Peavey Windsor Effects Loop/Boost Issue

[GoldenVulture]

Re: Peavey Windsor Effects Loop/Boost Issue

I think you may have this wrong.
I think you've got the long red wire anchored at the wrong point.
Is there another cut in the track where I've put the blue next to the arrow. Must be some where or it would make no sense adding that jumper wire there.

 

[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

I think you may have this wrong.
I think you've got the long red wire anchored at the wrong point.
Is there another cut in the track where I've put the blue next to the arrow. Must be some where or it would make no sense adding that jumper wire there.

Absolutely right. Looks like there IS an additional cut that was hiding underneath the adhesive on the red wire. This cuts the track between R7 -> C8 that runs underneath the relay.

 

[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

I've been a bit busy to get to this.
When you turn the amp on , do you hear the relay switches click over [ or when you turn it off ] ?

Forgot to reply to this. The relays do not click when I turn the amp on or off.


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[GoldenVulture]

Re: Peavey Windsor Effects Loop/Boost Issue

Forgot to reply to this. The relays do not click when I turn the amp on or off.


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I revised this. I'm not sure when you tested the relays that you got the jist of what I meant. The green arrow I've put in point to the place to try momentary grounding with a test lead. In other words ground the lead at one end and tap the other end on the arrow points momentarily and off again and repeat a few times. If there is power going into the relay on the other side of that diode, it should switch.[ click ].
No response and they may be damaged.With the power off and residual power subsided, you could always test those coils by setting your multi meter to [ low]Ohms and test each side of the diode on each relay. One way will give you a diode reading and value. Reversed should give you the coil Ohmage. If there is none, it's shot.

 

[aneurysm5000]

Peavey Windsor Effects Loop/Boost Issue

Thank you! Looked up videos on how to do it and thought I got the gist. Apparently I did not. Will try again tonight.


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[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

I revised this. I'm not sure when you tested the relays that you got the jist of what I meant. The green arrow I've put in point to the place to try momentary grounding with a test lead. In other words ground the lead at one end and tap the other end on the arrow points momentarily and off again and repeat a few times. If there is power going into the relay on the other side of that diode, it should switch.[ click ].
No response and they may be damaged.With the power off and residual power subsided, you could always test those coils by setting your multi meter to [ low]Ohms and test each side of the diode on each relay. One way will give you a diode reading and value. Reversed should give you the coil Ohmage. If there is none, it's shot.

Here are my findings.

I took a probe and attached an alligator clip to the end that goes into the multimeter which I then clipped on the amp chassis.

I then took the probe and with the amp power on I touched the diode ends on the same sides of c22 and c38 (sides indicated by green arrows) for both relays. No click.

I turned the amp off and waited about 15 minutes. I then measured readings from both sides of the diodes for the relays. Took readings at 200 and 2k.

SK102

@200 ohms
OL
6.4

@2k ohms
.482
.007

Sk101

@200 ohms
OL
6.4

@2k
.482
.008


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[GoldenVulture]

Re: Peavey Windsor Effects Loop/Boost Issue

Here are my findings.

I took a probe and attached an alligator clip to the end that goes into the multimeter which I then clipped on the amp chassis.

I then took the probe and with the amp power on I touched the diode ends on the same sides of c22 and c38 (sides indicated by green arrows) for both relays. No click.

I turned the amp off and waited about 15 minutes. I then measured readings from both sides of the diodes for the relays. Took readings at 200 and 2k.

SK102

@200 ohms
OL
6.4

@2k ohms
.482
.007

Sk101

@200 ohms
OL
6.4

@2k
.482
.008


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They seem ok. I'm wondering why you can't get a response from them. The diodes seem ok too.
Did you make sure there was power on the other side of the diode ?
Have you got a 9v battery [ like for an FX pedal ] around. With the amp turned off try connecting the 9v momentarily. Negative to the green arrow point , positive on the other side of the diode.

