Sony XR-4950X Service Manual page 25

Pin No. Pin Name
84 REL
85 POS3
86 POS2
87 POS0
88 POS1
89 LMLOD
90 LMEJ
91 TAPON
92 CMON
93, 94 —
95 DAVSS
96 NS MASK
97 to 99 —
100 DAVDD
*1 Loading/tape operation motor control
Mode
Terminal
LMLOD (pin il)
LMEJ (pin o;)
I/O
Rotation detection signal input from supply reel sensor and take-up reel sensor on the deck
I
mechanism
I
Tape position (EJECT/FF/REW/
I
REV/FWD mode) detection signal
input from the tape operation switch
I
on the deck mechanism
I
Motor drive signal output to the loading/tape operation motor driver (IC351) "H" active
O
(For the loading direction and forward side operation) *1
Motor drive signal output to the loading/tape operation motor driver (IC351) "H" active
O
(For the eject direction and reverse side operation) *1
O Tape system power supply on/off control signal output "H": tape on
O Capstan/reel motor (M901) drive signal output "H": motor on
O Not used (open)
— Ground terminal (for D/A converter) Not used (open)
O Discharge control signal output terminal "H": discharge Not used (open)
O Not used (open)
— Power supply terminal (+5V) (for D/A converter) Not used (open)
LOADING/
STOP
FORWARD
"L" "H"
"L" "L"
Description
POS0: "L": EJECT mode, "H": others mode
POS1: "L": FF and FWD mode, "H": others mode
POS2: "L": REW mode, "H": others mode
POS3: "L": REV and EJECT mode, "H": others mode
EJECT/
BRAKE
REVERSE
"L" "H"
"H" "H"
XR-4950X
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