Chapter 5. Circuit Description; Notes On Schematic Diagram; Types Of Transistor - Sharp HR-MB3 Service Manual

HR-MB3
Audio CHAPTER 5. E Market HR-MB3 Service Manual HR-MB3
CIRCUIT DESCRIPTION

[1] 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 resis-
tor. Besides, the one with "Fusible" is a fuse type.
REF. NO DESCRIPTION
SW300 HOLD
SW301 RETURN/POWER OFF
SW302 MENU/POWER ON
SW303 FUNCTION

[2] Types of transistor

POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
B
(G)
(3)
TOP
VIEW
E
(S)
(1)
RN1104
RN2104
MCH3405
TOP VIEW
1SS400
RB520530
RB521S30
VDZS33B
VDZS8R2B
• 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 sym-
bol 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
• Schematic diagram and Wiring Side of P.W.Board for this model are
subject to change for improvement without prior notice.
REF. NO
SW304 SKIP DOWN/SCROLL LEFT/REVIEW
SW305 VOLUME UP/SCROLL UP
SW306 VOLUME DOWN/SCROLL DOWN
SW307 SKIP UP/SCROLLRIGHT/CUE
SW401 BATTERY/CUT
C
(D)
(2)
5 – 1
DESCRIPTION
TOP VIEW
KDS121 E
TOP VIEW
FS1J3TP
RB106M3
POSITION
ON—OFF
ON—OFF
ON—OFF
ON—OFF
ON—OFF