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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
colour bar signal(1Vp-p at 75 ohms terminated) and
controls to normal.
4. Voltages were taken with a high-impedance digital
voltmetre.
Capacitor Reading
Example 2000 K K 1000 BG
Example 160
E M 10
Material table
Mark Material
E
Electrolytic
P
Electrolytic (non-Polarised)
C
Ceramic (temperature compensation)
K
Ceramic
F
Polyester
N
Polypropylene
M
Metalised polypropylene
H
Metalised polypromylar
B
Ceramic (semiconductor)
G
Metalised polyester
Y
Composite film
S
Styrol
T
Tantalum oxide solid electrolytic
U
Organic semiconductive electrolyte
D
Electric double layer electrolytic
Coil Reading
Example
L2
C1 4R7 K
Mark
Tolerance (nH)
C
±0.25
D
±0.5
S
±0.3
A
±0.2
C2KVV
Characteristic
Capacitance value
Excepting electric capacitors, all
capacitance values of less than 1
are expressed in µF and more
than 1 are in pF.
Tolerance
Type
Rated voltage
Tolerance table
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
± 0
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
N
Tolerance
Inductance value
Manufacture code
Unique code
Mark
Tolerance (%)
G
±2
J
±5
K
±10
L
±15
M
±20
Resistor Reading
Example 1/2 D J
Example
6
W K 8.2
Example 1/2 C K 1M
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.
Material table
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
Diode/Transistor Type Reading
Diode
Mark Type number
--
1S1555,1S2473,1S2076,1SS133,DS442,1SS176
K
1S1555,1S2473,1S2076,DS442
L
1S1555,1S2076A,1S2471
M
1SS133,1SS176,GMA01
N
1S1555,1S2473,1S2076,1SS133,DS442,1SS176,1N4148
P
1S1555,1S2076A,1S2471,1N4148
R
1S1555,1S2076,1S2473,DS442,1N4148
AA
1S1555,1S2076,1S2473,1SS133,DS442,1SS176,1N4148,GMA01
Transistor (NPN type)
Mark
Type number
--
2SC536
2SC945A 2SC1815 2SC1740 2SC1740S KSC945C
A
E, F, G
P, Q, R
B
E, F, G
P, Q, R
D
F, G
P, Q
F
F, G
P
H
F, G
P, Q
I
E, F, G
P, Q, R
G
F, G
P
AD
F, G
Q, R
AE
E, F, G
Q, R
Transistor (PNP type)
Mark
Type number
--
2SA608
2SA564A 2SA1015
Y
E, F
Q, R
W
F
R
V
E, F
Q, R
U
F
R
Z
E, F
Q, R
AB
F
R
AE
E, F
Q, R
-20-
10K B
Characteristic
Z (Carbon fuse)
B (Non-burnable)
K indicates in KΩ
M indicate in MΩ
Resistance value
Tolerance (see below table)
Material (see below table)
Rated wattage (W)
Tolerance table
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
Z
used in 0 ohm
O, Y, G
Q, R, S
Q, R, S
O, Y, G
Q, R, S
Y, G
Q, R, S
G
R, S
Y, G
Q, R, S
O, Y, G
Q, R, S
G
R, S
Y, GR
Q, R, S
O, Y, GR
Q, R, S
2SA933
2SA933S KSA733C
O, Y, G
Q, R
Y, G
R
O, Y, G
Q, R
Y, G
R
O, Y, G
Q, R
Q, R
Y
Q, R
O, Y
R
-15
Y, G
Y, G
G
Y, G
G
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