JVC LT-42HB1BU Service Manual page 45

MAIN PWB CIRCUIT DIAGRAM (23/46) [RS232]
1
A
MAIN PWB(5/46) ATMEGA324P_UART
B
C
MAIN PWB(6/46)
D
All location are from 831 to 850
1
2 3
U831
TA
11 14
TA T1IN T1O
10 7
T2IN T2O
RA
12 13
RA
R1O R1IN
9 8
R2O R2IN
1 16
C1+ VCC
C831
3 15
C1- GND
4
C2+
104p/50V
2
V+
5 6
C2- V-
ILX232
C834
104p/50V
TA
RA
UART1_RX
Douglas_UART
UART1_TX
2 3
(No.YA707<Rev.001>)2-53
4
R831 101/1005
R832 101/1005
+5VSTB
C833
C832
SV060314B431N
104p/50V 106p/10V/2012
C835
104p/50V
+5VSTB
+3V3_A
R833 R834
472/1005 472/1005
3 2
Q831
FDV301N_NL
3 2
Q832
FDV301N_NL
UART_RX_OUT
UART_TX_OUT
4
2-54(No.YA707<Rev.001>)
5
TXD_PC
VGA connector
RXD_PC
TXD_PC
RXD_PC
RV831 RV832
SV060314B431N
+3V3_A
R836 R835
472/1005 472/1005
MAIN PWB ASS'Y(23/46)
[RS232]
HU-71100006
5
6
MAIN PWB(39/46)
A
JP831
THSE-0734T
1
3 R R
5
4
L L
2
B
C
D
6
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