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Thanks a Lot Marcel  Fixed following your suggestions!

Hi Marcel  thanks a lot for your support ! Will try and update you meanwhile I solved the problem finding another working analog board . 

Hello Marcel referring to the above list  UH6 pin 6 to pin 26 UI4 pin 11 to pin 25 UI4 pin 12 ?? not found pin 15?? not found

Hello Marcel  thank for your suggestions  i have also tried replacing UH6 ( no success) i have checked all connection as following: pin UL1  to   pin UH6  9    to   2   ok 3    to   5   ok 4    to   7   ok 5    to  10  ok UH6 to U14 BBU pin 13 14 1  R69 to pin 17 U14 BBU  ok also to...

Hello Marcel  thanks for your suggestion , but in my board those VIAS are ok 

Hello Folks I recently acquire a Macintosh Classic for parts not working , logic board was pretty clean without battery explosion, as usual I washed Logic board and recapped with new radials capacitors . at the first start up no chime and distorted checkerboard pattern , I then replaced VIA and...

Hi Tech  thank you for reply and suggestions , i missed two  infos : 1)i checked this display with repaired ribbon on another fully functionally portable and it showed only the two near lines ,this problem is sure on the LCD panel or ribbon cable , 2) i try with the  fully functional lcd...

Here following attached motherboard pics

Hello Guys  recently recapped and restored flat damaged cable in my Macintosh Portable Backlit , now it remain 2 problems to solve  1) the two white lines : i suppose it is a display problem  2) the continued lines : each 6 pixel , i remember i had the same problem with SE30 with bad UE , ...

May the Force be with you Ferrix!

Hi Tech!  Yes you're right, unfortunately I've tried with a modern 2N5060, apparently with the same features but it does not work properly 

Hello after burning i'm looking for a replacement of SCR E0122 YA 8 located in Q12 international  , i founded in the forum a discussion in which suggested replacement with equivalent SCR 2N5060 , i try with it but does not work. Any suggestion , or somebody has  original spare parts ?

Thank You !

Hello  i have this card but i can not find manuals,software  or infos on the web , i tested on my Macintosh Iicx , Ci and quadra 700 but is not recognized  anyone can help me ? thank you 

Thank you  as well i'll test ram i'll update you !

Hello  i have problems with this mother board , washed and tested make chime on start up but black screen and sad icon with jail bars and unreadable error codes . Tested roms on another motherboards and they are ok any suggestion?  Bad ram? thank you for suggestions 

Problem Solved! Macintosh IIx is now back to life!  repaired  UC7 with a lot of patient as Elfen suggested me ( thank you man!!) 

Hello  the picture i have attached is referring to a repair i have done on my mobo and the connection i have done is not an universal repair , i found this broken connection on mine  , happy you have partially solved your problem but you have to check with multimeter all continuity and you'll...

Check continuity  on the mobo it is common  sometimes some traces are broken  see picture attached  

My video card is 820-0600 macintosh display card , i tested on another working Macintosh IIx with high resolution monitor 13" and it is perfectly working , i have tested the other video board i have on the other Macintosh ( the computer is to my parents ) and on this macintosh is not working, i...