Sony SCD-XB940, Руководство по обслуживанию

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21
Pin No. Pin Name I/O Description
1 XSRQ O
Data request signal output to the RF signal decoder (IC622)
2 XSHD I
Header flag signal input from the RF signal decoder (IC622)
3 VDD —
Power supply terminal (+3.3V)
4 VSS —
Ground terminal
5 SDCK I
Serial data clock signal input from the RF signal decoder (IC622)
6 SMUTE I
Muting signal input from the system controller (IC605) “L”: muting
7 XMSLAT I
Latch signal input from the system controller (IC605)
8 MSCK I
Clock signal input from the system controller (IC605)
9 MSDATI I
Serial data input from the system controller (IC605)
10 MSDATO O
Serial data output to the system controller (IC605)
11 MSREDY O
Ready signal input from the system controller (IC605) “L”: ready
12 XMSDOE O
Data enable signal output terminal Not used (open)
13 XRST I
Reset signal input from the expander (IC612)
14 MCKI I
Master clock signal input terminal
15 VSS —
Ground terminal
16 CK75S I
Master clock select signal input terminal “L”: 512fs, “H”: 768fs (fixed at “H” in this set)
17 EXCKO1 O
External clock 1 signal output terminal Not used (open)
18 EXCKO2 O
External clock 2 signal output terminal Not used (open)
19 LRCK I/O
Clock signal input/output terminal (44.1kHz) Not used (open)
20 NC —
Not used (open)
21 MNT2 O
Monitor 2 signal output terminal Not used (open)
22 TRST I
Reset signal input from the expander (IC612) “L”: reset
23 TCK I
Clock signal input terminal for test (normally: fixed at “L”)
24 TDI I
Data input terminal for test (normally: open)
25 TENA1 I
Data enable signal input terminal for test (normally: open)
26 TDO O
Data output terminal for test (normally: open)
27 VST —
Ground terminal for test (normally: fixed at “L”)
28 VDD —
Power supply terminal (+3.3V)
29 VSS —
Ground terminal
30 MNT1 O
Monitor 1 signal output terminal Not used (open)
31 MNT0 O
Monitor 0 signal output terminal Not used (open)
32 XBIT O
Monitor signal output terminal Not used (open)
33 F75HZ O
Clock output terminal (75Hz) Not used (open)
34 SUPDAT O
Serial data output terminal Not used (open)
35 XSUPAK O
Data flag signal output terminal Not used (open)
36 SUPEN O
Data enable signal output terminal Not used (open)
37 TEST1 I
Test 1 signal input terminal for test (normally: fixed at “L”)
38 VSS —
Ground terminal
39 TEST2 I
Test 2 signal input terminal for test (normally: fixed at “L”)
40, 41 VSS —
Ground terminal
42 BCKD I
Phase reference signal input terminal
43 to 45 NC —
Not used (open)
46 BCKA I
Shift clock signal input terminal
47 DSAL O
DSD data (Lch) output terminal
48 DSAR O
DSD data (Rch) output terminal
49 ZDFLGL O
Data (Lch) flag detect signal output terminal
• MAIN BOARD IC617 CXD2751Q (DSD DECODER)