Download  Print this page

LG 50PS60 Training Manual

Lg 50ps60 plasma display training manual
Hide thumbs

Advertisement

Training Manual
50PS60 Plasma Display
50PS60 Plasma Display
Advanced Single Scan Troubleshooting
July 2009

Advertisement

Table of Contents
loading

  Also See for LG 50PS60

  Related Manuals for LG 50PS60

  Summary of Contents for LG 50PS60

  • Page 1 Training Manual 50PS60 Plasma Display 50PS60 Plasma Display Advanced Single Scan Troubleshooting July 2009...
  • Page 2: Table Of Contents

    50PS60 TABLE OF CONTENTS TOPICS TOPICS PRELIMINARY ........2 DISASSEMBLY continued Outline ............2 Y-SUS board Removal ......... 28 Overview ............3 Top Y-Drive board Removal ......29 Safety Notice and Cautions ......4 Bottom Y-Drive board ........30 ESD Notice ..........5 Z-SUS board Removal .........
  • Page 3: Preliminary

    • Z SUS Output Board (Connects directly with FPC to Panel) • Control Board Receives its 5V from Power Supply, not Y-SUS • X Drive Boards (3) • Main Board • Power Button (Front Key Board) Turns off the SMPS via Key On line. Fall 2009 1080P Plasma 50PS60...
  • Page 4: Overview

    Layout of the Plasma Display Panel. At the end of this Section the Technician should be able to Identify the Circuit Boards and have the ability and knowledge necessary to safely remove and replace any Circuit Board or Assembly. Fall 2009 1080P Plasma 50PS60...
  • Page 5: Important Safety Notice

    When servicing this product, under no circumstances should the original design be modified or altered without permission from LG Electronics. Unauthorized modifications will not only void the warranty, but may lead to property damage or user injury. If wires, screws, clips, straps, nuts, or washers used to complete a ground path are removed for service, they must be returned to their original positions and properly fastened.
  • Page 6: Esd Notice

    Increase the separation between the equipment and the receiver; Connect the equipment to an outlet on a different circuit than that to which the receiver is connected; or consult the dealer or an experienced radio/TV technician for help. Fall 2009 1080P Plasma 50PS60...
  • Page 7: Contact Information

    New Training Materials on Alignment Handbook Plasma page Plasma page the Learning Academy site the Learning Academy site Published August 2009 by LG Technical Support and Training LG Electronics Alabama, Inc. 201 James Record Road, Huntsville, AL, 35813. Fall 2009 1080P Plasma 50PS60...
  • Page 8 1. Check the appearance of the Replacement Panel and Circuit Boards for both physical damage and part number accuracy. 2. Check the model label. Verify model names and board model matches. 3. Check details of defective condition and history. Example: Y Board Failure, Mal-discharge on screen, etc. Fall 2009 1080P Plasma 50PS60...
  • Page 9: Basic Troubleshooting Steps

    The final step is to correct the problem. Be careful of ESD and make sure to check the DC Supplies for proper levels. Make all necessary adjustments and lastly always perform a Safety AC Leakage Test before returning the product back to the Customer. Fall 2009 1080P Plasma 50PS60...
  • Page 10: Product Information

    Product Information This section of the manual will discuss the specifications of the 50PS60 Single layer design. The 1080p Full HD resolution and THX Display certification makes this series the must have HDTV in 2009. Fall 2009 1080P Plasma 50PS60...
  • Page 11 •LG Core Technologies: (Clear Voice II, Invisible Speaker, Picture Wizard, Intelligent Sensor) •Easy UI menu interface •Pure Black Level •Auto Navigation: (VCR, DVD, Bluray, HD DVD, SetTop Box, Satellite, Cable Box, Game, PC) •Input Labeling Fall 2009 1080P Plasma 50PS60...
  • Page 12 •EZ Menus (High Performance Interface) •Channel Add/Delete •Favorite Channel •Auto Clock •Manual Clock •On/Off Timer •Sleep Timer •SimpLink™ •Auto Off (When no video is present) •Image Sticking Minimization •100,000 Hour Panel Life (typical) •NTSC/ATSC Tuners with Clear QAM Fall 2009 1080P Plasma 50PS60...
  • Page 13 10.2Gbps) than that of HDMI 1.2, delivering a broader range of colors, and also drastically improves the data-transmission speed. Invisible Speaker Personally tuned by Mr. Mark Levinson for LG TAKE IT TO THE EDGE newly introduces ‘Invisible Speaker’ system, guaranteeing first class audio quality personally tuned by Mr. Mark Levinson, world renowned as an audio authority.
  • Page 14 Specifications Logo Familiarization (Picture Wizard) Specifications Logo Familiarization (Picture Wizard) Picture Wizard easily guides consumers through the calibration process using on-screen reference points. Customers can customize picture performance without the need for additional expense. Fall 2009 1080P Plasma 50PS60...
  • Page 15 60% less energy to perform these functions, while providing the same performance at the same price as less-efficient models. Less energy means you pay less on your energy bill. Draws less than 1 Watt in stand by. Fall 2009 1080P Plasma 50PS60...
  • Page 16: 600Hz Sub Field Driving

