Sharp LCD LED TV philips plasma LCD TVCase history vol 1 by DAMON MORROW

1 TV Model Number: LC-50LE442U Smart LED-TV2 TV Failure Symptom: TV shuts down into stand-by mode when programming channels 3 Faulty Board: Main Board 4 Faulty Board Number: 9JY0150CTN06

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DAMON MORROW Sharp LCD/LED TV Philips Plasma/LCD TV

Case History Vol.1

Memory Problems, Power Problems & Display Problems

http://www.PlasmaTVRepairGuide.com

Sharp LCD/LED TV Philips Plasma/LCD TV

Case History Vol.1

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You cannot give this E-book away for free.

You do not have the rights to redistribute this E-book.

Warning! This is a copyrighted material; no part of this guide may be

reproduced or transmitted in any form whatsoever, electronic, or mechanical, including photocopying, printing, recording, or transmitting by any

informational storage or retrieval system without expressed written, dated and signed permission from the author You cannot alter, change, or

repackage this document in any manner.

Damon reserves the right to use the full force of the law in the protection of his intellectual property including the contents, ideas, and expressions

contained herein Be aware that eBay actively cooperates in closing the account of copyright violators and assisting in the legal pursuit of violations.

DISCLAIMER AND/OR LEGAL NOTICES

The reader is expressly warned to consider and adopt all safety precaution that might be indicated by the activities herein and to avoid all potential hazards This E-book is for informational purposes only and the author do not accept any responsibilities or liabilities resulting from the use of this information While every attempt has been made to verify the information provided here, the author cannot assume any responsibility for any loss, injury, errors, inaccuracies, omissions or inconvenience sustained by anyone resulting from this information Most of the tips and secrets given should only be carried out by suitably qualified electronics engineers/technicians Please be careful as all electrical equipment is potentially dangerous when dismantled Any perceived slights of policy, specific people or organizations are unintentional

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Limit of Liability / Disclaimer of Warranty:

The authors and publisher of this book and the accompanying materials have used their best efforts in preparing this program The authors and publisher make no representation or warranties with respect to the accuracy,

applicability, fitness, or completeness of the contents of this program They disclaim any warranties (expressed or implied), merchantability, or fitness for any particular purpose The reader is expressly warned to consider and adapt all safety precautions that might be indicated by the activities here in and to avoid all potential hazards By following the instructions contained herein, the reader willingly assumes all risks in connection with such

instructions The authors and publisher shall in no event be held liable for any loss or other damages, including but not limited to special, incidental, consequential, or other damages As always, the advice of a competent legal, tax, accounting or other professional should be sought.

This manual contains material protected under International and Federal Copyright Laws and Treaties No parts of this manual shall be reproduced or transmitted by any means, electronic, mechanical, photocopying, printing and recording or otherwise Any unauthorized use of this material is

prohibited All product illustration, product names and logo are trademark of their respective manufacturers

me to stay fit and healthy and to go further and to never give up Thank you

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2 Sharp LCD/LED and Philips Plasma/LCD TV Service Case

History Layout Example

7

5 The Actual Sharp LCD/LED and Philips Plasma/LCD TV

Case History Volume 1 Begins Now

14

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DAMON MORROW

Sharp LCD/LED TV Philips Plasma/LCD TV Case History Vol.1

Sharp & Philips TV: Memory Problems, Power Problems, Display Problems

Documented Service Records - All Level Technicians

For Intermediates, Professional Technicians And Advanced Students

Documented Service Records – All Level Technicians.

Power Faults - Display Faults - Memory Errors

The following information in this Sharp & Philips case history e-book was

written and compiled according to Damon Morrow's in-house service records (or case history) of Sharp & Philips TV failures This e-book documents a fair range of Sharp & Philips TV faults including various memory errors, display symptoms, and power failures This case history e- book is very easy to use, and it simply lists a fair range of popular problems and secretive fixes for Sharp & Philips TV's The information contained in

these pages are complete with the model number of the Sharp & Philips

TV, the board-number of the faulty circuit, and the part-location number of the defective component(s).

