Onkyo TX-8050S Service Manual page 29

A B
PRINTED CIRCUIt BOARD VIEW-12
U004
DISPLAY BOARD BADIS-0723
1
GNDDIS
FLAC1
VH
FLAC2
GNDDIS
2
+5.2VDG
DGND
LEDZONE2
LEDPURE
LEDSTBY
KEY0
KEY2_2
3
4
5
DIP
C D
B-Side QPWBCDIS0723B1
QPWBCDIS0723B1
25140723A
QPWBCDIS0723B1
25140729
25140726 25140726
QPWBCDIS0723B1 QPWBCDIS0723B1
B side view from A side
E F
C2067
Q2013
1.+15V
1.UPORT_R
2.GNDZ2
2.GNDUP
2.DET2 1 3.-15V
1 3.UPORT_L
3.UPTTXD 4.+BDG
4.GNDZ2
4.UPTRXD 5.+BDG
5.Z2OUT_R
5.UPTRST 6.PGND
6.GNDZ2
6.UPTSCL 7.PGND
7.Z2OUT_L
7.UPTSDA
DGND
+5.2VDG
13.VSW1C
14.VSW1B
15.VSW1A
16.VSW2C
17.VSW2B
18.VSW2A
R2021
19.VDET
21.VMUT
R2000
22 C2001
C2025 C2017
1
C2009
R2006 1
C2000
R2031 R2028
R2015
C2035 C2032
R2003 C2020
R2040
R2004
C2006
R2005
C2004
C2058
C2057
R2007
Q2005
R2034
R2001
R2027
1
C2018
C2005
R2024
R2019 R2032
C2007
C2008
C2022 C2033
R2002 C2036
C2037
C2048
R2020
C2051
C2047 R2042
C2034
C2050
R2043 Q2004 Q2001 Q2009 Q2003
C2068
L2000
C2069
R2048
L2013 L2012 L2011
G H
~FLDRST
~FLDCS
FLDCLK
FLDSDO
+5.2VDG
+5.2VDG
DGND
DGND
+3.3VMPU
+3.3VDIS
VOLA
VOLB
SELA
SELB
BASS
TREBLE
BALANCE
KEY0
KEY1
KEY2
~KEYINT0
~REMIN
LEDSTBY
LEDPURE
LEDZONE2
LEDZONE2
QPWBCDIS0723B1
25140728
C2028
C2054
C2055
Q2002 Q2007
1
1
R2041
Q2006
R2037
Q2010
TX-8050