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 19 March 2019

MITSUBISHI LASERVUE - - V-40 CHASSIS L65-A90 - DISASSEMBLE PROCEDURE

LASERVUE - MITSUBISHI - V-40 CHASSIS L65-A90 - DISASSEMBLE PROCEDURE {Click on Pictures to Zoom In}


DISASSEMBLE PROCEDURE
Product Transpiration
This receiver is provided with “Transportation Screws” to be used to secure the screen assembly during transportation. Prior to moving this set, remove AC power and install the 4 transportation screws as shown below.
Before Moving the TV Receiver install the Transportation Screws
  • Remove AC power.
  • Raise Screw Cover to access screw opening.
  • Use 5mm allen wrench to install Transportation Screw.
  • Repeat at the 4 locations (a) shown.
After Moving the TV Receiver, remove the Transportation Screws
  • Do NOT apply AC power.
  • Use 5mm allen wrench to remove Transportation Screw.
  • Slide Screw Cover back down over the opening.
  • Repeat at the 4 locations (a) shown above.
NOTE: Transportation Screws are the property of the customer. Retain the screws with the set for future use.  Suggestion: Place them in a plastic bag and attach it to the back of the set.
Removable Pedestal:  This receiver comes equipped with a Pedestal that must be removed to install either the optional wall mount kit, model LWM-65, or the optional stand, model LFB-65. The TV receiver will not properly stand upright on its own without the Pedestal.  When transporting, disassembling, and/or repackaging the receiver, the Pedestal must be re-installed using the eighteen screws in the locations shown below.
Disassembly beyond what is shown here is not recommended. For repairs requiring further disassembly, contact MDEA Mitsubishi Service Centre.
The Screen Assembly is unique to this product. As such, it is not considered to be a field serviceable item.
  • For repairs related to any part of the screen or screen assembly, contact the Service Centre.
  • Do not allow the rear of the screen to come into contact with any other surface including cleaning cloths or fingers. Remove dust or other debris by blowing with a dry air source.
  • For optional wall mount or stand mount installations, prior to disassembly see Removable Pedestal.
UPPER CABINET BACK REMOVAL
  1. Remove the six screws (a).
  2. Remove the two machine screws (b).
  3. Remove the Upper Cabinet Back.
  4. To re-install, reverse steps 1~2.
ELECTRICAL CHASSIS REMOVAL
  1. Disconnect all cables from the Electrical Chassis.
  2. Remove five screws (a).
  3. Remove two screws (b).
  4. Carefully remove the Electrical Chassis from the Cabinet.
  5. To re-install, reverse steps 1~3.
POWER SUPPLY SHIELD REMOVAL
  1. Remove five screws (a)
  2. Lift the Power Supply Shield from the Chassis.
  3. Reverse the removal procedure for re-installation.
POWER BOARD REMOVAL
  1. Remove seven screws (a)
  2. Disconnect all cables from the PWB-POWER.
  3. Release Clips (b)
  4. Lift the PWB-POWER from the Chassis.
  5. Reverse the removal procedure to install a new PWB-POWER.
3D-POWER BOARD REMOVAL
  1. Remove two screws (c) from RS-232 connector.
  2. Remove one screw (d) from 3D Emitter Jack.
  3. Remove two screws (e) from PWB-3D.
  4. Disconnect the cable from the PWB-3D.
  5. Lift the PWB-3D from the Chassis.
  6. Reverse the removal procedure to install a new PWB-3D
CHASSIS COVER REMOVAL
  1. Remove Power Supply Shield.
  2. Remove Terminal Escutcheon by removing two screws (a).
  3. Remove two screws (b) from the RS-232 connector on Terminal Panel.
  4. Remove four screws (c) from Terminal Panel.
  5. Remove five screws (d) from around the edge of the Chassis Cover.
  6. Disconnect the cables from the PWBPOWER and PWB-3D.
  7. Lift the Chassis Cover from the Chassis.
  8. Reverse the removal procedure to re-install the Chassis Cover.
MAIN PWB REMOVAL
  1. Remove two antenna nuts (a) from the Terminal Panel.
  2. Remove five screws (b) from the Terminal Panel.
  3. Remove four machine screws (c) from the Terminal Panel.
  4. Remove nine screws (d) from the PWB-MAIN.
  5. Disconnect the cables from the PWB-MAIN.
  6. Lift the PWB-MAIN from the Chassis.
MAIN PWB INSTALLATION
Reverse the removal procedure to install a new PWB-MAIN.  After fully re-assembling the set, perform the following data transfer procedures:
  • Press the <MENU> button on the remote control. The Customer Menu will appear.
  • Press the <2-4-5-7> buttons. The Service Menu will appear.
  • Press the <0> button. The Data Selection Menu will appear.
  • Use the <▲▼> buttons to select “RESTORE ALIGNMENT AND WHITE BALANCE SETTINGS FROM BACKUP” and press <ENTER>. You will automatically exit the Data Selection Menu.
  • Press the <0> button. The Data Selection Menu will appear again..
  • Use the <▲▼> buttons to select “RESTORE KEYSTONE GEOMETRY FROM BACKUP” and press <ENTER>. You will automatically exit the Data Selection Menu.
  • Press <EXIT> to quit.
Posted By: FRANK at 02:48
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