Funai DBVR-2700 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
DBVR-2700
PAL
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
DBVR-2700
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 Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-1
IC Pin Function Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Manufatured under license from Dolby Laboratories. "Dolby" and
the double-D symbol are trademarks of Dolby Laboratories.
"DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems Inc.
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 -6 -3 SP Mode
3-2. Output (R/P) dBV -9 -6 -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 -11 -4 SP Mode
(-20dB ref. 1kHz) at 8kHz dB -14 -4 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 42 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 -8 -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 H9300SP
< DVD Section >
ITEM CONDITIONS UNIT NOMINAL LIMIT
1. Video Output 75 ohm load Vpp 1.0
2. Optical Digital Out dBm -18
3. Audio (PCM)
3-1. Output Level 1kHz 0dB Vrms 2.0
3-2. S/N dB 110
3-3. Freq. Response
DVD fs=48kHz 20~22kHz dB ± 2
CD fs=44.1kHz 20~20 kHz dB ± 2
3-4. THD+N 1 kHz 0dB % 0.005
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
C
4. Room ambient : +25
°
1-1-2 H9300SP
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 - VISIBLE LASER
RADIATION WHEN OPEN AND
INTERLOCK DEFEATED.
AVOID EXPOSURE TO BEAM.
Location: Inside Top of DVD mechanism.
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 con-
nectors, 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.
≥ 3mm(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.
Input
In
Pin 1
c. The 1st pin of every male connector is indicated as
shown.
Pin 1
Bottom View
5
10
How to Remove / Install Flat Pack-IC
1. Removal
With Hot-Air Flat Pack-IC Desoldering Machine:.
(1) Prepare the hot-air flat pack-IC desoldering
machine, then apply hot air to the Flat Pack-IC
(about 5 to 6 seconds). (Fig. S-1-1)
Fig. S-1-1
(2) Remove the flat pack-IC with tweezers while 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)
(1) Release the flat pack-IC from the CBA using twee-
zers. (Fig. S-1-6)
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.
Caution:
1. 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)
2. The flat pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or the solder lands under the IC when removing
it.
Hot-air
Flat Pack-IC
Desoldering
CBA
Masking
Tape
Tweezers
Machine
Flat Pack-IC
Fig. S-1-2
1-4-1 DVD_NOTE
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
(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.
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
To Solid
Mounting Point
CBA
Tweezers
Hot Air Blower
or
Iron Wire
Soldering Iron
Fig. S-1-5
Fine Tip
Soldering Iron
Flat Pack-IC
Fig. S-1-6
1-4-2 DVD_NOTE
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.
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
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
(4) 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 >
CBA
Presolder
Flat Pack-IC
Fig. S-1-8
CBA
< Correct >
Grounding Band
1MΩ
CBA
1MΩ
Conductive Sheet or
Copper Plate
1-4-3 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, 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.
About REC-Safety Switch
Caution:
The REC-Safety Switch is directly mounted on the
Main CBA. When the Deck Mechanism Assembly is
removed from the Main CBA for servicing, this switch
does not work automatically.
What to do for preparation
In order to record, press the Rec button while pushing
REC-SAFETY SW on the Main CBA. See Fig. 1.
Q503
TP501
S-INH
Q504
SW506
(REC-SAFETY SW)
Fig. 1
1-5-1 H9300PFS
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
[17] Insulator
[13] Power
Supply CBA
[12] AFV CBA
[10] Main CBA
[11] Function
CBA
[2] Front
Assembly
[3] Top Bracket
[5] DVD Mecha
Assembly
[7] Rear Panel
[8] VCR Chasis
Unit
[4] Jack CBA
[16] Side
Bracket
[6] DVD Main
CBA Unit
[15] Deck
Pedestal-2
[9] Deck
Assembly
[14] Deck
Pedestal-1
2. Disassembly Method
ID/
LOC.
No.
[1] Top Cover D1 8(S-1) -
[2]
[3]
[4] Jack CBA D3 3(S-3) -
[5]
PART
Front
Assembly
Top
Bracket
DVD
Mecha
Assembly
Fig.
No.
D2
D2 4(S-2) -
D4
REMOVAL
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
*CN505, *2(L-1), Tray
Panel, *7(L-2)
3(S-4), *CN501,
*CN701
Note
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
-
ID/
LOC.
No.
[6]
[7]
[8]
[9]
[10] Main CBA D8 ---------- -
[11]
[12] AFV CBA D8 Desolder -
[13]
[14]
[15]
[16]
[17] Insulator D9 ---------- -
↓
(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.”