    No smeared images during fast motion scenes through 10 are actually in reverse. actually in reverse. Brighter image Brighter image should be last. should be last. Sub Field firing occurs using wall charge and polarity differences between Y-SUS and Z-SUS signals. Fall 2009 1080P Plasma 50PS60...
  • Page 17 Dazzling ‘visual and sound’ performance (certified by THX) • LG is one of the first consumer electronics companies to achieve THX Display Certification. An industry benchmark for video quality, THX Display Certification signifies that an HDTV delivers exceptional images, bringing more immersive movie, broadcast and video game experiences to your living room.
  • Page 18: Remote Control

    Remote Control Remote Control BOTTOM PORTION TOP PORTION Fall 2009 1080P Plasma 50PS60...
  • Page 19: Accessing Service Menu

    4) The Service Menu appears Note: It is possible, dependant upon the Software Version, a Password may be required to enter the Service Menu. If a password is required, enter 0000 Fall 2009 1080P Plasma 50PS60...
  • Page 20: Rear And Side Inputs

    Rear and Side Input Jacks Rear and Side Input Jacks Music/Pictures and Software Upgrades Fall 2009 1080P Plasma 50PS60...
  • Page 21 4) You can see the message “ ” TV Software Upgrade Shows the Shows the Currently Installed Software file Version found on the USB Shows the Flash Drive Software Version found on the USB Flash Drive Fall 2009 1080P Plasma 50PS60...
  • Page 22: Dimensions

    50PS60 Dimensions Power: There must be at least 4 inches of Clearance on all sides 3-1/8" 295W (Typical) 48-5/16" 78.7mm 0.13W (Stand-By) 1226.8mm 5-11/16" 145mm 15-3/4" 400mm 15-5/16" 405mm 32-1/2" 15-3/4" 15-3/4" 825.5mm 400mm 400mm Model No. Serial No. 30-3/8"...
  • Page 23: Disassembly

    DISASSEMBLY SECTION This section of the manual will discuss Disassembly, Layout and Circuit Board Identification, of the 50PS60 Advanced Single Scan Plasma Display Panel. Upon completion of this section the Technician will have a better understanding of the disassembly procedures, the layout of the printed circuit boards and be able to identify each board.
  • Page 24 Removing the Back Cover Removing the Back Cover To remove the back cover, remove the 29 screws Indicated by the arrows. (The Stand does not need to be removed). PAY CLOSE ATTENTION TO THE TYPE, SIZE AND LENGTH Of the screws when replacing the back cover. Improper type can damage the front.
  • Page 25: Circuit Board Layout

    Y SUS PWB Z-SUB Side Input (part of main) Y Drive Lower Control PWB AC In Main PWB Control Keys Heat Sink Center “X” Right “X” Left “X” Power Button Conductive Tape Under Main PWB Invisible Speakers Fall 2009 1080P Plasma 50PS60...
  • Page 26 SMPS (Switch Mode Power Supply) PWB Removal SMPS (Switch Mode Power Supply) PWB Removal Disconnect P811, P812, P813 and SC101 Then Remove the 8 Screws P812 P811 P813 SC101 Fall 2009 1080P Plasma 50PS60...
  • Page 27 Main PWB Removal Main PWB Removal P1006 P1003 P1001 P1005 Disconnect P1001, P1005 and P1006 Disconnect P1003 by lifting up the locking mechanism and removing the LVDS ribbon cable. Then Remove the 4 Screws Fall 2009 1080P Plasma 50PS60...
  • Page 28 Disconnect P1, P101, P102 and P104 by removing the tape and lifting upward on the locking tab pulling the cable out. Then Remove the 4 Screws P200 Look on back Look on back for heat transfer for heat transfer material material P101 P104 P102 Fall 2009 1080P Plasma 50PS60...
  • Page 29 Disconnect P101 and P309 by removing the tape and lifting upward on the locking tab P309 pulling the cable out. Then Remove the 10 Screws Carefully separate the Y-SUS from the Y-Drive Upper and Lower Boards. P101 Fall 2009 1080P Plasma 50PS60...
  • Page 30 Upper or Lower Y Drive Drive Carefully separate boards and resolder if boards and resolder if the Y-Drive from necessary. necessary. the Y-SUS Boards which is P114 connected via P114 and P103 P116. P116 P111 P104 P112 Fall 2009 1080P Plasma 50PS60...
  • Page 31 Upper or Lower Y or Upper or Lower Y Drive Drive Carefully separate boards and resolder if boards and resolder if the Y-Drive from necessary. necessary. the Y-SUS Boards which is connected via P214 and P203 P216. P204 Fall 2009 1080P Plasma 50PS60...
  • Page 32 P104 by pulling out (to the right) the locking tabs and removing the FPC from the connector. Then Remove the 8 Screws P101 Carefully separate the Z-SUS from the Z-SUB P103 and remove. P102 P100 Fall 2009 1080P Plasma 50PS60...
  • Page 33 Make sure to return it when reinstalling the lug. Make sure to return it when reinstalling the Oversized washer which board. This ground snaps into the Bottom Metal. board. This ground snaps into the Bottom Metal. locks the board in place. Fall 2009 1080P Plasma 50PS60...
  • Page 34 Disconnect all TCP ribbon cables from the defective X-Drive PWB. Remove the 5 screws holding the PWB in place. Remove the PWB. Reassemble in reverse order. Recheck Va / Vs / VScan / -VY / Z-Bias. Fall 2009 1080P Plasma 50PS60...
  • Page 35 Getting to the X Circuit Boards Warning: Never run the TV with the TCP Heat Sink removed Right Left Heat Sink Warning Shorting Hazard: Conductive Tape, Do not allow to touch energized circuits. Also under the Main board. Fall 2009 1080P Plasma 50PS60...
  • Page 36 At the end of this Section the technician should understand the operation of each circuit board and how to adjust the controls. The technician should be able with confidence to troubleshoot a circuit board failure, replace the defective circuit and perform all necessary adjustments. Fall 2009 1080P Plasma 50PS60...
  • Page 37 50PS60 SIGNAL and VOLTAGE DISTRIBUTION DIAGRAM Y Drive Display Panel Upper 5VFG indicates Grids Address SMPS OUTPUT VOLTAGES IN STBY SMPS OUTPUT VOLTAGES IN RUN FPCs measured from Reset STB5V, +5V, 17V, 12V to Main PWB STB +5V (also AC Voltage Det)
  • Page 38 (4) Adjusting Voltage DC, Va, Vs (12) Model Name (5) Adjusting Voltage (Set Up / -Vy / Vsc / Ve / Vzb) (13) Max. Watt (Full White) (6) Trade name of LG Electronics (14) Max. Volts (7) Manufactured date (Year & Month) (15) Max. Amps...
  • Page 39: Adjustment Order "Important

