JVC LT-19DB1BU/AX, Руководство по обслуживанию

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(No.YA697<Rev.001>)2-45 2-46(No.YA697<Rev.001>)
MAIN PWB ASS'Y (20/28)
[SCART2]
HU-71100004
lt-19db1bu_0514_18/30_0.0
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
SC2_RI
SC2_RO
SC2_BLUE
SC2_LO
SC2_GREEN
SC2_BLUE
SC2_L_OUT_O
SC2_LI
SC2_RED
SC2_GREEN
SC2_RED
SC2_R_OUT_O
SC2_L_OUT_O
SC2_LI
SC2_RI
SC2_RO
SC2_LO
SC2_R_OUT_O
SC2_FB
SC2_FB
+12V
+3V3_A
SCART2_CVBS
SCART2_LI
SCART2_RI
SCART2_R
SCART2_G
SCART2_B
SC2_CVBSO
SCART2_ID
OPAMP_P
SCART2_RO
SCART2_LO
Scart2_Mute
FB2
8Pin(Function Select/Slow Switching)
9.5V ~ 12V --> 4:3 Mode
4.5V ~ 7V -->16:9 Mode
0V ~ 2V --> TV Mode
16Pin(RGB Control/Fast Blanking)
1V ~ 3V -->RGB Mode
0V ~ 0.4V -->CVBS Mode
SCART Mode Detection
Attenuation = 10K/(10K+30K) = 0.25
All location are from 701 to 740
Comparator for trigerring
on 0.94V Fast Blank Signal
L703
OPEN-BLM18PG300SN1D
Q704
OPEN-KTD1304
2
13
R719
OPEN-683/F/1005
R708 OPEN-303/1005
C711
OPEN-10uF/16V/MVK/S
RV709
OPEN-SV060314B431N
R730
OPEN-102/1005
R702
OPEN-750/F/1005
R725
OPEN-683/F/1005
Q705
OPEN-KTD1304
2
13
C702
OPEN-331p/50V/1005
-
+
U661B
LM393MX
-
+
5
6
7
8
4
R718 OPEN-101/1005
RV701
OPEN-SV060305E101N
RV710
OPEN-SV060314B431N
R731
OPEN-102/1005
JP701 OPEN
AOR
1
AIR
2
AOL
3
GND(A)
4
GND(B)
5
AIL
6
BLUE
7
FNS
8
GND(G)
9
DATA2
10
GREEN
11
DATA1
12
GND(R)
13
GND(D)
14
R/CHROMA
15
RGBC
16
GND(V)
17
GND(R)
18
C/LUMA
19
CVBSI
20
GND
21
RV706
OPEN-SV060305E101N
+
-
+
-
U663
OPEN-TL072CD
+
-
+
-
2
3
6
5
1
7
8
4
RV704
OPEN-SV060305E101N
L705
OPEN-CIL21J1R8KNE
R707
OPEN-750/F/1005
C715
OPEN-100p/50V/1005
L702
OPEN-CIL21J1R8KNE
C708
OPEN-106p/25V/3216
RV703
OPEN-SV060305E101N
R715
OPEN-162/F/1005
L701
OPEN-CIL21J1R8KNE
C705
OPEN-102p/50V/1005
R705 OPEN-000/1005
C710
OPEN-100p/50V/1005
R712
OPEN-4021/F/1005
R706
OPEN-750/F/1005
RV708
OPEN-SV060314B431N
L704
OPEN-CIL21J1R8KNE
C714
OPEN-10uF/16V/MVK/S
RV702
OPEN-SV060305E101N
C713
OPEN-1
02p/50V/1005
C716
OPEN-104p/50V
C709
OPEN-
102p/50V/1005
R723
OPEN-224/1005
R710
OPEN-750/F/1005
RV705
OPEN-SV060314B431N
C707
OPEN-104p/50V
R704 OPEN-720/F/1005
C706
OPEN-10uF/16V/MVK/S
C703
OPEN-331p/50V/1005
R720
OPEN-224/1005
C701
OPEN-331p/50V/1005
R721
OPEN-153/F/1005
R714
OPEN-224/1005
C712
OPEN-10uF/16V/MVK/S
RV707
OPEN-SV060314B431N
R713
OPEN-103/1005
R724
OPEN-153/F/1005
R703
OPEN-750/F/1005
R722 OPEN-101/1005
R717
OPEN-224/1005
C704
OPEN-102p/50V/1005
R709
OPEN-103/1005
MAIN PWB
(19/28),(22/28)
MAIN PWB (19/28)
MAIN PWB
(12/28)
MAIN PWB
(12/28)
MAIN PWB (7/28)
MAIN PWB (12/28)
MAIN PWB
(12/28)
MAIN PWB CIRCUIT DIAGRAM (20/28) [SCART2]