DIGITAL MEDIA SERVER
SERVICE MANUAL
FILE NO. 810-200329
SD-H400
D I G I TA L V I D E O
DOCUMENT CREATED IN JAPAN, Sep., 2003
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.
1M9
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 109.
SAFETY NOTICE
SAFETY PRECAUTIONS
LEAKAGE CURRENT CHECK
Plug the AC line cord directly into a 120V AC outlet (do
not use an isolation transformer for this check). Use an
AC voltmeter, having 5000
W per volt or more sensitivity.
Connect a 1500
W 10 W resistor, paralleled by a 0.15 mF
150V AC capacitor between a known good earth ground
(water pipe, conduit, etc.) and all exposed metal parts of
cabinet (antennas, handle bracket, metal cabinet
screwheads, metal overlays, control shafts, etc.).
Measure the AC voltage across the 1500
W resistor.
The test must be conducted with the AC switch on and
then repeated with the AC switch off. The AC voltage
indicated by the meter may not exceed 0.3 V. A reading
exceeding 0.3 V indicates that a dangerous potential
exists, the fault must be located and corrected.
Repeat the above test with the DVD VIDEO PLAYER
power plug reversed.
NEVER RETURN A DVD VIDEO PLAYER TO THE
CUSTOMER WITHOUT TAKING NECESSARY
CORRECTIVE ACTION.
READING SHOULD NOT EXCEED 0.3V
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated "dangerous voltage" within the
product's enclosure that may be of sufficient magnitude to
constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in the
literature accompanying the appliance.
DVD VIDEO PLAYER
AC VOLTMETER
(5000 9 per volt
or more sensitivity)
Good earth ground
such as a water pipe,
conduit, etc.
1500 9
10 W
0.15 mF 150V AC
AC OUTLET
Test all exposed metal.
Voltmeter Hook-up for Leakage Current Check
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
2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
3. BLOCK DIAGRAMS
3-1. DVD Overall Block Diagram
3-2. Power Supply Block Diagram
3-3. KDB Front, Power Switch Block Diagram
3-4. Logical System Block Diagram (DVD)
3-5. Output Block Diagram (DVD)
3-6. Tivo Block Diagrams
3-6-1. Tivo Block Diagram1
3-6-1. Tivo Block Diagram2
4. CIRCUIT DIAGRAMS
4-1. Power Supply Circuit Diagram
4-2. KDB Front Circuit Diagram
4-3. Power Switch Circuit Diagram
4-4. DVD Main Circuit Diagram
4-5. Tivo Circuit Diagrams
5. PC BOARDS
5-1. Power Switch PC Board
5-2. KDB Front PC Board
5-3. DVD Main PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
1. Replacement of Mechanical Parts
1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. HDD
1-1-3. Front Panel
1-1-4. Tray Door
1-1-5. Mechanism Chassis Assembly
1-1-6. Fan
1-1-7. Rear Panel
1-2. PC Board Replacement
1-2-1. DVD Main PC Board
1-2-2. Tivo PC Board
1-2-3. Power PC board
1-2-4. KDB Front and Power Switch PC Board
2. LOCATION OF MAIN PARTS AND
MECHANISM PARTS
2-1. Location of Main Parts
2-2. Location of PC Boards
SECTION 4
PARTS LIST
SAFETY PRECAUTION
NOTICE
ABBREVIATIONS
(1) Integrated Circuit (IC)
(2) Capacitor (Cap)
(3) Resistor (Res)
1. EXPLODED VIEWS
1-1. Packing Assembly
1-2. Chassis Assembly
2. PARTS LIST
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
Please refer to the owner's manual about the contents.
SECTION
1
GENERAL
DESCRIPTIONS