Software Testing - Alesis CoolFire 15 Service Manual

3. "STERO LINK OUTPUT" jack testing.
①
Condition: connect signal to "INPUT" jack
②between ground and signal output parallel connect one 32ohm/1w resistor.
③ Input sensitivity: input 1KHZ/-16.5dB sine wave, left/right channel output rang 36mW±2mW.
④ THD+N: 1%±0.01(distortion at 1%, output over 40mW)
⑤ Output rudimental noise:≤0.2mv±0.1mv ( at mute status: FILTER FREQ:20KHz)
⑥ Frequency response: 73Hz~3.45KHz/-3dB
⑦ Plug/unplug "HEADPHONS" no pop noise.
4. "SPEAKER OUT" jack testing:
Requirement: details criterion please refer to appendix. When the "SPEAKER OUT" is plugged the speaker
will mute.

SOFTWARE TESTING

Requirement:
a: "UP" and "DOWN" connect to 1/4"CK plug with normally-open switch.(connection please refer to
illustration)
b: "EXPESSION" jack connect to 1/4"CK plug with B50K potentiometer. (connection please refer to
illustration)
Procedures
1. Hold down both buttons and VALUE knob, and turn
on power switch.
2. Release both buttons and VALUE knob.
3. Press and release down button
4.Press and release up button
5. Press and release both buttons at the same time
6. Press and release the footswitch connected to the
"UP" footswitch inputs
7. Press and release the footswitch connected to the
"DOWN" footswitch inputs
8. Press and release the footswitches at the same time.
9. Press and release VALUE knob
10. Rotate VALUE knob to the right(clockwise)
11. Rotate VALUE knob to the left(counterclockwise)
12. Rotate EFFECT knob all the way to the right, then
back to the left (so the indicator points to "PLAY").
13.Rotate EFFECT knob one click to the right (so the
indicator points to "COMP/LIMIT").
14.Rotate EFFECT knob one click to the right (so the
indicator points to "TYPE").
15.Rotate EFFECT knob one click to the right (so the
indicator points to "HPE")
(series connect one 470Kohm resistor)
Verify the display shows "dd"
Verify the display shows "ES"
Verify the display shows "PL"
Verify the display shows "Pr"
Verify the display shows "Pb"
Verify the display shows "Pr"
Verify the display shows "PL"
Verify the display shows "Pb"
Verify the display shows "ES"
Verify the display shows "E" and a symbol of LED
segments rotating clockwise
Verify the display shows "E" and a symbol of LED
segments rotating counterclockwise
Verify that display shows 'S0' and does not flicker
Verify that display shows 'S1' and does not flicker.
Verify that display shows 'S2' and does not flicker.
Verify that display shows 'S3' and does not flicker