Author Topic: CPC 464 headphone socket  (Read 2154 times)

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Offline ivarf

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CPC 464 headphone socket
« on: 01:28, 30 August 12 »
I am reading the book Classic Videogame Hardware Genius Guide which is a good read. There the headphone socket  is mentioned. Supposedly early 464s didn't have this port. This is new to me. Can anyone confirm?

Offline Bryce

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Re: CPC 464 headphone socket
« Reply #1 on: 10:39, 30 August 12 »
I doubt that is correct. If you look here: http://www.cpcwiki.eu/index.php/File:GA_motherboard.JPG you'll see that even the 464 prototypes had the sound out socket.

Bryce.

Offline ivarf

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Re: CPC 464 headphone socket
« Reply #2 on: 11:19, 30 August 12 »
Thanks! Never trust a journalist  ;)

Offline unholy

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Re: CPC 464 headphone socket
« Reply #3 on: 06:44, 02 September 12 »
Actually, I just stumbled upon this thread trying to find out why my 464 does not have an external sound connector... There is a 3.5mm jack, but it's NOT a sound-out port.

Offline Badstarr

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Re: CPC 464 headphone socket
« Reply #4 on: 15:26, 02 September 12 »
Are you sure there isn't a fault with it? My dad had one of the very first 464s and that definitely had the headphone socket. Is your 464 one of the early models or one of the later ones? I can't think of any reason why Amstrad would have installed an identical socket but use it for another purpose.
Proud owner of 464 GTM64 6128 GTM65, GX4128 and a 464/6128 Plus Hybrid a 20 year long ambition realised! :-)

Offline Bryce

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Re: CPC 464 headphone socket
« Reply #5 on: 16:03, 02 September 12 »
The only 3.5mm socket ever on a 464 was the sound port (It's beside the joystick port). It's also very difficult for this to be broken, unless the AY is broken and you're getting no sound at all? Otherwise there are only a few resistors in between, that I doubt could be damaged, unless someone has removed them.

Bryce.

Offline Gryzor

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Re: CPC 464 headphone socket
« Reply #6 on: 14:52, 03 September 12 »
Unholy (welcome!), bear in mind that this port is not amplified, it's meant to be used with an amp, not headphones. Make sure you turn the volume as high as it can get and maybe have it in a quiet room to be sure


As for the Genius book... not so genius, eh? :D

Offline Bryce

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Re: CPC 464 headphone socket
« Reply #7 on: 15:11, 03 September 12 »
The Amstrad volume knob has no effect on this output.

Bryce.

Offline Gryzor

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Re: CPC 464 headphone socket
« Reply #8 on: 15:17, 03 September 12 »
You, Sir, are right. Must have been the memories of trying to raise the volume as a kid :D

Offline unholy

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Re: CPC 464 headphone socket
« Reply #9 on: 03:58, 07 September 12 »
bear in mind that this port is not amplified, it's meant to be used with an amp, not headphones.

Yeah... I figured that out... eventually. Turned out the volume level in the headphones was so low, it was effectively drowned out by the internal speaker. Plugged in a pair of powered PC speakers and all is well--except I feel like a right idiot.

Offline Bryce

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Re: CPC 464 headphone socket
« Reply #10 on: 10:22, 07 September 12 »
Every time we learn something, we're a little less of an idiot than we were yesterday. So you should actually feel much better :)

Bryce.

Offline Gryzor

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Re: CPC 464 headphone socket
« Reply #11 on: 15:02, 07 September 12 »
Wow, wish I actually remembered that quote every time I feel like an idiot. You can feel the wisdom oozing from within.