Circuit Diagrams; Main Pwb Circuit Diagram [Av-2986Me, Av-29Mx76/G] (1/2)(2/2) - JVC InteriArt AV-2986ME Service Manual

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-2986ME, AV-29MX76/G] (1/2) SHEET1
CN00R
IC481
L401
R482
C481 68K R485 R487
33K C483
.22
150K .22
C485
C482 R483 R486
6.8K C484
.22 3.3K
.22
Q483
R496
R494
R490 4.7K
5.6K
10K
R497
2.2K
R493
C488
22K 560p R498
Q482 Q484
22K
*2 *2
Q481
C487 *1
R491
22/35 R499
68K
47K
R492
1.5K C489
22/50
R984
R985
4.7K
R769
10K
R986
4.7K
Q704
*1
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
MAIN PWB(2/2)
3.3V
SHEET2
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
75 X
L101
C001 C002
.01 10/50
L002
C004
470/10 D102
R001 C003
220 .1
C007 56p
R002
220
C008 56p
R003
3.9K
C005
R004 C006
.0022
27K 33/50
*
SF101
Refer to Refer to
IC701
NOTE NOTE
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.
ADJUSTMENT
CONNECTOR
CN00C
5V
SDA1
SCL1
BL_GND
12V
D714
Q706
5V
D707 R794
C778
*3 2.2K
C792
47/35
.1
C777
R760
.1
100 SCL0
Q708
Q705
*2
SDA0
C490 R761 100
470/16
Q707
R796 *1
R783
1K R795
3.3V_STB
100K 10K
Q791
*1
PW
SCL0
SDA0
C793
R793 100
4.7/50 R790
1K
P_ON/OFF
R983 R982 R981 D713
47K 3.9 47K 3.9
V1.8A
Q982
*1 1.8V
C701
1.8V .22
Q983 C702
.22
Q984
*1 C982
220/10 R792 L703
CONT
33 *4
8V IC701
*
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
CONT
HFB
ABL
EW
C707 C708
.1 100/16
P_ON/OFF
C710 C709
VDRA+
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 R702 470
EW
C715 .001
VDRB- R703 100
SF102
C716 .001
C106
VDRA+
18p
R704
.1
100
Y008
X
SF101 C718
.15
R107 *
4.7K
R705
39K
C107
.01
Y003
X
C719
.01
R706 220
Y004
0
C720 .001
R707
56K
Q103
*5
R708
100K
R709
1M
D701
*3
SDA1
SCL1
C722
X
CF702 CF701
X X
Y814
X
Y812
X
Y809
K702 X
Y727 Y711
BW
K601 Y720
Y708
X
K107 Y714
Y701
X
Y713
Y304
K104
X
Y712
Y010
Y011 Y012
K703
Y009
GND GND GND GND GND GND
GND GND
FRONT CONTROL PWB FRONT CONTROL PWB
SHEET6 SHEET6
CN001 CN002
CN001
CN002
Y707
X
Y709
0
R755
1.2K R753
1.2K
Q612
R740 *1
15K
C766
.22
C764
.1
C761
.1
C762
100/16
C760
.22
C758
.22
R735
100
R734 D715
100 *3
D716
R733
*3
100
D717
R732
*3
1K
C757
560p C717
1/50
C756
.1
C779
10/50
C753 C754
R779
100 .1
R780 C752
100 .1
R781
C751
100 .1
R782 1.2K
MAIN MICRO COMPUTER/
IF VIDEO RGB SYNC DEF PROCESS
R729 4.7K
C780
.1
C786
C750
.1
C787
C749
.1
C788
C748
.1
C746
.1
R728
R727
R726 27K
R724 1K
R778 X
R722
470
C797
0.033/16
P_R
R766
*
Q701
X
R767
X
C662
10/50
Y601 X
D603
Y602 X *3
C607
220/16
Y608
C608
220/16
Y610
X
!
Y611
CP650
X
CN00M
X
BASS PWB
SHEET7
CN00M
(No.YA447)2-5 2-6(No.YA447)
CRT SOCKET PWB
SHEET5
CN100T
CN00T
D341 *3
R341
D342 *3
0
D343 *3
Y303
R344 R345
Q341 BW
22 1K
*2
D345
*3
Y302
X
C341
220/16
SCL1
L301
SDA1
C304 C305
10/50 .01/50
R319
L305
D301
4.7K
C314
C311
C310 O.001 L304
.01
10/50
R309 220
C315
.047/50
R312 220 R320
R321
12K 4.7K
L302
Q307
IC301
*2
R318
4.7K
C306
C307
10
.01/50
C312
R310 C318 C313
4.7K 27p .01 10/50
R307
22K
C302
27p
C309
C308
.01
10/50
R797
680
R798
470
R731 D708
1k *3
K701
C755 L706
220/16 *4
.1
X
X
X
L716
*4
100
10k
R725 47
C615
1000/25
R723
IC601
470
D602
X
R617 C605
X .22
R601 0
R629 2K
C606
R662 X .22
R631 X
R602 0
R630 2K
R607
D601 *3 R603 1K
2.2
D607 *3
Y603
R611
R615
Q601
Q602 X
*2
*2
R608
C609 R610
X R609
33/50 100K
27K
D608 D609
X X
R623 R620
10K
33K
R621
2.2K
R622 Q607
10K *1
Q608
*1
R616
R624 C613 C617
X
68K 10/50 X
R816
75
C1
S_V_DET
5V
LC801
C827 R801 Y819
12V Y801
0 75 BW
Y1/CVBS1 X
GND
D814
*8
Y802
X
D815
*8
VIDEO-1
J801
S-VIDEO
VDO_DET INPUT
C821
L1
R802
0
5V
R1
R803
C822
0
GND
BASS
CVBSO/PIP J805
OPEN
X
A_GND
LC802
D751 R804
Y803 X
V2/Y *8 75
C828
GND 0
D810
*8
Y804 X
LC803
Y805 X
PB
J802 J802
C829
R805
GND 0
75
D753
*8
Y806 X D811 VIDEO-2
LC804 *8
PR Y807 X COMPONENT
D812
C830 VIDEO
*8
GND 0
R806
INPUT
75
Y808
NECK
X
V
L2
Y
U
C823 J803
R2
GND
PB
GND
GND
V2/Y C824
PR
5V
R807
R808 C804
100
X 470/16
R809
220
V_OUT
R815
75
Q801 D813
*8
C809
J804
X
L_OUT
R811 82K
OUT PUT
GND
C802
R_OUT
10/50
C803 R812
10/50 390
R813
82K
Q803
Q805
*2
c21260001a.001.1/2
MAIN PWB ASS'Y(1/2)
SCW-1926A-H2 [AV-2986ME]
SCW-1933A-H2 [AV-29MX76/G]