Scott DCX710SL Service Manual
SECAMPAL
SERVICE MANUAL
DVD PLAYER &
VIDEO CASSETTE RECORDER
DCX710SL
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded views
I Parts List
Sec. 2: Deck Mechanism Section
I Standard Maintenance
I Alignment for Mechanism
I Disassembly/Assembly of Mechanism
I Alignment Procedures of Mechanism
I Deck Exploded Views
I Deck Parts List
MAIN SECTION
DVD PLAYER &
VIDEO CASSETTE RECORDER
DCX710SL
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
Function Indicator Symbols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9-8
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 > . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12-2
IC Pin Function Descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13-1
Lead Identifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14-1
Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15-1
Mechanical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16-1
Electrical Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17-1
Sec. 1: Main Section
I Specifications
I Preparation for Servicing
I Adjustment Procedures
I Schematic Diagrams
I CBA’s
I Exploded Views
I Parts List
Manufactured under license from Dolby Laboratories. "Dolby" and
the double-D symbol are trademarks of Dolby Laboratories.
1-1-1 H9774SP
SPECIFICATIONS
< VCR Section >
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.
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
SP Mode,
W/O Burst
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
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
1-1-2 H9774SP
< DVD Section >
NOTES:
1. All Items are measured without pre-emphasis unless otherwise specified.
2. Power supply : 220 - 240 V ~ 50 Hz
3. Load imp. : 100 k ohm
4. Ambient temperature : 5
°C ~ 40 °C
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 1 kHz 0 dB Vrms 2.0
3-2. S/N dB 90
3-3. Freq. Response
DVD fs = 48 kHz ± 0.5dB Hz 20~22 k
CD fs = 44.1 kHz ± 0.5dB Hz 20~20 k
3-4. THD+N
DVD 1 kHz 0dB % 0.01
CD 1 kHz 0dB % 0.01
1-2-1 E5P_LASER
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
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.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
Drive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
1-3-1 DVD_SFNP-F
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.
1-3-2 DVD_SFNP-F
Chassis or Secondary Conductor
dd'
Primary Circuit Terminals
AC Voltmeter
(High Impedance)
Exposed Accessible Part
B
One side of
Power Cord Plug Prongs
Z
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
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
2. Leakage Current Test
Confirm the specified (or lower) leakage current
between B (earth ground, power cord plug prongs)
and externally exposed accessible parts (RF terminals, antenna terminals, video and audio input and
output terminals, microphone jacks, earphone jacks,
etc.) is lower than or equal to the specified value in the
table below.
Measuring Method (Power ON) :
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across the terminals of load
Z. See Fig. 2 and the following table.
AC Line Voltage Clearance Distance (d), (d’)
230 V
≥ 3 mm(d)
≥ 6 mm(d’)
Table 2: Leakage current ratings for selected areas
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
AC Line Voltage Load Z Leakage Current (i)
One side of power cord plug
prongs (B) to:
230 V
2kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
RF or
Antenna terminals
50kΩ RES.
Connected in
parallel
i≤0.7mA AC Peak
i≤2mA DC
A/V Input, Output
Fig. 1
Fig. 2
1-4-1 DVD_NOTE
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown.
2. For other ICs, pin 1 and every fifth pin are indicated
as shown.
3. The 1st pin of every male connector is indicated as
shown.
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.
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)
Top View
Out
In
Bottom View
Input
5
10
Pin 1
Pin 1
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
Fig. S-1-1
1-4-2 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.
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)
(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)
(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
Hot-air
Flat Pack-IC
Desoldering
Machine
CBA
Flat Pack-IC
Tweezers
Masking
Tape
Fig. S-1-2
Flat Pack-IC
Desoldering Braid
Soldering Iron
Fig. S-1-3
Fine Tip
Soldering Iron
Sharp
Pin
Fig. S-1-4
1-4-3 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
Soldering Iron
Iron Wire
or
Hot Air Blower
Fig. S-1-5
Fine Tip
Soldering Iron
CBA
Flat Pack-IC
Tweezers
Fig. S-1-6
Example :
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Fig. S-1-7
Presolder
CBA
Flat Pack-IC
Fig. S-1-8
1-4-4 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.
CBA
< Incorrect >
CBA
Grounding Band
Conductive Sheet or
Copper Plate
1MΩ
1MΩ
< Correct >
1-5-1 H9700PFS
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.
