Pioneer gm-d9601

[Aqeeb127]

Im struggling with the regulated voltaged to read it as i cannot find the proper ground reference

 

[caraudioguy2100]

IC707 place black probe on first leg red probe on 3rd leg

IC706 place black probe on middle leg red probe on 3rd leg

IC705 black probe on middle leg red probe on 3rd leg

IC703 black probe on the tab of the regulator red probe on leg 3

IC704 black probe leg 1 red probe leg 3

What are the voltages you get on all of those measuring as described

 

[Aqeeb127]

I will check later as its 1 am now and i have to be on the road at 5am

 

[Aqeeb127]

Ic 707 = -14.7v
Ic 706 = 14.9v
Ic 705 = 11.9v
Ic 704 = 0.725v
Ic 703 = 14.9v

SORRY FOR THE LATE REPLY ITS JUST THAT I WASNT AT HOME TO CHECK IT OUT

 

[caraudioguy2100]

Something doesn’t appear right with your measurements.

IC703 should be 5 volts not 14

Also you are missing the voltage on IC704

Once I get home I will recheck the amp and tell you what to measure

 

[Aqeeb127]

Sure man i get 5v when i probe pin 1 and 3 if i remember correctly

 

[Aqeeb127]

I get dc on the speaker terminals even. When the irs2092s is removed so could that be the cause of no sound and i do get sound up until the input of the irs2092s

 

[caraudioguy2100]

How much DC are you getting across the speaker terminals and is is positive or negative voltage ?

 

[Aqeeb127]

Approximately 1.8v but as soon as i connect a load the voltage drops and on ic 703 i get 5 volts on pin 1 and 2

 

[Aqeeb127]

Caraudioguy2100 can you perhaps tell me the voltages on the irs2092s using the irs2092s ground as the ground reference

 

[caraudioguy2100]

The amp I have here is not working .

Did the driver ic get damaged when installing it ?

The ic’s are easily damaged if you apply to much heat to them when installing .

 

[Aqeeb127]

I dont know if it got damaged but i will buy another one and retry

 

[caraudioguy2100]

Pull the ic and check all the regulators again as mentioned and see if all the voltages appear correct .

And see if the dc on the speaker terminals goes away .

When soldering the new ic use low heat and be quick when soldering also touch the pads with your iron not the legs of the ic .

 

[Aqeeb127]

The dc dropped when i removed the ic and only 1 regulator dont make sense to me the 5 volts are on pin 1 and 2

 

[caraudioguy2100]

What ic number are you referring to

 

[Aqeeb127]

Ic 703

 

[Aqeeb127]

The two 5 volt regulators are giving the voltage on different pins i will check later to tell the exact pins

 

[caraudioguy2100]

What’s the number on ic703

 

[Aqeeb127]

78l05

 

[caraudioguy2100]

Place your black probe on middle leg and red probe on leg 1 as seen in the phot what’s the voltage you get