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Crumbtrail TV Forums: TV Equipment: TV Repair Forum:
Toshiba no power

 

 


guzz
New User

Jun 24, 2006, 1:00 AM

Post #1 of 9 (1485 views)
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Toshiba no power Can't Post

HI, I have a Toshiba TV/VCR combo (MV13K2R) and when I press the power button nothing happens. No lights, no sound. I couldn't get out the videotape also.
Thanks for your help.



guzz
New User

Jul 2, 2006, 7:58 PM

Post #2 of 9 (1434 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

anyone ??????


(This post was edited by guzz on Jul 2, 2006, 8:09 PM)


mel
Veteran

Jul 2, 2006, 9:59 PM

Post #3 of 9 (1431 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

Did you check the fuse?


rrobor
Veteran

Jul 3, 2006, 5:53 AM

Post #4 of 9 (1424 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

could be the power cord or mains switch


guzz
New User

Jul 3, 2006, 7:28 PM

Post #5 of 9 (1416 views)
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Re: [rrobor] Toshiba no power [In reply to] Can't Post

The power cord looks ok. I don't know which fuse to check and how to check the main switch. This is my first time trying to fix TV.


guzz
New User

Jul 7, 2006, 7:44 PM

Post #6 of 9 (1388 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

bump..


techchris
Veteran

Jul 7, 2006, 7:47 PM

Post #7 of 9 (1383 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

disconnect the horizontal out transistor and see if the power supply starts up.if not check for volts on the main smoothing capacitor. if ok then the power supply has shut down ,maybe regulator fault


guzz
New User

Jul 9, 2006, 1:26 AM

Post #8 of 9 (1366 views)
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Re: [techchris] Toshiba no power [In reply to] Can't Post

Thanks.
Can you point the 3 parts for me if you can see them on the photos.





(This post was edited by guzz on Jul 9, 2006, 1:27 AM)


techchris
Veteran

Jul 9, 2006, 12:49 PM

Post #9 of 9 (1357 views)
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Re: [guzz] Toshiba no power [In reply to] Can't Post

the mains smoothing cap is the big black one on the edge of the pcb, by the two red wires going to the degausse coils and I see the mains fuse right by it f501. plug in the tv and check for voltage on its tags.mind your fingers there is mains voltage nearby.If no volts you have a fault in the mains input .if you have a multimeter check for continuity from the mains plug to the fuse and the neutral pin to the pcb where the mains connects(DO THIS WITH THE TV UNPLUGGED OBVIOUSLY)!if you have voltage on the capacitor then the centre pin of the horizontal out transistor(which is screwed to the flat metal heat sink right by the flyback transformer with the red and orange leads coming out the top) should be unsoldered, the tv switched back on and check for about 110 volts on the point where you unsoldered on the pcb.if you have volts then the fault is probably in the flyback transistor or flyback transformer. good luck

 
 
 


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