Circuit Diagrams; Main Pwb Circuit Diagram [Av-25Ms16/H, Av-25Mx16/G, Av-25Mx16/S] (1/4), (2/4) - JVC AV-25MS16/H Service Manual

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM [AV-25MS16/H, AV-25MX16/G, AV-25MX16/S] (1/4), (2/4) SHEET1
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
MAIN PWB(3/4) NECK
H_DRIVE
HFB
SHEET2
ABL
EW
P_ON/OFF
VDRA+
VDRB-
PROTECT
3.3V
32V
TU001
*
R101
10
R005
75
C001
.01
L002
470/16
R001 C003
220 .1
C007 56p
R002
C008 56p
C005
.0022
R004
27K
GND
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.
MAIN PWB ASS'Y (4/4)(FRONT LED)
ADJUSTMENT
SCW-1909A-H2 [AV-25MS16/H]
CONNECTOR
SCW-1922A-H2 [AV-25MX16/G]
SCW-1924A-H2 [AV-25MX16/S]
CN00C
IC302
C317
R327
39K 10/50
5V
SDA
SCL
Q706
5V
R794
D707
*3 2.2K
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 47K 3.9
V1.8A
Q982
*1 1.8V
C701
R796 1.8V .22
R985
Q984
10K 4.7K C702
*1
Q983 .22
Q704
*1
R986
4.7K
R792
CONT 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 MAIN MICRO COMPUTER/TELETEXT DECODE/
C712 .22
4.5/OTHER
C713 10/50
3.58/OTHER
C714 .022
R702 470
EW
C715 .001
VDRB- R703 100
C101 SF102
.0047 C111 C716 .001
220/16 C106 VDRA+
18p
CF101 C110 R704 100
.1
X
Y008
L101 X
SF101 C718
R107 *
C004 4.7K
D101 R705
39K
C109
C107
.0047
.01
220
C719 .01
Y004 R706 220
0
Y003
C720 .001
X
R707 22K
R708 10K
R709
1M
D701
*3
SCL
SDA
Y711 C773 Y722
.1 CF702
X
Y721
Y710
X
BW
Y720
Y709
X
Y708 Y718
X
Y717
Y706
K702
Y705 Y716 Y968
K651
Y715
Y704 Y962
X
X
K105
Y714 Y961
Y703
X X
K104 Y702 Y713 Y824
X
X X
Y712
K102 Y101 Y812
X
X
GND GND
GND GND GND GND GND
IC801
D808
C806
C808
X
100/16
R822
1K S805 S804 S803 S802 S801
Y813
X
Y814
R824
0 R823
X 470
R825
R821 R820 R819 R818
470 330 220 180
CN10A
CN00A
R753
R755
1.2K
1.2K
C766
.22
C764
X
C761
.1
IC701
R735
100
R734
100
R733
100
R732
1K
C757
560p
C779
10/50
R779 100
R780
R781
IF VIDEO RGB SYNC DEF PROCESS
R782
R729
R724
Y707
R766
X
Q701
X
C722
R767
X
X
CF701 C662
X 10/50
X
D603
Y610
!
X
CP650
Y611
X
CN00M
BASS PWB
SHEET5 CN00M
(No.YA445)2-5 2-6(No.YA445)
MAIN PWB(4/4)
(CRT SOCKET)
CN10T (SHEET2)
VIDEO-3
INPUT
CN00T
J806
J808 J807
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 Q341 R344 10K Y909
*3 22 X
*2 5V
Y942 Y941
X X
Y912
12V
D345
C341
100/16 *3
SCL
SDA
L301 X
C304 C305
X X D301 R319
X X 5V
L305 X
C314
C310 C311
X L304
X X
X
R309 X
R312 X
C315
L302 X
X
IC301
R318
X
Q307 X
X
C306
X
R310 C313
C318 C312
X
X X X
C763
X
C762
L306
100/16
X
R307 X301
C760 X X
.22
L303
C302 C303
X
C758 X X C309 C308
.22 X X
D715
*3
D716 V
*3
Y
R720
D717 680 U
*3
K701
R721
C717
470
1/50
R731 D708
C756
1K *3
.1
C755 L706
220/16 *4
NECK
C753 C754
.1 .1 PB
D753 GND
*8 V2/Y
C752 .1
100
PR
C751 .1
100 Y943
D751 X
3.3V_STB
*8
1.2K
3.3V
X
Y944
X
C780
.1
C750 X
C786
.1
C749 X
C787
C748 X .1
C788 .1
C746 L716
.1
*4
R728 100
R727 560
R726 27K
X
R725
X
Q702
R778 X
X
D605
X
IC601
R722 R723
X X AUDIO AMP
D604
X
D602
X
R617 C605
X
.22
R601
0 R637 1K
P_R
R662
C606
X
A_B R638 X .22
R602 X
0 R639 1K
R607
R640
2.2
D610 *3 1K
D607 *3
R634 R635 R636
R611
0 X 0
10K
Q601
*3 *2
Q602
C607
R649 *2
220/16
1K
R609 R610
C608 27K 100K
C609
220/16
33/50
D608
D609
X
X
R623 R620
33K 10K
R621 C661
2.2K 10/50
Q607
R622
*1
10K
Q608
*1
C613 C617
R624 10/50 X
68K
c21247001a.001.1/2
CN00S
SPEAKER
R816
75
C1
S_V_DET
J801
C827 Y801 R801 Y819
0 X 75 BW
Y1/CVBS1
C
D817
GND S1
*8
LC801
Y802
VIDEO-1
W-C W-C1
X V1
S-VIDEO
VDO_DET
INPUT
L1 L1
C821
R1 R1
C822
GND
CVBSO/PIP
W-G W-G1
C828
0 R804
Y803 X
V2/Y 75
LC802
GND
D810
Y804 X
C829 *8
Y805 X
PB 0 R805
75 J802
LC803
GND
VIDEO-2
Y806 X
D811
C830 *8
0 COMPONENT
PR
LC804
GND R806
VIDEO
75
D812
*8 INPUT
L2
C823 J803
.0015
R2
C824
.0015
GND
BASS
J805 OPEN
X
A_GND
5V
R807
100 C804
470/16
R809
220
V_OUT R815
75
Q801 D813
J804
*8
L_OUT
GND R811
C809 C802
R_OUT 82K
X 10/50 OUT PUT
R812
C810 C803
390
X 10/50
R813
82K
Q803
*6
Q804
*6
Q805
*2 R814
100K
*
IC701 Refer to NOTE Refer to NOTE Refer to NOTE
TU001
C006
SF101
MAIN PWB ASS'Y(1/4)
SCW-1909A-H2 [AV-25MS16/H]
SCW-1922A-H2 [AV-25MX16/G]
SCW-1924A-H2 [AV-25MX16/S]