Agilent Technologies E8267C

1-21
Troubleshooting
Troubleshooting Assembly–Level Problems
Table 1-9 E8267C, Option 520, Power Supply vs. Assembly Matrix (2 of 5)
Motherboard Test Points: +8 VA
LED
+ 9 VDC
LED
+ 5.2 VDC +5.2 VAF
LED
+ 5.2D +5.2 VDF
Power Supply P232-B1-3,C4-6,D1-3 P236-B1-3,D1-3
Sampler P22-20,5 P22-14,29
Frac N P32-20,5 P32-14,29
Reference P42-20,5 P42-14,29
Lowband Output P52-20,5 P52-14,29
YTO Driver
P112-17,18,42
a
a. Originates on YTO Driver
P112-3,28 P111-64,65,129,130
ALC/Scan P122-2,27 P122-64,65,129,130
Mod Gen P132-2,27 P132-64,65,129,130
CPU P223-18 P223-2,22 P222-49,50,99,100
I/Q Multiplexer P152-2,27 P151-64,65,129,130
Baseband Generator P162-2,27 P161-64,65,129,130
Microwave Interface P201-13,14,15,16,
17,18
P201-23
20 GHz Doubler J32-7,9
20 GHz Mod Filter J31-7,9
20 GHz I/Q Modulator
J34-5,6
b
b. Originates on microwave interface
J34-7
b
J34-28
b
40 GHz Doubler J36-7,9, J33-7,9
Attenuator J13-2
Lowband Coupler/Det J15-12
Front Panel/Display P11-44
Keyboard P13-2
Display Backlight P12-1
1E5 OCXO
Rear Panel P241-11,12
Fan