Operating Parts & Update Process - Daewoo DLX-32D1SMSB Service Manual

6-5. Operating parts & Update Process.
1) Key : Signal of Key board is transmitted directly to pin port B0~B6 of scaler.
2) IR : Signal of IR board is transmitted directly to IRRCVR0 of scaler.
3) LED : LED signal is outputted from IN1B4, IN1B5 to control pin 1, 2 of scaler.
4) Update : UART Port signal of Main board from serial port of PC is transmitted to RXD, TXD of scaler.
SCALER
(PW218)
Control B/D
LED
KEY
RCU
RECEIVER
UART
M
for A/S
U
X
STEREO JACK
UART
for TV
Internal CON.
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