Sharp MD-S301 - Notes on Schematic Diagram

MD-S301/S301W
– 30 –
NOTES ON SCHEMATIC DIAGRAM
• 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
• 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 “ ” ( ) are important for
maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.
• The wiring diagram and the PWB drawing may be changed
to refect improvements in the design without prior notice.
They may differ a little the unit you have.
Figure 30 TYPES OF TRANSISTOR AND LED
POSITION
REF. NO
DESCRIPTION
SW401 HOLD OFF—ON
SW451 PLAY/FF OFF—ON
SW452 REW OFF—ON
SW453 STOP OFF—ON
SW454 VOLUME DOWN OFF—ON
SW455 VOLUME UP OFF—ON
SW901 DISC IN OFF—ON
!
CL200HRC
1SS372
015Z5.1Y
RB521S30
HZU2BLL
2SD19502SA17457
2SA1745
2SC4738 GR
2SJ305
DTC144 EE
NDS355 AN
NDS335 N
TOP
VIEW
TOP VIEW
TOP VIEW
RB491D
SB10015C
TOP VIEW
TOP VIEW
TOP VIEW
FRONT
VIEW
B
(G)
(3)
E
(S)
1
C
(D)
(2)
1SS361
1SS393
TOP VIEW
F1J2F
BEC