This e-book is a simple and affective reference tool, revealing components which have failed causing performance issues with Sharp & Philips TV's This e-book documents known symptoms on Sharp & Philips TV's such as Stand-by power only, dead-no power, no start-up cycle, error image on- screen, lines on screen, no audio, and much more

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The components and IC's which have failed are listed in this e-book, and they are mainly standard components and IC chips Standard component failure include diodes, resistors, MOSFET's, IGBT’s, NPN's, and capacitors

IC chip failure include memory IC's, control IC’s, buffer IC’s, IPM Module, FET chips, buck regulators, LDO’s, level shifters, etc The test equipment used while compiling this Sharp & Philips case history information was a standard DVM meter (Fluke), Capacitor meter (uF/ESR) and a 60Mhz

digital Oscilloscope (the very basics all technicians use) The scope was primarily used to troubleshoot IC chips and their I/O signaling, especially on Philips plasma sustain boards The scope was also used to test feedback- loops, start-pulses, and duty-cycles on Sharp LCD/LED boards, as well as serial-clocks, gate-circuits, and bucking control However, in this e-book all

of the troubleshooting has been done for you, with the causes and bad parts listed.

This Sharp & Philips e-book is for technicians of all levels, there are no complex diagrams or detailed graphics involved This e-book is not a case history of troubleshooting and circuit evaluation (as with my Plasma Display Faults & LCD Secrets books) This e-book is a simple case history of Sharp

& Philips TV parts failure Again, all of the troubleshooting work has been done for you and compiled in a simple and easy to follow format This e- book is written text information correlating to shop records There are no pictorial graphics or illustrative diagrams used in this e-book as it is not

required i.e 'case-history'.

Note: Below is an example of how the Service-Case-History Records of each Sharp & Philips TV model are laid out in this e-book, and also shows the meaning of each category.

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Sharp & Philips TV Service Case History Layout Example

1) TV Model Number: Model number of TV issued by TV manufacturer

(Example LC-52D85U).

2) TV Failure Symptom: The kind of problem the TV is having

(Example Full start-up no picture, backlights only, protect mode).

3) Faulty Board: Which board inside the TV has the failure

(Example T-Con Board).

4) Faulty Board Number: Manufactures Part Number of faulty board

6) Part(s) Failure Type: The way in which the part(s) have failed

(Example 8-pin FET IC Q6286 no source voltage output (dead)).

7) Shop Notes: (If available) shop notes relating to the repair

(Example 8-pin FET IC Q6280 replaced as a service precaution).

(n.a Means shop notes are not available.

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Quick Tips On Sharp & Philips Components

Quick Emphasis on Component Faults & Error's

The five figures below point out the main components that are known to fail

on main boards, T-Con boards, SMPS boards, and X/Y sustain boards from Sharp & Philips TV’s FIG 1-2-3 illustrates the bucking IC’s and LDO’s that causes multiple shut down issues on T-Con’s (logic board) and main boards FIG 4 reveals SMPS parts failures as well.

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FIG1-2-3 Buck converters, Step Down Switchers, and LDO’s that fail on Con board’s will cause the TV to fully power-up with a brief raster then

T-only the backlights are on, and then the TV shuts down into protect mode (indicating a fault error) and faulty SMD FET’s cause the same symptom The same three components in FIG 1-2-3 that fail on T-Cons also fail on

main boards (including faulty SMD FET’s) and will cause the TV to fully

power-up with welcome-screen, then approximately after 20 seconds the TV shuts down into brief stand-by mode, the protect mode (indicating a fault error) The fault symptom of the TV is governed by the design topology of the main board and T-Con board

FIG 4 points out the component parts that fail on SMPS boards, faulty box capacitors, opto-couplers and electrolytic caps will cause the TV to attempt power-up then switch into protect mode, a shorted diode on the cold side of the SMPS will cause the same fault symptom Resistors, mode control IC’s and power-resistors that fail (hot-side SMPS) will cause the TV to switch from stand-by mode into immediate protect mode (indicating a crucial

component has a fault) MOSFET’s, IGBT’s, and power rectifiers that

become shorted will blow the primary fuse on the SMPS and cause the TV

to be completely unresponsive with no stand-by power (dead)

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FIG 5A illustrates the known components that cause X/Y sustain error’s on Philips plasma TV’s TO-220 and TO-252 FETs that develop a short will usually blow the ceramic fuse on either X/Y board, causing shut down or black screen Electrolytic caps that have high ESR will cause the X/Y board

to shut down sometimes resulting in sound with no picture (y-board) IPM modules that develop an internal short will usually open a Pico fuse or ceramic fuse on X/Y boards causing board shut down IPMs that develop a problem with SUS/UP-SUS/DOWN will cause the TV to have sound with

no picture.

