Zenith TV-SF2505TR(No start up)


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Zenith TV-SF2505TR(No start up)

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Roger
New User

Jan 8, 2003, 10:45 AM

Post #1 of 3 (674 views)
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Zenith TV-SF2505TR(No start up)	Can't Post

Problem: Will try to start up and then shutdown.

Have replaced the following:

Yoke

Horizontal output transistor

C3412, R3463. With collector of Horizontal output connected voltage on collector is 108 volts, disconnected is 155 volts.

any help appreciated.

Email: Rogerselectronics@yahoo.com

Thanks,

Roger

fosterfolks
New User

Feb 22, 2003, 8:05 PM

Post #2 of 3 (608 views)
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Re: [Roger] Zenith TV-SF2505TR(No start up) [In reply to]	Can't Post

i have the same problem on a SF2799Y, im looking for a power supply,try putting an electic blanket around the tv to warm it up and then try to turn it on,,it worked for us,, good luck,,

elmo
Unregistered User

Feb 25, 2003, 4:37 AM

Post #3 of 3 (597 views)
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Re: [Roger] Zenith TV-SF2505TR(No start up) [In reply to]	Can't Post

Try changing the 100uf/25v capacitor in low voltage power supply. designator is C3407. Replacement should be 35v or 50v.

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