Philips FPF37C128128UB-72 Service Manual Download Page 36

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Circuit Descriptions, Abbreviation List, and IC Data Sheets

EN 36

FHP PDP

Circuit Descriptions, Abbreviation List, and IC Data Sheets

Index of this chapter:

9.1 Board Function Description
9.2 List of Abbreviations

9.1

Board Function Description

9.1.1

Logic Board Function

Data Processor

•

(

adjustment (1 / 2.2 / 2.4 / 2.6 / 2.8).

•

NTSC/EBU format (Colour matrix) Switch.

•

RGB gain Control (White balance adjustment, amplitude
limitation).

•

Error diffusion technology (grey scale adjustment).

•

Dither (grey scale adjustment).

•

Burn-in pattern generation.

Data Converter

•

Quasi out-line adjustment (luminous pattern control).

Scan Controller

•

Address driver control signal generator (ADM).

•

Scan driver control signal generator (SDM).

•

X/Y sustain control signal generator.

Waveform ROM

•

Waveform pattern for drive / timing memory.

MPU

•

Synchronous detection.

•

System control.

•

Driving voltage (Va, Vs, Vr, Vw) minute adjustment.

•

Abnormal watch (breakdown detection) / abnormal
processing.

•

I_s (sustain) current control (sustain pulse control).

•

I_a (address) current control (sub-field control).

•

External communication control.

•

Flash memory (firmware).

EEPROM

•

Control parameter memory.

•

The accumulation energizing time (every hour).

•

Abnormal status memory (16 careers).

9.1.2

Function of X-SUS Board

DC/DC power supply block

•

Vs (+60V), Vw (+185V), Vx (+45V).

•

Vcc (+5V), XFvcc (+5V, floating), XFve (+18V, floating), Ve
(+17V), Vb(-5V).

X Switching Block

•

Switching during address period.

•

Switching during sustain period.

•

Switching during reset period.

Current Detector Block

•

I_sx (sustain) current detection.

9.1.3

Function of Y-SUS Board

DC/DC Power Supply Block

•

Vcc (+5V) -> Y Fvcc (+5V, floating)/Y Fve (+ 18V, floating)/
Ve (+ 17V)

Switching Block

•

Switching during address period.

•

Switching during sustain period.

•

Switching during reset period.

Current Detector Block

•

I_sy (sustain) current detection.

•

I_sp (SDM) current detection.

9.1.4

Function of PSU Board

Stand-by Power Supply Block

•

AC100-240: +5V & +3V3 Stand-by.

PFC Block (AD/DC Power Supply Block)

•

AC100-240: +390V.

AD/DC Power Supply Block

•

+380V, Vcc (+5V), Vs (+80V), Va (+60V).

Current Detection Block

•

l_a (address) current detection.

Abnormal Voltage Monitoring

•

Vs excess voltage monitoring.

•

Va excess voltage monitoring.

Summary of Contents for FPF37C128128UB-72

Page 1: ...Repair Manual FPF32C106128UA 51 52 62 32 H1 FPF32C106128UA 72 32 H2 FPF37C128128UA 72 37 H2 FPF37C128128UB 72 37 A1 FPF42C128128UB 54 42 H1 FPF42C128128UB 72 42 H2 FPF42C128128UC 52 42 A1 FPF42C128128UD 52 42 A2 FPF42C128128UE 52 42 A3 Contents Page 1 Technical Specifications 2 2 Safety Instructions Warnings and Notes 5 3 Directions for Use 7 4 Mechanical Instructions 7 5 Service Modes Error Codes...

Page 2: ... 0 265 mm H x 0 435 mm V 5 Display size 814 08 H x 454 44 mm V 6 Screen size Diagonal 37 7 Screen aspect 16 9 8 Dimensions 903 W x 498 H x 66 D mm 9 Weight About 13 5 kg 10 H sync V sync data 50 kHz H 50 60 Hz V LVDS No Item Spec FPF42C128128UB 54 1 Pixel Information not available 2 Number of Cells 3 Pixel Pitch 4 Cell Pitch 5 Display size 6 Screen size 7 Screen aspect 8 Dimensions 9 Weight 10 H s...

