JVC LT-20B60SU Service Manual page 65

MAIN PWB CIRCUIT DIAGRAM (6/8)
R AUDIO FAV JK704
A
12 3
A D726 K
1 2
BZT55C12
C849
470p
50V
50V
1n
C863 R788
BACK_AUDIO_R 1k
S731
FRONT_AUDIO_R
SC2_IN_L
SC2_IN_R
SC1_IN_L
SC1_IN_R
25V
220n
C711
AMMONO_MAIN
C727
+5V_AU D 100n
16V
470u 16V
C751
L707
+5V 49 AVSUP
C726
50 ANA_IN1+
56p
C713
50V
51 ANA_IN-
56p
C750
R711
50V
QS S 100R 52 ANA_IN2+
56p
50V 53 TESTEN
C722
50V 1p8 18.432MHz 54 XTAL_IN
C721
X700 55 XTAL_OUT
50V 1p8 +8V 56 TP
IC700
R759
57 AUD_CL_OUT
4k7
AUD_SWITCH_1
R757 58 NC4
Q706
10k
BC848B
59 NC5
+8V 60 D_CTR_I/O_1
R763
4k7 61 C_CTR_I/O_0
AUD_SWITCH_0
62 ADR_SEL
R760
Q705
10k
BC848B
63 STANDBYQ
+5V_DIGITAL
64 NC6
PL702
1
MAIN_OUT_SUB
2 LINE_OUT_L
3
LINE_OUT_R
4
5
FRONT_AUDIO_L
6
FRONT_AUDIO_R
TOSHIBA: S728
K D725 A
JVC: L729 2 1
7
BACK_AUDIO_L L729 BZT55C12
R764
8 C851
CVBS_BAV 1k
BLM21A601S
C720
9
1n
470p
50V 50V
10
SVHS_Y 23 1
11
SVHS_C
YELLOW_FAV
12
JK702
FRONT V
MAIN PWB ASS'Y
(6/8)
VE-20191734
SCART 1
PL700
2 4 6 8 10 12
1 3 5 7 9 11
C749
JK703 L AUDIO FAV
A
100n
16V
C704
12 3
4n7 C706 1
BZT55C10 HDTV_CR A
R761
50V 4n7
100R
1 2 50V
A K
D720 D714 D713
C705
2 1 2
4n7
C850 K A
R723 K R724
50V
C707
75R 75R
470p
50V
4n7
50V
S732
FRONT_AUDIO_L
MODULE_IN_L
S754
25V
C712 AV4_IN_L
220n
BACK_AUDIO_L
C716
L709
CAPL_M 32
BLM21A601S
50V 10u
AHVSUP 31
C717
CAPL_A 30 SC1_OUT_L
50V 10u C729
SC1_OUT_L 29 1n
50V
SC1_OUT_R 28 SC1_OUT_R
C725
VREF1 27 1n
50V
SC2_OUT_L 26 SC2_OUT_L
C752
SC2_OUT_R 25 1n
50V
DACM_S 24 C806
SC2_OUT_R
C753
DACM_SUB 23 C805 1n
100u
50V
1n 50V
DACM_C 22 50V 220R OUT_SUB
R749
DACM_L 21 MAIN_OUT_L
DACM_R 20 MAIN_OUT_R
VREF2 19
DACA_L 18 25V 220n
R707
4k7
DACA_R 17
C701
1n C732 +5V_AUD
50V
C754
C734
100n
16V
470p
20k 50V
R708
25V 220n
4k7
C733 R705
C703
1n
50V
D703
1N4148 +5V_DIGITAL
C700
C702
100u 100n
16V
D700 16V
C797
BZT55C3V6
100n
50V
4 3
+5V_DIGITAL
2 1
JK701
SVHS
30001895 TAKILACAK
(No.YA303)2-13
SCART
14 16 18 20 20 18 16 14
13 15 17 19 21 21 19 17 15 13
D715 D710 BZT55C10
C731 C767
2 1 1 2 1
K A
A K A
150p 150p
D717
R747 R748
50V 50V
75R 75R D711
2
C730 C768
K
R725
2
75R K
R732
75R
150p 150p
50V 50V D712
1
A K D704 A A D708 K
