Read Sony CDX-GT929U / CDX-GT970US Service Manual online
CDX-GT929U/GT970US
CDX-GT929U/GT970US
36
36
• IC Block Diagrams
IC401 BD3442FS-E2 (MAIN Board (1/4))
1
2
BUS-R
100k
100k
100k
100k
100k
100k
250k
250k
250k
BUS-L
TU-R 3
4
TU-L
5
CD-R
6
CD-L
7
AUX-R
8
AUX-G
9
AUX-L
10
DS32
11
DS11
12
DS22
13
EBIAS
14
DS21
15
DS11
16
DS31
26 OUTF1
27 VCC
VCC
VCC2
28 MUTE
29 SCL
30 SDA
31 GND
32 FIL
INPUT
SELECTOR
VOLUME1
/MUTE
VOLUME2
I2C
BUS
LOGIC
TREBLE
/BASS
/MIDDLE
SPECTRUM
ANALYZER
FADER
25 OUTF2
24 OUTR1
23 OUTR2
FADER
FADER
22 OUTS1
21
20
OUTS2
19
ADJ
18
SOUT
17
DATA
CLK
FADER
FADER
LPF
EFFECT
INPUT
GAIN
FADER
IC402 NJM2792V(TE2) (MAIN Board (1/4))
1
2
3
6
5
4
17
18
19
20
7
10
15
16
12
11
14
13
8
9
LIFT AMP
LIFT AMP
CIN (L)
OUT (RL)
RL-
RL+
VCC
RR+
RR-
OUT (RR)
CIN (R)
GND (R)
COUT (R)
OUT (FR)
FR-
FR+
REF
FL+
FL-
OUT (FL)
COUT (L)
GND (L)
SIGNAL AMP
FRONT-RIGHT
REAR-RIGHT
FRONT-LEFT
REAR-LEFT
SIGNAL AMP
SIGNAL AMP
SIGNAL AMP
IC551 TDA7333013TR (GT929U) (MAIN Board (1/4))
VDDA
INTERPOLATOR
RAM
BUFFER
&
CONTROL
LOGIC
TEST LOGIC
&
PIN MUX'S
I
2
C/SPI
INTERFACE
BAND PASS
FILTER
SIGMA DELTA
CONVERTER
SINC4
FILTER
REF3
REF2
REF1
VSS
VDDD
RESETN
TM
1
MPX
16
CSN
SDAOUT
RDSREG
3
INTN
MPX
SINC4REG
SDAIN
SCK
SCK
SPI
TESTREG
TESTREG
14
2
3
4
5
6
7
8
INTN
15
SA
13
SDA
12
SCL
11
OSCILLATOR
XTO
10
XTI
9
RDS
DEMODULATOR &
SYNCHRONIZATION
2
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