Ic Pin Function - Sony ST-SE520 Service Manual

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4-6. IC PIN FUNCTION

• IC701 System Control (µPD78205GF-040-3BA)
Pin Name I/O
1 VDD — Power supply (+5V)
2 ANT — Not used
3 ANT — Not used
4 BAND 1 — Not used
5 BAND 2 — Not used
6 IF-B — Not used
7 NC — Not used
8 MONO — Not used
9 TUN — Not used
10 RESET
I System reset input
11 X2
O Oscillation signal output (4.19MHz)
12 4.19MHz
I Oscillation signal output (4.19MHz)
13
GND — Ground
14
NC — Not used
15 LOCK I Lock signal input
16 VDD — Power supply (+5V)
17 CLK O PLL clock to TB101
18 DATA O PLL data to TB101
19 D-IN I PLL clock from TB101
20 CE O PLL Latch to TB101
21 BLN — Not used.
22 ST I Stereo display detection.
23 CAL — Not used
24 AST I Auto stop signal detection
25 AVSS — Ground
26 MUTE O Muting signal output
27 E ON O External control
28 PGM — Not used
29 DATA RDS
I RDS data input
30 R2
O Rotary encoder phase detection
31 KEY 2
I Key input
32
KEY 1 I Key input
33 SI I Signal input
34 AVDD — Analog power supply (+5V)
35 AVREF I Reference voltage (+5V)
36 R IN I Remote control input
37 R 1 I Rotary encoder number of rotation detection
38 RDS CLK I RDS data clock input
39 POWER I Power supply ON/OFF monitor
40 GND — Ground
Function
10
Digitized in Heiloo Netherland
Pin No. Pin Name I/O
41 IS 5 I
42 IS 4 I
43 IS 3 I Model detection
44 IS 2 I
45 IS 1 I
Power supply (+5V)
46 VDD —
FL segment output
47 to 78 P1 to P32 O
Power supply (–30V)
79 V LOAD —
FL segment output
80 to 84 P33 to P37 O
Not used
85 G16 —
FL grid output
86 to 100 G15 to G1 O
• Abbreviation
FL: FLUORESCENT INDICATOR TUBE
10
7/23/2017
Function