Solution required for decreasing turn on delay time for my amplifier HK6500

[Shailesh Dhodia]

Hi Mates,

Pls ignore my previous thread since I am not able to edit the title.

I have a Harman/Kardon HK6500 stereo amplifier. It must be about 20 years old. With aging the turn-on delay time for the amplifier is increased i.e. when I switch on the amplifier it takes around 1.5 minutes to turn on. My suspicion is that it might be because of the capacitors taking time to get charged.

However, the sound quality is second to none. Please advise me as to what needs to be done to reduce the delay. If reducing the delay will affect the sound quality then I am ready to bear with the delay (Hope the delay will not cause problems to the other parts of the amplifier). It's the sweetest sounding amplifier that I have come across and would not like to tinker with the sound quality.

 

[kanwar]

Check C11 33uF and C10 4.7uF cap for DC leakage, replace it. It will correct the delay if the condition is due to delay circuit only. It has no effect on sonics.

 

[Shailesh Dhodia]

Thanks a lot

 

[Shailesh Dhodia]

Kanwar,

Worst case scenario if I am not able to fix the delay problem will it damage my amp?

 

[kanwar]

Thanks a lot

Kanwar,

Worst case scenario if I am not able to fix the delay problem will it damage my amp?

No it will not damage the amp.

 

[Shailesh Dhodia]

Thanks Sir,
A treat awaits you on your visit to Baroda hyeah:

 

[kanwar]

Do update us, if it gets solved.

 

[Shailesh Dhodia]

Sure Sir, I would definitely let you know