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Plasma Fall 2008 42PG20
LVDS
Video Signals from the Main Board to the Control Board are referred to as Low
Voltage Differential Signals or LVDS. Their presence can be confirmed with the
Oscilloscope by monitoring the LVDS signals with no input signal selected while
pressing the Menu Button “on” and “off” with the Remote Control or Keypad.
Loss of these Signals would confirm the failure is on the Main Board!
Example of Normal Signals measured at 200mv/cm at 5µs/cm.
Menu Off
Menu ON
LVDS Cable
P121 on Control PWB shown.
Press two outside tabs inward
to release.
Control LVDS Signals
Control LVDS Signals
1
3
5
7
9
11
13
15
17
19
21
2
4
6
8
10
12
14
16
18
20
22
Connector P302 Configuration
- indicates signal pins.
P302 on Main Board
Summary of Contents for 42PG20 Series
Page 17: ...17 Plasma Fall 2008 42PG20 Rear Input Jacks Rear Input Jacks ...
Page 18: ...18 Plasma Fall 2008 42PG20 42PG20 Dimensions 42PG20 Dimensions ...
Page 45: ...45 Plasma Fall 2008 42PG20 STATIC TEST UNDER LOAD LIGHT BULB TEST ...
Page 98: ...98 Plasma Fall 2008 42PG20 TCP Tape TCP Tape Carrier Carrier Package Package ...
