Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 13

WJ-8718-19/FE HF RECEIVER CONTENTS
Figure
TABLE OF CONTENTS (Cont'd)
LIST OF ILLUSTRATIONS
SECTION III
Page
3-15 Input Converter Functional Block Diagram 3_31
3-16 10.7 MHz Filter Switch Functional Block Diagram !.!!!!!!!!!! 3-33
3-17 10.7 MHz/455 kHz Converter Functional Block Diagram WWW 3-35
3-18 455 kHz Filter Switch Functional Block Diagram WW 3-37
3-19 AGC Amplifier Functional Block Diagram WWW!!!! 3-38
3-21 455 kHz Amplifier/AM Detector Functional Block Diagram!!."!!!'." 3-41
3-22 FM/CW/SSB Detector Functional Block Diagram WW 3-42
3-23 Audio Amplifier Functional Block Diagram WWW!!!!!! 3-44
3-23 1st LO Functional Block Diagram WWW" 3-47
3-24 2nd LO Functional Block Diagram WWW!!!!!! 3-48
3-25 3rd LO Functional Block Diagram WW!!!!!!!!!!!!! !! 3-49
3-26 !-it-.^->
3-27
3-28
3-29
BFO Functional Block Diagram 3_53
Time Base Circuits Functional Block Diagram!!!!!!!!!!!!!!!!!!!!! 3_56
Synthesizer Interface/Memory Block Diagram ..WWW! 3-58
IF Interface Block Diagram WWW 3-61
3-30 Asynchronous I/O Block Diagram WWW 3-63
3-31 Serial I/O Buffer Block Diagram •••...
3-32 Sync Serial I/O Block Diagram WW .WW 3-68
3-33 Front Panel Encoder Block Diagram ...WWW! 3-70
SECTION IV
4-1 Receiver Checkout Procedure, Test Setup 4_6
4-2 Input Converter Alignment Test Setup 4.55
4-3 10.7 MHz Filter Switch Adjustment, Test Setup WW!! 4-66
4-4 455 kHz Amplifier/AM Detector Response Alignment, Test Setup!.'!! 4-68
4-5 455 kHz Amplifier/AM Detector Response Alignment, Typical Response 4-69
4-6 4^5 kHz Amplifier/AM Detector Gain Adjustment, Test Setup 4-70
4-7 FM Discriminator Alignment, Test Setup 4-72
4-8 FM Discriminator Alignment, Typical Response .WW! 4-72
4-9 Preselector Alignment, Test Setup W! 4-74
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