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1
Tuner section
MODEL NO. TX-SR343/444,HT-R494
D
MODEL NO. TX-NR545/646/747,DTR-20.7/30.7/40.7
BARF-1738:TX-SR343/444,HT-R494
BARF-1731:TX-NR545/646/747
BARF-1730:DTR-20.7/30.7/40.7
C
NM
R1
*
L3
C12
1
330n
090D
2
3
B
1
2
D/J
M
A
1
2
SCHEMATIC DIAGRAM (PART-10) TUNER SECTION
SCHEMATIC DIAGRAM (PART-11) TUNER SECTION
C4
100D
C1
C5
101J
RFGND
7
1
6
2
3
4
8
L5
K7-D
P1
Q1
NTM-1PDSC437
RZ5B801-0001E2
NTM-1PDSC438
RZ5B801-0002E2
2
3
4
NM
R12
*
TEST PARTS
L2
0
L1
R22
VDDRF
0
0
C3
VDD2
332K
GND
1
20
GND1
VDD2
2
19
VDDRF
X2
3
18
CP2
X1
473K
4
17
FRF1
CP1
R10
5
16
VDD1
GNDRF
IISD
6
15
0
LRCK/LOUT
ARF1
7
14
BCLK/ROUT
ARF2
BK1608HS601-T
8
13
IIC/RDSI
DA
C6
9
12
LA
GND2
222K
10
11
CK
VDD1
C13
*Q1
RZ5B801-0001E2
104K
R3
BK1608HS601-T
R2 100
3
4
5
Schematic Diagram
R14
0
R11
+3.3V
0
R9 100
C7
105K
R4
R8 100
C8
105K
5
6
+3.3V
LOUT
ROUT
GND
DA
CK
RDSI
6
D
C
B
A
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