Re: bush power supply v07-w04
If you have no supply going to the Tcon board then you need to look for the reason on the mainboard.
If you have no supply going to the Tcon board then you need to look for the reason on the mainboard.
-
Willing to help but I'm no expert. -
Re: bush power supply v07-w04
well took main board out.......and this popped out,the silver can...don't know what it is.. so re-soldered it back in....still same problem......Attached FilesComment
-
-
Re: bush power supply v07-w04
checked diode.DDE on t-con,showing OL,would this affect the voltage on fuseAttached FilesComment
-
-
Re: bush power supply v07-w04
No. You said the white ceramic 3 amp smd fuse is OK but there's no voltage so that means the mainboard is not supplying the voltage needed by the Tcon board.Willing to help but I'm no expert.Comment
-
Re: bush power supply v07-w04
dick barton you are correct..no voltage from main board.......i'll pick one up from flea bay........thanx for ur time....will get back when i replace board.......Comment
-
Re: bush power supply v07-w04
It may be worth checking the mainboard out first before replacing it. Can you post some clear sharp focused pictures of the main board.Willing to help but I'm no expert.Comment
-
Re: bush power supply v07-w04
What voltage do you have on the 3 pins of IC307Willing to help but I'm no expert.Comment
-
Re: bush power supply v07-w04
HI..new replacement board came.[free].got 5 blinks on standby, when turned on...But it then blew the same component as first board..[T314]....Dick Barton the voltages on new board are IC307..3.37v..1.252v..037mv..with tv on............thanxComment
-
-
Re: bush power supply v07-w04
hi......mainboard.........t-con not recieving power from main boardComment
-
Re: bush power supply v07-w04
This component, what keeps blowing
Attached FilesLast edited by digby1951; 08-07-2017, 10:01 AM.Comment
-
-
Re: bush power supply v07-w04
So T314 has blown on your replacement mainboard. What is your tv model number and what is the model number of the mainboard.Willing to help but I'm no expert.Comment
-
Re: bush power supply v07-w04
Have you checked t-con for shortI assume no responsibility for any stupid suggestions I might post.Comment
-
Re: bush power supply v07-w04
project ended,the old boy has taken his tv back........don't know what he intends to do with it....never mind..nearly there....model No lcd32t07hd....main board..e206453..V070-W04...power supply..frp204-2f02..........Comment
-
Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
I have been working on this concept for quite some time now with limited success but recently I found a switching power supply that is setup for the voltage that this soldering station needs to operate at however it also needs part of the secondary circuit from the original switching power because you need several voltage rails
I once tried to get a ZD-915 desoldering station to work on a 18 volt battery power supply but unfortunately things did not go well but I did find a work around but I might try this idea again but going at a little differently more about this another time... -
The sub developed a constant popping every couple seconds from woofer and power LED flickering with nothing but wall AC connected. Connecting an audio cable didn't change anything. It doesn't play but a second or two of audio in between the pops.
Opened it up and discovered the power supply is making a faint clicking or ticking sound.
I measured the amp's output to the woofer and it pulses up to 50mv DC to be driver. The pulses coincide with the power supply ticking/clicking.
I measured the power supply output going to the amp board and it too has this pulsing. Voltage cycles... -
Hello!
i got a damaged Manson NTP-5561 (60V, 1,6A DC output) and and the main issue is that the controler IC for the LCD display has a short. The controler IC PIC18F87K90 is mounted on the back of the back of the LCD. Vss-Vdd = 3 Ohm. The 5V and 3,3V power line was killed as well, but that is not a problem. A new LDO 3,3V and 5V 7805 is already ordered.
Replacing the PIC18F87K90 is necessary but that makes no sense without having the HEX dump of the new controler.
Does anybody have such a power supply and could do a HEX dump of the Flash and EEPROM memory?
...04-12-2025, 10:38 AM
Comment