Technics SL-HD301, Service Manual

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measured by the DC electronic circuit tester (high-impedance)with
the chassis taken as standard. Therefore, there may exist some
errors in the voltage values, depending on the internal impedance
of the DC circuit tester.
No mark: Power ON
- Important safety notice:
Components identified by mark have special characteristics
important for safety.
Furthemore, special parts which have purposes of fire-retardant
(resistors), high-quality sound (capacitors), low-noise (resistors),
etc. are used.
When replacing any of components, be sure to use only
manufacturer's specified parts shown in the parts list.
- Caution!
IC and LSI are sensitive to static electricity.
Secondary trouble can be prevented by taking care during repair.
Cover the parts boxes made of plastics with aluminum foil.
Ground the soldering iron.
Put a conductive mat on the work table.
Do not touch the legs of IC or LSI with the fingers directly.
- Voltage and signal line
: Positive voltage line
: Negative voltage line
: Source signal line
8. Schematic Diagram
9. Printed Circuit Board Diagram
10. Block Diagram
11. Wiring Connection Diagram