Re: toshiba crt tv model mv20fm3 100% dead
hi rj..im going to just give up..i was hoping it was something simple like a common bulgef failed cap but its not....thanks anyways...ill just toss tv in trash.
Thank you to the guys at HEGE supporting Badcaps [ HEGE ] [ HEGE DEX Chart ]
Announcement
Collapse
No announcement yet.
User Profile
Collapse
-
Re: toshiba crt tv model mv20fm3 100% dead
no..i may try over weekend
Leave a comment:
-
Re: toshiba crt tv model mv20fm3 100% dead
thanks
any of the other secondary voltage larger caps should i look at?...Last edited by ptcriserx3; 10-12-2023, 06:25 PM.
Leave a comment:
-
Re: toshiba crt tv model mv20fm3 100% dead
hi rj ...i did not check voltage at c542...i simply replaced it because its easy enough to do... i have no voltages on the 10pin connector
ill do more tinkering another day
where does the voltage that goes to the standby pin on the 10pin connector come from?Last edited by ptcriserx3; 10-10-2023, 07:42 PM.
Leave a comment:
-
Re: toshiba crt tv model mv20fm3 100% dead
as i suspected the tiny 47uf cap not the issue...i have never had a cap that small fail in a tv...usually 1000uf 470uf 220uf....is there a cap that directly supplys the standby voltage?.Last edited by ptcriserx3; 10-10-2023, 03:25 PM.
Leave a comment:
-
Re: toshiba crt tv 100% dead
thank you
when i get time i will just replace the c542 cap as it is very simple and cheap...im not looking to do anyhting major...
any other cap i should look at or start with c542 and go from there?
like i said i have 0v at standby pin so if this cap is responsible for supplying that voltage im hoping its the problem..although from my bried tinkering experience the caps that typically fail are 1000uf or 220uf or 470uf caps
ive never seen a failed 47uf capLast edited by ptcriserx3; 10-10-2023, 02:00 PM.
Leave a comment:
-
-
Re: toshiba crt tv 100% dead
i found a service manual with voltages so when i get time i will do some probing ..
Leave a comment:
-
-
Re: toshiba crt tv 100% dead
hrre pic of ps board
ii saw a repair on diff crt and it was simply a cap that was bad
from the photos which cap should i test..
if...
Leave a comment:
-
-
toshiba crt tv model mv20fm3 100% dead
hi
ive got an old 2002 toshiba crt tv
its 100% dead
no power on
no standby light
no click sounds
nothing
ps main fuse checks ok
caps not bulged
what would be most common failure to cause this?
-
Sony trinitron crt bowed and side color issues
Hi
Ive got a vintage 2001 sony trinitron flat tube tv
The image is slightly bowed and the left and right sides about 1-2in has fluctuating discoloration that comes and goes if i move or hit tv on sides
See many images attached...
Just windering if this is not fixable or something i can correct without getting too invloved
Im trying to sell the tv
Thanks
-
Laser Diode Driver power supply low amps
hi
i have a laser machine that has a bad power supply
its a constant current ps made by Lumina model LDD-100-8-10
its only a 100watt 10V 8A ps
the ps had a blown fuse and 2 visibly blown transistors
i replaced the fuse and the 2 blown transistors and now the power supply powers on ok but the amp output is way low should be 4a and its only at 1.2A and adjusting the internal ps current pot has no affect on the amps. and adjusting input signal at the 15pin connector for current control has no affect on the amps.
the voltages seem...Last edited by ptcriserx3; 10-30-2020, 11:54 AM.
-
Re: LG 55LW5600 No Video No Sound
55LW5600
seems to be common main board GPU issue
if you use a heat gun to heat up the GPU it may get tv to power on ok
i did it and it worked
obviously this may or may not be a perm fix
it is a main board issue and since the main board for this tv is so costly its not worth replacing
Leave a comment:
No activity results to display
Show More
Leave a comment: