Hi-Cap problem?
Posted by: Tony Smith on 13 October 2003
As I prepared to leave for work today I played some vinyl and was just about to put on a CD. For some reason I turned off the Hi-Cap instead of the Armageddon but realised immediately and after I turned the Hi-Cap back on nothing happened.
I was starting to run late so only had time to try switching the fuse on the Hi-Cap. No joy.
I've got a separate spur with six sockets and tried the Hi-Cap in another socket. Still No joy. Is there anything else obvious I could try or does this sound serious?
How much is a service likely to cost if it comes to it?
All help gratefully recieved
Cheers
Tony
I was starting to run late so only had time to try switching the fuse on the Hi-Cap. No joy.
I've got a separate spur with six sockets and tried the Hi-Cap in another socket. Still No joy. Is there anything else obvious I could try or does this sound serious?
How much is a service likely to cost if it comes to it?
All help gratefully recieved
Cheers
Tony
Posted on: 13 October 2003 by MJSM
Hi Tony,
Can we assume that the LED on the front of the Hicap is off then ??
It's possible that with the sudden switching, you may have blown the bridge rectifier (actually there are two inside, but only half of each is used), as the surge current is fairly heavy on switch-on (due to the large reservoir caps). The LED (ON light) is usually taken off an otherwise unused half of one of the bridges, so if all of your mains up to the Hicap is OK, and your hicap fuse is good, then the above is possible.
How old is your Hicap by the way ??
Mike
Mike
Can we assume that the LED on the front of the Hicap is off then ??
It's possible that with the sudden switching, you may have blown the bridge rectifier (actually there are two inside, but only half of each is used), as the surge current is fairly heavy on switch-on (due to the large reservoir caps). The LED (ON light) is usually taken off an otherwise unused half of one of the bridges, so if all of your mains up to the Hicap is OK, and your hicap fuse is good, then the above is possible.
How old is your Hicap by the way ??
Mike
Mike
Posted on: 13 October 2003 by Tony Smith
Mike
thanks for your reply. The LED wasn't on and nor was the LED on the 72 it was powering. I tried playing a CD and flicked through the sources just to make sure I had selected the right one. Hi-Cap is second-hand and about 7 years old (I think - I can check the serial no when I go home).
If I do have to send it back to Naim will it get the latest innards and will that be a massive improvement?
Cheers
Tony
thanks for your reply. The LED wasn't on and nor was the LED on the 72 it was powering. I tried playing a CD and flicked through the sources just to make sure I had selected the right one. Hi-Cap is second-hand and about 7 years old (I think - I can check the serial no when I go home).
If I do have to send it back to Naim will it get the latest innards and will that be a massive improvement?
Cheers
Tony
Posted on: 13 October 2003 by fatcat
Tony
Have you checked inside the hicap to see if there are any fuses.
My PSU (Not Naim) has a two fuses inside. One for each transformer.
Regards
Fatcat
Have you checked inside the hicap to see if there are any fuses.
My PSU (Not Naim) has a two fuses inside. One for each transformer.
Regards
Fatcat
Posted on: 13 October 2003 by MJSM
Hi Tony,
Assuming that your mains is good, the LED not being on, together with the LED on the '72', also, almost certainly means that your DC volts is goosed. This could be the rectifier(s), caps, or something worse (regulators) although I would go for the rectifiers first as the LED is the telltale.
Are you 100% sure that the mains supply to your Hicap is good ?? as I recommend that you don't let anyone other than Naim 'tinker' with it, which inevitably means it takes a trip to Salisbury, and befor you do that, we need to be 100% sure.
Email Naim direct for the service costs as this changes every year - I think it is currently about £150 which means that they service it (including fixing it I would say).
The service would include replacing the reservoir caps, and any other components likely to fail in the next ten years (normal service period for power supplies).
You dont get the latest upgrades though, and in any case, I'm not sure that there were any major changes to the Hicap until the most recent series, so it's unlikely that yours could be upgraded, again, ask Naim direct, they are very helpful.
