Panasonic SA-HT920P - Page 49

24 Terminal Function of ICs
24.1 IC2018 (C2CBJG000474): Operation CPU
Pin No.
Terminal Name
I/O
Function
1 LOAD I UP/DOWN switch signal input
2 OP/CL REV O Reverse control signal output for OPEN/CLOSE motor
3 OP/CL FWD O Forward control signal output for OPEN/CLOSE motor
4 OPEN SW I Rotary tray OPEN switch signal input
5 POSSITION I Position detection sensor signal input
6 NC - Not used, open
7 TUNER FWD O Forward control signal output for turn motor
8 BYTE - GND
9 CNVSS - GND
10 XCIN - Sub clock input (32.768kHz)
11 XCOUT - Sub clock output (32.768kHz)
12 RESET I System reset signal input
13 XOUT - Main clock output (8.0MHz)
14 VSS - GND
15 XIN - Main clock input (10.0MHz)
16 VCC - Power supply terminal (5V)
17 /NMI I Connect to VCC, external interrupt I/P
18 RMT I Remocon signal input
19 SYNC I AC failure detection input
20 TURN REW O Reverse control signal output for turn motor
21 PULSE I Speed detection sensor signal input
22 SEL I Model select signal input
23 EDA
I/O
EEPROM data in/output
24 ECK O EEPROM clock output
25 ECS O EEPROM latch output
26 PWM O Pulse width modulation output for the changer
27 SD I Tuner signal detect input
28 TU ST/DO I Stereo indicator from Tuner/ DO output of Tuner IC
29 TU SCL(PLL CK) O Clock output for Tuner
30 TU SDA(PLL DA) O Data output for Tuner
31
TU FM DET(PLL CE)
I Tuner FM detect signal input
32 V MUTE2 O Mute signal 2 for video output
33 V MUTE1 O Mute signal 1 for video output
34 MUTE S O Mute signal output for surround Audio signal
35 DVD CMD O CDM signal output for the DVD module
36 DVD STA I Status signal input from the DVD module
37 DVD CK I CLK signal input from the DVD module
38 WIDE1 O Wide function control signal output
39 MUT FRNT O Mute signal output for Front speaker
40 MUTE C O Mute signal output for Center speaker
41 EPM I Signal output for Flash
42 SUB MUTE O Mute signal output for Subwoofer
43 HP MUTE O Mute signal output for Headphone
44 DVD MUTE I Signal output from DVD module control mute circuit
45 V MUTE3 O Mute signal 1 for video output
46 VMIX Ctrl O Control signal output for the video signal mix
47 MUTE L O Mute signal output for the line output
48 VOL DA O Data output for 6ch VOL ASP