31
31
HCD-EA20
– AUDIO SECTION –
• SIGNAL PATH
: AUDIO
: AUX IN
: TUNER
•
R-ch is omitted due
to same as L-ch.
AV SEL0 – AV SEL2
ADC_DATA
BCK
LRCK
ADC_DATA, BCK, LRCK, XCK
84 PLL_DI
81 PLL_CLK
83 PLL_CE
80 TUNED
Q123
J102 (2/2)
J171
Q122
IC121
AUDIO INPUT
SELECTOR
IC352
A/D CONVERTER
Q103
AMP
R-CH
DO
CK
CE
TUNED
FM-DET
L-CH
R-CH
DI
TUDO
TUCLK
TCE
TUNED
TUDI
RDSC
RDSD
R-CH
R-CH
R-CH
TUDO
TUCLK
TCE
TUNED
TUDI
XCK
RDSC
RDSD
AV
SEL3
AV
SEL1
AV SEL1
AV SEL2
AV SEL0
AV SEL3
DATA1
DATA2
DATA3
CLK
VIDEO
AUDIO IN
AUDIO IN
L
R
L
R
Q291
DET AMP
X291
4.332MHz
IC291
RDS DECODER
Q112, 212
MUTING
Q507
MUTING
CONTROL
J101 (2/2)
VIDEO
AUDIO OUT
L
R
Q121
ATT
Q972
MUTING
CONTROL
Q521, 522
MUTING
Q551, 552
MUTING
Q511, 512
MUTING
IC522
ELECTRONIC
VOLUME
IC552
ELECTRONIC
VOLUME
IC502
ELECTRONIC
VOLUME
DATA3
CLK
45 DATA1
46 DATA2
47 DATA3
41 LRCK
40 BCK
IC521
LPF
IC551
IC501
IC302
D/A CONVERTER
MDI
MC
ML
FL
FR
C
SL
SR
5
7
3
1
5
3
5
7
3
1
SW
FL
FR
C
SL
SR
SW
DATA1
DATA0
DATA3
DATA2
LRCK-ZIVA
BCK-ZIVA
XCK
DM-L
DM-R
FL
FR
C
SL
SR
SW
DATA2
CLK
DATA1
CLK
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299