Sony SCD-C555ES Service Manual page 53

• MAIN BOARD IC901 CXP974F096R (MECHA CONTROL)
Pin No. Pin Name
1 MODE_DF
2 AMUTE
3 DOCTRL
4 LAT_DAC
5 DATA_DAC
6 CLK_DAC
7 FCS_JMP_1
8 FCS_JMP_2
9 SENS_CD
10 XCS2
11 XCS_IO
12 XCS_DVD
13 VSS
14 D0
15 D1
16 D2
17 D3
18 D4
19 D5
20 D6
21 D7
22 INT0_DVD
23 INT1_DVD
24 T_SENS
25 MON_DVD
26 DATA_CD
27 XLAT_CD
28 A1IN
29 COUT_CD
30 IN_SW
31 OUT_SW
32 MIRR
33 SQSO
34 SCOR
35 SQCK
36 PF6
37 CLOK_CD
38 XRST
39 VSS
40 XTAL
41 XEXTAL
42 VDD
43 LDON
44 XDIS_IO
45 MUTE_DSD
46 XMSLAT
47 READY_DSD
48 SDIN_DSD
49 SDOUT_DSD
50 SCK_DSD
51 BUSY_DP
I/O
O SACD/CD mode select signal "L" : CD mode "H" : SACD mode
O Analog mute "L" : muting
O Digital out control "L" : digital out off "H" : digital out on
O DAC latch
O DAC data
O DAC clock
O Focus jump 1
O Focus jump 2
I CD DSP Internal status (SENSE) signal
O SRAM chip select (not used)
O IO Expander chip select
O DVD-Decoder chip select
— Ground terminal (digital system)
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I/O Parallel data bus
I DVD-Decoder interrupt
I DVD-Decoder interrupt
I Changer table slit sensor interrupt
I DVD decoder monitor (not used)
O CD DSP data
O CD DSP latch
I Control A1 input interrupt
I CD-DSP COUT signal
I Tray (CHANGER panel) IN SW "L" : loading in
I Tray (CHANGER panel) OUT SW "L" : loading out
I MIRR signal
I CD-DSP sub Q signal input
I SCOR
O CD-DSP sub Q read clock
— Not used
O CD DSP clock
I Reset input
— Ground terminal
I System clock input (20MHz)
O System clock output (20MHz)
— Power supply terminal (+3.3V)(digital system)
O Laser diode on/off control signal "L" : laser diode off, "H" : laser diode on
O IO Expander reset signal
O DSD Decoder mute "H" : muting
O DSD Decoder serial latch
I DSD Decoder Ready signal "L" : ready
I DSD Decoder serial in
O DSD Decoder serial out
O DSD Decoder serial clock
I Display controller BUSY signal
Description
SCD-C555ES
53