Sony SCD-C555ES Service Manual page 55

• MAIN BOARD IC902 CXD1095BR (I/O EXPANDER1)
Pin No. Pin Name
1 LIM_SW
2 (WISE)
3 F_COML
4 SPCNTL1
5 SPCNTL2
6 TBLL
7 TBLR
8 Vss
9 REMCODE
10 D_SENS
11 S1
12 S2
13 LOAD_OUT
14 SDCNTL
15 LOAD_IN
16 A1OUT
17 NC
18 RST_DSD
19 RST_DP
20 RST_DVD
21 RST_CD
22 VMOD
23 Vss
24 Vdd
25 MULTI
26 SDEN
27 ISBTEST
28 D0
29 D1
30 D2
31 NC
32 NC
33 D3
34 D4
35 D5
36 D6
37 D7
38 XCLR
39 XDIS
40 Vss
41 XWR
42 XRD
43 XCS
44 A0
45 A1
46 A2
47 SWGUP
48 PE1
49 NC
50 TRKFIL
51 XDAC333
I/O
I Limit SW for sled
I Direction of rotation (not used)
I Focus jump L signal (not used)
O Spindle control 1 (not used)
O Spindle control 0 (not used)
O TABLE MOTOR - L DIRECTION
O TABLE MOTOR - R DIRECTION
— Ground terminal
— Remote control code input (not used)
I DISC SENSOR
I Tray position sensor 1
I Tray position sensor 2
O Loading motor drive signal (loading out direction) output terminal
— Sled control (not used)
O Loading motor drive signal (loading in direction) output terminal
O Control A1 signal output
— NC
O Reset Signal for DSD "L" : reset
O Reset Signal for DISPLAY uCOM "L" : reset
O Reset Signal for DVD decoder "L" : reset
O Reset Signal for CD DSP "L" : reset
O Power on/off control signal output for modulation circuit on optical pick-up block "L" : off "H" : on
— Ground terminal
— Power supply terminal (+3.3V)
O MULTI/2CH SW for AUDIO board "L" : 2ch , "H" : multi
O RF_AMP Serial Enable signal (SEN_RF)
O For IC testing
I/O Data bus
I/O Data bus
I/O Data bus
— NC
— NC
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I/O Data bus
I Clear signal Iinput teminal (fixed at "H")
I Reset signal input "L" : reset
— Ground terminal (digital system)
I Write strobe signal input
I Read strobe signal input
I Chip select signal
I Address bus
I Address bus
I Address bus
O Sub Woofer Gain Up (H: GainUP, L: Normal) "L" fixed
O Not used
— NC
O Tracking filter (not used)
I Judges AUDIO board (fix "L")
Description
SCD-C555ES
55