Pioneer PDP-LX5090 Schematic

PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION

PDP-LX5090

For details, refer to "Important Check Points for good servicing".
FLAT SCREEN TV
PDP-LX5090
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
PDP-LX5090 WYSIXK5 AC 220 V to 240 V
PDP-LX5090 WYS5 AC 220 V to 240 V
ORDER NO.
ARP3480
T-IZS-001 MAY
2008 Printed in Japan
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This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.
WARNING This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation.
REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que les pièces de remplacement doivent avoir la même désignation.
SAFETY PRECAUTIONS
NOTICE : Comply with all cautions and safety related notes located on or inside the cabinet and on the chassis. The following precautions should be observed :
1. When service is required, even though the PDP UNIT an isolation transformer should be inserted between the power line and the set in safety before any service is performed.
2. When replacing a chassis in the set, all the protective devices must be put back in place, such as barriers, nonmetallic knobs, adjustment and compartment covershields, isolation resistor­ capacitor, etc.
3. When service is required, observe the original lead dress. Extra precaution should be taken to assure correct lead dress in the high voltage circuitry area.
4. Always use the manufacture's replacement components. Especially critical components as indicated on the circuit diagram should not be replaced by other manufacture's. Furthermore where a short circuit has occurred, replace those components that indicate evidence of overheating.
5. Before returning a serviced set to the customer, the service technician must thoroughly test the unit to be certain that it is completely safe to operate without danger of electrical shock, and be sure that no protective device built into the set by the manufacture has become defective, or inadvertently defeated during servicing. Therefore, the following checks should be performed for the continued protection of the customer and servicetechnician.
6. Perform the following precautions against unwanted radiation and rise in internal temperature.
• Always return the internal wiring to the original styling.
• Attach parts (Gascket, Ferrite Core, Ground, Rear Cover, Shield Case etc.) surely after disassembly.
7. Perform the following precautions for the PDP panel.
• When the front case is removed, make sure nothing hits the panel face, panel corner, and panel edge (so that the glass does not break).
• Make sure that the panel vent does not break. (Check that the cover is attached.)
• Handle the FPC connected to the panel carefully. Twisting or pulling the FPC when connecting it to the connector will cause it to peel off from the panel.
8. Pay attention to the following.
• Pay extreme caution when the front case and rear panel are removed because this may cause a high risk of disturbance to TVs and radios in the surrounding.
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SAFETY INFORMATION

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Leakage Current Cold Check
With the AC plug removed from an AC power source, place a jumper across the two plug prongs. Turn the AC power switch on. Using an insulation tester (DC 500V), connect one lead to the jumpered AC plug and touch the other lead to each exposed metal part (input/output terminals, screwheads, metal overlays, control shafts, etc.), particularly any exposed metal part having a return path to the chassis. Exposed metal parts having a return path to the chassis should have a minimum resistor reading of 4 MΩ. The below 4 MΩ resistor value indicate an abnormality which require corrective action. Exposed metal parts not having a return path to the chassis will indicate an open circuit.
Leakage Current Hot Check
Plug the AC line cord directly into an AC power source (do not use an isolation transformer for this check). Turn the AC power switch on. Using a "Leakage Current Tester (Simpson Model 229 equivalent)", measure for current from all exposed metal parts of the cabinet (input/output terminals, screwheads, metal overlays, control shaft, etc.), particularly any exposed metal part having a return path to the chassis, to a known earth ground (water pipe, conduit, etc.). Any current measured must not exceed 1 mA.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE SET TO THE CUSTOMER.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in PIONEER set have special safety related characteristics. These are often not evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in this Service Manual. Electrical components having such features are identified by marking with a > on the schematics and on the parts list in this Service Manual. The use of a substitute replacement component which dose not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.
Leakage current tester
Reading should not be above 1 mA
Device under test
Test all exposed metal surfaces
Also test with plug reversed (Using AC adapter plug as required)
Earth ground
AC Leakage Test
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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol. Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris. Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs. In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages. If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure connections and suitable usage. Please exchange the power cord if necessary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries. Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification. Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
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CONTENTS

