Toshiba Regaza 32AV555D Won't Power Up


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Toshiba Regaza 32AV555D Won't Power Up

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cally1910
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Feb 6, 2011, 5:23 PM

Post #1 of 16 (13223 views)
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Toshiba Regaza 32AV555D Won't Power Up	Can't Post

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, which was a problem I had on a previous set. Was thinking of replacing the power supply part SRV2169WW but don't want to go to the expense of this if it could possibly be something else. Any tips or thoughts would be much appreciated. Many thanks in advance, Cally.

cally1910
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Feb 6, 2011, 6:32 PM

Post #2 of 16 (13217 views)
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Re: [cally1910] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Have been looking for the power supply part SRV21699WW and sourced one which is a used part for a Toshiba 37AV554D. The only difference I can see from the photos of this board, compared to the one I have, is that it says it is a type-1 and the other is a type-2. Anyone know if this would still work ok ? Many thanks, Callum.

cally1910
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Feb 8, 2011, 8:11 PM

Post #3 of 16 (13201 views)
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Re: [cally1910] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Right.....replaced the power supply and still the exact same problem...what should I check/change next ? Any ideas ?

jts1957
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Feb 8, 2011, 9:43 PM

Post #4 of 16 (13200 views)
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Re: [cally1910] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Since you are holding a conversation with yourself - why don't you tell us? Angelic

-------------------------
Location: Far, Far Away

cally1910
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Feb 8, 2011, 11:53 PM

Post #5 of 16 (13196 views)
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Re: [jts1957] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Well may as well talk to myself cause no one else seems to give a monkeys :)

topstuff
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Feb 11, 2012, 2:22 PM

Post #6 of 16 (12659 views)
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Re: [cally1910] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Hi, cally 1910, I hope I can be more help than some of the oyher 'helpers' on here, Not all powering up problems are power supply related, I have repaired a few TV sets in the past and some are the usual bad caps, but on occasion I have found that there is an EEPROM chip on the signal board that stops playing ball..now first you have to locate the chip and there are undoubtedly several EEPROMS on there, any way the one you are looking for (if it's there at all) is the 24c32, there will probably be a few other letters either in front or behind, that doesn't matter..when you have located the chip heres what to do, locate pins 7&8 of the IC and solder a wire on each pin,now its up to you to find the right pins and make sure you have the right ones look on the net for data sheets, they are there,,now join the two wires temporaily and turn on the TV, soon as you have turned it on then disconect the two wires and the TV should fire up and will work perfectly, turn the tv off and then back on (not using the two wires) and you should find the tv will turn on normally from there on if not you will need to change the IC...BTW don't attempt any of this unless you feel confident in what your doing or have an idea of achetecture of the pcb boards .. hope that helps.... Smile

Ps pls post a reply to let me know if you were successful..

jts1957
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Feb 12, 2012, 2:34 AM

Post #7 of 16 (12650 views)
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Re: [topstuff] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Hope ALL your posts will be as generic and as TIMELY as this one! Crazy

btw: what's an "oyher"

-------------------------
Location: Far, Far Away

mel
Veteran

Feb 12, 2012, 3:01 AM

Post #8 of 16 (12648 views)
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Re: [cally1910] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Did you ever consider that us "elses" might not have an answer. I can find no info on this model and am not in the habit of giving answers without any idea of what I am talking about. As far as changing the power supply board, it is not unheard of to receive a bad replacement board, especially if you bought it on line from an unknown entity. Topstuff is right that not all power problems are caused by the power supply board but that is as far as I would go regarding the rest of his advice. Short pins together???????????????? Bad advice.

topstuff
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Feb 12, 2012, 11:47 AM

Post #9 of 16 (12640 views)
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Re: [mel] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

to Mel,Thanks for your input, and you quite rightly make an obvious statement, you don't pass comment on something you don't know about, I gave some what I thought was helpful advice.
Any one on this forum who is seeking advice on TV related problems is more than likely to be at a point where they intend, or already have the back off the TV. Now most TVs will have a note on the back saying something like no user serviceable parts inside or danger high voltages present (if you are unsure you should take note of what it says), once you have your fingers inside a TV you are in a perilous area, and you should at least have an idea of whats inside and the dangers that lurk inside, perhaps I made a wrong assumption as to to the members ability, and for that I appologise. However as for the advice itself, it is a known fix in the TV repair world and I for one know it works because I have done it (not a lie totally the truth) if you bother to look up the data sheet for the chip I mention, you will see a reference to the procedure that I described. Here is the salient point I have copied and pasted it here.
WRITE PROTECT (WP): The write protect input, when connected to GND, allows normal write
operations. When WP is connected high to VCC, all write operations to the memory are inhibited.
WP being pin 7 and Vcc pin 8....Now I confess I don't know why it works but I know it does work, (assuming that this is the problem) and doing it will not damage the chip or TV. If it does not work then the problem lies else where.
I would also point out that at this particular point in the circuit the voltages are low, and as for shorting pins, oh dear sounds terribly maverick doesn't it? so I would suggest you take your own advice and not pass comment on something you don't know about.
And could I also mention that from some of the posts i've seen some seem to be unhelpful at best, almost hostile at worst, I would expect more of a helpful attitude than what I have seen so far, and as for the spelling mistake thanks for that, if thats all your input involves you may be better suited to AOL chit rumes or the like of, (did you see what I did there)? (and I appologise for the grammar too, if that offends) Unimpressed