This concludes Quick Tips

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TV Model List

Sharp LCD/LED: 44 models

50LB150U 50LB370U 50LE440U 50LE442U

50LE650U 50UB30U 52C6400U 52D43U 52D64U 52D65U LC-52D82U LC-52D85UN LC-52D92U LC-52E77U LC-

52E77UN 52LE700UN 52LE810UN 52LE830U

52LE920UN 52SB57UN 52SE94U 60C46U 60C52U 60C6600U LC-60C8470U LC-60E69U LC-60E79U LC-60LE550U LC- 60LE6300U LC-60LE660U LC-60LE750U LC-60LE810UN LC-

LC-60LE830U LC-60LE831U LC-60LE835U LC-60LE845U LC-60LE857U LC-60LE920UN LC-70C7450U LC-70LE550U LC-70LE640U LC-

70LE734U LC-70LE755U LC-70LE857U

Philips Plasma: 10 models

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“Once again here's the case history layout

example”

1) TV Model Number: Model number of TV issued by TV manufacturer

(Example LC-52D85U).

2) TV Failure Symptom: The kind of problem the TV is having

(Example Full start-up no picture, backlights only, protect mode).

3) Faulty Board: Which board inside the TV has the failure

(Example T-Con Board).

4) Faulty Board Number: Manufactures Part Number of faulty board

6) Part(s) Failure Type: The way in which the part(s) have failed

(Example 8-pin FET IC Q6286 no source voltage output (dead)).

7) Shop Notes: (If available) shop notes relating to the repair

(Example 8-pin FET IC Q6280 replaced as a service precaution).

(n.a Means shop notes are not available.

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The actual Sharp & Philips TV case history begins

now.

-Power Problems, Display Problems, Memory

Sharp LCD/LED TV

Case history

1) TV Model Number: LC-50UB30U (4K LED-TV)

2) TV Failure Symptom: Full start-up, backlights only, smart code, then protect mode

3) Faulty Board: T-Con Board

4) Faulty Board Number: 0981-0250-7706

5) Board Location Number Of Faulty Part(s): F101, D116

6) Parts Failure Type: SMD fuse open, diode D116 shorted

7) Shop Notes: This TV also had a V-SYNC problem on main board Reload firmware if available

===============================================================

1) TV Model Number: LC-50LB150U (Smart LED-TV)

2) TV Failure Symptom: Full smart start-up, raster only, no image or menu, then protect mode

3) Faulty Board: Main Board

4) Faulty Board Number: TXDCB01K0590001

5) Board Location Number Of Faulty Part(s): Q704

6) Parts Failure Type: 8-pin FET IC Q704 no source voltage output

7) Shop Notes: Electrolytic capacitor C719 high ESR value and replaced

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1) TV Model Number: LC-50LE442U (Smart LED-TV)

2) TV Failure Symptom: TV shuts down into stand-by mode when programming channels

4) Faulty Board Number: 9JY0150CTN06100

5) Board Location Number Of Faulty Part(s): U3102

6) Parts Failure Type: Flash/EEPROM U3102 dead at SDA output

7) Shop Notes: Flash/EEPROM doesn’t need programming Update firmware if available

=========================================================

1) TV Model Number: LC-50LB370 (LED-TV)

2) TV Failure Symptom: Dead, no stand-by power

3) Faulty Board: SMPS/LED Drive

4) Faulty Board Number: PLTVEY701XAL5

5) Board Location Number Of Faulty Part(s): F9901, F9902, Q8100, Q9100,

6) Parts Failure Type: Box fuses F9901/02 open, FET’s Q8100/9100 shorted

7) Shop Notes: R9111 out of Ohm value and replaced

=========================================================

2) TV Failure Symptom: Power-up, backlights flash once, and then shut down into protect mode

3) Faulty Board: LED Drive Board

4) Faulty Board Number: C500S01E01A

5) Board Location Number Of Faulty Part(s): Q37, R215

6) Parts Failure Type: SMD FET Q37 shorted, resistor R215 out of Ohm value

7) Shop Notes: After repair update firmware if available

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1) TV Model Number: LC-50LE440U (LED-TV)

2) TV Failure Symptom: Must un-plug TV to turn off, TV can be turned on again after 1 hour

4) Faulty Board Number: 9JY0139CTJ01100

6) Parts Failure Type: Flash/EEPROM serial clock error (SCL)