    1) When the Y-SUS PWB is replaced All label references are from a specific panel. 2) When a “Mal-Discharge” problem is encountered They are not the same for every panel encountered. 3) When an abnormal picture issues is encountered Fall 2009 1080P Plasma 50PS60...
  • Page 40 17V to the Main board when Vs on arrives • VS to the Y SUS and Z SUS boards when Vs on arrives • VS to the Y SUS and Z SUS boards when Vs on arrives Fall 2009 1080P Plasma 50PS60...
  • Page 41 5V VCC is pre-adjusted and fixed. All adjustments are made with relation to Chassis Ground. Use “Full White Raster” 100 IRE. Each panel has its own adjustment values for Va and Vs. Use the Panel’s Voltage Label for reference. RV901 Adjustments RV501 Fall 2009 1080P Plasma 50PS60...
  • Page 42 SMPS (Switch Mode Power Supply) PWB Layout Hot Ground Symbol P811 P812 Y-SUS Vs Adj VR901 Z-SUS Va Adj VR501 P813 F801 1~4 M5V 4A/250V Control 5~8 Gnd F302 IC701 1A/250V SC101 P814 Fuse F101-2 Main 15A/250V Fall 2009 1080P Plasma 50PS60...
  • Page 43 (opened), it pulls up and turns the Sub Micon IC701 on in the Auto mode. In this state, the Sub Micon turns on the power supply in stages automatically. A load is necessary to regulate the 17V with the SMPS disconnected. This is a good test if the Main board is suspect. Fall 2009 1080P Plasma 50PS60...
  • Page 44: Power Supply

    50PS60 POWER SUPPLY START UP SEQUENCE 50PS60 POWER SUPPLY START UP SEQUENCE In Stand-By Primary side is 163V Standby 5V will not In Run (Relay On) Primary side is 386V be output if the POWER SUPPLY Power Button is off.
  • Page 45 Connect DVM to pin 1 or 2 of P812. Adjust VR901 until the voltage matches your panel’s voltage label. 2) VA ADJUST: Connect DVM to pin 6 or 7 of P812. Adjust VR501 until the voltage matches your panel’s voltage label. Fall 2009 1080P Plasma 50PS60...
  • Page 46 50PS60 SMPS STATIC TEST UNDER LOAD Using two 100 Watt light bulbs, attach one end to Vs and the other end to ground. Apply AC to SC101. If the light bulbs turn on and VS is the correct voltage, allow the SMPS to run for several minutes to be sure it will operate under load. If this test is successful and all other voltages are generated, you can be fairly assured the power supply is OK.
  • Page 47 50PS60 Power Supply Troubleshooting Using two 100 Watt light bulbs, attach one end to Vs and the other end to ground. Apply AC to SC101. If the light bulbs turn on and VS is the correct voltage, allow the SMPS to run for several minutes to be sure it will operate under load.
  • Page 48 * Pin 24: When the Power Button is opened, • Pin 24 pulls up to 4.3V. • Stand-By turns off. AC-Det remains. Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 49 Open *65V Open Open 0.74V 0.86V 0.74V 0.86V * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 50 Open Open 0.74V 0.86V 0.74V 0.86V * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected, Unless specified. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 51 Diode Mode Label STBY Connected 0.75V 0.75V 0.75V 0.75V NOTE: The Black wire on P813 Connector is not pin 1. Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 52 • 2 DC: VSC (VSCAN) AND –Vy (DD-VAR) • 2 Waveform: Set-Up1 and Set-Dn1 Board Receives its main B+ from the: Board Receives its main B+ from the: • Switch Mode Power Supply sends VS • Switch Mode Power Supply sends M5V Fall 2009 1080P Plasma 50PS60...
  • Page 53 P313 Adj VR602 Logic Signals (in) P101 Set-Dn1 Y Drive To Control Adj VR601 Lower -Vy Adj VR902 P314 P307 FS901 (5V) -Vy TP Vsc Adj 4A/125V To Left X R305 VR901 Pins 1~4 Va Fall 2009 1080P Plasma 50PS60...
  • Page 54 50PS60 (50H3 Panel) 50PS60 (50H3 Panel) P312 Y-SUS PWB LAYOUT Y-SUS PWB LAYOUT FS302 P302 FS303 P311 FS301 P309 R306 VSC TP P313 VR602 SET-up1 VR601 P101 SET-dn1 P314 (-) (+) VR902 DD_Var (-Vy) FS901 R305 -VY TP VR901 VSCAN...
  • Page 55 Match your specific Panel’s Voltage label ±1V. 5) Adjust VSC using VR901. Measured across VSC TPs R306. Location Lower left Match your specific Panel’s Voltage label ±1V. VSC VR901 Location Bottom Center VSC TP R306 Location Lower Center Fall 2009 1080P Plasma 50PS60...
  • Page 56 • Located on the Control Board just to the right of the MCM Chip and above the EEPROM IC6. This TP may be used as an external trigger source for locking the waveform on the Oscilloscope Trigger Level Adjust External Trigger Source Fall 2009 1080P Plasma 50PS60...
  • Page 57: Bottom Y-Drive Board

