Skip to main content
Home Forums 68kMLA Macintosh Plus - Horizontal Line
Thread

Macintosh Plus - Horizontal Line

68kMLA Troubleshooting 13 posts Sep 30, 2015 to Oct 7, 2015
Of course I have googled that! I am unable to buy because I live in Turkey and it will take lots of money and ages to arrive. Anyways I think it's because of P1. Where the heck is P1 I just can't find P1

3_Analog_board_refurbished.jpg.7b07b564de017365d9c9853fbb572fce.jpg


http://maccaps.com/MacCaps/Repair_books.html

1 - change all the caps

2 - C1 Should be changed with something heavy duty like this http://www.mouser.com/ProductDetail/Panasonic/ECW-FD2W395K/?qs=sGAEpiMZZMv1cc3ydrPrF5m%252btQWx%252bSdKfqDEEG59TPQ%3d

3 - Desolder all the pins of J4 and J2,  Clean/scrub any joints that were burnt/cracked with solder wick and flux and liberally re-solder all the pins  

4 - test it.

5 - if you still get that line then it could be this : Q4

well it looks like according to the silkscreen on the unversal International version there.

J2 / J4 are the same

C1 is CR4

Q4 is Q3

mp.ls