I have the Magnavox 37MF321D-37. It seems to be doing the 5 seconds to black but the power light isnt coming on at all. Ive tried the basic replacing the caps and diode on the power supply to no avail. I just wanted to see if you guys had any other input to check something I missed thanks
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Re: Magnavox 37MF321D-37 problem
Pictures of all the boards and one of the overall chassis would help us help you.
Please use manage attachments to include them.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Magnavox 37MF321D-37 problem
Ok... Here are the pics front and back of the power and main boards and the overall chassis. please pardon the crappy pics (from my cell) if you look closely there is a zap mark on the back of the power board. I had it plugged in and bumped it and it shorted at the power socket and blew a fuse. It didn't however change the turning on issue or lack there ofAttached FilesComment
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Re: Magnavox 37MF321D-37 problem
OK, what brand and series is that blue capacitor on the power board, next to the other two that you replaced?Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Magnavox 37MF321D-37 problem
it says phillips 03501 50v 1000uComment
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Re: Magnavox 37MF321D-37 problem
May be low ESR but cannot be sure... if you can find another one that is low ESR could you swap it just to rule it out.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search.Comment
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Re: Magnavox 37MF321D-37 problem
ill have to order some i think that was my last.... gimme a couple daysComment
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Re: Magnavox 37MF321D-37 problem
Most cheap, low temp high ESR caps won't work. I've got 3 of those freakin boards, and putting the wrong caps in can cause you countless other problems! You can pull that board out and test it with it plugged in, but you have to connect loads for each of the 16V, +24v and -24v. I built a test jig to put a load on all 3 supplies, and LED's to show which are putting out voltage. Most problems that can't be fixed with just replacing caps seem to be in the 4A, 24volt line theres a power MOSFET STP45NF3LL that goes bad as well as diode 6074, an 8v 1/2w zener They're not so bad after fixing a few!Comment
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I have an LG Plasma TV 60PM6700 for the past ~12 years.
In the last ~3-4 months I have been having some issues.- Problem: It started with random picture disappearing (sound still worked).
Frequency: Happened about once a week.
Solution: Had to turn off TV wait a few seconds before turning it on again. - Problem: Then it got worse and the TV started to shut down and when turning on the no picture just sound.
Frequency: Happened about once a week.
Solution: Had to turn off TV wait about 10-20 seconds and turn it on again to solve. - Problem: TV shuts down
- Problem: It started with random picture disappearing (sound still worked).
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i have a problem with thinkpad X1 carbon gen 2 "LMQ-1MB 12298-2 48.4LY26.021"
The laptop was turned off because the MOSFET was not transmitting voltage. After checking it turned out that the gate pin on the MOSFET was the problem, because it was producing an inappropriate voltage. and it was discovered that the problem was with the Think engine, so I decided to reprint each pin, and finally the mosfet could work properly. However, there is another problem, even though the voltage has been supplied to the laptop, it still won't turn on, there isn't even an LED indicator. After double... -
PC Specs:- CPU: Ryzen 5 1600
- GPU: GTX 1080 Palit JetStream
- MOBO: ASRock ab350 PRO4
- RAM: Crucial Ballistix Sport 2x8GB 3000MHz (XMP 2.0)
- PSU: XFX 650W (don't remember what model)
- OS SSD: ADATA SP920
- OS: Windows 10 21H2
Problem description:
Hi. I have a problem that has been going on for some time (2-3 years). It's hard to explain what it really is. Sometimes, my computer stops playing music, stops videos (starts buffering on youtube), there is no sound in games and when I minimize the game window and return to the game there is a black screen with window borders... -
Good morning,
I have a problem with Lenovo T580, which after error code 0288 suggests a problem with the display. I checked the display and it works on another laptop. I replaced the display cable with a new one. I programmed another BIOS (downloaded from this forum) and I still have the problem of a dead display - there is an image via HDMI, and the system does not detect the built-in LCD at all. The problem appears to be hardware. What can I check to confirm or disprove this? I found many threads on the Internet related to this problem 0288, but without specific solutions. Please advise.... -
Hello, I have a Dell 15R-5521, with the problem that the Ctrl, Alt, Shitf and Num Lock keys do not work, I tested the keyboard with a keyboard tester and it is functional, I also got another new keyboard and the computer has the same problem with the same keys. Check continuity between the ZIF connector from the keyboard to the KBC and all pins are correct. I cleaned the ZIF connector and the KBC and I still have the same problem. I reinstalled windows just in case, and it didn't work. I updated the BIOS to the latest version A16 and there were no changes.
As additional information,...
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