Orion street ZO6000.5 missing parts help

[imraneesa]

Hi all,

Some tech removed all the circuitry that belongs to sub channel and just jumpered some wire from stereo channel output to sub output. I want to know the part value of the missing parts in the picture. Thank you.

 

[Perry Babin]

Post a photo of the class D section.

 

[imraneesa]

Post a photo of the class D section.

It is using IR2184s.

 

[Perry Babin]

What a mess.

I don't have any definitive information but a 1k 2w resistor, a 1uf film capacitor and a 10uf bipolar electrolytic will probably be good enough. Since I've found no reliable 10uF bipolar electrolytic caps, I use 10uF film caps.

 

[imraneesa]

What a mess.

I don't have any definitive information but a 1k 2w resistor, a 1uf film capacitor and a 10uf bipolar electrolytic will probably be good enough. Since I've found no reliable 10uF bipolar electrolytic caps, I use 10uF film caps.

It have small voltage coming from separate winding in the transformer. But when I test voltage there is no voltage. I am just seeing one winding connected to two diodes. Picture attached.

 

[Perry Babin]

The winding has to have two ends. What is the other end connected to?

 

[imraneesa]

The winding has to have two ends. What is the other end connected to?

Both sides winding is connected to two separate diodes. Picture attached.

 

[Perry Babin]

If it's completely isolated, you would have to measure across the windings to measure the voltage.

If it feeds a 7815 type regulator, place the black probe on the ground terminal of the regulator to measure the input and output voltages.

 

[imraneesa]

If it's completely isolated, you would have to measure across the windings to measure the voltage.

If it feeds a 7815 type regulator, place the black probe on the ground terminal of the regulator to measure the input and output voltages.

It is using tip41c and zener diode.

 

[Perry Babin]

The Zener has to go to a ground reference. If it's a positive regulator, the anode of the Zener will be the reference (black probe).

 

[imraneesa]

The Zener has to go to a ground reference. If it's a positive regulator, the anode of the Zener will be the reference (black probe).

4v going to the SD pin of ir2184s but no oscillations. Input signal is attached.

 

[Perry Babin]

Do you have 12v on the low-side supply pin of the 21844?

 

[imraneesa]

Do you have 12v on the low-side supply pin of the 21844?

I have 4v black probe on com and red on pin 5. This is the same voltage coming from isolated windings.

 

[Perry Babin]

What's 'com'?

Place the black probe on the negative rail.

 

[imraneesa]

What's 'com'?

Place the black probe on the negative rail.

Com is pin3 of 21844.


I placed on negative rail now and I am still only getting 3.5v.



I removed outputs and 21844 and still only 3.6v

 

[Perry Babin]

What's the voltage on all 3 legs of the regulator transistor?

Black on negative rail.

 

[imraneesa]

The Zener has to go to a ground reference. If it's a positive regulator, the anode of the Zener will be the reference (black probe).

Anode of zener is connected to pin1 of transistor. Pin1 to pin1 no voltage. Pin1 to pin3 2.3v

 

[imraneesa]

What's the voltage on all 3 legs of the regulator transistor?

Black on negative rail.

Pin1 0.53
Pin1 0.53v
Pin3 2.8v

 

[Perry Babin]

Is the diode or transistor shorted?

 

[imraneesa]

Is the diode or transistor shorted?

Both are good.