Q504
Q503
TP501 S-INH
Fig. 1
1-6-1 H9774DC
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchar t i ndica tes the disas sembly ste ps to g ain
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.
2. Disassembly Method
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.”
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
[1] Top Case D1 8(S-1) -
[2]
Front
Assembly
D2 *3(L-1), *3(L-2)
1
1-1
1-2
[3]
Top
Bracket
D2 3(S-2) -
[4]
DVD
Mecha
Assembly
D3
4(S-3), *CN401,
*CN601
-
[5]
Partition
Plate
D3 (S-4) -
[6]
Power
Suppy
CBA
D3 2(S-5), CN501 -
[1] T op Case
[2] Front Assembly
[3] T op Bracket
[4] DVD Mecha Assembly [8] DVD Main CBA
[5] Partition Plate
[7] Loader Holder
[6] Power Supply CBA
[9] VCR Chassis Unit
[10] Deck Assembly
[11] DVD Open/Close CBA
[13] Main CBA
[12] Power SW CBA
[14] Jack-A CBA
[7]
Loader
Holder
D3 2(S-6) -
[8]
DVD Main
CBA
D4
2(S-7), *CN201,
*CN301
2
2-1
2-2
3
[9]
VCR
Chassis
Unit
D5
5(S-8), 2(S-9),
2(S-10), (L-3)
-
[10]
Deck
Assembly
D6
Desolder,
2(S-11), (S-12)
4,5
[11]
DVD
Open/
Close
CBA
D6 Desolder -
[12]
Power SW
CBA
D6 Desolder -
[13] Main CBA D6 ---------- -
[14]
Jack-A
CBA
D6 Desolder, 2(S-13) -
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
ID/
LOC.
No.
PART
REMOVAL
Fig.
No.
REMOVE/*UNHOOK/
UNLOCK/RELEASE/
UNPLUG/DESOLDER
Note
1-6-2 H9774DC
Reference Notes
CAUTION 1: Locking Tabs (L-1) and (L-2) are frag ile.
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 th e 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 conn ected compl etely. Then remove
the solder from the three short lands of FPC cable.
(Fig. D4)
4. When reasse mbling, sol der wi re jum pers as s hown
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 G ear with the pin of LDSW, the shaft of Cam Gear with the hole of LD-SW
as shown in Fig. D6.
Fig. D1
(S-1)
(S-1)
(S-1)
(S-1)
[1] T op Case
[2] Front
Assembly
(S-2)
(S-2)
[3] T op Blacket
Fig. D2
(L-1)
(L-1)
(L-2)
1-6-3 H9774DC
(S-3)
(S-5)
(S-4)
(S-6)
CN501
CN401
CN601
(S-3)
(S-3)
[5] Partition Plate
[6] Power
Supply CBA
[7] Loader
Holder
[4] DVD Mecha
Assembly
Fig. D3
CN201
CN301
(S-7)
(S-7)
[8] DVD Main CBA
DVD Mecha
A
Fig. D4
Short the three short lands by soldering.
(Either of two places.)
Connector
View for A
(S-8)
(S-9)
(S-9)
(S-8)
(S-8)
(L-3)
[9] VCR Chassis Unit
Fig. D5
(S-10)
(S-10)
1-6-4 H9774DC
(S-11)
Lead with blue stripe
Desolder
from bottom
(S-12)
(S-13)
(S-11)
[13] Main CBA
[14] Jack-A CBA
[10] Deck
Assembly
[11] DVD
Open/Close CBA
FE Head
Cylinder
Assembly
ACE Head
Assembly
Fig. D6
From
FE Head
BOTT OM VIEW
Lead connections of Deck Assembly and Main CBA
Desolder
From
Capstan
Motor
Assembly
Printing side
Desolder
From
Cylinder
Assembly
From
ACE Head
Assembly
Lead with
blue stripe
Lead with
blue stripe
Desolder
Lead with
red stripe
[13] Main CBA
SW507
LD-SW
LD-SW
Pin
Hole
Hole
Shaft
Cam Gear
[13] Main CBA
[10] Deck Assembly
Pin
[12] Power
SW CBA
Desolder
Lead with blue stripe
Desolder
Lead with
blue stripe
1-6-5 H9774DC
View for A
Rotate this roulette in
the direction of the arrow
A
DVD Mecha
HOW TO EJECT MANUALLY
1. Remove the Top Case.
2. Rotate the roulette in the direction of the arrow as
shown below.
