Page 1 of 1
schematic for zx350 or why amber light staying on
Posted: Sat Oct 27, 2012 2:39 am
by kedgenz
hay guys did the cap replacements on the zx350 only now instead of a red light now get a amber light
boot up red light comes on then amber light comes on and stays on have all the board and heat sinks and fan assembled back togeather
any body got any ideas
cheers
kedge
Re: schematic for zx350 or why amber light staying on
Posted: Sat Oct 27, 2012 7:42 am
by Eric D
Did the amp work fine prior to the cap replacement?
Re: schematic for zx350 or why amber light staying on
Posted: Sat Oct 27, 2012 9:16 pm
by kedgenz
only the fan would work and no green light was coming on so took apart and seen that rail caps was swolen so thought it may be one of the resons so replaced all 4 rail caps and the other 4 caps from the recommend upgrade values from this site.
have checked all the fets and they look all good
have replaced the ribbon cable on the cross over board as well
what makes the thd light come on
our radio repair guy at work said he could figure it out with a schematic
cheers
kedge
Re: schematic for zx350 or why amber light staying on
Posted: Sun Oct 28, 2012 7:15 am
by Eric D
Check the thermal sensors. I think there are 3 of them on that amp (not certain). One may be bad, and giving a false reading, I have seen this before on other ZX amps.
Re: schematic for zx350 or why amber light staying on
Posted: Wed Oct 31, 2012 9:21 pm
by kedgenz
thanks for the hint will have a look next week
Re: schematic for zx350 or why amber light staying on
Posted: Sun Nov 04, 2012 9:53 am
by JayGold
I may have a similar problem with my 350...when the amp powers up I'm getting a green light and the fan is getting power but not spinning a full 360 degrees continuous. It's intermittently spinning about 15 degrees then stopping only to repeat.
This is my first ZX, can you explain how the fan is suppose to operate when the amp gets power?
Is the fan always suppose to spin?
Any ideas?
Re: schematic for zx350 or why amber light staying on
Posted: Sun Nov 04, 2012 11:23 am
by zeropoint0.5
JayGold wrote:I may have a similar problem with my 350...when the amp powers up I'm getting a green light and the fan is getting power but not spinning a full 360 degrees continuous. It's intermittently spinning about 15 degrees then stopping only to repeat.
This is my first ZX, can you explain how the fan is suppose to operate when the amp gets power?
Is the fan always suppose to spin?
Any ideas?
try to check with another fan.... maybe you just have to replace the fan...do you have another zx... switch fans.....see what happens....
Re: schematic for zx350 or why amber light staying on
Posted: Sun Nov 04, 2012 12:16 pm
by JayGold
zeropoint0.5 wrote:JayGold wrote:I may have a similar problem with my 350...when the amp powers up I'm getting a green light and the fan is getting power but not spinning a full 360 degrees continuous. It's intermittently spinning about 15 degrees then stopping only to repeat.
This is my first ZX, can you explain how the fan is suppose to operate when the amp gets power?
Is the fan always suppose to spin?
Any ideas?
try to check with another fan.... maybe you just
have to replace the fan...do you have another zx... switch fans.....see what happens....
i do have a fan i can steal from a zx450, I'll give that a try.