SHARP MDS301HY
Manual de Servicio

MD-S301H

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 electrolytic capacitor, the expression �capacitance/withstand voltage� 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 chassis 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.

REF. NO SW401 SW451 SW452 SW453 SW454 SW455 SW901 HOLD PLAY/FF REW STOP

DESCRIPTION

POSITION OFF�ON OFF�ON OFF�ON OFF�ON OFF�ON OFF�ON OFF�ON

VOLUME DOWN VOLUME UP DISC IN

TOP VIEW
B (G) (3) E (S) 1

TOP VIEW FRONT VIEW BEC 2SD1950

TOP VIEW

C (D) (2)

2SA17457 2SA1745 2SC4738 GR 2SJ305 DTC144 EE NDS355 AN NDS335 N

F1J2F

015Z5.1Y RB521S30 HZU2BLL

TOP VIEW

TOP VIEW

TOP VIEW

TOP VIEW

1SS372 CL200HRC

RB491D SB10015C

1SS361 1SS393

Figure 21 TYPES OF TRANSISTOR AND LED

� 21 