Don's DCP wiring for PL 400

[ksrigg]

I am ready to wire the DCP from Don as I now have the speaker binding posts...I need help....or I can pull a PL 400 from the rack, pop the top and take a peek. This way is easier, if someone will help me..

From the left side of the DCP board.....looking at the Phoenix terminals...

Bank One

Left Speaker +
Left EMPTY
Left Speaker -

Bank Two

Right Speaker +
Left Empty
Right Speaker -

Bank Three

DC +
AC from Bridge Rectifier
GROUND-- from copper bus bar...ring terminal to the screw holding the storage cap in place.

I'm sure of Banks One and Two, but Bank Three.....I'm probably wrong... I just need someone who knows to tell me... I'm too excited...

 

[laatsch55]

Calm down and figure it out. I'll post the diagram. You'll onmly get in a hurry if you're excited. BE COOL>

 

[laatsch55]

Here ya go...................

 

[ksrigg]

I calmed down and figued it out. I did what men are NEVER suppose to do. I read the instructions.

I used 18 guage for the AC+ and GROUND. I used 22 guage for the DC + connection. It is soldered to the + rail of the second bank of the outputs, as the instructions indicate..

 

[laatsch55]

Looks good.

 

[laatsch55]

FIRE THAT MOTHER UP!!!!!!!!!!!!!!!!!!!!!!!!

 

[ksrigg]

Should I put the new meter/LED board and meters in the circuit, or does it matter? I have tested with the DBT and all looks cool. I'm ready to put the two fuses back in her and connect speakers and a preamp and CDP, but don't want to jump the gun and screw anything up. What do you think?

Oh and ONLY the DRIVER transistors are installed. Do I need to go ahead and install ALL the outputs, or would it be better to add them one row at a time? i just want to be careful and not blow anything up. I want this one to work..

 

[laatsch55]

Got a scope and meter?

 

[laatsch55]

Don't worry about the meters or meter board yet. Just isolate the wires so they don't shport on anything. We got a long way to go before this gets put ona pair of speaks.

 

[Skratch]

Sutton, Your 675 watt 8 ohm load resistors are on their way.

 

[laatsch55]

Jumped ahead didn't ya?? What are we gonna do with you?? You got lucky this time. You did not adjust bias or have any idea what offset was, ya got lucky.

 

[ksrigg]

Yeah, I got lucky...but you said "FIRE THAT MUTHER UP !!!" and I did. Now I'm ready to set bias and offset. I do have a sig gne, scope and meter. Now what? It does sound a little distorted, so I definately need to not get ahead of you guys. What is a fellow to do? I followed the direction I had and fired her up...

I'm now ready to do it right...

Let me know how....I'm just excited and ready to get er done...

 

[laatsch55]

OK get the service manual out and study the bias adjustment procedure.