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Manuals
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Realistic Manuals
Receiver
PRO-2020
Service manual
Realistic PRO-2020 Service Manual
Pll svnthesized vhf/uhf am/fm receiver
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Allgnmen TAND TEST POINT POSITIONS
Allgnment PREPARATION
REFERENCE FREQUENCY OSC Allgnment
IF SECTION Allgnment
Vco Alignment
RF AMP Allgnment
OVERALL Allgnment and SENSITIVITY MEASUREMENT
Eromatic Function and How to Check It
Reset Timing (IC·1)
Cpu Clock Oscillation Waveform
IC-3 Input/Output Waveform
IC·4 Input/Output Time Chart
IC·6 Input/Output Time Chart
PLL CLOCK and DATA INPUT WAVEFORMS (Lc-8)
Memory Check
Reception Check
Wiring Diagram
BOARD (TOP V Iew)
BOARD (BOTTOM View)
BOARD (TOP View)
Logic P.C.board (Bottom View)
Troubleshooting
Integrated Circuit Lead Identification
Semiconductor Lead Identification
Micro-Computer (IC-1) Port Format
Parts List
APPENDIX For VHF-Mld BAND for EUROPEAN/AUSTRALIAN MODELS
EXPLODED View
Table of Contents
Schematic Diagram (Logic Section)
SCHEMATIC DIAGRAM (Linear SECTION)
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~LI.s17c:.
Service
G0tJéIDITï)lliJéID~
~-----:-----
---.-- --------------
PRO-2020
PLL SVNTHESIZED
VHF/UHF AM/FM RECEIVER
)
Catalog Number:20-112
Manual provided by G.E. Taylor, scanned by
L.P.
Glaister VE71T
CUSTOM MANUFACTURED FOR RAD
IO
SHACK
~
A DIVISION OF TANDY CORPORATION
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