PART
DVD Main
CBA Unit
Rear
Panel
VCR
Chassis
Unit
Deck
Assembly
Function
CBA
Power
Supply
CBA
Deck
Pedestal-1
Deck
Pedestal-2
Side
Bracket
↓
(2)
unlocked, released, unplugged, unclamped, or
desoldered.
P=Spring, L=Locking Tab, S=Screw,
CN=Connector, W=Washer
*=Unhook, Unlock, Release, Unplug, or Desolder
e.g. 2(S-2) = two Screws (S-2),
2(L-2) = two Locking Tabs (L-2)
Fig.
No.
D5
D6 3(S-6), 3(S-7) -
D7
D8 Desolder, 2(S-10) 4,5
D8 Desolder, *CN2002 -
D9
D9 6(S-12), 3(W-1) -
D9 (S-13) -
D9 (S-14) -
↓
(3)
REMOVAL
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
3(S-5), *CN101,
*CN401
*CN001, *CN002,
5(S-8), 5(S-9)
3(S-11), Bracket,
*(L-3)
↓
(4)
Note
2
2-1
2-2
2-3
3
-
-
↓
(5)
1-6-1 H9308DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile.
Be careful not to break them.
1-1. Connect the wall plug to an AC outlet and press
the OPEN/CLOSE button to open the Tray.
1-2. Remove the Tray Panel by releasing two Locking
Tabs (L-1).
1-3. Press the OPEN/CLOSE button again to close
the Tray.
1-4. Press the POWER button to turn the power off.
1-5. Unplug an AC cord.
1-6. Disconnect connector CN505.
1-7. Remove Screw (S-1A).
1-8. Release seven Locking Tabs (L-2) (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. D5.
2-2. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN101) from
it. If you disconnect the FFC cable (CN101), the
laser diode of pickup will be destroyed. (Fig. D5)
2-3. Disconnect Connector (CN401). Remove three
Screws (S-5) and lift the DVD Main CBA Unit.
(Fig. D5)
CAUTION 3: When reassembling, confirm the FFC
cable (CN101) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D5)
4. When reassembling, solder wire jumpers as shown
in Fig. D8.
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 LDSW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D8.
[1] Top Cover
(S-1)
(S-1)
Tray Panel
(L-1)
(A)
(L-2)
(B)
[2] Front Assembly
(S-2)
(L-2)
(A)
(S-2)
(L-2)
(S-1)
[3] Top Bracket
(A)
[4] Jack CBA
(S-1)
Fig. D1
(S-2)
CN505
Fig. D2
(S-3)
Fig. D3
1-6-2 H9308DC
CN501
(S-4)
CN701
(S-4)
[5] DVD Mecha
Assembly
Fig. D4
[7] Rear Panel
(S-7)
(S-6)
(S-6)
(S-7)
Fig. D6
(S-5)
CN101
(S-5)
CN401
A
DVD Mecha
Assembly
B
Short the three short lands by soldering
View for A
(S-5)
[6] DVD Main
CBA Unit
(S-8)
(S-9)
[8] VCR Chassis
Unit
CN001
(S-8)
(S-9)
(S-8)
CN002
Fig. D7
Slide
Pickup Unit
View for B
OR
Short the three short
lands by soldering
C
View for C
Fig. D5
1-6-3 H9308DC
[9] Deck
Assembly
FE Head
CN2002
(W-1)
Cylinder Assembly
AC Head
Assembly
[12] AFV CBA
Pin
SW507
LD-SW
[10] Main CBA
[9] Deck Assembly
Cam Gear
Desolder
[11] Function CBA
(S-10)
[10] Main CBA
From
AC Head
Assembly
Lead with
blue stripe
Desolder
from bottom
Desolder
From
Cylinder
Assembly
Desolder
LD-SW
Desolder
Lead with
blue stripe
Shaft
Hole
Hole
Pin
[10] Main CBA
From
FE Head
From
Capstan
Motor
Assembly
Desolder
BOTTOM VIEW
Lead connections of Deck Assembly and Main CBA
Fig. D8
1-6-4 H9308DC
(S-11)
[13] Power Supply CBA
Bracket
(S-11)
(S-12)
[15] Deck Pedestal-2
[16] Side Bracket
(S-13)
(L-3)
[17] Insulator
(S-14)
HOW TO MANUAL EJECT
1. Remove the Top Case.
2. Make a tool from a paper clip, etc., (length = approximately 50 mm, maximum diameter = approximately 3
mm) as shown below.
3. Insert the tool into the manual eject hole on the DVD
Mecha. Then, push it until the tray is ejected.
