Elenberg LTV - 4231, Service Manual

Page: 5 / 52

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
YPbPr-Lin
SC2-L
AV2_IN
SC1AV+
SC1AV_SOG
YPbPr-Lin1
SC2_VOUT
SCT2-Y/CVBS
SIDE1-Lin
SC1-Lin
SC1-Rin SC1-R
SC1-L
SIDE1-Rin
SC1AV_SOG
SC1-L
SC1-V
SC1_Vout
SC1-R
SC1R+
SC1B+
SC1G+
SC1B-
SC1R-
SC1G-
SC1_FSW
SC1_FS
SCART1_VOUT
SC2R2
SC2-YPbPr-SW0
YPbPr-Rin1
SC2B1
SC2-Lin1
SC2-L
SC2-V/Y
SC2AV_OUT
SVIDEO-Y SVIDEO-Y
SC2-R
SC2R+
SC2B+
SC2G+
SC2B2
SC2B-
SC2R-
SCT2-C
SC2G-
SC2_FSW
Scart2in
SC2_VOUT
SC2-Rin1
SC2-Rin1 SC2-R
SC1_SOG
SV-Y
SV-C
AV2+
SIDE1-Lin
SC2-Lin1
YPbPr-Lin1
YPbPr-Rin1 YPbPr-Rin
YPbPr-Lin
SC2-V/Y
SC1-V
Scart1_Rout
SVIDEO-C SVIDEO-C
AV2_IN
SIDE1-Rin
Scart2_Rout
Scart1_Lout
Scart2_Lout
HD_YIN
HD_PBIN
HD_PRIN
SC2G2
SC2B2
SC2R2
SC2G1
SC2B1
SC2R1
SC2-YPbPr-SW0
HD_YIN_SOG
SC2_SOG2
SC2G1
SC2R1
HD_PBIN
YPbPr-Rin
HD_YIN
SC2AV_SOG
SC2AV_SOG
SC2_SOG2 SC2_SOG
SC2G2
SC2_SOG2
HD_PRIN
5VA
+5VBUF0 5VA
+5VBUF0
5VA
5VA
5VA
5VA
5VA
5VA
5VA 5VA
5VA
5VA
5VA
5VA 5VA
5VA
5VA 5VA
5VA 5VA
5VA 5VA
5VA
5VA
5VA
5VA 5VA
5VA 5VA
5VA
5VA 5VA 5VA
SC1AV+ 2
CVBSOUT
2
SCT2-Y/CVBS 2
SC1-Rin 2
SC2G+ 2
SC1-Lin 2
SC2B+ 2
SC2_FSW 2
Scart2in 2
SC2R- 2
SC1_FSW 2
SC2G- 2
SC2-YPbPr-SW0 2
SC1_FS 2
SC2B- 2
SCT2-C 2
SC1G+ 2
SC1B+ 2
SC1_SOG2
SC1R- 2
SC1G- 2
SC1B- 2
SC1R+ 2
SCART1_VOUT 6
AV2+ 2
SC2R+ 2
SV-C 2
SV-Y 2
SC1_LOUT 2
SC1_ROUT 2
SC2_LOUT 2
SC2_ROUT 2
SIDEAV-Rin 2
SIDEAV-Lin 2
SC2-Rin 2
SC2-Lin 2
SC2_SOG2
YPbPr Input
SCART2 VIDEO Output
SCART1 Input
Blanking I/O
Blue I/O
Green I/O
Switch
SCART2 Input
Blanking I/O
Blue I/O
Green I/O
Switch
SIDE AV(ALL NC IF SIDEAV DISABLE)
SCART1 AUDIO Input
视频输出幅度太大或者太小调节 R694, 标准幅度是 2Vp-p, 可能有偏差大概 2.2Vp-p
SCART2 & USB-YPbPr AUDIO Input
S=0 S1n=Dn
S=1 S2n=Dn
A=0 X0=X Y0=Y
A=1 X1=X Y1=Y
SC2-YPbPr-SW0
为低电平时，同时选通
YPbPr
的视频和音频
SC2-YPbPr-SW0
为高电平时，同时选通
SCART2
的视频和音频
R651A
12K R651A
12K
S1A
2
S1B
5
S1C
11
S1D
14
S2A
3
S2B
6
S2C
10
S2D
13
GND
8
EN#
15
VCC
16
IN
1
DA
4
DB
7
DC
9
DD
12
N609
NC/FSAV330
N609
NC/FSAV330
1
2
3
4
5
6
7
8
9
XS605
CON9
XS605
CON9
R699A
NC/0
R699A
NC/0
C643
NC/330pF
C643
NC/330pF
R606A 10 R606A 10
R647A
NC/10
R647A
NC/10
R613A
75
R613A
75
C673
NC/330pF
C673
NC/330pF
3
1 2
D636
BAV99
D636
BAV99
R656A 47 R656A 47
R630A NC/1K R630A NC/1K
C696
560pF
C696
