HP 8970B - Block Diagram

1-2 HP 8970B Option 020 Service Manual Supplement
Block Diagram and Parts List
Block Diagram
Block Diagram
Figure 1-1: HP 8970B Option 020 Front End Schematic
2.05 GHz Low Pass Filter
4 - 6 GHz
Y.T.O
J1
J3
J5
J2
J4
MIXER
LO
IF
RF
ISOLATOR
I/P
O/P
4.5 GHz LPF
Second Convertor
600 MHz SAW
Oscillator
J5
J4 J3
J2
J1
INPUT ASSEMBLY
PAD 1
PAD 2
PAD 3
(924)
TO A4 ASSEMBLY
(925)
(926)
20 dB AMP (923)
+15 V (2)
DETECTOR (927)
-15 V (7)
W1
W2
W3
W4
W5
W6
W7
W8
W9
92
0
92
2
50 Ω
LO MONITOR