(W-1)
(W-1)
(W-1)
[14] Deck Pedestal-1
Fig. D9
Top Cover
Tray
1
DVD Mecha
4
Eject Hole
Paper clip (Available Locally)
2
3
Straightened
portion = approximately 35mm
Deck Assembly
Length = approximately 50mm
1-6-5 H9308DC
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 "L5??" or "K" button
on the remote control unit first, then the "PLAY"
button (Front Panel only).
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
Connections of Measurement Equipment
Main CBA
VR501
(Switching Point)
(MAIN CBA)
Measurement
Equipment
TP751
GND
TP502
PLAY
(SP)
6.5H±1H
(412.7µs±60µs)
Oscilloscope
-----
Spec.
CH1 CH2
Trig. (+)
Figure 1
EXT. Syncronize Trigger Point
V-Sync
CH1
CH2
Reference Notes:
Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output waveform is at the 6.5H(412.7µs) delayed position from the
rising edge of the CH2 head switching pulse waveform.
1.0H
6.5H
Switching Pulse
0.5H
1-7-1 H9300EA
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.
BE F/W VERSION UP MODE
PLEASE INSERT A DISC
FOR BE F/W VERSION UP.
POWER
EXIT:
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
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)
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. (For closing the tray,
only the "OPEN/CLOSE" button is available.)
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.
BE F/W VERSION UP MODE
VERSION: ********
Reading...(*2)
BE F/W VERSION UP MODE
VERSION: ********
COMPLETED SUM:7abc(*3)
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programing Mode (Example)
At this time, no buttons are available.
6. For tray opening, plug the AC cord into the AC outlet.
7. Turn the power on by pressing the power button
and the tray will close.
Fig. c Programming Mode Screen
1-8-1 H9300ROM
Servo/System Control Block Diagram
(DECK ASSEMBLY)
AC HEAD ASSEMBLY
CONTROL
HEAD
CL287
5 5CTL(+)
6 6CTL(-)
Q504
ST-S
CL504
TP502
END-S
SW507
LD-SW
AL+5V
Q506
T-REEL
PS502
S-REEL
D555
S-LED
AL+5V
TIMER+5V
BLOCK DIAGRAMS <VCR Section>
IC501
MAIN CBA
Q515
RESET
(SERVO/SYSTEM CONTROL)
KEY- 2
POWER LED
CAS LED
9
95
94
10
4
80
34
LD-SW
CTL(+)
CTL(-)
ST-S
END-S
T-REEL
S-REEL79
RESET
TIMER LED
KEY- 1
8
23
24
25
7
Q507
Q501
Q502
KEY
SWITCH
TP501
SENS-INH
CN505
2 2KEY-2
6 6
POWER-LED
4 4CAS-LED
5 5TIMER-LED
CN651
FRONT JACK CBA
KEY SWITCH
D651
D653
D652
D654
POWER
CAS
TIMER
STAND-BY
AL+5V
SENSOR CBA
Q503
END-S
SENSOR CBA
CYLINDER ASSEMBLY CAPSTAN MOTOR
PG
DRUM
MOTOR
SENSOR
M
LOADING
MOTOR
M
CAPSTAN
MOTOR
M
TO DVD SYSTEM
CONTROL BLOCK
<DVD SECTION>
CL502
12 C-F/R
11
AL+15V/+12V
10 AL+12V(1)
P-ON+5V
9
GND
8
C-FG
7
C-CONT
6
GND
5
D-FG
4
LM-FWD/REV
3
D-CONT
2
D-PG
1
VR501
SW-POINT
TO
POWER
SUPPLY
BLOCK
REMOTE1
Q510
AL+5V
AL+5V
SW506
REC-SAFETY
AL+15V/+12V
AL+12V(1)
P-ON+5V
C-POW-SW
P-ON-H
P-DOWN-L
TP503
CTL
REMOCON-IN
14
CTL97
FF/REW-L84
PG-DELAY
2
REC-SAF-SW
31
C-F/R
78
C-FG
87
C-CONT
76
D-FG
89
LM-FWD/REV
81
D-CONT77
D-PG
90
OUTPUT SELECT
C-POW-SW
66
P-ON-H
67
86 P-DOWN-L
