Main Pwb Circuit Diagram [Av-25Ms26] (1/4),(2/4); Main Pwb Circuit Diagram [Av-25Ms26] (3/4),(4/4) - JVC AV-2586ME Service Manual

MAIN PWB CIRCUIT DIAGRAM [AV-25MS26] (1/4)(2/4) SHEET3
R796
10K
Q704
*1
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
NECK
MAIN PWB(3/4)
H_DRIVE
SHEET4 HFB
ABL
EW
P_ON/OFF
VDRA+
VDRB-
PROTECT
3.3V
32V
TU001
*
C101
R101
.0047
10
CF101
R005
X
75
C001
.01
L002
C004
470/16
R001 C003
220 .1
C007 56p
R002 220
C008 56p
C005
.0022
R004
27K
K702
K651
K105
K104
K102
GND GND
MAIN PWB ASS'Y(1/4)
SCW-1916A-H2 [AV-25MS26]
NOTE) 1. Refer to the part list for the part number of IC701 and IC702.
2. Refer to page 2-19 for voltages of this circuit diagram.
3. Refer to page 2-20 for waveforms of this circuit diagram.
ADJUSTMENT
CONNECTOR
MAIN PWB ASS'Y (4/4)(FRONT LED)
CN00C SCW-1916A-H2 [AV-25MX76/G]
IC801
IC302
C808
100/16
Y813
X
Y814
C317 0
R327
39K 10/50
CN10A
CN00A
5V
SDA
SCL
Q706
5V
R794
D707
2.2K
*3
D706 C777 C778 C792
.1 47/35
0.1
R760
220 SCL0 Q708 Q707 Q705
*2 *1
SDA0
R783
R761 R795
R976 10K
220 100K
1K
3.3V_STB
Q791
*1
PW
SCL0
SDA0
C793
10/50 R793 100
R790
1K
P_ON/OFF D713
R984 R983 R982 R981
47K 3.9
3.9 47K
V1.8A
Q982
1.8V
*1
C701
1.8V .22
R985 Q984
4.7K
*1 C702
Q983
.22
R986
4.7K
CONT R792 L703
33 *4
C704 C790
.1 27p
8V
5V
A_VCC
C705
A_GND
7p
5V
C706
7p
12V
X701
NECK
H_DRIVE
R756 10K
NECK
HFB C785 2.2
CONT
ABL
L718 *4 C784
EW
C707
C709
P_ON/OFF .1 .01
VDRA+ C710 R701
6800p 12K
VDRB-
C708 C711
PROTECT 100/16
2.2/50
3.3V
C712 .22
4.5/OTHER
C713 10/50
3.58/OTHER
C714 .022
EW R702 470
C715 .001
SF102 VDRB- R703 100
C716 .001
C111
220/16 VDRA+
C106
18p
C110
R704 100
.1
Y008
L101 X
SF101 C718
R107
*
4.7K
R705
D101
39K
C109
C107
.0047 .01
C719 .01
Y004 R706 220
0
Y003
C720 .001
X
R707 22K
R708 10K
R709
1M
D701
*3
SCL
SDA
C722
X
C773 Y722
Y711
.1 CF702 CF701
X X
Y721
Y710
X
BW
Y709 Y720
X
Y718
Y708
X
Y717
Y706
Y705 Y716 Y968
Y715
Y704 Y962
X
X
Y714 Y961
Y703
X X
Y702 Y713 Y824
X X X
Y712
Y101 Y812
X
X
GND GND
GND GND GND GND
(No.YA444)2-9
CN00T
D808
C806
X
R822
S805 S804 S803 S802 S801
1K
R824
R823
X 470
R825
R821 R820 R819 R818
470 330 220 180
R753
R755
1.2K
1.2K
C766
.22
C764
X
C763
X
C761 C762
.1 100/16
C760
IC701 .22
C758
.22
R735
100
D715
R734
100 *3
R733 D716
100 *3
R720
D717
680
R732 *3
1K
R721
C717
470
C757 1/50
560p
R731
C756
1K
.1
C755
220/16
C779 C753 C754
10/50 .1 .1
D753
MAIN MICRO COMPUTER/TELETEXT DECODE/ R779 100
*8
IF VIDEO RGB SYNC DEF PROCESS
R780 100 C752 .1
C751 .1
R781 100
D751
*8
R782 1.2K
R729 X
C780
.1
C750 X
C749 X
C748 X
C788 .1
C746
.1
R728 100
R727 560
R726
27K
R724 X
R778 X
R722
X
Y707
A_B
R766
X
Q701
X
R767
X
C662
10/50
X D607
D603
*3
C607
220/16
C608
220/16
Y610
!
