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PASCAL PDP Training PPM42M5H
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2. Manufacturing & Structure of Panel
Agenda 1. Introduction to PDP 2. Manufacturing & Structure of Panel 3. PDP Driving Characteristics 4. Pascal Training 5. Trouble shooting
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1. Introduction to PDP ● Concepts of PDP Phosphor UV radiation Visible
emission Generation Power supply P/S Driving circuit Transportation Conversion
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● Fluorescent Lamp and PDP
Principle of PDP light emission is the same as fluorescent lamp. 2 pieces of glass plates are placed with a small gap of 0.1mm, which is filled with discharge gas, and one of the glass plate has a transparent electrode. When 100 and several ten V of voltage is applied to the electrodes, discharge starts and generates UV light. This UV light reaches to the other glass plate on which phosphors (R,G,B) are pasted, and the phosphors convert UV light to visible light. < Fluorescent lamp > < PDP >
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● History of PDP 3’rd Generation 2’nd Generation 1’st Generation
Size : inch Price : Under $10/inch Definition : CRT Grade 1’st Generation Size : inch Efficiency : 2-5 lm/w Price : $10~$20/inch FAN Noise : No Fan Size : inch Definition : CRT Grade Preceding Use : Public Price : $20~$30/inch Efficiency : 1-2 lm/w Definition : PJTV FAN Noise : Under 30db / No Fan New Production Technique Size : 20 inch Efficiency : lm/w Use : High-Income bracket Price : $30~$50/inch FAN Noise : db Business Use : High-Income bracket Efficiency : lm/w / Business Establishing Mass Production Technique Use : Business Upgrading Mass Production Technique Upgrading Basic Technique 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007
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● Merits & Demerits of PDP
- Thin Type TV - Large Scale : 80” possible - Light Weight (42” Scale) : PDP 30kg / CRT: over 100kg : LCD 40” 32Kg - Wide Angleview - High Definition : cell pitch 0.1mm - Not-Sensitive to Magnetic Field - Full-color - Good Non linerity : No need for TFT like LCD < Demerits > - High Power Consumption - Low Brightness - High Cost - Low Lighting Efficiency - Image Retention - Operation Temperature - Acoustic Noise of Driving
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Manufacturing & Structure of Panel
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2. Manufacturing & Structure of Panel
● Cell Structure of Panel Bus electrode Dielectric ITO electrode MgO layer Barrier Phosphors Address Electrode Front panel Back panel
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● Cell Structure of Panel
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● Electro Arrangement of PDP(SDI Panel - SD)
1 , 2 : d r e s E l c t o Y S a n & u i X C m Y1 Y2 Y480 ∼ ∫ R1 G1 B1 R2 G2 B2 R3 R852 G852 B852 R f Black Stripe
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● Function of each PDP Cell Components
Transparent Electrode - Forming Electric Field - Transmitting visible Light Gas - Discharge - UV Generation Dielectric Layer - Current Limiting - Transmitting visible Light - Storing wall charge Bus Electrode - Path of Discharge Current - Preventing Voltage Drop MgO Thin Film - 2’nd Electron Radiation - Forming wall charge Phosphor Layer - Conversion of UV → Visible Light Driving Circuit - Discharge Switching Address Electrode - RGB Data Signal Input
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● Process of Panel Manufacturing
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● Process of Panel Manufacturing
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PDP Driving Characteristics
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3. PDP Driving Characteristics
● Function Description by board - 1 ■.SMPS(Switching Mode Power Supply) : It is the supplier to provide voltage and current to work the drive voltage and panel in each board. ■.X-MAIN BOARD : It makes the drive wave form by switching FETs to Timing Controlle coming from logic-board and supplies X electrode of panel with the drive wave form via connector. ■.Y-MAIN BOARD : It makes the drive wave form by switching FETs to Timing Controller coming from the logic-board and provides Y electrode of panel with the drive wave form via Scan Driver IC on Y buffer board in order. ■.LOGIC MAIN BOARD : It process image signal and performs buffering of the logic-main board (to create XY drive signal and output) and the address driver output signal. Then it supplies the output signal to the address driver IC(COF Module).
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● Function Description by board - 2
■.LOGIC BUFFER(E,F,G) : It delivers the data signal and control signal to the COF. ■.Y-BUFFER (Upper,Lower) : It is the board to impress the scan waveform on the Y board and consist of 2 boards (upper board and lower board). 8 Y-buffers are fixed at the scan driver (STV7617 of STC corp. : 64 or 65 Output). ■.AC Noise Filter : It has functions to remove noise(low frequency) coming from AC LINE and prevent surge. It gives serious effects on the safety regulations (EMC, EMI) according to AC filter. ■.COF (Chip on Flexible) : It impress the Va pulse to the address electrode in the address section and forms the address discharge by electric potential difference with scanning pulse to be dismissed by the Y electrode. It is made in the form of COF and one COF consists of 4 Data Drive IC (STV7610A :96 Output), otherwise single scan is made of 7 COF.