REC LED
DVD LED
VCR LED
A-MUTE-H
Hi-Fi-H-SW
A-MODE
IIC-BUS SDA
IIC-BUS SCL
DAVN-L
D-REC-H
RF-SW
C-ROTA
D-V SYNC
H-A-SW
H-A-COMP
V-ENV
26
29
30
83
19
61
72
71
20
65
18
15
13
16
17
74
AL+5V
Q511 D508
D506
Q508
D507
Q509
6
REC
DVD
VCR
IC502 (MEMORY)
SDA
5
SCL
6
IIC-BUS SDA
IIC-BUS SCL
A-MUTE-H
IIC-BUS SDA
IIC-BUS SCL
Hi-Fi-H-SW
A-MODE
OUTPUT SELECT
IIC-BUS SDA
IIC-BUS SCL
DAVN-L
D-REC-H
RF-SW
C-ROTA
D-V SYNC
H-A-SW
H-A-COMP
V-ENV
OUTPUT SELECT
TO
AUDIO BLOCK
TO
Hi-Fi AUDIO
BLOCK
TO
VIDEO BLOCK
1-9-1 1-9-2 H9308BLS
Video Block Diagram
TU701
TU-VIDEO
FRONT JACK CBA
CN651 CN505
JK653
V-IN-F
VIDEO BLOCK
JK101
V-OUT1
V-IN1
V-OUT2
V-IN2
19
20
JK102
19
20
VIDEO
V-IN-F 77
DVD-VIDEOFROM DVD
Q104
BUFFER
Q103
BUFFER
24
REC-VIDEO SIGNAL
MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL
MAIN CBA
IIC-BUS SDA
IIC-BUS SCL
IC501 (OSD)
Q301
BUFFER
OSD
CHARACTER
52
MIX
50
6
IC301
(Y/C SIGNAL PROCESS)
65
6968
46 43
SERIAL
DECORDER
TO SERVO/SYSTEM
CONTROL BLOCK
Y. DELAY
JK101
FROM DVD VIDEO BLOCK
<DVD SECTION>
DVD-R
DVD-G
DVD-B
15
11
R
G
B
7
7978
(DECK ASSEMBLY)
CYLINDER ASSEMBLY
CL253
WF1
TP751
V-OUT
IC751 (SW)
4
DVD
VCR
48
50
52
54
56
TUNER
PB/EE
TUNER
IN1
PB/EE
MUTE
IN1
IN2
FRT
IN2
FRT
MUTE
BYPASS
AGC
CHARA.
INS.
FBC
PR
1/2
LUMINANCE
SIGNAL
PROCESS
CCD 1H DELAY
CHROMINANCE
SIGNAL
PROCESS
R
Y
+
C
R P R P
P
REC FM
AGC
SP
SP
HEAD
AMP
EP
EP
HEAD
AMP
D-REC-H
RF-SW/C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
96
95
94
93
90
89
88
87
80
70
62
71
83
84
V-COM
V(L)-1
V(L)-2
V-COM
V(R)-2
WF2
TP504
RF-SW
D-REC-H
RF-SW
C-ROTA
D-V-SYNC
H-A-SW
H-A-COMP
V-ENV
Y/C
V(R)-1
61
63
3
AGC VXO
58 59
MIX
2928
21
5
1
2
3
4
5
6
TO SERVO/SYSTEM
CONTROL BLOCK
VIDEO (R)-1
HEAD
VIDEO (L)-1
HEAD
VIDEO (L)-2
HEAD
VIDEO (R)-2
HEAD
SW CTL
11109
TP301
C-PB
WF3
Q752
OUTPUT SELECT
X301
4.43MHz
TO SERVO/SYSTEM
CONTROL BLOCK
1-9-3 1-9-4 H9308BLV
Audio Block Diagram
PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC
MAIN CBA
TO Hi-Fi
AUDIO BLOCK
(DECK ASSEMBLY)
ACE HEAD ASSEMBLY
AUDIO
HEAD
AUDIO
ERASE
HEAD
N-A-PB
N-A-REC
CL287
A-PB/REC 4
A-COM 3
AE-H 1
FE-H 2
CL504
4 A-PB/REC
3 A-COM
1 AE-H
2 FE-H
Q404
Q403
BIAS
OSC
+5V
Q406
IC301
(AUDIO SIGNAL PROCESS) 1513 17
IN1
R
P
REC
AMP
5
6
1
2
PB-ON
EQ
AMP
SP/LP-ON
AUTO
BIAS
TUNER IN2
INV
98
7
3
100
ATT
ALC
DET
ALC
LINE
AMP
REC-ON
MUTE
12
11
FULL
ERASE
HEAD
FE HEAD
SERIAL
DECODER
68 69
71
IIC-BUS-SDA
A-MUTE-H
IIC-BUS-SCL
TO SERVO/SYSTEM
CONTROL BLOCK
CL501
2 FE-H
1 FE-H-GND
Q401 (PB=ON)
Q405
Q402
(PB=ON)
SWITCHING
D-REC-OFF
+5V
AUDIO HD-SW
CONTROL
16
1-9-5 1-9-6 H9308BLA
Hi-Fi Audio Block Diagram
JK101
A-IN1(R)
A-IN1(L)
A-OUT1(R)
A-OUT1(L)
A-IN2(R)
A-IN2(L)
A-OUT2(R)
A-OUT2(L)
REAR
JK652
A-IN(L)-F
JK651
A-IN(R)-F
1
3
2
6
JK102
2
6
1
3
JK751
A-OUT(R)
A-OUT(L)
CN651
FRONT JACK CBA
TU701
AUDIO
2
REC-AUDIO SIGNALPB-AUDIO SIGNAL Mode : SP/REC
IC751 (SW)
MAIN CBA
14
Q101
BUFFER
Q102
BUFFER
IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
76
75
SW
SW
ALC
ALC
D.C.