SAFETY INFORMATION.......................................................................................................................................................... 2
1. SERVICE PRECAUTIONS.................................................................................................................................................... 6
1.1 NOTES ON SOLDERING ...............................................................................................................................................6
1.2 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT .............................................................................7
2. SPECIFICATIONS ................................................................................................................................................................. 8
2.1 ACCESSORIES.............................................................................................................................................................. 8
2.2 SPECIFICATIONS .......................................................................................................................................................... 9
2.3 PANEL FACILITIES....................................................................................................................................................... 10
3. BASIC ITEMS FOR SERVICE ............................................................................................................................................13
3.1 CHECK POINTS AFTER SERVICING ......................................................................................................................... 13
3.2 QUICK REFERENCE ...................................................................................................................................................14
3.3 PCB LOCATIONS ......................................................................................................................................................... 16
4. BLOCK DIAGRAM .............................................................................................................................................................. 18
4.1 OVERALL WIRING DIAGRAM (1/2)............................................................................................................................. 18
4.2 OVERALL WIRING DIAGRAM (2/2)............................................................................................................................. 20
4.3 OVERALL BLOCK DIAGRAM (1/2) ..............................................................................................................................22
4.4 OVERALL BLOCK DIAGRAM (2/2) ..............................................................................................................................24
4.5 POWER SUPPLY UNIT ................................................................................................................................................ 26
4.6 50F X DRIVE ASSY......................................................................................................................................................28
4.7 50F Y DRIVE, 50F SCAN A and B ASSYS ..................................................................................................................29
4.8 POWER SUPPLY BLOCK of 50F X, Y DRIVE and 50F SCAN A and B ASSYS ......................................................... 30
4.9 50F ADDRESS L and S ASSYS................................................................................................................................... 31
4.10 50F DIGITAL ASSY ....................................................................................................................................................32
4.11 POWER SUPPLY BLOCK of MAIN ASSY.................................................................................................................. 34
4.12 IO_AUDIO ASSY ........................................................................................................................................................36
4.13 LED and IR ASSYS .................................................................................................................................................... 38
5. DIAGNOSIS ........................................................................................................................................................................ 39
5.1 POWER SUPPLY OPERATION ....................................................................................................................................39
5.2 DIAGNOSIS FLOWCHART OF FAILURE ANALYSIS .................................................................................................. 45
5.3 DIAGNOSIS OF PD (POWER-DOWN)......................................................................................................................... 66
5.4 DIAGNOSIS OF SD (SHUTDOWN) ............................................................................................................................. 70
5.5 NON-FAILURE INFORMATION ....................................................................................................................................74
5.6 OUTLINE OF THE OPERATION ..................................................................................................................................76
5.7 OUTLINE OF RS-232C COMMAND ............................................................................................................................ 81
5.8 LIST OF RS-232C COMMANDS ..................................................................................................................................82
5.9 DETAILS OF EACH COMMANDS ................................................................................................................................ 91
6. SERVICE FACTORY MODE ............................................................................................................................................. 105
6.1 OUTLINE OF THE SERVICE FACTORY MODE ........................................................................................................ 105
6.2 DETAILS OF FACTORY MENU ..................................................................................................................................113
7. DISASSEMBLY ................................................................................................................................................................. 137
7.1 FLOWCHART OF REMOVAL ORDER .......................................................................................................................137
7.2 DISASSEMBLY........................................................................................................................................................... 138
8. EACH SETTING AND ADJUSTMENT .............................................................................................................................. 147
8.1 ADJUSTMENT REQUIRED WHEN THE UNIT IS REPAIRED OR REPLACED........................................................ 147
8.2 BACKUP OF THE EEPROM (DIGITAL ASSY) ........................................................................................................... 150
8.3 HOW TO CLEAR HISTORY DATA .............................................................................................................................. 153
8.4 ADJUSTMENT WHEN THE SERVICE PANEL ASSY IS REPLACED .......................................................................154
8.5 ADJUSTMENT WHEN THE DRIVE ASSYS ARE REPLACED.................................................................................. 165
8.6 ADJUSTMENT WHEN THE MAIN OR IO_AUDIO ASSY IS REPLACED.................................................................. 168
9. EXPLODED VIEWS AND PARTS LIST............................................................................................................................. 170
9.1 PACKING SECTION ...................................................................................................................................................170
9.2 REAR SECTION......................................................................................................................................................... 172
9.3 FRONT SECTION ...............................................................................................................
9.4 CHASSIS SECTION (1/2)........................................................................................................................................... 176
9.5 CHASSIS SECTION (2/2)........................................................................................................................................... 178
9.6 PANEL CHASSIS SECTION.......................................................................................................................................180
9.7 MULTIBASE SECTION............................................................................................................................................... 182
9.8 PDP SERVICE ASSY ................................................................................................................................................. 184
.......................................174
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• For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering.
• Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron.
Do NOT use a soldering iron whose tip temperature cannot be controlled.
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden).
The following lead-free solders are available as service parts:
• Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia.
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1. SERVICE PRECAUTIONS

1.1 NOTES ON SOLDERING

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Fig. High Voltage Generating Point (Rear view)
: Part is the High Voltage Generating Points other than the Charged Section.
50F Y DRIVE Assy
Plate Y POWER SUPPLY Unit 50F X DRIVE Assy Plate X
50F SCAN A Assy50F SCAN B Assy
The places where the commercial AC power is used without passing through the power supply transformer. If the places are touched, there is a risk of electric shock. In addition, the measuring equipment can be damaged if it is connected to the GND of the charged section and the GND of the non-charged section while connecting the set directly to the commercial AC power supply. Therefore, be sure to connect the set via an insulated transformer and supply the current.
1. Power Cord
2. AC Inlet
3. Power Switch
4. Fuse (In the POWER SUPPLY Unit)
5. STB Transformer and Converter Transformer (In the POWER SUPPLY Unit)
6. Other primary side of the POWER SUPPLY Unit
AC inlet Power switch
: Part is Charged Section.
Charged Section
The places where voltage is 100 V or more except for the charged places described above. If the places are touched, there is a risk of electric shock. The VSUS voltage remains for several minutes after the power to the unit is turned off. These places must not be touched until about 10 minutes after the power is turned off, or it is confirmed with a tester that there is no residual VSUS voltage.
If the procedures described in “5.6 [1] PANEL DRIVE-POWER ON/OFF FUNCTION” are performed before the power is turned off, the voltage will be discharged in about 30 seconds.
50F X DRIVE Assy .......................................................... (205 V)
50F Y DRIVE Assy ......................................... (−280 V to 420 V)
50F SCAN A Assy .......................................... (−280 V to 420 V)
50F SCAN B Assy ........................................... (−280 V to 420 V)
High Voltage Generating Point
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1.2 CHARGED SECTION AND HIGH VOLTAGE GENERATING POINT

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Remote control unit (AXD1564)
Power cable
Cable tie (for ferrite core)
Cable clamp (×4)
Ferrite core (ATX1039)
Dry cell battery (R6, AA) (×2) (for remote control unit)
Ferrite core
Cleaning cloth (AED1285)
Warranty card
Operating instructions (×2) (ARE1492: WYSIXK5 only) (ARC1606: WYSIXK5 only) or (ARC1618: WYS5 only)
Binder Assy (AEC2158)
For Europe, except UK and Republic of Ireland
For UK and Republic of Ireland
Only the power cable appropriate for your country or region is supplied:
(ADG1214)
(ADG1223: WYSIXK5 only)

