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artisan 8640B - Page 9

artisan 8640B
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TM 9-4935-601-14-7&P
CONTENTS (Continued)
Section Page
7-34 A10A1 RF Filter Assembly Switch Improvement
(Serial Prefix 1246A and Below) ............................................... 7-83
7-36 A8A1 RF Scaler Assembly Improvement (Serial
Prefix 1249A) ........................................................................... 7-83
7-38 A5 FM Amplifier Assembly Improvement (Serial
Prefix 125lA and Below) ........................................................... 7-83
7-40 A8A2 Counter/Lock Board Assembly Improvement
(Serial Prefix 1251A and Below) ............................................... 7-83
7-42 Front Panel Meter M1 Replacement (Serial
Prefix 125lA and Below) ........................................................... 7-83
7-44 A26 AM/AGC and RF Amplifier Assembly
Improvement ............................................................................ 7-84
7-46 A26A4 AGC Amplifier Assembly Improvement
(Serial Prefix 1310A and Below) ............................................... 7-84
7-48 A10A2 RF Divider Assembly Improvement (Serial
Prefix 1313A and Below) .......................................................... 7-85
7-50 Power Supply Improvement (Serial Prefix 1313A
and Below) ............................................................................... 7-86
7-52 A10A2 RF Divider Assembly Improvement (Serial
Numbers 1316A00464 and Below) ............................................ 7-86
7-54 Improved Audio Output Level Flatness (Serial
Prefixes 1244A through 1316A) ................................................ 7-86
7-56 A8A4 Counter Display Assembly Improvement
(Serial Prefixes 1323A and Below) ........................................... 7-86
7-58 Improved FM Bandwidth on 5kHz Deviation Range
(Serial Number Prefixes 1323A and 1327A................................ 7-86
7-60 Improved Noise Performance (Serial Prefixes
1327A and Below) .................................................................... 7-86
7-62 A10A2 RF Divider Assembly Improvement (Serial
Number Prefixes 1333A and Below) ......................................... 7-86
7-64 A18, A20, and A22 Power Supply Regulator
Improvements (Serial Number Prefixes 133A
and Below). ............................................................................. 7-87
7-66 Time Base Vernier and Pot Replacement (Serial
Prefix 1333A and Below) .......................................................... 7-87
7-70 All Variable Frequency Modulation Oscillator
Improvements (Serial Number Prefixes
1339A and Below) .................................................................... 7-87
7-73 A12 Rectifier Assembly Input Crowbar Failures
(Serial Number Prefixes 1330A and Below) .............................. 7-87
7-75 Reliability Improvements in AM and Pulse
Circuits (Serial Number Prefixes 1345A
and Below) ................................................................................ 7-88
vi
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