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 !

Tuesday 12 February 2019

TOSHIBA - 46HM84_46HMX84_52HM84_52HMX84_62HM84_62HMS84_DISASSEMBLE PROCEDURE

TOSHIBA - 46HM84_46HMX84_52HM84_52HMX84_62HM84_62HMS84_DISASSEMBLE PROCEDURE




POWER SUPPLY INTERCONNECTS

PIN OUTS FOR THE VOLTAGE SOURCES SUPPLIED TO THE G-HYPER MODULE IN THE 52HM84 AT PLUGS PA01, P891 & P892.




Click on image.

PLUG PIN ASSIGNMENTS FOR POWER DISTRIBUTION FOR HDMI , 52HM54

PLUG PIN ASSIGNMENTS FOR AUDIO POWER DISTRIBUTION FOR 52HM84 DLP


PLUG PIN ASSIGNMENTS FOR DMD POWER DISTRIBUTION FOR 52HM84 DLP


PLUG PIN ASSIGNMENTS FOR POWER DISTRIBUTION FOR DOOR SWITCH - FANS 52HM84


DISASSEMBLE PROCEDURE

LAMP DOOR DISASSEMBLE:
  • Loosen the large 'Thumb' screw located at the front of the door.  If the unit is a 52" model, it must be removed form its base in order to the remove the Lamp Door.
  • Behind this door is lamp ass'y and is removable with two screws located at the bottom.  If the door is not closed, the power supply will be disabled and the unit cannot operate.
  • With the lamp door removed, unscrew the 13  screws attaching the back cover and pull it straight back, while guiding the AC cord through the jack panel hole.

  • If it is necessary to access the front jack panel or keyboard ass'y the front control ass'y can be removed by gently pulling it forward.
  • With front panel off these two areas can be accessed.
  • The jack panel can be removed and repaired but a problem other than connections with keyboard requires that the front panel and keyboard be replaced as one ass'y.
  • With back cover off, the two main sections, Light Engine, and Main Chassis of the unit are exposed.
  • Light engine removal begins by removing the brace in the middle of the unit.  Remove 3 screws attaching the brace to the upper and lower parts of the back opening.  Then remove the brace.  Next two screws at the bottom of the light engine must be removed.  A light shield mounted just above the DMD and behind the lens ass'y must be removed from the upper part of the cabinet opening.  This piece must be removed in order fro light engine to  slide out the back of the cabinet.  To remove this, one screw must be removed and the wires held the cable clamps removed.  

  • The view at the chassis ass'y and light engine after they are removed.
  • Shows the light engine.
  • Main chassis
  • The upper section of this unit can be separated from the lower section and serviced if necessary.  The upper section contains the mirror ass'y, right and left speaker ass'ys and IR receiver, and of course, the screens.  To remove the upper ass'y from the lower, unplug the cables right and left speakers and IR receiver.  These cables are located just above the light engine and routed through a cable path in the gray light shield around the lens ass'y.
  • After the back cover and front trim with keyboard and front AV jack ass'y have been removed from the unit, 2 screws shown here, just above the rear jack panel can be removed.
  • The upper screen ass'y may be lifted off of the lower unit containing the chassis and light engine.
Posted By: FRANK at 04:04
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