Keysight Technologies Option 503 Service Manual page 309

Power Supply/Midplane Troubleshooting
A7 Midplane Board Assembly Troubleshooting
Table 10-1 A7 Midplane Board LEDs and Test Points
Supply/ Description
Signal
+32VA +32 Volt
Analog Supply
+15VA +15 Volt
Analog Supply
+15VSB +15 Volt Standby
Supply
+9VA +9 Volt
Analog Supply
+5.1VA +5.1 Volt
Analog Supply
-7VA -7 Volt
Analog Supply
-15VA -15 Volt
Analog Supply
+12VD +12 Volt
Digital Supply
+5.1VD +5.1 Volt
Digital Supply
+5.1VSB +5.1 Volt
Standby Supply
+3.35VD +3.35 Volt
Digital Supply
FAN_P Fan Positive Voltage
+3.3VA +3.3 Volt
Analog Supply
-5.2VA -5.2 Volt
Analog Supply
FAULT_L Power Supply Fault
N9030A PXA Signal Analyzer Service Guide
Referenced Generated
To On
ACOM A6
ACOM A6
ACOM A6
ACOM A6
ACOM A6
ACOM A6
ACOM A6
DCOM A6
DCOM A6
DCOM A6
DCOM A6
ACOM A6
ACOM A7
ACOM A7
ACOM A6
Expected Status
Power On
a
Power Off
LED Test Point LED
(VDC)
Red 0 Off
Red 0 Off
Green +15 ± 1.0 Green
Red 0 Off
Red 0 Off
Red 0 Off
Red 0 Off
Red 0 Off
Red 0 Off
Green +5.1 ± Green
0.75
Red 0 Off
Red 0 Off
Red 0 Off
Red 0 Off
Off TTL High Off
Test Point
(VDC)
+32 ± 2.0
+15 ± 1.0
+15 ± 1.0
+9 ± 1.0
+5.1 ± 0.75
-7 ± 1.0
-15 ± 1.0
+12 ± 1.0
+5.1 ± 0.75
+5.1 ± 0.75
+3.35 ±
0.75
9.2 - 14.5
+3.35 ±
0.75
-5.2 ± 0.75
TTL High
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