Ic Pin Function Description - Sony CFD-V77S Service Manual

6-7. IC PIN FUNCTION DESCRIPTION

IC702 CD DIGITAL SIGNAL PROCESSOR, LED DRIVE, SYSTEM CONTROL (CXP401-602R)
Pin No. Pin name I/O
1 SEIN I CD SENS input.
2 CNIN I CD SENS input.
3 DATO O CD DSP command data output.
4 XLTO O Latch output.
5 CLKO O Clock output for CD DSP command.
6 DV – Digital ground.
SS
7 DV – Digital power supply (+5V).
DD
8 MON – Not used (Open).
9 MDP O Spindle motor drive control.
10 MDS – Not used (Open).
11 LOCK O Lock signal output.
12 VPCO2 – Not used (Open).
13 VPCO1 – Not used (Open).
Not used (Connect to !∞ pin).
14 VCKI –
Not used (Connect to !¢ pin).
15 V16M –
16 VCTL – Not used ("H" level).
17 PCO O Decoder PLL phase comparator output.
18 FILI I Decoder PLL filter input.
19 FILO O Decoder PLL filter output.
20 AV – Analog ground.
SS
21 CLTV I Decoder PLL VCO control voltage input.
22 AV – Analog power supply (+5V).
DD
23 RF I CD RF signal input.
24 BIAS I Playback EFM asymmetry current constant input.
25 ASYI I Playback EFM asymmerty comparater voltage input.
26 ASYO O Playback EFM full swing output.
27 TEST1 I Test terminal (Fixed at "L").
28 TEST2 I Test terminal (Fixed at "L").
29 XRST I CD reset input.
30 XRSTO O CD reset output. "L" : Reset
31 FOK I FOK signal input.
L/R clock signal output. (Connect to #£ pin)
32 LRCK O
L/R clock signal input. (Connect to #™ pin)
33 LRCKI I
PCM data output. (Connect to #∞ pin)
34 PCMD O
PCM data input. (Connect to #¢ pin)
35 PCMDI I
Bit clock signal output. (Connect to #¶ pin)
36 BCK O
Bit clock signal input. (Connect to #§ pin)
37 BCKI I
38 GTOP – Not used (Open).
39 XPCK – Not used (Open).
40 GFS – Not used (Open).
41 RFCK – Not used (Open).
42 C2PO – Not used (Open).
43 DV – Digital ground.
SS
44 DV – Digital power supply (+5V).
DD
45 XROF – Not used (Open).
Description
— 33 —
Pin No. Pin name I/O
46 MNT3 – Not used (Open).
47 MNT1 – Not used (Open).
48 MNT0 – Not used (Open).
49 C4M – Not used (Open).
50 DOUT – Not used (Open).
51 EMPHI – Not used (Open).
52 WFCK – Not used (Open).
53 SCOR – Not used (Open).
54 SBSO – Not used (Open).
55 EXCK – Not used (Open).
56 DTEST I Test terminal (Fixed at "L").
57 CTEST I Test terminal (Fixed at "L").
= key input.
58 FR I
^ key input.
59 PLAY/PAUSE I
60 FF I + key input.
p key input.
61 STOP I
62 MODE I PLAY MODE key input.
63 DISP/ENTER I DISPLAY/ENTER key input.
64 AU MUTE O Audio mute signal output.
65 BTL MUTE O BTL mute signal output.
66 SENCE2 I CD SENCE input.
67 REC I Function REC input.
68 LIMIT SW I LIMIT switch input.
69 OPEN/CLOSE I CD door open/close switch input.
70 RMC – Not used (Fixed at "H").
71 DV – Digital ground.
SS
72 DV – Digital power supply (+5V).
DD
73 SEG 15 – Not used (Open).
74 SEG 14 – Not used (Open).
75 – 88 SEG 0 – 13 O LCD segment output.
89 – 92 COM 0 – 3 O LCD common output.
93 – 95 VCL 1 – 3 I LCD drive device voltage input.
96 AV 1 – Analog ground.
SS
97 AV 1 – Analog power supply (+5V).
DD
98 AOUT1 O Audio output.
99 AIN1 I Audio input.
100 LOUT1 O L-CH audio output.
101 AV 1 – Analog ground.
SS
102 XV – Oscillator power supply (+5V).
DD
103 XTAI I Oscillator connect terminal (16.9344MHz).
104 XTAO O Oscillator connect terminal (16.9344MHz).
105 XV – Oscillator ground.
SS
106 AV 2 – Analog ground.
SS
107 LOUT2 O R-CH audio output.
108 AIN2 I Audio input.
109 AOUT2 O Audio output.
110 AV 2 – Digital power supply (+5V).
DD
111 AV 2 – Ground terminal.
SS
112 NC – Not used (Connect to ground).
Description
— 34 —