Schematics for a Apple IIe international NTSC motherboard - 820-0188-E

3 posts / 0 new
Log in or register to post comments
Last post
August 2, 2019 - 1:57am
#1
mamejay
Offline
Last seen: 4 years 8 months ago
Joined: Jul 3 2019 - 21:46
Posts: 8
Schematics for a Apple IIe international NTSC motherboard - 820-0188-E

Hey everyone,

Does anyone have a schematic for a Apple IIe International NTSC board?  820-0188-E

 

Want to know what the solder jumpers are for.

I am in Australia and managed to get a proper NTSC crystal and now have colour on my CRT TV but cannot get colour on my other LCD screens which do support NTSC.

Wondering if the solder jumpers have anything to do with setting the system correctly to NTSC

 

Thanks

 

 

Top
August 2, 2019 - 4:45am
tokabln
tokabln's picture
Offline
Last seen: 4 months 4 weeks ago
Joined: Dec 30 2015 - 10:48
Posts: 253
https://archive.org/details

https://archive.org/details/apple_iie_ntsc_schematic

 

hope this helps.

Top
August 5, 2019 - 9:40pm
mamejay
Offline
Last seen: 4 years 8 months ago
Joined: Jul 3 2019 - 21:46
Posts: 8
tokabln wrote:https://archive

[quote=tokabln]

https://archive.org/details/apple_iie_ntsc_schematic

 

hope this helps.

[/quote]

 

Thanks for that.  Still doesn't let me know what the jumpers do.  Just bypasses a few things.

Just want to know if these have anything to do with setting the machine to a true NTSC signal for composite output.

Top
Log in or register to post comments