560pF
C601A 1uF C601A 1uF
C655
NC/10uF C655
NC/10uF
R634A
NC/12K R634A
NC/12K
1
2
3
Q604
3904
Q604
3904
R696
75
R696
75
C659 47nF C659 47nF
R658A 0 R658A 0
C663 1uF C663 1uF
3
1 2
D625 BAV99 D625 BAV99
R614A
75
R614A
75
3
1 2
D632
BAV99
D632
BAV99
R605A 10 R605A 10
R635A 10 R635A 10
C662 47nF C662 47nF
C698 47nF C698 47nF
R662
NC/75
R662
NC/75
R617A 1K R617A 1K
C651
NC/10uF
C651
NC/10uF
C665 1nF C665 1nF
3
1 2
D627
BAV99
D627
BAV99
C695
NC/330pF
C695
NC/330pF
R660A
8.2K
R660A
8.2K
C653
NC/330pF
C653
NC/330pF
+
CA606
NC/47uF/16V
+
CA606
NC/47uF/16V
L614
0/NC
L614
0/NC
R662A
1.5K R662A
1.5K
R657A
10K
R657A
10K
C640
NC/330pF
C640
NC/330pF
+
CA605
NC/100uF/16V
+
CA605
NC/100uF/16V
R618A 47 R618A 47
R689 NC/0 R689 NC/0
C693
NC/330pF
C693
NC/330pF
C676 1uF C676 1uF
C667
NC/330pF
C667
NC/330pF
3
1 2
D618
BAV99
D618
BAV99
C638
NC/330pF
C638
NC/330pF
C677
NC/330pF
C677
NC/330pF
R661A 1K R661A 1K
C679
NC/560pF
C679
NC/560pF
R683
120
R683
120
R639A 47 R639A 47
R601A
NC/100
R601A
NC/100
L613
0/NC
L613
0/NC
R648A
75
R648A
75
3
1 2
D619
BAV99
D619
BAV99
R608A 10 R608A 10
C639
NC/330pF
C639
NC/330pF
3
1 2
D637
BAV99
D637
BAV99
R600A
75
R600A
75
C672 47nF C672 47nF
R681 NC/47K R681 NC/47K
C699 47nF C699 47nF
1 2
L627
330_Ohm_200mA
L627
330_Ohm_200mA
R697 NC/0 R697 NC/0
R646A 1K R646A 1K
R641A 10 R641A 10
R633A
NC/12K R633A
NC/12K
R692 NC/0 R692 NC/0
3
1 2
D626
BAV99
D626
BAV99
R691 0 R691 0
1 2
L628
NC/FB
L628
NC/FB
R625A
8.2K
R625A
8.2K
3
1 2
D650 NC/BAV99 D650 NC/BAV99
L612
0/NC
L612
0/NC
C675
560pF
C675
560pF
R663A
75 R663A
75
R615A 47 R615A 47
R640A
10K
R640A
10K
R621A 47 R621A 47
3
1 2
D644 BAV99 D644 BAV99
R668
75
R668
75
3
1 2
D623
BAV99
D623
BAV99
L610
0
L610
0
3
1 2
D635
NC/BAV99
D635
NC/BAV99
3
1 2
D634
NC/BAV99
D634
NC/BAV99
C606A
560pF
C606A
560pF
C668
NC/330pF
C668
NC/330pF
R637A
10
R637A
10
3
1 2
D620
BAV99
D620
BAV99
C697
560pF
C697
560pF
C687 47nF C687 47nF
3
1 2
D631
BAV99
D631
BAV99
3
1 2
D630
BAV99
D630
BAV99
3
1 2
D645
BAV99
D645
BAV99
R675
10
R675
10
R695
10
R695
10
3
1 2
D642
BAV99
D642
BAV99
3
1 2
D641
BAV99
D641
BAV99
3
1 2
D647
BAV99
D647
BAV99
C689 47nF C689 47nF
R669 10 R669 10
C684
NC/330pF
C684
NC/330pF
R671A
18k R671A
18k
R623A
12K R623A
12K
L604
0
L604
