Sony SCD-C222ES - Es Series 5 Disc, Service Manual

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SCD-C222ES
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MAIN BOARD IC803 CXD9647R (DSD DIGITAL SIGNAL PROCESSOR)
Pin No. Pin Name I/O Description
1 VDD — Power supply terminal (+3.3V) (digital system)
2 XMSDOE O Serial data output enable signal output terminal Not used (open)
3 MSREADY I
Ready signal input from the CPU (IC901) “L”: ready
4 MSDATO O
Serial data output to the CPU (IC901)
5 MSDATI I
Serial data input from the CPU (IC901)
6 MSCK I
Serial data transfer clock signal input from the CPU (IC901)
7 XMSLAT I
Serial data latch pulse signal input from the I/O expander (IC902)
8 GND —
Ground terminal (digital system)
9 to 16 TESTO O
Output terminal for the test (normally: open)
17, 18 TESTI I
Input terminal for the test (normally: fixed at “L”)
19 TESTO O
Output terminal for the test (normally: open)
20 GND —
Ground terminal (digital system)
21 TESTI I
Input terminal for the test (normally: fixed at “L”)
22 GND —
Ground terminal (digital system)
23 TESTI I
Input terminal for the test (normally: fixed at “L”)
24 TESTO O
Output terminal for the test (normally: open)
25 VDD —
Power supply terminal (+3.3V) (digital system)
26 GND —
Ground terminal (digital system)
27 TESTI I
Input terminal for the test (normally: fixed at “L”)
28 FS128 O
Bit clock signal (2.8224 MHz) output for DSD data output to the DSD decoder (IC801)
29 TESTI I
Input terminal for the test (normally: fixed at “L”)
30 FS64 O
Phase reference signal output for DSD output phase modulation to the DSD decoder (IC801)
31 GND —
Ground terminal (digital system)
32 DSI1 I
DSD data (front L-ch) input from the DSD decoder (IC801)
33 GND —
Ground terminal (digital system)
34 DSI2 I
DSD data (front R-ch) input from the DSD decoder (IC801)
35 VDD —
Power supply terminal (+3.3V) (digital system)
36 DSI3 I
DSD data (center) input from the DSD decoder (IC801)
37 GND —
Ground terminal (digital system)
38 DSI4 I
DSD data (sub woofer) input from the DSD decoder (IC801)
39 GND —
Ground terminal (digital system)
40 DSI5 I
DSD data (surround L-ch) input from the DSD decoder (IC801)
41 VDD —
Power supply terminal (+3.3V) (digital system)
42 DSI6 I
DSD data (surround R-ch) input from the DSD decoder (IC801)
43 GND —
Ground terminal (digital system)
44 to 46 TESTO O
Output terminal for the test (normally: open)
47 TESTI I
Input terminal for the test (normally: fixed at “L”)
48 TESTO O
Output terminal for the test (normally: open)
49 TESTI I
Input terminal for the test (normally: fixed at “L”)
50 GND —
Ground terminal (digital system)
51 VDD —
Power supply terminal (+3.3V) (digital system)
52 TESTO O
Output terminal for the test (normally: open)
53 GND —
Ground terminal (digital system)
54 TESTO O
Output terminal for the test (normally: open)
55 GND —
Ground terminal (digital system)
56 DSAL O
DSD data (front L-ch) output to the digital filter (IC301)