1
2 1 1 2
A
BZT55C10 BZT55C10
IC705
C837
L734
PC_IN_L 1 Y0 VCC 16
BLM21A601S
C834 C861
16V 470n
2 Y2 X2 15
R756 16V 470n C840 16V
470n
10k 3 COM_Y_OUT_IN X1 14 BACK_AUDIO_R
C833
16V 16V
470n
4 Y3 COM_X_OUT_IN 13
10k
C835 C839
R754
100n
5 Y1 X0 12 PC_IN_R
C862
16V 470n 16V 16V
470n
6 INH X3 11
S755 100n
7 VEE A 10 AUD_SWITCH_0
8 GND B 9 AUD_SWITCH_1
C864
16V
C865
16V
100n
100n
S700
HP_L
16V 50V
100u 1n HP_R
C736 C737
IC701 C812
8 VDD OUTA 1 OUT_SUB
C755 C741
470p 1n
220n
50V 50V
25V
7 OUTB INA- 2
C740
1n5
50V
6 INB- INA+ 3
5 INB+ VSS 4 C808
R736
Q702 1k
BC848B
220n
10k R735 50V 22u 25V
R710
100R
C769
LINE_OUT_L
TOSHIBA: S725 S726
JVC:
50V
C848
HDTV_Y R785
470p
K A
100R D722
2 1
BZT55C10
23 1
JK705
L AUDIO OUT
2-14(No.YA303)
2
12 10 8 6 4 2
PL701
11 9 7 5 3 1
C766
2 C762
D709 K
100n
4n7
16V
50V
C763
1 4n7
A
50V
C764
D716
4n7
2 1 2 50V
C765
R731 K A R729 K
75R 75R 63V 63V
470n 470n
4n7
50V
C841 C842
C785 C786
1n 1n
50V 50V
C784
+8V
10u
C780
50V
MODULE_IN_R
S753 10n
C782 C783
50V
AV4_IN_R
100n 100n
50V 50V
R783
12V_AUD 10k
R753
+5V 10k 1 SD_NOT
C787
2 RINN
C788
16V
1u
MAIN_OUT_R 3 RINP
C791
16V 1u
4 V2P5
C789
16V
1u
MAIN_OUT_L 5 LINP
C790
16V 1u
6 LINN
!!BU TERMINALLERE
16V
1u
GROUND MSP DEN
7 AVDDREF
GELMELI!!
R746
18k 8 VREF
R781
9 VARDIFF
10k
S746
R782
10k 10 VARMA X
S747
11 VOLUME
R745
33k 12 REFGND
C854
16V 1u
C855
16V 1u
Q704
BC848B
50V 50V
100n 100n
R751 16V 100u
BLM21A601S
100R
L726 MAIN_OUT_SUB
C827 C801 C802
C793
50V
10n
10u
50V
C803
C809
LINE_L R737
Q701
1k
BC848B
LINE_R
220n
25V 22u 50V R734
100R
C795 C796
C770
1n 1n
50V 50V
LINE_OUT_R
S723 S724
C843 C844
50V
C847
470n 470n
HDTV_CB R784 63V 63V
470p
100R K D721 A
2 1
BZT55C10
23 1
JK706
R AUDIO OUT
POP NOISE ICIN GEREKIRSE KULLAN
S736
MUTE
+12V
C846
100u
25V
BC858B
Q709
Q708
R780
10k
BC848B
C781
10n
50V
12V_AUD
C776
VCLAMPR 36
S716
16V 1u
MODE_OUT 35
R744 MUTE
Q703
MODE 34 47k
BC848B
100k
C775 R765
AVC 33 C
VAROUTR 32 16V
1000u
C777
50V
VAROUTL 31
100n S717
AGND2 30
C778
AVDD 29
C779
50V
100n
COSC 28
50V
220p
ROSC 27 120k
R742
AGND1 26
C792
VCLAMPL 25
16V 1u
C794
10n
50V
C853
C852
470p
50V
470p
50V
12 3
JACK-AK16
JK700