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RESISTANCE VALUE CODES
Code
numbers
of
resistors
used
in Pioneer
equipment
are expressed in the following way:—
Code number —————-->
RD % PS 473 J NL
Type of resistor ae
Power rating
Shape (tubuler)
Resistance (code value)
Tolerance
Low-noise marking
Furthermore,
in the list of parts found in the
. Service Manual, the resistance (code value) part of
the above
code number is expressed as O00
or
OOOO.
Resistors included in the Service Manual list of
parts
|
Ex. RD%PSOOO
JNL
When ordering resistor components,
first ascer-
tain the actual resistance
value
from
the circuit
diagram, and then convert it into code no. form
as shown in the following examples.
For further details on
code numbers,
refer to
"Tuning Fork" VOL. 1.
Ex.1
For OOOO
Codes
*
General
resistors
O
oOo
D
O
292
Significant figures
Multiplier (10%)
*
Resistors with fractional values
O
oO
oO
O
OORO
143
Significant figures
Decimal
point
QO
O
R
O
opto
Significant figures
Decimal point
Nominal resistance | Significant figure
Multiplier
| Resistance
(2)
(two figures)
(10X)
value code
5.1
510
5.62
562
10
100
22.5
225
110
110
1k
(1000)
100
1.56k
(1560)
156
10k
(10000)
33.6k
(33600)
112k
(112000)
1M
(1000000,
1.56M
(1560000)
100
336
112
Ex.2
For 000
Codes
*
General
resistors
i]
O
0
Significant figures
Multiplier (10%)
*
Resistors
with fractional
values
oO
QO
0
ORO
Significant figures
Decimal! point
Ex. 2
Nominal resistance | Significant figure
Multiplier
| Resistance
(Q)
(two figures)
(10X)
value code
0.5
1.5
1
22
330
1k
(1000)
5.6k
{5600)
68k
(68000)
820k
(820000)
1M
(1000000)
2.2M
(2200000)
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