I need to replace the 220V On/Off switch at the NAD 7255PE receiver.
How can I find a replacement for this 220V On/Off switch?
What is the catalog number of this 220V On/Off switch?
How can I find a replacement for this 220V On/Off switch?
What is the catalog number of this 220V On/Off switch?
Is it a momentary or locked switch?
Lots of on Ali or ebay.
Some nads can even use switch from AT computer cabinet...
The receiver is ~40 years old so you won't find any new spare parts with catalog numbers for a specific model receiver like this NAD. There are still general purpose, 2 pole mains rated slider switches available from electronic component sellers globally but they are likely smaller overall and you need to check the dimensions, pin spacing etc. to determine for yourself whether they will fit or there is a need for extra contacts, as on some other remote controllable NAD models.
According to some repairer forums and Ebay parts sellers, the switch does have a separate section for switching alternately between between remote and local control. If that's the case, this won't be easy to replace and I think it would be better to repair it, assuming you have some skills there or a friend who can at least guide you through the process. Some NAD power switches were quite complex and will need to be rebuilt properly unless you can find a donor wreck amp. that still has a working switch in good condition or perhaps the metal contacts can be replaced with unused ones.
According to some repairer forums and Ebay parts sellers, the switch does have a separate section for switching alternately between between remote and local control. If that's the case, this won't be easy to replace and I think it would be better to repair it, assuming you have some skills there or a friend who can at least guide you through the process. Some NAD power switches were quite complex and will need to be rebuilt properly unless you can find a donor wreck amp. that still has a working switch in good condition or perhaps the metal contacts can be replaced with unused ones.
7225 has an simple alternate push action, single pole switch on the front panel and connected with brown/blue leads. That could be replaced by any of several available from Chinese parts sellers. 7255PE PCB layout diagram shows it was mounted on the PCB and may be a more complex 2 x 2-pole, 2 section switch to manage the remote switching as well. Since there were several versions, I think it will be difficult to be certain which type is required without the OP's visual inspection.
If the OP would kindly open the case, look at the switch and describe what is there, where it is mounted and how connected, how many pins etc. in detail, it might save a lot of guesswork.
If the OP would kindly open the case, look at the switch and describe what is there, where it is mounted and how connected, how many pins etc. in detail, it might save a lot of guesswork.
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You are likely right Oggi, about 7255PE model being a mistaken identity. There were several versions of 7225PE too.
See the TV parts section too, some were common in CRT TVs, plain as well as those with an extra block for remote.
In the in position, a set of auxiliary contacts would tell the unit the power switch was on.
My advice is to keep the mains off when not in use, saves power, and the unit surge damage.
In the in position, a set of auxiliary contacts would tell the unit the power switch was on.
My advice is to keep the mains off when not in use, saves power, and the unit surge damage.
