SX-850 (Bypass Capacitors In Lieu of Original Resistors)

[Super Noob]

Going to replace the main filter caps today... have re-capped pretty much everything else.

Change the relay last night.

Order 18,000 uF screw type =
United Chemi-Con

Read here: http://marantzhallo-fi.blogspot.com/2016/03/pioneer-sx-850-receiver.html that I should use a stacked film .1uF capacitor (bypass) on each filter cap.

Mouser: ECW-FA2J104J & have these ready to go.

Then I read i should use a bypass based on = cap roughly filter cap size / 1000. So roughly 1.8 uF bypass cap.

Also read the the EW uses 2.2 stacked film religiously...

Now thinking I should just install the original bleed resistors for now? I stay confused.... is the .1uf films I have on handokay?

Thanks in advance.
Super Noob

 

[markthefixer]

first matter: Always use bleed resistors, that huge charge in the cap is a hazard.

COMPLETELY SEPARATE MATTER
second matter: the 0.1uf films will work fine.
going higher in capacitance will not hurt anything but your wallet. They MIGHT have some additional discernible positive effect.

 

[Super Noob]

Mark-The-Fixer... Huge Fan. 1st Time Caller.

I will post some pictures... will put the resistors and caps on the same ring terminals.

Thanks for helping the smaller brains.

 

[Super Noob]

Mark... thanks again for your help. See work below. Have changed all caps (minus the turner board) - Including control boards.

It is dialed in a ~00mv DC via VR1 & VR2. ~20mv DC on VR3 and VR4.

After about 10 minutes the relay drops (now new) and comes back... it cycles a few times, then becomes stable for awhile.

I need to get into the protection board transistors. Q6 and Q7.

Have KSC2690AYS (Q6) on hand and KSC1845 (Q7)... I think you recommend a different replacement for Q7. I need to check spec on 2SC945.

Anyways thanks for sharing you knowledge and insight over the years.

 

[Super Noob]

Changed as follows... KSC2690AYS (Q6) and KSC1815 (Q7) (in lieu of KSC1845).

Let me see if that fixes it for good.

Edit:
That did the trick =