Toshiba CF30F40 no turn on


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Toshiba CF30F40 no turn on

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CaptainScarlet
New User

Sep 28, 2004, 11:39 PM

Post #1 of 10 (2427 views)
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Toshiba CF30F40 no turn on	Can't Post

Hi,I have a toshiba Tv model CF30F40 and right now is not turn on. I can hear the click sound of the relay and the front led turn on but no sound and video I check the fuses(3) and are ok also the power supply

Did you have an idea of what is the damage part of my tv? Mad

swany
New User

Mar 4, 2005, 12:20 AM

Post #2 of 10 (2309 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

I just repair a Toshiba CF30f40 with the same problem by replacing the regulator. q801 - STR-Z4151. part was about $25.

CaptainScarlet
New User

Mar 4, 2005, 1:21 AM

Post #3 of 10 (2308 views)
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Re: [swany] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Nice! i suspect of this ic

glad i buy it last week

thanks Smile

CaptainScarlet
New User

Mar 16, 2005, 2:43 AM

Post #4 of 10 (2274 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Bad,.doesn't work still with the same problem i can hear the relay,click on off but no sound or video. Crazy

any other piece suspected? Unimpressed

mel
Veteran

Mar 17, 2005, 12:12 AM

Post #5 of 10 (2268 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Check for a bad horizontal output transistor.

swany
New User

Mar 19, 2005, 12:08 AM

Post #6 of 10 (2257 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Also replace C866, C868, and C869 and see if that will help.

CaptainScarlet
New User

Mar 19, 2005, 12:50 AM

Post #7 of 10 (2254 views)
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Re: [swany] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Ok let's see again Angelic

thanks

CaptainScarlet
New User

Mar 25, 2005, 9:42 PM

Post #8 of 10 (2233 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Aha!

From the list you gave me C868,near regulator,is leaked totally and corroded standing in one leg only.

I found it today. i will replace inmediatedly ,thanks Smile

i will tell you late Laugh

CaptainScarlet
New User

Mar 26, 2005, 8:08 PM

Post #9 of 10 (2225 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Bad news again does't work still the same problem.

CaptainScarlet
New User

Jun 6, 2005, 1:45 AM

Post #10 of 10 (2119 views)
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Re: [CaptainScarlet] Toshiba CF30F40 no turn on [In reply to]	Can't Post

Update...

still working on my tv :I found another capacitor leaked and various cracked solderings but still the problem. Mad

Ufff! hope to find the problem.

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