FIXED-Volume only on 0D channel but nothing on clean channel

[jcsifu]

Ok, this picture represents what I have tested to be accurate.
There is continuity from the 220k to the .05 cap.

I do not know the trace side of the board.

[jcsifu]

Also, this is my relay,a NEC MR62-12USRY

datasheet
http://www.mouser.com/ds/2/283/mr62-303636.pdf

[ToneMerc]

I think you are missing a jumper from the Clean out to the normally closed eyelet on the other pole of the switch. This would break the connection for the clean channel when the relay wasn't engaged, although it would still connect with OD when engaged

Use the diagram on the bottom...

Taylor, that bottom diagram only applies to the AGB relay board. That's why I asked early on which relay board he was using. I was thinking very early in this thread that he was missing that NC/NO jumper under the OD relay, but he said it worked prior to him doing the high to low plate conversion.If it truly worked fine prior to him doing conversion, it does not point toward the rear switching or the relay as all the conversion is done on the main board.

TM

[ToneMerc]

Also, this is my relay,a NEC MR62-12USRY

datasheet
http://www.mouser.com/ds/2/283/mr62-303636.pdf

Did you install these relays or are these Ceriatone stock relay? I used these once and found that the older ones that I had, the coils were polarized.

TM

[rogb]

Here is the ctone wiring for the relay.
Just checking, but have you removed the relays?
If so, make sure they have been replaced in the correct orientation. Been there with that

When you switch the rear switches carefully you should at least hear the relays click in a quiet room.
Also check to see there is power coming from the regulator to the diode on the boards.

[bluesfendermanblues]

Could you have interchanged the boards?

used the OD board for PAB
and the OD for PAB

[amplifiednation]

I think you are missing a jumper from the Clean out to the normally closed eyelet on the other pole of the switch. This would break the connection for the clean channel when the relay wasn't engaged, although it would still connect with OD when engaged

Use the diagram on the bottom...

Taylor, that bottom diagram only applies to the AGB relay board. That's why I asked early on which relay board he was using. I was thinking very early in this thread that he was missing that NC/NO jumper under the OD relay, but he said it worked prior to him doing the high to low plate conversion.If it truly worked fine prior to him doing conversion, it does not point toward the rear switching or the relay as all the conversion is done on the main board.

TM

It looks like the NC/NO is connected with traces on the ceriatone relays?

I didn't see that the amp was working fine.

Well if those contacts are connected...then I would jumper the relay, clean .05 coupling cap to the master and if that works then it's the relay...if not then you know it's somewhere else

[Structo]

I made this drawing for the AGB boards.

[jcsifu]

Also, this is my relay,a NEC MR62-12USRY

datasheet
http://www.mouser.com/ds/2/283/mr62-303636.pdf

Did you install these relays or are these Ceriatone stock relay? I used these once and found that the older ones that I had, the coils were polarized.

TM

They are Ceriatone, I've located a place that sells them if I need to replace it.

[jcsifu]

Here is the ctone wiring for the relay.
Just checking, but have you removed the relays?
If so, make sure they have been replaced in the correct orientation. Been there with that

When you switch the rear switches carefully you should at least hear the relays click in a quiet room.
Also check to see there is power coming from the regulator to the diode on the boards.

I did remove the relay, but only after the issue. I took a pen light to see if I could see anything on the traces on back that might be an issue. I marked direction when I removed it. The function is there, at least I know that it is changing from OD working, then switched to quiet (supposed to be clean).

I will check tonight after work, but I believe there is power coming from the regulator to the diode on the boards or it wouldn't switches it is. The footswitch lights for PAB and OD/Clean change as well.

[jcsifu]

I think you are missing a jumper from the Clean out to the normally closed eyelet on the other pole of the switch. This would break the connection for the clean channel when the relay wasn't engaged, although it would still connect with OD when engaged

Use the diagram on the bottom...

Taylor, that bottom diagram only applies to the AGB relay board. That's why I asked early on which relay board he was using. I was thinking very early in this thread that he was missing that NC/NO jumper under the OD relay, but he said it worked prior to him doing the high to low plate conversion.If it truly worked fine prior to him doing conversion, it does not point toward the rear switching or the relay as all the conversion is done on the main board.

TM

It looks like the NC/NO is connected with traces on the ceriatone relays?

I didn't see that the amp was working fine.

Well if those contacts are connected...then I would jumper the relay, clean .05 coupling cap to the master and if that works then it's the relay...if not then you know it's somewhere else

I did jump the gap and clean was beautiful, I did need to switch the footswitch to clean to avoid a slight splatty sound to the notes, but once it was switched to clean channel it was beautiful.

I will place an order for a replacement relay tonight.

[jcsifu]

Structo,
my boards are diff layout than those but function the same.

At this point it looks like replacing the relay is the best course of action. It does not seem to be any connection issue.

I greatly appreciate you guys taking time to help here. I've never dealt with relays and I'm beginning to have a slight understanding of the wiring now, which is nice.

Until the new relay arrives I will be checking this thread in case someone posts a question or comment. I'll hopefully post back in a few days with a working amp will a new relay. There is only 1 place I can find that exact relay and I've never purchased from them so I don't know lead time.

jc

[10thTx]

I like (EL34 World) Doug Hoffman's relays & relay board real well and have had good success with them. Plus he has quite a bit of supporting info on how to use them.

I am sure there are numerous other good suppliers.

With respect, 10thtx

[rogb]

Try these:
http://el34world.com/Forum/index.php?topic=14597.0

http://el34world.com/projects/relay_switch.htm

[jcsifu]

Hmm...I didn't really consider just getting a diff relay board and relay. I already ordered the replacement relay that's the same as the currently installed one. Either way I have a wait time for the delivery. If this replacement proves to not be the issue, I will probably change the board out and use the ones mentioned for sure.