MacTrove
Home▸ Forums▸ SE/30 sound issues: Installed 3rd party ROM in SE/30; sound gone, only static — #17▸ SE/30 sound issues: Installed 3rd party ROM in SE/30; sound gone, only static —
Post #17 by roj_matt
Source ForumSE/30 sound issues: Installed 3rd party ROM in SE/30; sound gone, only static — #17
CategoryTroubleshooting
Post DateWed, 14 Oct 2015 - 21:48
Original URLhttps://68kmla.org/bb/threads/se-30-sound-issues-installed-3rd-party-rom-in-se-30-sound-gone-only-static.2808/
Post
techknight said:
broken data line to ASC. Common problem. Sometimes you get a direct break at the ASC, But 99% of the time, the break occurs between the 8530 and 53C80 SCSI/SCC. 

The result is crappy to no sound, and majority of OS freezes/crashes with address error. 
Click to expand...
Ok, so I found the schematics and did continuity tests.  I tested the address lines between UE10 and UK6 (as well as UJ11, and UI12).  Everything checks out fine.  I also checked for continuity from the Sony sound chips (UB10 and UB11) to UE10.  All is well there too.  Do you have any other suggestions?