saa-001 missing part..

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saa-001 missing part..

Postby dmitlee » Fri Nov 03, 2017 1:20 pm

Image
hi! i'm nwebie.
i'm repairing saa-001.the symtom is blod.1 month ago was good working or random shut off.
now pulsing blood. after took apart i found 2 missing part
what does the another ic?
any suggetion plz!
dmitlee
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saa-001 missing part..

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Re: saa-001 missing part..

Postby bart961 » Sun Nov 05, 2017 11:48 pm

That IC is a secondary power IC, if im not mistaken. It can surely cause a BLOD and by the looks of the overall condition of the chip its been worked on, im sorry to say, poorly.

your best bet is to get a donor board, remove all the affected chips and components in the surrounding area; completely clean all pads and tin with some fresh solder, and then re-attach all donated components.

Its tedious work but we all do it.

Let us know how it works out.
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Re: saa-001 missing part..

Postby dmitlee » Mon Nov 06, 2017 4:17 pm

thank you for respond.i'll do it asap.
in fact this console was not sync. controller. while i was resoldering after programed the nor dump.2 resistor was missed.but was working good or random shut off. you are sure that that this circuit made the error? i want to change just 2 resistor o 1 resistor( on sab-001 there is just 1 resistor). what do you think? ( is there a possiblity with ram?)
thank a lot. i'm sorry my poor english.
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