Sony HCD-VR90AV - 6-39. IC PIN FUNCTIONS

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6-39. IC PIN FUNCTIONS
• IC501 MAIN CONTROL (M30622MA-A09FP) (MAIN board)
Pin No. Pin Name I/O Function
1 POWER O Power amp ON/OFF signal output
2 POWER O Power ON/OFF signal output
3 F-RELAY O Front speaker relay control output
4 REAR-RELAY O Rear speaker relay control output
5 CD-POWER O CD power on signal output
6 LINE-MUTE O Line mute signal output
7 DBFB-H/L O DBFB H/L select signal output
8 — — Connected to ground
9 — — Connected to ground
10 XC-IN I
X’tal (32.768 KHz) (SUB CLOCK)
11 XC-OUT O
12 RESET I System reset signal input
13 X-OUT O X’tal (16MHz) (MAIN SYSTEM CLOCK)
14 VSS — Ground
15 X-IN I X’tal (16MHz) (MAIN SYSTEM CLOCK)
16 VDD — Power supply (+5V)
17 NMI I Not used
18 WAKE UP I WAKE UP signal input
19 SCOR I CD Q-data request signal input
20 RDS-INT I RDS data interrupt input (Connected to ground)
21 RDS-DATA I RDS data interrupt input (Connected to ground)
22 AC-CUT I AC cut ON (L)/OFF (H) check
23 PL-CLK O Clock output to pro-logic (Not used)
24 PL-DATA O Data output to pro-logic (Not used)
25 PL-LAT O Latch signal output to pro-logic (Not used)
26 TIMER LED O Not used
27 PROTECT I Speaker protect signal input
28 V MUTE O Video mute signal output
29 IIC-CLK O I
2
C SCL
30 IIC-DATA O I
2
C SDA
31 — — Not used
32 SQ-DATA I Subcode Q data clock input (CD data)
33 SQ-CLK O Subcode Q data clock output (CD data clock)
34 SW-MODE O SW-MODE music/movie select signal output
35 CD-DATA O CD data output (Not used)
36 H/P IN I Head phone detect
37 CD-CLK O CD clock output (Not used)
38 493-LAT O Latch signal output for IC101 (M62493FP)
39 CLOCK-OUT O Clock out signal check
40 NO-USE — Not used
41 NO-USE — Not used
42 FL OFF O Fluorescent indicator tube filament on/off signal output
43 STBY RELAY O Main POWER on/off signal output
44 BASS FREQ O FREQ high/low signal output (Not used)
45 FUNC SEL 1 O Function select signal output
46 FUNC SEL 0 O Function select signal output
47 493-DATA O Data signal output for IC101 (M62493FP)
48 493-CLK O Clock signal output for IC101 (M62493FP)
49 ST-MUTE O Tuner mute signal output
50 STEREO I Stereo detection for tuner