Servo/System Control Microprocessor Pin Functions (Ma-372 Board Ic162) - Sony SLV-SE200 Service Manual

5-6. SERVO/SYSTEM CONTROL MICROPROCESSOR PIN FUNCTIONS
(MA-372 BOARD IC162)
Pin No. Pin Name
1 DEST1
2 DEST2
3 TU AFT
4 FU KEY2
5 FU KEY1
6 S SENS
7 T SENS
8 RF ENV
9 N.C.
10 MOD CONT
11 KKP+
12 KKP–
13 QVD
14 REMOCON
15 CROT
16 HA SW
17 ENV S
18 RF SWP
19 AF SWP
20 END LED
21 AV CONT
22 AF REC P
23 FULL ERS
24 CAP RVS
25 I CONT
26 MODE 4
27 MODE 3
28 MODE 2
29 MODE 1
30 REC PRF
31 IIC CLK1 (EEP)
32 IIC DATA1 (EEP)
33 CAM
34 RESET
35 32kHz (IN)
36 32kHz (OUT)
37 Vcc
38 17.734475MHz (IN)
39 17.734475MHz (OUT)
40 Vss
41 NICAM. CLK
42 NICAM. DATA
43 CLK SEL
44 OSC CHARA (IN)
45 OSC CHARA (OUT)
46 NUB
47 OSD LPF
48 LP
49 OSD GND
50 OSD V IN
I/O
I Destination identification input 1
I Destination identification input 2
I AFT input from TUNER for station selection
I Function key input (9 keys)
I Function key input (9 keys)
I Tape end sensor input
I Tape top sensor input
I Video RF envelope input
— N.C.
O RF modulator ON/OFF control
I KKP 2-phase pulse B input
I KKP 2-phase pulse A input
O Pseudo VD output
I Remote control SIRCS signal input
O Head azimuth information
O SP/EP head switching signal
I Identification signal of SP/EP head output comparison & detection
O Video RF switching pulse output
O N.C.
O End sensor LED output
O EURO 21 pin AV CONT signal output
O N.C.
O N.C.
O Inverted capstan signal
O EURO 21 pin-I CONT signal output
I Cam encode data 4
I Cam encode data 3
I Cam encode data 2
I Cam encode data 1
I Safety tab detection input
O I2C clock (EEPROM control)
I/O I2C data (EEPROM control)
O Cam motor control signal
I Reset input
I Sub clock input
O Sub clock output
Power supply input terminal (high speed mode: 4.0 to 5.5 V, low speed mode: 2.6 to 5.5 V)
I Main clock input
O Main clock output
Ground terminal
O N.C.
O N.C.
I Selection of oscillation clock when reset is canceled. L: sub clock, H: main & sub clocks
I/O Clock input for OSD character size
I/O Clock output for OSD character size
Connected to Ground
I/O External filter that doubles the fsc, is connected to this terminal
O "L" at SP. "H" at EP/LP.
Ground terminal of OSD/slicer
I Video signal input for OSD overlay
5-3
Function