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 !

Thursday 21 February 2019

BENQ - PB 8250 DLP PROJECTOR LAMP REPLACEMENT AND LAMP HOUR RESET

BENQ - PB 8250 DLP PROJECTOR LAMP REPLACEMENT AND LAMP HOUR RESET


     When the lamp indicator lights up "Red" or a message appears suggesting it is time to replace the lamp, install a new lamp.  An old lamp may cause a malfunction in the projector  and in some instances the lamp may explode.
If the lamp has been in operation for '1980' hours, install a new lamp for optimum performance.  If the projector is normally run with preset "Economic Mode" selected, it may continue to operate the projector until '2980' hour lamp warning appears.
     The lamp has been in operation for '2980' hours, the power will shut down in 20 hours time.  A new lamp should be fitted to avoid in inconvenience when the projector runs out of lamp time.
     The lamp has been in operation for over'3000' hours.  This message will flash in the center of the screen together with lamp indicator lighting up 'Red' for [40] seconds.  The projector will shut down after 40 seconds.  The lamp 'MUST" be replaced before the projector will operate normally.
LAMP TYPE
Lamp: OSRAM Type Number:  P-VIP 300/ 1.3 E21.8 Max wattage:  300W.
LAMP LABEL AND DESCRIPTIONS.
LABEL:  99J8177B81YWWXXXXXH H Des: 99J8177B81 =>  PART NUMBER Y =>                    YEAR(2004) WW =>               WEEK. XXXXX =>        Serial Number.  Every week need to reset back  00001. H =>                   Plant. H =>                   Plant Code [H=BQY, P=BQM, T=BQS, X=BQX]
LAMP REPLACEMENT
  1. Turn the Power OFF, and disconnect the projector from wall socket.
  2. Turn the projector over.  Loosen the screws and remove the lamp cover.  If the lamp is hot, avoid burns by waiting for 45 minutes until the lamp has cooled.
  3. Loosen the screw that fixes the lamp to the projector.  If screw is not loosened completely, could injure your fingers.  It is strongly recommended to use a magnetic-head screwdriver.
  4. Lift the handle, so it stands up.  Use the handle to slowly pull the lamp out of the projector.
  • Pulling too quickly may cause the lamp to break and scatter broken glass in the projector.
  • Do not place the lamp in locations where water might splash on it, or near inflammable materials.  
  • Do not insert your hands into the projector after the lamp is removed.  If you touch the optical components inside, it might cause color unevenness and distortion of projected images.  
5.  Insert the new lamp.  Make sure the handle is fully locked and tighten the screw firmly.  A loose screw may cause bad connection, which could result in malfunction.   Do not over tighten the screw.  
6.  Re-install the lamp cover and tighten the screw.  Do not turn the Power On with the lamp cover removed.  Whenever the lamp is replaced, reset the total lamp operation timer.  Do not reset if lamp is not replaced as it could cause damage.  
LAMP COUNTER RESET.
  • Press and Hold "EXIT" on the projector for [3] seconds to display the total used lamp time.  
  • Press "Menu" on the projector or on the remote control, to access the lamp hour timer.  An adjustment message will appear.  
  • Press ( > ) or ( < ) to reset lamp hours, and press "EXIT" to leave.
Posted By: FRANK at 03:56
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