Ic Pin Function - Sony STR-WX7 Service Manual

4-19. IC PIN FUNCTION

• IC501 SYSTEM CONTROL (uPD780016AYGF-012-3BA) PANEL BOARD
Pin No. Pin Name I/O
1 CLK O
2 LEVEL A O
3 LEVEL B O
4 PROLOGIC RLY O
5 DBFB B2 O
6 DBFB B1 O
7 TA MUTE O
8 GND —
9 TEST —
10 X2 O
11 X1 I
12 VDD —
13 XT2 O
14 XT1 I
15 RESET I
16 RDS CLK I
17 RDS DATA I
18 VOL A I
19 VOL B I
20 JOG A I
21 JOG B I
22 SPEANA CONT O
23 VDD —
24 A VDD —
25 VACS I
26 SPEANA0 I
27 SPEANA1 I
28 KEY0 I
29 KEY1 I
30 KEY2 I
31 KEY3 I
32 ACCUT I
33 A VSS —
34 GND —
35 FL DATA O
36 FL CLK O
37 FL LAT O
38 FL RESET O
39 GND —
40 VSS —
• Abbreviation
FL : Fluorescent indicator tube
28
Not used
Surround level A signal output
Surround level B signal output
Not used
DBFB level 2 signal output
DBFB level 1 signal output
Mute signal output
Ground
Test terminal (Connected to ground)
X' tal (5MHz)
Power supply (+5V)
X' tal (32kHz)
Reset signal input
RDS clock input
RDS data input
Rotary encoder (VOLUME) pulse input
Rotary encoder (MULTI JOG STATION) pulse input
Spectrum analyzer control output
Power supply (+5V)
Analog power supply (+5V)
Audio input for VACS control
Spectrum analyzer data input
Key data input
Back up signal input
Analog ground
Ground
FL data output
FL clock output
FL latch output
FL reset output
Ground
Ground
Description