Sony SRS-X9, Руководство по обслуживанию

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SRS-X9
SRS-X9
40 40
• Waveforms
– MAIN Board –
356 ns
4.3 Vp-p
9 IC013
7
1 V/DIV, 200 ns/DIV
0 IC013
9
1 mV/DIV, 10
P
s/DIV
22.7
P
s
4.2 Vp-p
qa IC905
1
(BOOT)
10 V/DIV, 1
P
s/DIV
1.6
P
s
25.6 Vp-p
qs IC906
1
(BOOT)
10 V/DIV, 1
P
s/DIV
1.6
P
s
25.6 Vp-p
1
IC002 qf (AUDIO-MCLK)
1 V/DIV, 20 ns/DIV
40.6 ns
3.8 Vp-p
2
IC002 wl (AUDIO-BCLK)
1 V/DIV, 50 ns/DIV
81.5 ns
4.1 Vp-p
5.2
P
s
4.1 Vp-p
3
IC002 e; (AUDIO-LRCK)
1 V/DIV, 2
P
s/DIV
4
IC002 ts (AUDIO-BCLK1)
1 V/DIV, 100 ns/DIV
164 ns
4.2 Vp-p
10.4
P
s
3.8 Vp-p
5
IC002 td (AUDIO-LRCK1)
1 V/DIV, 5
P
s/DIV
6 IC002
ua
(XTAL)
1 V/DIV, 50 ns/DIV
75 ns
3.3 Vp-p
7
IC002 oa (AUDIO-X1)
1 V/DIV, 20 ns/DIV
40.4 ns
3.8 Vp-p
8
IC002 <zv/ (USB-X2)
500 mV/DIV, 10 ns/DIV
21 ns
1.1 Vp-p
• IC Block Diagrams
– MAIN Board –
IC009 PCM1808PWR
IC010 BU4229F-TR
IC014, 912 MM3411A33NRE IC402 TS3USB221RSER
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
VDD
DGND
4
5
LRCK 7
REFERENCE
u 1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT 12
VINR 14
VINL 13
MD1 11
MD0 10
DOUT 9
BCK 8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SCKI 6
VREF 1
–
+
VDD 2
GND 1
VOUT 4
CT 3
VREF
VOUT 5
NC 4
CE 3
GND 2
VDD 1
+
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
1D+
D+
1
8
S
VCC
9
D– 7
1D– 2
OE 6
5
10
CONTROL
SWITCH
2D+ 3
2D–
GND
4