No.51944
No.51944
5
AV28CH1EUS
AV28CH1EUB
AV28CH1EUS
AV28CH1EUB
2-7
2-8
MAIN PWB CIRCUIT DIAGRAM
[2/2]
*6
Q607
5V
100/50
C628
270
R107
NQR0389-003X
K102
0.0047
C115
X
R651
R
TV1
BBE_BOOST
X
9V REG
IC605
X
-9V REG
IC606
*2 MUTING
Q602
X
C611
X
C603
TA8246AH
POWER AMP
IC601
10/50
C629
1/50
C616
1/50
C618
X
C617
TU1_SW0
X
C602
H/P_R
VTV1
.22/50
80%
C630
X
C605
X
R646
.22/50
80% C642
X
R638
TU1_SW1
X
CN00S
X
C650
X
J001
1000/35
QETM1VM-108
C648
1000/35
QETM1VM-108
C649
X
80%
C631
X
C635
X
Y611
X
Y610
X
Y661
LTV1
SD
A1
A.MUTE
X
LPF
IC662
TU1_AFC
X
Y662
IC662
5.6k
R601
H/P_L
X
D621
X
Y612
SCL1
A
UDIO_MUTE
*3
D615
X
Y613
AMP_MUTE
AG
C
R_SUB
2p
CH
C119
0
Y608
X
Y606
X
Y607
L_SUB
A_C_VCC
NQR0389-003X
K101
NQR0389-003X
K001
X
D617
5.6k
R603
X
CN008
47k
R605
27k
R606
*3
D614
L/R_CENT
0
CH
C679
0
Y603
2p
CH
C120
0
CH
C678
0
Y604
X
R632
820p
CH
C111
47p
CH
C112
READ
Y
47p
CH
C113
18p
CH
C114
X
C654
ST
A
TUS
D
ATA
CLOCK
X
R633
X
C626
PO
W_ON/OFF
X
5V REG
IC664
X
CH
C612
X
CH
C622
0
Y664
X
C669
X
C651
X
C670
X
C668
R
L
8V
9V
X
C653
X
C652
1/10 80%
C151
.22/50
80%
C632
X
80%
C633
.22/50
80% C641
1/10
80%
C154
1/10
80%
C129
1/10 80%
C152
0.001
CH
C155
0.001
CH
C156
0.001
CH
C123
0.001
CH
C122
0
80%
C674
0
80%
C673
3.9k
80%
NRSA63J-392X
C680
3.9k
80%
NRSA63J-392X
C686
1/10 80%
C153
BBE_ON/OFF
X
R677
0
Y615
X
R674
X
R676
X
R-
BASS
BASS
R-
L-
L-
BASS
BASS
R
OUT
LOUT
Vcc
SCL
SD
A
L-TRE
L-TRE
BLE
BLE
L-IN
L-LOUD NESS
R-IN
R-LOUD
NESS
CHIP
VREF
GND
IC661
X
C690
X
MUTING
Q615
X
C661
X
C663
X
C662
*2
POWER ON/OFF DET
Q601
X
C664
X
C665
X
R662
X
R663
X
R681
X
R661
X
R644
6.8k
R610
X
C671
X
Y614
.1/16
C107
X
Y663
X
Y668
X
POWER BASS
IC665
0
Y665
X
C667
X
C666
0
R684
0
R687
IC665
X
C672
X
CH
C692
A_SUB_GND
X
Q612
0.0022
C691
X
R608
X
C697
X
D616
MSP_RESET
X
D613
X
R671
X
R670
X
D609
0.0022
C696
X
R682
0
R667
X
R688
0
R669
0
R668
GND1
0
R666
X
CH
C676
X
CH
C677
X
C675
X
CH
C108
X
R664
X
R665
X
MUTING
Q616
X
MUTING
Q617
220/16
C607
X
R695
DTC124EKA-X
MUTING
Q605
*1
MUTING
Q606
X
R694
10/50
C130
0
R693
POWER BASS
IC665
IC665
X
CH
C658
X
R659
X
R696
X
BBE
IC663
X
R679
DTC124EKA-X
MUTING
Q604
X
R680
X
C684
X
C685
X
R648
X
R675
2.2
1/2W
QRK126J-2R2X