Ron.M
Veteran

Feb 12, 2012, 8:09 PM

Post #10 of 16 (12626 views)
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Re: [topstuff] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

topstuff;.....

I have to straighten you out on some things here....

The OP said in post #1;=>...

Quote

"see no puffy transistors"

That does NOT indicate ANY level of expertise in TV repair/electronic experience...
That indicates , to me , that this OP has about nil when it comes to working on TVs etc...
So for you to presume he's a mental giant & will "short" pins on an IC when he says "puffy transistors" is really expecting a LOT from this OP...
I've been at this over 45 years & I've NEVER seen a "puffy transistor" let alone even heard of any till now..
I've seen chunks blown out of them , split , cracked or burned , but "puffy" , NOPE...
Good luck with him finding EEPROMS , (24c32) , pins 7&8 , solder a wire on each pin , & the best of all;..> look on the net for data sheets <....
Do you really expect him to understand what a "datasheet's" purpose IS ???
With his background , you spoke a foreign language...
Giving this disclaimer at the end of your post is like closing the barn door after the horses ran out;=>...

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BTW don't attempt any of this unless you feel confident in what your doing or have an idea of achetecture of the pcb boards ..

Some of us here do NOT give out "Factory Menu" codes to OPs for a reason...
Some information in an unqualified persons hands can & often does that person OR TV more harm than good...
A piece of friendly advice;...
UNLESS you are confident enough about an OPs level of knowledge in electronics &/or TV repair , don't give info that can be harmful to him OR his TV...

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Now most TVs will have a note on the back saying something like no user serviceable parts inside or danger high voltages present

When was the last time you saw that label deter ANYBODY from going further ???

Quote

I have repaired a few TV sets in the past

That raises some questions...

Quote

perhaps I made a wrong assumption as to to the members ability, and for that I appologise.

Geee...Didn't "puffy transistors" send up ANY red flags ????

Quote

And could I also mention that from some of the posts i've seen some seem to be unhelpful at best, almost hostile at worst,

This isn't "Mr Roberts Neighborhood" !!!!
This IS an open forum & we get all kinds of idiots here...
NOBODY bats a thousand !!!!

Quote

and as for the spelling mistake thanks for that, if thats all your input involves you may be better suited to AOL chit rumes or the like of, (did you see what I did there)? (and I appologise for the grammar too,

Your spelling errors & grammer can indicate your educational level....

Now for the "piece de resistance";=>...

This thread was started on FEB,6th 2011 .....

That's OVER a YEAR AGO !!!!

IF you have ANY smarts , you SHOULD have realized that the OP has either gotten his set fixed &/or junked it out by now...
So , are you trying to impress us ???

Regarding mel;=>...

Quote

I would suggest you take your own advice and not pass comment on something you don't know about.

He DID....

BTW;....
mel is right with what he said & it WASN"T him who commented on your spelling errors...

Have a nice day.... Unimpressed

...

Later...Ron.M.... Cool

..
Veteran & Retired TV technician

(This post was edited by Ron.M on Feb 12, 2012, 8:13 PM)

topstuff
New User

Feb 12, 2012, 9:26 PM

Post #11 of 16 (12617 views)
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Re: [Ron.M] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

yikes i didn'y think people would get so inflamed about it, I was genuinly tryn to elp sum bods ere (is that low enough for u to undstnd),i'm glad you own and run this forum and that you are the moderator and I hope it gives you fulfilment. ansd as for so long ago well maybe he still has a defunkt tv lyn around that needs fxin ja ged it ?. I will not return here to offer any assistance or opinion again I shall go to a site where people are more willing to share ideas and be more understanding your attitude is really underwhelming

Ron.M
Veteran

Feb 12, 2012, 9:43 PM

Post #12 of 16 (12614 views)
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Re: [topstuff] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

topstuff;....

