Sony HCD-RX80 - IC PIN FUNCTION DESCRIPTION; MAIN BOARD IC301

– 82 –
1 TA-MUTE O Line mute signal output
2 DBFB-H/L O DBFB H/L select signal output
3 427-LAT O Latch signal output for IC201 (M62427FP)
4 K-CON-LAT O
Not used
5 K-CON-ON O
6 F-RELAY O Front speaker relay control output
7 R-RELAY O
Not used
8 PL-RELAY O
9 TEST I Connected ground
10 X2 O
X'tal (5MHz)
11 X1 I
12 VDD – Power supply (+5V)
13 XT2 O
X'tal (32.768 kHz)
14 XT1 I
15 RESET I Reset signal input
16 (INT/IN) I
Connected ground
17 (INT/IN/OUT) I
18 SCOR O Subcode data request signal output
19 SOFT-TEST O Software test port
20 AC-CUT I Back up signal input (Not used )
21 RDS-INT I Connected ground
22 RDS-DATA I Not used
23 VDD – Power supply (+5V)
24 AVDD I Analog reference voltage input
25 ADJ I CD adjust point port
26 A-SHUT I A Deck reel pulse detector
27 B-SHUT I B Deck reel pulse detector
28 B-HALF I Half detector signal input
29 CLK-CHECK I Connected ground
30 SPEC-IN I Version select signal input
31 ADJ 2 I Connected ground
32 DEMO-MODE I DEMO H/L select signal input
33 AVSS – Ground
34 SQ-DATA-IN I Subcode Q data clock input
35 — – Not used
36 SQ-CLK I Sub code Q data clock input
37 SW-ON/OFF O Not used
38, 39 FUNC 1, 2 I Connected ground
40 VSS – Ground
41 VOL-LAT O
Not used
42 PL-LAT O
43 COM-DIN I Connected ground
44 COM-DOUT O Common serial data output
Pin No. Pin Name I/O Function
6-15. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC301 µPD780018YGF-015-3BA (MASTER CONTROL)