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!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 13 March 2019

MITSUBISHI - WD-52627 - WD- 52628 - WD- 62627 - WD- 62628 -WD- 62827 - WD- 62927 - HOW TO REPLACE OPTICAL ENGINE

MITSUBISHI - WD-52627 - WD- 52628 - WD- 62627 - WD- 62628 -WD- 62827 - WD- 62927 - HOW TO REPLACE OPTICAL ENGINE

OPTICAL ENGINE REPLACEMENT
52” & 62” Models OPTICAL ENGINE REPLACEMENT

Pull engine from base and remove all the listed parts on this page and transfer them to new engine. Then transfer EEPROM data and realign mechanical.
  • LAMP DUCT ENGINE-PWR-PWB
  • LENS CUSHION -- BALLAST PLATE
  • ENGINE PLATE -- INTERFACE PWB
  • BOTTOM PLATE -- LAMP CARTRIDGE
  • LAMP FAN -- GROUND STRAPS
VIEW FROM FRONT
VIEW FROM BACK
DETAILS

  • Remove 3 screws
  • Remove mounting screw.
  • Disconnect JA, JF, Lt connectors
  • Disconnect JC and CD connectors

  • Remove DVI cable and disconnect JE and  DT connectors. Remove Ground Straps.
  • Remove wire tie near support post.

  • Remove (3) screws from Interface PWB
  • Remove CJ3 connector from Interface PWB
  • Remove (2) screws from Side Lock
  • Route wiring so that it does not snag on support post.

  • Disconnect PA1 and J3 connectors and remove Engine-PWR-PWB
  • Pull Optical Engine from cabinet. (Note: Slight twisting motion may be required)
  • Remove (3) screws from Lamp Duct
  • Remove (2) screws from Lamp Cartridge - and remove Lamp Cartridge
  • Remove (4) screws from Ballast Plate
  • Remove Bottom Plate from Engine Plate.  Remove (5) screws C - B - A (in that order)
  • Remove Screws “C” under the Bottom Plate.
  • Remove Screws “B” from the rear of the Engine.
  • Remove Screws “A” from the top of the Engine.

  • Be sure not to misplace spring
  • Remove (1) screw from plate (A), (4) screws from fan (B), (2) screws from side lock (C)and (2) grounding strap screws (D)
  • Transfer LENS COVER from service part to defective part.
REASSEMBLY
  • Attach LENS CUSHION BASE to Engine.
  • Follow above steps in reverse order.
  • TIP: Lift and group wiring on left side of engine when installing.
Data:Index Delay Data needs to be transferred from Engine to E2P PWB:
 MENU + 2457 + 0   Select -> COPY LIGHT ENGINE EEPROM TO DM PRESS ENTER.