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!

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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 !

Monday 25 February 2019

BENQ - PB 8250 DLP PROJECTOR LAMP REPLACEMENT, RESET

BENQ - PB 8250 DLP PROJECTOR LAMP REPLACEMENT, RESET


The lamp used this projector:
Osram.  Type Number [P-VIP 300/1.3 E21.8].  Maximum Wattage - 300W
Serial Number [SPEC LBL PRINTING]. Spec: number details:  For example, if Spec number printed is: (99J8177B81YWWXXXXXH H):
99J8177B81 => is part number.
Y => Year [2004]
WW => Week.
XXXXX => Serial Number. Every week need to reset back 00001.
H H => Plant code.  H=BQY, P=BQM, T=BQS, X=BQX
USE AND REPLACEMENT OF LAMP
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 malfunction in the projector and in some instances it may explode.  The lamp has been in operation for 1980 hours.  Install a new lamp for optimal performance.  If the projector is normally run with preset "economic' mode selected by its menu, the projector can continue to operate until 2890 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 the inconvenience when the projector runs out of lamp time.  The lamp has been in operation for over 3000 hours.  The message will flash in the center of the screen together with the lamp indicator lighting up red for 40 seconds.  The projector will shut down after 40 seconds.  The lamp MUST be replace before the projector will operate normally.
 Lamp Replacement.
  1. Turn the power OFF and disconnect the projector from the wall socket.
  2. Turn the projector cover.  Then 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 the screw is not loosened completely , you could injure your fingers .  so it is strongly recommended that to use a magnetic screw driver. 
  4. Lift the handle, so that 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, children can reach it, or near inflammable materials.Do not insert your hand in to the projector after lamp removed.  If you touch the optical components inside, it could cause color unevenness and distortion of projected images.
  5. Insert the new lamp.  Make sure that the handle is fully locked and tighten the screw firmly. A loose screw may cause a 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. 
  7. To Reset the Lamp Counter [1] Press and Hold Exit on the projector three seconds to display the total used lamp time.  [2]  Press Menu button on the projector or on the remote control to access the lamp hour timer. An adjustment message will appear.  [3]  Press Left or Right button to reset lamp hours and press EXIT to leave.
Posted By: FRANK at 02:28
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