Alto EQU231- MKII V2, Service Manual

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EQU 231 -MKII V2 Finished Product Test
Test Instruments
1. AP (Audio Precision)
2. Dual-track oscilloscope
Instrument setting
1. Set proper AC input voltage
2. Connect the output signal of AP to the input of EQU231-MKII V2
3. Connect the output of EQU231-MKII V2 to the input of AP
Adjustment according to following procedures
1. Set the potentiometer of 31-band EQ in center, set the input level at 0dB, all buttons out
2. Turn input level to maximum, the output level and the distortion shall be as following
3. Set INPUT LEVEL at minimum, the output level shall be and distortion shall be as following
7. Test Procedure
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