Sony STR-DB780 Service Manual

50
STR-DA1ES/DB780
• DIGITAL BOARD IC1201 CXD9617R-K (AUDIO DIGITAL SIGNAL PROCESSOR)
Pin No.
Pin Name
I/O Description
1 VSS
—
Ground terminal
2
XRST
I
System reset signal input from the system controller “L”: reset
3
EXTIN
I
Master clock signal input terminal Not used
4
FS2
I
Sampling frequency selection signal input terminal Not used
5
VDDI
—
Power supply terminal (+2.5V)
6
FS1
I
Sampling frequency selection signal input terminal Not used
7
PLOCK
O
Internal PLL lock signal output terminal Not used
8
VSS
—
Ground terminal
9
MCLK1
I
System clock input terminal (13.6 MHz)
10
VDDI
—
Power supply terminal (+2.5V)
11
VSS
—
Ground terminal
12
MCLK2
O
System clock output terminal (13.6 MHz)
13
MS
I
Master/slave setting terminal “L”: internal clock, “H”: external clock
Fixed at “L” in this set
14 SCKOUT
O
Internal system clock output to the A/D, D/A converter
15 LRCKI1
I
L/R sampling clock signal (44.1 kHz) input terminal Not used
16 VDDE
—
Power supply terminal (+3.3V)
17
BCKI1
I
Bit clock signal (2.8224 MHz) input terminal Not used
18
SDI1
I
Audio serial data input from the A/D, D/A converter
19
LRCKO
O
L/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter
20
BCKO
O
Bit clock signal (2.8224 MHz) output to the A/D, D/A converter
21 VSS
—
Ground terminal
22 KFSIO
I
Audio clock signal input from the digital audio interface receiver
23 to 25 SDO1 to SDO3
O
Audio serial data output to the A/D, D/A converter
26 SDO4
O
Audio serial data output terminal Not used
27
SPDIF
O
SPDIF signal output terminal Not used
28
LRCKI2
I
L/R sampling clock signal (44.1 kHz) input from the digital audio interface receiver
29 BCKI2
I
Bit clock signal (2.8224 MHz) input from the digital audio interface receiver
30 SDI2
I
Audio serial data input from the digital audio interface receiver
31 VSS
—
Ground terminal
32 HACN
O
Acknowledge signal output to the system controller
33 HDIN
I
Serial data input from the system controller
34 HCLK
I
Serial data transfer clock signal input from the system controller
35 HDOUT
O
Serial data output to the system controller
36 HCS
I
Chip select input from the system controller
37 SDCLK
O
SD-RAM clock output terminal Not used
38 CLKEN
O
SD-RAM chip enable output terminal Not used
39 RAS
O
Row address strobe signal output terminal Not used
40 VDDI
—
Power supply terminal (+2.5V)
41 VSS
—
Ground terminal
42 CAS
O
Column address strobe signal output terminal Not used
43 DQM/OE0
O
Output terminal of data input/output mask Not used
44 CS0
O
Chip select signal output to the S-RAM
45 WE0
O
Write enable signal output to the S-RAM
46 VDDE
—
Power supply terminal (+3.3V)
47 WMD1
I
External memory wait mode setting terminal Fixed at “H” in this set

Sony STR-DB780 Specifications

General

Type	Stereo Receiver
Total Harmonic Distortion	0.09 %
Digital inputs	2 Optical, 1 Coaxial
Weight	10.5 kg
Video inputs	composite
Video outputs	1 composite, 1 S-Video
Output Power	100 Watts (8 Ohms, 20 Hz - 20 kHz, 0.09% THD)
Signal-to-Noise Ratio	96 dB (Line in)
Input Sensitivity	150 mV (Line in)