3. Pull the tray slowly with a hand.
1-7-1 H9700EA
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 proce-
dures, make sure that the tracking control is set in
the center position: Press either "CHANNEL L5??" or
"CHANNEL K" button on the front panel first, then
the "PLAY" button on the front panel.
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 position during
playback.
Symptom of Misadjustment:
May cause Head Switching noise or vertical jitter
in the picture.
Reference Notes:
Playback the Alignment tape and adjust VR501 so that
the V-sync front edge of the CH1 video output waveform is at the 6.5H±1H (412.7µs±63.5µs) delayed
position from the rising edge of the CH2 head switching pulse waveform.
Test point Adj.Point Mode Input
TP751(V-OUT)
TP504(RF-SW)
GND
VR501
(Switching Point)
(MAIN CBA)
PLAY
(SP)
-----
Tap e
Measurement
Equipment
Spec.
FL6A Oscilloscope
6.5H±1H
(412.7µs±63.5µs)
Connections of Measurement Equipment
Oscilloscope
Main CBA
TP751
CH1 CH2
Trig. (+)
GND
TP504
Figure 1
EXT. Syncronize Trigger Point
1.0H
CH1
CH2
Switching Pulse
V-Syn
c
0.5H
6.5H±1H (412.7µs±63.5µs)
1-8-1 H9700TEST
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.
The DVD player can also enter the version up
mode with the tray open. In this case, Fig. a will be
shown on the screen while the tray is open.
3. Load the disc for version up.
4. The DVD player enters the F/W version up mode
automatically. Fig. c appears on the screen and
Fig. d appears on the VFD. If you enter the F/W for
different models, “Disc Error” will appear on the
screen, then the tray will open automatically.
The appearance shown in (*2) of Fig. c is
described as follows:
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)
At this time, no buttons are available.
6. Remove the disc on the tray.
7. Unplug the AC cord from the AC outlet. Then plug it
again.
8. Turn the power on by pressing the [POWER] button
and the tray will close.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.
10.Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
When “OK” appears on the screen, the factory
default will be set. Then the firmware renewal mode
is complete.
11.To exit this mode, press [POWER] button.
F/W Version Up Mode Model No : *******
VERSION : *.**
Please insert a DISC
for F/W Version Up.
EXIT: POWER
"
*******
" differ depending on the models.
Fig. a Version Up Mode Screen
Fig. b VFD in Version Up Mode
VERSION : D5****_****.ab5
Reading...(*2)
F/W Version Up Mode Model No : *******
VERSION : *.**
Fig. c Programming Mode Screen
"
*******
" differ depending on the models.
Fig. d VFD in Programming Mode (Example)
AppearanceNo. State
Reading... Sending files into the memory
Erasing... Erasing previous version data
Programming...
1
2
3 Writing new version data
VERSION : D5****_****.ab5
Completed
SUM : 7ABC (*3)
F/W Version Up Mode
Model No : *******
VERSION : *.**
"
*******
" differ depending on the models.
Fig. e Completed Program Mode Screen
Fig. f VFD upon Finishing the Programming Mode (Example)
MODEL : *******
Version
: *.**
Region
: *
EXIT: POWEREEPROM CLEAR : CLEAR
Fig. g
"
*******
" differ depending on the models.
MODEL : *******
Version
: *.**
Region
: *
EEPROM CLEAR : OK
EXIT: POWEREEPROM CLEAR : CLEAR
"
*******
" differ depending on the models.