Page 3: ...024 V pixels 1 pixel 1 R G B cells 2 Number of Cells 3072 H x 1024 V 3 Pixel Pitch 0 90 mm H x 0 51 mm V 4 Cell Pitch 0 30 mm H x 0 51 mm V 5 Display size 921 60 H x 522 24 mm V 6 Screen size Diagonal 42 7 Screen aspect 16 9 8 Dimensions 994 W x 587 H x 66 D mm 9 Weight About 16 kg 10 H sync V sync data 50 kHz H 50 60 Hz V LVDS No Item Spec FPF42C128128UD 52 F_14582_002 eps 300905 FPF42C128128UC 5...

Page 4: ...EN 4 FHP PDP 1 1 3 Chassis overview Figure 1 4 PWB locations E_14580_001 eps 310304 ABUSL BOARD ABUSR BOARD ADM1 ADM2 ADM3 ADM4 ADM5 ADM6 ADM7 ADM8 XBB ADRESS MODULE ADM Y SUS BOARD LOGIC BOARD PSU BOARD X SUS BOARD SCAN MODULE ...

Page 5: ...of the E box Take into account that receiver LED on DST is positioned not in the middle but at the left side Point corresponding LEDs to each other In case the amount of Infrared produced by the screen pollutes the communication the set can be set in Stand by mode Then still the error messages can be retrieved 2 3 1 Notes on Safe Handling of the Plasma Display Notes to Follow During Service The wo...

Page 6: ...vicing is completed Verify that the peripherals of the serviced points have not undergone any deterioration during servicing Also verify that the screws parts and cables removed for servicing purposes have all been returned to their proper locations in accordance with the original setup ...

Page 7: ...turning off the main power it can result in electric shock or damage to the circuit due to residual electric charge Caution on handling the FPC connector To release the black lock lever of the connector flip it up gently in the middle with the nail of the thumb or forefinger from the side with the cable Never pinch the lock lever with fingers or tools Doing so might damage the lock lever Figure 4 ...

Page 8: ... 4 6 ABUS L board removal 1 Figure 4 7 ABUS L board removal 2 Remove the circuit board by following the steps below To install the circuit board reverse the removal procedure 1 Disconnect the connector CN52 from the ABUS L board 2 Release the lock of the FPC connectors CN53 CN54 CN55 and CN56 and remove the ADM flexible board 3 Release the lock of the FPC connector CN51 and disconnect the signal c...

Page 9: ... EH connector CN6 2 Release the lock of the FPC connectors CN2 CN3 CN4 CN5 and disconnect the signal cable 3 Slide the lock of the FPC connector CN7 toward the PSU board side then gently push it down toward the front and remove the PSU signal cable 4 Remove the screws M3 X 8 fixing the Logic board 5 Remove the Logic board 6 When installing the Logic board put the board in such a position that it i...

Page 10: ...To be able to repair the Plasma Display Panels on board level the following repair tools are available Special LVDS cable 9965 000 23434 Foam buffers 3122 785 90581 Figure 5 1 Extension cable kit ALiS PDP Figure 5 2 Foam buffers for FTV E_14580_023 eps 050404 Power Supply other signals SDA GND SCL 8 6 4 SDA GND SCL SCAVIO Customer s Interface Board Logic Board CN7 CN6 CN1 CN1 IIC IIC SCAVIO Compai...

Page 11: ...s not mentioned in 5 2 1 the workshop orders the necessary spare parts being boards at EuroService After receipt the workshop swaps the concerning board and makes the TV set complete by building in the PDP Afterwards the TV set is returned to the customer Figure 5 3 PDP flow chart End user contacts dealer because his plasma TV set is defect VIP workshop brings home visit to end user and swaps defe...

