JVC AV-48WP30 Service Manual page 81

CIRCUIT DIAGRAMS
MAIN PWB CIRCUIT DIAGRAMS [1/12]
! TU101 QAU0206-001
U/V TUNER
L101 0
QRN143J-0R0X
R102 0
R103 0
C101 C102 C103 C104
470/16 10/50 10/50
X
CN0E1
CE41507-001P
LINE FILTER PWB
F_MONO
C110
X
IC101
X
NC
A5V
5V
9V
BS_5V
BS_5V
5V_HD_G
5V_HD_G
L_SWOUT
L_SWOUT
R_SWOUT
R_SWOUT
21V
21V
HDD_DIN
HDD_DIN
HDD_CLK
HDD_CLK
HDD_REQ
HDD_REQ
M7V
M7V
SCL0
SCL0
SDA0
SDA0
14V
14V
5V_HDMP
5V_HDMP
TV_V1
TV_V1
TV_V1GND
TV_L1
TV_L1
TV_R1
TV_R1
C/N_AFT1
C/N_AFT1
AFT2
AFT2
12V
BS_POW
BS_POW
AMP_MU
AMP_MU
S_MU
S_MU
AMP_PRO
AMP_PRO
L_BBEOUT
L_BBEOUT
BBEAMP_G
BBEAMP_G
R_BBEOUT
R_BBEOUT
BBE_SW
BBE_SW
TU_5V
TU_POW
TU_9V C974
Y157
0
Y241
R117
0
0
R104 QRN143J-0R0X
0
C/N_AFT1
R105 C105
X X
R124 X TV_L2
C106
X TV_L1 R125 X TV_R2
4.1V
C107 TV_R1
X
RECEIVER PWB
TV_V1
C108
10/50 MPX_GND
MPX CN005 QGB1505J1-40
AGCMU1
BT30V
L102 0
QRN143J-0R0X
MAIN_BUS
C109
X
PS
BS DIGITAL
AUDIO INPUT
ONLY AV-28A2
J598
C598
X
R598
X
X
L
D598
C599
X
X
R
D599
R599
ST X
X
BIL
TU101 18
Y971
1
0
R971
Y974 Q971
X
0 X
SW
R972
X
R970
Q972
X
R973 X
X SW
C971
X
R974
X
Y972
0
R975
X
Q973
X
SW
R976
X
Q974 R979
X X
SW
R977
X
Y973
C972 X
X
R978
X
IC971
X
5V REGULATOR
X C973
D971
X
X
No.51914
AV-48WP30
AV-48WP30
C623
MAIN_BUS
C624
C621
X
R622
BP
X
C626
SSB-0R251A-M2
X
R640 CK
X
C627
C622
X
X
BP
R625
C628
X
X
R626
C629
X
Y107 X
Y108 X
RECEIVER PWB
Y109 X
R119 X
CN010 QGB1505J1-40
R120 X
R121 X
R122 0
MAIN PWB
(1/12)
(U/V TUNER/AUDIO)
SSB-1051A-M2
2-5 2-6
IC621
X
C630
TONE&VOL X
R629
X CK
X R628
4.3V 0V
FT1 FB22 X
C641
X X
R642
4.3V 4.3V R641
C631 BP
X
FT2 FB21
X
X
R631
X C632
4.3V
IN1 FB11
X
C625 R621 4.3V 4.4V 4.4V 4.4V 4.4V 4.4V 4.4V 4.4V 4.4V
X
X
4.3V
R630
LOUD1 FB12
R624 4.3V X
X 4.3V C633 X
IN2 OUT2 4.3V
R623 X
4.3V
4.3V
LOUD2 OUT1
0V
8.8V
CHIP VCC
C634
X
X
0V 0V R651 4.4V
FILTER SCL X
R627
R632 R633
X
X X
4.4V
R652
GND SDA C651
X
X
BP
R635 R634
X X
R618 0
R644
0
SSB-0R251A-M2
X
NOTE
*1 : 2SC2412K/QR/-X
:
*2 2SA1037AK/QR/-X
*3 : MA111-X
*6 : MA3062/M/-X
:
X NON MOUNT
BW : BUS WIRE
No.51914
R_BBEOUT
C646 C645
X X
C647
X
C642 C643
X
R643 X
MY X MY
IC641
X
BBE
8.8V 0V
4.4V 4.4V 4.4V 4.4V 4.4V 4.4V 8.8V 8.8V 4.8V
R645 X
R647 X
C652 R653 C653
X X X
R649
MY MY
X
C648
X