Sony STR-K685, Service Manual

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36
STR-K685
• IC Pin Function Description
DIGITAL BOARD IC1101 MB90F045PF-G-9002-SPE1 (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 DATAO I Audio data signal input from DIR
2 GP9 I GP9 signal input from DSP
3 BST O BST signal output to DSP
4 HCS O HCS signal output to DSP
5 HACN I HACN signal input from DSP
6 XRST O Reset signal output to DSP
7 PM O PM signal output to DSP
8 GP12 O GP12 signal output to DSP
9 FL_LAT O FL driver latch signal output
10 PCM1609/1803_RST O IC reset signal output to DAC and ADC
11 VSS — Ground terminal
12 PCM1609_ML O Latch signal output to DAC
13 PCM1609_MC O Clock signal output to DAC
14 PCM1609_MDI O IC data output to DAC
15 PCM1609_MDO I IC data input from DAC
16 FL_CLK O FL driver clock signal output terminal
17 FL_DATA O FL driver data signal output terminal
18 HDOUT I HDOUT signal input from DSP
19 HDIN O HDIN signal output to DSP
20 HCLK O Clock signal output to DSP
21 TUNING_A I Tuning encoder input (not used)
22 TUNING_B I Tuning encoder input (not used)
23 VCC5 — Power supply (+3.3V)
24 V_SW1 O Composite video signal select 1 (Not used (Open))
25 V_SW2 O Composite video signal select 2 (Not used (Open))
26 C LINK_DET I C link detect input (Not used (Open))
27
FLASH2/C LINK_RX
I for FLASH programming
(MICLO)
28
FLASH1/C LINK_TX
O for FLASH programming
(MDCLI)
29 SDA I EEPROM data signal input terminal
30 SCL O EEPROM clock signal output terminal
31 ENC_A I Input selector Encoder (A) signal input
32 ENC_B I Input selector Encoder (B) signal input
33 NC — Not used (Open)
34 NC — Not used (Open)
35 AVCC — Analog power supply (+3.3V)
36 AVRH I Analog reference voltage input (+3.3V)
37 AVSS — Analog ground terminal
38 ADCC I ADCC signal input
39 A/D1 I Function key push signal input
40 A/D2 I Function key push signal input
41 VERSION I Version setting input terminal (DESTINATION)
42 VSS — Ground terminal
43 TUNER SD I RDS signal detect input (Not used)
44 MODEL I MODEL select input
45 VAX CTRL I Vacs control input