Page 12: ... 17441 Logic board FPF17R LGC5013 9965 000 17442 1 ABUS Right FPF17R ABR5005 9965 000 17436 ABUS Left FPF17R ABL5004 9965 000 17437 Signal Cable Logic ABUS SUS FPF17R CBL2001 9965 000 17438 Signal Cable XSUS YSUS FPF17R CBL1001 9965 000 17439 Display type Service code number Production code FPF32C106128UB 72 932219411682 Module description Factory code number Service code number X SUS board FPF17R...

Page 13: ...SUS board FPF23R XSS 0005 9965 000 26824 Y SUS board FPF23R YSS0010 9965 000 26825 Logic board FPF23R LGC0026 9965 000 26826 ABUS Right FPF23R ABR0002 9965 000 26823 ABUS Left FPF23R ABL0001 9965 000 26798 Signal Cable Logic ABUS SUS FPF23R CBL001203 9965 000 29940 Signal Cable XSUS YSUS FPF23R CBL001223 9965 000 29941 Signal Cable Logic ABUS SUS FPF23R CBL001234 9965 000 29943 Signal Cable XSUS Y...

Page 14: ...eck if there is no short circuit on the Boards Power Supply lines Step 3 Check current of 5V Vcc Power Supply line on ABUSL ABUSR Y SUS X SUS board PDP Repair procedure Board Swap Vertical Line Vertical Bar Horizontal bar Step 4 Check Va on ABUSL and ABUSR Board Step 5 Check Vs on Y SUS and X SUS board SDM Y SUS Step 6 Check Vs on Y SUS and X SUS board X SUS board XBB Logic Board Exchange procedur...

Page 15: ...via vacation switch Switch vacation switch off Check 3 3V Stby on pin 1 CN6 Logic board N Caution never disconnect connectors or remove boards when the mains plug is connected Allow discharge of power supplies before disconnecting connectors Switch vacation switch on and check 3 3V Stby on PSU 3 3V Stby on pin 1 Cn306 is ok Defect is on PSU board Standby supply repair See PSU repair method CC on L...

Page 16: ...s board is defective Replace X Sus board Remove SDM from the following connectors CN34 CN35 Y Sus Board CN33 Vcc pins 1 2 Vs pins 5 7 are shorted Y Sus board is defective Replace Y Sus Board SDM is defective PDP is defective 1 N N Y N Y Remove ADM from the following connectors CN53 CN54 CN55 CN56 Y ADM is defective PDP is defective ABUSL Board is defective PSU board has a short circuit Replace ABU...

Page 17: ...c board CN306 and CN307 are connected Connect set to mains Switch vacation switch on Switch set on via RC PSU Board Vcc 5V exists a few seconds Logic board is defective Replace Logic Board Follow Logic board replacement procedure N 3 N Check if VCEGO is High Disconnect the set from AC Mains Y In step 3 the 5V Vcc will be checked by use of an external PSU First adjust the current output on the exte...

Page 18: ...oard ABUSL board is defective Replace ABUSL Board X Sus board is defective Replace X Sus board Y Sus board is defective Replace Y Sus board Switch PSU off End of analysis Y Y Y Y N N N N 3 4 In the next steps the 5V Vcc power supply lines will be checked AExternal Power Supply is connected to D6224 D6225 5V Vcc on the set PS For testing each board ramp up the External PSU from 0 to 5V Monitor the ...

Page 19: ...connector CN52 ABUSL board Switch on N N ADM is defective Panel chassis is defective ABUSR board is defective Replace ABUSR board ABUSL board is defective Replace ABUSL board Y Y PSU board Va 50V exists Y Va and Vs Check with internal PSU For each step switch the set off and on via the vacation swith and the RC Switch off Switch on Switch on 5 N Disconnect the AC Power End of analysis VA check on ...

Page 20: ...shorted SDM is faulty Panel chassis is defective Switch on PSU board Vs Vcc is output Switch off Switch off End of analysis N Y 6 N N Y PSU Board Va block is defective Switch off End of analysis Y Vs Check on Y Sus X Sus board and SDM XBB SDM is faulty Panel chassis is defective Remark There is no start up of Vs switched and Va if power supply to X Sus CN23 or Y Sus CN33 board is disconnected E_14...

Page 21: ...ard X Sus board is defective replace X Sus Board XBB is faulty Panel chassis is defective X Sus board is defective End of analysis N Y 6 Vs Check on Y Sus X Sus board and SDM XBB There is a posibility to check the VS and Va power supply lines via an external power supply External power supply connected to VS or Va power supply line and ground output voltage 20V current 0mA or very low current to c...

Page 22: ...normal appearance Switch on Switch off One vertical line Signal cable is defective ADM is defective PDPs is defective End of analysis Tap lightly on ADM flexible heat melted junction Any changes Heat melted junction is defective PDP is defective Panel Adress has open circuit or ADM IC chip is defective PDP is defective End of analysis N N N 1 Y Y Y N Y Vertical Line Vertical bar Problem analysis p...

Page 23: ...ogic board is defective ABUSL board is defective PSU Cable is defective Connector has poor connection Logic board is defective 1 Y Y Y N Bar of 1 2 screen width on the right does not light Voltage exists at ABUSR board CN42 Switch off Disconnect CN42 from ABUSR board Switch on Voltage exists at PSU board Logic board is defective ABUSR board is defective PSU Cable is defective Connector has poor co...

Page 24: ...xists in left 1 2 area Switch off Replace ABUSL board Switch on Normal Switch off Replace Logic board Switch on Normal Normal Switch off Replace Logic ABUSL signal cable Switch on ABUSL board is defective LOGIC board is defective Signal cable is defective ADM is defective PDP is defective Switch off End of analysis Y Y N Y Y N Y N 3 4 N N 2 E_14580_018 eps 250304 ...

Page 25: ...d Switch on Normal Normal Normal Switch off Replace Logic board Switch on Switch on Replace signal Cables Logic ABUSR Switch on ABUSR board is defective Logic board is defective Signal cable is defective ADM is defective Panel chassis is defectiive 4 3 Panel is defective Panel chassis is defective N Y Y N N Y Switch off End of analysis E_14580_019 eps 250304 ...

Page 26: ...Switch off Replace X Sus board Switch on Switch off Replace X Sus board original board Replace Y Sus board Switch on Normal Normal N X Sus board is defective Y Sus board is defective PDP is defective SDM or XBB is defective Switch off End of analysis Y Y N Horizontal bar problem analysis procedure E_14580_020 eps 250304 ...

Page 27: ...on to save the information to a file This is optional but better safe than sorry Note If you close the window without saving all settings will be lost If you intend to close this window before replacing the board you should save the settings so you can load them later 10 Click the Off button 11 Switch off the set and replace the Logic Board with another one Logic Board Exchange 1 1 Copy NVM Data f...

Page 28: ...ld board are now written to the new board If successful the button Ship out will be enabled 6 Click button Ship out 7 Now a process of voltage feedback initialization and self adjustment starts This will take a few seconds When ready you can switch off the set disconnect ComPair and restart the set again to test 8 Exchange the service LVDS cable with the original LVDS cable E_14580_022 eps 250304 ...

Page 29: ...ive scan area Vertical line of different color Panel chassis Replace panel chassis 5 Bar width of 1 7 0f horizontal size or in multiples of 1 7 is displayed Abnormal display Panel chassis ABUSL ABUSR LOGIC Above boards are connected Refer to vertical Line bar 6 Bar width of 3 7 or 4 7 of the screen width is displayed Abnornial display Vertical line of different color Panel chassis ABUSL ABUSR LOGI...

Page 30: ...rm all white heat run After judgment replace panel chassis if needed 12 Stains Oval shaped points having abnormal luminance are scattered in the upper or lower part of screen Panel chassis Perform all white heat run After judgment replace panel chassis 13 Twinkle The entire screen momentarily becomes brighter or darker Poor connector contact Panel chassis 14 Flicker The entire screen flickers cont...

