Onkyo TX-NR545 Service Manual page 60

1
Tuner section
D
MODEL NO. TX-SR343/444,HT-R494
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
1
2
3
1
2
B
A
1
2
SCHEMATIC DIAGRAM (PART-10) TUNER SECTION
SCHEMATIC DIAGRAM (PART-11) TUNER SECTION
NM
C4
R1
*
100D
C1
L3 C12
C5
330n 090D 101J
RFGND
7
1 6
2
3 4
8
L5
K7-D
P1 Q1
D/J NTM-1PDSC437 RZ5B801-0001E2
M NTM-1PDSC438 RZ5B801-0002E2
2
3 4
NM
R12
* TEST PARTS
R14
L2
0
0
L1 R22
VDDRF
0
0
C3
R11
VDD2 +3.3V
0
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
R9 100
0
6 15
LRCK/LOUT
ARF1
7 14
R4
BCLK/ROUT
ARF2
BK1608HS601-T
8 13
R8 100
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
+3.3V
C7 105K
LOUT
ROUT
GND
C8 105K
DA
CK
RDSI
5
6
D
C
B
A
6