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General Category => Amstrad CPC hardware => Topic started by: Bryce on 10:19, 08 September 14

Title: EME-157 Schematics
Post by: Bryce on 10:19, 08 September 14
Hi,
     are there schematics available anywhere for the EME-157 (5V CPC6128+ Disk Drive)?

Bryce.
Title: Re: EME-157 Schematics
Post by: Munchausen on 11:02, 08 September 14
Not as far as I know but I do have one... I can dig it out later and take photos of the board if that's any help?
Title: Re: EME-157 Schematics
Post by: Bryce on 11:32, 08 September 14
I have one here that I'm repairing. Q3 (a reverse polarity protection Diode/Varistor type thing) is blown. I'd like to find out exactly what value this part normally has. The markings don't help (NI1004-06 - Not a valid diode/varistor part No.). I will use a generic part otherwise, but it would have been nice to find the exact part.

Bryce.
Title: Re: EME-157 Schematics
Post by: CraigsBar on 10:50, 19 March 21
Quote from: Bryce on 11:32, 08 September 14
I have one here that I'm repairing. Q3 (a reverse polarity protection Diode/Varistor type thing) is blown. I'd like to find out exactly what value this part normally has. The markings don't help (NI1004-06 - Not a valid diode/varistor part No.). I will use a generic part otherwise, but it would have been nice to find the exact part.

Bryce.

Did you ever find out what part this was @Bryce (https://www.cpcwiki.eu/forum/index.php?action=profile;u=225) ? I have one here with the same part failed. thus no 5v supply to most of the drive. Can you advise what I need to replace it with, other than sabotaging my other [working] EME 157 for it.

Title: Re: EME-157 Schematics
Post by: Bryce on 12:31, 19 March 21
Quote from: CraigsBar on 10:50, 19 March 21
Did you ever find out what part this was @Bryce (https://www.cpcwiki.eu/forum/index.php?action=profile;u=225) ? I have one here with the same part failed. thus no 5v supply to most of the drive. Can you advise what I need to replace it with, other than sabotaging my other [working] EME 157 for it.

High-tech solution: I replaced it with a piece of wire. :)

Bryce.
Title: Re: EME-157 Schematics
Post by: CraigsBar on 13:37, 19 March 21
I might go more technical..... And use a diode!  :laugh:
Title: Re: EME-157 Schematics
Post by: Bryce on 15:31, 19 March 21
Quote from: CraigsBar on 13:37, 19 March 21
I might go more technical..... And use a diode!  :laugh:

That just makes things complicated, with component direction, voltage drop and stuff! :D

Bryce.
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