Ic Pin Function Description - Sony STR-DE475 - Fm Stereo/fm-am Receiver Service Manual

3-16. IC PIN FUNCTION DESCRIPTION

• IC102 MB90553ABPF-G-193-BND
Pin No. Pin Name
1 A
2 B
3 BLUE LED
4 DCS LED
5 AFD LED
6 2CH LED
7 MOD LED
8 PW RY
9 P30
10 SP_A RY
11 VSS
12 CENTER RY
13 WOOFER RY
14 REAR RY
15 H/P RY
16 FL DATA
17 FL CLK
18 FL LAT
19 FLASH 1
20 FLASH 2
21 YSS912 CLK
22 YSS912 SI
23 VCC
24 YSS912 SO
25 YSS912 CS
26 HTIB
27 C
28 P50
29 AC MUTING
30 P52
31 P53
32 P54
33 P55
34 AVCC
35 AVRH
36 AVRL
37 AVSS
38 AD KEY IN 1
39 AD KEY IN 2
40 AD KEY IN 3
41 AD KEY IN 4
42 VSS
43 VERSION
44 RDS SIGNAL
45 P66
46 P67
47 STOP
48 RDS DT
49 MD0
50 MD1
(SYSTEM CONTROL)
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
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