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Vex+Vw1 >Vf : Discharge
● Effect of Wall Charge X Y X Y Vw1 Vex+Vw1 >Vf : Discharge Vex X Y X Y X 0V Vw2 Vex-Vw2 < Vf : No discharge Y 0V X Y X Y Vex < Vf : No discharge Different Result with same input pulse Vex according to Wall Charge state
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● 1 Sub-Field Image Process(ADS – Address Data Separate)
Reset Address Sustain Function Sustain Erase Wall Charge Set Issue Operation margin Contrast Short Time Function Select On Cell Issue High Speed Low Voltage Low Failure Function Discharge On Cell Issue High Efficiency Low Voltage ERC Performance
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● Driving Waveform Specification (P3 Alexander)
Reset Address Sustain
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● Address Operation In order to display picture, select the cells.
IC118 Genesis Chip TDMS receiver DVI receiver Video A/D Scaler
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● Sustain Operation Display cells through strong Sustain discharge.
LVDS Output 5 pair of signals to DMD Module 1 pair video , 1 pair clock Display cells through strong Sustain discharge.
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● Combination of R,G,B Light
1 - Pixel Level of Luminance RED 4096 Levels Green 4096 Levels Blue 4096 Levels 68.7 Billion Colors
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● Luminance Control Number of Pulses 1 2 4 2048 Lights 1 2 4 2048
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● 1 Picture Structure by 12 Sub-Field - 1
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● 1 Picture Structure by 12 Sub-Field - 2
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● 1 Picture Structure by 12 Sub-Field - 3
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● 1 Picture Structure by 12 Sub-Field - 4
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● 1 Picture Structure by 12 Sub-Field - 5
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● 1 Picture Structure by 12 Sub-Field - ……
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● 1 Picture Structure by 12 Sub-Field - 11
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● 1 Picture Structure by 12 Sub-Field - 12
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3. Pascal Training
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● Comparison with other Models
Project Pascal(V4) Mozart (V3) Nelson (V3) Design Brightness 1100cd/m2 1000cd/m2 Contrast ratio 10000:1 3000:1 Tuner 2Tuner 1Tuner Audio out 10W x 2 15W x 2 Sound Stereo SRS Tru Surround XT Speaker Not Included Included Video input 1Rear 2Rear S-Video input Component Input Side Input - CVBS, S-Video DVI Power Consumption 330W Etc. Touch Pad, Melody
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● Additional Function of PPM42M5H
Video Wall Natural Mode
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● Picture of PPM42M5H Set [Back view]
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● Picture of Pascal PDP Module [Back view]
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● PDP Set Block Diagram
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● Wire Diagram
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● Pascal Signal Block Diagram
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● Picture of PPM42M5H Main Board
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● PPM42M5H Main Board Functional Description
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● Picture of PPM42M5H Sub Board
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● PPM42M5H SW update method
1. Disconnect the power cord of PDP 2. Connect the RS232C OUT terminal of your PC to the RS232C IN terminal of your PDP using the RS232C CABLE
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3. Copy 3files(appcode. hex, bootcode. hex flasher
3. Copy 3files(appcode.hex, bootcode.hex flasher.hex) and put them in the program folder. 4. Run the download program.
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5. Click Flash column and select FlashAll.inf
6. Check ‘Connection’ and ‘Modes’ at the following screen
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7. Click Flash to start the upgrade
8. Connect the power cord of PDP then program upgrade run automatically. 9. When the program upgrade is complete, then PDP will turn on automatically.
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[ Test Pattern : MSPG-945 Series Pattern #16 ]
● White Balance Adjustment If picture color is wrong, check White Balance condition Equipment : CA210, Patten : ABL Pattern Adjust W/B in Factory Mode Sub brightness and R/G/B Offset controls low light region Sub contrast and R/G/B Gain controls high light region Source Component : 1280*720/60Hz PC : 800*600/60Hz AV and DVI modes are adjusted automatically) Toshiba Patten High Light Low Light [ Test Pattern : MSPG-945 Series Pattern #16 ] *Color coordinate H/L : 280/295 +/ Ft +/- 2.0Ft L/L : 280/295 +/ Ft +/- 0.2Ft
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● White Balance Fine Tune Block
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4. Trouble shooting
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● Check List in advance ■. Each cable connection condition check
- Cable is connected correctly ? ■.Check Voltage - SMPS Video main Board, SMPS X,Y Drive board, SMPS Logic board ■. The chart below shows abnormal condition
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● No Power - Not operate front LED Not operate SMPS relay
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● SMPS relay on <-> off continually
Operate Protection circuit because of some Ass’y problem
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● No display but sound is normal
X or Y or Logic or Y Buffer board is abnormal main SMPS or DC-DC SMPS output Voltage is abnormal
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● PDP Dot Module SPEC – SDI module
※ Special Management Items 1) It is Cell-Defect if there are dark, bright, flickering cells over 2 points within 1.5cm in the boundary section. 2) Before vibration/dropping test, it should be decided whether the module is good / badness first. And after vibration/dropping test, if Cell-Defect happens more than preceding descriptions on Specification, it is Cell-Defect module.
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● A-Zone / B–Zone Size
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