7) Shop Notes: Flash/EEPROM doesn’t need programming Update firmware if

available

==============================================================

1) TV Model Number: LC-52SE94U (LCD-TV)

2) TV Failure Symptom: Partial start-up, backlight flash, then protect mode

3) Faulty Board: Inverter Board

4) Faulty Board Number: RUNTKA394WJZZ

5) Board Location Number Of Faulty Part(s): Q7506D

6) Parts Failure Type: FET Q7506D shorted

7) Shop Notes: Q7505D replaced as a service precaution

=============================================================

1) TV Model Number: LC-52LE700UN (LED-TV)

2) TV Failure Symptom: Star-up attempt, then protect mode

3) Faulty Board: SMPS

4) Faulty Board Number: RUNTKA604WJQZ

5) Board Location Number Of Faulty Part(s): PC7104

6) Parts Failure Type: Opto-Coupler PC7104 shorted on diode side

7) Shop Notes: n.a

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2) TV Failure Symptom: Full start-up, no menu, raster only, then backlights only, then protect mode

4) Faulty Board Number: RUNTK4910TPZQ

5) Board Location Number Of Faulty Part(s): IC6201

6) Parts Failure Type: Sync-PWM buck control IC no step down voltage output (dead)

7) Shop Notes: After repair update firmware if available

===============================================================

1) TV Model Number: LC-52SB57UN (LCD-TV)

2) TV Failure Symptom: Partial start-up, then shut down into protect mode

4) Faulty Board Number: RDENCA235WJQZ

5) Board Location Number Of Faulty Part(s): D7125

6) Parts Failure Type: Diode D7125 shorted

7) Shop Notes: Regulator chip IC7121 intermittent feedback problems and replaced

===============================================================1) TV Model Number: LC-52E77UN (LCD-TV)

2) TV Failure Symptom: Stand-by only, no full start-up

6) Parts Failure Type: DC-DC regulator chip IC7121 no DC voltage from output pin

7) Shop Notes: SMD resistor R7124 out of Ohm value and replaced

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1) TV Model Number: LC-52D43U (LCD-TV)

2) TV Failure Symptom: Power-on, brief backlight flash, then protect mode

4) Faulty Board Number: RUNTKA260WJZZ

5) Board Location Number Of Faulty Part(s): T7505B

6) Parts Failure Type: Step-down transformer T7505B open on primary side

7) Shop Notes: n.a

==============================================================

2) TV Failure Symptom: Full start-up, no raster after 30 seconds, backlights only, protectmode

4) Faulty Board Number: CPWBY3723TPZZ

6) Parts Failure Type: PWM regulator IC25 dead at DC voltage output pin, no reading

7) Shop Notes: IC24 regulator replaced as a service precaution

==============================================================

2) TV Failure Symptom: Distorted picture, solarized image

4) Faulty Board Number: CPWBX4010TPXZ

6) Parts Failure Type: Gamma correction chip IC5801 massive noise on v-Com signal trace (scope)

7) Shop Notes: After repair update firmware and drivers if available, for this model

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1) TV Model Number: LC-52D85UN (LCD-TV)

2) TV Failure Symptom: Full start-up, brief welcome screen, backlights only, protect mode

4) Faulty Board Number: DUNTKF239FM05

6) Parts Failure Type: 8-pin FET chip IC Q6274 shorted between gate and drain pins

7) Shop Notes: n.a

==============================================================

1) TV Model Number: LC-52D85UN (LCD-TV)

2) TV Failure Symptom: Full start-up, welcome screen, suddenly backlights only, protectmode

6) Parts Failure Type: Asynchronous buck regulator error at feedback pin (loop) and replaced

7) Shop Notes: Feedback inductor L6272 out of uH value and replaced

==============================================================

2) TV Failure Symptom: Stand-by, then immediate protect mode

6) Parts Failure Type: Mode control chip IC7905 no drive signal pin #5 (dead)

7) Shop Notes: n.a

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1) TV Model Number: LC-52E77U (LCD-TV)

2) TV Failure Symptom: Partial start-up the immediate protect mode

6) Parts Failure Type: Signal diode D7922 shorted

7) Shop Notes: n.a

=============================================================

2) TV Failure Symptom: Partial start-up then shut down into protect mode

7) Shop Notes: n.a

==============================================================

2) TV Failure Symptom: Partial start-up, then immediate protect mode

5) Board Location Number Of Faulty Part(s): R7914

6) Parts Failure Type: Resistor R7914 out of Ohm value (open)

