I have been following this thread here: Kicker 083ZX1000.1 output trouble but have only had to repair maybe 3 or 4 kickers so my expierience is next to nill with these.
I have a zx1000 dated 6-1-06. I dont believe this one has a 0 ohm jumper between speaker ground and Ground terminal if that helps.
I have .98 amps when powered and relay engages. It clicks once.
I dont believe the protection light is working but I do see a square wave on the the protect pin.
I have 1.5Vdc between speaker - and speaker +
I do have 1 fet per bank installed because Q105 and Q107 were shorted so I pulled Q106 and put it in Q105.
This amp came with FQA44N30 and I dont have any. The closest I have is FDA69N25 and was unsure if those would work for testing. The gate charge, input capacitance, and rds on were a hair lower than the FQA44n30.
The inductor got so hot that the solder shorted to the drain of that bank. I have a photo attached.
I was seeing drive from the Class d control board. Only seeing 1.6V from ground on control board to R122.
Lifting D7 did absolutely nothing for me.
I have a zx1000 dated 6-1-06. I dont believe this one has a 0 ohm jumper between speaker ground and Ground terminal if that helps.
I have .98 amps when powered and relay engages. It clicks once.
I dont believe the protection light is working but I do see a square wave on the the protect pin.
I have 1.5Vdc between speaker - and speaker +
I do have 1 fet per bank installed because Q105 and Q107 were shorted so I pulled Q106 and put it in Q105.
This amp came with FQA44N30 and I dont have any. The closest I have is FDA69N25 and was unsure if those would work for testing. The gate charge, input capacitance, and rds on were a hair lower than the FQA44n30.
The inductor got so hot that the solder shorted to the drain of that bank. I have a photo attached.
I was seeing drive from the Class d control board. Only seeing 1.6V from ground on control board to R122.
Lifting D7 did absolutely nothing for me.
Attachments
The Inductor L100-85uH is damaged and will need replacing and maybe causing the amp to go in and out of protection.Remove the inductor and power up.
Check the rail voltage,Preamp board and Class D control board header pins. With a scope check U202 Pins 4,9,11 also +/-DRV also on the Class D control board.
If you can't find a suitable replacement for L100 such as a pull from another ZX1000.1 You can try rewinding this core, if not damaged or rewind from scratch. I will look at the BOM and pass on the core and winding specs if available. You will find another thread by rhempz01 where he successfully built another inductor scratch. I don't recall what Kicker amp it was.
The link below is a source for the FQA44N30
FQA44N30 ON Semiconductor / Fairchild | Mouser
Check the rail voltage,Preamp board and Class D control board header pins. With a scope check U202 Pins 4,9,11 also +/-DRV also on the Class D control board.
If you can't find a suitable replacement for L100 such as a pull from another ZX1000.1 You can try rewinding this core, if not damaged or rewind from scratch. I will look at the BOM and pass on the core and winding specs if available. You will find another thread by rhempz01 where he successfully built another inductor scratch. I don't recall what Kicker amp it was.
The link below is a source for the FQA44N30
FQA44N30 ON Semiconductor / Fairchild | Mouser
I pulled the inductor surprising tested fine but i am sure its probably not 100%. It did measure 84uH. I ordered a new core anyways from the link you suggested
I was able to fix it based off your previous post with rhempz.
Q102 2sd699 was bad. It was causing 7volts on D106 the 11v zenner. Replaced zenner thinking it was bad that didn't help.
Replaced Q102 amp powered up with one fet per bank of the FQA44N30's.
I was able to capture the waveforms of the drive, stuck some new FDA69N25's in and the waveforms were identical. Load tested the amp with a 2 ohm load for several hours and did fine.
Thank you for all your help on these posts even indirectly. I have learned a lot.
Post containing inductor information for future reference:
Kicker zx1000.1 (P083ZX10001-A) 2007 model
I was able to fix it based off your previous post with rhempz.
Q102 2sd699 was bad. It was causing 7volts on D106 the 11v zenner. Replaced zenner thinking it was bad that didn't help.
Replaced Q102 amp powered up with one fet per bank of the FQA44N30's.
I was able to capture the waveforms of the drive, stuck some new FDA69N25's in and the waveforms were identical. Load tested the amp with a 2 ohm load for several hours and did fine.
Thank you for all your help on these posts even indirectly. I have learned a lot.
Post containing inductor information for future reference:
Kicker zx1000.1 (P083ZX10001-A) 2007 model
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