Technics RS-X501

RS-X501
Mi
TERMINAL
FUNCTION
OF
IC’S
e
1C901
(M50963-227SP):
MICROCOMPUTER
(This
microcomputer
is
used
for
mechanical
operation.)
Te)
Division
Power supply terminal DATA IN
; (P3 (1))
GND terminal Bus data signal
DATA OUT
Reference voltage terminal (P3 (0))
Not used, open POF IN
(INT1)
CNVss
(GND)
ite)
Division
Voc
AVss (GND)
Vrer
“AG POWER OFF” det.
terminal
9 >
PWM
Pulse width modulated signal
(Not used, open)
REEL2
(P5 (5))
REEL1
(PS (4)
R. INH2
(P5 (3)
F. INH2
(P5 (2)
Reel rotation pulse signal of
deck 2
“ON”: oy a “OFF”: Ey
KEY2
(AN (5))
Operation key switches
terminal
P6 (3) Not used, open 27
Rec. mute signal of deck 1 28 RESET Reset signal (“L” =RESE
ned (Mute “ON” ="H”, Mute et signal eeu)
2 Clock OSC terminal
RMT2 Rec. mute signal-of deck 2
(P6 (1)) (Mute “ON” =“H”, Mute
“OFF”="L”) 31 | oe | Not used, open
DMT Line out mute signal (Mute Vss :
(P6
(0))
“ON”
="H",
Mute
“OFF”="L”)
|
|
92
|
(GND)
SNES
One
VRIN Variable voitage level signal of TEST ; a Hiyis
10
|
(aN)
rec.
level
volume
(P5
(7))
Tescserminal
Noma
tt)
RLV Peak voltage terminal of rec. PW IN Power switch signal (“ON”:
signal
P5
(6
“
“OFF”:
“H”
(AN 6) g (P5 (6) )
6
3
(AN (4))
Reverse rec. inh. switch select
terminal of deck 2
“ON”: “L, “OFF”: “HH”
QUICK2
(AN (3))
Leader tape det. signal of deck
2
Leader tape det. signal of deck
1
Forward rec. inh. switch select
terminal of deck 2
“ON”: a ig “OFF”: od os iad
=
on
w
= = =
b [é) Ls) =
wo
—_
$
2 ay
B =
16 ARM2 “AUTO REC MUTE” key switch
(P4 (1)) signal of deck 2 MODE2 Mechanism mode switch
———
3
select
terminal
of
deck
2
“AUTO REC MUTE” key switch P5 (14 “ 9, ep ree sy, eps
17
|
ARM
algnal(ar
dace
rea
ON":
“L",
“OFF”:
“H
(P4 (0)) (Not used, open)
AEGD
HALF2
Cassette
half
detection
switch
18
Rec.
mode
signal
of
deck
2
terminal
of
deck
2
4g | REC Rec. mode signal of deck 1 re MPX MPxX filter “ON/OFF” select
(P3
(6))
(Not
used,
open)
(P1
(7))
signal
(“ON”:
“H”,
“OFF”:
“L”)
29
|SYNCHRO
CD
synchro
rec.
signal
T2
Playback
amp.
select
signal
REC
(P3
(5))
(P1
(6))
(Deck
2-P.B.:
“L”,
Others:
“H”)
43 x2 Playback equalizer select
pci Rec. “STAND BY” signal (P1 (5) signal with tape edit of deck 1
Not used, open
Not used, open
Tra |
c
(P1 (2))
Bus clock signal
Dolby NR C “ON/OFF” select
signal (SON”: a eae “OFF”: “H”)