A2
■
Parts description and reading in schematic diagram
1. The parts specification of resistors, capacitors and
coils are expressed in designated code. Please check
the parts description by the following code table.
2. Some of transistors and diodes are indicated in mark
for the substitution of parts name. Please check the
parts name by the following code table.
3. Voltages and waveforms were taken with a video color
bar signal(1Vp-p at 75 ohms terminated) and controls
to normal.
4. Voltages were taken with a high-impedance digital
voltmeter.
Example 2000 K K
1000 BG
Characteristic
Example
160
E M 10
Capacitance value
Tolerance
Type
Rated voltage
Excepting electric capacitors, all
capacitance values of less than 1
are expressed in
μ
F and more
than 1 are in pF.
Example L2
C1 4R7 K
N
Tolerance
Inductance value
Manufacture code
Unique code
Mark
Material
E
Electrolytic
P
Electrolytic (non-polarized)
C
Ceramic (temperature compensation)
K
Ceramic
F
Polyester
N
Polypropylene
M
Metalized polypropylene
H
Metalized polypromylar
B
Ceramic (semiconductor)
G
Metalized polyestel
Y
Composite film
S
Styrol
T
Tantalum oxide solid electrolytic
U
Organic semiconductive electrolyte
D
Electric double layer electrolytic
Mark
Tolerance
A
not specified
B
±
0.1
C
±
0.25
D
±
0.5
F
±
1
G
±
2
E
±
2.5
H
±
3
J
±
5
K
±
10
M
±
20
N
±
30
P
+100
-0
Q
+30
-10
T
+50
-10
U
+75
-10
V
+20
-10
W
+100
-10
X
+40
-20
Y
+150
-10
Z
+80
-20
Mark
Tolerance (nH)
Mark
Tolerance (%)
C
±
0.25
G
±
2
D
±
0.5
J
±
5
S
±
0.3
K
±
10
A
±
0.2
L
±
15
M
±
20
Coil Reading
Capacitor Reading
Example 1/2 D J
10K B
Example
6
W K
8.2
Example 1/2
C K
1M
Resistor Reading
Characteristic
Z (Carbon fuse)
B (Non-burnable)
Resistance value
Tolerance (see below table)
Material (see below table)
Rated wattage (W)
K indicates in K
Ω
M indicates in M
Ω
Note: Resistor which is indicated with resistance value only are
1/6W carbon resistor. Resistor which is indicated with materi-
al, tolerance and value are 1/4W rated wattage.
Mark Material
D
Carbon
N
Metal film
S
Oxide metal film
C
Solid
G
Metal glaze
W
Wire wounding or cement
H
Ceramic
F
Fusible
Mark
Tolerance
A
±
0.05
B
±
0.1
C
±
0.25
D
±
0.5
F
±
1
G
±
2
J
±
5
K
±
10
M
±
20
P
+5
-15
Z
used in 0 ohm
Tolerance table
Material table
Material table
Mark Type number
R
1S2076A,1S2473,1N4148
AA
1S2076A,1S2473,1SS133,1N4148
Diode
Mark
Type number
--
2SC536
2SC945A
2SC1815
2SC1740S
AD
NF, NG
PA, QA
Y, GR
Q, R, S
AE
NF, NG
PA, QA, RA
O, Y, GR
Q, R, S
Transistor
(1) NPN type
Diode/Transistor Type Reading
Mark
Type number
--
2SA608
2SA564A
2SA1015
2SA933S
AB
NF
R
Y, GR
R
AC
NF
Q, R
O, Y, GR
Q, R
(2) PNP type
Mark
Type number
--
2SA1179/N
2SA1037K
2SA1037AK
2SC2812/N
2SC2412K
AJ
M6, M7
R, S
R, S
AH
L6, L7
R, S
(3) Chip type
Tolerance table
±
0.25
±
0.5
2
25
G
J
±
±
2
5
J
AH
6
L6
1. The
coils
the p
e part
s are e
parts
s
spec
press
ficatio
d i
n of
desig
th
resis
nated
ll
ors,
od
apac
Plea
ors
ch
nd
eck
Exa
g
ading
B
r Re
10K
sisto
D J
Re
eria
riall tabl
Tolerance ta
