SONY DHR-1000NP : Problem : No power Already replaced some components in shielded part of power supply : Replaced big capacitors (1500 and 2200 and 680 mico farad) R115 and FET Q101 will always blown up again Any other suggestions please... Thanks in advance

6 red flashes- backlight issue, bad main board, or power board or inverter boards- check standby volts on power board. "backlight on" volts should be 3-5v from main logic board then 24v to inverter


Have this from a youtube link find BUT
Better is to look first also on bad leaking or bulged capacitors thats better to replace in the bad components to get a repair because active components died on bad capacitors but after a while because on the build-in protection circuit by faults like deformed or leaking capacitors and even several fuse resistors then after replace a complete board again after a while you will may be get the same kind of problems again, take If you find some or much bad capacitors replacements 10 volts dc higher . begin with control on the power supply first of all.



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I have just fixed one of these. The problem was C104 inside the metal shielded section of the PSU. It's a 2.2uF 50V capacitor. Sony used an 85?C version rather than a 105?C (which I've used).

SOUNDS TO ME LIKE THE SCREEN IS ON ITS WAY OUT SORRY!

Ur tv have a dying power supply board,that the board where the power a/c cord plug into.U have all the tools and know basic electronic also can do basic soldering work?Yes,take the tv aparts and check the tv power supply board carefully looking for dying capacitors components parts.These dying many capacitors components parts are alway bulges up or puffing up onto it tops.These capacitors parts are slowing leaking and dying to causes the tv to have a unstable managements of power voltages to tv to powering up the tv,unstable power supply board source that why the tv LED power light indicator are flashing.Replaced all these dying and leakages capacitors components parts are bulging ups or puffing ups onto it tops.Replaced all these dying capacitors parts with the same Micro Fared and but it voltages higer like 5 or 10 voltages higher than the old capacitors parts u are replacing.These higher 5 or 10 voltages on the new capacitors parts will help it to with stand heat better than those old capacitors parts u are replacing.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish tv power supply board for the replacement.

Hi,

power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Take care in solving the problem....

The tv turn on now?The tv have flashing LED power light indication or no power at all?Yes.Check the tv power supply board carefully for dying capacitors components parts like for bulging up or puffing up on to it tops.U have all the tools and know basic eclectronic also can do basic soldering work too.Must replaced all these dying capacictors parts are bulging up or puffing up on to it tops should solved this problems.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole new refurbish power supply board for the replacement.

Bulb 1 1/2 or 2 years already?Tv used daily like 4 or 5 hours?Could be the bulb,might not.Check the tv power supply board,that the board,where the power a/c cord plug into it.Look all around the power supply board for dying capacitors parts components.Dying capacitors components are alway bulging up or puffing up on it tops.If is does have it.Than ur tv have power supply board problem.U have all the tools like a soldering iron,desoldering pump or a roll of desoldering braid?Can u do basic soldering and understanding basic electronic?Yes,replace all those dying capacitors,will solved this problems or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Once you take the shield assembly off, you will see a board, I believe it is the DM Board board. There are four Capacitors grouped together probably rated at 35v 1000 mfd, 105 degree. They should be replaced with 35v 680mfd,105 degree Capacitors. Now once that is done, there is another board under that one. This is the Format Board. It also has 4 Capacitors that should also be replaced. They are the same value as the first Board and should be replaced with the same 35v 680mfd, 105 degree Capacitors.
Please note the Flex connectors at the bottom of the DM and Format Boards. They may not be available from Mitsubishi any more so be gentle with them and make sure the are installed properly when reinstalling the Boards back into the chassis. There is one other Board you should look at. The Power Supply Board is the board on the back of the chassis and also has a number of Capacitors that fail. Most all of the Capacitors that fail through out this chassis will have bulging tops. So any you see bulging, you should replace whether they are on the DM, Format , or Power Supply.
I hope this helps,
Skyassoc

Most likely problem is deteriorated electrolytic capacitors. It's been a while since I saw the inside of a DHR-1000, but I do remember replacing several bad caps to bring it back to life.

Recently repaired one of these with what appeared to be a power supply problem; found several defective capacitors on the drive board. The symptoms were similar to what you are seeing.