D.C.
CN505
A-IN(L)-F 99
A-IN(R)-F 1010
69
73
71
51
65
67
7
11
9
53
R-CH
INSEL
L-CH
INSEL
48
13
R-CH
PNR
47
14
SW
NOISE
P
R
LIM DEV
15
COMP
VCO
OUTPUT
SELECT
HOLD
PULSE
NOISE
DET
SW CTL
R-CH
BPF
LPF
MIX
VCR
DVD
VCR
DVD
11109
12
13
2
1
Q752
OUTPUT SELECT
COMP
DVD-A(R)
DVD-A(L)
SERIAL
DATA
DECODER
DO
DET
MUTE-ON
MUTE-ON
TO SYSTEM
CONTROL
BLOCK
TO DVD AUDIO
BLOCK
<DVD SECTION>
ENV
DET
38
39
23
1
80
78
77
40
79
26
DVD AUDIO SIGNAL
IIC-BUS SDA
IIC-BUS SCL
Q451
A-MODE
TO
SERVO/ SYSTEM
CONTROL BLOCK
Hi-Fi-H-SW
SIF
22
CN701
SIF
TO AUDIO BLOCK
CN1
22
AFV CBA
IF SINAL
PROCESS
1-9-7 1-9-8
CN1
4
5
N-A-REC
N-A-PB
TU-AUDIO(R)
TU-AUDIO(L)
CN701
4
5
LIM DEV
NOR
SW
6
4
L-CH
PNR
R
P
SW
NOISE
VCO
COMP
LPF
L-CH
BPF
LIM
31 30
R
L
24
27
CL251
Hi-Fi-A(R) 7
Hi-Fi-COM 8
Hi-Fi-A(L) 9
CYLINDER
ASSEMBLY
Hi-Fi
AUDIO
(R) HEAD
Hi-Fi
AUDIO
(L) HEAD
H9308BLH
Power Supply Block Diagram
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.
CAUTION !
Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F001) 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
HOT CIRCUIT. BE CAREFUL.
F1001
T1.6AL/250V
L1003
LINE
FILTER
Q1008
D001 - D004
RECTIFIER
BRIDGE
Q1003
Q1001
T001
2
4
7
8
IC1001
ERROR
VOLTAGE DET
4
POWER SUPPLY CBAMAIN CBA
Q053,
Q054
20
19
18
CN002 CN051 CL051
1 AL+44V
2 AL+12V
6 P-DOWN
4 AL+5V(VCR)
1
2
6
4
1
2
6
4
JUNCTION
SW+44V
Q055
SW+9V
P-ON+44V
P-ON(H)
<TO PIN 67 OF IC6001>
AL+12V
AL+12V
AL+9V
AL+5V
-B CBA
17
16
15
14
13
12
11
IC1041
+3.3V
REG.
CN001 CN050 CL050A
1 AL+5V(DVD)
3 AL-30V
6 AL+15.5V(VCR)
7 AL+15.5V(DVD)
9 AL+9V
11 AL+3.3V
13 F2
14
1
3
6
7
9
11
13
14F1
1
3
6
7
CL050B
9
11
13
14
Q056
SW+5V
Q051,
Q052
SW+15.5V
Q1054
IC1053
SHUNT
REG.
Q057
IC1052
+1.8V
REG.
