Question about Vivitek Projection Televisions

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T.V will automatically turn on and off during the first 10 minute

When I initically turn on ht t v it wil fturn off and within a ew minutes continue to do it again. Reccently it has gontten worse. The lamp light and th LED lights fliker back and forth.
I;m not sure if the bulb is on the way out. I pulled the bulb out and it seems to be okay. the buld lens is clear..

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With projection TV's the lamp is usually the cause for cycling issues. The lamp power supply (ballast) monitors the current drawn by the lamp and adjusts voltage to keep the current at a specific value, if the ratings fall outside of spec the TV will cycle power and attempt to correct the anomolie. If this happens too many times within a specific time frame the TV can refuse to turn on and will indicate an error code. Don't put the TV through too many retrys or you could damage the ballast too.

Lamps can cost between $200 and $400. The ballast can cost anywhere from $150 to $250 approximately. Usually the manufacturer of the TV will sell you a new bulb, but electronics suppliers often sell them for less. Most lamps are owner replaceable and easy to do, consult your owners manual.

In-home servicers can base their labor charge on the size of the TV. The larger the TV, the higher the labor cost. Do it yourself and save!

Hope this helps.

Posted on Feb 15, 2009

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Here is the proceedure to replace the lamp and reset the lamp hours.
Lamp Replacement Procedure:
1. Press the POWER button to turn off the power.
2. Wait for about 1 minute until the cooling fan stops.
Note:
The lamp cooling fan will continue to operate for about 1
minute after the power is turned off. Do not unplug the AC
Cord from the outlet until the fan has stopped. Avoid
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3. After the cooling fan has stopped, unplug the AC Cord from
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Note:
Please wait more than one hour before replacing the lamp.
[ Forced cooling function ]
If you need to replace the lamp more urgently:
- The Projection display has a forced cooling feature.
After the POWER button is turned OFF, and during the
first minute of the normal cooling fan operation, press
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The cooling fan operates for about 10 minutes. (LAMP
LED will flash 5 times every 5 second and POWER LED
will flash red for 10 minutes.)
4. Remove the Front Cover Unit from the latches.
5. Turn the Knob to the left.
6. Pull the Lamp Cover out.
7. Loosen the Screw on the Lamp. Then, pull the Lamp.
Note:
Because the Lamp may still be hot, use caution when
handling.
8. Install the new Lamp, and tighten the Screw.
9. Install the Lamp Cover, and turn the Knob to the right.
10. Install the Front Cover Unit.
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Be sure to reset the Lamp time to "0" after replacing the new
Lamp.
1. Plug in the AC Cord, and turn on the power by pressing the
POWER button.
2. Press and hold the VOLUME DOWN button on the unit and
the SPLIT key on the remote together for over 5 seconds
in power on condition.
When the reset is finished, the display will indicate that the lamp hrs have been reset to 0 and the LAMP LED goes out.

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