Circuit Diagrams; Main Pwb Circuit Diagram (1/4), (2/4) - JVC AV-21BS26 Service Manual

CIRCUIT DIAGRAMS

MAIN PWB CIRCUIT DIAGRAM (1/4), (2/4) SHEET1
D706
MA8036-X
R796 R985
10K 4.7K
Q704
*1 R986
4.7K
GND
3.3V_STB
8V
A_VCC
A_GND
5V
12V
MAIN PWB(3/4) NECK
H_DRIVE
SHEET2 HFB
ABL
EW
P_ON/OFF
VDRA+
VDRB-
PROTECT
3.3V
32V
TU001
*
TUNER
R101 C101
.0047 C111
10
MC 220/16
IF
CF101
R005
NC 75 X
32V L101
MC C001
.01 QQL244K-1R0Z
LOCK
L002 QQL244J-4R7Z
5V
C004
470/16
BM
R001 C003 MC
220 .1
C109
SDA
.0047
CH
C007 56p R002 220
SCL
CH
C008 56p
AS
BT
C005
.0022
AGC
MC MC
MC
R004
27K
SCW SCW SCW SCW SCW SCW SCW
* -1949A -1966A -1964A -1950A -1951A -1952A -1953A -1637A
QAU0466 QAU0466 QAU0466 QAU0466 QAU0466 QAU0383
TU001 QAU0466 QAU0470
-001 -001 -001 -001 -001 -001 -002
C006 QETN1HM QETN1HM QETN1HM QETN1HM QETN1HM QETN1HM QETN1HM
-336Z -336Z -336Z -336Z -336Z -336Z -336Z
QAX0872 QAX0872 QAX0872 QAX0872 QAX0663 QAX0663 QAX0663 QAX0872
SF101
-001 -001 -001 -001 -001 -001 -001
QAX0731 QAX0731 QAX0731 QAX0731 QAX0905 QAX0905 QAX0905 QAX0731
SF102
-001 -001 -001 -001 -001 -001 -001
NDC31HJ NDC31HJ NDC31HJ NDC31HJ NCB31HK NCB31HK NDC31HJ
C106 NCB31HK
-180X -180X -180X -180X -103X -103X -103X
QETN1CM QETN1CM QETN1CM QETN1CM QETN1CM QETN1CM QETN1CM QETN1CM
C341
-227Z -227Z -227Z -227Z
-227Z -227Z -227Z
IC701 TDA12010 TDA12020 TDA12020 TDA12062 TDA12062 TDA12010
Refer to NOTE Refer to NOTE
H/N1F00 H/N1F01 H/N1F01 H/N1F00 H/N1F00 H/N1F00
Note: 1. Please refer to parts list for the part number of IC701 and IC702.
2. Please refer to page 2-11 for voltages of this circuit diagram.
3. Please refer to page 2-12 for waveforms of this circuit diagram.
MAIN PWB ASS'Y(2/4) [FRONT LED]
ADJUSTMENT
SCW-1949A-H2 [AV-21BS26]
CONNECTOR
SCW-1951A-H2 [AV-21BX16/G, AV-21BX16B/G]
CN00C
QGA2501F1-06
IC801
GP1UE281QKVF
IC302
REMOTECON
X
RECEIVER
ECO
C806
C808
X
100/16
Y813
X
Y814
C317
R327 0
X
X
CN10A
QJL001-050600-E
CN00A
QJL001-050600-E
5V
SDA
SCL
Q706 D
5V
SSM3K02F-X
R794 G
D707
S
*3 2.2K
C777 C778 C792
.1 47/35
0.1
R760
220 Q708 Q707 Q705
SCL0
D
*2 *1 SSM3K02F-X
SDA0
G
S
R783
R761 R795
R976
220 10K
1K 100K
1/4W
3.3V_STB
Q791
*1
PW
SCL0
SDA0
C793
R793 100
10/50 R790
1K
P_ON/OFF D713
MA8039/H/-X
R984 R983 R982 R981
47K 3.9
3.9 47K
1/2W
1/2W
V1.8A VssP2
Q982
*1 1.8V
VssC4
C701
1.8V .22
V1.8C4
Q984
*1 C702
Q983
