Sony STR-DE475 Service Manual - Page 23

IC PIN FUNCTION DESCRIPTION, SYSTEM CONTROL, Pin No., Pin Name, Description - relay

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3-16. IC PIN FUNCTION DESCRIPTION • IC102 MB90553ABPF-G-193-BND (SYSTEM CONTROL) 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 Pin Name A B BLUE LED DCS LED AFD LED 2CH LED MOD LED PW RY P30 SP_A RY VSS CENTER RY WOOFER RY REAR RY H/P RY FL DATA FL CLK FL LAT FLASH 1 FLASH 2 YSS912 CLK YSS912 SI VCC YSS912 SO YSS912 CS HTIB C P50 AC MUTING P52 P53 P54 P55 AVCC AVRH AVRL AVSS AD KEY IN 1 AD KEY IN 2 AD KEY IN 3 AD KEY IN 4 VSS VERSION RDS SIGNAL P66 P67 STOP RDS DT MD0 MD1 I/O I Read volume encoder A changing I Read volume encoder B changing O Control Blue LED O Control DCS LED O Control AFD LED O Control 2CH LED O Control MODE LED O Control power relay - O Control front speaker relay - Ground O Control center speaker relay O Control woofer relay O Control rear speaker relay O Control headphone relay O Output data signal to FL tube driver O Output clock signal to FL tube driver O Output latch signal to FL tube driver I Input FLASH 1 signal I Input FLASH 2 signal O Output clock signal to DSP O Output data signal to DSP - Power supply I Input data signal from DSP O Output chip select signal to DSP I Input HTIB signal - Power stabilizing capacitor - O Control power to power amp - - - - - Analog power supply - - - Analog ground I Read key push signal I Read key push signal I Read key push signal I Read key push signal - Ground I Read version setting I Detect RDS signal level - - I Input signal when AC off I Read RDS data - Selection of micom operation mode - Selection of micom operation mode Description STR-DE475 23

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23
STR-DE475
3-16.
IC PIN FUNCTION DESCRIPTION
• IC102 MB90553ABPF-G-193-BND
(SYSTEM CONTROL)
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
I
I
O
O
O
O
O
O
—
O
—
O
O
O
O
O
O
O
I
I
O
O
—
I
O
I
—
—
O
—
—
—
—
—
—
—
—
I
I
I
I
—
I
I
—
—
I
I
—
—
Pin Name
A
B
BLUE LED
DCS LED
AFD LED
2CH LED
MOD LED
PW RY
P30
SP_A RY
VSS
CENTER RY
WOOFER RY
REAR RY
H/P RY
FL DATA
FL CLK
FL LAT
FLASH 1
FLASH 2
YSS912 CLK
YSS912 SI
VCC
YSS912 SO
YSS912 CS
HTIB
C
P50
AC MUTING
P52
P53
P54
P55
AVCC
AVRH
AVRL
AVSS
AD KEY IN 1
AD KEY IN 2
AD KEY IN 3
AD KEY IN 4
VSS
VERSION
RDS SIGNAL
P66
P67
STOP
RDS DT
MD0
MD1
Description
Read volume encoder A changing
Read volume encoder B changing
Control Blue LED
Control DCS LED
Control AFD LED
Control 2CH LED
Control MODE LED
Control power relay
Control front speaker relay
Ground
Control center speaker relay
Control woofer relay
Control rear speaker relay
Control headphone relay
Output data signal to FL tube driver
Output clock signal to FL tube driver
Output latch signal to FL tube driver
Input FLASH 1 signal
Input FLASH 2 signal
Output clock signal to DSP
Output data signal to DSP
Power supply
Input data signal from DSP
Output chip select signal to DSP
Input HTIB signal
Power stabilizing capacitor
Control power to power amp
Analog power supply
Analog ground
Read key push signal
Read key push signal
Read key push signal
Read key push signal
Ground
Read version setting
Detect RDS signal level
Input signal when AC off
Read RDS data
Selection of micom operation mode
Selection of micom operation mode