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THE MIXER FIXER • MACKIE DESIGNS SERVICE NEWS
THE MIXER FIXER • MACKIE DESIGNS SERVICE NEWS
SR 40•8 Solo Clock Noise
Model:
SR40•8
Serial #:
Prior to SN# AD14392
Symptom:
Digital clock noise in the PFL Solo bus.
Solution:
On the Ch1-8 Channel PCB replace the add-on resistor (backside, 36kohms)
to ground with a 50K pot (part# 130-015-00). Monitor the Solo bus in the PFL
mode and adjust the pot for minimum (null) clock noise.
J6
Old Circuit
1M
Solo PFL
36K
1M
50K trim pot
Pin 1 unused
Effective 5/8/97
1
20pf
20pf
1
1
1
2
1
3
New Circuit
1M
Solo PFL
50K
J6
SR40•8 Mono Channel PCB,
(Ch1-8 backside)
055-067-00
J6
1
20pf
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