.22
2SA562TM/Y/-T V3.3A3
VrefP_Sdac
R792
CONT L703
33 1/4W CH
*4
VrefN_Sdac
C704 C790
.1 27p
VrefP_Sdac
8V
VrefN_Sdac
A_VCC
5V
VrefP_Sdac
A_GND C705
7p
CH
XtalIn
5V
C706
7p
CH
12V XtalOut
X701
QAX0799-001Z
NECK
VssA1
H_DRIVE R756 10K
NECK
NECK
HFB
L718 *4
CONT
ABL CONT
C785 2.2
C784
1/50
EW
V5P1
C707
C709
P_ON/OFF .1
.01 MC
Ph2
VDRA+
C710 R701
6800p MC 12K
VDRB- Ph1
C708 C711
PROTECT 100/16
2.2/50
Gnd1
3.3V
C712 .22 TF
SecPll
4.5/OTHER
C713 10/50
3.58/OTHER
Dec8G
C714 .022
MC
EW R702 X
EW
C715 .001
MC
VDRB- R703 100
SF102 VDRB-
* C716 .001 MC
C106 VDRA+
VDRA+
*
C110 R704 100
CH
.1
Vif1
Y008
X Vif2
TF
Vsc
SF101 C718
R107 * QFZ0229-154Z
4.7K Iref
R705
D101
1SS356-X 39K
MC GndIF
C107
.01 Sif1
Sif2
C719 .01 MC
R706 220
Y004
AGC
0
Y003
C720 .001 MC
X EHT
R707 22K
MC MC R708 10K
R709
1M
1/4W
D701
SCL *3
SDA
C722
X
CF702 CF701
X X
SCW
C773 Y722
Y711
.1 QUY160-150Y
QUY160-150Y
-001
Y721
QETN1HM Y710
-225Z QUY160-200Y
BW
Y720
Y709
-001 X
QUY160-050Y
Y718
-001 Y708
QUY160-050Y X
-180X Y717
Y706
QUY160-075Y
QUY160-250Y
K702
-107Z QUY160-050Y Y716
Y705
QUY160-150Y
QUY160-150Y
K651
Y715
QQR1113-001Z Y704
X
QUY160-050Y
K105 Y714
Y703
QUY160-150Y X
QUY160-150Y
Y713
K104 Y702
QQR1114-001Z QUY160-100Y
X
Y712
K102 Y101
X
QUY160-150Y X
GND GND GND GND
GND GND
MAIN PWB (4/4) SHEET2
(CRT SOCKET) CN10T
CN00T
QJL001-064431-E
D808
LH22440-T16
R822
S805 S804 S803 S802 S801
1K
QSW0619-003Z QSW0619-003Z QSW0619-003Z QSW0619-003Z QSW0619-003Z
R824
R823
470
X
R825
QRE141J-470Y
R821 R820 R819 R818
470 330 220 180
R753
R755
1.2K
1.2K
V1.8ADC
C766
.22
VssADC
C764
X
V3.3A2
V1.8A
C763
X
GndA
C761 C762
.1
100/16
RefAd
V3.3RefAdP
IC701
* C760
.22
RefAdN
C758
.22
V3.3A1
R735
100
Bout D715
R734
100 *3
Gout R733 D716
100 *3
Rout D717
R732 *3
1K NRSA63J-683X
C717
BLKIN R721
1/50
C757 NRSA63J-473X
560p CH
BCL
MC R731
C756
1K
.1
V5P3
Gnd3
C779 C754
C753
10/50 .1
.1
B3/Pb
1/4W D753
R779
QRE141J-101Y
MAIN MICRO COMPUTER/
G3/Y
C752
R780
NRSA63J-101X
C751
R3/Pr
TELETEXT DECODE/ R781 1/4W
D751
INSSW3
R782 1.2K
IF VIDEO RGB SYNC DEF. PROCESS
NC
R729 X
Uout/INSSW2
Yout
C780
.1
Ysync
C750 X
Yin/G2/Y
C749 X
Uin/B2/Pb
C748 X
Vin/R2/Pr
C788 .1/16
V5Comb
C746
.1
VssComb
R728 100
Hout
R727 560
FbiSo
R726 27K
SVM
R724 X
R778 X
R722
X
Y707
QUY160-075Y
A_B
R766
X
Q701
X
R767
X
C662
10/50
D603
*3
C607
220/16
C608
220/16
!