7) Shop Notes: n.a

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2) TV Failure Symptom: Intermittent static picture, screeching

4) Faulty Board Number: DUNTKE046FE02

5) Board Location Number Of Faulty Part(s): C6003, C5890, C5892

6) Parts Failure Type: E-capacitors C6003/5890/5892 very high ESR levels

7) Shop Notes: E-capacitor C6014 replaced as a service precaution

==========================================================

1) TV Model Number: LC-52C6400U (LED-TV)

2) TV Failure Symptom: Static audio, snapping sounds, noise

4) Faulty Board Number: DKEYMF733FM82

6) Parts Failure Type: Audio chip IC2703 very warm, distorted audio output signal (scope)

7) Shop Notes: Audio chip IC2703 not available Entire main board replaced

=============================================================

1) TV Model Number: LC-60LE857U (3D LED-TV)

2) TV Failure Symptom: Partial start-up, then immediate protect mode, smart code

4) Faulty Board Number: RUNTKB116WJQZ

7) Shop Notes: Power rectifier D7131 replaced as a service precaution

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1) TV Model Number: LC-60LE845U

2) TV Failure Symptom: Sudden shut down into protect mode after full start-up

6) Parts Failure Type: PWM buck dead at DC output pin

7) Shop Notes: Check inductor L9603 for proper uH value

===========================================================

2) TV Failure Symptom: Stand-by then immediate protect mode

6) Parts Failure Type: Mode control chip IC7805 no source voltage output (dead switching)

7) Shop Notes: E-capacitor C7918 high ESR level and replaced

============================================================

4) Faulty Board Number: RUNTK4910TPZZ

6) Parts Failure Type: FET Q6210 shorted

7) Shop Notes: SMD capacitor C6256 out of uF value and replaced

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2) TV Failure Symptom: Partial start-up, then immediate protect mode

4) Faulty Board Number: RUNTKA798WJN1

5) Board Location Number Of Faulty Part(s): R7004

6) Parts Failure Type: Resistor R7004 out of Ohm value

7) Shop Notes: After repair, update firmware for this model

==========================================================

2) TV Failure Symptom: No HDMI signal on any HDMI port

6) Parts Failure Type: HDMI processor IC1504 erroneous HDMI signal output, chip verywarm

7) Shop Notes: IC1504 was not available Entire main board replaced Update firmware and drivers

==========================================================

2) TV Failure Symptom: Start-up attempt, then protect mode

4) Faulty Board Number: UNTKB285WJQZ

5) Board Location Number Of Faulty Part(s): CX7002

6) Parts Failure Type: Box capacitor out of uF value

7) Shop Notes: Spark-gap SG7001 charred and replaced

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2) TV Failure Symptom: Full start-up welcome screen, then backlights only, protect mode, smart code

4) Faulty Board Number: DUNTKG477FM01

6) Parts Failure Type: PWM buck regulator erroneous DC output (weak trace on scope)

7) Shop Notes: Check L6203 for proper uH value before replacing IC6210 Update firmware

===============================================================

1) TV Model Number: LC-60C52U (LCD-TV)

5) Board Location Number Of Faulty Part(s): F701, F4702, Q4707, Q4708

6) Parts Failure Type: Fuses F701/4702 open, FET’s Q4707/08 shorted

7) Shop Notes: Polypropylene capacitor C4708 out of uF value and replaced

==============================================================1) TV Model Number: LC-60C52U (LCD-TV)

4) Faulty Board Number: CPWBX3520TPZK

5) Board Location Number Of Faulty Part(s): Q18, Q20

6) Parts Failure Type: SMD FET’s Q18, Q20 shorted

7) Shop Notes: SMD capacitor C181 out of uF value and replaced

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1) TV Model Number: LC-60C6600U (Smart LED-TV)

7) Shop Notes: n.a

==============================================================

1) TV Model Number: LC-60C8470U (3D LED-TV)

2) TV Failure Symptom: Full start-up welcome screen, then backlights only, protect mode, smart code

6) Parts Failure Type: Asynchronous regulator chip IC6202 no DC output signal (dead)

7) Shop Notes: After repair, update firmware

=============================================================

2) TV Failure Symptom: TV shuts down into stand-by when changing channels or volume

4) Faulty Board Number: NQP0000000094

6) Parts Failure Type: Flash/EEPROM error at serial clock pin SCL

7) Shop Notes: Flash/EEPROM doesn’t need programming Update drivers if available

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2) TV Failure Symptom: Stand-by, immediate protect mode

