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Toshiba 42" Rear Projection TV Standby Problem. 42PW33
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Thu Jul 19, 2007 12:55 am    Post subject: Toshiba 42" Rear Projection TV Standby Problem. 42PW33 Reply with quote

I aquired another Projection TV made by Toshiba. Unfortunately, it's had the serial sticker at the rear removed for some reason.

But after a few hours searching, I strongly believe it to be a 42PW33
(http://www.home-entertainment.toshiba.co.uk/consumer/products.nsf/files/42PW33/$file/42pw33.jpg?openelement)

Anyway, I know it has a convergance problem, that I will replace the IC's afterwards. But the main problem at the minute with this one is it's not turning on. It's stuck in standby I guess.

It has 2 LED's on the front. 1 red, 1 green. Red is permanently on. When trying to exit standby to use, the TV makes the 'hiss' noise for a split second then the green light starts to flash. This light is next to what looks like a 'Sleep Timer' function icon. Any idea's? Or perhaps someone knows where I might find a service manual for it?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Thu Jul 19, 2007 4:07 am    Post subject: Reply with quote

http://forum.eserviceinfo.com/viewtopic.php?t=27444
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Thu Jul 19, 2007 11:42 am    Post subject: Reply with quote

Hi Minnie... Your the most helpful person on this section! Wink

My Samsung chips arrived this morning, gonna be soldering those in a mo.

This Toshiba one though, I obviously did the search before posting and did find that post. Although that is about the convergence, I cant seem to get the machine on. Is that doing it to 'safe guard' anything blowing?

IE - I need to change the chips in order to get it out of the standby problem?
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri Jul 20, 2007 12:12 am    Post subject: Reply with quote

Hell yes, it's common for the IC's to make the set go into shut down because shorted IC's will trip the x-ray protect. Change the ic's, check the pico fuses, and check the resistors. Same as the samsung.
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Fri Jul 20, 2007 1:58 pm    Post subject: Reply with quote

After loads of searching and thumbing through forum after forum, site after site.

I've found (I think) the name of the IC's I need for this model.

They are much smaller than the repvious ones, but please check my findings please.

These IC's are names SLA4501M's and have the number 3517 written on the side with JAPAN in large letters. I'm sure I've found them as they have 3 large heatsinks attached to them.

If I'm write, I've tried a google search to find a place to get these from and it was very vague in it's search.

Any ideas Minnie?
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Fri Jul 20, 2007 2:00 pm    Post subject: Reply with quote

Sorry (Typo's galore!) LOL
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Fri Jul 20, 2007 11:02 pm    Post subject: Reply with quote

Working on it. Not a US model.
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Sat Jul 28, 2007 5:45 pm    Post subject: Reply with quote

http://www.comparestoreprices.co.uk/large-screen-tvs/toshiba-42pw33.asp

All details for this TV are above.
I'm wondering if there is a US equivilent that maybe the same chips with a different name?

I have also posted an image of what I think are the IC Chips...

Inside the rear
http://i9.photobucket.com/albums/a88/DejaVuAtGesh/IMAG0782.jpg

From above the 3 chips (Bit blurry, crap camera)
http://i9.photobucket.com/albums/a88/DejaVuAtGesh/IMAG0874.jpg

As said, markings are SLA4501M and have 9 pins each.
Am hoping I'm looking in the wrong plaace and they are actually STK's elsewhere that need replacing.
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minnie



Joined: 18 Aug 2005
Posts: 2877
Location: Hell

PostPosted: Sat Jul 28, 2007 6:37 pm    Post subject: Reply with quote

I can't find a service manual on this. Evil or Very Mad
Toshiba usually uses 392-110's.
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DejaVu



Joined: 02 Jul 2007
Posts: 93

PostPosted: Sat Jul 28, 2007 11:12 pm    Post subject: Reply with quote

Gonna get further in to find 'em! Hopefully the little sods are in there some place! Smile
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