    510V p/p NOTE: The Waveform Test Points are fragile. If by accident the land is torn and the run lifted, make sure there are no lines left to right in the screen picture. 78V RMS Fall 2009 1080P Plasma 50PS60...
  • Page 58 SET-UP or SET-DOWN FIG3 Area to Note: When actually performing the adjustments, 50uS be adjusted The portion of the waveform being adjusted can be Zoomed in on by increasing the speed of the scope. Set Down Fall 2009 1080P Plasma 50PS60...
  • Page 59 CCW will cause the peak to decrease in amplitude. Lower Center Of PWB Turn CW until the dome appears, then back off CCW. 4) SET-DOWN ADJUSTMENT VR601: Adjust VR601 while observing area (B) and set to 160uSec ± 5uSec. Fall 2009 1080P Plasma 50PS60...
  • Page 60 To correct, remove the LVDS from control All Waveforms taken at 50V per/div, 50uSec per/div PWB and make necessary adjustments. Ramp (Vset UP) too high Vset DN too high Ramp (Vset UP) too low Vset DN too low Fall 2009 1080P Plasma 50PS60...
  • Page 61: Y-Sustain

    Also controls Set Up/Down via adj. Generates Floating Ground FETs amplify Sustain 5V by on board SMPS Waveform Y Scan Signal to Y Drive Board To Y Drive Boards Logic signals needed to generate drive waveform Fall 2009 1080P Plasma 50PS60...
  • Page 62 Open Open 0.74V 1.14V 0.74V 1.14V * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected unless specified. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 63 *65V Open *65V Open *65V Open *65V Open * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 64 Y-SUS P101 to Control P1 Y-SUS P101 to Control P1 Pin 50 on Y-SUS is Pin 1 on Control Connector Layout Connector Layout Top 25 Pins Bottom 25 Pins P101 P101 Y-SUS PWB Control PWB Y-SUS PWB Control PWB 17.8V 0.7V 17.8V DELTA_VY_ON_OFF...
  • Page 65 1.44V DATA_ODD 1.44V DELTA_VY2 0.7V 1.44V DATA_EVEN 1.44V ER_UP 0.2V 1.44V 4.3V 1.44V ER_DN 0.1V 1.44V OC2_EVEN 2.8V 1.44V SUS_UP 0.1~0.4V 1.44V SUS_DN 1.44V OC1_EVEN 1.85V 1.44V Voltage and Diode Mode Measurement (No Stand-By Voltages) Fall 2009 1080P Plasma 50PS60...
  • Page 66 P313 P313 P311 P311 VSCAN VSCAN Floating Floating 5V FG 5V FG Ground Ground Floating Floating 5V FG 5V FG Ground Ground VSCAN VSCAN Diode Check means the Digital Volt Meter is in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 67 “Lower Y-Drive " P216 All Pins are Floating Ground 5VFG 1.3V 6~12 *FGnd FGnd FGnd * Note: (FGnd) Floating Ground Diode Mode Readings taken with all connectors Disconnected. Black lead on Floating Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 68: Y-Drive Upper And Lower

