CONTENTS
Page
Specifications 3
Block Diagram 5
Principles
of
Operatien 6
General Operation Outline 7
Alignment .............................................
..
9
Reception Check .
...
__
__
.19
Memory
Check 20
Troubleshooting
21
Linear PCB (Top and
Bottom
Views) 24
PLL PCB (Top and Bottom Views) 26
Logic &Display
PCB
(Top and Bottom Views) 28
Keyboard PCB, Headphone
Jack
PCB (Top
and
Bottom
Views) " 30
Wiring Diagram
31
Electrical Pans List ,.........................................
..
32
DisassemblyIExploded View , , 58
Exploded View Parts List 59
Semiconductor
Lead
Identification and IC Circuit Diagram ,
..
60
Microprocessor (IC-501) Pin Allocation
..
".,
,
71
Appendix.
, . , , . , . , , . , , . . . . . . . . . . . . . . . . . . . . . . . . .
..
73
Schematic Diagram ............................................................
..
75
PRODUCT SAFETY NOTICE
Many
electrical and mechanical parts in
th
is chassis have special cnaracterisncs. These
characteristics often pass unnoticed and
the
protection afforded
by
them
cannot necessarily
be obtained by using replacement
components
rated for higher voltage, etc. Replacement
parts that have these special safety characteristics are identified in
th
is manual and its
supplements; electrical components having
such
features are identified
by
a
.r"
in the schematic
diagram
and the parts list.
Before replaclng
any
of
these components, read
the
palts
list in this rnanual carefully. The use
of
substitute replacement
palts
that
do
not
have
the
same safety characteristics as specifled in
the
palts
list may create shock, fire
or
other
hazards.
-2-
