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.
Mar., 2000 s
LASER BEAM CAUTION LABEL
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.
Ground conductive
wrist strap for body.
Soldering iron
with ground wire
or ceramic type
1MΩ
Conductive mat
The ground resistance
between the ground line
and the ground is less than 10Ω.
GENERAL DESCRIPTIONS
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1.OPERATING INSTRUCTIONS
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).
SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
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
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
• 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
UnitNone...........W
K...........kW
M...........MW
ToleranceNone...........±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.
TypeNone...........Carbon film
S...........Solid
R...........Oxide metal film
W...........Metal film
W...........Cement
FR...........Fusible
• Using the parts other than those specified shall violate
the regulations, and may cause troubles such as
operation failures, fire etc.
Eg. 1
Fig. 3-1-1
1-3. Capacitance Indication
Symbol
UnitNone...........F
Rated voltageNone...........50V
Tolerance(1) Ceramic, plastic, and film capacitors of which
Temperature characteristicNone........... SL
(Ceramic capacitor)For others, temperature characteristics are
Static electricity capacitySometimes described with abbreviated letters as
(Ceramic capacitor)shown in Eg. 3.
+
........... Electrolytic, Special electrolytic
NP
...........Non polarity electrolytic
...........Ceramic, plastic
M
...........Film
...........Trimmer
m...........mF
p...........p F
For other than 50V and electrolytic capacitors,
described in the Circuit Diagram.
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.
described. (For capacitors of 0.01 mF and
no indications are described as F.)
Eg. 2
Fig. 3-1-2
Eg. 3
104
4
pF (0.1µF)
10x10
Temperature characteristic
(or Temperature characteristic+
Static electricity capacity tolerance)
Fig. 3-1-3
SERVICING DIAGRAMS
SECTION 3
1-4. Inductor Indication
Type name
10µ
TypeTolerance
UnitNone...........H
m...........mH
m...........mH
ToleranceNone...........±5%
B...........±0.1%
C...........±0.25%
D...........±0.5%
F...........±1%
G...........±2%
K...........±10%
M...........±20%
1-5. Waveform and Voltag e 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.
1-7. When Replaced ROM ICs or Upgraded Firmware
Eg. 4
Fig. 3-1-4
Eg. 5
Fig. 3-1-5
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.
DATA UPDATE KIT
(RS232C Interface/cable)
RS-232C
cable
Computer
(MS-DOS/PC-DOS)
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.
Note:
• The firmware and setup data floppy discs are not available as service parts.
For more information, consult TOSHIBA service office in your area.