Agilent Technologies E8267C

1-20
Troubleshooting
Troubleshooting Assembly–Level Problems
Table 1-8 E8267C, Option 520, Power Supply vs. Assembly Matrix (1 of 5)
Motherboard Test Points:
LED
+32 VDC –24 VREF
LED
+15 VDC +15 VAF
LED
+10 VDC
LED
+ 8 VDC
Power Supply P231-A4-6 P231-B1-3,D1-3 P233-B1-3,D1-3
P232-A4-6
Sampler P22-7 P22-6,21
Frac N P32-7 P32-6,21
Reference P42-7 P42-6,21
Lowband Output P52-7 P52-6,21
YTO Driver P112-6 P112-5,30 P112-15,16,40
ALC/Scan P122-4 P122-28
Mod Gen P132-4 P132-28
CPU P223-4 P223-23 P223-39 P223-40
I/Q Multiplexer P152-4 P152-28
Baseband Generator P162-4 P162-28
Microwave Interface P201-1 P201-2,3,4 P201-5,6,7,8,9,10 P201-29
a
20 GHz Doubler J32-5 J32-19 J32-21
20 GHz Mod Filter J31-5 J31-19 J31-21
20 GHz I/Q Modulator J34-8
a
a. Originates on microwave interface.
J34-3
a
40 GHz Doubler J36-5, J33-5 J36-19,J33-19 J36-21,J33-21
Attenuator J13-1
Lowband Coupler/Det J15-8
Rear Panel P241-13,14 P241-17,18
Fan