SA-9100 On The Way!

[MarkyM]

Hi all,

I have a pretty nice SA-9100 on the way from "the bay". It's my first Pioneer Integrated and I'm excited to get it back in shape!
The seller had posted a video that shows it coming out of protection normally and passing audio in both channels.
I hope that is the case when it arrives.

I'll be restoring it, doing a full recap and will be changing out the known bad transistors, namely...
2SC1312 (Control Amp Q5, Q6, Q7, Q8), 2SC1313 (EQ Amp Q3, Q4, Switch B Q1, Q2), 2SC1345 (Filter Amp Q1, Q2, Q3, Q4) > KSC1845FTA
2SC1451 (Power Amp Q6, Q7) > KSC3503DS
2SA726 (EQ Amp Q5) > KSA992FBU
2SA720 > KSA1013YBU (PS Q4) / KSA1220AYS (PS Q6 & Q8)
2SC1318 (PS Q5, Q7) > KSC2890AYS

Are there any others I should consider replacing as well?

Also, would it be a good idea to change any of the diodes? (I will be adding the 1N4004 kickback diode for the relay)

The diodes on the Power amp and Protection boards are:
1S2471
1S2472
1S2473
It looks like the 1N4148 would be OK for all of these, correct?

I also ordered 10 Ohm, 1 Watt metal oxide resistors for the amp boards and 390 Ohm, 1 Watt resistors for the power supply B board.

Thanks!

 

[MarkyM]

While I'm waiting, I'm putting together the order for the recap and I have a question about 47uF C5/C6 & 22uF C11/C12 on the Filter Amp board AWK-021.

These are specified by Pioneer as "cea" but they look to be in the audio path so UPW or FC are probably not the best choice.

I have some UKL's and UKT's in stock. So UKL (super low leakage) or UKT (audio) for C5/C6 & C11/C12?
Since low-leakage is not specified by Pioneer, maybe UKT are the winner for these?

Also, it's sad to see all the lower value, lower voltage UKL's disappearing.

Thanks,
--Mark--