Tuner Section - Onkyo TX-8020B Service Manual

A
SCHEMATIC DIAGRAMS-13(PART-13)

TUNER SECTION

1
MODEL NO. TX-8020 SCHEMATIC DIAGRAM
BARF-1450
U0040 TUNER PC BOARD
2
R1
0
C12
L3
1
330n 090D
2
3
1
2
3
4
B
VDDRF
C3
332K
*Q1
C4
1
GND1
100D
2
VDDRF
C1
3
CP2
C5 473K
4
101J
FRF1
RFGND 5
GNDRF
6
ARF1
7
7
1 6
ARF2
8
2
IIC/RDSI
9
3 4
LA
10
8
CK
L5
RZ5B801-001E2
K7-D
R3 100
R2 100
C
(PART-13)
R12
L2
0
L1
0
R11
VDD2 +3.3V
0
GND
20
VDD2
19
X2
18
X1
17
CP1
R10
16 VDD1
IISD
R9 100
0
15
LOUT
14
ROUT
R4
13
R8 100
DA
C6
12
100
GND2
222K
11
VDD1
C13
104K
D E
TUNER SECTION
+3.3V
C7 105K
LOUT
ROUT
GND
C8 105K
DA
CK
RDSI
TITLE DRAWING No.
TX-8020
RC-202985
TUNER SECTION (Part-13)
DESIGN CHECK APPROV
H.Suda K.Ikeda S.Murayama
2013.04.09 2013.04.09 2013.04.09
TX-8020
SHEET
13 14