Chapter 1
11
AT4220B
#
Item
Description
1
POWER
Press to turn your TV on/off.
2
DISPLAY
Press to display input/channel information (dependent on input/
source type).
3
MUTE
Press to toggle audio on and off.
4
Input buttons (TV/AV/
COMPONENT/PC)
Press to select correct input mode.
5
SLEEP
Press to set a time period after which the TV will switch itself to
standby (15, 30, 45, 60, 90 or 120 minutes).
6
Number keys
Press to select the TV channel.
7
RECALL
Press to return to the previous channel.
8
ENTER
Press to confirm channel number selection.
1
7
11
2
10
6
3
9
8
4
5
12
13
15
16
17
14
18
19
20
21
Summary of Contents for AT4220
Page 10: ...4 Chapter 1 LCD Main Board Block Diagram ...
Page 25: ...Chapter 1 19 For AT4220B Y Yellow Red White Blue Green R W 6 YLGHR 6 ...
Page 28: ...22 Chapter 1 For AT4220B For AT4220 ...
Page 47: ...Chapter 2 41 8 Release all the screws marked in red Then lift the TV back cover as shown ...
Page 56: ...50 Chapter 2 ...