Y610
Y968
QUY160-050Y
CP650
QUY160-100Y
ICP-N25-T
Y962
CP
X
Y611
Y961 0
X
Y824
QUY160-200Y
Y812
X
GND GND
CN00M
X
OPEN
(No.YA443)2-5 2-6(No.YA443)
VIDEO-3
INPUT
J806
QNN0281-003
J807
J808
QNN0281-002
QNN0282-001
J809
R817
QNS0155-001
X
R630 R632
270
D814 270
LC805 1/2W
MC MC 1/2W
*8
QQR1199-002
C825 C826
.0015 .0015 R631
R633
1K
Y809 1K
Y810
X X
C831
0
C615 C616
1000/25 1000/25
D341
*3
D342
*3
C1
R961
D343 Y909
R344 10K
Y942 Y941 Q341 22 X S_V_DET
*3 1/4W 5V
X X
*2
C341
D345
* Y912
*3
QUY160-075Y 12V
SCL
Y1/CVBS1
SDA
L301 X
QUB230-16ZAZA-E
MC
C304 C305
X X D301 R319 GND
X
X 5V
L305
X
MC
VDO_DET
C314
C310 C311
MC X X L304
X
L1
X
NC NC NC NC NC NC
R309 X NC
R1
I2C1
CVBS3
R312 X I2C2
TM
GND
SDA CVBS2
L302
C315
X SCL TEST
X CVBSO/PIP
IC301
R318
INTR X CVBS1
MC Q307 X
NC NC
C306 X
X VDD33PAD VSS18ADC
VSS33PAD VDD18ADC
MC
R310 VSP IN1
C318 C313 C312
X NC
X X X
HSP IN2
NC NC
IN3 V2/Y
GP01
NC NC
CLKOUT FSW
CH
L306 GND
X
NC
PB
X301
R307
X X
CH MC
C302 GND
X C309 C308
X X
PR
V GND
Y
R720
U
K701
QUY160-150Y
L2
D708
1/4W *3
C755 L706
R2
220/16 *4
NECK
PB
GND
GND
*8 V2/Y
.1
.1 PR
BASS
Y943
X
3.3V_STB
*8
3.3V
A_GND
Y944
X
5V
C786 V_OUT
.1
C787
.1
L716
L_OUT
*4
GND
R_OUT
R725
X
Q702
X
D605
X
IC601 AUDIO AMP
R723
AN5276
X
D604
X
D602
X
R617
C605
X .22
R601
P_R 0 R637 6.8K
R662
C606
X
R638 X
.22
R602 X
0 R639 6.8K
R607
R640
2.2
D610 *3 1/2W 1K
1/4W
D607 *3
R634 R635 R636
R611
0 X 0
10K
Q601
*2
Q602
*2
R649
R609 1K
27K
R610
100K
C609
33/50
D608 D609
X X
C661
R623 R620 10/50
33K 10K
R621
2.2K
R622 Q607
10K *1
Q608
*1
C613 C617
R624 10/50 X
68K
c21249001a.001_1/2
SPEAKER
CN00S
QGA2501C5-04Z
R816
NRSA63J-750X
J801
QNZ0454-002
C827 Y801 R801 Y819
0
X 75 BW
W-C W-C1
Y802
VIDEO-1
X
D817
LC801
*8
QQR1199-002
S-VIDEO
INPUT
C821
NCB31HK-152X
C822
NCB31HK-152X
W-G W-G1
QUB230-12ZAZA-E
C828
R804
0 Y803 X
75
LC802
QQR1199-002
D810
Y804 X
C829 *8
0 Y805 X
R805
75 J802
LC803 VIDEO-2
QNN0349-002
QQR1199-002
Y806 X COMPONENT
D811
C830
*8
0
VIDEO
LC804
QQR1199-002 R806
75 INOUT
D812
*8
MC
C823 J803
.0015
QNN0348-001
MC
C824
.0015
J805
OPEN
X
R807
100 C804
1/2W 470/16
R809
220
R815
75
Q801 D813
J804
*8
KTA1267/YG/-T
QNN0349-001
R811 OUTPUT
C809
C802 82K
X
10/50
R812
C810 C803
X 10/50 390
R813
82K
Q803
*6
Q804
*6
Q805
*2 R814
100K
MAIN PWB ASS'Y(1/4)
SCW-1949A-H2 [AV-21BS26]
SCW-1951A-H2 [AV-21BX16/G, AV-21BX16B/G]