Changhong Electric PT4216, Service Manual, Page: 6 / 62

6
3 Remote Control
Receiving
assembly
It is composed of one indicator lamp, buzzer and one remote control receiving head,
which enable Users operate the TV conveniently and know its current working status
simply with a remote control box. Indicator lamp indicates unit on/off status and buzz
prompts validity of key operation.
4 Built-in Power
Board
assembly
It can transform AC 220V into multiple DC power, inc12VAU(audio power
amplifier)
，
+12V
，
+A6V
，
+D6V
，
+D3.3V
，
+34V and +5VS standby power supply .
5 K Board
module
It consists of 7 inductive buttons by which users can operate the TV freely.
6 Power amplifier
board assembly
Audio adopts two channel T-class digital audio power amplifier IC. Left and right channel
output 2X5W.
7 Screen
assembly
PDP panel is used to display image signal processed by main board.
8 Transfer board
assembly(only
used LG panel)
Transform each kind of DC voltage from panel(+9V
、
+12V
、
24V) into each kind of DC
voltage used by main board
（
+3.3
、
+D6V
、
A6V
、
+34V
、
+12V
、
+12VAU
）
.