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Help with Icepower 1200as2 amp please!

Hello everyone! I am having an issue with my Icepower 1200as2 module. I have ran this amp for a few years and all of a sudden it starts going into a standby mode, then comes back on for a little while, then back to standby even when a signal is passing through. When I first built this DIY project using the 1200as2 module, I hooked up 2 LEDS on the front of the chassis. When first powering up the amp, the amber LED would light up until a signal was picked up through the RCA interconnects circuitry?  So if I wasn't playing anything through the amp, the amber LED would light up and stay on until a signal was detected. I really don't want to trash the module, so if I can get some help to perhaps fix this issue, I'd be very grateful and appreciative! Thanks for any help!

Best,

Jacques

jacquesw

Showing 5 responses by erik_squires

erik_squires
15,750 posts
 

I have a Hypex waiting for a cabinet, but honestly I really like the ICEpower AS series and think they are underrated

erik_squires
15,750 posts
 

OP:
 

It sounds like you are a beginner to this and this may be a bad way to get your feet wet.  Please be careful as there are some lethal voltages in there. 

Honestly I wish you'd learn more from other projects than this one. 

Best,

 

Erik

erik_squires
15,750 posts
 

Take a look at page 7, table 5.2. 

It lists P101-6 as being the standby signal.  When that is high it enables standby mode.  P101-10 is the mute feature.

If either of those signals go high it can disable the amp.

I'd start by measuring what is happening there.  Also, consider DIYaudio they have a great community of builders.

erik_squires
15,750 posts
 

I do have that icepower manual but not sure what I am looking for on it? The amp module was working fine for years, and all of a sudden, it started going in and out of ON and Standy modes.

 

First understand your device. Is there a switch or jumper cable used to tell it to be in stand by mode? If so, check that and make sure it’s clean. Alternatively disable it so it’s always on.

In other words, the first thing to troubleshoot is the switch/jumper which enables auto mode.  A dirty jumper, or bad switch or wire can make this misbehave. 

erik_squires
15,750 posts
 

Get the spec sheet  (really a manual) from here:

https://shop.icepoweraudio.com/product/1200as2/

 

Then see how this audio sending is enabled or disabled.  It's either a jumper or switch that needs to be right.  May be dirty or not working.  Try disabling it to see if that fixes it.  If it's still going into standby mode, disconnect your amp output to ensure you don't have a short in the speaker cable or speaker.

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