    SUS board). • Y Scan signal (over 500V peak/peak from the Y SUS board). • Logic signals from the Control board, routed through Y SUS. • Logic signals from the Control board, routed through Y SUS. Fall 2009 1080P Plasma 50PS60...
  • Page 69 SUS or Upper the Y SUS or Upper or Lower Y Drive or Lower Y Drive boards and resolder boards and resolder P116 P116 if necessary. if necessary. P204 P204 P104 P104 P112 P112 P111 P111 Fall 2009 1080P Plasma 50PS60...
  • Page 70 1 and 2. P112 P112 All control signals All control signals input from Y input from Y P111 P111 All control signals for All control signals for lower Y Drive board lower Y Drive board Fall 2009 1080P Plasma 50PS60...
  • Page 71 The board must screw hole. The board must be lifted up slightly to clear be lifted up slightly to clear these collars before it can be these collars before it can be Chocolate Chocolate removed. removed. Fall 2009 1080P Plasma 50PS60...
  • Page 72 When reinserting the FPC, make certain that FPC, make certain that both tabs are seated both tabs are seated correctly before correctly before attempting to lock attempting to lock No Gap (Tab seated) No Gap (Tab seated) Fall 2009 1080P Plasma 50PS60...
  • Page 73 Floating 5V FG Floating 5V FG Ground Ground Floating Floating 5V FG 5V FG Ground Ground VSCAN VSCAN Diode Check means the Digital Volt Meter is in Diode Mode, all connectors to PWB are removed. Fall 2009 1080P Plasma 50PS60...
  • Page 74 "Y-Drive" to “Y-SUS" P314 5VFG Open All Pins are Floating Ground 11~12 VScan 140V Open * Note: (FGnd) Floating Ground Diode Mode Readings taken with all connectors Disconnected. Black lead on Floating Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 75 Reading will vary Reading will vary P111 P111 All readings Open with All readings Open with Reading will vary Reading will vary Bottom of PWB Bottom of PWB All readings Open with All readings Open with Fall 2009 1080P Plasma 50PS60...
  • Page 76 : Open BL: 0.6V : Open 6) CLK-B BL: 0.84V BL: 0.84V 7) OC2-B-Odd BL: 0.87V BL: 0.87V Floating Ground Floating Ground 8) OC2-B-Even BL: 0.87V BL: 0.87V All readings Open with All readings Open with Fall 2009 1080P Plasma 50PS60...
  • Page 77 12 FPC connections 12 FPC connections Side Side Pins Pins 1080 Total Horizontal 1080 Total Horizontal Electrodes Electrodes establishing vertical establishing vertical Side Side pixel count pixel count 68 pins 68 pins 67 pins 67 pins Fall 2009 1080P Plasma 50PS60...
  • Page 78: Z-Sus Board

    M5V from the Switched Mode Power Supply • M5V from the Switched Mode Power Supply • 15V from the Control board but developed on the Y SUS board • 15V from the Control board but developed on the Y SUS board Fall 2009 1080P Plasma 50PS60...
  • Page 79 P312 Z Drive TP To SMPS IPMs FL103 FS100 (5V) Z Bias TP 4A/125V R457 Top Side to P102 Chassis Gnd To Panel Z-Bias Pins P100 Adj VR201 To Control 17.8V P103 P301 To Z-Sub Fall 2009 1080P Plasma 50PS60...
  • Page 80 4) Place DC Volt meter on VZB TP Z-Bias TP (Top of R457 to Chassis Gnd). Top of R457 to Chassis Gnd 5) Adjust VZB (Z Bias) VR201 to match your Z-Bias specific Panel’s voltage label. VR201 Lower Right Side Of PWB Fall 2009 1080P Plasma 50PS60...
  • Page 81 If the timing is out of sync, the Control board is at fault. Note: While making adjustments to the Ramp Up and/or Rame Down portion of the Y-Drive signal, the Control board makes the same adjustments to the Z-SUS waveform. Fall 2009 1080P Plasma 50PS60...
  • Page 82 If the Y-SUS is defective, but is still able to generate the 17V, then just jump M5V to the Y-SUS board, load the Vs with two light bulbs. No other jumpers are required to test SMPS, Control and Z-SUS boards. Fall 2009 1080P Plasma 50PS60...
  • Page 83 Open Open 0.74V Open 0.74V Open * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected unless specified. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 84 1.9V 17.8V 1.9V CTRL-OE Open ER-UP Open ER-DN Open Z Bias Open Open SUS-UP 0.4V Open SUS-DN 0.7V Open Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 85: Control Board

