1 No solid red light when on Standby
I bought this PS3 with the YLOD. After diagnosing, I tracked down fuse F6001 and Capacitors C6019 and C6020 as the culprits. Replaced them and bam, solid green light and about a weeks worth of use. I left it on standby in the morning yesterday and saw the solid red light (as has been the last few days).
However, when I came back that evening, the red light had gone. I was gutted. There had been no power cuts and it's plugged into a surge protector so I have no idea what happened.
I did some diagnosing of the fuses as I tried another PSU, tried a different ribbon cable for the power on/eject buttons, also switched the socket with the switch on the back but there's still no lights, and a different power cable. I found that a fuse was dodgy as well as a capacitor on it's line in the schematic. I replaced those as I had the parts available.
Sadly when it came to seeing if it worked, the lights still didn't appear. The 5V pins on the PSU connectors look to be ok. Now i'm not sure where to look and am absolutely gutted it's not lasted longer. If anyone can provide any suggestions, I'd be grateful. It's the C03 model by the way.
Edit: I checked the connection between the on/off and eject board. The left most pin closest the PSU is 5V and then the second most left is 5V but counts down. If I keep the pin in the motherboard socket and move the other multimeter prong across the back of the pins on the small board, I can get the red, green, and blue light to flicker intermittently and not all at once, except the green and red on occasion.
Cette question est-elle utile ?
Hi Josh! Did you also checked the power switch on the back? I had one which was having issues causing it to be on and off sometimes.
par koppie007
@dan0 Hi Dan, thanks for the reply. I have made sure it’s switched on, if that’s what you mean. I’ve also switched the unit with a spare one I have but the result is the same.
par Josh
Hi Josh!
Sorry for the confusion. I mean the actual power switch. Sometimes that one fails electronically and could cause the red light preventing for turning on. But you already replaced that one? As long as the power supply is fine, it must be something on the motherboard...
par koppie007
@dan0 ah, that’s worth knowing thanks. My guess is it’s something else on the motherboard seeing as the PSU is fine. Would it most likely be fuses or capacitors, maybe a combination of both, that would cause this? I did also see that CR2032 battery’s when dead can prevent powering on, however, seeing as I had forgotten to plug mine back in initially, I doubt that’s the issue. I’m trying to deduce where the standby line is in the schematic.
Do you have any suggestions of what to test next? It’s had two faulty fuses and three capacitors replaced.
par Josh
No problem! Probably a cap which is causing this. Do you have a capacitor tester? With this you can test them to see if they are still giving the values it need. YLOD is most of the time caused by the APU. Is the APU still doing fine? You could try a reflow for the components too see if this will get it back working. You can also measure if the CR2023 battery is full or not (easiest to check this first).
Good luck!
par koppie007
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