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SCHEMATIC DIAGRAMS / CBA'S AND TEST POINTS
Standard Notes
WARNING
Many electrical and mechanical parts in this chassis
have special characteristics. These characteristics
often pass unnoticed and the protection afforded by
them cannot necessarily be obtained by using
replacement components rated for higher voltage,
wattage, etc. Replacement parts that have these spe-
cial safety characteristics are identified in this manual
and its supplements; electrical components having
such features are identified by the mark " ! " in the
schematic diagram and the parts list. Before replacing
any of these components, read the parts list in this
manual carefully. The use of substitute replacement
parts that do not have the same safety characteristics
as specified in the parts list may create shock, fire, or
other hazards.
Capacitor Temperature Markings
Capacity
Mark
change rate
±
(B)
10%
±
(F)
30 - 80%
±
(SR)
15%
±
(Y)
22.5%
Capacitors and transistors are represented by the fol-
lowing symbols.
< PCB Symbols >
(Top View) (Bottom View)
+
(Bottom View)
Transistor or Digital Transistor
E
C
B
(Top View)
NPN Transistor
E C B
(Top View)
NPN Digital Transistor
E C B
Standard
Temperature
temperature
range
20°C
-25~+85°C
20°C
–25~+85°C
20°C
–25~+85°C
20°C
–25~+85°C
Electrolytic Capacitor
(Top View)
E C B
(Top View)
E C B
Notes:
1. Do not use the part number shown on these draw-
ings for ordering.
shown in the parts list, and may be slightly different
or amended since these drawings were prepared.
2. To maintain original function and reliability of
repaired units, use only original replacement parts
which are listed with their part numbers in the parts
list section of the service manual.
3. How to read converged lines.
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
(1).
"1-D3" means that line number "1" goes
to the line number "1" of the area "D3".
(2).
"1-B1" means that line number "1" goes
to the line number "1" of the area "B1".
4. All resistance values are indicated in ohms
3
(K=10
, M=10
5. Resistor wattages are 1/4W or 1/6W unless other-
wise specified.
6. All capacitance values are indicated in µF
-6
µF).
(P=10
7. All voltages are DC voltages unless otherwise
specified.
8. Voltage indications for PLAY and REC modes on
the schematics are as shown below.
(Unit: Volt)
The same voltage for
both PLAY & REC modes.
< Schematic Diagram Symbols >
PNP Transistor
PNP Digital
Transistor
1-13-1
The correct part number is
3
AREA D3
AREA B1
2
1-D3
1
A
B
6
).
PLAY mode
1
2
3
REC mode
5.0
5.0
(2.5)
Indicates that the voltage
is not consistent here.
Digital Transistor
1-B1
C
D
D6P_PC_SC
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