2. SPECIFICATIONS

2.1 ACCESSORIES

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2.2 SPECIFICATIONS

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Front Section

2.3 PANEL FACILITIES

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Remote Control Unit
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Items to be checked after repair (PDP)
To ensure the quality of the product after repair, check the recommended items shown below:
See the table below for the items to be checked regarding video and audio:
Item to be checked regarding video Item to be checked regarding audio
Block noise Distortion Horizontal noise Noise Dot noise Volume too low Disturbed image (video jumpiness) Volume too high Too dark Volume fluctuating Too bright Sound interrupted Mottled color
No. Procedures Item to be checked
1
Check if all the symptoms pointed out by the customer have been addressed.
The symptoms in question must not be reproduced.
2 Connect the peripheral equipment.
Connect all external peripheral equipment as originally connected and check if the connections are correct.
3 Check the video and audio.
Tune in to the stations that the customer would normally receive and check if video and audio are normal.
4 Check the buttons and controls.
Use the buttons and controls on the remote control unit and main unit and check if they operate properly.
5 Check the cabinet.
Check for any scratches or dirt that have been made or attached on the cabinet after receiving the product for repair.
Name Part No. Remarks
Used to fan cleaning. Refer to “9.4 CHASSIS SECTION (1/2)”.
Cleaning paper GED-008
Cleaning
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3. BASIC ITEMS FOR SERVICE

3.1 CHECK POINTS AFTER SERVICING

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Notes when visiting for service
1. Notes when disassembling/reassembling
1 Rear case
When reassembling the rear case, the screws must be tightened in a specific order. Be careful not to tighten them in the wrong order forcibly. For details, see "Rear Case" in "7. DISASSEMBLY".
2 Attaching screws for the HDMI connector
When attaching the HDMI connector after replacing the Main Assy, secure the HDMI connector manually with a screwdriver, but not with an electric screwdriver. If you tighten the screws too tightly with an electric screwdriver, the screw heads may be damaged, in which case the screws cannot be untightened/tightened any more.
2. On parts replacement
1 How to discharge before replacing the Assys
A charge of significant voltage remains in the Plasma Panel even after the power is turned off. Safely discharge the panel before replacement of parts, in either manner indicated below: A:
Let the panel sit at least for 3 minutes after the power is turned off. B: Turn the Large Signal System off before the power is turned off then, after 1 minute, turn the power off. For details, see "5.6 [1] PANEL DRIVE-POWER ON/OFF FUNCTION".
2 On the settings after replacement of the Assys
Some boards need settings made after replacement of the Assys. For details, see "8. EACH SETTING AND ADJUSTMENT".
3. On various settings
1 Setting in Factory mode
After a Mask indication into the panel is performed, be sure to set the Mask setting to "OFF" then exit Factory mode.
Adjustments and Settings after replacement of the Assys (Procedures in Factory mode)
1. Digital Video Assy: Transfer of backup data
1 Select {PANEL FACTORY}, {ETC}, then {BACKUP DATA}. (After entering Factory mode, press [MUTING] once, press [ENTER/SET], press [j] seven times, then press [ENTER/SET].) 2 Select {TRANSFER}, using [l], then hold [ENTER/SET] pressed for at least 5 seconds. 3 After transfer of backup data is completed, {ETC} is automatically selected, and the LED on the front panel returns to normal lighting.
2. MAIN Assy: Execution of FINAL SETUP.
1 Select {INITIALIZE} then {FINAL SETUP}, then press [ENTER/SET]. (After entering Factory mode, press [MUTING] three times, then press [j] four times.) 2 Select "YES", using [l]. Then hold [ENTER/SET] pressed for at least 5 seconds. 3 After "FINAL SETUP IS COMPLETE" is displayed on the screen, turn the POWER switch of the main unit off.
3. POWER SUPPLY Unit: Clearance of the accumulated power-on count and maximum temperature value
1 Select {PANEL FACTORY}, {ETC}, then {P COUNT INFO}. (After entering Factory mode, press [MUTING] once, press [ENTER/SET], press [j] seven times, press [ENTER/SET], then press [j] six times.) 2 Press [l] to select "CLEAR". Hold [ENTER/SET] pressed for at least 5 seconds. After clearance is completed, "ETC" is automatically selected. Clear the maximum temperature value (MAX TEMP) in the same manner.
4. Other Assys: Clearance of the maximum temperature value
1 Select {PANEL FACTORY}, {ETC}, then {MAX TEMP}. (After entering Factory mode, press [MUTING] once, press [ENTER], press [j] seven times, press [ENTER/SET], then press [j] seven times.) 2 Press [l] to select "CLEAR". Hold [ENTER/SET] pressed for at least 5 seconds. After clearance is completed, "ETC" is automatically selected.
How to locate several items on the Factory menu
1. Confirmation of accumulated power-on time and power-on count
Select {INFORMATION} then {HOUR METER}. (After entering Factory mode, press [j] four times.)
2. Confirmation of the Power-down and Shutdown histories
1 Panel system
PD: Select {PANEL FACTORY} then {POWER DOWN}. (After entering Factory mode, press [MUTING] once, press [ENTER/SET], then press [j] two times.) SD: Select {PANEL FACTORY} then {SHUT DOWN}. (After entering Factory mode, press [MUTING] once, press [ENTER/SET], then press [j] three times.)
2 MTB section
Select {INFORMATION} then {MAIN NG}. (After entering Factory mode, press [j] two times.)
3. How to display the Mask indication
1 Mask indication in the panel side
1. Select {PANEL FACTORY} then {RASTER MASK SETUP}. (After entering Factory mode, press [MUTING] once, press [ENTER/SET], then press [j] 8 times.)
2. Press [ENTER/SET], then select a Mask indication, using [i] or [j].
{ } : Item on the Factory menu [ ] : Key on the remote control unit " " : Screen indication
Quick Reference upon Service Visit 1
Notes, PD/SD diagnosis, and methods for various settings
Item
SD SD Subcategory
No. of LEDs flashing
1 Rewriting software
If the DISPLAY key is pressed during shutdown, the orange LED flashes. For indication patterns other than described below, see 5.4 [2].
2 No backup
LED Display Information
Red 1
Red 2
Red 3
Red 4
Red 6
Red 7
Red 8
Red 10
Red 11
Red 12
Red 15
Blue 1
Blue 2
Blue 3
Blue 4
Blue 5
Blue 6
Blue 7
Blue 8
Blue 9
Blue 10
Blue 11
Blue 12
Blue 13
Blue 15
Red Blue
SQ_LSI Module device communication DIGITAL-RST2 Panel temperature Audio Module UCOM communication Main 3-wire serial communication Main IIC communication Main UCOM communication FAN Unit high temperature D-TUNER communication MTB-RST2/RST4 Main EEPROM
Subcategory confirmation procedure
MR POWER POWER SCAN SCN-5V Y-DCDC Y- S U S ADRS X-DCDC X-SUS DIG-DCDC UNKNOWN
B R
B R
B R
B R
3 PD (2-15)
4 SD (1-15)
For indication patterns other than described below, see 5.1 [1].
PD/SD
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EEPROM BACKUP DAC PANEL high temperature PANEL low temperature Tuner 1 MSP/MAP AV Switch RGB Switch Main VDEC VDEC-SDRAM AD/PLL HDMI COFDEM (PDP-LX5090 only) RST2 RST4

