JVC AV-48WP30 Service Manual page 91

MAIN PWB CIRCUIT DIAGRAM [11/12]
MAIN PWB
R_BBEOUT
BBEAMP_G
L_BBEOUT
9V
BS_5V
AMP_MU
12V
BBE_SW
AMP_PRO
S_MU
S_MU
A_MU
AS_MU
CN00V
X
(11/12)
(SOUND PROCESS)
SSB-1051A-M2
D667
C697
*3
47/25
R614
100k
R615
C695 C696
56k
X 10/50
R613
Q673
1k
*2
R612 MUTING
56k
Q672 R616
D668
*1 15k
*3
R611
MUTING
56k
D669
*3
CN00T X
No.51914
AV-48WP30
AV-48WP30
C663
R661
0
0
R657
X R662
C664
X
X
C661
X
IC662
Vcc
X
D661 C662
AMP
X X
HPF
GND
R664
C666
X
X
N N
R663
C665
0
0
C686
R695
X
Vcc
IC663
R607
R608
X
X
X
AMP
L+R&LPF
GND
C692
X
C683
R609
X
R687
X
C684
X R610
R686
X
D672 D665 D666
X
X X
2-25 2-26
IC661
AN5277
AUDIO AMP
AN5277 pin No.
1 2 3 4 5 6 7 8 9
AN7585 pin No.
14.7V
C667
C669
R665 R667 R658
10/50
1
2.2k 2.2K 10k
C668
R666 Y661 0
100p
4.7k Y662 0
CH
Y663 0
Y664 0
C671
C670 R669
100p C672
10/50 4.7k
CH 1
R659
R668 R670
10k
2.2k 2.2K
C688
R697
X
X X
C687 R660
R696
X X
X
CH
R604
X
Q663
X
SW
X
C693
Q664
X
X
Q667
R603 R601
SW
X X
X X
MUTING
R602
C694
Q665 X
X C691
X
X
SW
Q666
X
SW
R682 R680
10k 8.2k
R681
D671
47k
X
Q668 C680
DTC144EKA-X 10/50
Q669
SW
*1
R656 MUTING
D670
0
X
No.51914
NOTE
*1 : 2SC2412K/QR/-X
*2 : 2SA1037AK/QR/-X
*3 : MA111-X
*6 : MA3062/M/-X
X : NON MOUNT
BW : BUS WIRE
C674
10 11 12
1000/50
QETM1HM-108
15V
30.9V
R699
C690 CN0M1
X
X
BASS X
1/2W
BASS
NC
BASS_GND
R674
L_OUT
L
L_GND
RECEIVER
R_OUT PWB
R
R_GND
C678
R673
1000/25
CN00M
C677
1000/25 QGA2501C5-04Z
R674
1k 1/2W
QRJ146J-102X
R673 CN0AG
1k 1/2W
X
R672
QRJ146J-102X
2.2 1/4W
AU_VCC
QRJ146J-2R2X
NC
C676
AU_GND
0.12
TF
AU_VCC
AU_GND
R677
X
R691
100k
BLEV1
R676
X R675
BLEV2
X
HP_MU
C679
X
Q671
X
MUTING