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Onkyo TA-2130 Service Manual

Onkyo TA-2130
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TA-2130
MICROCOMPUTER
(LM6405L-1994)
In
the
microcomputer,
the
operating
voltage
is
high
with
the
NMOS
type
LM6405L
using
Vpp
=
6V.
The
clock
uses
a
condenser/resistor
oscillator
and
is
designed
for
a
frequency
of
170KHz,
(Frequency
measurement
can
be
made
by
connec-
tion
through
a
LOOKQ
~
330KQ2
to
pin
No.
1.)
Port
.
XTAL
Connected
to
resistor
of
oscillator
for
clock
use
BIAS
OUT
Output
port
for
turning
bias
oscillator
ON/OFF:
Oscillation
with
0
level
LINE
MUTE
REC.
REC.
MUTE
Output
port
for
line
muting:
Muting
with
0
level
Output
port
for
recording
muting:
Muting
with
0
level
CASSETTE
IN
Input
for
cassette
loading
detection:
Cassette
loading
with
0
level
ROTATION
SENSOR
jj
Pulse
input
rotation
detection
System
reset
for
microcomputer
use
Input
for
automatic
detection
of
chrome
tape:
Chrome
use
hole
detection
with
1
level
METAL
Input
for
automatic
detection
of
metal
tape:
Metal
use
hole
detection
with
|
level
10
PLAY
SWITCH
Input
for
PLAY
position
detection:
PLAY
position
with
0
level
J
REC.
INH
Lug
detection
input
for
recording
prevention:
Disable
with
1
level
12
REEL
FF
Output
for
reel
motor
rotation
in
fast
forward
direction:
Rotation
with
1
level
<form
Reel
motor
rotation
selection:
Slow
with
1
Fast
with
0
Ps
RvB
nmin
ties
PAUSE
LED
LED
output
for
PAUSE
indication:
Lights
with
0
ci
feet
ps
[secre
nT
LED
output
for
REC
indication:
Lights
with
0
Output
for
solenoid
pull
in:
Pull
in
with
0
Output
for
solenoid
pull
in
hold
(ow
power):
Pull
in
hold
with
0
Input
for
microcomputer
chip
inspection
(Normally
connected
to
Vgs)
Ground
terminal
70
ps/120
us
For
input
to
pins
8,
9,
output
for
play
back
equalizer
selection
a
NORMAL
For
input
to
pins
8,
9,
output
for
record
equalizer
selection
(NORMAL)
=
HIGH
For
input
to
pins
8,
9,
output
for
record
equalizer
selection
(HIGH)
METAL
For
input
to
pins
8,
9,
output
for
record
equalizer
selection
(METAL)
26
SINGLE
SIG,
Input
for
recording
signal
detection
for
single
repeat
when
in
low
speed
27
AMCS
SIG,
Input
for
recording
signal
detection
for
AMCS
use
when
in
high
speed
REPEAT
OFF/ON
Input
for
repeat
operation
ON/OFF:
Operates
with
0
——
SINGLE/FULL
Selection
of
SINGLE/FULL
operation:
Full
repeat
with
0

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Onkyo TA-2130 Specifications

General IconGeneral
BrandOnkyo
ModelTA-2130
CategoryTape Deck
LanguageEnglish

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