3.2 QUICK REFERENCE

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Structure of Layers in Service Factory Mode
INFORMATION mode
1. VERSION (1) The software versions for each microcomputer
2. VERSION (2) The Flash memory versions for each device
3. MAIN NG The shutdown message ID/event times (Going Clear mode by [ENTER/SET] key) 3-1. CLEAR
Select Yes by [l] key l pushing and hold [ENTER/SET] key
4. TEMPERATURE The temperature/FAN rotating status/Room Light Sensor
5. HOUR METER The HOUR METER/P-COUNT information
6. HDMI SIGNAL INFO 1 The information of HDMI information files
7. HDMI SIGNAL INFO 2 The information of HDMI information files
8. VDEC SIGNAL INFO 1 The signal information of VDEC
9. VDEC SIGNAL INFO 2 The signal information of VDEC
PANEL FACTORY mode Refer to [PANEL FACTORY MODE]
OPTION mode
1. CH PRESET For production line use
2. Digital AFT For production line use (PDP-LX5090H only)
3. SYNC DET For technical analysis
4. CTI For technical analysis
INITIALIZE mode
1. SIDE MASK LEVEL For factory use 1-1. SIDE MASK LEVEL
2. FINAL SETUP Set to Factory default settings (it should perform after 2-1. DATA RESET replacing a MAIN Assy)
3. DTB SERVICE MODE
Information for the Digital Tuner Service Menu is displayed
3-1. MODE SHIFT
4. Wide XGA AUTO For technical analysis
5. AUTO ADJUSTMENT
Quick Reference upon Service Visit 2
Mode transition and structure of layers in Service Factory mode
INFORMATION mode
1. VERSION (1)
2. VERSION (2)
3. MAIN NG
4. TEMPERATURE
5. HOUR METER
6. HDMI SIGNAL INFO 1
7. HDMI SIGNAL INFO 2
8. VDEC SIGNAL INFO 1
9. VDEC SIGNAL INFO 2
PANEL FACTORY mode
1. PANEL INFORMATION
2. PANEL WORKS
3. POWER DOWN
4. SHUT DOWN
5. PANEL-1 ADJ
6. PANEL-2 ADJ
7. PANEL FUNCTION
8. ETC.
9. RASTER MASK SETUP
10. PATTEN MASK SETUP
11. COMBI MASK SETUP
INITIALIZE mode
1. SIDE MASK LEVEL
2. FINAL SETUP
3. DTB SERVICE MENU
4. Wide XGA AUTO
5. AUTO ADJUSTMENT
OPTION mode
1. CH PRESET
2. Digital AFT (*)
3. SYNC DET
4. CTI
(*): PDP-LX5090H only
• To shift to another mode, press [MUTING].
• To shift to another item in a specific mode, press [i] or [j].
• To shift to the next nested layer below for an item with a "(+)" indication, press [ENTER/SET]. To return to the next nested layer above, also press [ENTER/SET].
Mode transition in Service Factory mode
Up
Down
Structure of Layers in Panel Factory Mode 2
8. ETC (+)
1. BACKUP DATA
2. DIGITAL EEPROM
3. PD INFO.
4. SD INFO.
5. HR-MTR INFO.
6. PM/B1-B5
7. P COUNT INFO.
8. MAX TEMP.
9. MIRROR
10. CLS
9. RASTER MASK SETUP (+)
1. MASK OFF
2. RST MASK 01
• • • • •
10. PATTERN MASK SETUP (+)
1. MASK OFF
2. PTN MASK 01
• • • • •
11. COMBI MASK SETUP (+)
1. MASK OFF
2. CMB MASK 01
• • • • •
Structure of Layers in Panel Factory Mode 1
1. PANEL INFORMATION Version indication of the panel
2. PANEL WORKS Indications of the accumulated power-on time and power-on count of the panel
3. POWER DOWN Indication of the Power-down history
4. SHUT DOWN Indication of the Shutdown history
5. PANEL-1 ADJ (+)
1. VOL SUS
2. VOL OFFSET
• • • • •
10. RESET1ST_KSB
• • • • •
25. SUS FREQ
6. PANEL-2 ADJ (+)
1. R-HIGH
2. G-HIGH
• • • • •
6. B-LOW
7. ABL
7. PANEL FUNCTION (+)
1. R-LEVEL
• • • • •
To "Structure of Layers in Panel Factory Mode 2"
For AM noise prevention (Depending on the mode, brightness of the screen changes.) For confirmation of the result of the setting change, the unit must be turned off then back on again.
Items for factory use
Items for factory use
Settings required after replacement of the panel
For transferring backup data (after replacement of the DIGITAL Assy) Change the adjustment status of the DIGITAL Assy.
For use while the Raster Mask is displayed. Use [i] or [j] to select the type of mask. Use [l] or [k] to select the sequence.
Switch the Mirror display mode. Switch the function when checking the color sensor level.
For use while the Pattern Mask is displayed. Use [i] or [j] to select the type of mask. Use [l] or [k] to select the sequence.
For use while the Combination Mask is displayed. Use [i] or [j] to select the type of mask. Use [l] or [k] to select the sequence.
For clearance of data for the corresponding items. The clearing method is the same: Select "CLEAR", then hold [ENTER/SET] pressed for at least 5 seconds.
For the WB adjustment of the panel and ABL adjustment. A setting table is available for each signal frequency.
6 7 8
A
B
C
D
E
F
PDP-LX5090
5
6 7 8
15
1
50F Y DRIVE
Assy
MAIN
Assy
50F DIGITAL
Assy
50F X DRIVE
Assy
50F SCAN A Assy
50F ADDRESS L
Assy
50F ADDRESS S
Assy
RLS Assy
IR Assy
50F ADDRESS L
Assy
50F ADDRESS L
Assy
PC Assy IO_AUDIO Assy
50F ADDRESS L
Assy
50F ADDRESS L
Assy
50F ADDRESS L
Assy
50F ADDRESS S
Assy
SIDE IO
Assy
SIDE KEY Assy
LED Assy
FAN CONNECT Assy
POWER SW Assy
SENSOR Assy
50F SCAN B Assy
POWER SUPPLY
Unit
Mark No. Description Part No.
LIST OF ASSEMBLIES
NSP 50F ADDRESS L ASSY AWW1348 NSP 50F ADDRESS S ASSY AWW1349
NSP 50F SCAN A ASSY AWW1350 IC2801 - IC2808 AN16184A
NSP 50F SCAN B ASSY AWW1351 IC2901 - IC2908 AN16184A
SENSOR ASSY AWW1340 50F DIGITAL Assy AWW1347
50F X DRIVE ASSY AWV2546 50F Y DRIVE ASSY AWV2547
Mark No. Description Part No.
> MAIN ASSY AWV2555
IO_AUDIO ASSY AWW1354 SIDE IO ASSY AWW1358 PC ASSY AWW1359 SIDE KEY ASSY AWW1361 LED ASSY AWW1362
IR ASSY AWW1363 FAN CONNECT ASSY AWW1364 RLS ASSY AWW1365 POWER SW ASSY AWW1366
> POWER SUPPLY UNIT AXY1200
PDP SERVICE ASSY 509FE AWU1342
Rear view
Front view Front view
NOTES: - Parts marked by “NSP” are generally unavailable because they are not in our Master Spare Parts List.
-
The > mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
Note: The wiring shown in the photo is different from the actual wiring, because the product in the photo is a prototype. Upon servicing, be sure to restore the original wiring of the unit after repair work.
2 3 4

