REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

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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..............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 March 2019

RPTV _ HITACHI _ 51/57UWX20B _ 51/57GWX20B - HOW TO DISASSEMBLE - SCREEN FRAME & LIGHTBOX

RPTV _ HITACHI _ 51/57UWX20B _ 51/57GWX20B - HOW TO DISASSEMBLE - SCREEN FRAME & LIGHTBOX


The following instructions are for models with lightbox design. The new cabinet design will enable to remove the light box assembly, without taking complete PTV out for service.
Remove the Front Speaker Grille.
Pull the Speaker Grille off by placing your hand behind the outside corners and pulling straight out.
The bottom picture shows the TV after the Speaker Grille has been removed.
Remove the screws on the left bottom corner of the screen frame.

Remove the screws on the right bottom corner of the screen frame.
Remove the screen assembly by placing your hands on corners and lifting up to unhook from the cabinet.
Use additional help when necessary.
Carefully store Screen Frame Assembly.
After taking off the screen assembly, the cabinet light cavity will be exposed.
Remove the 4 screws on the left of the CRT Lens assembly.
Remove the 4 screws on the right of the CRT Lens assembly.
Now move to the back of the PTV. The lower rear board must be removed.
Remove 14 screws to remove the lower rear board.
Now, move to the chassis area on the back of the TV.
Remove the 3 screws to the right of the chassis as shown.
Remove one screw on the left of the chassis as shown.
Remove the screw on the right corner of the light box.
Remove the screw on the left corner of the light box.
Remove the screws on the front that hold the light box.
The picture shows the right side.
Remove the screws on the front that hold the light box.
The picture shows the left side.
Remove the control panel.
Remove the board on top of the light box assembly.
Lift the Light box in the center and slide backwards until it is out. Use additional help if necessary.
The Light Box is now ready for easy transport to a designated service and repair facility.
Posted By: FRANK at 04:03
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