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Good quality service manual.The scheme is on A3 format and very readable.Thank you
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Very good service-manual with clear electrical diagrams. Thanks you.
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the manual is in quite good quality and it's in pdf. manual was send in less then 6h.
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Absolutely top, I've got now all Service-Manuals I'll need to repair my Mackie-Mixer!
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The service manuel is very helpful, we where able to restore the device to its working operation again.
TROUBLESHOOTING THE 50AF1 PANEL
(1)
YSUS
CN32
[YSUS - XSUS]
-Vs -Vs NC GND NC Vcc NC Vx NC GND NC Vs Vs
13 12 11 10 9 8 7 6 5 4 3 2 1
On Y-SUS board CN32 (1)-(4) pins or CN32 (6)-(4) pins or CN32 (8)-(10) pins or CN32 (10)-(13) pins shorted?
Y
Y-SUS board is defective.
Switching circuit (power supply) has a short-circuit.
N
Remove SDR from CN34 and CN35 on YSUS
A N A L Y S I S O P E R A T I O N
On CN801 on SDRU, or CN811 on SDRD, check for short circuit in following pins? (2)-(6), (20)-(24), (28)-(30), (46)-(50)
Y
SDR is defective.
N
On X-BUS board CN63 (1)-(9) shorted.
Y
XFPCs (Ribbon connectos to Panel)
Remove the six XFPCs (Disconnect CN61, CN62, CN63, CN64, CN65 and CN66)
N
On X-BUS board CN63 (1)-(9) are shorted.
N
Panel chassis is defective
Y
Remove XBUS-U XBUS-D
On X-BUS board CN63 (1)-(9) shorted?
Y
N
XBUS board is defective.
X-SUS board is defective.
(2)
End of analysis
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