6-15. Ic Pin Function Description - Sony HCD-GR8 Service Manual

6-15. IC PIN FUNCTION DESCRIPTION

MAIN BOARD IC301 µPD780018YGF-011-3BA (MASTER CONTROL)
Pin No. Pin Name I/O
1 TA-MUTE O
2 DBFB-H/L O
3 427-LAT O
4 K-CON-LAT O
5 K-CON-ON O
6 F-RELAY O
7 R-RELAY O
8 PL-RELAY O
9 TEST I
10 X2 O
11 X1 I
12 VDD –
13 XT2 O
14 XT1 I
15 RESET I
16 (INT/IN) I
17 (INT/IN/OUT) I
18 SCOR O
19 SOFT-TEST O
20 AC-CUT I
21 RDS-INT I
22 RDS-DATA I
23 VDD –
24 AVDD I
25 ADJ I
26 A-SHUT I
27 B-SHUT I
28 B-HALF I
29 CLK-CHECK I
30 SPEC-IN I
31 ADJ 2 I
32 DEMO-MODE I
33 AVSS –
34 SQ-DATA-IN I
35 — –
36 SQ-CLK I
37 SW-ON/OFF O
38, 39 FUNC 1, 2 I
40 VSS –
41 VOL-LAT O
42 PL-LAT O
43 COM-DIN I
Line mute signal output
DBFB H/L select signal output
Latch signal output for IC201 (M62427FP)
Not used
Main speaker relay control output
Surround speaker relay control output
Surround speaker relay control output
Connected ground
X'tal (5MHz)
Power supply (+5V)
X'tal (32.768 kHz)
Reset signal input
Connected ground
Subcode data request signal output
Software test port
Reset signal input
Serial data transfer clock signal input
(HCD-RX90: AEP, German, UK, Northern European models only)
Serial data input (HCD-RX90: AEP, German, UK, Northern European models only)
Power supply (+5V)
Analog reference voltage input
CD adjust point port
A Deck reel pulse detector
B Deck reel pulse detector
Half detector signal input
Connected ground
Version select signal input
Connected ground
DEMO H/L select signal input
Ground
Subcode Q data clock input
Not used
Sub code Q data clock input
Not used
Connected ground
Ground
Not used
Connected ground
Function
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