The Finished Product Test Procedure of aVERB II
1. Test Instruments:
a. Dual oscillagraph
b. AP (ATS-2 or System Two)
c. AC power supply or AC/DC Adapter: 9V
2. Instruments setting:
a. Connect the signal generator or AP output signal to L (Mono) Input (unbal-GND, 20 Ohm
Z-Out), and the AP input to L, R (BNC-Unbal).
b. BW: 22Hz 22 KHz, FLTR: A Weighting.
c. Adjust the AP output signal to sine waveform 1 KHz, -20dbm.
3. Test Procedure:
a. After connecting the voltage converter (9V) to the AC socket, the PWR (Red) will light up.
b. Rotate the “VARIATIONS” (the smaller knob) to “1” position, and the “PRESETS” (the larger
one) to “HALL1” position.
c. Rotate the “INPUT”, “OUTPUT” knobs to maximum, the ”MIX” to minimum, the L/R output
signal is -20dbm (±2dbm), when rotate the “INPUT”, “OUTPUT” knobs to minimum, there is
no output signal. (Rotate the “INPUT”, “OUTPUT” knobs to maximum after the test is
finished)
d. rotate the “MIX” knob to maximum, L: -14dbm (
±
2dbm), R: -20dbm (
±
2dbm). During rotating
this knob from minimum to maximum, the effect will be changed.
e. The “PRESET” knob has 16 functions in this aVERB II, the testing parameter please see the
below table (the “LEVEL” parameter is the reference).
No.
PRESETS
L-OUT/R-OUT LEVEL (±2dbm)
Note
1
HALL1
-14.0 dbm/-20 .0dbm
2
HALL2
-11.0 dbm/-8.0 dbm
3
HALL3
-19.0 dbm/-13.0 dbm
4
SPRING1
-18.0 dbm/-17.0 dbm
5
SPRING2
-18.0 dbm/-19.0 dbm
6
TAPE
-17.0 dbm/-17.0 dbm
7
PLATE1
-16.0 dbm/-27.0 dbm
8
PLATE2
-17.0 dbm/-17.0 dbm
9
TREMOLO
XXX
The signal will be changed (-17
→
-19
→
-17 dbm)
10
CHORUS
-17.0 dbm/-17.0 dbm
11
FLANGE
XXX
The signal will be changed (-9
→
-26
→
-9 dbm)
12
DELAY
-16.0 dbm/-16.0 dbm
6. TEST PROCEDURE
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