i have here is a 1987 sears sr 3000 tv i have the flyback off its high side is dead low side was working cause bulb was lit up i do have sound replaced fuses so at least i know whats wrong i am gonna post pics of the fly back and hopefully someone can help me with this so i can get this tv back up and running.
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Re: sears sr 3000 crt tv
when testing a flyback really the only way to tell if the fly back is good or not is withta ringer. Did you check to see if your horizontal output transistor shorted?Did I leave the soldering iron on? -
Re: sears sr 3000 crt tv
well theres no power to it none and the other wire running to the bulb is working lights up just no picture and i got a voltage from the other wire to the bulb so yeah the only thing i remember is hearing a pop when the tv went out the sound and everything else turns on channel box doesnt kick on tho and i think its part of the issue as well i was told the flyback was dead an thats as far as i know i'm waiting on the info from sams publishing on the board so i can trace test the resistors to make sure nothing else is wrong i have tested and checked the 2 boards one the channel changer from front 2 board to the left which is low voltage board that controls the controls the high voltge part of the board i have out and i have tested all resistors and capacitors and all look ok and good to me i'm just hoping its the flyback at this pointComment
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Re: sears sr 3000 crt tv
and where would i find the horizontal output transistor cause that does sound familiar .Comment
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Re: sears sr 3000 crt tv
heres a pic of the board
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Re: sears sr 3000 crt tv
Check all transistors on the heat syncsDid I leave the soldering iron on?Comment
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Re: sears sr 3000 crt tv
yup checked those all good and all small one are good like i said its the flybackComment
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Re: sears sr 3000 crt tv
now to find a flyback tho
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Re: sears sr 3000 crt tv
just need help finding the fly back sears model 564.48124751 ser v7400104185 sears sr 3000 1987 marchComment
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Re: sears sr 3000 crt tv
found out This '87 Sears LXI (built by Sanyo)Comment
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Re: sears sr 3000 crt tv
close thread tv is now alive and workingComment
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Re: sears sr 3000 crt tv
So you just changes the flyback and tv back to alive?"There is no shortcut to be successful. No pain, no gain."
Best Regards
Rudi
Thank You
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Re: sears sr 3000 crt tv
Yea im curious Did you find a new flyback?Did I leave the soldering iron on?Comment
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Lenovo 3000 Series Schematic
Lenovo 3000 was a line of low-priced notebook and desktop computers designed by Lenovo Group targeting small businesses and individuals. It was replaced with the IdeaCentre and IdeaPad brands.
3000 C100 laptop with Braille keyboard
Lenovo 3000 C
C100, C200 - 15-inch XGA screen
Lenovo 3000 N
N100, N200 - 14.1-inch- and 15.4-inch- WXGA models
N500 - 15.4 inch screen.
Lenovo 3000 V
V100, V200 - 12.1-inch WXGA models
Lenovo 3000 G
G400, G410, G430, G450, G455, G510, G530, G550, and G560...10-04-2024, 06:05 AM
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