Table Of Contents - Radio Shack Realistic PRO-34 Service Manual

CONTENTS
Page
contente- . . ·· · · · · ·. . ···· ··· ·· ···· ·. . · · · · . .
Specifications ·· · · · ·. .
.o· · · · . . · · · • · · ·· · ·· · ·· · · . .
2
3
Bloek Diagram···· ·· . ....... .... .... . . . . . . . . .... . . .. . . . . . . . . . . . . . . . .... ......
4
Principles of Operation·
.o
0 0
.o .o.o .o ..
5
General Operation Outline· .... ································ ····· ··· ··· ·· ·· ·· ···· ····· ······ ··· ······ ··· ·· ·· ········· ···· ··· ·· ····· ····· 7
Alignment/Adjustment· ···· ··· ····· ······· ········ ····· ····· ····· ······ ····· ··· ········· ·· ········· ···· ·· ···· ····· ········ ···· ·· ···· ··· ·· ·
Reception Check·· ·· ···· ··· ······ ···· ··· ··· ·· ······· ··· ··· ······ ··· ·· ··· ·· ······ ·· ··· ······ ··· ··· ···· ········· ······ ······· ···· ··· ····· ·· ..
Memory Check·· ···· ···· ··········· ········· ··· .
Troubleshooting····· ·· ··· ········· ····· ··· ············ ········ ············· ······················· ····· ··· ······· ············· .
Wiring Diagram· ··· ······· ··· .
Jack PCB (Top View)'·' .
Jack PCB (Bottom View)·· ···· ······ ·· ··· ···· ··· ··· ······· ···· ····· ··· ····· ··· ·· ····· ····· ······ ···· ······ ········ ····· ···· ··· ·········
Linear PCB (Top View) ··· ···· ··· ··· ····· ····· ·· ····· ··· ····· ······ ··· ·· .
Linear PCB (Bottom View)··· ······ ···· ············· ····· ··· ··· ····· ····· ··· ······· ··· ·· ··· ···· ·· ······ ········ ···· ··· ·················
Logic PCB
(Top
View) ··· ········ ······· ···· ····· ··· ······ ······ ····· ·· .
Logic
PCB (Bottom View) ··· ······· ····· ·· ········ ····· ···· ····· .
Elect rical Parts List· ····· '. ' .
Mechanical Parts List ·· .
Disassembly Dlagram/Exploded View·········· ····· ········· ·· ···· ······· ··· ····· ··· ················· ········ ····· ····· ··· ····· ·....
Semiconductor Lead Identlficatlon and IC Circuit Diagram .. ······· .
9
16
17
18
20
21
22
23
25
27
29
31
44
45
46
Microprocessor (IC1) Port Format·· ······ ················ ······· ···· ····· ······· ···· ······· ······ ··· ·········· ······· ······ ······ ···· 54
Appendix' .
55
Schematic Diagram
(Linear Section) ··················· ·· ·········· ······· ·· ·· ·· ·· .
56
Schematic Diagram (Logic Section)·· ··· ········ ········ ····· ·············· ······ .
2
58