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Old 26th July 2012, 12:24 AM   #1
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Default Digital Designs Z1

I got this amp off a friend of mine and it appears someone tryed repairing it themselfs..

Im going to rebuild the output driverboard since it looks like a bad reapir

There is a diode missing its marked B2F any ideas on what part number that may be??

I already call DD and they have nothing on the driverboard

The diode goes between the SD pin (pin3) and the COM pin (pin4)
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Last edited by S Merlington; 26th July 2012 at 06:24 PM.
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Old 26th July 2012, 06:24 PM   #2
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Any ideas on what this may be?
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Old 16th August 2012, 02:50 AM   #3
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Ok im gonna rebuild the driverboards in this amp Anyone have a high res pic of the power supply driveroard?
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Old 16th August 2012, 11:17 AM   #4
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What doesn't the amp do that warrants a driver board rebuild?
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Old 16th August 2012, 12:21 PM   #5
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Amp doesnt power up and i can take some pics of the driverboard and you will see why it needs rebuilding..

Both boards have been messed with and well i can let the pics talk for themselfs if u wanna see
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Old 17th August 2012, 01:35 AM   #6
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The SG3525 in this amp has 0 volts on all pins..

What pin or pins should i see 12 volts on ??

Just wondering so i can start tracing the circuit back
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Old 17th August 2012, 03:24 AM   #7
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15 and probably 13.
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Old 11th September 2012, 08:02 PM   #8
WoutRam is offline WoutRam  Netherlands
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Default DD z1

I will check the part number of B2F in my Z1 and will let you know.

Could you, by any chance, figure out the zener-voltage or partnumber of diode D4 on the small PSC-029 (power supply) controller-board in the Z1?
Thanks in advance.

Wout Ram

Quote:
Originally Posted by S Merlington View Post
I got this amp off a friend of mine and it appears someone tryed repairing it themselfs..

Im going to rebuild the output driverboard since it looks like a bad reapir

There is a diode missing its marked B2F any ideas on what part number that may be??

I already call DD and they have nothing on the driverboard

The diode goes between the SD pin (pin3) and the COM pin (pin4)
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Old 11th September 2012, 08:22 PM   #9
WoutRam is offline WoutRam  Netherlands
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Join Date: Nov 2010
Default DD z1

Enclosed a pic of the PSG-029 controller-board in my Z1 with the missing Diode D4. Please let me know type number or zener-voltage.
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File Type: jpg Foto controlprint DD z1.jpg (208.6 KB, 110 views)
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Old 11th September 2012, 08:32 PM   #10
WoutRam is offline WoutRam  Netherlands
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Default dd z1

Sorry, previous picture was wrong one.
Enclosed the pic with missing D4.
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File Type: jpg PWMprint.jpg (605.4 KB, 101 views)
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