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Author Topic: IC Replacement/Substitute  (Read 2091 times)

Offline johnconstantine

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IC Replacement/Substitute
« on: September 25, 2009, 09:56:50 PM »
may paraan bang malaman kung ano replacement ng isang IC?
wala kc available parts nagbebenta eh...
naghahanap me ng IC na KA7909 eh..ano po ba ung pwdeng substitute o replacement IC?
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IC Replacement/Substitute
« on: September 25, 2009, 09:56:50 PM »

Offline kraze

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Re: IC Replacement/Substitute
« Reply #1 on: September 25, 2009, 10:09:52 PM »
Try LM79XX series or directly LM7909 Voltage regulator
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Re: IC Replacement/Substitute
« Reply #1 on: September 25, 2009, 10:09:52 PM »

Offline tiktak

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Re: IC Replacement/Substitute
« Reply #2 on: September 25, 2009, 10:11:02 PM »
tama 79XX series regulator lang yan para sa -9  ;D
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Re: IC Replacement/Substitute
« Reply #2 on: September 25, 2009, 10:11:02 PM »

Offline ultrasonic™

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Re: IC Replacement/Substitute
« Reply #3 on: September 25, 2009, 10:26:14 PM »
Quote from: tiktakx on September 25, 2009, 10:11:02 PM
tama 79XX series regulator lang yan para sa -9  ;D

korek  (^_^)
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Re: IC Replacement/Substitute
« Reply #3 on: September 25, 2009, 10:26:14 PM »

Offline mArKhAo

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Re: IC Replacement/Substitute
« Reply #4 on: September 25, 2009, 10:29:02 PM »
meron pbang ganyan? hehe, sa mga lumang board ng tv, baka meron...
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Re: IC Replacement/Substitute
« Reply #4 on: September 25, 2009, 10:29:02 PM »

Offline nucleus

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Re: IC Replacement/Substitute
« Reply #5 on: September 25, 2009, 10:41:36 PM »
Quote from: johnconstantine on September 25, 2009, 09:56:50 PM
may paraan bang malaman kung ano replacement ng isang IC?
wala kc available parts nagbebenta eh...
naghahanap me ng IC na KA7909 eh..ano po ba ung pwdeng substitute o replacement IC?


KA7909 iyan yung version ng 7909 ng KIA isolated yung package nyan kung hindi naman nakaheatsink palitan mo na lang ng LM7909 na metal tab
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Offline tiktak

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Re: IC Replacement/Substitute
« Reply #6 on: September 25, 2009, 10:59:28 PM »
Madami nyan, mas familiar nga lang sa mga nagtitinda pag nag umpisa sa lm
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Offline nucleus

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Re: IC Replacement/Substitute
« Reply #7 on: September 25, 2009, 11:06:01 PM »
Quote from: tiktakx on September 25, 2009, 10:59:28 PM
Madami nyan, mas familiar nga lang sa mga nagtitinda pag nag umpisa sa lm

AFAIK plastic isolated tab yung KA7909 karaniwan meron sa mga sony tv sets
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Hi! I'm nucleus and i carry the charge 8)

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Offline johnconstantine

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Re: IC Replacement/Substitute
« Reply #8 on: September 26, 2009, 09:52:40 AM »
pwde bang 12volts? o dapat tlga 9volts?
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Offline tiktak

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Re: IC Replacement/Substitute
« Reply #9 on: September 26, 2009, 10:03:08 AM »
para sa -9V talaga yan
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Offline SpongeBob

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Re: IC Replacement/Substitute
« Reply #10 on: September 26, 2009, 10:14:39 AM »
also negative ang polarity nyan
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Offline johnconstantine

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Re: IC Replacement/Substitute
« Reply #11 on: September 26, 2009, 10:28:41 AM »
sorry mali pag tanong ko, i mean ang nasira kong voltage regulator -9volts tapos pwede ko bang palitan ng -12volts na ic o dapat tlga -9volts?
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Offline tiktak

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Re: IC Replacement/Substitute
« Reply #12 on: September 26, 2009, 10:49:11 AM »
saan po ba ito naka kabit? dapat -9V padin ang ipalit dyan madami naman tinda nyan ;D
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Offline johnconstantine

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Re: IC Replacement/Substitute
« Reply #13 on: September 26, 2009, 12:26:32 PM »
sa DVD player ko...try ko nalang hanapin ung LM 7909 baka meron..ung KA7909 halos lahat ng electronics shop pinuntahan ko wala tlga... hehe salamat sa mga nagtulong..
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Offline sEPh

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Re: IC Replacement/Substitute
« Reply #14 on: September 26, 2009, 01:13:36 PM »
kung wala kang makita,pwdi namang gawin yan...kelangan mo lang ng PNP transistor,9v zener diode and 1pc resistor...
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Offline beginner wan

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Re: IC Replacement/Substitute
« Reply #15 on: September 26, 2009, 07:20:57 PM »
^  ??? paano po gagawin yung suggestion nyo sir?  ???
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Offline nucleus

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Re: IC Replacement/Substitute
« Reply #16 on: September 26, 2009, 09:47:25 PM »
Quote from: beginner wan on September 26, 2009, 07:20:57 PM
^  ??? paano po gagawin yung suggestion nyo sir?  ???

boosted zener regulator? maybe
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Offline sEPh

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Re: IC Replacement/Substitute
« Reply #17 on: September 27, 2009, 11:16:19 AM »
eto...
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Offline verpuno

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Re: IC Replacement/Substitute
« Reply #18 on: October 23, 2009, 10:52:19 AM »
NTE1967 -10v pwde yan pamalit try mo sa alexan
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Re: IC Replacement/Substitute
« Reply #18 on: October 23, 2009, 10:52:19 AM »
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