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

HOW TO DISASSEMBLE - PIONEER PDP-4280X - PLASMA DISPLAY

HOW TO DISASSEMBLE - PIONEER PDP-4280X - PLASMA DISPLAY


DISASSEMBLY
Function button panel.
Remove the two screws.
Remove the function button panel.
Side input cover
Remove the two screws.
Remove the side input cover.
Power button holder
Remove the two screws.

Remove the power button holder.
REAR CASE REMOVAL
Remove the two protect sheets C.
Remove the 23 screws. (AMZ30P060FTB)
Remove the nine screws. (TBZ40P080FTB)
Remove the four screws. (ABA1332)
Remove the four screws. (BBZ40P160FTB)
Remove the one screw. (ABA1341)
Remove the rear case (428).
When assembling the Rear Case (428), tighten the screws in the following sequence:
Tighten the screw (3-1).
Tighten the two screws (3-2).
Tighten other screws.
PCB ASS'Ys
Side I/O Assy
Remove the four screws.
Remove the two screws.
Remove the three screws.
Remove the side input panel.
42X Drve Assy.
Remove the two screws.
Remove the side input shield with PCB.
Diagnose the 42 X DRIVE Assy.
42Y Drive Assy
Remove the two screws
Remove the function button shield with PCB
Diagnose the 42 Y DRIVE Assy.
CLICK ON THE PICTURES TO ZOOM
How to remove the bridge connector connecting between the MAIN and TANSHI Assy’s
Grip the two short edges of the connector with long nose pliers.
Insert a finger between the long nose pliers and the board to protect the board and the mounted  parts on the board from accidental damage by  the pliers then, using your finger as a fulcrum and  the pliers as a lever, pry the connector upward to remove it.
TERMINAL PANEL-B
Remove the 12 screws.
Remove the 10 screws.
Remove the three screws.
Remove the terminal panel B.
The wiring shown in the photo is different from the actual wiring, because the product in the photo is a prototype. Upon servicing, be sure to restore the original wiring of the unit after repair work.
FRONT CASE ASS'Y
Remove the one screw.
Remove the two screws.
Pull the lower part of the Front case Assy toward you and out.
Remove the Front case Assy, by pulling it upward.
ACCESS TO DIGITAL ASSY
Remove the six screws.
Remove the four screws.
Lift the Multi base section to the direction of the arrow.
SPEAKER BOX ASS'Y  LEFT & RIGHT
LEFT
Remove the six screws.
Remove the four screws.
Lift the Multi base section to the direction of the arrow.
RIGHT
Remove the one screw.
Remove the switch holder (428).
Disconnect cables, connectors, as required.
Remove the two screws.
Remove the one screw.
Remove the one screw.
Remove the speaker box Assy R.
EXCHANGE OF SCAN IC
Loosen the jumper wire.
Remove the 42RLS&IR Assy by removing the one nylon rivet.
Remove the two screws.
Remove the locking wire saddle.
Unhook the six hooks.
Remove the panel holders V1 (427) and V2 (427).
Remove the three screws.
Remove the two screws.
Remove the front chassis VL (427)
Posted By: FRANK at 05:39
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