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SECTION
3
ELECTRICAL ALIGNMENT
3-1.
PA-49 BOARD
ADJUSTMENT
[Jigs and tools]
Audio oscillator
[ Setting ]
1) Remove the top cover and the rear panel.
2) Turn RV1, RV2, RV4 and RVS on the PA-29 board fully counterclockwise.
3) Turn RV101, RV102, RV105 and RV108 on the AA-25 board fully counterclockwise.
4) Turn RV103
and RV106
on the AA-25 board fully clockwise.
5) Set the switches on the connector panel as follows.
SPEAKER
SELECT switch: EXT
INPUT IMP selector switch: 60022
3-1-1.
R-CH Input Level Adjustment
[Note]
Adjustment should be made according to Steps 1, 2 and 3.
[Connection]
Connect the output of the audio oscillator to the INPUT R XLR connector.
Step 1. +8 dBm adjustment
eSet
the output
of the audio
INPUT LEVEL meter
@RV105/AA-25
oscillator at 1 kHz, +8 dBm.
eSet
the INPUT
LEVEL
selector
switch at +8 dB.
Step 2. OdBm adjustment
eSet
the
output
of the audio
INPUT LEVEL meter
GRV4/PA-49
oscillator at 1 kHz,
OdBm.
eSet
the INPUT
LEVEL
sefector
switch at
OdB.
Step 3. +4 dBm adjustment
|
condions =
|S
etcatons
|
Austen
eSet
the
output
of the audio
INPUT LEVEL meter
@ RV5/PA-49
oscillator at 1 kHz, +4 dBm.
eSet
the INPUT
LEVEL
selector
0+0.2dB
switch at +4 dB.
.
3-1(E)
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