3.3 PCB LOCATIONS

A
B
C
D
E
F
16
1
2 3 4
PDP-LX5090
5
6 7 8
A
B
C
D
E
F
PDP-LX5090
5
6 7 8
17
1
2 3 4

4. BLOCK DIAGRAM

4.1 OVERALL WIRING DIAGRAM (1/2)

A
B
C
D
E
F
18
1
2 3 4
PDP-LX5090
5
OVERALL DIAGRAM PDP-LX5090
k
When ordering service parts, be sure to refer to “EXPLODED VIEWS and PARTS LIST” or
“PCB PARTS LIST”.
k
The > mark found on some component parts indicates the importance of the safety factor
of the part. Therefore, when replacing, be sure to use parts of identical designation.
6 7 8
A
B
C
D
E
PDP-LX5090
5
6 7 8
F
19
1
2 3 4

4.2 OVERALL WIRING DIAGRAM (2/2)

A
B
C
D
E
F
20
1
2 3 4
PDP-LX5090
5
OVERALL DIAGRAM PDP-LX5090
6 7 8
A
B
C
D
E
F
PDP-LX5090
5
6 7 8
21
1
TE1
D21
OR
V+3_3V_D
MODULE
M30620
LVDS
ADR_PD1
SCAN,YSUS
TEMP1
DAC
UART
SW
V+3V_EEP
ADR_PD _MSK
SCL,SDA
PULSE
D14
D15
V+1_1V_D V+1_8V_D V+2_5V_D V+3_3V_D
V+1_1V_D
V+2_5V_D
V+2_5V_D V+1_2V_D
V+2_5V_D
V+1_8V_D
D16
D13
MASK
V+12V
V+10V
RELAY1
V+6_5V V+
PSW2
Vsus_AD
Y*****_PD
SCN**_PD
VOFS_ADJ,YPRST_ADJ,
DAC_**
XKOFS*_ADJ
V+3_3V_D V+10V
V+3_3V_D V+10V
V+3_3V_D V+10V
V+3_3V_D V+10V
SUS_MUTE
V+1_2 V+2_5 V+3_3
D26
UART(CS
DET_CS
D12
SQ_NON
STOP_SQ
YSUS
ADRS_P
V+3VACTV
WE_SQ
ODI_R, G, B
SQ_SEL
RELAY2
MULTI_OE
UART
SCAN B ASSY (LOW-SIDE)
SCAN A ASSY (HIGH-SIDE)
SCAN IC
IC2801
SCAN IC
IC2802
SCAN IC
IC2803
SCAN IC
IC2804
SCAN IC
IC2805
SCAN IC
IC2806
SCAN IC
IC2807
SCAN IC
IC2808
SCAN IC
IC2901
SCAN IC
IC2902
SCAN IC
IC2903
SCAN IC
IC2904
SCAN IC
IC2905
SCAN IC
IC2906
SCAN IC
IC2907
SCAN IC
IC2908
WIRE HARNESS
FFC
NOTE:
Y DRIVE ASSY
SENSOR ASSY
D24
D25
10V
REG.
1.2V REG.
1.8V REG.
OR
Pulse Width
SUB-
XY DRV
PATT
PE
TRAN
PEG
I
DC-DC
CONVERTER
BD8606FV
IC3801
VADR4
V+75V
V+75V
V+10V
V+10V
V+3.3V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
CLK / LE / HBLK LBLK/R/G/B
VADR1
VADR2
VADR3
VDDLS1
VDDLS2
VDDLS3
VADR1
VADR2
VADR3
VDDLS1
VDDLS2
VDDLS3
VDDLS4
AN/P BN/P CN/ P DN/ P CLKN/ P
AN/P BN/P CN/P DN/P CLKN/P
ADDRESS S ASSY
ADDRESS L ASSY
AD2
CN1801
AD2
CN1601
IC1601
LVDS
RECEIVER
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
IC1801
LVDS
RECEIVER
AD1
CN1802
AD1
CN1602
VADR1 VADR2
VADR3 VADR4
V+10V
V+75V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
VDDLS1 VDDLS2 VDDLS3 VDDLS4
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
AN/P BN/P CN/P DN/P CLKN/P
ADDRESS L ASSY
AD2
CN1601
IC1601
LVDS
RECEIVER
AD1
CN1602
VADR1 VADR2
VADR3 VADR4
V+10V
V+75V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
VDDLS1 VDDLS2 VDDLS3 VDDLS4
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
AN/P BN/P CN/P DN/P CLKN/P
ADDRESS L ASSY
AD2
CN1601
IC1601
LVDS
RECEIVER
AD1
CN1602
VH IC5V
VH IC5V
PSUS
PSUS
VH IC5V
VH
IC5V
Y3
SA1
SB1
Y4
SCAN SIGNAL
VADR
VSUS
STB5.1V
+6.5V
DRF_SW_B
M_SW_DET
EXT_PD
P2P1
VADR
VSUS
P6
+17V
+6.5V
P5
P9
P7
+6.5V
STB3.4V
+6.5V
+12V
+17V
+12V
+17V
+6.5V
+17V
+12V
M_SW_DET
+17V
AC_DET
VSUS_ADJ
P4
PS_PD
RELAY
DRF_B
AC_DET
PD_TRIG_B
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH
IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
SCAN SIGNAL
VH
VH
IC5V
IC5V
IC202
Q202
SECONDARY
PRIMARY
T702
T901
T501
T101
Y 1
PSUS
PSUS
Scan Signal
IC5V
Y 5
+17V
IC5V/VF
DC/DC CONV.
IC5V
VC_P
+17V
15V DC/DC CONV.
VC_S
VC_U
+5V
Drive Signal
VSUS
VYPRST
VSNOFS
VKNOFS2
VKNOFS3
VKNOFS4
VKNOFS1
MAIN DC/DC CONV.
VH
Y 2
Photo Coupler
BLOCK
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
SUS
PreDrive
+17V
VC_S
H-MSK
VC_S
L-MSK
+17V
KNOFS1 KNOFS3
BLOCK
VKNOFS1
VKNOFS3
RESONANCE BLOCK
VC_U
+17V
Drive Signal
VC_P
PRST
BLOCK
VYPRST
RST-D BLOCK
+17V
+17V
KNOFS4 SOFT-G
BLOCK
VC_S
VKNOFS4
+17V
SNOFS KNOFS2 BLOCK
VSNOFS
VKNOFS2
VC_S
Drive Signal
SUSOUT
MSK-S
Gate Signal
Y 6
+17V
+5V
VSUS
+6.5V
REG
RESONANCE BLOCK
VC_U +17V
VADR
VADR
VADR
LOGIC BLOCK
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
DRIVER IC
IC1851
DRIVER IC
IC1861
DRIVER IC
IC1871
2 3 4

