Dear forum members,
I'm working on this power supply for ps4 slim, that behaves in a similar manner as other cases but I can't find a way to solve the problem.
When it came to me, externally the ps4 had standby voltage, clicking the disc eject button made the triple beep (without disc inside) and cliking on the power button made the blue power light turn on and then all turned off within 1 second.
When I opened it up, I found these components shorted:
Q6 24N60M2
IC41 1612A (not really shorted but had a hole on it and all pins measured open circuit but the 9th VCC which measured 522)
R39 4.7k
R96 10
R103 0.035Ohm
I took all these ones from an ADP-160CR which has the same part numbers, even if I'm not 100% sure about the revision of the NCP1612, because in the faulty ADP-160FR the hole was just in the silk code area, but seeing images around the internet, I imagine that 1612A could do the work.
Now there are no other shorted components, I veryfied IC32 DAP049B, R1, Q3 and Q4 10N60M2, D11 LTTH806LDW, IC31 DAP046, Q9 3N65M6, IC101 MP6922L, Q101-Q102 6N8R2AL, IC151 DNP012AH, D101 FERD2045, and many other, but the power supply behaves in the same manner, 5VSB present but when I short ACIN_DET and ACDC_STBY nothing happens (not even a single jump on 12v rail or VCC that feeds IC41 and IC32) and 5VSB slowly disappears.
On C1 C2 caps I now have 320v.
No other working ADP-160FR at hand by now, so I can't test if the ps4 has some problems inside, but I looked the mainboard and measured main rails and there are no shorts nor burned components.
If you want, I can write all the measures that I took on different ICs and components...
I know that Q41 is critical in this power supply because it feeds IC41 and IC32 but it's not shorted (well, I didn't unsolder it and measured with external transistor tester, I will do next), it receives 15.10v on collector from IC55 (and feeds D22 then IC31, so 5VSB is created) but zero voltage on base, so on the emitter I measure also zero volt, so IC41 (PFC manager) and IC32 (12v manager) don't receive any VCC.
Well, I'm stuck at this point because I know very little about IC151 DNP012AH, so I don't know how it controls IC55 in order to activate the base of Q41...maybe there is something wrong in another part of the circuit that I didn't see until now, maybe it's not working itself.
Please, can anyone give me some advices?
I'm working on this power supply for ps4 slim, that behaves in a similar manner as other cases but I can't find a way to solve the problem.
When it came to me, externally the ps4 had standby voltage, clicking the disc eject button made the triple beep (without disc inside) and cliking on the power button made the blue power light turn on and then all turned off within 1 second.
When I opened it up, I found these components shorted:
Q6 24N60M2
IC41 1612A (not really shorted but had a hole on it and all pins measured open circuit but the 9th VCC which measured 522)
R39 4.7k
R96 10
R103 0.035Ohm
I took all these ones from an ADP-160CR which has the same part numbers, even if I'm not 100% sure about the revision of the NCP1612, because in the faulty ADP-160FR the hole was just in the silk code area, but seeing images around the internet, I imagine that 1612A could do the work.
Now there are no other shorted components, I veryfied IC32 DAP049B, R1, Q3 and Q4 10N60M2, D11 LTTH806LDW, IC31 DAP046, Q9 3N65M6, IC101 MP6922L, Q101-Q102 6N8R2AL, IC151 DNP012AH, D101 FERD2045, and many other, but the power supply behaves in the same manner, 5VSB present but when I short ACIN_DET and ACDC_STBY nothing happens (not even a single jump on 12v rail or VCC that feeds IC41 and IC32) and 5VSB slowly disappears.
On C1 C2 caps I now have 320v.
No other working ADP-160FR at hand by now, so I can't test if the ps4 has some problems inside, but I looked the mainboard and measured main rails and there are no shorts nor burned components.
If you want, I can write all the measures that I took on different ICs and components...
I know that Q41 is critical in this power supply because it feeds IC41 and IC32 but it's not shorted (well, I didn't unsolder it and measured with external transistor tester, I will do next), it receives 15.10v on collector from IC55 (and feeds D22 then IC31, so 5VSB is created) but zero voltage on base, so on the emitter I measure also zero volt, so IC41 (PFC manager) and IC32 (12v manager) don't receive any VCC.
Well, I'm stuck at this point because I know very little about IC151 DNP012AH, so I don't know how it controls IC55 in order to activate the base of Q41...maybe there is something wrong in another part of the circuit that I didn't see until now, maybe it's not working itself.
Please, can anyone give me some advices?
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