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[UPDATE] monitor died. bad power board?

post #1 of 21
Thread Starter 
I have this Samsung monitor that started acting funny and now just won't work. It all started with this strange flickering that would eventually go away. Now when you turn it on the power button glows but the screen shows nothing. I can hear a slight whine from the power board as it tries to power up but then it quits.

Does this sound like a bad power inverter? I'd like to save myself some money and fix it but I want to make sure I have the right diagnosis.

Thanks!
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My System
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CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
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Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
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post #2 of 21
Most common failure for monitors or TV's is usually bad or popped capacitors. I would crack it open and look for bulged or popped caps.
post #3 of 21
Yeah definitely sounds like bad capacitors as the power light still comes on. These are usually a simple fix with a capacitor kit bought off ebay and some soldering skills.
 
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Western Digital 300GB VelociRaptor Arctic Cooling Freezer 7 Pro Windows 7 Ultimate x64 (2) Acer 22" LCD's 
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post #4 of 21
Quote:
Originally Posted by benben84 View Post

Yeah definitely sounds like bad capacitors as the power light still comes on. These are usually a simple fix with a capacitor kit bought off ebay and some soldering skills.

Don't buy a kit unless it is for your specific revision power board after you crack it open. Manufacturers DO change the voltage/rating of their components in different revisions.
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Re"NAS"cent
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post #5 of 21
Thread Starter 
I did open it up and have a quick look around but the power board was under another shield and I didn't take that apart. I'll have a closer look later and see what I can find.

So I should be looking for buldging/popped caps? anything burnt? what else?
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
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My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
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post #6 of 21
Quote:
Originally Posted by DBEAU View Post

I did open it up and have a quick look around but the power board was under another shield and I didn't take that apart. I'll have a closer look later and see what I can find.

So I should be looking for buldging/popped caps? anything burnt? what else?
Usually just caps, they are no longer flat on top. And the above person is correct, make sure if you buy a kit that it is for the exact revision of board you need them for.
 
Quadcore P182
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 ASUS P5E64 WS Evolution X48 Gigabyte GeForce GTX 560 Ti Kingston HyperX 8GB DDR3 1600 
Hard DriveCoolingOSMonitor
Western Digital 300GB VelociRaptor Arctic Cooling Freezer 7 Pro Windows 7 Ultimate x64 (2) Acer 22" LCD's 
PowerCase
PC Power & Cooling S75QB 750W Antec P182 Gunmetal 
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Reply
 
Quadcore P182
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 ASUS P5E64 WS Evolution X48 Gigabyte GeForce GTX 560 Ti Kingston HyperX 8GB DDR3 1600 
Hard DriveCoolingOSMonitor
Western Digital 300GB VelociRaptor Arctic Cooling Freezer 7 Pro Windows 7 Ultimate x64 (2) Acer 22" LCD's 
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PC Power & Cooling S75QB 750W Antec P182 Gunmetal 
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Reply
post #7 of 21
Thread Starter 
Can I just buy whatever caps need replacing from say radio shack?
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
  hide details  
Reply
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
  hide details  
Reply
post #8 of 21
Quote:
Originally Posted by XAslanX View Post

Most common failure for monitors or TV's is usually bad or popped capacitors. I would crack it open and look for bulged or popped caps.

what this guy said. ^ Have definitely repaired a number of them. One of the reasons i use dead electronics for, spare capacitors.
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post #9 of 21
Quote:
Originally Posted by DBEAU View Post

Can I just buy whatever caps need replacing from say radio shack?
As long as they have the ones you need, I find they never have the correct ones. Once you are able to look at the board you'll find the numbers needed on the capacitors.
 
Quadcore P182
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 ASUS P5E64 WS Evolution X48 Gigabyte GeForce GTX 560 Ti Kingston HyperX 8GB DDR3 1600 
Hard DriveCoolingOSMonitor
Western Digital 300GB VelociRaptor Arctic Cooling Freezer 7 Pro Windows 7 Ultimate x64 (2) Acer 22" LCD's 
PowerCase
PC Power & Cooling S75QB 750W Antec P182 Gunmetal 
  hide details  
Reply
 
Quadcore P182
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 ASUS P5E64 WS Evolution X48 Gigabyte GeForce GTX 560 Ti Kingston HyperX 8GB DDR3 1600 
Hard DriveCoolingOSMonitor
Western Digital 300GB VelociRaptor Arctic Cooling Freezer 7 Pro Windows 7 Ultimate x64 (2) Acer 22" LCD's 
PowerCase
PC Power & Cooling S75QB 750W Antec P182 Gunmetal 
  hide details  
Reply
post #10 of 21
Thread Starter 
What do you think?




My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
  hide details  
Reply
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i7-2600k @ 4.6ghz Gigabyte Z77X-UD5H Zotac GTX 970 w/ Heatkiller 16GB G.Skill Ares (2133) 
Hard DriveHard DriveCoolingOS
Samsung 830 256GB Samsung 840 500GB XSPC Raystorm / RX240 / UT60 / D5 W7 Home Premium 64 
MonitorKeyboardPowerCase
X-Star DP2710 1440p CM Quickfire TK (browns) Seasonic X-660 NZXT Switch 810 
MouseAudioAudio
Zowie ec1 evo Creative Soundblaster Z Sennheiser HD558 
  hide details  
Reply
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