Pioneer A-505R Service Manual

6.
1C
INFORMATION
PD5369A
(FROtfT R
ASSY
: IC601)
•
The
information shown
in the list is
basic information and
•
REMOTE
CONTROL
AMP
MICROCOMPUTER
correspond
exactly
to
that
shown
in
the
schematic
• Pin
Assignment
(Top
view)
diagrams.
•
Pin Function
P53
-
PI7/SRDY
P 16
/CLK’'
PI5/S0UT
PI4/S1N"'
PI 3/T1
Pl2/To^
P11
P 10
"
P27/IN7^
P26/IN6
"
P25/IN5"
P24/IN4
"
P23/IN3
^
P
22
/IN2
^
P2i/INi
P2o/INo
"
Vref
XiN
'
XOUT
*
Vss
[1
E
E
E
E
E
E
E
E
Eo
Ei
El
El
E
E
E3
SR
STB
CLK
DATA
CD-IND
TU-IND
PH-IND
LMND
T1-IND
SPA-IND
SPB-IND
LOU-IND
POW-IND
MUT-IND
DIR-IND
T2-IND
F-MUTE
Vref
XiN
XoUT
Vss
T2
POWER
LOUD
M-CTRL
P-DET
P-CTRL
DIRECT
MUTE
WAKE
UP
FUNC2
FUNGI
V-UP
V-DOWN
RSEL2
RSEL1
NC
BACK UP
R^
SPA
SPB
Vcc
M
0
P52
PO7
POe
PO5
PO
4
PO3
M
—
P4o
^
P33
/CNTR
1
^
P32/CNTR0
^
P3i/INTi
^
P3o/INTo
^
RESET
—
P51 /XCOUT
P5o/Xcin
Vcc
No.
Pin name I/O
Function
m
n
SPEAKER-A
KEY input.
m
RESET
D
Reset pin.
m
P3VINT0
a
BACK UP
detection pin.
interrupt specification.
El
Not
used.
D
REC
selector
input 1
.
n
REC
selector
input
2.
interrupt
specification.
P4o
El
Volume
DOWN
data
output.
P4i 0
Volume UP
data output.
m
P4: I FUNCTION
selector input
1.
Etl P43 I
FUNCTION
selector input
2.
34
POo
I
WAKE UP
input.
Key on
wake
up
specification.
35
POi I
MUTE KEY input.
Key on
wake
up
specification.
36
PO2 I
DIRECT KEY input.
Key on
wake
up
specification.
Eg PO3 0 Protection
control pin.
m
PO
4 I Output error detection
pin
PO5 0 MUTING
control pin.
D
LOUDNESS
KEY
input.
Key
on
wake
up
specification.
41 PO
7
D
POWER
KEY input.
Key on
wake
up
specification.
42
P5:
I TAPE2
KEY
input.
No.
Pin name I/O
Function
1 P5.^
I
Remote
control
signal
input
pin.
a
El
STB
for
TC9163N.
B
El
CLOCK
for
TC9163N.
B
El
DATA
for
TC9163N.
B
El
CD
INDICATOR.
B
0 TUNER
INDICATOR.
B
0 PHONO
INDICATOR.
B
pii 0
LINE
INDICATOR.
F'
Plo 0
TAPEI
INDICATOR.
El
SPEAKER-A
INDICATOR.
El
SPEAKER-B
INDICATOR
P25/1N5
El
LOUDNESS
INDICATOR.
P24AN
4
0
POWER
(STAND-BY)
INDICATOR.
P23/IN
3
0
MUTE
INDICATOR.
MUTE ON
:
Repeats
H and L
every 1
second.
Normal
: *‘H”
El
DIRECT
INDICATOR.
P2i/INi
0
TAPE!
INDICATOR.
P2a/INo 0
FUNCTION
switch
MUTE.
Vref
I Pulls up
to
5V.
XlN
I
4.19MHz.
Ceramic
vibrating
and
connecting
terminal.
151 XoUT
0
m
Vss
-
Digatal
GND.
22
Vcc
-
Power
supply
+5V.
23
PSVXciN
I
SPEAKER-B
KEY
input.
25

Pioneer A-505R Specifications

General

Brand	Pioneer
Model	A-505R
Category	Amplifier
Language	English