Fig. h
1-9-1
Servo/System Control Block Diagram
H9774BLS
BLOCK DIAGRAMS <VCR SECTION>
M
LOADING
MOTOR
CAPSTAN MOTOR
CONTROL
HEAD
AC HEAD
ASSEMBLY
MAIN CBA
KEY- 1
ST-S
T-REEL
REMOTE-VIDEO
CTL(+)
RESET
REC-SAF-SW
PG-DELAY
CTL(-)
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
END-S
14
949510480
34
2
131518
33
16
31
7
(DECK ASSEMBLY)
T-REEL
Q515
RESET
Q506
S-REEL
79
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
OUTPUT SELECT
A-MUTE-H
AUDIO-SW1
AUDIO-SW2
AUDIO-SW1
AUDIO-SW2
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
OUTPUT-SELECT
SW506
TO VIDEO
BLOCK DIAGRAM
TO AUDIO
BLOCK DIAGRAM
SDA
SCL
IC502 (MEMORY)
72
IIC-BUS SCL
D-V-SYNC
D-REC-H
RF-SW
H-A-SW
C-ROTA
IIC-BUS SDA
H-A-COMP
V-ENV
DVD-POWER
REMOTE-VIDEO
DVD-POWER
58
C-SYNC
C-SYNC
OUTPUT-SELECT
IIC-BUS SCL
71
LD-SW
9
AL+5V
AL+5V
SW507
LD-SW
AL+5V
D555
S-LED
TO POWER
SUPPLY BLOCK
DIAGRAM
TP501
SENS-INH
CAPSTAN
MOTOR
IC501
(SERVO/SYSTEM CONTROL)
5
6
SENSOR CBA
SENSOR CBA
END-S
ST-S
Q504
Q503
REC-SAFETY
END-S
CTL
97
TP503
CTL
82
TO DVD SYSTEM
CONTROL BLOCK
DIAGRAM
<DVD SECTION>
CN502
C-FG
C-CONT
D-PFG
C-F/R
90
76
87
78
LM-FWD/REV
81
D-CONT
77
AL+20.5V/+12V
AL+12V(2)
P-ON+15V
P-ON+5V
1
AL+20.5V/+12V
2
P-ON+5V3C-FG4C-F/R5C-CONT6GND7LM-FWD/REV
8
D-CONT9D-PFG10GND11AL+12V(2)
12
P-ON+15V
M
21
DVD-LED
VCR-LED
Q508
Q509
29
D503
VCR
D502
DVD
AL+5V
POWER-LED
REC-LED
TIMER-LED
Q507
23
KEY SWITCH
KEY SWITCH
CN504
CL504
2 CTL(+)
1 CTL(-)
FRONT-AV
FRONT-AV
26
25
Q511
D504 REC
Q502
D501 TIMER
30
836263
20
CYLINDER ASSEMBLY
DRUM
MOTOR
PG
SENSOR
M
11KEY-1
33
POWER-LED
CN509
D651
CN508
AL+5V
POWER SW CBA
POWER
SW651
POWER
65
TRICK-H
61
SECAM-H
TRICK-H
SECAM-H
1-9-2
Video Block Diagram
H9774BLV
IIC-BUS SDA
IIC-BUS SCL
CYLINDER ASSEMBLY
V(R)-1
V-COM
V(L)-1
CN251
123
(DECK ASSEMBLY)
VIDEO (R)-1
HEAD
SP
HEAD
AMP
EP
HEAD
AMP
REC FM
AGC
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
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
456
TU701
IC301
(Y/C SIGNAL PROCESS)
IC501 (OSD)
REC-VIDEO SIGNAL
SERIAL
DECORDER
485052
56
24
50
52
19
20
JK101
V-OUT1
V-IN1
61
63
969594
93
908988
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
RPRP
EP
Y. DELAY
Y/C
MIX
+
21
7978
AGC VXO
OSD
CHARACTER
MIX
FBC
1/2
58 59
65
2928
69 68
46 43
84
837162
70
D-REC-H
80
BUFFER
Q104
DVD
VCR
TP751
V-OUT
WF3
TU-VIDEO
MAIN CBA
54
TP504
RF-SW
WF1
OUTPUT-SELECT
DVD-VIDEO
TO SERVO/SYSTEM
CONTROL BLOCK DIAGRAM
C-SYNC
C-SYNC
67
IC751
(OUTPUT SELECT)
4
3
5