dont lett de dor hit ye on de arse on yer wai out..a-hole...
yer ony tryd 2 elp ONLEE wun boddie ere sins ye cum hear...
i dint by dis plase , butt i du wach it goodt...
i like a-holes lik u cuz u dint shoe no nuttin in yer hed...
anybdy hoo tinks dat he still got dat tv must be nuts...
shows wear u got a vacuum betwean yer ears...
nuff sed...jerk...
u shood be able to reed all dose woids ok...

laitr...ron....m... Cool

...
Veteran & Retired TV technician

topstuff
New User

Feb 12, 2012, 10:44 PM

Post #13 of 16 (12610 views)
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Re: [Ron.M] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

sorry, I did have to return, whats the point in having a help forum when you can't offer help in case something happens that is unforseeable? (all advice is given with an, at-your-own-risk inference, which in somewhat differn't words I put in my post), (do I have to write it at the end of every paragraph or sentence or word), otherwise all you will have is a stack of posted questions and no answers. If no one offers any sort of answer the 'asker' might as well just write it on a piece of paper ('or have a conversation with them self' quote unquote)and then chuck it the bin, and as I said if some one is looking for help with problems on a TV forum ('TV forum' being the key words here) then they must at least be considering taking the back off the TV, otherwise they might as well save themselves time and read the problems and answer page in the manual that came with the TV. Unsure

It really is that simples
so whats your answer? I suspect it goes something like this,(in a west country accent, or like a pirate if your american) 'Ah! what you got there is a case of broken TV, you musn't go messing thar('you is thick and shunt be dablin' ), you needs to be consultin' with one of them that thar TV repair shops, I hopes that's been of helps to ee..if ee has any more problems, please make ee feel free to return to our site and get ee no more useful help or advice.
Do you think you can find argument with that?(Bet you can) Wink

Ron.M
Veteran

Feb 13, 2012, 12:03 AM

Post #14 of 16 (12594 views)
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Re: [topstuff] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

topstuff;....

We ALL know what a help forum is....
You are NOT at a forum that Techs help Techs with problems...
You are at a forum that has a varity of individuals with a varity of electronic/TV repair levels...
Some WELL versed , some don't know a resistor from a Mack Truck...
What you did NOT bother to look at was the DATE the thread started & the last DATE the OP posted...
The excuse you gave;

Quote

ansd as for so long ago well maybe he still has a defunkt tv lyn around that needs fxin ja ged it ?.

IS ludicris & lame because your 1st post zero'd in on his ORIGINAL TV problem & NOT another one laying around that would , you want us to think , have the SAME problem...

It's amazing that most of us here picked up on what the OP said in his 1st post...
You need to learn how to try to determine an OPs experience before you give ANY advice that could be harmful to either he or his TV...
Based on what I saw & what mel saw , shorting IC pins was not a good idea...
IF you are going to be helpful to others whether it be here OR at another forum , you should pay attention to what is happening in the thread....
Such as;..What his problem is , what he did , IF anything to try & fix the set , & what others are giving for advice based on his experience level...

When jts1957 brought to your attention that the thread is OVER a year old & your spelling error(s) , your thin skin showed what your attitude is & you retaliated negatively.....
Instead , a kinder reply would have been in order...

Then I come along & try to enlighten you further , you go ballistic to the point of using mispelled words prolifically & threaten to leave....
Go ahead if you so choose as it doesn't bother me a bit....
Another GOOD Tech will be along soon....

This Forum does an EXCELLENT job helping prople fix their TVs , VCRs , etc , with some of the BEST Techs you will EVER meet....PERIOD !!!!

Sorry , but , I HAD to reply.... Angelic

....

Later...Ron.M... Cool

....
Veteran & Retired TV technician

topstuff
New User

Feb 13, 2012, 10:17 AM

Post #15 of 16 (12583 views)
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Re: [Ron.M] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

Jeez you do go on don't you? good job I didn't say put your fingers in the back and swish them around abit and see what happens, you would have droned on for hours ZZZZZZZZ .. and spelling? whats a tupo here or there? go and moan at your dog instead..nuff said

Ron.M
Veteran

Feb 13, 2012, 6:18 PM

Post #16 of 16 (12572 views)
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Re: [topstuff] Toshiba Regaza 32AV555D Won't Power Up [In reply to]	Can't Post

topstuff;.....

Quote

nuff said

FINALLY !!! About time !!!!

.....Ron.M.... Cool

...
Veteran & Retired TV technician

(This post was edited by Ron.M on Feb 13, 2012, 6:24 PM)

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