– 30 –
1 RADIO CTL O Output of RADIO control signal “ H ”: RADIO ON
2 AM CTL O Output of AM control signal
3 TV CTL O Output of TV control signal
4 CS O Output of clock to EEPROM
5 NC — Not used for this set (Open)
6 E CLK O Output of serial clock to EEPROM
7 LED CTL O Output of LED control signal “ H” : LED ON
8 RDATA O Output of data to remote controller
9 ASP CTL O Output of auto station preset control signal
10
ST/MONO CTL
O Output of FM STEREO/MONO control signal “ L ”: STEREO, “ H ”: MONO
11 RMUM I Remote controller provided/not provided “ H ”: Provided, “ L ”: Not provided
12 NC — Not used for this set (Open)
13
DOLBY/ST SW
I Input of DOLBY/ST switching signal
14 KEY IN I Key input terminal
15 BATT DET I Not used for this set (fixed at “ L ”)
16 E DATA I Input of serial data from EEPROM
17 MUTE CTL O Output of audio MUTE control signal “ L ”: MUTE ON
18 DOLBY CTL O Output of DOLBY ON/OFF control signal “ L ”: DOLBY ON
19 IF DET I Input of IF detection signal
20 GND — Ground terminal
21 GND — Ground terminal
22 EO O Output of PLL error signal
23 VCOL I Input of local oscillating frequency (direct frequency dividing system)
24 VCOH I Input of local oscillating frequency (pulse swallow system)
25 VREG0 — Output of PLL requlator
26 VDD — Power supply terminal
27 VDD — Power supply terminal
28 XOUT O Output of clock (75 kHz)
29 XIN I Input of clock (75 kHz)
30 VREG1 — Output of oscillating circuit regulator
31 VREG0 — LCD drive power supply terminal
32 CAP0 — LCD drive power supply terminal
33 CAP1 — LCD drive power supply terminal
34 VLCD1 — LCD drive power supply terminal
35-37 COM0-2 O Output of common signals to the LCD
38 NC — Not used for this set (Open)
39 COM3 O Output of common signals to the LCD
40-44 LCD0-4 O Output of segment signals to the LCD
45 NC — Not used for this set (Open)
46-53 LCD5-12 O Output of segment signals to the LCD
6-6. IC PIN FUNCTION DESCRIPTION
• AUDIO BOARD IC501 µPD17073GB-912-9EV (SYSTEM CONTROL (SUB))
Pin No. Pin Name I/O Function
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