11109
SW CTL
(TUNER UNIT)
MODE: SP/RECPB-VIDEO SIGNAL DVD VIDEO SIGNAL
V-OUT2
8
V-IN2
8
10 10
JACK-A CBA
19
20
JK1402
V-OUT2
V-IN2
CN2017
CN2018
BUFFER
Q103
JK752
V-IN
TO DVD VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
FRONT
55
COLOR
-IN
TP301
C-PB
WF2
TRICK-H
SECAM-H
PAL/SECAM
DETECTOR
171418216
29128
25
44
IC370 (PAL/SECAM DECTECTOR)
X301
4.43MHz
1-9-3
Audio Block Diagram
H9774BLA
REC
AMP
100
3
AUTO
BIAS
2
1
+5V
+5V
Q404
Q406
BIAS
OSC
Q403
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)
4 A-PB/REC
CN504
3 A-COM
1 AE-H
2 AE-H/FE-H
AUDIO
HEAD
AUDIO
ERASE
HEAD
AC HEAD ASSEMBLY
FE HEAD
2 FE-H
1 FE-H-GND
CN501
MAIN CBA
PB-AUDIO SIGNALREC-AUDIO SIGNAL
Mode : SP/REC
71
A-MUTE-H
IIC-BUS SCL
IIC-BUS SDA
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
FULL
ERASE
HEAD
68 69
SERIAL
DECODER
(DECK ASSEMBLY)
12
16
INV
ATT
261
3
JK1402
A-IN2(R)
A-IN2(L)
A-OUT2(R)
A-OUT2(L)
JACK-A CBA
A-IN2
55
A-OUT2
11
CN2017CN2018
JK101
A-OUT1(R)
A-OUT1(L)
261
3
A-IN1(R)
A-IN1(L)
IC751
(OUTPUT SELECT)
12
13
14
15
2
1
11
10
9
SW
CTL
VCR
DVD
VCR
DVD
TO SERVO/ SYSTEM
CONTROL BLOCK
DIAGRAM
OUTPUT-SELECT
DVD AUDIO SIGNAL
REAR
JK751
A-OUT(R)
A-OUT(L)
SW CTL
13
IC1404
(INPUT SELECT)
12
11
14
17
15
13
FRONT
JK754
A-IN
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
FRONT-AV
SW
CTL
IC151 (SWITCHING)
PB/EE
PB/EE
PB/EEPBTUNER
IN2
IN1
IN1
AUDIO-SW-1
AUDIO-SW-2
152
4
1214151110
9
3
13
BUFFER
Q156
BUFFER
Q157
TU701(TUNER UNIT)
AUDIO OUT21
DVD-A-OUT(R)
DVD-A-OUT(L)
TO DVD VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
Q753
Q754
A-MUTE(L)
A-MUTE(R)
TO DVD VIDEO/AUDIO
BLOCK DIAGRAM
<DVD SECTION>
TP401
JK1-A-
OUT(L)
1-9-4
H9774BLP
Power Supply Block Diagram
AC1001
F1001
T1.6AL/250V
LINE
FILTER
L1003
D001 - D004
BRIDGE
RECTIFIER
2
4
Q1001
Q1003
Q1008
Q1004
7
8
1
23
4
IC1001
ERROR
VOLTAGE DET
T0011
MAIN CBAPOWER SUPPLY CBA
HOT CIRCUIT. BE CAREFUL.
20
19
18
17
16
15
14
13
12
11
1 EV+1.2V
2 EV+1.2V
3 EV+3.3V
4 EV+3.3V
5 EV+3.3V
7 P-ON+5V
8 EV+11V
9 EV+11V
6 P-ON+3.3V
17 PWRCON
C-POW-SW
P-ON+5V
P-ON-H
P-DOWN-L
P-ON+44V
AL-30V
AL+12V
TIMER+5V
AL+5V
AL+20.5V/+12V
Q053,Q054
SW+44V
Q1053,
Q1054
SW+12V
Q056
SW+5V
Q051,Q052
SW+20.5V
P-ON+15V
DVD P-ON+12V
Q057
CL051A CL051B CN051
1 AL+44V13 AL+12V35
AL+5V(P-DOWN)
5
6 AL+5V68 AL+20.5V
8
CL052A CL052B
<TO PIN 67 OF IC501>
<TO PIN 86 OF IC501>
<TO PIN 66 OF IC501>
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.
IC1003
+3.3V REG.
IC1002
+1.2V REG.