    Z SUS board. • Generates 3.3V and routes this voltage down to the two X Board • Generates 3.3V and routes this voltage down to the two X Board Fall 2009 1080P Plasma 50PS60...
  • Page 86 P104 To Left X To Right X Pins 1~4 Auto Gen Pins 1~4 3.3V Short 1~2 3.3V IC16 IC304 P102 3.3V To Center X Pins 1~4 FOR TCPs To each Pins 1~4 X Board 3.3V Fall 2009 1080P Plasma 50PS60...
  • Page 87 They have 4 pins. The top and bottom are the B+ route, the FL4 or FL5 two side solder points are Chassis Gnd. (5V EMI filters) P200 FL4 (5V) FL5 (5V) Fall 2009 1080P Plasma 50PS60...
  • Page 88 Control board. Confirm that LED D6 and LED D7 are illuminated or blinking, if they Control board. Confirm that LED D6 and LED D7 are illuminated or blinking, if they are, the board is most likely OK. are, the board is most likely OK. Fall 2009 1080P Plasma 50PS60...
  • Page 89 Control Board Crystal X2 Check Control Board Crystal X2 Check Use bottom left leg of Crystal 50Mhz 4V P/P Fall 2009 1080P Plasma 50PS60...
  • Page 90 TCP RGB per/Pixel 128 Lines per Buffer 5888 / 3 = 1962 256 Lines output Total 1920 actual (42 pin outputs not used) To X-Drive To X-Drive To X-Drive Center Board Right Board Left Board Fall 2009 1080P Plasma 50PS60...
  • Page 91 LVDS cable, press the two locking tabs inward, then rock the connector side to side while pulling out on the connector. Press Inward P6 Auto Gen: Jump pin 1 to 2, a series of patterns will be produced on screen. Fall 2009 1080P Plasma 50PS60...
  • Page 92 1.2V 1.3V 1.2V Open 1.3V 3.3V Open 1.3V 3.3V Open 1.3V 3.3V Open 1.1V 1.3V 0.58V Open Blue Pins indicate 24 bit (12 bit differential) video signal Note: There are no voltages in Stand-By mode. Fall 2009 1080P Plasma 50PS60...
  • Page 93 1.48V ER-DN 1.48V ER-UP 1.48V P2 Label P2 Label CTRL-OE 1.4V 17.8V 1.32V 17.8V 1.32V 17.8V 1.32V 17.8V 1.32V Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 94 P200 CONNECTOR "Control PWB “ to “Power Supply PWB” P813 Diode Mode Diode Mode Label Connected Disconnected 0.75V 0.92V 0.75V 0.92V 0.75V 0.92V 0.75V 0.92V Diode Mode Readings taken with all connectors Disconnected, (Unless Specified). Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 95 P101 Control PWB Y-SUS PWB Pin 1 on Control is Control P1 to Y-SUS Control P1 to Y-SUS 17.8V Pin 50 on Y-SUS 17.8V P101 Plug Information P101 Plug Information 17.8V 17.8V 17.8V 17.8V 2.84V OC2_ODD OC2_ODD 1.87V OC1_ODD OC1_ODD 0.3V DATA_ODD DATA_ODD...
  • Page 96 3.48V 1.44V CTRL_OE 1.44V 0.3V 1.44V PASS_TOP 1.4V 1.44V DATA_ODD 1.44V DELTA_VY2 0.7V 1.44V DATA_EVEN 1.44V ER_UP 0.2V 1.44V 4.3V 1.44V ER_DN 0.1V 1.44V OC2_EVEN 2.8V 1.44V SUS_UP 0.1~0.4V 1.44V SUS_DN 1.44V OC1_EVEN 1.85V 1.44V Fall 2009 1080P Plasma 50PS60...
  • Page 97 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.87V 1.2V 1.0V 0.97V 1.87V 1.2V 1.27V 0.97V 3.22V 1.2V 1.0V 0.97V 0.49V 1.1V 1.27V 0.97V 0.49V 1.1V Pins with no TP are Gnd. Fall 2009 1080P Plasma 50PS60...
  • Page 98 0.97V 1.27V 0.97V Note: 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V There are no voltages in 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V Stand-By mode. 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V Pins with no TP are Gnd. Fall 2009 1080P Plasma 50PS60...
  • Page 99 0.98V 1.87V 0.49V 1.0V 0.98V 1.87V 0.49V 3.3V TP 1.27V 0.98V 3.22V 3.22V Note: 1.0V 0.98V 0.49V 1.87V There are no voltages in Stand-By mode. 1.27V 0.98V 0.49V 1.87V Pins with no TP are Gnd. Fall 2009 1080P Plasma 50PS60...
  • Page 100 Control board develops 3.3V and routes to each X board via • Control board develops 3.3V and routes to each X board via ribbon connectors P110, P210 and P310. ribbon connectors P110, P210 and P310. Fall 2009 1080P Plasma 50PS60...
  • Page 101 There are a total of 23 TCPs and each TCP has 2 buffers. So ther are a total of 46 buffers feeding the panel ’ s 5760 vertical electrodes. are a total of 46 buffers feeding the panel ’ s 5760 vertical electrodes. Fall 2009 1080P Plasma 50PS60...
  • Page 102 The Vertical The Vertical Address buffers Address buffers (TCPs) have one (TCPs) have one heat sink across heat sink across all 23 TCPs as all 23 TCPs as indicated by the indicated by the arrow. arrow. Fall 2009 1080P Plasma 50PS60...
  • Page 103 On any Va (0.54V) TCPs connected. On any Va (Open) On any Va (0.84V) TCPs disconnected. On 3.3V (0.62V) On 3.3V (0.42V) On any VPP (Open) On any VPP (0.42V) Readings given with TCPs connected unless specified. Fall 2009 1080P Plasma 50PS60...
  • Page 104: X-Drive Boards

