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Toshiba 52HM95 Support Question

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Question posted by Xovalbabii on October 28th, 2011

I Replaced The Bulb And My Toshiba Still Isnt Working,any Suggestions?

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Answer #1: Posted by TVDan on October 28th, 2011 11:36 PM
This answer was accepted by the poster of the original question.
TVDan

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Normally, when the "lamp" indicator lites up, you have a bad lamp, but  what this indication is, the microprocessor has not received the signal from the optical engine that "the lamp is lit and all is well". There are many things that need to happen before the lamp will start up. The power supply must develop all the needed voltages required by all the rest of the circuits, the cooling fans must be running at the correct speeds, the lamp door switch must be closed (interlock switch), The Color Wheel must be able to spin at the 1800 RPM and lock in sync with the video signal, the ballast circuit must be able to develop the 5000 volts to start-up the mercury vapor lamp, and the lamp needs to be in good working condition to light up. There should be no weird noises pointing to the fact that a fan or the color wheels motor bearings are starting to go bad. The normal failures are the lamp and the color wheel. Unfortunately there is NO way to test a lamp. I have seen nearly 100 lamps come into my shop that has failed in less than a month, and many that didn't last one full day. These lamp you buy off the web are many times factory seconds. I have had some customers send back a lamp two, three, and four times before they got one that lasted through the warranty. Our shop only buys from the manufacturer. When you turn on this DLP HDTV the fans will start up first and then the color wheel will spin-up. If the color wheel doesn't get up to the 1800 RPM and maintain that speed then the lamp will not get to enable pulse. So if the color wheel and the fans are working quietly then the enable signal is given to the Ballast circuit to make the 5000 volts to start up the lamp. Many times I've seen this circuit get damaged after a lamp has shattered. If the set shuts down, the indicator will telling the customer to change the lamp, and of course after the customer does it, the problem remains the same. The microprocessor is located in the signal cluster and all it knows is that the lamp didn't light up correctly, so it gives the change lamp LED indicator.


TV Dan

Related Toshiba 52HM95 Manual Pages

Printable Spec Sheet - Page 1

52" DIAGONAL THEATERWIDE® HD DLP™ (720p) 52HM95 KEY FEATURES Optional Stand ST5265 • Integrated HD DLP™ Projection TV • SRS® WOW™ with ATSC/QAM Tuners • Separate Woofers and • TV... the reception of all critical elements to display pictures from a Toshiba Television. >> OmniViewer™ Memory Card Slots accommodate 5 different types of...
Printable Spec Sheet - Page 2

... Cable Ready ) X TV Guide On Screen™ X One-Touch HD Recording Control ** X Live Pause / Rewind Capability ** X Two IEEE1394 Ports (DTVLink) X Digital Encoder X OmniViewer™ Memory Card Slot (SD, SM, MS, CF,& MM) X TALEN™ (Toshiba Advanced Light Engine) DLP™ Engine X Full 1280 x 720 Mirrors for illustrative purposes only. All television pictures are...
Owner's Manual - English - Page 1

... 52HM95 62HM95 © 2005 TOSHIBA CORPORATION All Rights Reserved [A-PDFO] HM95_R1_001_061505 RICA CONSUMER PR O 14001 FILE No. Refer to appear on again quickly when the lamp unit is hot, it may take several minutes for details. OWNER'S MANUAL Integrated High Definition DLP™ Projection Television HIGH-DEFINITION TELEVISION Compatible with your Toshiba dealer about this TV. For...
Owner's Manual - English - Page 2

... CEA is capable of TV and consumer electronics furniture ...Toshiba stand listed below. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. (This does not apply to environmental considerations. Television Stand Model 46HM95 ST4665 52HM95 ST5265 62HM95 ST6265 NOTE TO CATV INSTALLERS IN THE U.S.A. Remember that the cable ground shall be regulated due to "Lamp unit replacement...
Owner's Manual - English - Page 4

...8226; Dispose of the used lamp unit by the approved method for your TOSHIBA TV, follow this manual to a Toshiba Authorized Service Center. 37) If you to dangerous voltage or other electrical circuits... of mercury may be regulated due to determine that the TV is being turned on pages 103-105. See "Lamp unit replacement and care" on the lenses. HM95_R1_002-04_061505 4 6/24...
Owner's Manual - English - Page 5

... related to technology of this TV, there may fail, at the bottom center of the TV front indicate your TV's current status. See "Lamp unit replacement and care" on pages 103...Important Safety Information 2-4 Important notes about your DLP™ projection TV 5 Chapter 1: Introduction 7 Welcome to Toshiba 7 Features of your new TV 7 Overview of steps for several cooling fans to moderate...
Owner's Manual - English - Page 6

...52 Viewing the system status 52 Chapter 7: Using the TV Guide On Screen® interactive program guide 53 Setting up the TV Guide On Screen® system 53 Navigating the TV Guide On Screen® system 54 TV...TV Guide On Screen® Icons 56 TV...Using the TV's features 67...code 93 Blocking TV programs and ...TV Guide On Screen® FAQs 100-102 Chapter 11: Appendix 103 Lamp unit replacement...
Owner's Manual - English - Page 11

