JVC InteriArt AV-2986ME Service Manual page 109

MAIN PWB CIRCUIT DIAGRAM [AV-29MS26] (1/2) SHEET3
CN00R
IC481
L401
R482
C481 R485
68K R487 C483
.22 33K
150K .22
C485
C482 R483
R486
6.8K
.22 3.3K C484
.22
Q483
R496
R494 R490 4.7K
5.6K
10K
R497 C490
2.2K 470/16
R493
C488
22K 560p Q484 R498
Q482
*2 22K
*2
Q481
C487 *1
R491 R499
22/35
68K 47K
R492
C489
1.5K
22/50
R984 R983
47K 3.9
R985
4.7K
R769
10K
R986
4.7K
Q984
Q704
*1
*1
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
MAIN PWB(2/2)
3.3V
SHEET4
NECK
H_DRIVE
HFB
ABL
EW
P_ON/OFF
VDRA+
C_MUTE
VDRB-
PROTECT
32V
TU001
K103
X
C101
R101 C111
.0047
10 470/16
C110
R005 CF101
.1
75 X
L101
C001 C002
.01 10/50
L002
R107
4.7K
C004
470/10
D102
R001 C003
220 .1
C007 56p R002
220
C008 56p
Y004
0
R003
3.9K
Q103
*5
C005
R004 C006
.0022 33/50
27K
NOTE) 1. Refer to the part list for the part number of IC701 and IC702.
2. Refer to page 2-25 for voltages of this circuit diagram.
3. Refer to page 2-26 for waveforms of this circuit diagram.
FRONT CONTROL PWB
ADJUSTMENT
CONNECTOR
CN00C
5V
SDA1
SCL1
BL_GND
12V
Q706 D714
5V
R755
D707 R794
C778 2.2K 1.2K
*3 C792
47/35
.1
R740
C777 15K
R760
.1
100
SCL0 Q708
Q705
*2
SDA0
R761 100
Q707
R796 *1
R783
1K R795
3.3V_STB
100K 10K
Q791
*1
PW
SCL0
SDA0
C793
R790 R793 100
4.7/50
1K
P_ON/OFF
R982 R981 D713
47K 3.9
V1.8A
Q982
*1 1.8V
C701
1.8V .22
Q983 C702
.22
C982
220/10 R792 L703
CONT
33 *4
IC701
8V
*
A_VCC
A_GND
C705
7p
5V
C706
5V
7p
12V
X701
X
3.3V
R756
NECK GND
10K
NECK
H_DRIVE
L718 C785 C784
*4 1/50 X
HFB CONT
ABL
EW
C707 C708
.1 100/16
P_ON/OFF
C710
VDRA+ C709
6800p .01
C_MUTE
R701
VDRB- 12K
PROTECT
C711 C712
2.2/50 .22
C713 10/50
4.5/OTHER
C714 .022
3.58/OTHER
EW R702 470
C715 .001
VDRB- R703 100
SF102
C716 .001
C106
VDRA+
18p
R704
100
Y008
X
SF101 C718
.15
R705
39K
C107
.01
Y003
X
C719 .01
R706 220
C720 .001
R707
56K
R708
100K
R709
1M
D701
*3
SDA1
SCL1
Q701
X
C722
X
CF702 CF701
X X
Y814
X
Y812
X
Y809
K702 X
Y727
Y711
BW
K601
Y720
Y708
X
Y714
K107 Y701
X
Y713
Y304
K104
X
Y712
Y010
Y011 Y012
K703
Y009
GND GND GND GND GND GND
GND GND
FRONT CONTROL PWB
SHEET6 SHEET6
CRT SOCKET PWB
CN001 CN002
CN001
CN00T
CN002
Y707
X
Y709
0
R753
1.2K
Q612
*1
C766
.22
C764
.1
C761
.1
C762
100/16
C760
.22
C758
.22
R735
100
D715
R734
100 *3
R733 D716
100 *3
R797
D717
68K
R732 *3
1K
R798
C757 47K
560p C717
1/50
C756 R731
.1 1k
C779 C755
10/50 220/16
R779 C753 C754
100 .1 .1
R780
MAIN MICRO COMPUTER/ C752
100
.1
IF VIDEO RGB SYNC DEF PROCESS
R781 C751
100 .1
R782 1.2K
R729 X
C780
.1
C786 0.1/16
C750
X
C787
C749
X 0.1/16
C788
C748
X 0.1/16
C746
L716
.1
*4
R728 100
R727 10k
R726 27K
R725
R724 1K
R778 X
R723
R722
470
470
C797
X
P_R R629 2.2K
R766
* R631 X
R767 R630 2.2K
X
D601 *3
D607 *3
C662
10/50
Y601 X
D603
Y602 X *3
C607
220/16
R608
X R609
Y608 C608
27K
220/16
Y610
X
!
Y611
CP650
X
R616
CN00M
X
BASS PWB
SHEET7
CN00M
(No.YA447)2-9 2-10(No.YA447)
SHEET5
CN100T
D341 *3
R341
D342 *3
0
C1
D343 *3
S_V_DET
R344 R345 Y303
Q341 22 1K BW 5V
*2
D345 12V
*3 Y1/CVBS1
Y302
X
C341 GND
220/16
SCL1
L301 SDA1
X
C304 C305
X X
VDO_DET
R319
L305
D301
X X
X L1
C314
C311
C310 X L304
X X X
5V R1
GND
R309 X
C315
R312 X X
R320 R321
X X BASS
L302
Q307
X IC301 CVBSO/PIP
X
R318
X
A_GND
X
C306
C307
X
X
C312
R310 C318 C313
V2/Y
X X X X
GND
PB
GND
R307
X
C302
X
C309
C308
X PR
X
GND
NECK
V
L2
Y
D708 U
*3
K701
L706 R2
*4
GND
PB
GND
GND
V2/Y
PR
5V
V_OUT
L_OUT
GND
R_OUT
47
C615
1000/25
IC601
D602
X
R617 C605
X .22
R601 0
C606
R662 X .22
R602 0
R607
R603 1K
2.2
Y603
R611
10K
R615
Q601 Q602
X
*2 *2
C609 R610
33/50 100K
D608
D609
X X
R623 R620
33K 10K
R621
2.2K
R622 Q607
10K *1
Q608
*1
R624 C613 C617
X 68K 10/50 X
R816
75
LC801
C827 Y801 R801 Y819
0 X 75 BW
D814
*8
Y802
X
D815
*8
VIDEO-1
J801
S-VIDEO
INPUT
C821
R802
0
R803
C822
0
OPEN
J805
X
LC802
D751 R804
Y803 X
*8 75
C828
0
D810
*8
Y804 X
LC803
Y805 X
J802 J802
C829 R805
0 75
D753
*8
Y806 X D811 VIDEO-2
LC804
*8
Y807 X
COMPONENT
D812
C830 VIDEO
*8 0
R806
75 INPUT
Y808
X
C823 J803
C824
R807
R808 C804
100
X 470/16
R809
220
R815
75
Q801
D813
*8
C809
J804
X
R811 82K
OUT PUT
C802
10/50
C803 R812
10/50 390
R813
82K
Q803
Q805
*2
c21269001a.001.1/2
*
Refer to
IC701
NOTE
MAIN PWB ASS'Y(1/2)
SCW-1927A-H2 [AV-29MS26]