– 77 –
Pin No.
Pin Name
I/O
Pin Description
49
—
I
50
—
O
Not used.
51
—
O
52
XMECH-REQ
I
Communication request input from main microcomputer (IC501).
53
MECH-DTI
I
Serial data input from main microcomputer (IC501).
54
MECH-DTO
O
Serial data output to main microcomputer (IC501).
55
MECH-SCK
I
Serial clock input from main microcomputer (IC501).
56
AVSS
—
A/D port Ground
57
AVREF
—
A/D port power supply (+5V)
58
AVDD
—
A/D port power supply (+5V)
59
TEND
I
T-END sensor input
60
SEND
I
S-END sensor input
61
H-FIX
I
62
H-FIX
I
63
THICK
I
Thick switch input
64
SET-MODE
I
Fixed at “H” level.
65
CAS-MODE
I
Fixed at “H” level.
66
ATF-IN
I
ATF pilot signal input
67
TFG
I
T reel FG signal input
68
SFG
I
S reel FG signal input
69
CFG
I
Capstan FG signal input
70
DFG
I
Drum FG signal input
71
DPG
I
Drum PG signal input
72
DREF
I
Drum reference signal input
73
ATF-S2
I
Input of AFT sampling pulse for DPG automatic adjustment.
74
H-FIX
I
Not used. (Fixed at “H” level.)
75
—
O
Not used.
76
XCAS-TST
I
Test pin. “L” for cassette compartment without test mode.
77
MST-CLK
I
Master clock input
78
PBDT
I
PB data for ATF SYNC.
79
SWP
O
Switching pulse output
80
AGC-PWM
O
Output of PWM signal for AGC.
O
Output of PWM signal for T reel.
O
Output of PWM signal for S reel.
O
Output of PWM signal for drum.
O
Output of PWM signal for capstan.
I
Not used. (Fixed at “H” level.)
I
Test pin. “L” for test mode. (Used at D PG, PATH and torque.)
I
Not used. (Fixed at “H” level.)
—
Ground
—
+5V power supply
—
Connect to +5V.
O
ATF sampling pulse #2 output
92
AREA
O
AREA signal output
93
—
O
94
—
O
Not used.
95
—
O
96
XLP-REC
O
LP REC control output. “L” for LP mode RED.
Fixed at “H” level.
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