JUNCTION
CBA
CN051A
13568
13568
101214
101214
EV+3.3V
DVD P-ON+3.3V
DVD P-ON+5V
Q1055
CL1051
SW+5V
Q1052
SW+3.3V
Q058
Q059
SW+5V
HOT
COLD
11AL+30V
33AL+2.8V
55AL+4V
1-9-5
H9774BLSD
DVD System Control / Servo Block Diagram
BLOCK DIAGRAMS <DVD SECTION>
IC101
FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL
SLED SERVO SIGNAL SPINDLE SERVO SIGNAL
DVD MAIN CBA UNITDRIVE CBA
IC301
(SERVO DRIVE)
CN301
M
SLED
MOTOR
M
SPINDLE
MOTOR
(MICRO CONTROLLER)
+
-
+
-
+
-
+
-
+
-
+
-
+
-
SLED
MOTOR
DRIVE
FOCUS
ACTUATOR
DRIVE
SPINDLE
MOTOR
DRIVE
TRACKING
ACTUATOR
DRIVE
147
TRAY-IN
SLD
75
SPDL76
TRACKING
DRIVE
148
FOCUS DRIVE
TO DIGITAL SIGNAL
PROCESS BLOCK
DIAGRAM
FS(+)
FS(-)
TS(+)
TS(-)
TO DVD
VIDEO/ AUDIO
BLOCK DIAGRAM
57
ADAC-MD
56 ADAC-MC
86 ADAC-ML
ADAC-MC
ADAC-ML
PCM-SCLK
88
A-MUTE
ADAC-MD
A-MUTE
163
PCM-SCLK
TRAY-IN
3SP(+)
4SP(-)
5TRAY-IN
6GND
7SL(-)
8SL(+)
VREF
RESET73
RESET
IC462
1 3
+3.3V
IC202
(OP AMP)
15
16
14
13
12
11
17
18
23
645
312
25
24
27
26
SL-AMP
143
SP-ROT
+3.3V
1
2
6
7
5
3
146
FD-OFST
139
TD-OFST
ASPECT
21
ASPECT
13
12
81
14
66
REMOTE
SENSOR
RM2001
REMOTE-VIDEO
MAIN CBA
21
TO SERVO/SYSTEM
CONTROL BLOCK
DIAGRAM
<VCR SECTION>
DVD-POWER
CN401 CN1051
DVD-PLAY 25
25
DVD-STOP 2626DVD-POWER 2323DVD-OPEN/CLOSE
DVD-PLAY
DVD-STOP
DVD-POWER
DVD-OPEN/CLOSE
24
24
Q2002
Q2012
EV+3.3V
EV+3.3V
D2001
DISC IN
D2002
PLAY
SW2021 STOP
SW2005 SKIP-UP
SW2006 SKIP-DOWN
SW2022 PLAY
535465
68
826061
67
REMOTE-DVD
59
SKIP-UP
DISC-IN
SKIP-DOWN
PLAY
DISC-IN 20
SKIP-DOWN 19
SKIP-UP 21
PLAY 18
REMOTE-DVD 22
22
201918
EV+3.3V
SW2020
CN2015 CN2016
DVD OPEN/CLOSE
1
DVD-OPEN/CLOSE
1
DVD OPEN/CLOSE CBA
2
EV+3.3V
2
1-9-6
H9774BLD
Digital Signal Process Block Diagram
DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL
DATA(AUDIO) SIGNAL
C16
D18
A17
B15
E14
F12
DVD-LD 8
CD-LD 10
PD-MONI 7
FS(+) 2
FS(-) 3
TS(+) 1
TS(-) 4
CN201
CN201
CN201
IC201
(SW)
IC503 (SDRAM) IC101 (MICRO CONTROLLER)
FS
FS(+)
CD/DVD
FS(-)
TS(+)
TS(-)
TS
PICK-UP
UNIT
DETECTOR
CD/DVD 19
Q251,Q252
CD DVD
AMP
Q253,Q254
AMP
4
1 3
6
GND(DVD-PD)
6
GND(CD-PD)
5
GND(LD)
9
TO DVD SYSTEM
CONTROL/SERVO
BLOCK DIAGRAM
RF
SIGNAL
PROCESS
CIRCUIT
DVD/CD
FORMATTER
AUDI O
I/F
VIDEO
I/F
NTSC/PAL
ENCODER
DMA
BCU
INST.
ROM
32BIT
CPU
DATA
RAM
INTERRUPT
CONTROLLER
WATCH DOG
TIMER
CPU
I/F
TIMER
DECODER
I/F
CPU
I/F
READ
MEMORY
DATA
RAM
DSP
DECODER
I/O
PROCESSOR
INST.
ROM
DATA
RAM
INST.
