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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
seconds. No customer settings
are changed.
2 User Initialization
Press <INPUT> &
<FORMAT> on Front
Panel at the same time.
All customer Audio &
Video settings are reset to
factory default.
All customer settings will need to
re-configured.
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
re-configured.
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)
<img src="mas_baz.jpg" /><br />There are three LED indicators. LAMP, TIMER, STANDBY/TEMP. Each Led or combination leds indicated problem.<br />
<ul>
<li>LAMP blinking : The picture will automatically appear in about 15 seconds.</li>
<li>TIMER and STANDBY/TEMP blinking : A cooling fan inside the set is not operating normally.</li>
<li>LAMP and STANDBY/TEMP blinking : Lamp cover on the rear of the set is not properly shut.</li>
<li>STANDBY/TEMP blinking : Check if the ventilation hole on the rear of the set is blocked, because if the inner temperature is too high, the power will shut off.</li>
<li>All LED blinking : Lamp may be defective.<br /></li></ul>It takes about 30 seconds for the TV to warm up, so normal brightness may not appear immediately. The TV has a fan to keep the inside lamp from overheating. You'll occasionally hear it working.<br /><br /><br />
1,check the lamp
any questions, feel free to contact me
We supply original projector lamp,bulb,accessories,Lcd panel,Lens,DMD chip,color wheel,motherboard,powersupply,ballast... with high quality and competitive price.
have a nice day!
Jerry,Lampdeng Limited
skype:lampdeng
Turn on the projector
MENU-
OPTION-
LAMP RUNTIME-
Press and hold the ENTER button for 3 seconds.
Turn off the power.
We supply original projector parts: lamp, bulb, Lcd panel, Lens, DMD chip, color wheel,
motherboard, powersupply ... with high quality and competitive price.
any questions, feel free to contact me
have a nice day!
Jerry Lampdeng Limited
Sorry for the late reply, I'm offline upon purchasing my service. You have said that you can hear a low buzzing sound before the unit gone to subsequent shutdown and the lamp blinks green(meaning that the unit try to turn on the lamp for consecutive attempts but not generally mean that the lamp itself is faulty.) and the temp led light come on.
As a matter of fact all the information you have mentioned linked to the symptoms you've encountered right now. A low buzzing sound might be caused by faulty FAN inside the unit that trigger the error code (blinking of the standby/temp led light) and turns off the unit automatically due to thermal protection circuit. However, the technician might be true also that the buzzing sound came from the faulty color wheel. To confirm it, you have to verify where the buzzing sound came from. Color wheel is in front of the lamp assembly. Faulty color wheel can produce the same symptoms you've encountered right now but most of the time, it shows 3 blinking led light at the front panel (Timer, Lamp, standby/Temp).
I would advice you to open the back cover of your unit, fixed the lamp door safety switch with the tape to make it in closed position( if it is on open position the unit will not power up), and then turn on the unit and observe the fans if will spin or not, and check also where the buzzing sound came from before the unit gone to shutdown. I've suspected that the fault came from the fan based on the led light flashes. Please let me know what you will discover after following the steps above to verify where the exact fault came from. Also, let me know the exact status of the led light at the front panel, (Timer, Lamp, standby/Temp ), which of them lit solid/blinking, it will help us to narrow the caused of the symptoms.
Check the bulb again and look at the root of where the main stem comes out inside and be sure you don't see any bubble like appearence around the stem at the bottom there. If you do see this then the bulb is bad. Otherwise try this: Hold volume down on front of unit and pip on remote for about 5 seconds. Message will come on screen that timer has been reset to zero. This sets the lamp timer to 0
Listen carefully to the TV after the relays click. If there is a mechanical ticking or snapping noise after power On, replace the lamp because HV is present (causing the ticking). If there is no ticking sound, replace the ballast. You can confirm this by using the LED blinking pattern to localize the problem. refer to Service Manual or technical guide on the panasonic website for more help diagnosing LED patterns
there are 3 leds on the front that blink the error code. which leds blink gives you the error. if its just the standby/temp red led blinking, it has overheated for some reason. there are a couple other fans you could clean but check your ventilation. many people put too close to the wall or close it up in a cabinet. it needs atleast 4" from the wall and someway to vent out hot air and get cool air in. a different model had the temp sensor cause this issue, it is the silver thing right atop the lamp. you will have to pull the whole back panel possibly, there are two wires that hook to it and two screws holding it to the engine (lamp housing). if you get lamp and temp leds blinking, reseat the lamp door. timer and temp leds is a fan error, all 3 leds is a lamp error (lamp, ballast, colorwheel, dmd)
Your service manual on page 82 steps you through decoding the blinking
1) there are two lights on the front near the reciever of the remote signals (Temp indicator and Lamp Indicator)
2) If the Temp indicator is on then they recommend you contact a service center
3) If the Lamp indicator is on and the power light stays on (no blinking) then you need to replace the lamp. Otherwise it says to contact the service center.
4) Counting blinks with the lamp indicator (1 every 5sec - lamp will not light or is abnormal, 2 every 5sec - lamp voltage is abnormal, 3 every 5sec - lamp temp is too high, 4 every 5sec - other error)
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