Page 31: ...skipped Luminance linearity is poor LOGIC 20 Abnormal sound PSU X SUS Y SUS Core is broken or transformer is abnormal Locate cause of abnormality from listening and viewing Replace the cause of problem 21 Control on external communication is abnormal Contrast color temperature adjustment and Y cannot be changed LOGIC Replace LOGIC board and folow Logic Board echange procedure Replace LOGIC board a...

Page 32: ... Only partial picture Unstabel picture Flickering flashing picture Lines across down image Inactive row s Inactive column s Missing colour s Other Pixel Defect s Dark dots Bright dots Qty of dots Mark Defect s Following defect symptoms are out of warranty R I A P E R L E N A P Symptoms Out of warranty Broken glass Scratch es on display Number of dark bright pixels within spec Burn in only for Plas...

Page 33: ... S D M SCAN CONTROLLER FRAME MEMORY DATA PROCESSOR OSC TIMING ROM γ comp OSC 80MH MPU OSC 10MHz Y SUS B X SUS B LOGIC B Y SUS EVEN SW X SUS EVEN SW CN31 Y SUS ODD SW Y SCAN ODD SW X SUS ODD SW X SCAN ODD SW RGB GAIN DITHER ERR SUB FIELD PRC POS RESET SW POS NEG RESET SW MEMORY CONTROLLER ADM1 ADM4 ADM8 ADM7 ADM6 ADM5 ADM3 ADM2 LVDS 24MHz SIGNAL INPUT Vrs Vra Vrw Vrx D A V SYNC cont APC cont I O EE...

Page 34: ...D SW POS NEG RESET SW DC DC CONVERTER Vxwgo Vcc 5V Vs 85V Va 63V Vw 190V Vu 55V POS NEG RESET SW Vcc 5V Vs 85V Va 63V Vcc 5V Vcc 5V Va 63V Va 63V CN32 CN22 CN42 CN52 CN36 CN26 ADM8 ADM7 ADM6 ADM5 ADM3 ADM2 ADM4 Vs 85V PFC Vs Va 5 3 3V Control PSU B 1 Vra Vcc MPU 380V PFCgo Vsago Vcego Vsago Vcego PFCgo 10A CN61 CPUgo PDPgo CN23 5V 63V AC100 240V DC DC CONVERTER XFVE Vxx VE 18V 20V 17V Vcc 5V DC DC...

Page 35: ... Board Item Adjustment items Measurement point Adjustment value conditions 1 Vs voltage adjustment PSU board F241 or CN392 test points Voltage setting label indication value 1 all black 2 Va voltage adjustment PSU board F240 or CN392 test points Voltage setting label indication value 1 all black 3 Vw voltage adjustment X SUS board connector CN26 6 pin Voltage setting label indication value 1 all b...

Page 36: ... sustain pulse control I_a address current control sub field control External communication control Flash memory firmware EEPROM Control parameter memory The accumulation energizing time every hour Abnormal status memory 16 careers 9 1 2 Function of X SUS Board DC DC power supply block Vs 60V Vw 185V Vx 45V Vcc 5V XFvcc 5V floating XFve 18V floating Ve 17V Vb 5V X Switching Block Switching during ...

Page 37: ...ing the PDP normally Parts Each PC board and parts mounted in the PC boards PDP Plasma display panel abbreviated Probe A cable with contact finger that can transfer the status of the electric circuit to be measured to an oscilloscope Protection cover A cover made of aluminium to protect the PDP entirely during test ROM Memory that stores the drive sequence and other data SDM Scan module SUS XSUS o...

Page 38: ... 69S FTV1 9DE AA 312278510170 42PF9952 12S FTV1 9DE AA 312278510170 42PF9952 19S FTV1 9DE AA 312278510170 42PF9952 32S FTV1 9DE AA 312278510170 42PF9952 39S FTV1 9DE AA 312278510170 42PF9952 58S FTV1 9DE AA 312278510170 37 A1 Information not available 42 H1 420P30 00 FM23 AA 312278513891 42FD9934 17S FM24 AA 312278513891 42FD9934 69S FM24 AA 312278513891 42FD9944 01S FM24 AA 312278513891 42FD9944 ...

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