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Have a Mitsubishi TV, model LT-46144, with a power supply problem.Blue LED on front flashes but will not power up. Is there some diagnostic code going on here?

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The Knight

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  • Mitsubishi Master
  • 76,582 Answers

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electronicshelponline.blogspot.com/
https://homenol.blogspot.com/
https://elektrotricks.blogspot.com/

Posted on Feb 26, 2021

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5 Related Answers

Anonymous

  • 104 Answers

SOURCE: Mitsubishi Mod # WS-55315

On this model the timer led blinks when the tv is off if you have the timer set to turn it on. You can get the manual here.

Posted on Mar 13, 2008

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welcomejee

Shahid Electronics

  • 10594 Answers

SOURCE: KDS-60A3000 new bulb gets 6 flashes of red led

Please put back lamp (bulb) cover properly and check as lamp cover is open/ not fixed or improper fix is also cause of LED flashing.

Posted on Jan 08, 2009

matlock_mich

  • 77 Answers

SOURCE: Kenmore model 417-44052400 front load washer error code E04

Take the front lower panel off 2 or 3 screws you will see the pump.You will see a black "baffle" atatched to the pump.squeeze it feel a sock?Take the boot loose and clear.Only other thing would be the motor control board back let hand corner replaced many of these when tubs dont move.I hope this helped.

Posted on Nov 17, 2009

Anonymous

  • 1 Answer

SOURCE: Philips 42PF7220A/37 42'' TV (LED flashes red 7 times)

Five buck solution; If you have any tek skills at all and are feeling adventurous; UNPLUG THE POWER, remove the back panel; You will be faced with the mainboard. In the lower right quadrant you will see two small capacitors, like tiny yellowish coke cans. If these are bulging, there lies your problem. These must be replaced. If you have no soldering skills, take only the mainboard to a fixit shop and have them solder in the two capacitors easily found on line. No guarantee's but worth a try

Posted on Dec 14, 2009

jdvillanueva

Jdvillanueva

  • 2098 Answers

SOURCE: I have a Mitsubishi LT

Hi,

The error code is denoting a two digit code, example, if the error code is "27" the led light will flashes two times pause and then flashes 7 times, the error code is repeated a total of 5 times. Please double check the error code to determine where the fault came from.

Jdvillanueva

Posted on Aug 31, 2011

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1 Answer

LCD TV diplays blue screen on all inputs


Hi,
Nothing on all inputs would suggest the Main AV board not processing signals, if all other functions such as volume, menu access, on and off operate normally the power supply board is probably functioning OK. Have a look at shop jimmy for an idea on price and availability for Mitsubishi LT-46144 Boards and spare parts:

TV Parts Universal TV Stands DLP Chips ShopJimmy

Dec 11, 2015 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

Mitsubishi LT-46149 power lamp just flashes and tv will not turn on. Tried the reset and unplugged overnight, also I do wait for the "boot up" still just have a flashing power lamp. Any ideas?


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

Nov 24, 2014 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

Yellow blinking light . what does it mean


A blinking yellow for this model indicates the TV is too hot, unplug & allow 30-45 min to cool before re-plugging .
OR: lamp not installed or lamp door not closed. there is a lamp door switch that may not be closing, simulating door not closed


LED Indications

The front panel Status LED provides an indication of

the set's operation and the possible cause of a malfunction.

If an abnormal condition is indicated, perform the

Self Diagnostics procedure.

Self Diagnostics

To activate, press the front panel <ACTIVITY> &<CH

??> buttons at the same time and hold for 5 seconds.

The STATUS LED will then flash denoting a two digit

code.

• The number of flashes indicates the value of the

MSD (tens digit) of the Error Code.

• The flashing then pauses for approximately 1/2

second.

• The LED then flashes indicating the value of the

(ones digit) of the Error Code.

• The Error Code is repeated a total of 5 times.

Example: If the Error Code is "23", the LED

will flash two times, pause, and then flash three

times.

Table 2-2: LED Indications

Error Codes, descriiptions and the most likely cause of

the error are listed in Table 2-3.

Note: The TV must be in "Shut Down." The LED

will probably be indicating an abnormal

condition. If the TV is switched Off, AC is

removed, or a System Reset is performed, the

code automatically resets to "12" No Error.

See the Error Code Log to retrieve a history of

errors.

Note: Use the front panel buttons, not the remote

control.

Note: If there is no response, the front panel may be

locked by a V-Chip setting. To unlock, press

and hold <ACTIVITY> on the front panel for

8 seconds.

LED Indication Condition

Off Off (standby)

Green Power On

Slow Blink Green Power Off with Timer Set

Fast Blink Green (80 seconds) > Off Power Off (Cooling fan still working, 80 sec)

LED Indication Condition

Red Lamp Failure

Yellow TV Too Hot

Slow Blink Red TV May Require Service

Slow Blink Yellow Lamp Door Open or No Lamp Installed

NORMAL INDICATIONS
ABNORMAL INDICATIONS (For details perform Self Diagnostics Procedure.)

