Read Panasonic PT-DW740U / PT-DW740E / PT-DX810U / PT-DX810E (serv.man2) Service Manual Simplified online
■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).
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
1. Schematic Diagram ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
8
: Polypropylene
: Z-Type
1.1. A -P.C.Board
3. Coil
The unit of inductance is a H, unless otherwise noted.
2. Circuit Boards Diagram ・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・
15
4. Test Point
2.1. A -P.C.Board
: Test Point
5. HOT and COLD indications
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.
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.
5. Be sure to make your orders of replacement parts according to parts list section.
< Schematic Diagram >
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.
Model No.
PT-DW740U / DW740E /
DW740UL / DW740EL
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:
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.
* A-P.C.Board only, different from the PT-DZ770 series.
PT-DX810U / DX810E /
DX810UL / DX810EL
Important Safety Notice
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