 

[aneurysm5000]

Peavey Windsor Effects Loop/Boost Issue

They seem ok. I'm wondering why you can't get a response from them. The diodes seem ok too.
Did you make sure there was power on the other side of the diode ?
Have you got a 9v battery [ like for an FX pedal ] around. With the amp turned off try connecting the 9v momentarily. Negative to the green arrow point , positive on the other side of the diode.

Grabbed a 9 volt and it’s clicking fine on both relays. I don’t know but I’m thinking maybe I missed something in the readings? I might just spend some time again and trace the voltage all the way to the relays.


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[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

Grabbed a 9 volt and it’s clicking fine on both relays. I don’t know but I’m thinking maybe I missed something in the readings? I might just spend some time again and trace the voltage all the way to the relays.


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Here are the readings I took again.

Note that all readings were taken with multimeter set at 200m V except for D2 and R22 which were taken at 600 V. The side of R22 coming from D2 was taken at 600V but the other side was taken at 200m V.

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[GoldenVulture]

Re: Peavey Windsor Effects Loop/Boost Issue

Grabbed a 9 volt and it’s clicking fine on both relays. I don’t know but I’m thinking maybe I missed something in the readings? I might just spend some time again and trace the voltage all the way to the relays.


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Good, the relays are working. I'll look at your Volt readings a bit later. It's what's happening after the relays [ where they go to the switch plug ] is probably where the problem is. Have you tested the switch [ unplugged ] for continuity or shorts ?

 

[GoldenVulture]

Re: Peavey Windsor Effects Loop/Boost Issue

The red lines are the relay connects to the switch plug. With no switch plugged in they connect directly to R37 which then grounds them from the other side. I'm figuring when you turn the amp on [ no switch plugged in ] the relays should activate immediately. When you plug in the switch it re-routs them through the switches.One way[ on the switches ] connects them, the other way disconnects them , causing the relays to switch.




Also the 0.5v at the emitter of Q1 looks too low. You were getting a replacement for that transistor , weren't you ?

 

[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

The red lines are the relay connects to the switch plug. With no switch plugged in they connect directly to R37 which then grounds them from the other side. I'm figuring when you turn the amp on [ no switch plugged in ] the relays should activate immediately. When you plug in the switch it re-routs them through the switches.One way[ on the switches ] connects them, the other way disconnects them , causing the relays to switch.

Also the 0.5v at the emitter of Q1 looks too low. You were getting a replacement for that transistor , weren't you ?

I was expecting the new part by Tuesday unfortunately I just got a message from Amazon saying the seller has not confirmed the item shipped. I think I’ll cancel the order and keep looking.

I did check the switch to ensure it works. LEDs light up as expected and toggle when the switches are clicked.

I’ll update once I get the transistor in!



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[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

Hey everyone just an update.

Postal service lost my first shipment so I got refunded.

Ordered again and I should get the parts tomorrow.




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[aneurysm5000]

Re: Peavey Windsor Effects Loop/Boost Issue

Sorry for the huge gap. Life got in the way.

I finally carved some time to install the new transistor but unfortunately the issue was not fixed and am still getting the same readings (0.5 at the emitter). Effects loop and boost still don’t work.

I’m considering just taking it to a shop at this point.


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[Nostalgic Distortion]

Re: Peavey Windsor Effects Loop/Boost Issue

This has got to be the most effort ever put into fixing a Peavey Windsor....

The other guitar player in my band has 6-7 of them down in his basement right now because he’s been using them live for years & every time he encounters a issue he just spends $200-$300 & buys another one....

 

[Artie]

Re: Peavey Windsor Effects Loop/Boost Issue

The other guitar player in my band has 6-7 of them down in his basement right now because he’s been using them live for years & every time he encounters a issue he just spends $200-$300 & buys another one....

Well, let him know I've got his next one. Brand new. Only been on for maybe 10 minutes. :deal:

 

[Nostalgic Distortion]

Re: Peavey Windsor Effects Loop/Boost Issue

Well, let him know I've got his next one. Brand new. Only been on for maybe 10 minutes. :deal:

Thanks man, I’ll definitely tell him...