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#1 |
New Member
Join Date: Feb 2018
City & State: Phily, PA
My Country: USA
I'm a: Knowledge Seeker
Posts: 8
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![]() Hello folks, recently I got wireless router Linksys EA8500, half working.
After visual board inspection I found one bad IC, cannot find anything in google, maybe someone can help me to identify it. Looks looks it's CPU voltage regulator. Marked as 208AB 627FL 2019 (UP8) - Voltage around IC - 0v On other side there is another one 208AB 627FM 2080 (UP12) Voltage 1.05V Photos in attach |
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#2 |
Badcaps Veteran
Join Date: Feb 2010
City & State: S.F. Bay area
My Country: USA
Line Voltage: 120V 60Hz
I'm a: Knowledge Seeker
Posts: 34,692
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![]() 208AB looks to be Dual-Buck switching regulator, the 209AB looks to be single Buck switching regulator.
I have no luck finding any info on either one of them.
__________________
Never stop learning Basic LCD TV and Monitor troubleshooting guides. http://www.badcaps.net/forum/showthr...956#post305956 Voltage Regulator (LDO) testing: http://www.badcaps.net/forum/showthr...999#post300999 Inverter testing using old CFL: http://www.badcaps.net/forum/showthr...er+testing+cfl Tear down pictures : Hit the ">" Show Albums and stories" on the left side http://s807.photobucket.com/user/budm/library/ TV Factory reset codes listing: http://www.badcaps.net/forum/showthread.php?t=24809 Last edited by budm; 11-20-2018 at 10:59 PM.. |
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#3 |
New Member
Join Date: Feb 2018
City & State: Phily, PA
My Country: USA
I'm a: Knowledge Seeker
Posts: 8
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![]() I think I found similar it's SMB208ANT-2019L or SMB208A
Now I have another problem, to find it in stock. Last edited by xfox; 11-21-2018 at 08:46 PM.. |
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#4 |
Badcaps Veteran
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 1,210
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![]() You might have another problem if I read this correctly it says that it digitally programmed now is that to mean that it has to be programmed before it installed
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9 PC LCD Monitor 6 LCD Flat Screen TV 30 Desk Top Switching Power Supply 10 Desk Top Power Supply 10 Battery Charger Switching Power Supply for Power Tool 6 18v Lithium Battery Power Boards for Tool Battery Packs 1 XBox 360 Switching Power Supply and M Board 25 Servo Drives 220/460 3 Phase 6 De-soldering Station Switching Power Supply 1 Power Supply 1 Dell Mother Board 15 Computer Power Supply 1 HP Printer Supply & Control Board * lighting finished it * These two repairs where found with a ESR meter...> Temp at 50*F then at 90*F the ESR reading more than 10% 1 Over Head Crane Current Sensing Board 2 Hem Saw Computer Stack Board All of these had ![]() All of the mosfet that are taken out by bad caps ![]() |
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#5 | |
Badcaps Veteran
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 1,210
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![]() Quote:
This is what I am talking about earlier Last edited by sam_sam_sam; 11-27-2018 at 09:55 PM.. |
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#6 |
New Member
Join Date: Feb 2018
City & State: Phily, PA
My Country: USA
I'm a: Knowledge Seeker
Posts: 8
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![]() I think router's firmware doing that (IC programming/control), but anyway I was unable to find replacement, it's Qualcomm IC and there is no replacement, so body completely dead.
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#7 |
Badcaps Veteran
Join Date: Jul 2011
City & State: Sunny Jacksonville FL
My Country: USA
Line Voltage: 120 Volts 60 HZ
I'm a: Knowledge Seeker
Posts: 1,210
|
![]() You can try this
https://www.hkinventory.com/public/P...Code=&Qty=2562 I have not used them before When I do an inquiry I ask if they take PayPal if they do not I will not use them That is just me |
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