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The service manual when downloaded and printed out was clear and easy to read. I would have liked to have been able to enlarge some details, but this was not possible as the file permissions did not allow this. The service was very good. The time taken from placing my order to downloading the document was only a few minutes.
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The manual is useful for trouble shooting for an old instrument. It saved money,and let me enjoy DIY.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Perfect source of information for replacing the HDD and performing general diagnostics.
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Very good scanned copies. Quick response and reasonable price. Thanks for service!
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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