Panasonic BT-4LH310 Parts List - Page 64

Panasonic BT-4LH310 Manual

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SECTION 4 SCHEMATIC DIAGRAM Model No. BT-4LH310 P/E/MC CONTENTS 1. Block Diagram 1 - 1. Signal Processing 1 - 2. Power Supply DIA-2 2. Interconnection Block Diagram DIA-4 3. Schematic Diagram 3 - 1. LCD MAIN -P.C.Board ( DIA-5 ~36 ) 3 - 2. FRONT -P.C.Board ( DIA-37 ) 3 - 3. JACK -P.C.Board ( DIA-38 ) 3 - 4. HEADPHONE -P.C.Board ( DIA-39 ) 3 - 5. VOLUME -P.C.Board ( DIA-40 ) 3 - 6. LCD TALLY -P.C.Board ( DIA-41 ) 3 - 7. AC DC -P.C.Board ( DIA-42~43 ) 3 - 8. DC DC -P.C.Board ( DIA-44~50 ) DIA-5 4. Circuit Boards Diagram DIA-51 4 - 1. LCD MAIN -P.C.Board 4 - 2. FRONT/JACK/HEADPHONE/VOLUME/LCD TALLY -P.C.Board 4 - 3. AC DC -P.C.Board 4 - 4. DC DC -P.C.Board Important Safety Notice Components identified by the international symbol have special characteristics important for safety. When replacing any of these components, use only the manufacturer's specified ones. ■Notes 1. Resistor All the resistors are carbon 1/4W resistors, unless marked as follows. The unit of resistance is an OHM [Ω] (K=1 000 M=1 000000). : Nonflammable : Metal Oxide : Solid : Metal Film : Wire Wound : Fuse 2. Capacitor : Temperature Compensation : Electrolytic : Polyester : Bipolar : Metalized Polyester : Dipped Tantalum : Polypropylene : Z-Type 3. Coil The unit of inductance is a H, unless otherwise noted. 4. Test Point : Test Point 5. HOT and COLD indications The power circuit board contains a circuit area using a separate power supply to isolate the ground connection. The circuit is defined by HOT and COLD indications in the schematic diagram. Take the precautions below: 6. This schematic diagram is the latest at the time of printing and the subject to change without notice. ■Precautions 1. NEVER touch the HOT part or the HOT and COLD parts at the same time, or you may get an electric shock. 2. NEVER short-circuit the HOT and COLD circuits, or the fuse may blow and the parts may break. 3. NEVER connect an instrument such oscilloscope to the HOT and COLD circuit simultaneously, or the fuse may blow. Connect the ground of instruments to the ground of the circuit being measured. 4. MAKE SURE to unplug the power cord from the power outlet before removing the chassis. 5. Be sure to make your orders of replacement parts according to parts list section.

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■
Notes
1. Resistor
All the resistors are carbon 1/4W resistors, unless marked as follows.
The unit of resistance is an OHM [Ω] (K=1 000 M=1 000000).
: Nonflammable
: Metal Oxide
: Solid
: Metal Film
: Wire Wound
: Fuse
2. Capacitor
1. Block Diagram
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
DIA-2
: Temperature Compensation
: Electrolytic
1 - 1.
Signal Processing
: Polyester
: Bipolar
1 - 2.
Power Supply
: Metalized Polyester
: Dipped Tantalum
: Polypropylene
: Z-Type
2. Interconnection Block Diagram
・・・・・・・・・・・・・・・・・・・・・・・・
DIA-4
3. Coil
The unit of inductance is a H, unless otherwise noted.
3. Schematic Diagram
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
DIA-5
4. Test Point
3 - 1.
LCD MAIN -P.C.Board
(
DIA-5 ~36
)
: Test Point
3 - 2.
FRONT -P.C.Board
(
DIA-37
)
5. HOT and COLD indications
3 - 3.
JACK -P.C.Board
( DIA-38
)
3 - 4.
HEADPHONE -P.C.Board
( DIA-39
)
3 - 5.
VOLUME -P.C.Board
( DIA-40
)
6. This schematic diagram is the latest at the time of printing and the subject to change without notice.
3 - 6. LCD TALLY -P.C.Board
( DIA-41
)
3 - 7. AC DC -P.C.Board
( DIA-42~43
)
■
Precautions
3 - 8.
DC DC -P.C.Board
( DIA-44~50
)
1. NEVER touch the HOT part or the HOT and COLD parts at the same time, or you may get an electric shock.
2. NEVER short-circuit the HOT and COLD circuits, or the fuse may blow and the parts may break.
4. Circuit Boards Diagram
・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
DIA-51
4 - 1.
LCD MAIN -P.C.Board
4 - 2.
FRONT/JACK/HEADPHONE/VOLUME/LCD TALLY -P.C.Board
4. MAKE SURE to unplug the power cord from the power outlet before removing the chassis.
4 - 3. AC DC -P.C.Board
5. Be sure to make your orders of replacement parts according to parts list section.
4 - 4.
DC DC -P.C.Board
3. NEVER connect an instrument such oscilloscope to the HOT and COLD circuit simultaneously, or the fuse may blow.
Connect the ground of instruments to the ground of the circuit being measured.
SECTION 4
Components identified by the international symbol
have special characteristics important for safety.
When replacing any of these components, use only the manufacturer's specified ones.
The power circuit board contains a circuit area using a separate power supply to isolate the ground connection.
The circuit is defined by HOT and COLD indications in the schematic diagram. Take the precautions below:
CONTENTS
SCHEMATIC DIAGRAM
Model No.
BT-4LH310 P/E/MC
Important Safety Notice