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4-12
MAINTENANCE
AI CLIP Setting
+20dBu
+27dBu
+10dBu
+5dBu
Readings can vary as much as ±1.5dB. Verify the output increments
smoothly through its range. If this is not the case (i.e., the output level jumps
erratically to some large or small level), the gain stages of the SSM2017 IC
are not functioning correctly.
K)
Repeat steps 5-A through 5-J for the Right Input XLR connector.
6. Check frequency response of Analog I/O.
A)
Verify 6200 software controls are set to their default settings. (Refer to page 4-9.)
Press
button to re-access Setup menu.
B)
Setup
C)
Press
TEST
soft key to access Test menu.
Recall bypass preset: Press
D)
pass, then release the
Bypass defeats all compression, limiting, and program equalization, but re-
tains MAX LPF frequency setting.
E)
Connect the oscillator to the Left Input XLR connector.
Inject the Left Input XLR connector with a level of +7.3dBu with the oscillator set
F)
to 1kHz.
G)
Connect the audio analyzer to the 6200's Left Monitor (output) XLR connector.
Verify a level of 0dBu ±1dB. Use this level as the reference level.
H)
I)
Measure and verify output signal level from 30Hz to 20kHz is within ±0.4dB of
the reference level.
The maximum deviation between the maximum and minimum output should
be within ±0.8dB.
Repeat steps 6-A through 6-I for the right channel.
J)
7. Check distortion performance of Analog I/O.
Verify 6200 software controls are set to their default settings. (Refer to page 4-9.)
A)
Press
button to re-access Setup menu.
B)
Setup
Press
soft key to access Test menu.
C)
TEST
D)
Recall bypass preset: Press
pass, then release the
Bypass defeats all compression, limiting, and program equalization, but re-
tains MAX LPF frequency setting.
Left Monitor Output Level
~−7.4dBu
~−14.3dBu
~+2.6dBu
~+7.6dBu
soft key, use the control knob to scroll to by-
MODE
soft key.
MODE
MODE
soft key, use the control knob to scroll to by-
soft key.
MODE
Orban Model 6200
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