JUNCTION
1
-A CBA
23
Q1055
Q1057
TIMER+5V
P-ON+5V
P-DOWN-L
<TO PIN 86 OF IC6001>
AL-30V
AL+15V/+12V
C-POW-SW
<TO PIN 66 OF IC6001>
CN1001
1 P-ON+1.8V
2 P-ON+1.8V
3 EV+2.5V
4 EV+2.5V
16 EV+3.3V
17 P-ON+3.3V
18 P-ON+3.3V
19 P-ON+3.3V
14 EV+9V
15 EV+9V
5 P-ON+5V
6 P-ON+5V
20 PWRCON
Q1053
HOT
(SHUNT REGULATOR)
IC1002
REG
Q1051,
Q1052
SW+12V
DVD P-ON+3.3V
DVD P-ON+5V
DVD P-ON+12V
EV+5V
-FL
F2
F1
H9308BLP1-9-9 1-9-10
DVD System Control Block Diagram
IC301
(FRONT END PROCESSOR)
FROM/TO
RF SIGNAL
PROCESS
/SERVO
BLOCK
DIAGRAM
FROM/TO
DVD SIGNAL
PROCESS
BLOCK
DIAGRAM
TFWD
TREV
TIN
TOUT
SCK
STDIO
SEN
MUTE
PS
CD/DVD
CFE
CAS
STANDBY
ADDRESS BUS
DATA BUS
NINT1
NINT2
WAIT
/RE
/WEL
CS1
RESET
TFWD
42
41
TREV
TIN
59
60
TOUT
SCK
70
STDIO
72
SEN
10
46 MUTE
47 PS
CD/DVD
71
CFE
62
CAS
63
STANDBY
64
13
~
16
26
CPUADR0
~
33
CPUADR17
35
40
CPUDT0
84
~ ~~
~
91
CPUDT7
76
NINT1
77
NINT2
WAIT
1
/RE
2
/WEL
3
CS1
6
RESET
11
KEY OUT
HANG
READY
/FERS
OSCI
OSCO2324
SDA
SDA
SCL
KEY IN
FG-IN
BLOCK DIAGRAMS < DVD Section >
IC601
(DVD HOST PROCESSOR)
TFWD
200
TREV
201
187
TIN
TOUT
188
+3.3V
IC605
RESET
+3.3V
124
208
186
120
20
21
127
READY
/FERS
CLOCK
SDA
SCL
IRQ2
RESET
5 4
48
49
82
X301
(16.9344MHz)
53 22BUSCLR BUSCLR
52
51
50
79SCL
44
45
1480
Q701
IC606
(INVERTER)
2 4
X601 27MHz
IC102 (OP AMP)
12
VFD-DOUT
VFD-CLK
REMOTE
CN501 CN2001CN2002CN1001
3VFD-STB
1VFD-DIN
2
204
125
FP-STB 21
21
FP-DIN 22
22
FP-DOUT 23
23
FP-CLK 24
24
REMOTE2 26
26
FP-STB 2
2
FP-DIN 5
5
FP-DOUT 1
1
FP-CLK 3
3
KEY
MATRIX
IC2001
(FRONT PANEL CONTROL)
a/KEY-1
2
FP-STB
28
FP-DIN
27
FP-DOUT
1
FP-CLK
REMOTE1
8
REMOTE2 10
10
K1 6
6
K2 5
5
KEY-1 3
3
KEY-2 2
2
KEY-4 1
1
b/KEY-2
c/KEY-3
d/KEY-4
RM2001
REMOTE
SENSOR
CL2004CL2003
8
1G
7G
K2
K1
FL2001
23
~
~
17
7
8
9
10
11
e
f
12
g
13
h
14
i
16
4
3
GRID
FIP
SEGMENT
FG
SENSOR
FG CBA
RELAY
CBA
CN401
FG-IN10
1-9-11
TO SERVO/SYSTEM
CONTROL BLOCK
<VCR SECTION>
DVD MAIN CBA UNIT FUNCTION CBAMAIN CBA
REMOTE1
1-9-12
H9308BLSD
RF Signal Process/Servo Block Diagram
PICK-UP UNIT
DETECTOR
A 6
B 9
C 10
D 7
F 4
E 5
CD/DVD 21
CD-LD 20
DVD-LD 12
PD-MONI 11
GND(DVD-PD) 14
GND(LD) 13
GND(CD-PD) 19
CN101
CN101
IC103
(SW)
AMP
Q102
1 3
AMP
Q101
DATA(VIDEO/AUDIO) SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL
IC101 (RF SIGNAL PROCESS)
HOLD
47
57
58
59
60
62
63
4
2
3
1
6
INPUT
MATRIX
TRACKING
BALANCE
FOCUS
BALANCE
LPC
AMP
VGA
EQ
TRACKING
ERROR DET
FOCUS
ERROR DET
VEL
ADJ
BDO DET
OFTR DET
MIRROR DET
SERIAL
I/F
41
46
31
30
40
39
18
6
22
7
20
11
13
14
12
SLIDE SERVO SIGNAL DISK SERVO SIGNAL
DVD MAIN CBA UNIT
TESTSG
ARF
NARF
STANDBY
SCK
STDIO