6) Parts Failure Type: Control chip IC7603 dead at switching pins, error at feedback loop

7) Shop Notes: IC7603 was not available Entire SMPS board replaced

=============================================================

6) Parts Failure Type: SMD diode D6273 shorted

7) Shop Notes: n.a

=============================================================

7) Shop Notes: Update firmware and drivers for this model after repair

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1) TV Model Number: LC-60LE835U (3D LED-TV)

2) TV Failure Symptom: Start-up attempt, then shut down into protect mode, smart code

3) Faulty Board: SMPS/LED Driver Board

5) Board Location Number Of Faulty Part(s): R7305, Q7901

6) Parts Failure Type: Resistor R7305 out of Ohm value, NPN Q7901 shorted base

collector-7) Shop Notes: SMD transistor Q7901 is underneath R7305 on flip side Update

firmware

==============================================================

2) TV Failure Symptom: Full start-up, welcome screen, backlights only, then protect mode

4) Faulty Board Number: RUNTK4512TPZA

6) Parts Failure Type: SMD PWM buck regulator IC6003 no output voltage, internal switching short

7) Shop Notes: After repair, update firmware for this model

===============================================================1) TV Model Number: LC-60LE750U (Smart LED-TV)

5) Board Location Number of Faulty Part(s): F7001, Q7601, Q7602

6) Parts Failure Type: Fuse F7001 open, FET’s Q7601/02 shorted

7) Shop Notes: Disc capacitor C7623 out of pF value and replaced Update firmware

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1) TV Model Number: LC-60C46U (LCD-TV)

7) Shop Notes: Check inductor coil L5703 for proper uH value

============================================================

2) TV Failure Symptom: Full start-up, no welcome screen, backlights only, protect mode

4) Faulty Board Number: RUNTK4570TPZA

6) Parts Failure Type: FET Q6210 shorted

7) Shop Notes: SMD capacitor C6259 out of uF value and replaced Update firmware

=============================================================1) TV Model Number: LC-70LE857U (3D LED-TV)

2) TV Failure Symptom: Smart start-up, welcome screen, shut down, protect mode, smart code

6) Parts Failure Type: Bucking converter IC9606 no switching output pins #5/6 (dead)

7) Shop Notes: Check L9604 for proper uH value before replacing IC9606 Update firmware

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2) TV Failure Symptom: Start-up attempt, then immediate protect mode, smart code

6) Parts Failure Type: Control chip IC7801 no switching signal output (dead scope trace),internal error

7) Shop Notes: Check SMD resistor R7809 of IC7801 for proper Ohm value Update firmware

===========================================================

1) TV Model Number: LC-70C7450U (3D LED-TV)

2) TV Failure Symptom: Start-up attempt, shut down into protect mode, smart code

7) Shop Notes: Check resistor R7305 for proper Ohm value Update firmware after repair

=============================================================

2) TV Failure Symptom: Intermittent distorted picture interruption after TV warms up

6) Parts Failure Type: Timing Control BGA chip IC5801 loose solder-ball connection

7) Shop Notes: IC5801 re-balled and reseated Update firmware after repair

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2) TV Failure Symptom: Start-up attempt, then shut down into protect mode, smart code

7) Shop Notes: Check resistor R7305 for proper Ohm value Update firmware

==============================================================

Philips Plasma TV Case history

1) TV Model Number: 42PF9631D/10 (Plasma-TV)

2) TV Failure Symptom: Power-up attempt, then protect mode

3) Faulty Board: Y-Sustain Board

4) Faulty Board Number: FPF33R-YSS0042

5) Board Location Number Of Faulty Part(s): Q12, Q13, D217

6) Parts Failure Type: FET’s Q12/13 shorted, SMD diode D217 shorted

7) Shop Notes: n.a

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2) TV Failure Symptom: Power-up attempt, then protect mode

3) Faulty Board: Y-Sustain Board

4) Faulty Board Number: FPF29R-YSS0038

5) Board Location Number Of Faulty Part(s): C413, C419, C418

6) Parts Failure Type: Y-board E-capacitors C413/419 bulged, C418 very high ESR level

7) Shop Notes: E-caps C404, C410 also high ESR and replaced

============================================================1) TV Model Number: 42PF9966/37 (Plasma-TV)

