Question about Gateway DLP56TV 56" Rear Projection Television

2 Answers

Turn on TV on power up the LED's in front flicker bewen amber red and green and does not turn on, it pauses and tries again. It takes some times 10 to 30 minutes to turn on. But other times it turn on OK? What causes this problem>

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  • Justino Garavito
    Justino Garavito Sep 02, 2008

    Thank you for your help, I tried and some times it works....



    But there is a problem with the power up.



  • ktranzow Nov 10, 2008

    I have the same problem. Lights flicker but never powers up. It use to work by unplugging and waiting for a few minutes. But now that doesn't work. Any suggestions?

  • mssamoa9 Mar 22, 2009

    power and lamp light keep flickering back and forth. tv will not power up. we tried unplugging power and that wont work either.

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  • 15 Answers

Your lamp life is most likely at the end of its life - you need a new one, make sure you get the right Osram one (I think they are as little as $120 or as much as $200). Replacement is fairly straightforward (15 minutes).

There is a compartment in the back with two screws.
Unscrew lamp enclosure inside
Pull out enclosure
Unscrew wires from bulb
Pull wire clamps off of each side of bulb with pliers
Remove lamp and replace with new one (note orientation and do not handle the front of the bulb)

Posted on May 01, 2009

  • Richard Bozzell May 01, 2009

    BTW - to confirm that this is the bulb, count the number of green flashes to amber ones:



    Green x 2, Amber x 1, Lamp LED off - Cooling Fan failure

    Green x 3, Amber x 2, Lamp LED flash - Lamp Failure

    Green x 5, Amber x 2, Lamp LED off - Hardware failure (more serious analysis required).

×

Unplug it from wall, wait 1 minute, then re-connect and power up.

Posted on Aug 27, 2008

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electro-medical.blogspot.com/
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In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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Try a reset. Start by unplugging for 1 minute, then plug back in & if still won't restart try the following. If none of the following work, you will need a technician.

Initializing the TV in many cases can remedy a problem.
In the 2006 product line Initialization is now a user function.
Pressing the front panel "INPUT' and "FORMAT"
buttons at the same time activates Initialization. When
complete all user settings will have to be set again. The
table in Figure 4-3 list the User Initialization procedures.
Note: Pressing INPUT and FORMAT is the same as
the Initialization in the Option Menu (MENU-2-4-7-0)
Order Name Procedure Results Notes
1 System Reset Press <System Reset>
on Front Panel
Hardware & TV operating
software reset.
POWER/Timer LED flashes for 60
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2 User Initialization
Press <INPUT> &
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Panel at the same time.
All customer Audio &
Video settings are reset to
factory default.
All customer settings will need to
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3 Reset System
Defaults
From the remote, press
<MENU> <1-2-3>
<ENTER>
All customer settings
except V-Chip are reset to
factory default.
Netcommand, Channel Memory,
etc., will need to be re-configured.
SERVICER
PROCEDURE 4 Initialization
From the remote, press
<MENU> <2-4-7-0>*
select "INITIAL" press
<ENTER>
All customer settings are
reset to factory default.
All customer settings will need to
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MITSUBISHI RESET / INITIALIZATION CHART
CUSTOMER
PROCEDURES
Figure 4-3
Figure 4-4
LED Indications
The front panel LEDs, refer to Figure 4-4, also assist in
determining the cause of a symptom. Figure 4-5 illustrates
normal LED operation. Figure 4-6 shows the
LEDs response when a problem is detected and indicates
the possible cause.
Power/Timer
Indicator
Status
Indicator
Lamp
Indicator Condition
Off Off Off Off (standby)
Blinking green
fast Off Off Initialization (10 - 65 seconds)
Off Off Blinking
green fast Lamp runs for 1 min after PTV off
Green Off Off Power On
Blinking green Off Off Power On Timer is set
NORMAL LED INDICATIONS
Power LED Status LED Lamp LED Condition
High Temperature - check ventilation air flow.
(Temperature sensor is disconnected.)
Off Off Blinking yellow Lamp cover is open.
Lamp failure (Lamp fails to turn on)
Off Off Red (Lamp turns off after lighting)
Lamp is broken
Off Blinking Red Off Fan Stop
Off Red. Off Circuit failure. (Run Error Code Check)

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http://www.youtube.com/watch?v=oDGjWOabJ2E&feature=related

http://www.youtube.com/watch?v=YCSNWi3UHf4&NR=1&feature=fvwp

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