SEN
CD/DVD
FROM/TO DVD
SIGNAL PROCESS
BLOCK DIAGRAM
LOADING
MOTOR
SPINDLE
MOTOR
SLIDE
MOTOR
FSTS
CN101
FS(+) 17
FS(-) 16
TS(+) 15
TS(-) 18
RELAY CBA
M
M
M
TRAY
-IN
TRAY-OUT
TRAY-IN 3
TRAY-OUT 4
CN401
LM(+) 1
LM(-) 2
SP(-) 6
SP(+) 7
SL(+) 9
SL(-) 8
GND 5
4
+3.3V
IC401
(SERVO DRIVE)
12 6
11
14
13
10
9
18
17
15
16
FOCUS
MOTOR DRIVE
TRACKING
MOTOR DRIVE
MUTE
LOADING
MOTOR DRIVE
SPINDLE
MOTOR DRIVE
SLIDE
MOTOR DRIVE
+
-
+
-
POWER
SAVE
21
24
23
22
27
26
25
5
1
2
V-REF
4
IC201 (SERVO DSP)
DAC1
115
DAC0
114
68
SPDRV
67
TRSDRV
FBAL
TBAL
OFTR
BDO
AD1
AD0
TRCRS
AD2
AD3
66
65
51
52
118
117
90 108
119
120
IC102
(OP AMP)
5
3
7
1
FROM/TO DVD
SYSTEM CONTROL
BLOCK DIAGRAM
CFE
CAS
MUTE
TFWD
TREV
TIN
PS
TOUT
SW CBA
1-9-14
H9308BLRF1-9-13
DVD Signal Process Block Diagram
DATA(VIDEO/AUDIO) SIGNAL
FROM/TO RF SIGNAL
PROCESS/SERVO
BLOCK DIAGRAM
FROM/TO
DVD SYSTEM
CONTROL
BLOCK
DIAGRAM
ARF
NARF
TESTSG
ADDRESS BUS
DATA BUS
NINT1
NINT2
WAIT
/RE
/WEL
CS1
RESET
IC201 (DVD SIGNAL PROCESS)
111
110
82
30
~
CPUADR0
22
~
17
CPUADR17
9
CPUDT0
44
~ ~
~
37
CPUDT7
2
NINT1
5
NINT2
WAIT
6
/RE
36
/WEL
35
CS1
34
RESET
47
PLL
VCO
DATA
SLICER
BCA
DVD
DEMODULATOR
CPU
INTERFACE
MEMORY
MANAGER
VIDEO/AUDIO
INTERFACE
PARA0
PARA1
PARA2
PARA3
PARA4
PARA5
PARA6
PARA7
172
168
166
164
160
158
151
149
PARA0-PARA7
DVD MAIN CBA UNIT
TO DVD VIDEO
BLOCK DIAGRAM
X201
(16.9344MHz)
79
80
OSCI1
OSCO1
1-9-16
H9308BLD1-9-15
DVD Video Block Diagram
DATA(VIDEO) SIGNAL VIDEO SIGNALDATA(AUDIO) SIGNAL
FROM DVD
SIGNAL PROCESS
BLOCK DIAGRAM
TO DVD AUDIO
BLOCK DIAGRAM
IC602
(8Mbit FLASH MEMORY)
A0
~
A18
DQ0
~
DQ15
WE
CE
OE
PARA0-PARA7
25
~
16
ADDR1-ADDR20
8
~
1
48
29
~
45
11
26
28
A-MUTE
ADAC-MD
ADAC-MC
ADAC-ML
DATA0-DATA15
13
191
190
189
192
161
170
173
182
141
158
128
132
117
IC601 (DVD HOST PROCESSOR)
PARA0
6
~
PARA7
A-MUTE
ADAC-MD
ADAC-MC
ADAC-ML
~
INTERNAL
PERIPHERALS
PORTS
~
ADDR1
~
ADDR20
~
DATA0
~
DATA15
DQM0
CS3
OE
~
PROGRAMMABLE
CPU INTERFACE
SHARED SDRAM INTERFACE
~
AD0
AD13
58 63~66 73~ 74
I/F
VIDEO
DECODER
~
DQ0
DQ15
97
~84 93~
DATA(VIDEO/AUDIO) SIGNAL
DQML
DQMU
CACHE
SUBSYSTEM
WE
CPU
CENTRAL
COMMAND
PORT
ST20 ARBITER &
MEMORY CONTROLLER
CD FIFO
SDRAM ARBITER
VIDEO
FILTERING
RAS
CAS
79 80 78
7677
102
FRONT-END
& LINK
INTERFACE
SDRAM
BLOCK
MOVE
OSD, SP
DECODER
& MIXING
CS
AUDIO
DECODER
DENC
51
52
55
56
57
32
33
34
25
27
26
PCM-BCK
PCM-DATA0
PCM-SCLK
PCM-LRCLK
SPDIF
CN701
8 8DVD-VIDEO-Y
12 12DVD-VIDEO-C
CN701
10 10
DVD-VIDEO-CVBS
6 6DVD-VIDEO-B
4 4DVD-VIDEO-R
2 2DVD-VIDEO-G
TO DVD
AUDIO
BLOCK
DIAGRAM
CN1601
CN1601
WF3
IC1402 (VIDEO DRIVER)
WF1
4dB
6 27
AMP
2
