The identifiers are not matching the 1200 diagram but the values are probably right.
I have a Kicker KX600.1 amp here that has a 47ohm in R277 and a 102 cap in C217.
So my 105 cap is wrong then? I'll change it to a 1000pf cap.
I have a Kicker KX600.1 amp here that has a 47ohm in R277 and a 102 cap in C217.
So my 105 cap is wrong then? I'll change it to a 1000pf cap.
Not sure if this helps, but I believe I have the same amp in working condition sitting on a shelf here. Here is a photo I snapped of the area it appears your working on. Let me know if there is anything I can I do to help.
R134-47 ohm 2w
C109,C66 -10uf 200v NP
C108-1nF 630v
This amp has a unique topology and is unlike the KX1200.1 or KX600.1
Post pics of this board and main board. If you get a solid overall I can point out some test points.
Inspect the class D control board (holds the LM361). Look for L200. Is there an inductor there, or just a trace? The ZX1000.1 and ZX1500.1 share the same control board with some minor differences. The inductors being one difference. This is part of the feedback loop, which appears to be open and causing this issue.
If shorting pins 6&7 on the U200 which bypasses the opamp and essentially the feedback loop, allows drive to the output mosfets the amps Class D control, drivers and outputs are good.
Inspect the class D control board (holds the LM361). Look for L200. Is there an inductor there, or just a trace? The ZX1000.1 and ZX1500.1 share the same control board with some minor differences. The inductors being one difference. This is part of the feedback loop, which appears to be open and causing this issue.
If shorting pins 6&7 on the U200 which bypasses the opamp and essentially the feedback loop, allows drive to the output mosfets the amps Class D control, drivers and outputs are good.