Panasonic PT-VW431DU / PT-VW431DE / PT-VW431DEA (serv.man2) Service Manual ▷ View online
-81-
Control port functions
I/O Expander (TE7783)
PIN NO.
PORT NO.
SIGNAL NAME
DESCRIPTION
I/O
2
P1
PW_MODEO
HDBT Mode select
O
3
P2
PW_MODE1
O
4
P3
PW_MODE2
O
5
P4
PW_MODE3
O
20
XCS
XCS0
Chip select
I
21
XRD
XRD
Read enable
I
22
XWR
XWR
Write enable
I
36
RST
SRESET
Hardware reset
I
38
XI
CLOCK IN
I
39
XO
CLOCK OUT
O
47
XINT
XINT
TE7783 INTERRUPT
I
48
P21
HT_SCL
HDBT IIC
49
P22
HT_SDA
-
71
XCS2
EXTENSION CHIP SELECT
O
72
P31
PDIFO_TX
HDBT URAT Communication
-
73
P32
PDIFO_RX
-
74
P33
PDIF4_TX
BOX UART Communication
-
75
P34
PDIF4_RX
-
91
P11
HT_HOTPLUG
Hotplug to HDBT
O
92
P12
HT_HPGDET
Hotplug to HDBT
O
-82-
●
FA5502M <P.F. control, IC682>
●
MB95F353EPFT <Sub CPU, IC9885>
IC Block Diagrams
-83-
IC Block Diagrams
●
ICL3232ECV <RS-232C driver, IC3801>
●
CXD3551GG(E)<GAMMA, IC501>
-84-
IC Block Diagrams
●
CXA3828GL(E)
<S&H, IC561>
●
TLV320AIC3105 <Audio control, IC5001>
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