(Ma-339 Board Ic162); Servo/System Control Microprocessor Pin Functions (Ma-339 Board Ic162) - Sony SLV-SE70 Service Manual

5-6. SERVO/SYSTEM CONTROL MICROPROCESSOR PIN FUNCTIONS

(MA-339 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 AF ENV
10 MOD CONT
11 KKP+
12 KKP–
13 O VD
14 REMOCON
15 COLOR ROT
16 HA SW P
17 ENV SW
18 RF SW P
19 AF SW P
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 CLK EEP
32 IIC DATA EEP
33 CAM
34 RESET
35 Xc IN (32kHz)
36 Xc OUT (32kHz)
37 Vcc
38 X IN (17.734475MHz)
39 X OUT (17.734475MHz)
40 Vss
41 NICAM CLK
42 NICAM DATA
43 CLK SEL
44 OSC IN
45 OSC 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/O AFT input to 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/O Video RF envelop input
I HiFi envelop input
O RF modulator ON/OFF control
I KKP 2-phase pulse B input
I KKP 2-phase pulse A input
O Pseudo VO 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
I/O Video RF switching pulse output
O HiFi switching pulse output
O End sensor LED output
O EURO 21 pin AV CONT signal output
O HiFi record control signal
I/O Full erase control signal for A DUB
O Inverted capstan signal
O EURO 21 pin-1 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 IIC clock (EEPROM control)
I/O IIC 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
I/O Clock for NICAM control
O Data for NICAM control
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
Ground terminal of OSD/slicer
I Video signal input for OSD overlay
5-3
Function