4.3 OVERALL BLOCK DIAGRAM (1/2)

A
B
C
D
E
F
22
1
PDP-LX5090
2 3 4
5
D23
OR
V+6_5
MODULE UCOM
M30620F CSGP
PD
PD_TRG_B,
AC_DET, M_SW_DET
XSUS
LVDS
VDI
AND
AND
AND
DRF_B
RELAY1
DRF_SW_B
PSW1
PSW21
OR
RELAY
RESET
V+3VACTV
RST_SQ
V+3V_D
RST2
SUS_MUT
EVI_R, G, B
KDD
D22
D20
D19D18D17
AND
RESET
THEATE
PS_PD
DRF_B
PSW2
EXT_PD
X****_PD
PSIZE
AND
RESETX
V+1_2V_D V+2_5V_D V+3_3V_D
PD_MUTE
ADRS_P
V+3_3V_D
GPIO8
V+3VACTV
EVI_SYNC
RELAY2
MULTI_OE
UART
D11
POWER SUPPLY UNIT
X DRIVE ASSY
POWER SW ASSY
SW2
AC INLET
DIGITAL ASSY
D25
Flash Memory
SUB-FILD CONV.
&
XY DRV SEQUENCE
PATTERN GEN.
PEG383B-K
IC3301
LVDS
TRANSMITTER
PEG478A-K
IC3401
DC-DC
CONVERTER
BD8606FV
IC3801
VADR4
V+75V
V+10V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
VADR1
VADR2
VADR3
VDDLS1
VDDLS2
VDDLS3
VDDLS4
AN/P BN/P CN/ P DN/ P CLKN/ P
ADDRESS L ASSY
AD2
CN1601
IC1601
LVDS
RECEIVER
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
AD1
CN1602
VADR4
V+75V
V+10V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
VADR1
VADR2
VADR3
VDDLS1
VDDLS2
VDDLS3
VDDLS4
AN/P BN/P CN/ P DN/ P CLKN/ P
ADDRESS L ASSY
AD2
CN1601
IC1601
LVDS
RECEIVER
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
AD1
CN1602
VADR1VADR1 VADR2VADR2
VADR3VADR3 VADR4
V+75V
V+10V
V+10V
V+3.3V
V+75V
V+3.3V
CLK / LE / HBLK LBLK/R/G/B
CLK / LE / HBLK LBLK/R/G/B
VDDLS1VDDLS1 VDDLS2VDDLS2 VDDLS3VDDLS3 VDDLS4
RESONANCE
BLOCK
IC1801
LVDS
RECEIVER
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
RESONANCE
BLOCK
AN/P BN/P CN/P DN/P CLKN/P
AN/P BN/P CN/P DN/P CLKN/P
ADDRESS S ASSY
ADDRESS L ASSY
AD2
CN1801
AD2
CN1601
IC1601
LVDS
RECEIVER
AD1
CN1802
AD1
CN1602
F102
+B FOR RELAY DRIVE
RY102
D101
PFC Q103
Q104 Q106
D115
D112
D108
IC101
Switching
Switching
Switching
Switching
LIVE
NEUTRAL
+395V
P3
P10
V+3_3V_D V+10V
V+3_3V_D V+10V
V+3_3V_D V+10V
V+3_3V_D V+10V
PRIMARY
Q502
Q901
Q902
Q704
Q703
Q503
Drive Signal
X 1
PSUS
+17V
OFFSET BLOCK
VPOFS
VXKOFS1 VXKOFS2
VSUS
SUS
BLOCK
Gate Signal
Drive Signal
RESONANCE BLOCK
PSUS
+5V
OFFSET
Reg.
Drive Signal
SUS
PreDrive
VPU
+17V
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
SOFT-D
XPRST
VSUS
+17V
PSUS
LOGIC BLOCK
+17V
15V DC/DC CONV.
VPU
VPOFS
+17V
+5V
VSUS
+6.5V
X 2
REG
X 3
VADR
VADR
VADR
X 4
Gate Signal
Gate Signal
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
DRIVER IC
IC1851
DRIVER IC
IC1861
DRIVER IC
IC1871
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
DRIVER IC
IC1651
DRIVER IC
IC1661
DRIVER IC
IC1671
DRIVER IC
IC1681
6 7 8
A
B
C
5
6 7 8
PDP-LX5090
D
E
F
23
1
Analog Audio signal Analog Video signal
Digital Video signal Digital Audio signal
Component signal
Synchronized signal
