Magnavox tb100mw9 My converter box will not power up. when you turn it on, the indicator light blinks green normally for a few seconds and then rapidly blinks green 5 times and powers off with indicator light yellow/orange

SOURCE: magnavox tv 42mf439bf7....no picture and

Hi

Thanks for using FixYa. From what you have described it seems the issue is with the power board or the main board and we'll need to check few things. When you open the unit up; take a look at the power board-the board where the power cords/plugs goes into. You might see some filter capacitors a little bulged up in the top-If this is the case-this is your defective part(you can try to replace them-but some soldering equipment is needed). If not, then probably the main board has gone bad. This is the other board-where all the inputs are going into. All this is only recommended if you have electrical expertise and know how to solder/re-solder components. Please note that the TV components consists high voltages even when in off position. Please accept the solution if the issue is resolved or post a comment for further assistance.

Thanks

Rylee

Electro Med Services

• 6694 Answers
• Posted on May 06, 2012

SOURCE: I brought a onn universal remote to turn on my magnavox converter box what code do I use

Hi,
Try the code 0759
Ajin

Jon Malaspinas

• 22 Answers
• Posted on Oct 13, 2012

SOURCE: magnavox 42mf439b/f7, no picture or sound

i have set with same problem in my shop and after troubleshooting i found that the problem is in jack mo dual A91h5mjc. when you plug set in you hear relay and turn on when you push power switch after few sec high voltage supply shuts down making light blink. what they did is separate high and low voltage supply's half one one board half on other to confuse everyone.

SOURCE: repair magnavox tb100mw9 digital tv converter

You can probably find a lightly used replacement for less than the cost to repair.

The Knight

• 76851 Answers
• Posted on May 15, 2015

SOURCE: magnavox 40me313v led tv Symptoms: it turns on but not stay turned on. Turns off after 3-5 seconds of hitting the power button.

Fault to its main 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://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.