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View topic - known issue, dvp-ns999es power supply failure?

known issue, dvp-ns999es power supply failure?

This forum addresses questions on installation, configuration and troubleshooting you might encounter with your Sony DVD player.

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by sony_fanboy » Sat Aug 22, 2009 5:27 am

hi,

the power supply has failed 4 times in my dvp-ns999es. upon inspection there is a bad 1500uf cap in the regulation. when testing, the whole board is fried.

the unit will light up extra bright for 4 minutes before failure. than no power.

i always leave the unit on 24/7. sony claims the fix is to shut the unit off when not in use or set "power saving". i am trying that this time but i do think a player like this should be able to be left on.

i was wondering if this is a known issue and if there is a fix for it?

thank you.
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by jehill » Sun Aug 23, 2009 3:53 am

Welcome to Agoraquest!  Sorry to report that issue has not been identified by Sony.
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by sony_fanboy » Sun Aug 23, 2009 5:40 pm

thank you for responding. i don't know why mine keeps breaking. according to sony it is because i was leaving it on 24/7. i now have power saving on so i will see.
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by smholl » Mon Oct 05, 2009 2:11 pm

I am currently having the same power supply problem on my DVP-NS999ES. I replaced the 1500uf capacitor (it was bad) and checked the thermal fuse (tests okay). Still no power, red power LED not lit. What else can I do?
Thanks for any help.
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by jehill » Wed Oct 07, 2009 8:35 pm

Welcome to Agoraquest!  My gut feeling is that if anything is going to fail on the regulator board, its IC101, the switch that applies power to T101.  If possible, I would take voltage readings on CN201.  Here is the CN201 pin out:

1.   SW+8V (SW=SWITCHED
2.   P-CONT (POWER CONTROL)
3.   SW-8V
4.   EVER+3.3V (EVER=PRESENT IN STANDBY)
5.   SW+3.3V
6.   SW+3.3V
7.   SW+5V
8.   EVER+5V
9.   D GND
10. M_GND
11. M_GND
12. SW+11V
13. SW+11V

The pin 4 and 8 voltages should be present as long as the unit is plugged in.  Voltages should be measured referenced to Pins 9, 10 or 11.
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by smholl » Thu Oct 08, 2009 6:12 am

Thanks much for the info. I will test later today.
Could you possibly supply part number for IC101? Is this part still available?
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by smholl » Thu Oct 08, 2009 9:53 am

Tested at CN201. Pin 4= 0V,   Pin 8= 2.7V.
So, is IC101 bad??

I appreciate the help.
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by jehill » Sat Oct 10, 2009 3:26 pm



Its difficult to say.  If it were me, the next thing that I would do is measure the DC voltages from the output sides (side not connected to T101) of D201 (+8V), D301 (+11V), D401 (+5V) and D501 (-8V) to the chassis.  This information should narrow the problem down.  If you are getting 2.7V instead of 5V at Pin 8.  I would expect all of the voltages to be about half of what they should be.
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by smholl » Sat Oct 10, 2009 8:07 pm

jehill - Thanks so much for all the info, but this is getting beyond my very limited expertise. I think I also blew out the thermal fuse, not getting any continuity throught it. Maybe I could locate a complete power supply board for a reasonable price. I really don't want to put a whole lot of money into this. I was only using the 999ES for SACD.

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by sony_fanboy » Sat Jan 30, 2010 4:25 am

it has now been 5 times that the power bloc(psu board) has been replaced in my dvp-ns999es.
i was wondering if anyone has any idea why this is happening to me? i read the other post in this thread. i also saw somewhere on the net that someone else had these issues. i guess this is rare. i wish i could figure out what was causing it. originally i left my power on 24/7. sony told me to put it on auto off. it blew out again anyways. if there are any steps i can take to prevent this i'd appreciate to know. now that the warranty is ending i was wondering if there is a source for me to get the psu boards.

i still enjoy this machine as a very good sacd and redbook spinner.

thank you
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