❍ VR311:
Output voltage adjustment VR (L ch)
❍ VR312:
Output voltage adjustment VR (R ch)
❍ VR401:
Balance control VR (BALANCE)
❍ VR402:
Tone control VR (BASS)
❍ VR403:
Tone control VR (TREBLE)
● Indicated voltage values are the standard values for the unit 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 theinternal impedance of the DC circuit tester.
No mark : Power ON
● Important safety notice:
Components identified by
mark have special characteristics important for safety.
Furthermore, 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 manufacturers 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.
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