HP 8901B

Model 8901B
Reference
Designator
A1
A2
A4
A5
A6
A7-A9
A1
0
A1 1
A1 2
A13
A1
4
A1 5
A1 6
A1 7
A1 8
A1 9
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33-A49
A50
A51
A52
A53
A54
A55
A56-A69
A71
A72
' A3
lbble 8A-I. Assembly and Service Sheet Cross Reference Index
Schematic
Number
Block
Assembly Name Service Sheet Diagram
Keyboard and Display
25, 26, 27 5
Audio Filters
12 4
Audio De-emphasis and Output 13 4
FM Demodulator
10,11 3
Voltmeter
14,15 4
AM Demodulator
8, 9 3
Power Supply Regulators
31,32 5
Counter
22,23 5
Controller 24 5
Remote Interface 28 5
RF Input 4 2
Buffer Amplifier (Option Series 030) 5 2
Input Mixer 5 2
IF Amplifier
5 2
LO Divider 17 2
LO Control 20,21 2
Low Frequency VCXO Filter 19 2
Low Frequency VCXO 19 2
Sampler 18 2
High Frequency VCO
18 2
Audio Motherboard 35
Power Supply Motherboard 31,32 5
Digital Motherboard 35
RF Motherboard 35
Series Regulator Heat Sink 31,32 5
Line Power 31 5
Remote Interface Connector 28
5
Power Reference Oscillator 3 2
(Not Assigned)
AM Calibrator 30 3
FM Calibrator 29 3
Audio Counter/Distortion Analyzer 16 4
Power Meter 1,2 2
IF Channel Filter (Option Series 030) 7
3
IF Amplifier/Detector (Option Series 030) 6 3
IF Channel Filter (Option Series 030) 33 3
IF Amplifier/Detector (Option Series 030) 34 3
(Not Assigned)
(Not Assigned)
(Not Assigned)
Service
8A-7