... this TV must be...Toshiba...TV.... TV ...TV. Separate audio cables are required for connecting receivers with your TV...TV...TV...TV's DIGITAL AUDIO OUT terminal. Chapter 2: Connecting your TV have that...TV TO A PERSONAL COMPUTER (PC). All other required cables, if not provided with your TV...TV's IR OUT and G-LINK® ports. See page 20. THIS TYPE OF DAMAGE IS NOT COVERED BY YOUR TOSHIBA...
Owner's Manual - English - Page 12

...your specific devices, refer to each device's owner's manual. You will not work with the use of a CableCARD™ and may take up , insert...to "pair" with your Toshiba television, please contact Toshiba Consumer Solutions by calling (800) 631-3811 or by direct connection to a cable system providing such programming. Chapter 2: Connecting your TV About the connection illustrations You ...
Owner's Manual - English - Page 14

...television programs, videotapes, DVDs, and other materials is selected. To view basic and premium Cable channels: Turn OFF the VCR. To enable the TV Guide On Screen® system to ). Make sure the VCR is set to work... the TV Guide On Screen® system. 14 HM95_R1_012-25_061505 14 Copyright © 2005 TOSHIBA CORPORATION. See Chapter 5 for details on the TV to use the TV Guide On...
Owner's Manual - English - Page 16

.... 16 HM95_R1_012-25_061505 16 Copyright © 2005 TOSHIBA CORPORATION. Chapter 2: Connecting your TV Connecting a DVD player with S-video, a VCR, and a Cable box You will be able to use , distribution, or revision of television programs, videotapes, DVDs, and other materials is set of A/V inputs on the TV. (See the illustration, which shows the VCR connected...
Owner's Manual - English - Page 20

.... Analog audio amplifier LINE IN LR OUT 20 HM95_R1_012-25_061505 20 Copyright © 2005 TOSHIBA CORPORATION. "Dolby" and the double-D symbol are not compatible with the TV in the same Audio Setup menu (above). Also see "Turning off the TV's built-in speakers in single-window mode. • The DIGITAL AUDIO OUT terminal...
Owner's Manual - English - Page 21

... options for this feature to control many infrared remotecontrolled devices (such as required to connect the device(s) to the TV (see pages 13-20) To connect the IR blaster cable: 1. Toshiba Video 3 TOP MENU ENTER EXIT TV/VIDEO EXIT CHANNEL VOLUME MENU POWER See pages 45-49 for the desired function. The signal...
Owner's Manual - English - Page 24

...the device's IEEE1394 connector. IEEE1394 Device Management Brand Type Label Analog Input Used Connected TOSHIBA AVHD MY DEVICE None No Reset Done 5. Important information regarding IEEE1394 device interconnection ...always place the device at some electronics suppliers) may not work properly with the other devices in the TV's memory. The IEEE1394B protocol is faster and intended to edit...
Owner's Manual - English - Page 25

...AVHD or D-VHS recording devices. HM95_R1_012-25_061505 25 Copyright © 2005 TOSHIBA CORPORATION. After you connect your devices to the TV, you have a Cable box, attach the other inputs on the front... devices.* 2. Chapter 2: Connecting your TV G-LINK® connection • This connection is necessary for the TV Guide On Screen® system to work with your cable box to receive program...
Owner's Manual - English - Page 42

...or highlight Abort in its memory. Channel Numbers CHANNEL yz TV front touchpad CHANNEL z / y MENU (ENTER) 42 Copyright © 2005 TOSHIBA CORPORATION. All rights reserved. To program channels automatically: 1. ... Select CH RTN Back EXIT Exit ANT 1 Antenna Scanning channels, please wait ... 52% Abort The TV will appear on-screen). Make sure you have a CableCARD™ inserted (page 12...
Owner's Manual - English - Page 97

...TOSHIBA CORPORATION. Also see Chapter 2. • Antenna reception may be poor. No picture after turning on TV • If you set the CableClear®/DNR feature to AUTO to reduce visible interference in rare instances, when viewing certain content (e.g., television..., a standard video or S-video IN terminal must be replaced (pages 103-105). Cannot view external signals or channel ...
Owner's Manual - English - Page 98

... recommended solution has not worked, use its available features. Replace the batteries (page 28). • Your TV remote control may not operate certain features on -screen TV stops responding to controls ...procedure as described on page 52. 98 Copyright © 2005 TOSHIBA CORPORATION. Refer to the owner's manual for the U.S. The PIN code you will display on page 52. • Make sure ...
Owner's Manual - English - Page 99

...105). Review "How to replace the lamp unit" on the TV front touchpad (to the left of BUS line. If the problem persists, contact a Toshiba Authorized Service Center. 5) ...progress while the TV is OFF. • Red ON (solid) and Green ON (solid) = A recording is in progress while the TV is not working properly. If the problem persists, contact a Toshiba Authorized Service ...
Owner's Manual - English - Page 110

..., 17 D Device connections 12-25 Defaults, restore TV factory 52 Digital Audio Out 20 Digital signal meter 52 DNR (Digital Noise Reduction 80 Dolby Digital 20, ...blaster 21 JPEG 87-90 L Labeling video inputs 68 Lamp mode 75 Lamp unit replacement 103-105 Language selection 41 Last mode memory feature 92 LED indications 8, 9, 99...TOSHIBA CORPORATION. All rights reserved. 6/27/05, 7:10 PM

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