Notes On Schematic Diagram; Types Of Transistor And Diode - Sharp MD-MT270HS/BK Service Manual

MD-MT270H
• 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 micro-micro-farad and the unit of the
capacitor without such a symbol is microfarad. As to electro-
lytic capacitor, the expression "capacitance/withstand volt-
age" is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
REF. NO DESCRIPTION
SW401 EJECT
SW403 LID OPEN
SW451 BASS
SW452 VOL+
SW453 VOL–
SW454 SKIP DOWN
B
(G)
(3)
E
(S)
1
2SB709 A
2SD601 AR
3LN01 S
DTC123 TKA
MCH3409
UN5213

NOTES ON SCHEMATIC DIAGRAM

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
TOP C
(D)
VIEW
(2)
S
TOP
VIEW
G D
2SJ645
Figure 22 TYPES OF TRANSISTOR AND DIODE
• 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 "
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
REF. NO
SW455 SKIP UP
SW456 MENU/ENTER
SW457 STOP
SW458 PLAY
SW459 REC
SW601 DISC PROTECT
TOP VIEW
MA132WK
TOP VIEW
HRB0103 B
– 22 –
" ( ) are important for
DESCRIPTION POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF
TOP VIEW
F05J2L
TOP VIEW
SBE803