Hey guys well I decided since this TVs been floating around on Craigslist for the last year I had some free time yesterday so I decided to pick it up. It was only 25 bucks. I knew what I was in for because I've tried to rebuild these axy1059-d power supplies in the past. I was under the assumption that I was going to find a blown r133 a blown Q 125 and he q127 MOSFET and 5 blinks of the red standby light.
Got it home. I'm getting 2 blinks. This shows as DC converter failure y sustain in the blink chart.
However when I opened it up I have found that somebody already replaced r133 which is supposed to be a .1 ohm with a 10 ohm... and q125 has been replaced. The 10 ohm resistor wasn't even making contact. All has been repaired and I'm still getting the two blinks. Oddly the reason of getting those are because I am NOT getting any 13.5 volt 6.3 volt or -9 volt output everything else seems to want to come up. I have also monitored vsus and even though it does come up to the proper voltage is slow to come up.
This is the dreaded axy1059-d power supply that pioneer had such a problem with.
Anyone that has repaired these power supplies in the past should know that the reason that they blow is because of really shotty SMD soldering on the components around the three output MOSFET transistors labeled Q 125 Q 127. I made sure that I hate all those was fresh solder before I attempted anything else. This board is known to fail in catastrophic ways.
It looks like everything on the bottom primary side is trying to work. Optocouplers seem ok as far as I can tell them. And I'm getting PFC voltage at 390 thereabouts. This unit uses many regulated and non regulated DC voltages along with many DC converters. I have an assumption one is out that controls these three voltages. I'm getting really good 12 volt and good 15 volt and they come right up so that tells me also the PFC circuit is working properly. Anyone worked on these power supplies have any info where to look from here? Thanks and I'll be posting pictures tonight
Got it home. I'm getting 2 blinks. This shows as DC converter failure y sustain in the blink chart.
However when I opened it up I have found that somebody already replaced r133 which is supposed to be a .1 ohm with a 10 ohm... and q125 has been replaced. The 10 ohm resistor wasn't even making contact. All has been repaired and I'm still getting the two blinks. Oddly the reason of getting those are because I am NOT getting any 13.5 volt 6.3 volt or -9 volt output everything else seems to want to come up. I have also monitored vsus and even though it does come up to the proper voltage is slow to come up.
This is the dreaded axy1059-d power supply that pioneer had such a problem with.
Anyone that has repaired these power supplies in the past should know that the reason that they blow is because of really shotty SMD soldering on the components around the three output MOSFET transistors labeled Q 125 Q 127. I made sure that I hate all those was fresh solder before I attempted anything else. This board is known to fail in catastrophic ways.
It looks like everything on the bottom primary side is trying to work. Optocouplers seem ok as far as I can tell them. And I'm getting PFC voltage at 390 thereabouts. This unit uses many regulated and non regulated DC voltages along with many DC converters. I have an assumption one is out that controls these three voltages. I'm getting really good 12 volt and good 15 volt and they come right up so that tells me also the PFC circuit is working properly. Anyone worked on these power supplies have any info where to look from here? Thanks and I'll be posting pictures tonight
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