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General| Frequency Response | 20Hz to 20kHz |
|---|---|
| Total Harmonic Distortion | 0.05% |
| Input Sensitivity | 1.5V |
| Signal to Noise Ratio | 100 dB |
| Gain | 29 dB |
| Power Output | 200 watts per channel into 8Ω (stereo) |
Explains protection functions shared by amplifiers and power supply, including current limiters and thermal switches.
Procedure for initial power-up and low-level signal verification.
Steps to calibrate the +75.5 VDC supply voltage at idle.
Procedure to verify smooth and symmetrical Triac firing at line frequency.
Method for adjusting amplifier bias for correct crossover notch appearance.
Procedure to test the functionality of the commutator switching.
Test for total harmonic distortion at rated power.
Test to verify the integrator's shutdown function.
Test for shutdown response to over-current or short circuits.
Test for shutdown response to low frequency or DC input.
Troubleshooting for rough or asymmetrical Triac firing, including modifications.
Diagnosing fuse blowing issues, checking line voltage and components like Triac, Diac.
Procedure to bypass protection and force unit on, identifying defective channels.
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