E8257D/67D, E8663D PSG Signal Generators Service Guide
 
Replaceable Parts 
Assemblies and Hardware Options 
2-4
A13 I/Q MUX (For instruments with serial  
prefixes < US4722/MY4722)
N/A E8251–60208 2- 12 and 2- 13
(For instruments with serial  
prefixes >
 US4722/MY4722)
N/A E8251- 60669 2- 12 and 2- 13
A14 Baseband Generator N/A E4400- 60765 2- 12 and 2- 13
A17 Baseband Generator Interface  N/A E8251- 60852 2- 13
A18 CPU  
E8251–60661
a
2- 9,  2- 10, 
2- 11 and 
2- 19
E8251–60661
a
2- 12, 2- 13 and 
2- 19
A18BT1 Lithium Battery  1420–0314 2- 19 1420–0314 2- 19
A19 Power Supply 0950–5201 2- 9,  2- 10, 
and  2- 11
0950–5200 2- 12 and 2- 13
A20 SMI (Source Module Interface)  E8251- 63663 2- 9,  2- 10, 
and  2- 11
E8251- 63663 2- 12 and 2- 13
A21 Rear Panel Interface  E8251- 63660 2- 17 E8251- 63660 2- 18
A22 Line Module  5064–5053 2- 17 9135–5695 2- 18
A23 Lowband Coupler/Detector E8251–60442 2- 9,  2- 10, 
2- 11, and 
2- 14
E8251–60444 2- 12,  2- 13, 
2- 15 and 2- 18
A24 20 GHz Highband Coupler  
(Option 503, 509, and 520)
0955–0148  2- 9 and 2- 14 0955–0148 2- 12 and 2- 15
A24 20 GHz Highband Coupler  
(Option 521)
0955–2025  2- 10 and 
2- 14
N/A
A24 40 GHz Highband Coupler  
(Option 540)
0955–1136  2- 9 and 2- 14 N/A
A24 50 GHz Highband Coupler 
(Options 532 and 544)
N/A 0955–1425 2- 13 and 2- 15
A24 67 GHz Highband Coupler 
(Options 550 and 567)
5087- 7744  2- 11 and 
2- 14
N/A
A25 20 GHz Highband Detector 
(Options 503, 509, 520, and 521)
08360- 60326
e
2- 9,  2- 10, 
2- 14, and 
2- 14
08360- 60326
e
2- 12 and 2- 15
A25 40 GHz Highband Detector 
(Option 540)
08360- 60327
e
2- 9 and 2- 14 N/A
A25 50 GHz Highband Detector 
(Options 532 and 544)
N/A
08474- 60027
e
2- 13 and 2- 15
A25 67 GHz Highband Detector 
(Options 550 and 567)
08474- 60026
e
2- 11 and 
2- 14
N/A
A25B Highband Detector Bias Board 
E8251- 63635
e
2- 9,  2- 10, 
2- 11,  2- 14, 
and  2- 14
E8251- 63635
e
2- 12, 2- 13 and 
2- 15
Assembly
E8257D and E8663D E8267D