HR-MB3
5 – 1
Audio
HR-MB3
Service Manual
HR-MB3
Market
E
CHAPTER 5.
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.
• 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.
[2] Types of transistor
REF. NO
DESCRIPTION
POSITION
SW300
HOLD
ON—OFF
SW301
RETURN/POWER OFF
ON—OFF
SW302
MENU/POWER ON
ON—OFF
SW303
FUNCTION
ON—OFF
SW304
SKIP DOWN/SCROLL LEFT/REVIEW
ON—OFF
SW305
VOLUME UP/SCROLL UP
ON—OFF
SW306
VOLUME DOWN/SCROLL DOWN
ON—OFF
SW307
SKIP UP/SCROLLRIGHT/CUE
ON—OFF
SW401
BATTERY/CUT
ON—OFF
REF. NO
DESCRIPTION
POSITION
TOP VIEW
TOP VIEW
TOP VIEW
1SS400
RB520530
RB521S30
VDZS33B
VDZS8R2B
FS1J3TP
RB106M3
RN1104
RN2104
MCH3405
KDS121 E
B
(G)
(3)
E
(S)
(1)
C
(D)
(2)
TOP
VIEW
Summary of Contents for HR-MB3
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