck Pedestal
(S-13)
(S-14)
[17] Side
Bracket
(S-13)
To Remove the Disc Manually
Fig. D9
1. Remove the Top Cover.
2. Rotate this roulette in the direction of the arrow as
shown below.
Top Cover
1
DVD Mecha
Tray
Deck Assembly
3
2
Rotate this roulette in
the direction of the arrow
2
1-6-5 H9531DC
ELECTRICAL ADJUSTMENT INSTRUCTIONS
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.
CH1
CH2
Figure 1
EXT. Syncronize Trigger Point
1.0H
6.5H±1H (416.0µs±60µs)
Switching Pulse
0.5H
V-Sync
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 (FL6A)
Head Switching Position Adjustment
Purpose:
To determine the Head Switching point 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
FL6A Oscilloscope
VR501
(Switching Point)
(MAIN CBA)
Measurement
Equipment
PLAY
(SP)
6.5H±1H
(416.0µs±60µs)
-----
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(416.0µs) delayed position from the
rising edge of the CH2 head switching pulse waveform.
Connections of Measurement Equipment
TP751
Main CBA
GND
TP504
Oscilloscope
CH1 CH2
Trig. (+)
1-7-1 H9500EA
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.
F/W Version Up Mode
Please insert a DISC
for F/W Version Up.
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.
F/W Version Up Mode
VERSION : ********
Reading...(*2)
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)
F/W Version Up Mode
VERSION : ********
Completed
SUM : 7abc (*3)
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programming Mode (Example)
At this time, no buttons are available.
6. Unplug the AC cord from the AC outlet. Then plug it
again.
7. Turn the power on by pressing the power button
and the tray will close.
8. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.
model: ****** Ver: **** Region: **
1: VFD TEST
2: TT REPEAT PLAY
3: EEPROM CLEAR
4: MEASUREMENT SERVO
5: DISC READ CHECK
6: MECHA CHECK
7: DISC INFO
8: ERROR RATE
EXIT: POWERRETURN: -----
EXIT: POWER
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
Fig. g
9. Press [3] button on the remote control unit.
Fig. h appears on the screen.
model: ****** Ver: **** Region: **
TEST 3: EEPROM CLEAR
EEPROM CLEAR: OK
EXIT: POWERRETURN: -----
Fig. h
10.To finish this mode, press [POWER] button.
1-8-1 H9500TEST
1-9-1 1-9-2 H9504BLS
Servo/System Control Block Diagram
MLOADING
MOTOR
CYLINDER ASSEMBLY CAPSTAN MOTOR
DRUM
MOTOR
PG
SENSOR
CONTROL
HEAD
CL287
5 5CTL(+)
6 6CTL(-)
CL504
AC HEAD ASSEMBLY
MAIN CBA
KEY- 1
POWER-LED
DVD-LED
REC-LED
VCR-LED
TIMER-LED
ST-S
T-REEL
REMOTE-VIDEO
CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V-SYNC
D-REC-H
