Sony CDX-G1200U, Руководство по обслуживанию

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CDX-G1200U/G1201U/G1202U/G1280UM
CDX-G1200U/G1201U/G1202U/G1280UM
24 24
• Waveforms
– MAIN Board –
0 IC001
es
(XTAL_IN)
50 mV/DIV, 50 ns/DIV
83 ns
174 mVp-p
6
IC501 7 (SUB_X2)
500 mV/DIV, 20
P
s/DIV
30.4
P
s
2 Vp-p
7 IC501
0
(MAIN_X2)
1 V/DIV, 50 ns/DIV
108.5 ns
2.9 Vp-p
9 IC601
ug
(XOUT)
1 V/DIV, 50 ns/DIV
83 ns
2.5 Vp-p
8 IC1301
1
(LX)
5 V/DIV, 2
P
s/DIV
2.4
P
s
14.8 Vp-p
1 IC1305
2
(RFOUT)
(CD play mode)
500 mV/DIV, 500 ns/DIV
1.2 Vp-p
2 IC1305
t;
(MCLK)
1 V/DIV, 50 ns/DIV
59 ns
3.7 Vp-p
22.6
P
s
3.4 Vp-p
3 IC1305
ta
(LRCK)
1 V/DIV, 10 P s/DIV
4 IC1305
ts
(BCK)
1 V/DIV, 200 ns/DIV
472 ns
3.9 Vp-p
5
IC1305
ya
(XOUT)
1 V/DIV, 50 ns/DIV
59 ns
2 Vp-p
• IC Block Diagrams
– MAIN Board –
IC001 SDP2014HN/V102
I.C. 20
VSSD 21
VDDD 22
VSSD_IO 23
SDA 24
FM_IN_P 6
VDDA_RF 7
VSSA_RF 8
VDDA_IFADC 1
VSSA_IFADC 2
FM_CAP 4
FM_IN_M 5
VBGP 3
AM_IN_P
9
AM_LNA_CAP
10
I.C.
11
I.C.
12
I.C.
13
I.C.
14
I.C.
15 16
I2S_BCK 18
I2S_WS 17
I2S_SD_1 19
I2S_SD_0
FM
FRONT-END
AM
FRONT-END
A/D
CONVERTER
STEREO D/A
CONVERTER
I2C
POWER
IC CONTROL
UNIT
XTAL
OSCILLATION
DIGITAL CONTROL
OSCILLATION
DIVIDERS
DIGITAL
TUNING
SYSTEM
RADIO
PROCESSING
I2S INPUT
BUFFER
I2S OUTPUT
BUFFER
AUDIO
PROCESSING
XTAL_IN
20
32
VSS
31
GPIO_0
20
28
DAC_R
29
DAC_L
30
GPIO_1
20
27
GPIO_2
20
26
SCL
20
25
IC002 BU33UC3WG-TR
2 GND
1 VIN
VOUT 5
VOLTAGE
REFERENCE
3 STBY
NC 4
STANDBY
OVER CURRENT
PROTECTION
THERMAL
SHUTDOWN
+
–
IC304 TCB501HQ (Z)
OFFSET
DET
1
STBY
STBY
4
OUT1 (
)
7
PW
-GND1
8
OUT1 (+)
9
PW
-GND2
2
REPPLE
10
IN1
11
IN2
12
PRE-GND
13
IN4
14
OUT2 (
)
3
OUT2 (+)
5
VDD2
6
IN3
15
OUT3 (+)
17
PW
-GND3
18
OUT3 (
)
19
VDD1
20
OUT4 (+)
21
MUTE
22
OUT4 (
)
23
PW
-GND4
24
AC-GND
AC-GND AC-GND AC-GND AC-GND
16
H-SW
25
OFFSET
DET
H-SW
MUTE
IC201 LV56851UV-XH
AMP
1
AUDIO
4
VCC2
7
VCC1
8
SYS
9
GND
2
SCL
10
VDD
11
SDA
12
RSTB
13
BDET
14
ILM
3
CD
5
ACCIN
6
ACCDET
15
+ – + – + –
+ –
CTRL
+ –
VREF
VREF
VREF VREF VREF
AMP_EN
VREF
OVP
BDET
+
VREG
VREF
UVDET
TSD/
TWARN
OVDET
I2C-BUS
CTL
5.1V
1.25V
OVP
TSD
UV
OV
RESET
–
+
VDD
VDD
FILT
OVP
OVP
ILM_EN AUDIO_EN CD_EN
SYS_EN
VDD
VDD
ALL OUTPUT OFF EXCEPT VDD OVP
ALL OUTPUT OFF TSD