![a1278 2011 exploded view a1278 2011 exploded view](https://techable.com/apple/wp-content/uploads/2019/08/MacBook-Pro-2012-13-inch-front.jpg)
You can support this research by one task done by yourself: I'm performing a search for a replacement. etc.īut at the other hand you will prefer a part that exactly fits in theĭrilled holes of the PCB and has exactly same specs and connections inside like the original. of coilwindings,Ĭonnection of the windings to the pins. The measurement of the distance between pins, no. In many catalogs the sellers don't give complete details like Manufactured from a supplier as a so called "custom part".īut several manufacturers offer similar parts.īut the hunt for that part lacks from several problems: Unfortunatly the filter choke with the 2 coils is a part that Apple got but not everybody would prefer tzhat kind of "handling"Īnd yes - in case somebody asks - i also offer that kind of solution: Or you may "repair" with a stick of dynamit and just blast it awayĪnd place instead a cheap mobile home. You have the choice to repair the facility "i want it working and don't want to spend money or efforts"īut that reduces in long term the value of the unit. Of course their is also the other fraction: That has good reason: the more original you preserve your computer the higher the value. "substituted parts as possible" or in other term some prefer to remqain with the Some people prefer to get their original computer running again with as few
![a1278 2011 exploded view a1278 2011 exploded view](http://laboratoriorojan.com.br/admin/s_filial/templates/ford-c4-transmission-exploded-view-i7.jpg)
Instead: "this is a alternate solution:". Of their loaded voltage after power off !įorget all that and just get this: Replacement Power Supplyįirst of all: " forget that all and get this". and it takes few time till that capacitors get rid Red dot on top )get loaded to rather high voltage. Of the parts carefulls measure the Powersupplies output before connecting again the the computerĪnd check if all voltages are back again in specified ranges.Īnd beware of the warnings of tokebln ! After powerup of the supply the big capacitors ( with the small It must be removed carefully and complete ! After replacement carefull - that stuff contains bor-acid and can etch off coppertracesįrom the PCB within a period of time. It must also be replaced.Īnd when the components have been desoldered for replacement the PCB must be cleaned up from all Started leaking while is was exposed to very high temperature. Is not flat anymore but rather a bit "bulbed up" - a sure indicator that this capacitor has You may recognize that the top of the component The yellow marked component is a filtercapacitor. Got slightly damaged and is not anymore with in it's specification. Substance you see between red and yellow marked components. Isolation coating between the single wirecoils started melting. When it got damaged the coils in component marked red started getting very hot and the Goldyellow to brown and somewhere in its side there is possibly a crack. The blue marked component is the security filtercap. You may recognize the brown smeary substance. If you take a close view to the PCB between yellow and red marked components, Some additional remarks to the explenations from tokabln: