Panasonic VW-BN1PP / VW-BN1E / VW-BN1GK Service Manual ▷ View online
2007
Colour
(S)....................Silver Type
(S)....................Silver Type
DVD Burner
ORDER NO.VO0708003CE
B27
1 Safety Precaution
3
1.1.
General Guidelines
3
2 Warning
4
2.1.
Prevention of Electrostatic Discharge (ESD) to
Electrostatic Sensitive (ES) Devices
4
2.2.
Precautiopn of Laser Diode
5
2.3.
Service caution based on legal restrictions
6
3 Service Navigation
7
3.1.
Service Information
7
4 Specifications
8
5 Location of Controls and Components
9
6 Service Fixture & Tools
10
6.1.
Service Tools and Equipment
10
7 Disassembly and Assembly Instructions
11
7.1.
Disassembly Flow Chart
11
7.2.
Disassembly Procedures
11
8 Measurements and Adjustments
12
8.1.
Service Positions
12
9 Block Diagrams
13
9.1.
OVERALL BLOCK DIAGRAM
13
10 Schematic Diagrams
15
10.1. MAIN SCHEMATIC DIAGRAM
15
10.2. SUB SCHEMATIC DIAGRAM
16
11 Printed Circuit Board
17
11.1. MAIN P.C.B.
17
11.2. SUB P.C.B.
19
12 Appendix Infomation of Schematic Diagram
21
12.1. Voltage Chart
21
13 Parts and Exploded Views
22
13.1. Exploded Views
22
13.2. Replacement Parts List
24
CONTENTS
Page
Page
2
VW-BN1PP / VW-BN1E / VW-BN1GK /
1 Safety Precaution
1.1. General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock fire, or other hazards. Do not modify
the original design without permission of manufacturer.
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock fire, or other hazards. Do not modify
the original design without permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury
from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
3. When servicing, observe the original lead dress. It a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
3
VW-BN1PP / VW-BN1E / VW-BN1GK /
2 Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive
(ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminum foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an antistatic solder removal device. Some solder removal devices not classified as “antistatic (ESD protected)” can
4. Use only an antistatic solder removal device. Some solder removal devices not classified as “antistatic (ESD protected)” can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable
conductive material).
conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
CAUTION:
CAUTION:
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD)
sufficient to damage an ES device).
sufficient to damage an ES device).
4
VW-BN1PP / VW-BN1E / VW-BN1GK /