Sorry I can't offer you an 'easy fix' or any consolation other than that you will get a 'like new' Hicap back for about 180 inc p+p (not a bad deal really)
Like I said earlier, make sure you exhaust all other possibilities before you bite the bullet, there is still theoretically three years of 'life' left on yours if it really is only a 7 y.o.
Mike
Assuming that your mains is good, the LED not being on, together with the LED on the '72', also, almost certainly means that your DC volts is goosed. This could be the rectifier(s), caps, or something worse (regulators) although I would go for the rectifiers first as the LED is the telltale.
Are you 100% sure that the mains supply to your Hicap is good ?? as I recommend that you don't let anyone other than Naim 'tinker' with it, which inevitably means it takes a trip to Salisbury, and befor you do that, we need to be 100% sure.
Email Naim direct for the service costs as this changes every year - I think it is currently about £150 which means that they service it (including fixing it I would say).
The service would include replacing the reservoir caps, and any other components likely to fail in the next ten years (normal service period for power supplies).
You dont get the latest upgrades though, and in any case, I'm not sure that there were any major changes to the Hicap until the most recent series, so it's unlikely that yours could be upgraded, again, ask Naim direct, they are very helpful.
Sorry I can't offer you an 'easy fix' or any consolation other than that you will get a 'like new' Hicap back for about 180 inc p+p (not a bad deal really)
Like I said earlier, make sure you exhaust all other possibilities before you bite the bullet, there is still theoretically three years of 'life' left on yours if it really is only a 7 y.o.
Mike
Posted on: 13 October 2003 by quickie
Sorry if this is stating the obvious,but have you checked both the fuse in the plug,and the one in the back of the hi-cap?
Paul.
Paul.
Posted on: 13 October 2003 by Mr.Tibbs
“Sorry if this is stating the obvious,but have you checked both the fuse in the plug,and the one in the back of the hi-cap?”
Sound advice, but my bet is the ON/OFF switch is knackered or its contacts are dirty.
Try flicking the switch on&off a few times – if that fails, turn it on very slowly to see if the unit powers up at a certain switch position – if so you need a new switch. I’d say a dealer could replace a faulty switch without having to return the thing to Naim.
Mr Tibbs
Sound advice, but my bet is the ON/OFF switch is knackered or its contacts are dirty.
Try flicking the switch on&off a few times – if that fails, turn it on very slowly to see if the unit powers up at a certain switch position – if so you need a new switch. I’d say a dealer could replace a faulty switch without having to return the thing to Naim.
Mr Tibbs
Posted on: 13 October 2003 by Tony Smith
Chaps
thanks for your help and I hope I don't sound too ignorant but I didn't have time to check the fuse in the back of the Hi-Cap. Is that an easy job - I've never dared open one before.
Is the fuse a standard type of fuse?
Cheers
Tony
thanks for your help and I hope I don't sound too ignorant but I didn't have time to check the fuse in the back of the Hi-Cap. Is that an easy job - I've never dared open one before.
Is the fuse a standard type of fuse?
Cheers
Tony
Posted on: 13 October 2003 by Rich Jerskey
Similar thing happened to my chrome hi-cap a few times after turning off. It turned out that it was not getting a good solid connection at the DIN input. I remember taking the housing off and checking it out on the inside. I was going to have it in for servicing but my hand maneuverings around the DIN socket evidently was sufficient. It hasn't gone on the blink since. Knock on wood.
Posted on: 14 October 2003 by Sean Woods
Morning Tony
What fuse rating is in your plug?
It should be 13amps.
Sean
What fuse rating is in your plug?
It should be 13amps.
Sean
Posted on: 14 October 2003 by Tony Smith
Gentlemen
thank you all for your replies. I checked the fuse at the back and it looked in tact so I gave Naim a call.
I spoke to Richard and he talked me through what I should have looked for and then suggested I drop it into my dealer for a once-over before sending it in for a service.
My dealer is on standby and I should get some music back soon.
Thanks once again
Tony
thank you all for your replies. I checked the fuse at the back and it looked in tact so I gave Naim a call.
I spoke to Richard and he talked me through what I should have looked for and then suggested I drop it into my dealer for a once-over before sending it in for a service.
My dealer is on standby and I should get some music back soon.
Thanks once again
Tony