Re: Magnavox 40mf401b/f7
If you get all the correct voltages of all those pads, then I have no more idea what to check next.
If you get all the correct voltages of all those pads, then I have no more idea what to check next.
-
Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809 -
Re: Magnavox 40mf401b/f7
emerson model lc401em2f red tint and vertical line coming from words top picture 3 inch on top ok with a line in picture helpComment
-
Re: Magnavox 40mf401b/f7
Today a friend donated a Magnavox 40MF401B/F7 to the shop. It has a solid red light at plug in and when you press the power button and it blinks 18 times, and at the 13th blink the back light turns on and at blink 16 it shuts off and continues to blink two more times.
The led turns off and the tv remains on with proper voltages all around but with no back light. I removed the inverter connector while the set was powered on, re-connected it and the back light illuminates for 2 seconds then shuts off while all power voltages on the power board remain good and constant.
I found Q1701 on the power board didn't read right. I put the iron to the cathode and there was a air pocket. I usde flux and re-soldered everything that had a ring or was questionable. Q1701 read correct after the new solder.
*** use caution on these dainty boards***
Put it all back together and still have the same problem.
It's 9:00 pm right now and the fun has to stop folks, more tears next time.
Panel # (SAMSUNG) LTA400HM09
Power Board: BA01P0F0103
Inverter Board: SS1400_08A01 REV 0.3
Main/Logic: BA17P0G0401
Tuner Board: BA17P0F0102Comment
-
Hi is any one can help me on getting the Schematics for Magnavox MDR515H/F7 And Magnavox MDR537H/F7 PDF file thank you I really appreciate it. Just need to change some component on
the main board and the power supply board. I looked all over for the internet and I cannot find the Schematics sheet for both of them. I don't know where else to look I hope someone can help me...03-07-2025, 01:03 PM -
I'm going to assume my beloved Magnavox CRT is toast, but also figured maybe this was a good opportunity to dip my toes into he circuitry waters and maybe learn something new. Also, I don't want to trash it if it's a fairly cheap/easy fix!
My 20-year-old Magnavox has gotten me and my kids through many a gaming console change and worked great up until the other day. Following a long distance move, it sat in our garage for a year and now that I brought it in and turned it on I get no picture; instead, a green light blinks on the front of it; 7 flashes, one long flash, then 3 more... -
Hello,
The unit is stuck in an intermittent on/off cycle. When I plug in the power cord, the green "On" light activates without any command, flashes for a few seconds, then turns off. The red standby light comes on for a few seconds before the cycle repeats. During this time, I cannot turn off the unit manually; it will shut off automatically after about five minutes, and there is no picture. Occasionally, with repeated attempts to power it on, I eventually get a picture and sound, which function properly. When it does work, I measure several voltages, and they appear to be normal.... -
Hello guys. I need a replacement for UTC1316 or KA2214, in my country I can't get either of them, it is for an inexpensive radio recorder, there is no point in searching for it on e-bay or Amazon. Thank you
-
Hello! I am fairly new at repairing electronics. Recently I came across an old Magnavox MDR513H dvd/hdd recorder. It is not powering on. When the unit is plugged in, I get this really annoying beeping sound coming from the power supply.. I have already tried things like unplugging the unit for a few hours, holding the power button for a minute or 2. Nothing seems to make It work.
I found this guy with the same problem on YouTube -https://www.youtube.com/watch?v=iFVm-SJX-S8
-
I checked all over this video's comments but no one really helps him with the issue. except...
Comment