xXColdShotXx
Active Member
Thanks and sorry. I haven't been to audiokarma since 2010, and didn't realize there was a new forum.
Quick question:I finally got around to working on the old SX-1250 recently. I've done all boards except AWF-021 EQ board, one cap on the AWS-094 Function Switch board and the AWR-107 Power Supply board. The EQ board looks like a pain to do and gonna do the power supply board soon. It is sounding good again.
They both sound good to me. I usually use them all at the same time. I have the at-12's and at-15's run in series to be 8 ohm to match the cls-215's.Quick question:
Do the 215 Cerwin Vegas sound any better than the AT15's ?
Can you be more specific which boards Q3 and Q4 are on that way I can look into it? I have a new problem with the 4 lights behind the tuner dial, they work and are weak, but every now and then they'll brighten up.popping noise when turned off means the protect relay isn't releasing quickly enough.
THAT means the protect system is probably not working, the 100uf timing cap in the protect circuit is not being discharged by the q4 controlled by the 992 pnp transistor. Part of the 2383 biasing arrangement. remove q3, then make sure that pulling out Fu5 (awr-107) 1.5 amps toggles the protection in and out.
AWM-094Can you be more specific which boards Q3 and Q4 are on
Would that not be a power supply or connection problem, try rotating fuse FU5 (1.5A) on AWR-107 or removing the fuse and squeezing the fuse hold tabs together for better contact with the fuse after it is re-inserted.I have a new problem with the 4 lights behind the tuner dial, they work and are weak, but every now and then they'll brighten up.
AWM-094
Sorry, but my sx-1250 doesn't seem to have an AWM-094 board. Did you mean AWM-091?