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Sony WALKMAN WMD-DT1 - Integrated Circuit (IC) Pin Functions; IC401 Playback Equalizer Amplifier Pinout

Sony WALKMAN WMD-DT1
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SECTION
5
IC
PIN
FUNCTIONS
1C401
PLAYBACK
EQUALIZER
AMPLIFIER
(CXA1354Q)
HA
A
Vcc
|
-
|
Power
supply
pin
of
the
Ach
head
amplifier
and
2nd
amplifier.
2
MP
HIGH
2
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
high
band
peak
amount
(For
the
Metal-Powder
tape)
;
MP
HIGH
1
|
-
|
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
high
band
characteristics
(For
MP)
4
MP
PHASE
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
phase
characteristics
(For
MP)
5
MP
LOW
|
-
|
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
low
band
characteristics
(For
MP)
PB
GND
=
GND
pin
of
parts
other
than
the
head
amplifier,
2nd
amplifier,
and
Limiter
7
EQ
OUT
Oe
al
PCM
EQ
output
pin
LIM
IN
lor
|
Limiter
input
pin
SWP OUT
203)
Switching
pulse
output
pin
10
LIM
GND
Limiter
GND
pin
RFDT
OUT
|
0
|
Limiter
output
pin
LIM
Vcc
Limiter
power
supply
pin
INT
TC
1
PLCK
IN
ll
12
13
Connects
the
integrating
capacitor
of
the
integrator.
4
Signal
input
pin
of
the
integrator
Output
pin
of
the
regulator
with
decoupling
capacitor
Pin
which
switches
the
two
EQ
characteristics
(For
MP
and
Ba-Fe).
Sets
the
EQ
characteristics
fixed
by
the
external
resistor
of
Pins
@)
to@
when
low
and
Pins
@
to
@
when
high
1
1
TAPE
SW
BF
HIGH
2
BF
HIGH
1
BF
PHASE
5
6
17
18
20
BF
LOW
3
5
6
8
0
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
high
band
peak
amount
(For
Ba-Fe)
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
high
band
characteristics
(For
Ba-Fe)
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
phase
characteristics
(For
Ba-Fe)
Connects
the
resistor
or
current
source
for
fixing
the
PCM
EQ
low
band
characteristics
(For
Ba-Fe)
Power
supply
pins
of
other
than
the
head
amplifier,
2nd
amplifier
and
Limiter
EQ
input
pin
pee
a
7
a
za
[BrPHASE
|_|
oan
iieeeld
|
a
|
|swour
sd
co
|
Switcher
amplifier
output
pin
ial
|
o
|
i
eo
ie
ea
|
0
|
2
24
HA
B
Vcc
Power
supply
pins
of
the
Bch
head
amplifier
and
2nd
amplifier
HA
B
OUT
HA
B
GND
HA
B
PC
Output
pin
of
the
Bch
head
amplifier
2
GND
pin
of
the
Bch
head
amplifier
and
2nd
amplifier
Pin
which
connects
the
emitter
pass
capacitor
of
the
first
emitter-earthed
transistor
of
the
Bch
head
amplifier
Input
pin
of
the
Bch
head
amplifier
HA
BIN
HA
AIN
HA
A
PC
HA
AGND
2
2
2
2
2
Input
pin
of
the
Ach
head
amplifier
Pin
which
connects
the
emitter
pass
capacitor
of
the
first
emittér-éarthed
transistor
of
the
Ach
head
3
amplifier
2
7
9
31
32
GND
pin
of
the
Ach
head
amplifier
and
2nd
amplifier
Output
pin
of
the
Ach
head
amplifier
an?
bee

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