Ic Pin Function Description - Sony HCD-DR3 Service Manual

5-14.

IC PIN FUNCTION DESCRIPTION

IC601 LC866540A-5K40 SYSTEM CONTROL (FRONT board)
Pin No. Pin Name
1 POWER OUT
2 S.MUT
3 TU.MUT OUT
4 SURROUND OUT
5 DBFB HI/LOW
6 DBFB ON/OFF
7 MD/VIDEO
8 MD(HI)
9 MD MUTE
10 SPEANA H/L
11 SENS 1
12 RESET
13 POWER DOWN IN
14 VDD
15 VSS
16 X1
17 X2
18 VDD1
19 K0
20 K1
21 K2
22 K3
23 K4
24 SPEANA IN 1
25 SPEANA IN 2
26 VACS IN
27 CXD2588Q SCOR
28 COUNT
29 REMOTE IN
30 16G
31 15G
32 14G
33 13G
34 12G
35 11G
36 10G
37 9G
38 8G
39 7G
40 6G
41 5G
42 4G
43 3G
44 2G
45 1G
46 VDD
47 P1 S0
48 P2 S1
49 P3 S2
50 P4 S3
I/O
O Power on/off output
O System mute output (ON at H)
O Tuner mute output (ON at H)
O Surround output (ON at H)
O DBFB normal output (ON at H)
O DBFB high output (ON at H)
O MD/VIDEO output
O MD(HI) output
O Function mute(Line out mute)
O Spectrum analyzer 1,2/3,4
I CXD2589Q SCOR input
I Reset
I Power down in(AC on at H,AC off at H)
— FLD VDD
— Ground
— X'tal oscillator 6MHz
— X'tal oscillator 6MHz
— System VDD 1
I Key input 0
I Key input 1
I Key input 2
I Key input 3
I Key input 4
I Spectrum analyzer 1
I Spectrum analyzer 2
I Vacs in
I CXD2588Q SCOR input
I CXD2588Q COUNT input
I Remote in
O FLD digital output 16
O FLD digital output 15
O FLD digital output 14
O FLD digital output 13
O FLD digital output 12
O FLD digital output 11
O FLD digital output 10
O FLD digital output 9
O FLD digital output 8
O FLD digital output 7
O FLD digital output 6
O FLD digital output 5
O FLD digital output 4
O FLD digital output 3
O FLD digital output 2
O FLD digital output 1
— FLD VDD
O FLD segment output 1
O FLD segment output 2
O FLD segment output 3
O FLD segment output 4
Description
29