Jul 07, 2014 | Mitsubishi WD 65837 65 in. HDTV

1 Answer

I have a mitsubishi WD 6573TV. Sound Issue. Last night I came home and have picture but no sound. I completely powered it down and let it set overnight. Came in today had sound but could not control


Try a "REBOOT"
Reset, Initialization &
Option Menu
Front Panel Reset & Initialization
Many customer generated symptoms, intermittent symptoms
or symptoms that cannot be duplicated can be resolved
by performing resets or initialization from the front
panel. To avoid making nuisance service calls that may
not be covered under the warranty, ask the customer to
perform the following functions before going to their
home.
The most common are:
• System Reset (Re-boot)
• A/V Reset (Resets Customer Audio/Video
Settings)
• Initialization (Resets all customer options,
settings and menu items)
Use the Front Panel Guide as a reference to quickly
perform the desired function. Note: Button location may
differ by model.
The Reset - Initialization Guide details all resets and initialization
functions.
Front Panel Guide
FRONT PANEL
1) SYSTEM RESET1 - Reboots Set
(Same as Cycling AC Power)
Power LED will flash for about
1 minute.
2) A/V RESET2 <FORMAT+GUIDE>
Resets all Customer Audio/Video Settings
FORMAT GUIDE INPUT
ENTER CANCEL
SYSTEM
RESET
MENU
VOLUME
ADJUST
CH
ADJUST
3) INITIAL2 <FORMAT+INPUT>
Resets all Customer Menu and
A/V Settings
LED DIAGNOSTICS3 <INPUT+MENU>
In case of failure, a 2 digit error code will
be indicated by the POWER/TIMER LED.
1 Perform while the set is either On or Off. (See section on LED Diagnostics)
2 Perform while the set is On.
3 Perform while the set is Off.

Apr 21, 2014 | Mitsubishi WD-65731 65" HDTV

1 Answer

SOUND GOES IN AND OUT.CAN'T TURN IT DOWN WHEN ON


Try a "REBOOT"

Reset, Initialization &
Option Menu
Front Panel Reset & Initialization
Many customer generated symptoms, intermittent symptoms
or symptoms that cannot be duplicated can be resolved
by performing resets or initialization from the front
panel. To avoid making nuisance service calls that may
not be covered under the warranty, ask the customer to
perform the following functions before going to their
home.
The most common are:
• System Reset (Re-boot)
• A/V Reset (Resets Customer Audio/Video
Settings)
• Initialization (Resets all customer options,
settings and menu items)
Use the Front Panel Guide as a reference to quickly
perform the desired function. Note: Button location may
differ by model.
The Reset - Initialization Guide details all resets and initialization
functions.
Front Panel Guide
FRONT PANEL
1) SYSTEM RESET1 - Reboots Set
(Same as Cycling AC Power)
Power LED will flash for about
1 minute.
2) A/V RESET2 <FORMAT+GUIDE>
Resets all Customer Audio/Video Settings
FORMAT GUIDE INPUT
ENTER CANCEL
SYSTEM
RESET
MENU
VOLUME
ADJUST
CH
ADJUST
3) INITIAL2 <FORMAT+INPUT>
Resets all Customer Menu and
A/V Settings
LED DIAGNOSTICS3 <INPUT+MENU>
In case of failure, a 2 digit error code will
be indicated by the POWER/TIMER LED.
1 Perform while the set is either On or Off. (See section on LED Diagnostics)
2 Perform while the set is On.
3 Perform while the set is Off.

Apr 20, 2014 | Mitsubishi WD-73732 73" Television

1 Answer

Misubishi LT-46149 solid red light


Your TV is on stand by., you possibly have power supply board problem or main board.. you have to call a service

Jan 14, 2013 | Mitsubishi LT-46144 46 in. LCD HDTV

1 Answer

All I get is a blue welcome screen on my Mitsu WD-65C9 DLP TV. After several seconds of blue screen, it always just shuts down. I downloaded the Mitsubishi software upgrade, but it did NOT solve...


Hi Mike,

May I know if the LED light at the front panel has a pattern of flashes or flashing continuously in green color.

Please check if you can access the "Self diagnostic screen" by following the steps below.
- To activate, press the front panel "Activity" and "Channel down" buttons at the same time and hold for 5 secs. The Status led will then flash a two digit code. Example, if the error code is "23" the led light flashes 2 times(blink, blink) pause and then flash 3 times(blink, blink, blink). Let me know the error code, it will help to diagnose where the fault came from.
Note : the TV must be in shutdown not switched off, or AC power cord is removed because the code will reset to "12" means no error. Use the front panel buttons not on the remote control. If you can't access the self diagnostic, press and hold the "Activity" button on the front panel for 5 secs before entering the "self diagnostic" code.


Kind Regards,

Mjsazon

Nov 25, 2011 | Mitsubishi WD-65C9 65" DLP HDTV

1 Answer

When I turn on the tv all i get is the welcome screen, and it will not go any futher,there is green light flashing in front of the tv. and it will not turn off with the remote, i have to unplug it.


Hi Andre,

May I know if the LED light at the front panel has a pattern of flashes or flashing continuously in green color.

Please check if you can access the "Self diagnostic screen" by following the steps below.
- To activate, press the front panel "Activity" and "Channel down" buttons at the same time and hold for 5 secs. The Status led will then flash a two digit code. Example, if the error code is "23" the led light flashes 2 times(blink, blink) pause and then flash 3 times(blink, blink, blink). Let me know the error code to narrow down, it will help to diagnose where the fault came from.
Note : the TV must be in shutdown not switched off, or AC power cord is removed because the code will reset to "12" means no error. Use the front panel buttons not on the remote control. If you can't access the self diagnostic, press and hold the "Activity" button on the front panel for 5 secs before entering the "self diagnostic" code.
Regards,
Jdvillanueva

Nov 24, 2011 | Mitsubishi WD-60737 TV

2 Answers

Anyone have the actual lcd panel part/model number and maker for the Mitsubishi LT-46144


you can only get this part if you are a mitsubishi authorized servicer. not to mention, I think its more than the tv costs to buy

Mar 23, 2010 | Mitsubishi LT-46144 46 in. LCD HDTV

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