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 !

Wednesday, 30 January 2019

SONY KDL40R450A, KDL46R450 LCD TV – HOW TO DISASSEMBLE, HOW TO REPLACE THE MAIN BOARD

SONY KDL40R450A, KDL46R450 LCD TV – HOW TO DISASSEMBLE, HOW TO REPLACE THE MAIN BOARD

REPAIRING THE TV

If the latest Software does not correct the issue, complete the following:
1. Verify the television has the symptom the customer indicated.
2. Replace part causing the error.
3. Install the latest version of Software. (Required for ALL repairs)
4. Perform the required service adjustments and checks.
5. Verify the repair resolved the issue.

REF. NO;   PART NO;   DESCRIPTION - KDL-46R450A
51 1-910-107-50 FFC CABLE 40 MB-KEY 6P
52 1-910-107-47 CONNECTOR ASSEMBLY 40/46 PSU-LED
53 1-910-107-44 GROUND CABLE 40 MB-PSU (M) (LA,MX MODELS ONLY)
54 1-910-107-46 GROUND CABLE 40 MB-S0URCE
55 1-910-107-48 (LVDS) FFC CABLE 40 MB-TCON 51P
56 1-910-107-49 FFC CABLE 40 MB-IR 10P
57 1-910-107-43 CONNECTOR ASSEMBLY 40 MB-SP LR 4P
58 1-910-107-42 CONNECTOR ASSEMBLY 40 MB-PSU 14P
59 1-910-107-45 GROUND CABLE 40 MB-PSU (L)
101 1-910-107-67 FFC CABLE 46 MB-KEY 6P
102 1-910-107-47 CONNECTOR ASSEMBLY 40/46 PSU-LED
103 1-910-107-62 GROUND CABLE 46 MB-PSU (M)
(LA,MX MODELS ONLY)
104 1-910-107-64 GROUND CABLE 46 MB-S0URCE
105 1-910-107-65 (LVDS) FFC CABLE 46 MB-TCON 51P
106 1-910-107-61 CONNECTOR ASSEMBLY 46 MB-SP LR 4P
107 1-910-107-66 FFC CABLE 46 MB-IR 10P
108 1-910-107-60 CONNECTOR ASSEMBLY 46 MB-PSU 14P
109 1-910-107-63 GROUND CABLE 46 MB-PSU (L)
The following information explains how to remove the Table-Top Stand and Rear Cover.
REMOVING THE TABLE-TOP STAND
Place TV facing down on a soft and flat surface.
Remove 2 screws from Table-Top Stand and carefully detach from Rear Cover.
REMOVING THE COVER UNDER
Remove the 13 screws from the Cover Under.
Hold the bottom of the Cover Under with both thumbs and flip to open it.
Grasp the Cover Under from the corner and lift to detach from the bottom.
REPLACING THE MAIN BOARD
The Main Board used in these models is available for repair
Disconnect LVDS and FFC connectors.
a. Press both sides to unclamp connector and pull to release.
b. Lift the black bar and pull blue FFC cables to release.
Unplug connectors from the Main Board
Remove 5 screws from the Main Board
Lift to detach from the Rear Cover.
Replace with new Main Board.
Reconnect the LVDS, FFC Cables and all connectors.
a. Press both sides to clamp connector and insert back.
b. Hold the blue FFC cables and insert back in the connector. Once the black marking line is straight, close the bar to secure position.
Posted By: FRANK at 16:00
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