(Ma-338 Board Ic162); Servo/System Control Microprocessor Pin Functions (Ma-338 Board Ic162) - Sony SLV-SE20 Service Manual

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5-6. SERVO/SYSTEM CONTROL MICROPROCESSOR PIN FUNCTIONS

(MA-338 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 Q VD
14 REMOCON
15 COLOR ROT
16 HA SW P
17 ENV SW
18 RF SW P
19 N.C.
20 END LED
21 AV CONT
22 AF REC P
23 FULL ERS
24 CAP RVS
TE
L 13942296513
25 I CONT
26 MODE 4
27 MODE 3
28 MODE 2
29 MODE 1
30 REC PRF
31 I2C CLK EEP
32 I2C 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 N.C.
42 N.C.
43 CLK SEL
44 OSC IN
45 OSC OUT
46 NUB
47 OSD LPF
48 LP
49 OSD GND
50 OSD V IN
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I/O
I
I
I/O
I
I
I
I
I/O
—
O
I
I
O
I
O
O
I
I/O
—
O
O
O
I/O
O
O
I
I
I
I
I
O
I/O
O
I
I
O
I
O
—
—
I
I/O
I/O
I/O
O
I
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2 9
8
Destination identification input 1
Destination identification input 2
AFT input to TUNER for station selection
Function key input (9 keys)
Function key input (9 keys)
Tape end sensor input
Tape top sensor input
Video RF envelop input
N.C.
RF modulator ON/OFF control
KKP 2-phase pulse B input
KKP 2-phase pulse A input
Pseudo VD output
Remote control SIRCS signal input
Head azimuth information
SP/EP head switching signal
Identification signal of SP/EP head output comparison & detection
Video RF switching pulse output
N.C.
End sensor LED output
EURO 21 pin AV CONT signal output
HiFi record control signal
Full erase control signal for A DUB
Inverted capstan signal
Q Q
3 6 7 1 3 1 5
EURO 21 pin-1 CONT signal output
Cam encode data 4
Cam encode data 3
Cam encode data 2
Cam encode data 1
Safety tab detection input
I2C clock (EEPROM control)
I2C data (EEPROM control)
Cam motor control signal
Reset input
Sub clock input
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)
Main clock input
Main clock output
Ground terminal
N.C.
N.C.
Selection of oscillation clock when reset is canceled. L: sub clock, H: main & sub clocks
Clock input for OSD character size
Clock output for OSD character size
Connected to Ground
External filter that doubles the fsc, is connected to this terminal
L at SP
Ground terminal of OSD/slicer
Video signal input for OSD overlay
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.
5-3
9 4 2 8
Function
0 5 8 2 9 9 4 2 8
m
9 9
9 9