Teac A-X75 User manual

TEAC.
DC Integrated Stereo Amplifier
aaa eI NNT OS PUREST OE OE NE AE ER A Te a NR ee
MOTES
In this manual, 0 dB is referenced to 1V.
. A Parts marked with this sign are safety critical components. They
must always be replaced with identical components - refer to the
appropriate parts list. and ensure exact replacements.
. PC boards shown are viewed from foil side.

X75 |
——<—$ a!
1 SPECIFICATIONS
Type OC Integrated Stereo Amplifier
Rated Output Power
{Both Channels, 8 ohms)
80W + BOW (TkHz, 0.03% T.H.D.}
75W + 75W (20Hz ~ 20kHz,.0.05% T.H.D.)
Total Harmonic Distortion
0.05% (20Hz ~ 20kHz, at TOW 750 Output Power)
Output Bandwidth he
IHF, ~3dB, 10Hz~ 50kHz
Frequency Response
TUNER, CD/AUX, TAPE 1, 2, to SP out 5Hz
40kHz +0, -2d8
PHONO
to
REC
OUT,
20H2z~20kHz+0.
5dB
(RIAA)
Input
Sensitivity
PHONO MC 0.22,V/100 cine oe
“PHONO MM 2.2mV/47k ohms
TUNER, CO/AUX, TAPE 1, 2, 115mV/47k ohms
Rated Output Voltage/Impedance
TAPE REC 1.2. 100mV/47k ohms
_ 2 ADJUSTMENT LOCATION:
1-1 DC BALANCE CHECK
1. Connect the DC voltmeter to SPEAKERS ‘A terminal.
2. Depress POWER switch to ON.
3. Confirm the DC voltmeter indication within 0 V +20mV.
1-2 IDLING CURRENT CHECK
1. Connect the DC voltmeter between P9 to P10 and P11 to P12.
2. Confirm the DC voltmeter indication within 15mV when POWER is: |
ON after 10 seconds.
3. If the DC voltmeter indicates over 25mV adjust the TVR 601 for LEFT
channel or adjust the TVR 701 for RIGHT channel on the MAIN PCB.
4. After. the above procedures, allow. 10 minites for the pnpalet to
warm up completely. :
Signal-to-Noise Ratio
{IHF
A
Network,
short
circuit)
PHONO MC 654B
PHONO MM 75¢B
TUNER,
CD/AUX,
TAPE
1,
2,
94dB
- Tone Control
Bass +12dB, 100Hz
Mid. +6dB, kHz
Treble + 12dB, 10kHz
Low Filter 100Hz, ~ 5B -
High Filter 10kHz, -6dB
Muting - 20dB
Power Requirements
100/120/220/240 V AC 50/60 Hz, 180W (General Export Model)
220V AC 50Hz, 400W {Europe Model}
240V AC SOHz, 510W (U.K./Aus. Model)
Dimensions (WxHxD). ses
435x120 x 295mm 7H x 4%" “x11%)
Weight 11.5kg (25.3lbs) net
* Improvements may result in specification or feature changes without
_ hotice. .
1-3 REALY OPERATION CHECK
1.
Apply
1
kH2z/150mvV.(-
16.548)
to
the
CD/AUX
terminal.
2.
Adjust
the
VOLUME
contro!
so
that.
output
Voltage
is
10V
at
the
SPEAKER
terminal.
3..
Shortcircuit
the
SPEAKER
terminals
between
+
and
’—
so
o
that
the
relay
RY
1
break
immediately.

—
PERE — ait s"ant
POWER TRANSFORMER —
Pt
Serr soe se
TONE ?CB
; €
|
SPEAKER SWITCH PCB
“(FOR GENERAL EXPORT MODELS ONLY)
AC VOLTAGE SELECTION
“his
unit
operates
on
110
volts
or
220
volts
AC.
fore
connecting
the
power
cord
to
your
AC
outlet,
make
sure
that
the
setting
position
of
this
switch
matches
your
line
voitage.
If
not,
it
must
be
set
to.
your
voitage
in
accordance
with
the
following
direction.
TVREO1
TVAR701
al -
oo 8
its [oes [nape
MAIN PCB
———FUSE
WL ri
. cD DIRECT PCB
INPUT SELECTOR PCS
3 VOLTAGE CONVERSION
110V 220V
Slide the switch to — Slide the switch to
LEFT position as RIGHT position. as
drawing as below drawing as below
_ AC SELECTOR
|
ele
|
2)

asks
TVR6O1
TVR701
POWER TRANSFORMER
MAIN PCB
FUSE
TONE ?CB8
CD DIRECT PCB
SPEAKER SWITCH PCB
INPUT SELECTOR PCB
3
VOLTAGE
CONVERSION
(FOR GENERAL EXPORT MODELS ONLY)
AC
VOLTAGE
SELECTION
This
unit
operates
on
110
volts
or
220
volts
AC.
110V
220V
fore
connecting
the
power
cord
to
your
AC
outlet,
Slide
the
switch
to
Slide
the
switch
to
make
sure
that
the
setting
position
of
this
switch
LEFT
position
as
RIGHT
position
as
matches
your
line
voltage.
If
not,
it
must
be
set
to
drawing
as
below
drawing
as
below
your
voltage
in
accordance
with
the
following
direction.
AC SELECTOR
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PIN FUNCTION
1. AOUTPUT
2. A-INPUT
3. AHINPUT
4. V-
5. B+ INPUT |.
6. B — INPUT
7.
8.
B OUTPUT
V+

A-X/5 |
4 BLOCK DIAGRAM
PIN FUNCTION
ON ams eyo
. AOUTPUT
. A-INPUT
- AtINPUT
V-
B + INPUT
B — INPUT
B OUTPUT
V+

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6 EXPLODED VIEW A-X75

6 EXPLODED VIEW A-X75

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