INPUT-SELECT
RF-SW
H-A-SW
C-ROTA
END-S
14
94
95
10
4
80
34
2
13
15
18
33
41
16
31
7
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL79
SW-POINT
AL+5V
VR501
TIMER+5V
S-REEL
PS502
TP502
KEY- 2
8
IIC-BUS SDA
IIC-BUS SDA
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
OUTPUT-SELECT
A-MUTE-H
Hi-Fi-H-SW
A-MODE
H-A-COMP
17
V-ENV
6
P-ON-H
C-POW
-SW
P-ON-H
C-POW-SW
P-DOWN-L
67
66
86 P-DOWN-L
P-OFF-H
73 P-OFF-H
OUTPUT-SELECT
SW506
TO
VIDEO BLOCK
TO
Hi-Fi AUDIO
BLOCK
TO
AUDIO BLOCK
2 2KEY-1
4 4
POWER-LED
KEY SWITCH
CL505
D591
CL591
AL+5V
FUNCTION CBA
SDA
SCL
IC502 (MEMORY)
72
32
19
83
IIC-BUS SCL
D-V-SYNC
D-REC-H
INPUT
-SELECT
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
58
C-SYNC
C-SYNC
OUTPUT-SELECT
IIC-BUS SCL
71
LD-SW
REMOTE-VIDEO
9
AL+5V
AL+5V
SW507
LD-SW
AL+5V
D555
S-LED
TO
POWER
SUPPLY
BLOCK
TP501
Q507
Q502
Q508
D504
Q509
Q511
S-INH
M
CAPSTAN
MOTOR
IC501
(SERVO/SYSTEM CONTROL)
LINE-MUTE
LINE-MUTE
82
5
6
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL97
FF/REW-L84
Q510
TP503
CTL
74
23
25
29
30
26
POWER
REC
D503
VCR
D502
DVD
TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>
TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>
KEY
SWITCH
AL+5V
D501
TIMER
CL502
C-FG
C-CONT
D-PFG
C-F/R
90
76
87
78
LM-FWD/REV
81
D-CONT77
AL+20.5V/+12V
AL+12V(2)
P-ON+15V
P-ON+5V
1
AL+20.5V/+12V
2 P-ON+5V
3 C-FG
4
C-F/R
5
C-CONT
6
GND
7
LM-FWD/REV
8
D-CONT
9
D-PFG
10
GND
11
AL+12V(2)
12
P-ON+15V
M
DRV-DATA
DRV-STB
DRV-CLK
68
69
70
DVD-POWER
DRV-DATA
DRV-STB
DRV-CLK
DVD-POWER
21
BLOCK DIAGRAMS
IIC-BUS SDA
IIC-BUS SCL
CYLINDER ASSEMBLY
V(R)-1
V-COM
V(L)-1
CL251
1
2
3
Video Block Diagram
1-9-3 1-9-4 H9504BLV
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FM
AGC
TO SERVO/SYSTEM
CONTROL BLOCK
TO SERVO/SYSTEM
CONTROL BLOCK
RF-SW
D-REC-H
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
LUMINANCE
SIGNAL
PROCESS
CHROMINANCE
SIGNAL
PROCESS
V-ENV
H-A-COMP
H-A-SW
D-V-SYNC
RF-SW/C-ROTA
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
V(L)-2
V-COM
V(R)-2
4
5
6
TU701
IC301
(Y/C SIGNAL PROCESS)
IC501 (OSD)
REC-VIDEO SIGNAL
SERIAL
DECORDER
48
50
52
56
24
6
50
52
19
20
JK101
V-OUT1
V-IN1
61
63
96
95
94
93
90
89
88
87
CHARA.
INS.
CCD 1H DELAY
SP
BYPASS
MUTE
PB/EE
IN1
TUNER
IN1
TUNER
MUTE
PB/EE
FRT
IN2
FRT
IN2
AGC
PR
R
Y
C
P
R P R P
EP
Y. DELAY
Y/C
MIX
+
21
7978
AGC VXO
OSD
CHARACTER
MIX
FBC
1/2
58 59
65
2928
6968
46 43
84
83
71
62
70
D-REC-H
80
BUFFER
Q104
DVD
VCR
TP751
V-OUT
WF3
TP301
C-PB
WF2
TU-VIDEO
VIDEO
BUFFER
Q301
MAIN CBA
54
TP504
RF-SW
WF1
OUTPUT-SELECT
DVD-VIDEO
TO SERVO
/SYSTEM
CONTROL
BLOCK
