Notes On Schematic Diagram; Types Of Transistor And Led - Sharp SD-AT50 Service Manual

SD-AT50
• Resistor:
To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with "Fusible" is a fuse
type.
• Capacitor:
To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression "capacitance/withstand voltage"
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type
REF. NO DESCRIPTION
SW1 POWER
SW2 VOLUME UP
SW3 VOLUME DOWN
SW4 DIGITAL/ANALOG
SW5 FUNCTION
FRONT
VIEW
E C B
(S)(G)(D)
(1)(2)(3)
2SD1616 A
2SK246 GR
KTA1266 GR
KTA1271 Y
KTA1273 Y
KTC2874 B
KTC3199 GR
KTC3203 Y
TOP VIEW
KDS120E
KDS121E
KDS226

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF

TYPES OF TRANSISTOR AND LED

B
(3)
E
(1)
KTA1504 GR
KTC3205 Y
KTC3875 GR
KRA106 M
KRA106 S
KRA107 M
KRC102 M KRC102 S
KRC104 M KRC104 S
KRC106 M KRC107 S
KRC107 M
FRONT
VIEW
AC
D5SB60
• Schematic diagram and Wiring Side of P.W.Board for this
model are subject to change for improvement without prior
notice.
• The indicated voltage in each section is the one measured
by Digital Multimeter between such a section and the chas-
sis with no signal given.
• Parts marked with " 1 " (
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
TOP
C
VIEW (2)
DS1SS133
D1NL20U
AC
– 10 –
TOP VIEW TOP VIEW
1N4004S
KDS160
SFPW56
FRONT
VIEW
3105T1
3105VGT
31URT21
SEL2E10C
SELU2E10
) are important for