3) Faulty Board: X-sustain Board

4) Faulty Board Number: 996500025106

5) Board Location Number Of Faulty Part(s): Q4009, Q4010, R4037

6) Parts Failure Type: X-board FET’s Q4009/4010 shorted, SMD resistor R4037 out of Ohm value

7) Shop Notes: E-cap C4027 high ESR and replaced

============================================================

1) TV Model Number: 42PF9966/37 (Plasma-TV)

2) TV Failure Symptom: Start-up attempt, shut down into protect mode

3) Faulty Board: X-Sustain Board

5) Board Location Number Of Faulty Part(s): Q4016, R4030

6) Parts Failure Type: X-board IGBT Q4016 shorted, SMD resistor R4030 out of Ohm value

7) Shop Notes: Check SMD FET’s Q4007, Q4008 for proper source voltage output (scope)

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2) TV Failure Symptom: Full start-up, quick menu, then raster only no picture/menu

3) Faulty Board: Logic Board (T-Con)

6) Parts Failure Type: LDO regulator U2021 no DC voltage output (dead)

7) Shop Notes: C2086 also very high ESR and replaced

==============================================================

2) TV Failure Symptom: Horizontal lines across screen (middle section)

3) Faulty Board: Y-Buffer Board (Lower)

4) Faulty Board Number: LJ92-00994A

5) Board Location Number Of Faulty Part(s): U5505, U5506

6) Parts Failure Type: Buffer scan IC’s both burned holes on top left of CMOS package

7) Shop Notes: When replacing new Y-Buffer, adjust Y-drive, update firmware for this model

==============================================================

2) TV Failure Symptom: Power-up attempt (3 relay clicks) then protect mode

4) Faulty Board Number: LJ44-00058B

5) Board Location Number Of Faulty Part(s): C8023

6) Parts Failure Type: E-capacitor C8023 bulged and replaced

7) Shop Notes: n.a

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2) TV Failure Symptom: Power-up attempt, immediate protect mode

6) Parts Failure Type: X-board SMD FETs Q4001/4002 shorted

7) Shop Notes: n.a

=====================================================

2) TV Failure Symptom: No start-up, immediate protect mode

6) Parts Failure Type: X-board IGBT’s Q4011/4012 both shorted

7) Shop Notes: SMD resistor R4064 out of Ohm value and replaced

======================================================

1) TV Model Number: 50PFP5532D/05 (Plasma-TV)

2) TV Failure Symptom: Start-up attempt, immediate protect mode

5) Board Location Number Of Faulty Part(s): F4700, Q4102, Q4103

6) Parts Failure Type: X-board fuse F4700 open, FET’s Q4102/4103 shorted

7) Shop Notes: n.a

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2) TV Failure Symptom: Raster only no picture or menu

3) Faulty Board: Logic Board (T-Con)

6) Parts Failure Type: LDO regulator not producing output DC voltage, internal error

7) Shop Notes: E-caps C2043, C2195 also very high ESR levels and replaced

=============================================================

2) TV Failure Symptom: Start-up attempt, (3 relay clicks) then protect mode

5) Board Location Number Of Faulty Part(s): C8033, R8078

6) Parts Failure Type: E-capacitor C8033 bulged, resistor R8078 out of Ohm value

7) Shop Notes: n.a

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2) TV Failure Symptom: Start-up attempt, then protect mode

5) Board Location Number Of Faulty Part(s): DC8006

6) Parts Failure Type: E-capacitor DC8006 bulged

7) Shop Notes: n.a

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1) TV Model Number: 50PFL5708/F7 (Plasma-TV)

2) TV Failure Symptom: Must unplug TV to turn off

4) Faulty Board Number: 56TXDCB01K0520003

6) Parts Failure Type: Flash/EEPROM serial data (SCL) error (scope)

7) Shop Notes: Flash/EEPROM doesn’t need programming Update firmware if available

==========================================================

1) TV Model Number: 50PFL5708/F7 (Plasma-TV)

2) TV Failure Symptom: Sudden shut down after full power-up, then protect mode

4) Faulty Board Number: 756TXDCB01K0520003

6) Parts Failure Type: Asynchronous buck regulator U701 no output voltage (dead)

7) Shop Notes: Check L701 for proper uH value

==========================================================

1) TV Model Number: 52TA648BX/37 (LCD-TV)

