Sony HCD-DX170 Service Manual page 58

HCD-DX150/DX170/DX250
• IC Pin Function Description
MAIN BOARD IC509 M30622MEP-A08FPUO (SYSTEM CONTROLLER)
Pin No. Pin Name
1 DAMP SCDT/DIAT SDATA
2 DAMP SHIFT/DIAT SCLK
3 XSCEN
4 SIRCS_IN
5 DSP DIN/DIR DIN
6 DSP DOUT
7 DSP CLK/DIR CLK
8 BYTE
9 CNVSS
10 EN A
11 EN B
12 RESET
13 XOUT
14 VSS
15 XIN
16 VCC
17 NMI
18 DIR ZERO
19 DIR_CSFLAG
20 AC_CUT
21 XRST
22 V-CONTROL
23 DIAT CSOD
24 FL_CLK/LED_CLK
25 MAMUTE
26 LED LAT
27 FL_D_OUT/LED_DATA
28 FL_CS/STB
29 12C CLK
30 12C DATA
31 DVD SID/TXDI
32 DVD SOD/RXDI
33 DVD SCO/CLK1
34 DVD XIFBUSY/RTS1
35 (NO USE)
36 (NO USE)
37 (NO USE)
38 SEL1FS
39 DVD XIFCS
40 P CONT1
41 EMP/FL RESET
42 SEN
43 MTK XRST
44 P CONT2
45 DEVICE
46 CE
47 DRIVE_RST(EN)
58
I/O
O Digital amp (IC108 to 110) data output
O Digital amp (IC108 to 110) data output
O Voltage control for amp (not used)
I Sircs input
O DSP /DIR data out (not used)
I DSP data in (not used)
O DSP/DIR clock (not used)
— Ground terminal
I Ground terminal
I Volume signal input from ENCODER (A)
I Volume signal input from ENCODER (B)
I System reset signal input
O Crystal input for main cock
— Ground terminal
I Crystal output for main clock
— Power supply (+3.3V)
I Not used
I DIR zero in (not used)
I DIR csflag in (not used)
I Detect AC-CUT (primary power off)
O XRST signal output (not used)
O Voltage control output (not used)
I DIAT CSOB signal output (not used)
O FL driver (IC802) / LED driver (IC803) clock
I MAMUTE Signal input from DVD RF (IC102)
O LED driver latch
O FL driver (IC802) / LED Driver (IC803) data out
O FL driver (IC802) chip select
I 12C clock input
I 12C data input
O SID data output to DVD RF (IC102)
I SOD data iutput from DVD RF (IC102)
I Clock signal input from DVD RF (IC102)
O IFBUSY signal output to DVD RF (IC102)
— Not used
— Not used
— Not used
— DIR_SELECT/Flash Write RTS1 (not used)
O DVD RF (IC102) chip select signal
O IC REG control signal
O Not used
O OCSW signal output (not used)
O DVD reset signal
O IC REG control signal
O Not used
O Flash Write CE (not used)
O Driver signal reset
Description