QT-120H (serv.man2) - Sharp Audio Service Manual (repair manual). Page 5

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•  Resistor:

To differentiate the units of resistors, The 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 an ohm resistor. The resistor designated “Fusible” is a
fuse type resistor.

• 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 symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH),(RH),(UJ): Temperature compensation
(ML): Mylar type
(S): Styrol 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.

• Schematic diagram and Wiring Side of P.W. Board for this

model are subject to change for improvement without prior
notice.

• 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.

SW4

BEAT CANCEL

A

SW101

BAND SELECTOR

FM

SW201

RECORD/PLAYBACK

PLAY

SW301

FUNCTION SELECTOR

TAPE

SW401

TAPE MAIN

OFF

ZQT8050 D

9014 C

VIEW

FRONT

E  B  C

VR101

MAIN PWB

L108

L107

L105

L104

L103

L102

IC101

IC102

T102

TC1

TC3

TC4

TC2

T101

T103

LW

MW

1

1

21

13

LW
BAND COVERAGE

fH
fL

LW TRACKING fH

MW BAND COVERAGE fL

MW TRACKING fL

LW TRACKING fL

FM TRACKING fH

fL

MW TRACKING fH

MW BAND COVERAGE fH

FM BAND
COVERAGE

fH
fL

FM DETECTION

VCO

AM IF

FM IF

4
3
2
1

CNP201

9

T201

BIAS OSCILLATION

TC103

TC102