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(Step1)
Remove the pedal assembly from the pedal box.
(Step2)
Disassemble the pedal assembly (refer to
8. Precautions before Servicing
8.1. Precautions for measuring of the output waveforms
1. The waveform was measured with a "National Digital Storage
Oscilloscope VP-5730A". Therefore the waveforms of musical
tone signals shown may differ somewhat due to the difference in
the timing of triggering.
2. Since the 1/10 test probe is used, the indicated voltage value on
the bottom part of each waveform illustration is 1/10 of the actual
value (e.g. 0.2 V/cm should be 2.0 V/cm).
3. To measure the waveforms, first set this unit to the service
diagnostic mode (refer to "WAVE ROM test"). The WAVE ROM
output will then be output as a sine wave to facilitate the servicing
check.
8.2. Important safety notice
- Components identified by a
impotant for safety.
- When replacing any of these components, use only manufacture's
specified parts.
Fig.11
).
Fig.11
mark have special characteristics
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