Sony STR-DE897 Service Manual page 14

STR-DE897
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• IC1101 MB90478PF-G-172-BND (SYSTEM CONTROL) (DIGITAL Board (3/3))
Pin No. Pin Name
1 DATAO
2 GP9
3 BST
4 HCS
5 HACN
6 XRST
7 PM
8 GP12
9 AK5380_PDN
10 AK4355_CSN
11 VSS
12 AK4355_PDN
13 AK4381_PDN
14 AK4381_CSN
15 AK4355_CLK
IC_CLK
16
(VOL_TUNER_TC9273)
IC_DATA
17
(VOL_TUNER_TC9273)
18 HDOUT
19 HDIN
20 HCLK
21 AK4355_CDT1
TE
L 13942296513
22 VOL_LATCH
23 VCC5
24 SYS_MUTE
25 ANA/DIG
26 FL_CLEAR
27 FLASH2
28 FLASH1
29 ENC_A
30 ENC_B
31 F_A
32 F_B
33 SCL
34 SDA
35 AVCC
36 AVRH
37 AVSS
38 to 40 A/D0 to A/D2
41 VERSION
42 VSS
43 2ND_ROOM
44 006_LAT
45 VOL_ENC (A)
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46 VOL_ENC (B)
47 011_LAT
48 STOP
.
49 MOD0
50 MOD1
51 MOD2
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I/O
I Serial data line signal input from DIR IC
I GP9 signal input from DSP IC
O Boot stop control signal output for DSP IC
O Chip select signal output for DSP IC
I Acknowledge signal input from DSP IC
O Reset signal output for DSP IC
O PLL control signal output for DSP IC
O GP12 signal output for DSP IC
O Power down signal output for ADC IC
O Chip select signal output for 6CH DAC IC
— Ground
O Power down signal output for 6CH DAC IC
O Power down signal output for 2CH DAC IC
O Chip select signal output for 2CH DAC IC
O Clock signal output for 2CH/6CH DAC IC
O Clock signal output for FUNCTION SELECT IC and tuner pack
O Serial data signal output for FUNCTION SELECT IC and tuner pack
I Serial data input from DSP IC
O Serial data output for DSP IC
O Serial data clock signal output for DSP IC
O CDT1 signal output for 2CH/6CH DAC IC
O Latch signal output for FUNCTION SELECT IC
— Power supply pin (+3.3 V)
O System mute control signal output
O Muting and error port signal output
O Reset signal output for FL DISPLAY DRIVER IC
— Flash programming signal output 2
— Flash programming signal output 1
I Input selector encoder (+) signal input
I Input selector encoder (–) signal input
I –/+ (cursor) encoder (–) signal input
I –/+ (cursor) encoder (+) signal input
O Clock signal output for EEPROM IC
I/O Serial data input/output for EEPROM IC
— Power supply pin (+3.3 V)
— Power supply pin (+3.3 V)
— Ground
I Key signal input (A/D port)
Destination detection signal input
I
(Fixed at L: US, Canadian model, H: Except for US, Canadian model)
— Ground
O 2ND ZONE relay driver control signal output
O Latch signal output for AUDIO SELECTOR IC
I Volume encoder (+) signal input
I Volume encoder (–) signal input
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O Latch signal output for VIDEO SELECTOR IC
y
I AC off detection signal input
i
— Selection of micon operation mode
— Not used (Connect to AVCC)
— Selection of micon operation mode
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2 9
8
Pin Description
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9