Sony FDL-PT222 Circuit Boards Location, Printed Wiring Boards and Schematic Diagrams

MEMO

4-3. CIRCUIT BOARDS LOCATION

B

T1A

4-4. PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

Note:

•Capacitors without voltage indication are all 50V.

•All resistors are in ohms. kΩ =1000Ω , MΩ =1000kΩ

•Indication of resistance, which dose not have one for rating electrical power, is as follows.

Pitch : 5mm

Rating electrical power : 1/ 4 W

• : nonflammable resistor.

• : internal component.

• : panel designation and adjustment for repair.

•All variable and adjustable resistors have characteristic curve B, unless otherwise noted.

• : earth-chassis.

•As to the voltage volue shown by the semiconductors on the Shematic Diagram, see the another list

•Readings are taken with a color-bar signal input.

• Readings are taken with a 10MΩ digital multimeter.

•Voltages are dc with respect to ground unless otherwise noted.

•Voltage variations may be noted due to normal production tolerances.

•All voltages are in V.

•Circled numbers are waveform references.

• : B+ bus.

• : B– bus.

• : signal path.

Reference information

RESISTOR : RN METAL FILM

: RC SOLID

:FPRD NONFLAMMABLE CARBON

:FUSE NONFLAMMABLE FUSIBLE

Note: The symbol display is on the component slde.

The components identified by shading and mark are critical for safety. Replace only with part number specified.

The symbol indicate fast operating fuse.

Replace only with fuse of same rating as maked.

Terminal name of semiconductors in silk screen