Re: Emerson LC401EM2F
So what happen?
-
Re: Emerson LC401EM2F
If that is the case, there are two set of bridge rectifiers,
D1607~1610
D1201~D1204.
Just lift one leg of each Diode.
Those are fed by the L1602.Leave a comment:
-
Re: Emerson LC401EM2F
"I just took old lamp and cut plug off one end of wire to the fuse holder" I just re-read yor post.
OK, so you will have TWO wires that go to the lamp. One end of the wire will go to one of the fuse holder clip, another end of the wire will go to the other fuse holder clip.
We are using the lamp in place of the fuse.
Pictures of the setup?Leave a comment:
-
Re: Emerson LC401EM2F
D1607 to d1610 one reading I think they were like 660 I did not pull to measLeave a comment:
-
Re: Emerson LC401EM2F
Ok all three out and still no change on lamp. Aslong as I hooked it up right. I just took old lamp and cut plug off one end of wire to the fuse holderLeave a comment:
-
Re: Emerson LC401EM2F
OK, the lamp stays bright so you still have shorted circuits.
We still have 3 more MOSFET's we need to remove.
Lets take out Q1701, Q1702 on page 2 of the diagram for the 24V power supply and see if the lamp will stay on bright.
If it does, then remove Q1602 for the PFC circuits.Leave a comment:
-
-
Re: Emerson LC401EM2F
I bought that panel (the switch is in series with the socket), got from HD long time ago.Leave a comment:
-
Re: Emerson LC401EM2F
bud with that lamp tester you have, did you have to make the box with the lamp holder and on/off switch, or did you buy it like that?Leave a comment:
-
Re: Emerson LC401EM2F
OK, we need to start isolate the circuits to find out which section is shorted out, let try removing the Q601 (2SK3798) on page 3. You should use the lamp (100~200w) in place of the fuse so you will not keep blowing fuses and cause more damages.Leave a comment:
-
Re: Emerson LC401EM2F
i must be on my own now no on saying anything last 10 post all mineLeave a comment:
-
Re: Emerson LC401EM2F
I was checking things and found I have short on pins of T1201 its like pins 5, 6, 7, 9, 10 are all connected together and pins 1, 2, 3, 4 all connected together. I have not removed yet to retest.
IC1201 (MIP2F30MSSCF DIP7-A1) same thing pins 5, 7, 8 all connected? pins 1 to 4 all connected? short on c1208?
have not removed yet to retest. found datasheet but not in english.
how would i check the transformer and no i don't have a ring testerLast edited by Mark369; 12-21-2012, 11:02 PM.Leave a comment:
-
Hello, I disassembled this dead camera, and found this WTF… Two fuses soldered one above the other !
I was pretty sure nobody touched it before, but that can't be from factory. There is flux, and capacitor is probably missing.
The other weird thing : the fuses are « G » fuse : (0.75A – 8V), seems very low. The original fuse should be « O » : (32V 2,5A).
There is « O » mark beside. All fuses have the same mark letter on main board. So, I can deduce it's a « O » fuse.
And this correspond to the issus I saw : when I plug the battery, I measure the voltage dropping... -
Hi I wonder if anyone might be able to steer me in the right direction. I have this Samsung UE46ES8000 TV and it went bang during use. The main fuse on the PSU board is open. I've checked every diode/mosfet/transistor I can see and nothing appears to be short to cause the fuse to go. The DC output of the bridge rectifier is not short either. I've seen online that some of these models are known for having their PFC mosfet or other mosfets shorting and blowing the fuse but i'm not seeing that here. If anyone aware of these models having any issues to cause this? I'm reluctant to just replace the... -
Hi guys,
I'm inexperienced with electronics repairs, I've done a little bit of soldering caps and whatnot, but i have a blown fuse on this mimaki printer I got which I have bought a replacement for.
How do I remove this type of fuse (see picture)...it kinda looks like it would pull out of that bracket but it didn't come at first pull and I didn't want to brute force it incase it's soldered on there like most of the rest of the components.
Anybody know how to remove this type of fuse?
(The fuse is toward the bottom of the image labeled F2)... -
I found a project in the electronics trash yesterday. A nice Argon SA1 audio amp with some electrical issue. Took it apart and saw that the 4A250V fuse was blown so started lifting components to find the short. Eventually got to two MOSFETs (model FTA14N50C) that are shorted and when i took them out the short was gone.
Now i didn't have any replacements of the same model of course but i found a couple with pretty similar spec i thought (K10A60D & K12A50D) and put them in. Also replaced the blown fuse with a 3.5A250V one. Checked another time for short circuit and plugged it in.... -
Hi,
I recently picked up a used Matsui 175S microwave that was powering up (starts, turntable rotates) but not heating. From looking online the most likely culprit was the fuse, but unfortunately in this one the fuse had heated up and fused with the (badly designed) fuse holder and couldn't be removed. I guess this might indicate further issues beyond the fuse itself but at this stage I just want to replace the fuse and see how I go from there.
Anyway since I couldn't get out the fuse itself the easiest fix was to replace the fuse holder assembly that runs between the...
Leave a comment: