Parts Description And Reading In Schematic Diagram - Sanyo PLV-WF20 Service Manual

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.
. 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.
capacitor reading
Example 000 K K 1000 BG
Example 160 E M 10
Material table
●
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
coil reading
Example L C1 4R7 K N
Mark Tolerance (nH)
C ±0.25
D ±0.5
S ±0.3
A ±0.2
A
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 ±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
Tolerance
Inductance value
Manufacture code
Unique code
Mark Tolerance (%)
G ±2
J ±5
K ±10
L ±15
M ±20
resistor reading
Example 1/ D J 10K B
Example 6 W K 8.
Example 1/ C K 1M
Note: Resistor which is indicated with resistance value only are
1/6W carbon resistor. Resistor which is indicated with mate-
rial, 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
R 1S2076A,1S2473,1N4148
AA 1S2076A,1S2473,1SS133,1N4148
transistor
●
(1) NPN type
Mark
-- 2SC536 2SC945A
AD NF, NG PA, QA
AE NF, NG PA, QA, RA
() PNP type
Mark
-- 2SA608 2SA564A
AB NF R
AC NF Q, R
(3) Chip type
Mark
-- 2SA1179N 2SA1037K
AJ M6, M7 R, S
AH
KY3-WF2000
Characteristic
Z (Carbon fuse)
B (Non-burnable)
K indicates in KW
M indicate in MW
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 -15
Z used in 0 ohm
Type number
Type number
2SC1815 2SC1740S
Y, GR Q, R, S
O, Y, GR Q, R, S
Type number
2SA1015 2SA933S
Y, GR R
O, Y, GR Q, R
Type number
2SA1037AK 2SC2812/N 2SC2412K
R, S
L6, L7 R, S