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DVD VIDEO PLAYER
SERVICE MANUAL
Mar., 2000 s
FILE NO. 813-9907
SD-5109
DIGITAL VIDEO
­ SUMMARY ­
This service manual covers only the different points from the service manual, file no. 810-9903,
for model SD-3109 since SD-5109 is basically the same designing as SD-3109.
Please refer to the file no. 810-9903 for other information.


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LASER BEAM CAUTION LABEL
1M
Ground conductive
wrist strap for body.
Soldering iron
with ground wire
or ceramic type
Conductive mat
The ground resistance
between the ground line
and the ground is less than 10
.
When the power supply is being turned on, you may not remove this laser cautions label. If it removes, radiation of a laser
may be recceived.
PREPARATION OF SERVICING
Pickup Head consists of a laser diode that is very susceptible to external static electricity.
Although it operates properly after replacement, if it was subject to electrostatic discharge during replacement, its
life might be shortened. When replacing, use a conductive mat, soldering iron with ground wire, etc. to protect the
laser diode from damage by static electricity.
And also, the LSI and IC are same as above.


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SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement
1-2. Solid Resistor Indication
1-3. Capacitance Indication
1-4. Inductor Indication
1-5. Waveform and Voltage Measurement
1-6. Others
1-7. When Replaced ROM ICs or Upgraded Firmware
2 . PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram
3-2. Front Display, Power Switch Block Diagram
3-3. Main Block Diagram
3-3-1. Logical System Block Diagram
3-4. Output Block Diagram
4 . CIRCUIT DIAGRAMS
4-1. Front Display, Power Switch Circuit Diagram
4-2. Output Circuit Diagram
4-2. Sub Video Circuit Diagram
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
SECTION 4
PARTS LIST
SAFETY PRECAUTION
NOTICE
ABBREVIATIONS
1. Integrated Circuit (IC)
2. Capacitor (Cap)
3. Resistor (Res)
4. EXPLODED VIEWS
4-1. Packing Assembly
4-2. Chassis Assembly
4-3. Mechanism Assembly
5 . PARTS LIST
General descriptions such as location of mechanical parts and troubleshooting are the same as SD-3109.
Please refer to the service manual for SD-3109 (File No. 810-9903).
Part replacement and adjustment procedures are the same as SD-3109.
Please refer to the service manual for SD-3109 (File No. 810-9903).
SECTION1
GENERAL
DESCRIPTIONS
1. OPERATING INSTRUCTIONS


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SECTION
3
SER
VICING
DIA
GRAMS
SECTION 3
SERVICING DIAGRAMS
1. CIRCUIT SYMBOLS AND SUPPLEMENTARY EXPLANATION
1-1. Precautions for Part Replacement
· In the schematic diagram, parts marked
(ex.
F801) are critical part to meet the safety regulations,
so always use the parts bearing specified part codes
(SN) when replacing them.
1-2. Solid Resistor Indication
Unit
None
........... W
K
........... kW
M
........... MW
Tolerance
None
........... ±5%
B
........... ±0.1%
C
........... ±0.25%
D
........... ±0.5%
F
........... ±1%
G
........... ±2%
K
........... ±10%
M
........... ±20%
Rated Wattage
(1) Chip Parts
None ......... 1/16W
(2) Other Parts
None ......... 1/6W
Other than above, described in the Circuit Diagram.
Type
None
........... Carbon film
S
........... Solid
R
........... Oxide metal film
W
........... Metal film
W
........... Cement
FR
........... Fusible
Symbol
+
........... Electrolytic, Special electrolytic
NP
........... Non polarity electrolytic
........... Ceramic, plastic
M
........... Film
........... Trimmer
Unit
None
........... F
m
........... mF
p
........... pF
Rated voltage
None
........... 50V
For other than 50V and electrolytic capacitors,
described in the Circuit Diagram.
Tolerance
(1) Ceramic, plastic, and film capacitors of which
capacitance are more than 10 pF.
None
........... ±5% or more
B
........... ±0.1%
C
........... ±0.25%
D
........... ±0.5%
F
........... ±1%
G
........... ±2%
(2) Ceramic, plastic, and film capacitors of which
capacitance are 10 pF or less.
None
........... more than ±5% pF
B
........... ±0.1 pF
C
........... ±0.25 pF
(3) Electrolytic, Trimmer
Tolerance is not described.
Temperature characteristic
None
........... SL
(Ceramic capacitor)
For others, temperature characteristics are
described. (For capacitors of 0.01 mF and
no indications are described as F.)
Static electricity capacity
Sometimes described with abbreviated letters as
(Ceramic capacitor)
shown in Eg. 3.
1-3. Capacitance Indication
100k
Rated Wattage
Type
Tolerance
Eg. 1
104
10x104pF (0.1
µF)
Temperature characteristic
(or Temperature characteristic+
Static electricity capacity tolerance)
Eg. 3
100
µ
Temperature
response
Rated
voltage
Tolerance
Eg. 2
Fig. 3-1-1
Fig. 3-1-3
Fig. 3-1-2
· Using the parts other than those specified shall violate
the regulations, and may cause troubles such as
operation failures, fire etc.


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DATA UPDATE KIT
(RS232C Interface/cable)
RS-232C
cable
Computer
(MS-DOS/PC-DOS)
CN601
1-4. Inductor Indication
Unit
None
........... H
m
........... mH
m
........... mH
Tolerance
None
........... ±5%
B
........... ±0.1%
C
........... ±0.25%
D
........... ±0.5%
F
........... ±1%
G
........... ±2%
K
........... ±10%
M
........... ±20%
1-5. Waveform and Voltage Measurement
· The waveforms for CD/DVD and RF shown in the
circuit diagrams are obtained when a test disc is
played back.
· All voltage values except the waveforms are expressed
in DC and measured by a digital voltmeter.
1-6. Others
· The parts marked with "NC" or "KETU" in the circuit
diagrams are not used for this model.
Eg. 4
Eg. 5
Fig. 3-1-4
Fig. 3-1-5
Type name
10
µ
Type
Tolerance
1-7. When Replaced ROM ICs or Upgraded Firmware
1. When replaced the following ROM ICs, it is necessary
to write the data into the new ICs.
1) IC615 (firmware)
2) IC613 (Setup default data and other information)
2. When the firmware is upgraded, rewriting the new
firmware into IC615 may be requested for servicing.
Fig. 3-1-6
Note:
· The firmware and setup data floppy discs are not available as service parts.
For more information, consult TOSHIBA service office in your area.
3. Connect a computer to the main PC board of the DVD
video player with using DATA UPDATE KIT (P/No.
79080074). (Fig. 3-2-6)
4. Writing operation
Refer to the instruction attached to the data floppy
disc.