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Panasonic Service and Technology Company
Technical Guide
th
10 Generation Plasma Display Television
National Training
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Panasonic Service and Technology Company Prepared by Cesar Perdomo and Jean Magloire Panasonic Service and Technology Company National Training Copyright © 2007 by Panasonic Services Company All rights reserved. Unauthorized copying and distribution is a violation of law. Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of poten
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Table of Contents Subject Page # Subject Page # 5 56 2007 Panasonic Plasma Line-up Troubleshooting (No Power/Dead Unit) Part 2 6 59 Models Comparison SOS Circuit Overview 9 62 High Resolution (FULL-HD Panel) DRV_RST SOS 13 63 TH-42PX75U Board Layout & Description Location of Q9302 14 64 TH-42PX75U Board Layout (Pictorial) Close-up View of Q9302 15 66 2006/2007 Signal Process/Switching Circuit 5 Blinks SOS (1) 16 68 Overall Block Diagram SOS (Drive-reset) 21 69 Standby Circuit D & C Boards Connec
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Table of Contents (Continued) Subject Page # Driver Setup Adjustment 96 Initialization Pulse Adjustment 97 Quick adjustment after P.C.B. exchange 98 4
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2007 Panasonic Plasma Line-up 5
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Models Comparison 6
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Models Comparison 7
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Models Comparison 8
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High Resolution (FULL-HD Panel) The Full-HD plasma panel boasts a total of about 2,070,000 pixels (1920 x 1080). It renders true-to-life HD images with about twice the resolution of a standard HD panel. Full-HD PDP HD PDP (approx. 2,070,000 pixels) (approx. 1,050,000 pixels) ● ● 1080 768 ● ● ● ● ● ● 1920 1366 *When compared to the 50PX600 (Image resolution about twice as high) About Twice the Resolution of a Standard HD PDP! About Twice the Resolution of a Standard HD PDP! 9
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th 10 Generation Plasma Television Board Layout 11
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TH-42PX75U Boards Layout & Description Panasonic started using single scan addressing in the 42” HD models last year when the 9th generation of Plasma TV was introduced. The single scan addressing was only used on standard definition models previously. For this generation, Panasonic has added the 50” models to the list of TV using single scan addressing. 13
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TH-42PX75U Board Layout (Pictorial) 14
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2006/2007 Signal Process/Switching Circuit The 2007 42” plasma models have less boards than the previous generation. The PA, DT, DG, H, and HC boards used on the 2006 42” models are now incorporated within the new A board of the 2007 models. 15
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Overall Block Diagram 16
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Overall Block Diagram The operation of the plasma TV can be divided into 3 different sections: 1. Power Supply Circuit The power supply circuit board (P board) provides voltages to the Signal switching/processing circuit and the Panel drive circuit. 2. Signal Switching/Processing Circuit Upon connecting the unit to the AC voltage source, the STB5V of the P board is provided to the A board for system control operation. The F_STB15V is also provided to the signal switching/processing circuit of
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th 10 Generation Plasma Television Power Supply 19
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