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 - DEH P770MP _ DEH P7700NMP _ DEH P7750MP

HOW TO DISASSEMBLE - PIONEER - DEH P770MP _ DEH P7700NMP _ DEH P7750MP

DISASSEMBLY PROCEDURE
Remove the Case.
Removing the CD Mechanism Module.
Remove the four screws.
Disconnect the connector and then remove the CD Mechanism Module.
Removing the Grille Assy.
Remove the two screws and then remove the Grille Assy.
CLICK ON THE PICTURES TO ZOOM
Removing the Tuner Amp Unit.
Remove the screw.
Remove the three screws.
Straighten the tabs at three locations indicated.
Remove the screw and then remove the Tuner Amp Unit.
How to hold the Mechanism Unit
Hold the top and bottom frame.
Do not squeeze top frame's front portion too tight, because it is fragile.
Removing the Upper and Lower Frames
  • With a disc clamped, remove the four springs (A), the two springs (B), the two springs (C), and the  four screws.
  • To remove the upper frame, open it on the fulcrum A.
  • While lifting the carriage mechanism, remove the three dampers.
  • With the frames removed, insert the connectors coming from the main unit and eject the disc.
Caution: Before installing the carriage mechanism in the frames, be sure to apply some alcohol to the  dampers and set the mechanism to the clamp mode.
Removing the Pickup Unit
  • Apply shorting solder to the Pickup flexible cable.  Disconnect the cable.
  • Set the mechanism to the clamp mode.
  • Remove the lead wires from the inner holder.
  • Remove the washer, styling holder, change arm, and pickup lock arm.
  • While releasing from the hook of the inner holder, lift the end of the feed screw.
Caution: In assembling, move the planet gear to the load/eject position before setting the feed screw in the inner holder.