Digital Designs Z1

[S Merlington]

I checked every compoent on the power supply driverboard and they all check good...

Amp will not power up at all ...

If i Hook 12 volts straight to the VGS pin of the driverboard amp will power up and relays click on...


Audio driverboard is out of the amp at the moment...


Any ideas on what to look for since the amp wont power up until i apply 12 volts to the VGS pin ??

 

[timwebb]

got a picture of the driver board? is the pwm working?

 

[S Merlington]

This amp is probably going in the trash...

I got it off a friend and its seen better days...


Also i cant find the diodes that go on the Audio driverboard

Ive asked about 20 people including Digital designs themselfs and they cant tell me a part number for the diodes ..

I thought i ound the right ones but as soon as i power it up it smokes the power supply fets with thoose diodes in circuit ..


SO unless i can find 2 new driverboards Both power supply and Audio driverboard The amp is Garbage Since half the pads are burnt off and there are jumpers all over the place

 

[timwebb]

depends on how bad it is i might take it as a personal project

 

[Perry Babin]

Have you tried looking up the application notes and datasheets for the driver IC that it's connected to to see if they have a reference circuit that would suggest a diode to use in that location?

 

[luka]

oh man, don't trash it, i would love to work on such amp someday

 

[brunogtspl]

Hi,
I had the starter probeme with the Z1 must be controlled resistors R1 and R3 and the Q1 Q2 2SA1266 2SC1027 and if there is a problem aillor can I put the schematic PWM