IF signal
Control signal
Data signal
IO_AUDIO Assy
PC Assy
SIDE IO Assy
MAIN ASSY
JA7701
Input1 SCART
JA7702
Input2 SCART
JA7703
Input3 SCART
JA8601 Input5
CN8602
Head Phone
JA7804
SUB WOOFER
JA7804
Audio Out
JA7802
Audio Input for PC
SPDIF
IC8001
R2S11006FT
(AVSW)
A_TUNER_V
SLOW_SW1/2/3
Y/C
Y/C
SW OUT
HP_L/R OUT
IC8101
R2S11001FT
(RGBSW)
AUDIO_OUT_L/R
L/R IN
PC_L/R IN
IC8201
MSP5651M
(MSP)
IC8401
TAS5122DCA
(D-AMP)
IC4901 SII9125CTU (HDMI RX)
IC5001 CXB1444R (HDMI SW)
AIR-SIF
IC4801
AD9985KSTZ
(ADC)
RGB /YPbPr
IC4702
CM0048BF
(VDEC)
RGB
Main Y/C
Sub Y/C
COMP_Y
IC5701 TC90173FG (VBI Slicer)
U5301
AXF1192
(Tuner)
CVBS
IC4701
HY57V641620FTP
64Mbit(SDRAM)
FB
CLP
CLP
INPUT3
HDMI
CVBS
SCART1_OUT_V
CVBS
CVBS
JA7881
SPDIF
INPUT4
HDMI
INPUT1
HDMI
CLP,H
CVBS
L/R IN
L/R IN
L/R IN
RAPID_SW1/3
OPT_OUT
AIR OUT L/R
AIR OUT L/R
AIR OUT L/R
SCART2_OUT_V
SCART3_OUT_V
RAPID_SW1
RAPID_SW3
SLOW_SW2
SLOW_SW1
SLOW_SW3
JA7805
INPUT2 Component
Input2 Y/Cb/Cr
Input1 RGB
Input3 RGB
JA7803
Audio Input for
INPUT2 Component
L/R IN
JA8551
SPEAKER TERMINAL
IC5401
DRX3975D
(COFDM)
D_IF1 D_IF2
DT_MON_CVBS
EMMA_DA_GY
PC_RGB
PC_H/V
CN9601 PC Input
SPDIF
I2S
2 3 4

4.4 OVERALL BLOCK DIAGRAM (2/2)

A
B
C
D
E
F
24
1
2 3 4
PDP-LX5090
FAN CONNECT ASSY
SIDE KEY ASSY LED ASSY IR ASSY
RLS ASSY
IO_AUDIO ASSY
USB
IC6501
PD6568A
(ARIA)
DIN6 ( 12bit *3 )
DIN4_656DATA ( 8bit )
DIN3_656DATA ( 10bit )
DIN7 OSD 8bit *4
IC6811
AGC1072
(M30620FCSGP)
IF UCOM
IC6702 EDD1232ABBH 128Mbit (DDR)
IC6703 EDD1232ABBH 128Mbit (DDR)
IC6704 EDD1232ABBH 128Mbit (DDR)
IC6701
AGC1079
(S29GL016A90TFIR2)
16Mbit Flash
RDATA
IC7201
K4H510838D
(512Mbit DDR)
IC7204
K4H510838D
(512Mbit DDR)
IC7202
AGC1075
(S29GL064N90TFI04)
(64Mbit FLASH)
IC7205
AGC1076
(S29GL064N90TFI04)
(64Mbit FLASH)
IC5801
M66596FP
INT H/V, EXT H/V
EMMA_DA_GY / BCB / RCR
DIN1_656 ( 8bit )
DIN2 ( 8bit*3 )
RS232C
SR_OUT
IR
REM
SR_OUT TXD_SR
RXD_SR
TXD_232C RXD 232C
RLS
M15
CN4208
RLS
KEY1 KEY2
LED
M11
CN4209
KEY
M6
CN4107
RGB 10bit *3
RGB 10bit *3
FAN
M10
CN4201
M5
CN4202
FAN FANFAN
Fan Connect
FAN
RESERVED
IC7003 uPD61123F1 (EMMA SV)
To DIGITAL Ass'y
5
6 7 8
A
B
C
D
E
PDP-LX5090
5
6 7 8
F
25
1
POWER SUPPLY UNIT
RY102
LIVE
NEUTRAL
PRIMARY
SECONDARY
VADR
VSUS
T901
PFC Q103 Q104 Q106
PS_PD RELAY
EXT_PD
T702
T501
P3
P2
P1
P6
P5
+6.5V
VSUS_ADJ
Q704
Q703
Switching
Switching
P4
P10
+17V
+17V +6.5V
+17V
+12V
F102
+B for RELAY DRIVE
DRF_SW_B
M_SW_DET
PD_TRIG_B
DRF_B
Q902
Q901
Q503
Q502
Switching
Switching
+12V
STB5.1V
+17V
+6.5V
VADR
VSUS
D101
+395V
P9
Switching
+12V
+6.5V
+17V
D108
T101
P7
Switching
IC101
STB3.4V
D112
Q202
AC_DET
M_SW_DET
IC202
+6.5V
D115
AC_DET

