No Sound Se/30 Reloaded board

iantm

6502
I just received a serviced reloaded board. At first it didn't boot — I got the stock VRAM Simasima — but I found some of the chips weren't properly seated and tried stock ROM shifted in the socket slightly for better contact.

It boots! But no sound.

I am going to work with what I know / am capable of doing, as methodical as I can be: Plug in headphone to see if I get sound at all. Continue to play with the chip seating. So far, it's only sound. SCSI works, ROM/RAM swapped a few times, but none of the latter matters here I don't think because if it was the issue I wouldn't get to the desktop.

I don't think it's a major issue with chips as the components were working prior to the transfer, but since I didn't do the transfer myself and don't have ton of diagnostic tools it's difficult for me to say.

Any other advice — for what to try, or what diagnostic tools might be useful in this situation outside of a multimeter would be helpful. Hopefully it doesn't mean I need an oscillator or something else really expensive. I'll also check out CayMac's videos

OR maybe: What, besides a SE/30 extension cable would be beneficial in running the board outside of the chassis? I think part my issue here is that I'm running a video card from the PDS slot; I'll switch to a Mac without that so make that easier.

I'm thinking jumper wires from the speaker -> board might be all I need once I can get the board out of the chassis?
 

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considering it's booting, it's probably something in the amplifier circuit... all you really need to diagnose that is a multimeter.

when you say no sound... do you mean no sound from the speaker? if you plug in headphones, do you hear sound?
 
Good news is the headphones register clear sound and startup chime, so I think the problem is much narrower and might be physically connected to the jack. I'll fuss with that and/or swap with a spare.
 
there's a microswitch in the headphone jack that mutes the speaker when headphones are connected... sounds like it's screwy. I'd just swap it for a spare.
 
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