Akai UCU 2 Service Manual

Page 1

FM AM STEREO TUNER

MO DEL U c " K 2
STEREO INTEGRATED AMPLIFIER

MODEL UC-U 2
MODEL UC-M2

STEREO CASSETTE DECK

Page 2

FM AM STEREO TUNER

MODEL [JG-[(2

STEREO INTEGRATED AMPLIFIER

MODEL UC-U2
STEREO CA SSETTE DECK
MODEL UC-MZ
ALSO APPLICABLE TO BLACK PANEL MODEL

TAB LE OF CONTENTS

SECTION 1 MODEL UC-KZ ........................ 3
SECTION 2 MODEL UC-U2 ........................ [5
SECTION 3 MODEL UC-M2 ........................ 29
SECTION 4 PARTS LIST .......................... 47

SECTION 5 SCHEMATIC DIAGRAM ................ 78

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V. VOLTAGE CONVERSION

vimiels 2:} Canada, USA Augrmlia
ire rim eqiizpped with this familitv _
sci to 110V: lZOV, 220V m 240\ I: zequned l
machine is preset at the factory according [Li desliiiat ;
HoweVer. if voltage change 18 necessary: this can we
accomplished by a qualified service personnel as iollows
. Disconnect power cord
V Loosen holdingscrews and remme top panel.
With a flat bladed screwdiivei rotate the seleetm:
lucated on the left hand side (Puwer Switch Sidei
until the arrow points to the desired mltage,

m w w

i'ersmn ill? Model)

0

$5

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2. LEVEL METER ADJUSTMENT

Fig. 7 Level Meter Adjustment

AC VOLTMETER
Lch R ch

AUDIO UC -U2
OSCILLATOR

I

<5

I

i?

(tKHzl RL = (30th

Fig. 8 Instrument Connections

Feeding in l kllz from audio oscillator, adjust the
VOLUME Knob until the voltage at both ends of RL
(8 ohms) is 630 mV.

Also_ adjust R302 (1 kB belt) and R252 (1 kB,
R-Cltl In the p0ltHWl10K} the 0.05 watts indicator will
start lighting up.

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