4.5 POWER SUPPLY UNIT

A
2 3 4
B
C
D
E
F
26
1
2 3 4
PDP-LX5090
5
6 7 8
A
B
C
D
E
F
PDP-LX5090
5
6 7 8
27
1
Drive Signal
X 1
PSUS
+17V
OFFSET
BLOCK
VPOFS
VXKOFS1
VXKOFS2
VSUS
SUS
BLOCK
Gate Signal Gate Signal
Gate Signal
Drive Signal
RESONANCE
BLOCK
PSUS
+5V
OFFSET
Reg.
Drive Signal
SUS
PreDrive
VPU
+17V
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
SOFT- D
XPRST
VSUS
+17V
PSUS
LOGIC
BLOCK
+17V
15V
DC/DC CONV.
VPU
VPOFS
+17V
+5V
VSUS
+6.5V
X 2
REG
X 3
VADR
VADR
VADR
X 4
50F X DRIVE ASSY

4.6 50F X DRIVE ASSY

A
2 3 4
B
C
D
E
F
28
1
2 3 4
PDP-LX5090
5
50F Y DRIVE ASSY
50F SCAN A ASSY (HIGH-SIDE)
50F SCAN B ASSY (LOW-SIDE)
SCAN IC
IC2801
SCAN IC
IC2802
SCAN IC
IC2803
SCAN IC
IC2804
SCAN IC
IC2805
SCAN IC
IC2806
SCAN IC
IC2807
SCAN IC
IC2808
SCAN IC
IC2901
SCAN IC
IC2902
SCAN IC
IC2903
SCAN IC
IC2904
SCAN IC
IC2905
SCAN IC
IC2906
SCAN IC
IC2907
SCAN IC
IC2908
VH IC5V
VH IC5V
PSUS
PSUS
VH
IC5V
VH
IC5V
Y3
SA1
SB1
Y4
SCAN SIGNAL
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH
IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
VH IC5V
SCAN SIGNAL
VH
VH
IC5V
IC5V
Y 1
PSUS
PSUS
Scan Signal
IC5V
Y 5
+17V
IC5V/VF
DC/DC CONV.
IC5V
VC_P
+17V
15V DC/DC CONV.
VC_S
VC_U
+5V
Drive Signal
VSUS
VYPRST
VSNOFS
VKNOFS2
VKNOFS3
VKNOFS4
VKNOFS1
MAIN
DC/DC
CONV.
VH
Y 2
Photo Coupler
BLOCK
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
VSUS
SUS
BLOCK
SUS
PreDrive
+17V
VC_S
H-MSK
VC_S
L-MSK
+17V
KNOFS1 KNOFS3
BLOCK
VKNOFS1
VKNOFS3
RESONANCE BLOCK
VC_U
+17V
Drive Signal
VC_P
PRST
BLOCK
VYPRST
RST-D
BLOCK
+17V
+17V
KNOFS4 SOFT-G
BLOCK
VC_S
VKNOFS4
+17V
SNOFS KNOFS2 BLOCK
VSNOFS
VKNOFS2
VC_S
Drive Signal
SUSOUT
MSK-S
Gate Signal
Y 6
+17V
+5V
VSUS
+6.5V
REG
RESONANCE BLOCK
VC_U +17V
VADR
VADR
VADR
LOGIC
BLOCK
6 7 8

4.7 50F Y DRIVE, 50F SCAN A and B ASSYS

A
B
C
D
E
5
PDP-LX5090
6 7 8
F
29
1
50F X DRIVE ASSY
50F SCAN A, B ASSYS
5.0V
5.0V
Vadr Vadr
5.0V 6.5V 5.0V 6.5V
17V 17V
VSUS VSUS
VC_U VPU
VC_S
VPOFS
VC_P IC5V
VH
VKOFS1
VKOFS2
IC5V VH
5V
IC5V
DC/DC
Conv.
Scan
Logic
Scan IC
15V
DC/DC
Conv.
HMSK
FET
Pre
drive
Logic
5V
Re
g
.IC
DC/DC
Conv.
SUS-G
IGBT
Pre
drive
SUS-B
IGBT
Pre
drive
SUS-U
IGBT
Pre
drive
SUS-D
IGBT
Pre
drive
XPRST
FET
XSOFT-D
FET
XKOFS1
FET
Pre
drive
XKOFS2
FET
Pre
drive
XKOFS1
Reg.
XKOFS2
Reg.
Logic
SUS-G
IGBT
Pre
drive
SUS-B
IGBT
Pre
drive
SUS-U
IGBT
Pre
drive
SUS-D
IGBT
Pre
drive
LMSK
FET
Pre
drive
YPRST
FET
Pre
drive
SNOFS
FET
Pre
drive
YKOFS
1
FET
Pre
drive
YKOFS
2
FET
Pre
drive
YKOFS
3
FET
Pre
drive
YKOFS
4
FET
Pre
drive
RST-D
FET
Pre
drive
VYKOFS
12 Reg.
VYKOFS
3
Reg.
VYKOFS
4
Reg.
DC/DC
Conv.
VSNOFS
Reg.
VYPRST
Reg.
SOFT-G
FET
Pre
drive
from POWER SUPPLY UNT
from POWER SUPPLY UNT
to ADDRESS ASSY
to ADDRESS ASSY
Reg.IC
50F Y DRIVE ASSY
Note: VYPRST, VSNOFS, VYKOFS12, VYKOFS3, VYKOFS4 VXKOFS1 and VXKOFS2 voltages are electrical volume controls.
2 3 4

4.8 POWER SUPPLY BLOCK of 50F X, Y DRIVE and 50F SCAN A and B ASSYS

A
B
C
D
E
F
30
1
2 3 4
PDP-LX5090
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