R649
X
R657
X
C683
X
R678
0
R656
X
R658
X
C657
X
R672
0
Y667
0
Y666
X
R673
X
C681
X
C682
X
C687
X
C688
X
C689
2.2 1/2W
QRK126J-2R2X
R637
MA3330/L/-X
D619
0
Y669
100k
R609
560
R639
0
Y670
MA3330/L/-X
D620
X
C601
X
C604
X
D605
X
D604
X
C613
X
C615
X
R685
X
R686
H/P_GND
0
Y676
X
C693
X
R683
X
R689
X
C694
0
CH
C695
0
CH
C698
X
C638
X
C639
X
D626
X
D627
0
R654
0
R655
X
Y672
X
Y673
*
R636
X
R645
32V
SCL2
X
R690
X
Y674
SD
A2
X
Y675
X
R699
X
Y601
A_GND
X
Y602
A_M+VCC
A_M-VCC
0
Y605
X
C614
0
Y609
33k
R618
*3
D611
*3
D610
X
C610
5.6k
R620
220/16
C606
X
R650
X
R643
X
R642
X
D612
X
AMP(HP)
IC604
X
R635
X
R631
X
R647
X
R634
X
R697
8.2k
R602
8.2k
R604
X
K601
X
K602
X
C647
X
C646
X
D601
X
MUTING
Q603
X
R607
X
R660
X
R698
2200/35
QETM1HM-228
C634
100k
R619
A_GND
0
Y681
X
Y677
X
Y678
X
Y684
*3
D602
X
Y101
X
Y680
X
C627
X
D628
X
Y679
X
Y682
X
Y683
X
R600
X
R617
X
C660
X
C643
X
C659
X
C640
X
R692
X
R691
X
R159
X
R160
10
NQL092K-100X
L004
X
R161
X
R162
X
IC603
X
R623
X
C621
X
C637
X
R622
X
Q614
X
C
620
X
R624
X
R625
X
R628
X
IC602
X
R621
X
R653
X
C608
X
C619
X
R630
X
R641
X
R629
X
Q608
X
C624
X
C625
X
R626
X
C645
X
R627
X
D622
X
R652
X
D606
X
C636
X
D625
X
C655
X
D607
X
D623
X
D624
X
C623
X
C644
X
R640
X
D618
X
D603
X
D608
X
R613
X
R614
X
R615
X
C609
X
MUTING
Q613
X
R616
X
Q610
X
R612
X
Q609
X
HS603
X
R611
X
INV.
Q611
X
CN111
X
C656
MSP3415DQGB3GHX
MULTI SOUND PROCESSOR
IC101
CE42546-001Z
X101
0.01
C118
0.01
C117
.1/16
C101
10/50
C102
*1
AMP
Q101
2.2k
R103
1k
R104
27
R106
180
R102
1k
R101
18
QQL244K-180Z
L112
22
QQL244K-220Z
L111
10/50
C127
10/50
C125
.1/16
C128
.1/16
C126
10/50
C124
10/50
C105
.1/16
C106
100
R111
0.01
C121
.1/16
C103
NQR0431-001X
LC102
4.7
QQL244K-4R7Z
L102
100/16
C104
100
R110
100
R109
0
QRN143J-0R0X
L101
330
R105
*1
BUFFER
Q102
1k
R108
0.0047
C116
X
R155
X
R157
0
R156
0
R158
X
R152
X
R154
100
R151
100
R153
0.0022
C001
10
QQL244K-100Z
L002
10/50
C002
1000/16
C005
100
R005
10/50
C007
X
R002
.01/50
C006
X
R003
QAU0188-003
TU001
100
R004
X
R001
X
C003
.1/16
C004
27
QQL244K-270Z
L001
X
C011
0
Y001
X
Y002
0
Y003
10
L003
.1/16
C009
10/50
C010
X
Y007
0
Y008
X
Y009
0
Y010
X
Y011
0
R009
X
Y006
0
Y005
0
Y004
X
R006
0
R008
X
C008
9V+
AGC
SCL1
AUDIO_MUTE
SDA1
TU1_SW0
MAIN_R
BBE_ON/OFF
-9V
MAIN_L
TU1_SW1
A_M+VCC
TU1_AFC
SR
AG
C
SD
A1
SCL1
32V
SL
BBE_BOOST
MSP_RESET
CENTRE
CENTRE
-9V
SL
SR
CLOCK
ST
A
TUS
D
ATA
READ
Y
SD
A1
SCL1
L/R_CENT
BBE_BOOST
BBE_ON/OFF
L
BBE_ON/OFF
L/R_CENT
A
UDIO_MUTE
AMP_MUTE
CLOCK
ST
A
TUS
D
ATA
READ
Y
D_MUTE
SDA2
SCL2
SD
A2
SCL2
MSP_RESET
A_M-VCC
R
L
R
MAIN_R
MAIN_L
SCL1
SD
A1
AMP_MUTE
A_M-VCC
VTV1
32V
9V+
A_M+VCC
POW_ON/OFF
PO
W_ON/OFF
D_MUTE
A_GND
TU1_SW0
TU1_SW1
VTV1
TU1_AFC
A_GND
Vcc
RIN
HPF(R)
CR1(R)
BPF(R)
NC
NC
NC
CR2(R)
LPF(R)
ROUT
VREF
Vcc
GND
LIN
HPF(L)
CR1(L)
BPF(L)
CR2(L)
LPF(L)
LOUT
H H/L
L H/L
BBE
ON/OFF
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
A.MUTE
RESETQ
NC
NC
NC
NC
DVSS
DVSUP
TP
TP
TP
TP
SDA
SCL
VREF2
NC
DA
C
M
_
R
DA
C
M
_
L
NC
VREF1
SC1_OUT_L
SC1_OUT_R
NC
AHVSUP
CAPL_M
AHVSS
AGNDC
SC2_IN_L
SC2_IN_R
ASG1
SC1_IN_L
SC1_IN_R
VREFTOP
MONO_IN
AVSS
A
VSUP
TO
N
E
/VO
L
.
D_MUTE
NC
K102
TO DOLBY PWB ASSY
ANA_IN-
TESTEN
XT
AL_IN
XT
AL_OUT
NC
D_CTR_OUT1
D_CTR_OUT0
ADR_SEL
ST
ANBY
SL-IN
SL-IN
Vcc_G
SMF-1008A-U2
R
18.432MHz
NC
L
NC
NC
MAIN PWB
IF1
AGC
NC
IF2
PB
R
GND
TU2
NC
MUTE
Vcc
R
L
L
SCL
SDA
ADR
NC
IFIN
GND
BT
5V
VIDEO OUT
RF AGC
AFC
SW1
SW0
SIF
AM
SR-IN
SR-IN
GND
GND
L-OUT
R-OUT
9V
9V
GND
GND
GND
GND
C-OUT
SL-OUT
SR-OUT
H/P-L
H/P-R
GND
GND
L-IN
R-IN
9V
L
9V
-9V
-9V
BBE ON/OFF
L/R.C SW
LO
W BOOST
5V
5V
SCL1
SD
A1
D-5V
D-5V
D-GND
D-GND
DSPCLK
DSPST
A
TUS
DSPD
A
T
A
DSPREAD
Y
GND
GND
GND
GND
GND
GND
OUT
+Vcc
+Vcc
MUTE
MUTE
-Vcc
-Vcc
-IN
-IN
+IN
+IN
OUT
IN_MUTE
IN_MUTE
SP-L
SP-R
0
X
BW
*1
*2
*3
*4
POWER AMP
POWER AMP
TWEETER
TWEETER
GND
GND
T
O
SPEAKER
*5
*6
Vcc
*7
GND
*8
:
:
:
:
:
:
:
:
:
:
:
OPTION(NON MOUNT)
IM-BW
NRSA63J-0R0X
2SC2412K/QR/-X
2SA1037AK/QR/-X
MA111-X
MA3120/M/-X
DTC124EKA-X
DTA124EKA-X
2SC1740S/QR/-T
2SA933AS/QR/-T
NOTE
C
C
GND
GND
C
R
SC_OUT
(2/2)
8V
3.7V
0V
0V
0V
1.6V
4.8V
4.8V
3.6V
4.8V
0V
2.6V
3.7V
1.6V
0V
0V
0V
0V
1.4V
4.9V
3.7V
1.4V
4.8V
0V
2.2V
6.5V
2.7V
8.9V
5.8V
2.1V
4.5V
4.5V
4.5V
4.5V
4.5V
4.5V
0V
0V
0V
8.9V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
4.4V
-0.1V
0V
0V
1.2V
0V
0.1V 2V
2V
0V
8.5V 0V
12.3V26.1V 0V
0V
12.4V
4.9V
5.3V
4.8V
0.1V
25.4V
25.4V
0V