X
CP650
Y611
X
CN00M
BASS PWB
SHEET5
CN00M
2-10(No.YA444)
MAIN PWB(4/4)
(CRT SOCKET)
SHEET4 VIDEO-3
INPUT
J806
J807
J808
J809
R817
X
R630
R632
270
270
D814
LC805
*8
C825 C826
.0015 .0015 R631
R633
1K
Y809 1K
Y810
X X
C831
0
D341 C615 C616
*3 1000/25 1000/25
D342
*3
R961
D343 Y909
Q341 R344 10K
X
*3 *2 22 C1
Y942 Y941 5V
S_V_DET
X X Y912
12V
C341 D345
100/16 *3
SCL
Y1/CVBS1
SDA
L301 X
GND
C305
C304
X
X D301 R319
W-C
X X 5V
L305 X
C314 VDO_DET
C310 C311
X L304
X X
X
L1
R309 X
R1
R312 X
GND
C315
L302 X
X CVBSO/PIP
IC301
R318
X
Q307 X
C306 X
X
R310
C318 C313 C312
X
X X X
V2/Y
L306 GND
X
PB
R307 X301
X X
L303
C302 C303
GND
C309 C308 X
X X
X X
PR
V GND
Y
U
K701
L2
D708
*3
L706
R2
*4
NECK
PB
GND
GND
V2/Y
PR
Y943 BASS
X
3.3V_STB
3.3V
A_GND
Y944
X
5V
V_OUT
C786
.1
C787
.1
L716
L_OUT
*4
GND
R_OUT
R725
X
Q702
X
D605
X
IC601
R723
X AUDIO AMP
D604
X
D602
X
R617 C605
X
.22
R601
0 R637 1K
P_R
R662 C606
X
R638 X
.22
X
R602
0 R639 1K
R607
R640
2.2
1K
D610 *3
*3
R634 R635 R636
R611 0 X 0
10K
Q601
*2
Q602
R649 *2
1K
R609 R610
27K C609 100K
33/50
D608
D609
X
X
R623 R620
33K 10K R621 C661
2.2K 10/50
R622 Q607
10K *1
Q608
*1
C613 C617
R624
10/50 X
68K
c21247001a.001.1/2
CN00S
SPEAKER
R816
75
J801
C827 Y801 R801 Y819
0
X 75 BW
C
D817 S1
*8
LC801
Y802
W-C1 X VIDEO-1
V1
S-VIDEO
INPUT
L1
C821
R1
C822
W-G W-G1
C828
R804
0 Y803 X
75
LC802
D810
Y804 X
C829 *8
0 Y805 X
R805
75
J802
LC803
VIDEO-2
Y806 X
D811
C830 *8 COMPONENT
0
VIDEO
LC804
R806
INPUT
75
D812
*8
C823 J803
.0015
C824
.0015
J805
OPEN
X
R807
C804
100
470/16
R809
220
R815
75
Q801 D813
J804
*8
OUT PUT
R811
C809
C802
82K
X 10/50
R812
C810 C803
390
X 10/50
R813
82K
Q803
*6
Q804
*6
Q805
*2 R814
100K
*
TDA12021
IC701
-ERC3-F
TU001
C006
SF101