Parts Description And Reading In Schematic Diagram - Sanyo PLV-Z3000 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.
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 volt-
meter.
Capacitor Reading
Example 2000 K K 1000 BG
Example 160 E M 10
Material table
●
Mark Material
E Electrolytic
P Electrolytic (non-polarized)
Ceramic (temperature
C
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 L2 C1 4R7 K
Mark Tolerance (nH)
C ±0.25
D ±0.5
S ±0.3
A ±0.2
A2
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
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
Example 1/2 D J 10K B
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 material, toler-
ance 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
-0
●
(1) NPN type
Mark
-- 2SC536
AD NF, NG
AE NF, NG
(2) PNP type
Mark
-- 2SA608
AB NF
AC NF
(3) Chip type
Mark
-- 2SA1179N
AJ M6, M7
AH
Resistor Reading
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
A
B
C
D
F
G
J
K
M
P
Z
Type number
Type number
2SC945A 2SC1815 2SC1740S
PA, QA Y, GR Q, R, S
PA, QA, RA O, Y, GR Q, R, S
Type number
2SA564A 2SA1015 2SA933S
R Y, GR R
Q, R O, Y, GR Q, R
Type number
2SA1037K 2SA1037AK 2SC2812/N
R, S R, S
L6, L7
ME4-Z300000
Tolerance
±0.05
±0.1
±0.25
±0.5
±1
±2
±5
±10
±20
+5 -15
used in 0 ohm
2SC2412K
R, S