Having problems with your Samsung SyncMaster 930B 19" LCD Flat Panel Monitor ?

Possible power supply burnt out

\015 So my Sansung 930b just gave a blank screen today and the button led blinks very dimly. From what a few others have posted, it seems this is probably a power issue. I opened up my case and found this on the power board:http://img266.imageshack.us/img266/6135/930b2fr0.jpghttp://img530.imageshack.us/img530/203/930b1pe6.jpg2nd picture is a closer look at the chip that burnt. On the other side of the board, there's a small brown smudge from the burn and the outside of the chip is fire scarred. I tried reading the number off the other (hopefully) identical 8 pin chip right nearby but from what I can make out:45020AASH0Any of those 4's could be A's, 5's S's and 0 O's (and vice versa).Yeah I took out the plastic, I still can't see the chip # and trying multiple combinations of the above didn't yield anything. I was able to find 1 person selling the IP-35135b power supply but it's reasonably expensive at $55.Does anyone know if there's another way for me to find and replace just the chip? If not, judging from the picture and a description of the powered on behavior, does it sound like the power supply is the thing to replace? Thanks for your time.\015

Answers :

I've been hacking on a few of these monitors at work... we have a bunch that are dead... I have not seen this particular chip burnt (yet), but have been replacing a lot of the capacitors. To confirm the chip ID numbers you were looking at, I saw 4502C & AA5N0, and yes, they're both the same. If it comes to the caps, they should all have a flat top... if any are domed or black or sooty on the top, that is a good indication it is bad. Hope you had good luck with this. I can/t help with replacing just the chip.
Repair Help & Product Troubleshooting for Samsung SyncMaster 930B 19" LCD Flat Panel Monitor

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Possible power supply burnt out


I've been hacking on a few of these monitors at work... we have a bunch that are dead... I have not seen this particular chip burnt (yet), but have been replacing a lot of the capacitors. To confirm the chip ID numbers you were looking at, I saw 450 ... Samsung SyncMaster 930B 19" LCD Flat Panel Monitor

Dell Desktop (Optiplex 745) couldn't run


This could be a bad power supply. When turned on do you hear any fan noise from the power supply. If not check and see if the power supply looks dirty of has a burnt smell. This could indicate a bad power supply.If the power supply is working, check ... HP (228513001) Fan Kit

Dell 20 Hi my dell lcd monitor won't gon after i saw a smoke . I open it and don't see anythink burnd bye Dave


Dear Tirat\015\012\015\012Hello Dave, well unfortunately your problem here is not going to be all that easy to resolve as components that burn out are not always visable to the naked eye. However, there are logical methods of approach tha ... Dell 2000FP 20.1" LCD Monitor

Power failure for HP Pavilion A6600F


>> I might have to test an alternative power supply to rule out the existing power supply. \015\012\015\012That should be your next step. Just connect the "temporary" power-supply to the motherboard and the fan on top of the CPU. ... HP Pavilion a6600f Desktop PC

Speakers not working


Hi,Most computer speaker system will indicate power when switched on. The on switch could be a push button type or rotary built-in to the volume control. There are however models that are automatically powered on once plug to the mains. ... Harman Kardon HK19.5 Computer Speakers

Power Surge damage. Suggestions on which part to replace.


I would start looking at the power supply, it's usually a separate board where the a/c line plugs into. In many cases i have seen that the problem you described is from a damaged power supply, sounds like something is shorting causing the power supp ... Proview PL713S 17" Flat Panel LCD Monitor

No power in my Daewoo Monitor


Hi,\015\012\015\012Youo have zeroed in on the problem area. It looks like a power supply problem. More often than not, there is a fuse inside. If you would venture to open the unit up, do a visual check on the fuse. If it is busted:\015\0121. Clean - ... Daewoo F227B Monitor

Two months old dead no power


Hi there,Check the Power cable of your PC for any damaged or burn/cut. Firmly check the connection on the slot of the CPU Power Supply,Check the Electrical outlet , or better plug the cord on a different electrical outlet. ... ASUS PC Desktops

Computer not starting, i have a Dell Dimesion 8250


It could be the power switch itself, in which case you can probably get a refurb switch from Dell for about 10 bucks. There is a way to bridge the switch connection at the motherboard and boot up if the switch itself is what has gone bad. You'll hav ... Dell Dimension 8250 PC Desktop

Power Surge damage. Suggestions on which part to replace.


Power Surge damage. Suggestions on which part to replace?\012 This trouble maybe power supply or inverter boards is defective.\012 first you can test the voltage of the multr,and then check which part is defective.From Wisiny.com can find those p ... Computer Monitors

Black screen flashes after initial power up


This happened to me, and I fixed it, so read on! Switch on... green LED for a couple of seconds, Brief flash of light with display working, the total shutdown. Switch off, repeat but press the front panel power button as soon as the green LED comes ... Sony SDM-HS73P 17" LCD Monitor

I have an HP765 pavilion with a burnt out power supply. I have alot of information on the hard drive. What specific parts would I need to remove and what are my possible choices for data transfer besides to another tower? I may want to just use my laptop going forward. I also have a nice monitor that should still work.


If you are certain that it is only your power supply, you should be able to replace the power supply and the Pavilion should work again.\015\012\015\012On the other hand, you can hook the hard drive up to another functioning desktop PC, u ... HP PC Desktops

Going to Sleep


Due to the power surge, it is highly possible that the monitor was given a boot by your computer on it's way out.\015\012\015\012This will short out a very small transistor inside the monitor on the video board and in turn, then monitor c ... HP Pavilion F1903 19" Flat Panel LCD Monitor

LAPTOP /no power


It states you are not getting no power on your lap top computer :\015\012\015\012No power or computer does not turn on\015\012Cause:\015\012\015\012No power from the computer can be caused by any of the below possibilities.\015\012 ... Toshiba Satellite M40-S417TD Notebook

Lcd turns off when i connect power supply to my laptop


First it sounds like where the ac adapter connects through at has possibly burnt out some locations on the motherboard, if I were you I would keep this part of the system turned off as much as possible until you get it looked at by a technician, a te ... PC Laptops

Does it need the battery to run while plugged to the a/c ( wall)


I'm assuming you have a laptop. check connections to the power cord.\015\012\015\012laptops do NOT need a battery in to run. \015\012\015\012if it won't start without the battery in it, your power supply has issues. possibl ... PC Desktops

Have a Dell XPS 200. Computer was on overnight when our power went out and then came back on. It was plugged into a power strip with surge protector. Now it will not turn on, no power, no lights, no fan comes on. It's just dead. