Switch Mode Power Supply Overview - LG 42PQ30 Training Manual
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Also See for 42PQ30:
- Training manual (124 pages) ,
- Manual de usuario (123 pages) ,
- Specifications (2 pages)
Table of Contents
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Switch Mode Power Supply Overview
Switch Mode Power Supply Overview
Y-SUS Board
Main Board
Adjustments
The Switch Mode Power Supply Board Outputs to the :
VS
Drives the Display Panel Horizontal Grid
VA
Primarily responsible for Display Panel Vertical Grid
Used to develop Bias Voltages on the Y-SUS,
M5V VCC
X Drive, and Control Boards
16V
Audio B+ Supply
5V
Signal Processing Circuits
There are 2 adjustments located on the Power Supply Board VA and VS. The
5V VCC is pre-adjusted and fixed. All adjustments are made with relation to
Chassis Ground. Use "Full White Raster" 100 IRE
RV901
VA
VS
RV951
33
Preliminary Information 42PQ30
- Quick Links:
- 42Pq30 Circuit Board Layout
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Table of Contents
Troubleshooting
