Sony CDX-M770 Service Manual page 29

• IC901 CXD2727Q-4 (DIGITAL SIGNAL PROCESSOR, DIGITAL FILTER, D/A CONVERTER) (MAIN BOARD)
Pin No. Pin Name
1 DGND
2 – 21 NIL
22 – 24 JPE1 – JPE3
25 DVDD
26 DA1GND
27 DA1LO
28 DA1VDD
29 DA1RO
30 DA1VDD
31 DA1GND
32 ADLVDD
33 ADLGND
34 ADLREF
35 ADLIN
36 DA2GND
37 DA2VDD
38 DA2LO
39 MCKVDD
40 MCKO
41 MCKI
42 MCKGND
43 DA2RO
44 DA2VDD
45 DA2GND
46 ADRIN
47 ADRREF
48 ADRGND
49 ADRVDD
50 DA3GND
51 DA3VDD
52 DA3LO
53 DA3VDD
54 DA3RO
55 DA3GND
56 DGND
57 SYS RST
58 BFOT
59 SCK
60 REDY
61 TRDT
62 XLAT
63 RVDT
64 24/32BIT (NIH)
I/O
— Ground terminal (digital system)
I Input terminal for the test (fixed at "L")
I External condition jump terminal "H": condition jump (fixed at "L")
— Power supply terminal (+3.3 V) (digital system)
— Ground terminal (for D/A converter 1) (analog system)
D/A converter 1 (L-ch side) output terminal
O
Analog signal output for front side (L-ch side) output in this set
— Power supply terminal (+3.3 V) (for D/A converter 1) (analog system)
D/A converter 1 (R-ch side) output terminal
O
Analog signal output for rear side (L-ch side) output in this set
— Power supply terminal (+3.3 V) (for D/A converter 1) (analog system)
— Ground terminal (for D/A converter 1) (analog system)
— Power supply terminal (+3.3 V) (for L-ch side A/D converter) (analog system)
— Ground terminal (for L-ch side A/D converter) (analog system)
O Connected to the bus control for A/D converter (for L-ch side)
A/D converter (L-ch side) analog input terminal
I
Tuner and bus audio input signal (L-ch side) in this set
— Ground terminal (for D/A converter 2) (analog system)
— Power supply terminal (+3.3 V) (for D/A converter 2) (analog system)
O D/A converter 2 (L-ch side) output terminal (Not used.)
— Power supply terminal (+3.3 V) (for master clock) (analog system)
O System clock output terminal (16.9344 MHz)
I System clock input terminal (16.9344 MHz)
— Ground terminal (for master clock) (analog system)
D/A converter 2 (R-ch side) output terminal
O
Analog signal output for sub woofer output in this set
— Power supply terminal (+3.3 V) (for D/A converter 2) (analog system)
— Ground terminal (for D/A converter 2) (analog system)
A/D converter (R-ch side) analog input terminal
I
Tuner and bus audio input signal (R-ch side) in this set
O Connected to the bus control for A/D converter (for R-ch side)
— Ground terminal (for R-ch side A/D converter) (analog system)
— Power supply terminal (+3.3 V) (for R-ch side A/D converter) (analog system)
— Ground terminal (for D/A converter 3) (analog system)
— Power supply terminal (+3.3 V) (for D/A converter 3) (analog system)
D/A converter 3 (L-ch side) output terminal
O
Analog signal output for rear side (R-ch side) output in this set
— Power supply terminal (+3.3 V) (for D/A converter 3) (analog system)
D/A converter 3 (R-ch side) output terminal
O
Analog signal output for front side (R-ch side) output in this set
— Ground terminal (for D/A converter 3) (analog system)
— Ground terminal (digital system)
I System reset signal input from the master controller (IC501) "L": reset
O Master clock signal output terminal
I Serial data transfer clock signal input from the master controller (IC501)
Transfer enable signal output to the master controller (IC501)
O
"L": transfer prohibition
O Serial data output to the master controller (IC501)
I Serial data latch pulse input from the master controller (IC501)
I Serial data input from the master controller (IC501)
Serial data 24/32 bit slot selection signal input terminal
I
"L": 24 bit slot, "H": 32 bit slot (validity at slave mode) (fixed at "L" in this set)
Pin Description
CDX-M770
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