51-0191-0100 EP04-06 MPA4-80R Anglès.doc 1 of 4
PRELIMINARY:
1. Check the Ground Link switch.
- When the main power switch is turned off, there should be no continuity between the
amplifier's frame and power ground.
2. Be sure that the correct cable types are used.
3. Verify that the unit’s power supplies, outputs and frame are not shorted.
4. Main power switch OFF.
5. Prepare a sine wave generator providing a 0dB 1kHz output signal, but do not turn it on yet.
6. Plug the signal generator into Channel 1's XLR-type input.
7. Connect four 4
Ω
load impedances to each output 1, 2, 3, and 4. In case you have not four
impedances available, just use two, connecting them to each couple of outputs, depending
of the test step you are running.
8. Connect the millivoltmeter and the oscilloscope to the amplifier’s channels 1 and 2.
9. Turn down all of the potentiometers.
10. Configure Mini-jumpers to set REMOTE CONTROL to ON. See configuration scheme for
details.
11. Connect the amplifier's mains plug to a variac outlet, and leave its output down to 0 volts.
SWITCH POSITIONS:
SWITCH POSITION
IN1/IN1+IN2 IN1
IN2/LINK CH1
LINK CH1
STEREO / BRIDGE
STEREO
IN3/LINK CH1
LINK CH1
IN4/LINK CH2
LINK CH2
STEREO / BRIDGE
STEREO
author:
J. Colomines
date:
061129
project:
EP04-06
product:
MPA4-80R
ECLER
approved:
num:
51.0191
version:
01.00
title:
VERIFICATION PROCESS