TO SERVO/SYSTEM
CONTROL BLOCK
X301
4.43MHz
C-SYNC
C-SYNC 67
IC751 (SW)
4
5
3
11109
SW CTL
Q752
MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL
INPUT SELECT
V-OUT2
8
V-IN2810 10
JACK CBA
19
20
JK1402
V-OUT2
V-IN2
CL2017
CL2018
BUFFER
Q103
JK752
V-IN-F
3
IC1404 (SW)
5
4
TO DVD
VIDEO BLOCK
<DVD SECTION>
9
SW CTL
1-9-5 1-9-6 H9504BLA
Audio Block Diagram
REC
AMP
100
3
AUTO
BIAS
2
1
+5V
+5V
Q404
Q406
BIAS
OSC
Q403
N-A-PB
TO Hi-Fi
AUDIO BLOCK
N-A-REC
Q401
(PB=ON)
Q405
SWITCHING
D-REC-OFF
5
EQ
AMP
98
7
LINE
AMP
REC-ON
AUDIO HD-SW
CONTROL
MUTE
11
6
PB-ON
SP/LP-ON
P
TUNER IN2
IN1
R
ALC
DET
ALC
IC301
(AUDIO SIGNAL PROCESS) 1513 17
4 A-PB/REC
CL504
3 A-COM
1 AE-H
2 AE-H/FE-H
A-PB/REC 4
A-COM 3
AE-H 1
AE-H/FE-H 2
CL287
AUDIO
HEAD
AUDIO
ERASE
HEAD
ACE HEAD ASSEMBLY
FE HEAD
2 FE-H
1 FE-H-GND
CL501
MAIN CBA
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
71
A-MUTE-H
IIC-BUS SCL
IIC-BUS SDA TO SERVO/SYSTEM
CONTROL BLOCK
FULL
ERASE
HEAD
68 69
SERIAL
DECODER
(DECK ASSEMBLY)
12
16
INV
ATT
1-9-7 1-9-8 H9504BLH
Hi-Fi Audio Block Diagram
48
47
61 71
62 70
14
15
78
R-CH
INSEL
L-CH
INSEL
IF SINAL
PROCESS
NOR
SW
SERIAL
DATA
DECODER
OUTPUT
SELECT
VCO
LPF
L-CH
BPF
R-CH
PNR
L-CH
PNR
LIM DEV
COMP
SW
NOISE
VCO
LPF
LIM DEV
COMP
COMP
SW
NOISE
ENV
DET
DO
DET
MIX
R-CH
BPF
P
R
R
L
P
R
HOLD
PULSE
NOISE
DET
34 33
21
76
77
74
37
38
39
75
73
26
53
24
27
N-A-REC
LIM
80
N-A-PB
Hi-Fi-H-SW
LINE-MUTE
A-MODE
TO AUDIO BLOCK
IIC-BUS SDA
IIC-BUS SCL
TO
SERVO/ SYSTEM
CONTROL BLOCK
Hi-Fi
AUDIO
(R)
HEAD
Hi-Fi
AUDIO
(L)
HEAD
CYLINDER
ASSEMBLY
MAIN CBA
Hi-Fi-A(R) 7
Hi-Fi-COM 8
Hi-Fi-A(L) 9
CL251
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC
DVD AUDIO SIGNAL
AFV CBA
JK101
A-OUT1(R)
A-OUT1(L)
2
6
2
6
1
3
1
3
JK1402
A-IN2(R)
A-IN2(L)
A-IN1(R)
A-IN1(L)
A-OUT2(R)
A-OUT2(L)
TU-AUDIO(R)
4
TU-AUDIO(L)
5
4
5
CN701CN1CN701 CN1
TU701
SIF
AUDIO
22
2
ALC
SW
SW
ALC
67
65
Q451
MUTE-ON
MUTE-ON
REAR
JK751
A-OUT(R)
A-OUT(L)
JK754
A-IN(R)-F
JK753
A-IN(L)-F
IC751 (SW)
13
12
14
15
1
2
11109
SW CTL
BUFFER
BUFFER
Q107
Q108
Q752
VCR
DVD
VCR
DVD
OUTPUT-SELECT
DVD-A(R)
DVD-A(L)
TO DVD AUDIO
BLOCK
<DVD SECTION>
TO SERVO
/SYSTEM
CONTROL
BLOCK
50
60
58
2
52
56
6
10
4
12
54
8
JACK CBA
A-IN2(R)
4
A-IN2(L)
5
4
5
A-OUT2(R)
1
A-OUT2(L)
2
1
2
CL2017CL2018
(DECK ASSEMBLY)
SIF
2
2
1-9-9 1-9-10 H9504BLP
Power Supply Block Diagram
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
AC1001
F1001
T1.6AL/250V
LINE
FILTER
L1003
D1001 - D1004
BRIDGE
RECTIFIER
2
4
Q1001
Q1003
Q1008
7
8
1
23
4
IC1001
ERROR
VOLTAGE DET
T001
MAIN CBAPOWER SUPPLY CBA
Q1009
HOT CIRCUIT. BE CAREFUL.
20
19
18
17
16
15
14
13
12
11
1 EV+1.5V
2 EV+1.5V
3 EV+1.5V
4 EV+3.3V
5 EV+3.3V
13 P-ON+5V
14 EV+9V
15 EV+9V
17 P-ON+3.3V
19 PWRCON
C-POW-SW
P-ON+5V
P-ON-H
P-DOWN-L
P-ON+44V
AL-30V
AL+12V
AL+12V
TIMER+5V
AL+9V
AL+5V
AL+20.5V/+12V
Q053,Q054
SW+44V
Q1053,
Q1054
SW+12V
Q055
SW+9V
Q056
SW+5V
Q051,Q052
SW+20.5V
P-ON+15V
F2
F1
DVD P-ON+12V
Q057
CL001 CL001 CN050
1 AL+44V
1
3 AL+12V
3
5 AL+5V
5
6 AL+5V
6
8 AL+20.5V
8
CL002 CL002
1 AL-30V
3 AL+1.5V
5 AL+3.3V
9 F1
8
1
3
5
9
8F2
<TO PIN 67 OF IC501>
<TO PIN 86 OF IC501>
<TO PIN 66 OF IC501>
P-OFF-H
<TO PIN 73 OF IC501>
7 P-OFF-H
7
IC1051
+1.5V
REG.
IC1052
+3.3V
REG.
JUNCTION
CBA
CN003
1
3
5
6
8
1
3
5
6
8
10
12
14
18
17
16
10
12
14
18
17
16
-FL
DVD P-ON+3.3V
EV+5V
DVD P-ON+5V
Q1055
CN1051
SW+5V
Q1052
SW+3.3V
Q058
Q059
SW+5V
HOT
COLD
(VOLTAGE DETECTION)
1-9-11 1-9-12 H9504BLSD
DVD System Control/Servo Block Diagram
59
27
7
8
3
15
10
14
26
1
2
3
4
6
23
5
17
18
12
11
14
13
15
16
25
24
FP-STB
54FP-DIN
61
REMOTE-DVD
53
FP-CLK
CN401 CN1001
2
28
1
12
7
8
9
10
11
REMOTE
SENSOR
RM2001
1G
7G
~
23
17
~
a
b
c
d
e
FP-STB
REMOTE-VIDEO
DRV-CLK
DRV-DATA
DRV-STB
FP-DIN
FP-CLK
GRID FIP
SEGMENT
IC611
IC612
DVD MAIN CBA UNIT MAIN CBA
DRIVE CBA
(FIP DRIVER)
IC301
(SERVO DRIVE)
IC451
(CLOCK GENERATOR)
13
14
16
FP-STB 16
16
FP-DIN 18
18
FP-CLK 21
21
REMOTE-DVD 22
22
f
g
h
i
IC202
(OP AMP)
12 14
CN3002 CN301
FG CBA
FG
SENSOR
M
SLED
MOTOR
M
SPINDLE
MOTOR
IC101
(MICRO CONTROLLER)
+
-+
-
+
-
+
-
+
-
+
-
+
-
SLED
MOTOR
DRIVE
FOCUS
ACTUATOR
DRIVE
1/4
1/4
PLL2
X451
MULTI
PLL
X'TAL
OSC
36.864MHz
OSC
SPINDLE
MOTOR
DRIVE
TRACKING
ACTUATOR
DRIVE
EXT CLOCK
CLK33M
BE CLOCK
172
170
150
TRAY-OUT
TRAY-IN
FG-IN
97
SLD70
SPDL71
TRACKING
DRIVE
152
FOCUS DRIVE
60
66
TO
DVD VIDEO/ AUDIO
BLOCK DIAGRAM
51
ADAC-MD
50 ADAC-MC
96 ADAC-ML
ADAC-MC
ADAC-ML
PCM-SCLK
95
A-MUTE
ADAC-MD
A-MUTE
1792FSEL
RESET68
RESET
IC461
5 4
+3.3V
TRAY-OUT
TRAY-IN
FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL
SLED SERVO SIGNAL SPINDLE SERVO SIGNAL
3SP(+)
4SP(-)
5TRAY-OUT
6TRAY-IN
7GND
8SL(-)
9SL(+)
1FG-IN
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
<VCR SECTION>
DVD-POWER
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
<VCR SECTION>
CN302 CN2014
PLAY 1
1
STOP 2
2
POWER 3
3
OPEN/CLOSE
PLAY
STOP
POWER
OPEN/CLOSE
4
4
Q1505
SW2020
CL2015 CL2016
OPEN/CLOSE
2 GND
2
1
OPEN/CLOSE
1
DVD OPEN/CLOSE CBA
SW2021
STOP
SW2022
PLAY
48
47
61
94
FS(+) 18
FS(-) 19
TS(+) 20
TS(-) 17
CN201
FSTS
PICK-UP
UNIT
EV+3.3V
1-9-13 1-9-14 H9504BLD
Digital Signal Process Block Diagram
C 6
D 7
A 8
B 5
F 10
E 2
DVD-LD 14
CD-LD 12
PD-MONI 13
CN201
CN201
IC201
(SW)
IC105 (LATCH)
IC102 (SDRAM) IC101 (MICRO CONTROLLER)
CD/DVD
PICK-UP
UNIT
DETECTOR
CD/DVD 9
Q251,Q252
CD DVD
AMP
Q253,Q254
AMP
4
1 3
6
GND(DVD-PD)
15
GND(CD-PD)
16
GND(LD)
11
RF
SIGNAL
PROCESS
CIRCUIT
DVD/CD
FORMATTER
AUDIO
I/F
VIDEO
I/F
NTSC/PAL
ENCODER
DMA
BCU
INST.
ROM
32BIT
CPU
DATA
ROM
INTERRUPT
CONTROLLER
WATCH DOG
TIMER
CPU
I/F
TIMER
DECODER
I/F
CPU
I/F
READ
MEMORY
DATA
ROM
DSP
DECODER
PIXEL
OPERATION
I/O
PROCESSOR
INST.
ROM
DATA
ROM
INST.
ROM
DATA
ROM
INST.
ROM
SERIAL
D/A
GENERAL
I/O
INTERRUPT
CONTROLLER
TIMER
WATCH DOG
TIMER
32BIT CPU
STREAM
I/F
EXTERNAL
MEMORY
I/F
SDRAM
ECC
UMAC
124
125
122
123
128
129
126
127
131
130
135
133
132
134
78
DEBUG
BCU
INST
CACHE
D TYPE
LATCH
DATA
CACHE
D/A
D/A
D/A
TO DVD
VIDEO
/AUDIO
BLOCK
DIAGRAM
163
164
Y
C
R
G
VIDEO-Y
VIDEO-C
VIDEO-R
VIDEO-G
TO DVD
VIDEO
/AUDIO
BLOCK
DIAGRAM
181
SPDIF
175
PCM-BCK
176
PCM-DATA0
174
PCM-LRCLK
161
158
EXT ADT (0-15), EXT ADR (16-19)
EXT ADT (0-15), EXT ADR (16-19)
EXT ADT (0-7)
EXT ADT (8-15)
EXT ADR (0-7)
EXT ADR (0-15)
EXT ADR (8-15)
SDRAM DATA(0-31)SDRAM DATA(0-31)
SDRAM ADDRESS(0-10)SDRAM ADDRESS(0-10)
2
9
~
12
19
~
210
235
~
IC104 (LATCH)
D TYPE
LATCH
2
9
~
12
19
~
2
13
184
205
247
256
~~~
2
13
31
56
74
85
~~~
IC103 (FLASH ROM)
FLASH
ROM
29
36
38
45
~~
DVD MAIN CBA UNIT
DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL
DATA(AUDIO) SIGNAL
24
27
60
66
~~
EXT ADT (0-15)
EXT ADR (16-19)
~
1
9
16
25
48
~
D/A
B
VIDEO-B
160
1-9-15 1-9-16 H9504BLVD
DVD Video / Audio Block Diagram
IC601 (AUDIO DAC)
7
8
12
11
DIGITAL
AUDIO OUT
JK1202
BUFFER
Q1351
IC1201
Q1203
Q1201
Q1202
VREF
+3.3V
(AMP)
CN601 CN1601
13 13DVD-A(L)
15 15DVD-A(R)
14 14
DVD-A(L)-MUTE
16 16
DVD-A(R)-MUTE
12 12
DVD-A-MUTE
1
2
3
13
14
15
16
TO DVD
SYSTEM
CONTROL
/SERVO
BLOCK
DIAGRAM
TO
DIGITAL
SIGNAL
PROCESS
BLOCK
DIAGRAM
SERIAL
PORT
SERIAL
CONTROL
4X/8X
OVERSAMPLING
DIGITAL FILTER
/FUNCTION
CONTROLLER
ENPHANCED
MULTI-LEVEL
DELTA-SIGMA
MODULATOR
DAC
LPF+AMP
L-CH
R-CH
LPF+AMP
DAC
ZERO DETECT
SYSTEM CLOCK
1
2
6
7
5
DVD-A(L)
DVD-A(R)
PCM-BCK
SPDIF
PCM-DATA0
PCM-LRCLK
ADAC-MD
ADAC-MC
ADAC-ML
PCM-SCLK
MAIN CBADVD MAIN CBA UNIT
DVD AUDIO SIGNALDATA(AUDIO) SIGNAL
1818SPDIF
A-MUTE
+3.3V
Q1204
WF9
3
WF7
WF8
CN601
1 1VIDEO-Y
9 9VIDEO-C
3 3VIDEO-R
7 7VIDEO-G
5 5VIDEO-B
VIDEO-Y
VIDEO-C
VIDEO-R
VIDEO-G
JK1401
S-VIDEO OUT
CN1601
3 4
2
1
IC1402 (VIDEO DRIVER)
28
4dB
AMP
2dB
AMP
LPF DRIVER
Y
C
31
2dB
AMP
DRIVER
4dB
AMP
2dB
AMP
LPF DRIVER
22
4dB
AMP
2dB
AMP
LPF DRIVER
14
19
4dB
AMP
2dB
AMP
LPF DRIVER
16
6
2
33
TO DIGITAL
SIGNAL PROCESS
BLOCK DIAGRAM
DVD VIDEO SIGNAL
WF4
WF5
WF6
25
4dB
AMP
2dB
AMP
LPF DRIVER
12
VIDEO-B
TO
AUDIO
BLOCK
DIAGRAM
<VCR
SECTION>
DVD-VIDEO
TO VIDEO
BLOCK DIAGRAM
<VCR SECTION>
11
15
7
JK101
DVD-G
DVD-R
DVD-B
FIBER OPTIC
TRANS MODULE
3
IC1204
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using replacement components rated for higher voltage, wattage,
etc. Replacement parts that have these special safety