    (Address Bus). Note that each ribbon cable has a solid state device called a TCP attached. X Drive Board Y-SUS Board Logic Control Board Chocolate 128 lines 128 lines Taped Carrier Package 256 total lines 256 Vertical Electrodes Heat Sink Attached directly Back side of TCP Ribbon to Flexible cable Fall 2009 1080P Plasma 50PS60...
  • Page 105 On any Gnd Look for any TCPs 3.3V On the below: being discolored. Ribbon Damage. On any Va (0.58V) Cracks, folds On 3.3V (0.72V) Pinches, scratches, On any VPP (0.58V) etc… Reverse leads reads Open Fall 2009 1080P Plasma 50PS60...
  • Page 106 3.3V test point. The upside down L trace at pins 34 and 35 of each connector. Example here from P204. You can only check for continuity, you can not run the set with heat sink removed. Fall 2009 1080P Plasma 50PS60...
  • Page 107 Generate abnormal vertical bars c) Cause the entire area driven by the TCP to be “All White” d) Cause the entire area driven by the TCP to be “All Black” e) Cause a “Single Line” defect Fall 2009 1080P Plasma 50PS60...
  • Page 108 *65V Open *65V Open *65V Open *65V Open * Note: This voltage will vary in accordance with Panel Label Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 109 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 57~60 3.3V 0.67V Fall 2009 1080P Plasma 50PS60...
  • Page 110 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 57~60 3.3V 0.67V Fall 2009 1080P Plasma 50PS60...
  • Page 111 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 1.27V 0.97V 1.27V 0.97V 1.0V 0.97V 1.0V 0.97V 57~60 3.3V 0.67V Fall 2009 1080P Plasma 50PS60...
  • Page 112 On any Va (0.84V) TCPs disconnected. TCPs connected or disconnected Note: Va voltage will vary by panel, check your specific panel ’ s voltage label. Note: Va voltage will vary by panel, check your specific panel ’ s voltage label. Fall 2009 1080P Plasma 50PS60...
  • Page 113 +5V from the Switched Mode Power Supply • +5V from the Switched Mode Power Supply • 12V for Tuner (Stepped down to 5V) • 12V for Tuner (Stepped down to 5V) • 17V for Audio • 17V for Audio Fall 2009 1080P Plasma 50PS60...
  • Page 114 Tuner IC504 X501 HDMI 3 25 Mhz IC1001 P1005 Pin 19 Audio RGB/DVI LD501 Optical Audio Tuner RS232 RGB/PC Component inputs Audio IC805 In 3 Pin 1 HDMI inputs A/V Composite inputs Wired Remote S-In Fall 2009 1080P Plasma 50PS60...
  • Page 115 50PS60 MAIN PWB (Front Side) COMPONENT LAYOUT 50PS60 MAIN PWB (Front Side) COMPONENT LAYOUT Components that are Grayed out are on the back. IC804 USB IC804 1) 5.1V 4) 0V P1006 2) Gnd 5) 0V P1001 IC302 IC203 3) 3.2V 6) 5.1V...
  • Page 116 Main PWB Back Side (Regulator Checks) Main PWB Back Side (Regulator Checks) IC304 IC301 IC305 IC202 D951 Q303 IC201 D801 D1001 Q302 Q951 Q1001 Q501 IC502 Q502 IC601 Q504 D802 IC803 Q503 D892 D628 Q602 D627 D890 IC505 IC602 IC802 Fall 2009 1080P Plasma 50PS60...
  • Page 117 50PS60 MAIN PWB COMPONENT LAYOUT Q303 Components that are Grayed out are on the back. IC304 IC301 IC804 USB IC804 1) 5.1V 4) 0V P1006 2) Gnd 5) 0V P1001 IC302 IC203 3) 3.2V 6) 5.1V P1003 LVDS Q301 IC952...
  • Page 118 50PS60 MAIN (BACK SIDE) SIMICONDUCTORS IC201 NVRAM IC304 1.8VMST IC505 5V (Tuner) IC602 RS232 RAM Q1001 Pow Down Q502 Video Buffer Q890/2 HDMI1/2 IC1001 Pin Hot Swap [1] Gnd [1] 0.6V [1] 3.8V [1] Gnd [B] 0V [B] 0.6V [B] 0V [2] Gnd [2] 1.8V...
  • Page 119 SIF Pin 16 Audio Test Point DIG IF (-) Pin 13 DIG IF (+) Pin 12 Digital Channel Test Point Data Pin 9 Clock Pin 8 MAIN PWB Tuner B+ (5V) 1 n/c Tuner Location Fall 2009 1080P Plasma 50PS60...
  • Page 120 Pin 16 “SIF” Signal 450mVp/p Pin 1 700mVp/p Note: 8VSB or QAM Only 200mV / 2uSec “Dig IF” Signal only when receiving a Digital Channel. Pin 12 and Pin 13 “Dig IF” Signal 100mV / 1uSec Fall 2009 1080P Plasma 50PS60...
  • Page 121 Main PWB Crystal X1 and X501 Check X1 (1.5V DC) / (2.4V p/p) 12Mhz X1 Runs all the time X501 (1.5V DC) / (110mV p/p) X501 Runs only when set is on 25Mhz X501 MAIN PWB Crystal Location Fall 2009 1080P Plasma 50PS60...
  • Page 122 (2) Pull the Cable from the Connector (2) Pull the Cable from the Connector Fall 2009 1080P Plasma 50PS60...
  • Page 123 Main PWB P1003 LVDS Video Signal Test Points Main PWB P1003 LVDS Video Signal Test Points LVDS Waveform TPs P1003 Location P1003 Location MAIN PWB Fall 2009 1080P Plasma 50PS60...
  • Page 124 SMTP Color Bar Signal Input Pins 11, 12, 16 and 17 Pins 11, 12, 16 and 17 Waveform TP see 1 page back Pin 12 (R1024) Pin 11 (R1023) Pin 17 (R1020) Pin 16 (R1019) Fall 2009 1080P Plasma 50PS60...
  • Page 125 Pins 21, 22, 27 and 28 Pins 21, 22, 27 and 28 SMTP Color Bar Signal Input Waveform TP see 2 pages back. Pin 22 (R1016) Pin 21 (R1015) Pin 28 (R1012) Pin 27 (R1011) Fall 2009 1080P Plasma 50PS60...
  • Page 126 1.18V 0.9V RE1- 1.26V 0.9V DISP-EN 2.8V 0.5V RE1+ 1.24V 0.7V 3.28V Open RA2- 1.0V 0.9V ROM-TX1 3.28V Open ROM-RX1 0.5V Open RA2+ 1.45V 0.9V RB2- 1.2V 0.8V Diode Mode Check with the PWB Disconnected. Fall 2009 1080P Plasma 50PS60...
  • Page 127 *Green LEDs turn LED W 1.7V on when TV first turned on. Next LED Cent 1.5V they get brighter, Not Used then they go off. Diode Mode Readings taken with all connectors Disconnected. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 128 Turned on by Vs On Command. off after 10 seconds. * Pin 24: When the Power Button is opened, • Pin 24 pulls up to 4.3V. * Pin 17: 5V Det not used. • Stand-By turns off. AC-Det remains. Fall 2009 1080P Plasma 50PS60...
  • Page 129 8.65V Open 8.65V Open 8.65V Open 8.65V Open Right (-) Board P1005 Right (+) Location Speaker Left (-) Connector Left (+) MAIN PWB Diode Mode Check with the PWB Disconnected. DVM in the Diode mode. Fall 2009 1080P Plasma 50PS60...
  • Page 130: Main (Digital) Board

