Chapter 5 — Troubleshooting
5-5 Troubleshooting Tables
MG3702xA MM
PN: 10370-10372 Rev. B
5-17
•
If the instrument fails to power up, go to
.
4.
Press the front panel
RF OUTPUT ON/OFF
button on and off.
•
If the yellow and green LEDs toggle, the malfunction may be caused by a failed front panel circuit.
Replace the front panel assembly.
•
If the LEDs do not toggle or if both LEDs are lit, the problem may be caused by a CPU
malfunction. Replace the A2 PCB.
5.
If the instrument fails to power up, contact your local Anritsu service center for assistance.
Table 5-5.
Power Supply Module Regulated Outputs
A1 (A3) P3 Pin #
Regulator Output (V)
Related Source
32A
GRN REFERENCE
1A
+5V_SB
Standby power supply
2A
+3.3VA
Main Power Supply (Positive V)
6A
+5VA
Main Power Supply (Positive V)
10A
+12VS
Standby power supply
14A
+15VB
Main Power Supply (Positive V)
16A
-15VB
Main Power Supply (Negative V)
18A
+24VB
Main Power Supply (Positive V)
20A
+10VB
Main Power Supply (Positive V)
22A
+24V_TUNE
Main Power Supply (Positive V)
24A
+8VB
Main Power Supply (Positive V)
24B
+8VA
Main Power Supply (Positive V)
26B
+7VA
Main Power Supply (Positive V)
27A
+15VC
Main Power Supply (Positive V)
29A
+15V_MMW
Main Power Supply (Positive V)
31A
-15V_MMW
Main Power Supply (Negative V)
32B
+12VF
Standby power supply for fan (+8V during standby)
Summary of Contents for MG3702xA Series
Page 4: ......
Page 5: ......
Page 8: ...TG 8 PN 10370 10372 Rev B MG3702xA MM ...
Page 24: ...1 12 Test Equipment List Chapter 1 General Information 1 10 PN 10370 10372 Rev B MG3702xA MM ...
Page 42: ...2 5 RF Deck Assemblies Chapter 2 Functional Description 2 18 PN 10370 10372 Rev B MG3702xA MM ...
Page 120: ...5 5 Troubleshooting Tables Chapter 5 Troubleshooting 5 24 PN 10370 10372 Rev B MG3702xA MM ...
Page 182: ...Index 4 PN 10370 10372 Rev B MG3702xA MM ...
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