Toshiba Regaza 32AV555D Won't Power Up

[01484]

Hi, I have a 32inch Toshiba Regaza 32AV555D which has decided not to power on anymore. When I turn it on at the mains the red standby light comes on but when I press either the power button, or the power on the remote control, the green power light on the set lights up very dim and very briefly then it goes back to the red standby light. I have opened the tv and can see no puffy transistors. I have replaced the power supply but still the problem persists. Any tips or thoughts would be much appreciated. Many thanks in advance.

[budm]

Re: Toshiba Regaza 32AV555D Won't Power Up

https://www.badcaps.net/forum/showthread.php?t=39740

[babainzu]

Re: Toshiba Regaza 32AV555D Won't Power Up

Hi, i'm a new member so try to be patient to me please (grins). A friend gave me a 32AV555DV without remote control, the tv was abandoned since years due to a big problem: it won't turn on. So i opened it and cheched all fuses, resistors and thiristors in the power supply board, they are good, else, no caps look bad. the leds in the little buttons panel are both green , the power one very low, power button doesn't do anything when pushed as the others buttons. I can't find the power supply board scheme, to check the circuit and the voltage paths, so i tought to ask for a help. This thread looks a bit old and i don't know if anybody will read my post, but i'll be patient and i'll try anyway.
Thanks anyway

[vinceroger69]

Re: Toshiba Regaza 32AV555D Won't Power Up

Hi welcome to the forum we will do our best to help you get the tv working again but we need your help too by providing us with some good clear pictures of the tv one showing all the boards connected together also one showing each board used in the tv also please let us know the mainboard and psu board numbers used in this set.Please note we have not got the tv in front of us so we go off the information/pictures you give to use so the clearer the better thanks.

[babainzu]

Re: Toshiba Regaza 32AV555D Won't Power Up

Hi again, first of all many thanks to vinceroger69 for the fast answer, so, as requested i took several pics of the opened tv, few close up of the boards and one with some results of the checks i made. I hope they will helpto start to find a solution to the problem... Uh, please forgive me for my english...i'm trying to do my best

[babainzu]

Re: Toshiba Regaza 32AV555D Won't Power Up

Are the pictures clear enough? Did them show what you asked for or something is missing ?

[babainzu]

Re: Toshiba Regaza 32AV555D Won't Power Up

Thanks anyway

[budm]

Re: Toshiba Regaza 32AV555D Won't Power Up

OK, so i sounds like yuo do have standby Voltage otherwise you will se any indicator lights.
So when you hit the power switch, do you hear the power relay RL801 on the power supply board click on?
It looks like some one tried to fix the board because the relay cover is missing.
Toshiba 75012573 type 1.
Pictures provided by shopjimmy.

[babainzu]

Re: Toshiba Regaza 32AV555D Won't Power Up

Hi budm,
well, the power switch, as any other button has no effect, this is the situation as i plug the power cable. Regarding the relay it's uncovered just because i tried to manual operate it just to see if something would change, but at least no.
Is neither a stand by mode, beeing the led light green, both the "on" and the "timer" ones, although very dimmed.
Would be helpful the power supply board scheme, but i can't find...

[budm]

Re: Toshiba Regaza 32AV555D Won't Power Up

We need to find out which pin on the connector is the PS-ON pin, the connectors do not have pin labels so it will be difficult. Need to find the service manual for the TV.
Try downloading these manuals:
http://elektrotanya.com/?q=showresul...oria=&kat2=all

One of them is attached.