4dB
14
16
AMP
4dB
AMP
4dB
AMP
4dB
AMP
WF2
2dB
AMP
2dB
AMP
2dB
AMP
2dB
AMP
2dB
AMP
DRIVER
LPF
LPF DRIVER
LPF DRIVER4
LPF DRIVER
LPF DRIVER
33
30
21
18
JK1401
S-VIDEO
OUT
Y C
3 4
JK1404
DVD-VIDEO
DVD-B
DVD-R
21
TO VIDEO
BLOCK
<VCR SECTION>
20 26~ 2 13~29 35~ 42 53~
~
AD0
AD13
~
DQ0
IC604
(64Mbit SDRAM)
17 18 39 16
DQ15
4dB
12
AMP
15
RAS
CAS
19
CS
WE
LDQM
UDQM
DVD MAIN CBA UNIT
2dB
LPF DRIVER
AMP
MAIN CBA
24
1-9-18
DVD-G
H9308BLVD1-9-17
DVD Audio Block Diagram
AUDIO SIGNALDATA(AUDIO) SIGNAL
IC1204
FIBER OPTIC
TRANS MODULE
3
WF6
FROM
DVD VIDEO
BLOCK
DIAGRAM
SPDIF
PCM-BCK
PCM-DATA0
PCM-LRCLK
ADAC-MD
ADAC-MC
ADAC-ML
IC801 (AUDIO DAC)
1
2
3
13
14
15
SERIAL
PORT
SERIAL
CONTROL
4X/8X
OVERSAMPLING
DIGITAL FILTER
/FUNCTION
CONTROLLER
ENPHANCED
MULTI-LEVEL
DELTA-SIGMA
MODULATOR
ZERO DETECT
SYSTEM CLOCK
16
DAC LPF+AMP
DAC
LPF+AMP
L-CH
R-CH
12
11
CN701
2121SPDIF
CN701
7
8
16 16
DVD-AUDIO-L
18 18
DVD-AUDIO-R
15 15
DVD-A-L-MUTE
17 17
DVD-A-R-MUTE
19 19
DVD-A-MUTE
CN1601
WF4
CN1601
WF5
VREF
Q1204
+3.3V
Q1203
IC1201
3
2
6
5
Q1351
BUFFER
(AMP)
Q1202
1
7
Q1201
JK1202
DVD-A(L)
DVD-A(R)
DIGITAL
AUDIO OUT
TO AUDIO
BLOCK DIAGRAM
<VCR SECTION>
PCM-SCLK
A-MUTE
DVD MAIN CBA UNIT
1-9-19 1-9-20
+3.3V
MAIN CBA
H9308BLAD
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.
Capacitor Temperature Markings
Mark
Capacity
change rate
Standard
temperature
Temperature
range
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).
(B)
(F) +30 - 80% 20°C -25~+85°C
(SR)
(Z) +30 - 80% 20°C -10~+70°C
Capacitors and transistors are represented by the following symbols.
±
±
10%
15%
20°C -25~+85°C
20°C -25~+85°C
CBA Symbols
(Top View) (Bottom View)
+
Electrolytic Capacitor
(Bottom View)
Transistor or Digital Transistor
E C B
(Top View)
(Top View)
Schematic Diagram Symbols
Digital Transistor
E C B
(Top View)
E C B
NPN Transistor
NPN Digital Transistor
PNP Transistor
E C B
(Top View)
PNP Digital
Transistor
E C B
1-10-1 SCPA1
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING
PAGES:
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. Mode: SP/REC
6. Voltage indications for PLAY and REC modes on the schematics are as shown below:
Unit: Volts
The same voltage for
both PLAY & REC modes
7. 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".
8. 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.
5.0
231
5.0
PLAY mode
REC mode
(2.5)
Indicates that the voltage
is not consistent here.
3
AREA D3
2
1
AREA B1
1-D3
ABCD
1-B1
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
1-10-2 SCRK05
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