characteristics are identified in this manual and its
supplements; electrical components having such features are identified by the mark " ! " in the schematic
diagram and the parts list. Before replacing any of
these components, read the parts list in this manual
carefully. The use of substitute replacement parts that
do not have the same safety characteristics as specified in the parts list may create shock, fire, or other
hazards.
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.
2. All resistance values are indicated in ohms
3
(K=10
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in µF
(P=10
5. All voltages are DC voltages unless otherwise
specified.
6. Electrical parts such as capacitors, connectors,
diodes, IC’s, transistors, resistors, switches, and
fuses are identified by four digits. The first two digits are not shown for each component. In each
block of the diagram, there is a note such as shown
below to indicate these abbreviated two digits.
, M=106).
-6
µF).
1-10-1 SCPA1
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING
PAG ES :
1. CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components in the
power supply circuit to fail.
3. Note:
(1) Do not use the part number shown on the drawings for ordering. The correct part number is shown in the parts
list, and may be slightly different or amended since the drawings were prepared.
(2) To maintain original function and reliability of repaired units, use only original replacement parts which are listed
with their part numbers in the parts list section of the service manual.
4. Wire Connectors
(1) Prefix symbol "CN" means "connector" (can disconnect and reconnect).
(2) Prefix symbol "CL" means "wire-solder holes of the PCB" (wire is soldered directly).
5. Voltage indications for PLAY and REC modes on the schematics are as shown below:
< DVD Section >
231
5.0
The same voltage for
both PLAY & STOP modes
Indicates that the voltage
is not consistent here.
6. How to read converged lines
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to area "D3".
2. "1-B1" means that line number "1" goes to area "B1".
7. Test Point Information
: 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.
5.0
(2.5)
PLAY mode
STOP mode
< VCR Section >
5.0
The same voltage for
both PLAY, REC & DVD
modes
5.0
(2.5)
< >
PLAY mode
REC mode
DVD mode
231
Indicates that the voltage
is not consistent here.
3
2
1
ABCD
Unit: Volts
1-B1
AREA D3
AREA B1
1-D3
: Used to indicate a test point with a test pin.
1-10-2 SCRK05
Main 1/9 Schematic Diagram < VCR Section >
1-10-3
1-10-4
H9504SCM1
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