2) TV Failure Symptom: Start-up attempt then immediate protect mode

5) Board Location Number Of Faulty Part(s): ZD951

6) Parts Failure Type: Zener diode ZD951 shorted

7) Shop Notes: Diode D950 leaky and replaced

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1) TV Model Number: 52PFL3603D/F7 (LCD-TV)

2) TV Failure Symptom: Full power-up, backlights only, then shut down into protect mode

5) Board Location Number Of Faulty Part(s): F100

6) Parts Failure Type: SMD fuse F100 open

7) Shop Notes: n.a

===============================================================

2) TV Failure Symptom: Full power up, brief menu with static picture, backlights only, protect mode

6) Parts Failure Type: Power IC (level shifter) dead at pin #23 No 7V to output buffer

7) Shop Notes: After replacing IC401 update firmware & drivers if available for this model

=============================================================

2) TV Failure Symptom: Power-up, backlight flash once, shut down into protect mode

4) Faulty Board Number: RDENC2591TPZF

5) Board Location Number Of Faulty Part(s): F7505A, MOS752A

6) Parts Failure Type: SMD fuse F77505A open, FET chip MOS752A shorted

7) Shop Notes: The replacement FET chip was slightly larger than original, made custom fit

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2) TV Failure Symptom: Full start-up, blue screen flash once, backlights only, protect mode

5) Board Location Number Of Faulty Part(s): FET300

6) Parts Failure Type: 8-pin FET chip FET300 no switching output on pins #5/6 (dead scope trace)

7) Shop Notes: FET300 was replaced with the same chip from junk board Check FET301 also

===============================================================

1) TV Model Number: 52PFL7762D/05 (LCD-TV)

2) TV Failure Symptom: Power-up attempt, no backlights, shut down into protect mode

4) Faulty Board Number: RDENC2305TPZF

5) Board Location Number Of Faulty Part(s): F1001, Q1001, Q1002

6) Parts Failure Type: Fuse F1001 open, FET’s Q1001/1002 shorted

7) Shop Notes: n.a

===============================================================

2) TV Failure Symptom: Full start-up, brief menu, backlights only, protect mode

5) Board Location Number Of Faulty Part(s): FET301

6) Parts Failure Type: SMD FET FET301 shorted (GDS)

7) Shop Notes: FET303 was replaced as a service precaution

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2) TV Failure Symptom: Stand-by, one relay click, then immediate protect mode

6) Parts Failure Type: Box capacitor C604 no pF reading (dead)

7) Shop Notes: n.a

==============================================================

2) TV Failure Symptom: Full start-up, no raster, backlights only, protect mode

4) Faulty Board Number: CPWBX3749TPZB

6) Parts Failure Type: SMD FET’s Q37, Q34 shorted

7) Shop Notes: n.a

==============================================================

2) TV Failure Symptom: Full start-up, backlights only, protect mode

6) Parts Failure Type: SMD fuse F100 open

7) Shop Notes: n.a

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2) TV Failure Symptom: Start-up attempt, then immediate protect mode

5) Board Location Number Of Faulty Part(s): ZD951

6) Parts Failure Type: Zener diode ZD951 shorted

7) Shop Notes: Check diode D950 for leakage

=============================================================

6) Parts Failure Type: Control chip IC601 no switching output signal on scope (dead)

7) Shop Notes: IC601 replacement from other board with same problem Entire SMPS replaced

==============================================================

1) TV Model Number: 55PFL5907/F7 (Smart LED-TV)

4) Faulty Board Number: ADTVC2415XE1

6) Parts Failure Type: Box capacitor C9910 no reading, (dead)

7) Shop Notes: Box capacitor C9911 replaced as a service precaution

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1) TV Model Number: 55PFL3907/F7 (LCD-TV)

2) TV Failure Symptom: Partial start-up, backlights flash once, protect mode

3) Faulty Board: Inverter Board (Slave)

4) Faulty Board Number: 6632L-0614A

6) Parts Failure Type: FET’s Q23/24 shorted

7) Shop Notes: n.a

===========================================================

1) TV Model Number: 55PFL4706/F7 (LED-TV

2) TV Failure Symptom: Partial start-up, then shut down into protect mode

4) Faulty Board Number: UPBPSPFSP003

7) Shop Notes: n.a

============================================================

2) TV Failure Symptom: Full start-up, backlights only, protect mode

4) Faulty Board Number: LJ94-03321H

6) Parts Failure Type: Fuse F1 open

7) Shop Notes: This TV had other main board problems with 12V supply

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