0
R699
0/NC
R699
0/NC
R602A 10 R602A 10
3
1 2
D638
BAV99
D638
BAV99
3
1 2
D628 NC/BAV99 D628 NC/BAV99
X0
12
X1
14
X2
15
X3
11
Y0
1
Y1
5
Y2
2
Y3
4
A
10
B
9
X
13
Y
3
VCC
16
GND
8
INH
6
VEE
7
N610
NC/74HC4052
N610
NC/74HC4052
L617 0 L617 0
1
3
2
Q603
3906
Q603
3906
C669 47nF C669 47nF
3
1 2
D639
BAV99
D639
BAV99
R666A
12K R666A
12K
3
1 2
D624 BAV99 D624 BAV99
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
21
23
22
XS609
SCART XS609
SCART
R664A 1K R664A 1K
3
1 2
D648
BAV99
D648
BAV99
R652A
12K R652A
12K
R660
NC/75
R660
NC/75
3
1 2
D640
BAV99
D640
BAV99
C657
10uF
C657
10uF
L607
0
L607
0
C666
NC/330pF
C666
NC/330pF
C647
NC/0.1uF
C647
NC/0.1uF
R649A
75
R649A
75
R690
220
R690 220
R
687
N
C
/47K
R
687
N
C
/47K
C674
560pF
C674
560pF
R698 10 R698 10
L616 0 L616 0
C600
10uF
C600
10uF
C652
10uF C652
10uF
R629A NC/1K R629A NC/1K
R616A
10K
R616A
10K
3
1 2
D629 BAV99 D629 BAV99
C690 47nF C690 47nF
R650A
75
R650A
75
R694
150/120 R694
150/120
R670 10 R670 10
C670 47nF C670 47nF
R624A 0 R624A 0
R645A 10 R645A 10
C654
NC/330pF
C654
NC/330pF
R
684
N
C
/47K
R
684
N
C
/47K
C642
NC/330pF
C642
NC/330pF
C682
NC/330pF
C682
NC/330pF
R622A
12K R622A
12K
R631A
10K
R631A
10K
R619A 1K R619A 1K
L606
0
L606
0
R
682
N
C
/47K
R
682
N
C
/47K
C602A 47nF C602A 47nF
R665A
12K
R665A
12K
1
2
3
4
5
6
7
8
9
XS607
NC/CON9
XS607
NC/CON9
R628A
75 R628A
75 R627A
1.5K R627A
1.5K
+
CA609
NC/100uF/16V
+
CA609
NC/100uF/16V
C680
NC/560pF
C680
NC/560pF
C656
NC/0.1uF
C656
NC/0.1uF
R
685
N
C
/47K
R
685
N
C
/47K
R642A 10 R642A 10
R688
0
R688
0
R636A
75
R636A
75
C692 1nF C692 1nF
1 2
L611
NC/FB
L611
NC/FB
R672A
15k R672A
15k
2
4
6
8
10
12
14
16
18
20
1
3
5
7
9
11
13
15
17
19
21
23
22
XS608
SCART XS608
SCART
R667
75
R667
75
C
648
N
C
/0.
1uF
C
648
N
C
/0.
1uF
C694
NC/330pF
C694
NC/330pF
R661
NC/75
R661
NC/75
C605A
560pF
C605A
560pF
C685 1uF C685 1uF
R693 0 R693 0
C637
NC/330pF
C637
NC/330pF
R612A
75
R612A
75
R654A 47 R654A 47
C649
0.1uF
C649
0.1uF
R676
75
R676
75
L615
0
L615
0
R643A 1K R643A 1K
C660 47nF C660 47nF
3
1 2
D646
BAV99
D646
BAV99
R
686
N
C
/47K
R
686
N
C
/47K
C
650
N
C
/10nF
C
650
N
C
/10nF
R653A 47 R653A 47
C671
NC/330pF
C671
NC/330pF
L618 0 L618 0
3
1 2
D643NC/BAV99 D643NC/BAV99
3
1 2
D633
BAV99
D633
BAV99