Toshiba SD-9500E User manual

Owners Manual
TOSHIBA
The power to open people’s eyes
SD9500E

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 received.
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.
1M W
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 W .

SECTION 2
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 3
SERVICING DIAGRAMS
1. STANDING PC BOARDS FOR SERVICING
2. CIRCUIT SYMBOLS AND
SUPPLEMENTARY EXPLANATION
2-1. Precautions for Part Replacement
2-2. Solid Resistor Indication
2-3. Capacitance Indication
2-4. Inductor Indication
2-5. Waveform and Voltage Measurement
2-6. Others
3. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM
4. BLOCK DIAGRAMS
4-1. Overall Block Diagram
4-2. Power Supply Block Diagram
4-3. Front Display, Power Switch Block Diagram
4-4. Main Block Diagrams
4-5. Video Block Diagram
4-6. Audio Block Diagram
5. CIRCUIT DIAGRAMS
5-1. Power Supply Circuit Diagram
5-2. Front Display, Power Switch Circuit Diagram
5-3. Main Circuit Diagrams
5-4. Video Circuit Diagram
5-5. Audio Circuit Diagram
5-6. Motor System Circuit Diagrams
6. PC BOARDS
6-1. Power Supply PC Board
6-2. Power Switch PC Board
6-3. Video Output PC Board
6-4. Main PC Board
6-5. Audio Output PC Board
6-6. Front PC Board
6-7. Display PC Board
CONTENTS
SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
Specifications
2. LOCATION OF MAIN PARTS AND
MECHANISM PARTS
2-1. Location of Main Parts
2-2. Location of Mechanism Parts
1. REPLACEMENT OF MECHANICAL PARTS
1-1. Cabinet Replacement
1-1-1. Top Cover
1-1-2. Bottom Plate
1-1-3. Front Panel
1-1-4. Rear Panel
1-1-5. Stay
1-2. PC Board Replacement
1-2-1. Video Output PC Board
1-2-2. Main PC Board
1-2-3. Audio Output PC Board
1-2-4. Power Supply PC Board
1-2-5. Front and Power SW PC Boards
1-2-6. Display PC Board
1-3. Mechanism Parts Replacement
1-3-1. Mechanism Chassis Assembly
1-3-2. Tray Assembly
1-3-3. Loading Belt, Loading Motor, Loading Gear
1-3-4. Eject Detection Switch
1-3-5. Mechanism Detection Switch
1-3-6. Sub Chassis
1-3-7. Pickup Mechanism Assembly
1-3-8. Gear B Assembly, Gear A and Rack Gear Assembly
1-3-9. Feed Motor
3. TROUBLESHOOTING
3-1. Main Circuit
3-1-1. Servo System
3-1-2. Location Diagram of Servo Test Point
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

SECTION 1
GENERAL DESCRIPTIONS
1. OPERATING INSTRUCTIONS
SECTION 1
GENERAL DESCRIPTIONS

2
Introduction
SAFETY PRECAUTIONS
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE
TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE
ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL
ONLY.
CAUTION: This Digital Video Disc Player employs a Laser System.
To ensure proper use of this product, please read this owner’s manual carefully and retain for
future reference. Should the unit require maintenance, contact an authorized service location -
see service procedure.
Use of controls or adjustments or performance of procedures other than those specified herein
may result in hazardous radiation exposure.
To prevent direct exposure to laser beam, do not try to open the enclosure.
Visible and invisible laser radiation when open and interlocks defeated.
DO NOT STARE INTO BEAM.
CLASS 1
LASER PRODUCT
General Information
If the socket outlets in your home are not suitable for the plug supplied with this
unit, the plug must be cut off and an appropriate one fitted.
The plug severed from this mains lead must be destroyed as it is hazardous if
inserted into a live socket.
IMPORTANT
The wires in this mains lead are coloured in accordance with the following code:
BLUE: NEUTRAL
BROWN: LIVE
As the colours of the wires in the mains lead of this unit may not correspond
with the coloured markings identifying the terminals in your plug, proceed as
follows:
The wire that is coloured blue must be connected to the terminal in the plug
which is marked with the letter N or coloured black.
The wire that is coloured brown must be connected to the terminal which is
marked with the letter L or coloured red.
Do not connect either wire to the earth terminal which is marked by the letter E
or by the safety earth symbol or coloured green or green-and-yellow.
Use a 5A fuse which is approved by ASTA or BSI to BS1362.
Always replace the fuse cover after changing the fuse.
The following information applies only to the model for U.K.
In the spaces provided below, record the Model and Serial No. located on the rear panel of your DVD player.
Model No. Serial No.
Retain this information for future reference.

3
Introduction
Location of the required label
The rating plate and the safety caution are on the rear of the unit.

4
Introduction
IMPORTANT SAFETY INSTRUCTIONS
CAUTION: PLEASE READ AND OBSERVE ALL WARNINGS AND INSTRUCTIONS GIVEN IN THIS
OWNER’S MANUAL AND THOSE MARKED ON THE UNIT. RETAIN THIS BOOKLET FOR
FUTURE REFERENCE.
This set has been designed and manufactured to assure personal safety. Improper use can result in electric
shock or fire hazard. The safeguards incorporated in this unit will protect you if you observe the following
procedures for installation, use and servicing. This unit is fully transistorized and does not contain any parts that
can be repaired by the user.
DO NOT REMOVE THE CABINET COVER, OR YOU MAY BE EXPOSED TO DANGEROUS VOLTAGE.
REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONLY.
6. Clean only with dry cloth.
1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.

5
Introduction
S3125A
7. Do not block any ventilation openings. Install in accordance with the
manufacturer’s instructions.
8. Do not install near any heat sources such as radiators, heat registers, stoves,
or other apparatus (including amplifiers) that produce heat.
9. Protect the power cord from being walked on or pinched particularly at plugs,
convenience receptacles, and the point where they exit from the apparatus.
10.Only use attachments/accessories specified by the manufacturer.
11.Use only with the cart, stand, tripod, bracket, or table specified by the
manufacturer, or sold with the apparatus. When a cart is used, use caution
when moving the cart/apparatus combination to avoid injury from tip-over.

6
Introduction
IMPORTANT SAFETY INSTRUCTIONS
12. Unplug this apparatus during lightning storms or when unused for long periods
of time.
13.Refer all servicing to qualified service personnel. Servicing is required when
the apparatus has been damaged in any way, such as power-supply cord or
plug is damaged, liquid has been spilled or objects have fallen into the
apparatus, the apparatus has been exposed to rain or moisture, does not
operate normally, or has been dropped.
14.When you use headphones, keep the volume at a moderate level. If you use
the headphones continuously with high volume sound, it may cause hearing
damage.
15.Do not overload wall outlets; extension cords, or integral convenience
receptacles as this can result in a risk of fire or electric shock.
16.Never insert objects of any kind into this apparatus through openings as they
may touch dangerous voltage points or short-out parts that could result in a
fire or electric shock. Never spill liquid of any kind on the apparatus.

7
Introduction
17.Keep your fingers well clear of the disc tray as it is closing. Neglecting to do
so may cause serious personal injury.
18.Do not place a heavy object on or step on the apparatus. The object may fall,
causing serious personal injury and serious damage to the apparatus.
19.Do not use a cracked, deformed, or repaired disc. These discs are easily
broken and may cause serious personal injury and apparatus malfunction.