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RS-X933
RS-X933
@ TERMINAL FUNCTION OF IC's
° C901 (M50746-166SP): MICROCOMPUTER
Vec
aa
Power supply terminal
AVss
|
* Connected to Vsg
Vaer
(ama: aa
Standard voltage terminal (5V)
CUE/REV mute signal
e"L" level in muting is off mode.
e"H" level in muting is on mode.
Direction indicator signal of deck A
e"L" level with forward mode.
¢ "OPEN" with reverse mode.
Mater mute control signal
e"L" level in muting is off mode.
e "OPEN" when muting is on mode.
Line out mute signal
Rec. amp. mute signal of deck A
e"L" level in mute is off mode.
e"H" level in mute is on mode.
Line out mute signal (Not used)
e"L" level in muting is off mode.
¢ "OPEN" when muting is on mode.
Connected to GND
Connected to GND
Key switch scan (DECK A: STOP, F.F., REW, F. PLAY, R. PLAY, REC.,
PAUSE, S. START, X2, X1, DOLBY C, B)
KEY 1
Key switch scan (DECK B: STOP, F.F., REW, F. PLAY, R. PLAY)
| i4.sd[)
so Ptay2
=«|~——S<O~S——=«S&Ys Deck A Playback LED display/CUE, REV, LED display
| 15 |
PLAY?
|
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Deck BPlayback LED display/CUE, REV, LED display
Auto Rec. mute terminal.
"L"=KEY ON, "H"=KEY OFF
Not used.
Deck A Rec. mode LED display
e"L" level in Deck A Rec. mode.
e "H"' level in other mode.
Deck A Remote control LED display
e"L" level in LED on mode.
e"H" level in LED off mode.
Deck B Remote control LED display
"L" level when LED is on mode.
e "H" level when LED is off mode.
B side select signal to CD player, used during CD synchro editing mode.
Synchro start signal input from CD player
Remote control serial data
Timer rec terminal
Timer play terminal
Primary AC power detection terminal
Connected to Vss
Reset terminal
e"L" level when reset is on mode.
e"L" — "H" level when reset is off mode.
MMT
LMT
Pp)
=
A
Ls)
DMT
REV 1
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3
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ay
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RCS
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7
Clock OSC terminal
Not used, open.
Connected to GND
Test terminal
Power ON/OFF switch input
«"L" level with power ON
e"H" level with power OFF
Deck B Rotation pulse signal of reel table
REEL 1
o N
pS =
oa
.
a
[wopwision [Function
[1
Beek A Rotation pulse signal of eeitable
SSCS
[1
J eck Reverse Rec. nh. switch select terminal
P71
eck Forward Rec. Inh. switch select terminal
[71
J beck 8 mechanism mode switch select termnal
Deck B cassette half detection switch
e"L" level in half detection switch is on mode.
e"H" level in half detection switch is off mode.
MPX filter IN/OUT control signal
e "OPEN" with Dolby NR "IN"
e"L" level with Dolby NR "OUT"
Deck A play select signal
e"L" level with PLAY/CUE/REVIEW mode.
e "H" level with any other mode.
X2 Speed LED display
e"L" level when LED is on mode.
e "OPEN" when other mode.
X1 Speed LED display
e"L" level when LED is on mode.
e "OPEN" when other mode.
Connected to GND
Dolby C LED display
e "L' level when LED is on mode.
e "OPEN" when other mode.
(Not used, open.)
Dolby B LED display
e"L" level when LED is on mode.
e "OPEN" when other mode.
Encode/Decode select signal
e"L" level in encode mode.
e"H" level in decode mode.
Deck B reverse mechanism select terminal (Connected to GND)
[0 | Wot used, open
Direction indicator signal of deck B
Deck B Forward Rec. Inh. switch select terminal
Deck B Motor speed control signal
e"L" level when normal speed (X1).
e "H" level when high speed (X2).
Deck B Solenoid control signal
e "H"' level when solenoid is on mode.
e "L" level when solenoid is off mode.
Deck B Motor control signal
e "HH" level when motor is on mode.
e¢"L" level when motor is off mode.
Deck A mechanism
mode switch select terminal
Deck A cassette half detection switch
e"L" level in half detection switch in on mode.
e "H" level in half detection switch in off mode.
Deck A Motor speed control signal
¢ "H" level when normal speed (X71).
e"L" level when high speed (X2).
Deck A Solenoid control signal
eH"
level when solenoid is on mode.
e"L" level when solenoid is off mode.
Deck A Motor contro} signal
e "H" level when motor is on mode.
e"L" level when motor is off mode.
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