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: Positive voltage line
: Main (CD, FM) signal line
: FM signal line
: CD Playback signal line
- The voltage values and waveforms are the reference voltage of this
measured by the DC electronic voltmeter (high impedance) and
oscilloscope on the basis of GND terminal (DC IN jack).
Accordingly, there may arise some errors in the voltage valuesand
waveforms depending upon the internal impedance of the tester
or measuring unit.
Measurement conditions:
- AC adaptor is used for power supply.
- Set the hold switch to ON.
No mark
: CD stop mode
: CD playback mode / (Test disc 1kHz, L+R, 0dB)
: FM mode
: AM mode
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.
22
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