Bass Treble Balance; Input Selector - Onkyo TX-8050S Service Manual

A B
SCHMATIC DIAGRAM - 8 / 9 (SD - 8 / SD - 9)
SD - 8 : USB SECTION
SD - 9 : DISPLAY SECTION
1
BADIS-0723
2
1 GND DIS
2 FLAC1
3 VH
4 FLAC2 C7001 223K
5
R7000 220
3 +43.8V Q7007
2SA1162-GR
KRC107S
Q7008
4
BASW-0724
5
Q7005
nc
6
7
8
TX8030 / TX8050
C D
Q7000
16-BT-165GINK
C7000
223K
R7002 R7003
10 10
KTC3875-GR KTC3875-GR
Q7001 Q7002
1 R7012 1 R7013
100 100
D7002
1SS352
+5.3V
R7044
220 TX-8050
270 TX-8030
Q7004
DTC123JKA
LEDPURE
LEDZONE2
LEDSTBY
KEY0
1 1 +5.2VDG
2 2 DGND
3 3
4 4
5 5
KEY0_2 6 6
7 7 KEY2_2 270
R7046
R7048
KEY1
270
BAETC-0725
1
GNDDG
2 2
THERMAL O
R7056
3 KEY2
+3.3V
270
PRESET PRESET
TX-8050 ONLY
E F G
C7002 223K
R7001 220
R7004 220
R7005 220
R7008 3.3K +3.3V
R7010 3.3K
VOLUME ENCODER
R7015 R7016
10K 10K
R7017 R7018
10K
10K
4 5
S7000
EC12E2425WITH_WASHER
KTC3875-GR
LBC2518T2R2M
L7000 Q7003
3 2
+3.6V
R7038
100
3
2
1
R7043 U7000
KSM-603TE5B
1K
330 R7047
R7050 R7051 R7052 R7053 R7054 R7055
R7049
330
470 560 820 1.2K 2.2K 3.9K
R7057 R7058 R7059 R7060 R7061
330 470 560 820 1.2K
H I
BAETC-0718
E1001
BAETC-0718(USB) SECTION OPTION
ADD/DEL MODEL NAME
ADD TX-8050
DEL TX-8030
USB
XM7A-0441
L1002
BLM18PG121SN1D
CHASSIS
6
L1003
4 GND
GND
3 1 8 DATA+ BLM18PG121SN1D
D+
2 2 7 DATA-
D-
1 3 6 +VBUS L1004
+V
NC
Q1001
5 4 5 BLM18PG121SN1D *
3 4
* * *
NC VIN
P1007 L1005
2
DLP2ADN900HL4L VSS
1 5
CE VOUT
FLDRST
FLDCS
FLDCLK
FLDSDO
+5.2VDG
+5.3V
DGND
+3.3VMPU
+3.3VDIS
VOLA
VOLB
SELA
SELB
+3.3V
BASS
TREBLE
BALANCE
KEY0
KEY1
KEY2
KEYINT0
REMIN
LEDSTBY
LEDPURE
LEDZONE2
JL702A CN09
CN09
JL702B
BASW-0729
C7025 C7027
nc 223 nc 223 nc 223 C7029
C7024 C7026 C7028
R7035 R7036 R7037
470K 470K 470K
1 3 1 3 1 3
R7039 4 R7040 4 R7041 4
20KB 20KB 20KB
5 5 5
RTRIM 6 RTRIM 6 RTRIM 6
nc nc nc
C7032 C7033 C7034
BASS TREBLE BALANCE

INPUT SELECTOR

R7026
R7027
10K 10K
R7033 R7034
10K
10K
4 5
S7002
EC12E2425WITH_WASHER
TX-8030 / TX8050
J K
5
4
3
FROM SD-12 H-1 (DSP-2 PWB)
2
1
*
(PH)
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1