    3.3V generated on the Main PWB. • The Front Power LEDs are driven by 2 separate pins from the • The Front Power LEDs are driven by 2 separate pins from the Main board. Main board. Fall 2009 1080P Plasma 50PS60...
  • Page 131 Front Control (IR and Intelligent Sensor) PWB and Power LED PWB Location Front Control (IR and Intelligent Sensor) PWB and Power LED PWB Location Power LED PWB Front IR PWB Lower Left Side (As viewed from rear). Lower Left Side (As viewed from rear). Fall 2009 1080P Plasma 50PS60...
  • Page 132 Front Power LED and IR Board Layout Front Power LED and IR Board Layout Power LED PWB Ground snap Power LEDs Sensor Intelligent Sensor Front IR PWB Fall 2009 1080P Plasma 50PS60...
  • Page 133 Then they get brighter, then they go off. Power LED PWB back P1 To Main Front IR PWB PWB P1001 J2 To Side Key P1 J1 To Power LED P2 Fall 2009 1080P Plasma 50PS60...
  • Page 134 Front IR and Intelligent Sensor Board Layout Front IR and Intelligent Sensor Board Layout Intelligent Sensor Infrared Sensor Fall 2009 1080P Plasma 50PS60...
  • Page 135 TV first turned on. Next LED Cent 1.5V they get brighter, Not Used then they go off. Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 136 J2 CONNECTOR “Ft IR PWB" to "Ft Key“ *STBY1 *STBY2 Diode Mode 3.3V 3.3V Open 3.3V 3.3V Open 4.38V Open *STBY2 Power Button “IN” Diode Mode Readings taken with all connectors Disconnected. Black lead on Gnd. DVM in Diode Mode. Fall 2009 1080P Plasma 50PS60...
  • Page 137: Side Key

    Side Key Assembly Side Key Assembly To Ft IR PWB Fall 2009 1080P Plasma 50PS60...
  • Page 138 P1 Connector “Side Key" to “IR/LED Control PWB“ J2 (No Key Pressed) STBY 1 *STBY1 *STBY2 Diode Mode Power KEY 1 3.3V 3.3V Open Button Out KEY 2 3.3V 3.3V Open STBY 2 PWR SW 4.38V Open Power Button Out Open Fall 2009 1080P Plasma 50PS60...
  • Page 139 The 11 X 17 foldout is best viewed in the Adobe version in which The 11 X 17 foldout is best viewed in the Adobe version in which page can be zoomed in and out for easier reading. page can be zoomed in and out for easier reading. Fall 2009 1080P Plasma 50PS60...
  • Page 140 50PS60 TV INTERCONNECT DIAGRAM P302 Y-SUS LOCATION Generic Part Diode Check Diode Check D51, 52, 61, 62, 71, 72 Open MA3DF30 Open NOTE: Diode tests are conducted with the PWB disconnected. Q51, 52, 61, 62, 71, 72, 73, 81, 82, 83...
  • Page 141 NOTE: LVDS P1003 Information WAVEFORMS: 50PS60 LVDS P1003 WAVEFORMS There are actually 20 pins carrying Video plus 4 pins carrying clock signals to the Waveforms taken using SMTP Color Bar input. All readings give their Time Base related to scope settings.
  • Page 142 50PS60 MAIN (BACK SIDE) SIMICONDUCTORS IC201 IC304 IC505 IC602 Q1001 Q502 Q890/2 NVRAM 1.8VMST 5V (Tuner) RS232 RAM Pow Down Video Buffer HDMI1/2 IC1001 Pin Hot Swap [1] Gnd [1] 0.6V [1] 3.8V [1] Gnd [B] 0V [B] 0.6V [B] 0V [2] Gnd [2] 1.8V...