Now it's time to ...

[amr2]

The amp is working fine . Bias and meters are already adjusted. I'm going to do some more tests and I will post some more pics.

 

[amr2]

Something I forgot to mention. With the UCC caps the screw that holds the bridge rectifier must be shortened, it touches the capacitor.

 

[amr2]

Project finished . Some pics of the second unit:

102-Transistors

• amr2
• Jan 6, 2019

103-Heatsinks

• amr2
• Jan 6, 2019

104-Feet

• amr2
• Jan 6, 2019

105-Inside

• amr2
• Jan 6, 2019

106-Inside

• amr2
• Jan 6, 2019

107-Finished

• amr2
• Jan 6, 2019

 

[amr2]

108-Testing

• amr2
• Jan 7, 2019

 

[rottalpha]

Project finished . Some pics of the second unit:

102-Transistors

• amr2
• Jan 6, 2019

103-Heatsinks

• amr2
• Jan 6, 2019

104-Feet

• amr2
• Jan 6, 2019

105-Inside

• amr2
• Jan 6, 2019

106-Inside

• amr2
• Jan 6, 2019

107-Finished

• amr2
• Jan 6, 2019

Fantastic! but I didn't expect anything less

 

[lokerola]

108-Testing

• amr2
• Jan 7, 2019

Freaking gorgeous! Great work!

 

[amr2]

And finally, I decided to do a "Special Edition" with white VUs. It fits better with my PC-2002M.

109-With white VU

• amr2
• Jan 11, 2019

 

[amr2]

For those interested, this is the protection module position (mm):

000-Speaker protection position

• amr2
• Jan 12, 2019

 

[amr2]

And that's all.

 

[bmanone]

Great work! Now that you've finished both units, how do you like the amps? I also reworked two p2200s and am very happy with how good they sound and perform. They are the best sounding amplifiers in my collection (most musical, IMHO).

 

[amr2]

They are excellent amps, very musical, I like them a lot. One of them are now powering my JBL subwoofer, it outputs a very nice bass, well controlled and with enough power. They are my favourite amps along with the PC2002M

 

[Yamaha5000]

No...

Proteus

Is this something that can be input to Proteus for simulation?

 

[amr2]

Is this something that can be input to Proteus for simulation?

View attachment 2744188

yes

 

[Yamaha5000]

yes

I am curious about using a simulation program for troubleshooting sections of the Integrated Amps/Amps. Is it possible to scan a schematic and import? Then is it possible to simulate a symptom and define a possible part that is creating the fault?

 

[amr2]

No, you must draw the schematic using the appropriate spice models. It is very useful to understand the operation of a circuit, or to make your own designs. You can play with components values, simulating situations, and see the result.

 

[Yamaha5000]

Have you seen this before? Can this be imported?

https://www.digikey.com/schemeit

I think it is drawn with spice models

 

[Yamaha5000]

This is from the

programs menu

 

[Yamaha5000]

I am not sure if you recognize that circuit, it is the Protection Circuit Board for a Yamaha CA-1000. I am having an issue with getting the relay to work do to some issue on the board.

This may not have been a great circuit design from the inception Based upon your opinion it may be a good idea to disable this circuit from the amp and use your devices.

 

[Yamaha5000]

To better understand this Thread and the Protection Circuit I pulled up the schematic, absolutely amazing! Sure wish all the Yamaha Service Manuals were so well defined.
I see why you have created this Protection Board since the unit from the factory doesn't have one.

 

[Yamaha5000]

Have you seen this before? Can this be imported?

I think it is drawn with spice models

Have you had an opportunity to review?