10
STR-DE185
SECTION 4
DIAGRAMS
1 to 7 DIG7 to 1 O Digit drive signal output to the fluorescent indicator tube (FL201).
8 +5V — Power supply pin (+5 V)
9 CL O Serial clock signal output to FM/AM tuner pack.
10 DO O Serial data signal output to FM/AM tuner pack.
11 DI I Serial data signal input from FM/AM tuner pack.
12 CE O Serial chip enable signal output to FM/AM tuner pack.
13 VOL DATA O Serial data signal output to sound control IC.
14 VOL CE O Serial clock signal output to sound control IC.
15 RDS DATA I RDS data signal input from FM/AM tuner pack. (AEP, UK model only)
16 PROTECTOR I Overload detection signal input
17 RESET I Reset signal input
18 TUNED I TUNED indicator detection signal input from FM/AM tuner pack.
19 STEREO I STEREO indicator detection signal input from FM/AM tuner pack.
20 AVSS — Analog ground
21 VERSION I Destination select signal input (Fixed at H: US model, L: AEP, UK model)
22 FM SIGNAL OUT I
FM/AM signal meter voltage detection signal input from FM/AM tuner pack.
(AEP, UK model only)
23 to 28 AD6 to 1 I Function keys signal input
29 AVDD — A/D converter power supply pin (+5 V)
30 AVREF — A/D converter reference voltage input (+5 V)
31 NC — Not used. (Connect to AVREF pin in this set)
32 OPEN — Not used. (Open)
33 GND — Ground
34 X1 I Master clock input (4.19 MHz)
35 X2 O Master clock output (4.19 MHz)
36 REC SW1 O VIDEO 1 ON/OFF signal output
37 REC SW2 O MD/TAPE ON/OFF signal output
38, 39 VOL A, B I Master volume JOG data input A, B
40 FUNC.MUTE O Not used. (Fixed at L in this set)
41 CK O Serial clock signal output to electoric volume IC.
42 DATA O Serial data signal output to electoric volume IC.
43 STB O Serial data strobe signal output to electoric volume IC.
44 SYS.POWER I System power signal input
45 AC MUTE O A-Class mute signal output
46 RDS INT I RDS clock signal input from FM/AM tuner pack. (AEP, UK model only)
47 STOP I Stop signal input from reset signal generator IC.
48 VSS — Ground
49 SIRCS I Sircs signal input from remote control receiver IC.
50 TUNER MUTE O Muting control signal output to FM/AM tuner pack.
51 NC — Not used. (Open)
52 +5V — Power supply pin (+5 V)
53 BASS B. LED O BASS BOOST LED drive signal output
54 SPK A LED O SPEAKERS A LED drive signal output
55 SPK B LED O SPEAKERS B LED drive signal output
4-1. IC PIN DESCRIPTION
• IC201 µPD78044FGF-200-3B9 (SYSTEM CONTROLLER, FL DRIVER)
Pin No. Pin Name I/O Pin Description
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