Technics SU-8044 Service Manual

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Notes:
1.
2.
© 6
10.
11,
12.
13.
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$1: Input selector switch in ‘‘PHONO” position.
@ TAPE 2 =» @ TAPE 1» @ PHONO ~—» © TUNER —» © Aux
$2. : Rec selector switch in “OFF position.
@ TAPE 2>1 «—» @ TAPE 12 «——» (3) OFF «—» @ PHONO «-» © TUNER <—e»
© Aux
: Loudness switch in “OFF” position.
: High filter switch in “OFF” position.
; Range switch in “X1" position.
: Power switch in “ON” position.
: Voltage adjuster switch in ''240V”’ position.
(240V <= 220V<= 120V 1 10V).
: Speaker switch in "MAIN" position.
Indicated voltage values are the standard values for the unit measured by the OC electronic
circuit tester (high impedance) with the chassis taken as standard. Therefore, there may exist
some errors in the voltage values, depending on the internal impedance of the DC circuit tester.
Standards values ( ) Bright
The
mark
has
been
used
for
the
indication
of
specified
parts
for
an
assurance
of
safety,
but
it
has
been
changed
to
A\
mark.
When
replacing
parts,
be
sure
to
use
parts
with
correct
numbers with reference to the circuit drawing or the repair parts list.
— A (new mark)
To represent transistors, Q is used instead of TR (Ex. TR1 —™ Q1)
grecret Phono signal lines of left channel.
his
schematic
diagram
may
be
modified
at
any
time
with
the
development
of
new
technology.
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10601,
662
(SVIBA6E63)
INPUT
OvOL
TAGE
FL
Comparator
|
1C401,
402
(SVISTKO039N)
Power
Amplifier
1C201 (SVINJM4559DS)
+1N Gpmemoy OU PEREN- OUTPUT aMPraem(7) 204 OUT Tone Amplifier
2SA722, 2SC1815
2SA684NC, 2SA564
28828, 2SC1885

Technics SU-8044 Specifications

General

Input Sensitivity MM	2.5mV
Input Sensitivity Line	150mV
Output Line	150mV
Type	Integrated Stereo Amplifier
Channel Separation MM	60dB (1kHz)