ROM
SERIAL
D/A
GENERAL
I/O
INTERRUPT
CONTROLLER
TIMER
WATCH DOG
TIMER
REMOTE
CONTROL
32BIT CPU
STREAM
I/F
EXTERNAL
MEMORY
I/F
SDRAM
ECC
UMAC
114
115
116
117
132
131
134
133
129
130
126
124
125
123
83
DEBUG
BCU
INST
RAM
DATA
RAM
D/A
D/A
D/A
TO DVD
VIDEO
/AUDIO
BLOCK
DIAGRAM
156
158
Y
C
R
B
VIDEO-Y
VIDEO-C
VIDEO-R
VIDEO-B
TO DVD
VIDEO
/AUDIO
BLOCK
DIAGRAM
177
SPDIF
170
PCM-BCK
171
PCM-DATA
169
PCM-LRCLK
152
151
23~51
SDRAM DATA(0-15)
SDRAM ADDRESS(0-10)
SDRAM ADDRESS(0-11)
217
238
~
1
18
252
256
~~
2
134253
~~
IC103 (FLASH ROM)
FLASH
ROM
293638
45
~
~
DVD MAIN CBA UNIT
222629
35
~~
D/A
149
G
VIDEO-G
FDQ (0-15)
~
1
9
162548
~
192~212
FADR (0-19)
SDRAM DATA(0-15)
1-9-7
H9774BLVD
DVD Video / Audio Block Diagram
IC601 (AUDIO DAC)
7
8
11
DIGITAL
AUDIO OUT
JK1202
BUFFER
Q1351
IC1201
AUDIO+5V
(AMP)
CN601 CN1601
14 14DVD-A(L)
16 16DVD-A(R)
15 15
DVD-A(R)-MUTE
13 13
DVD-A-MUTE
123
131415
16
FROM
DVD
SYSTEM
CONTROL
/SERVO
BLOCK
DIAGRAM
FROM
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
7
6
213
DVD-A-OUT(L)
A-MUTE(L)
DVD-A-OUT(R)
A-MUTE(R)
PCM-BCK
SPDIF
PCM-DATA0
PCM-LRCLK
ADAC-MD
ADAC-MC
ADAC-ML
PCM-SCLK
MAIN CBA
DVD MAIN CBA UNIT
DVD AUDIO SIGNALDATA(AUDIO) SIGNAL
19
19
SPDIF
A-MUTE
+3.3V
Q1204
WF9
5
WF7
WF8
CN601 CN1601
11VIDEO-Y
10 10VIDEO-C
44VIDEO-R
88VIDEO-G
66VIDEO-B
VIDEO-Y
VIDEO-C
VIDEO-R
VIDEO-G
FROM DIGITAL
SIGNAL PROCESS
BLOCK DIAGRAM
DVD VIDEO SIGNAL
VIDEO-B
TO AUDI O
BLOCK DIAGRAM
<VCR SECTION>
11
15
7
JK101
DVD-G
DVD-R
DVD-B
JK1401
S-VIDEO OUT
3 4
2
1
YC
DVD-VIDEO
TO VIDEO
BLOCK DIAGRAM
<VCR SECTION>
IC102 (VIDEO DRIVER)
10
4dB AMP 2dB AMP
LPF DRIVER
11
4dB AMP 2dB AMP
LPF DRIVER
134dB AMP 2dB AMP
LPF DRIVER
5
4dB AMP 2dB AMP
LPF DRIVER
6
8dB AMP
DRIVER
4dB AMP 2dB AMP
LPF DRIVER
3
1 7
8
6
1
IC1403 (VIDEO DRIVER)
-6dB
WF4
WF5
WF6
FIBER OPTIC
TRANS MODULE
3
IC1204
1-9-8 H9700FIS
FUNCTION INDICATOR SYMBOLS
Note:
If a mechanical malfunction occurs, the power is turned off. When the power comes on again after that by
pressing [POWER] button, an error message is displayed on the TV screen for 5 seconds.
TV screen
When reel and capstan mechanism is not functioning
correctly
When tape loading mechanism is not functioning correctly
When cassette loading mechanism is not functioning
correctly
When the drum is not working properly
P-ON Power safety detection
MODE INDICATOR ACTIVE
When reel and capstan mechanism is not
functioning correctly
“A R” is displayed on a TV screen. (Refer to Fig. 1.)
When tape loading mechanism is not functioning correctly
“A T” is displayed on a TV screen. (Refer to Fig. 2.)
When cassette loading mechanism is not
functioning correctly
“A C” is displayed on a TV screen. (Refer to Fig. 3.)
When the drum is not working properly
“A D” is displayed on a TV screen. (Refer to Fig. 4.)
P-ON Power safety detection
“A P” is displayed on a TV screen. (Refer to Fig. 5.)
A
R
Fig. 1
A
T
Fig. 2
A
C
Fig. 3
Fig. 4
A
D
A
P
Fig. 5
1-10-1 SCPA1
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
(K=10
3
, M=106).
3. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
4. All capacitance values are indicated in µF
(P=10
-6
µF).
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.
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