Sony HCD-DR3, Service Manual, Page: 29 / 52

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