Panasonic TC-26LX20

Table of Contents
Objective........................................................................................................................1
Features .........................................................................................................................2
LCD Technology............................................................................................................2
Dynamic Image Balancing............................................................................................3
3D Y/C Separation ......................................................................................................... 3
LCD High Definition TV Model Differences................................................................. 4
Differences between Models........................................................................................4
Circuit Board Layout..................................................................................................... 5
TC-22LR30 Circuit Boards............................................................................................5
Circuit Board Interconnection...................................................................................... 6
System Control Block...................................................................................................7
A Board (TC-22LR30) ....................................................................................................9
H Board (TC-26/32LX20) .............................................................................................10
K board (TC-22LR30, TC-26/32LX20) .........................................................................11
A Board (TC-26/32LX20) .............................................................................................12
Power Supply ..............................................................................................................13
Power Supply (TC-22LR30) ........................................................................................13
P Board - Primary Power......................................................................................... 14
AP Board - Secondary Power.................................................................................15
Tuner / FIP Power Supply (AP Board)....................................................................16
Over Current Protection Shutdown Circuits ......................................................... 17
14-Volt Power Down Detect Circuit........................................................................18
Over Voltage Protection _ AC Shutdown Latch Circuit ..........................................19
Power Supply (TC-26/32LX20).................................................................................... 20
P board (TC-32LH, TC-26/32LX20) - Primary Power............................................. 20