Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!

Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday 16 February 2019

TOSHIBA -DLP PROJECTION TV LIGHT ENGINE REPLACEMENT 46HM84 46HMX84 53HM84 52HMX84 62HM84 62HMX84

TOSHIBA -DLP Projection TV Light Engine Replacement 46HM84 46HMX84 53HM84 52HMX84 62HM84 62HMX84

Talen Light Engine Disassembly Lamp Socket Removal.
Remove two small screws marked here the female lamp socket to the frame of the light engine lamp housing.

Ballast Power Circuit Cover Removal
Remove two small screws securing the cover to the floor of the Light Engine. Feed lamp socket and wires the hole at the top cover.

Ballast Power circuit PC board removal.
Disconnect the Power Input; 300V; from the Main Power Supply board. Disconnect the plug from DMD PC board that connects to vertical PC board on the Ballast Supply. Push four retaining clips back to release the PC board.

Thermostatic circuit breaker removal
AC Power at 120V wall current flows through the thermostatic circuit breaker. So be careful to unplug the AC cord from the wall socket, before proceed. Remove two self tapping screws securing the thermostatic circuit breaker to the top of lamp frame housing. A good thermostatic circuit breaker should mesure 'Zero' ohms resistance, and bad breaker will measure as open. The temperature cutoff is at 150 degree C and 302 Degree F. The circuit breaker monitors the lamp temperature. The action cuts off AC from the set and main processor was never turned off.
The LED blinking code for Thermal Shut down is, a Blinking Red LED, 3 seconds, and 3 seconds Off. The Green LED will be Off.

Thermostatic Circuit Breaker Removal

IR | UV Filter cover removal.
After removal of thermostatic circuit breaker, remove two small screws securing the cover to the floor of the Talen Light Engine.

Fans Removal
The two cooling fans are used with the light engine. The first fan is, Lamp Exhaust that provides cooling to the lamp. The other fan provides cooling to DMD. Both fans are connected to the Main Power supply. Both fans are variable speed type, and controlled by back End Processor {BEP}. Both fans have rotation sensors for fan stop condition.
Remove 2 scres with letter [A] securing the lamp exhaust fan housing to the floor of the Light Engine. Remove 2 large scres with letter [C] securing DMD cooling fan bracket.