Onkyo TX-SR444, Service Manual

Page: 52 / 108

Schematic Diagram
5 4 3 2 1 6
D
C
A
B
D
C
A
B
5 4 3 2 1 6
Tuner section
CK
RDSI
ROUT
LOUT
VDD2
VDDRF
DA
+3.3V
+3.3V
VDD1 RFGND
GND
GND
105K C8
106K
C9
473K C5
101J
C1
220J
C2
105K C7
100D
C4
C1
0
NM
C1
1
NM
332K
C3
222K
C6
104K
C13
090D
C12
P
1
01A
N
S
C
T
-7P
2100
1
2
3
4
5
6
7
*Q1
RZ5B801-0001E2
GND1
1
IIC/RDSI
8
X1
18
CP1
17
IISD
16
14
BCLK/ROUT
FRF1
4
CP2
3
ARF2
7
ARF1
6
VDDRF
2
GNDRF
5
15
LRCK/LOUT
X2
19
VDD2
20
DA
13
GND2
12
VDD1
11
LA
9
CK
10
L4
100n
L3
330n
BK1608HS601-T
R3
BK1608HS601-T
R4
K7-D
L5
1
2
3 4
6
7
8
X1
12M
H
z
L1
0
R12
NM
L2
0
R1
NM
R10
0
R11
0
R8 100
R5
10k
R6
4.
7k
R7
4.
7k
R2 100
R9 100
P2
N
T
M
-2P
D
M
L439
1
2
*P
1
1
2
3
R1
3
0
R14
0
R2
1
0
R22
0
*
*
*
*
RZ5B801-0002E2
RZ5B801-0001E2
Q1
M
D/J
P1
NTM-1PDSC437
NTM-1PDSC438
T
EST
PAR
T
S
TEST PARTS
MODEL NO. TX-SR343/444,HT-R494
SCHEMATIC DIAGRAM (PART-10) TUNER SECTION
MODEL NO. TX-NR545/646/747,DTR-20.7/30.7/40.7
SCHEMATIC DIAGRAM (PART-11) TUNER SECTION
BARF-1738:TX-SR343/444,HT-R494
BARF-1731:TX-NR545/646/747
BARF-1730:DTR-20.7/30.7/40.7
T
O
BAAF
-1
7
1
2
(PAR
T
-4
)
T
O
BAAF
-1
7
2
0
(PAR
T
-4
)
(T
X
-S
R343/
444,
HT
-R494)
(T
X
-NR545/
646/
747,
DT
R-
20.
7/
30.
7/
40.
7)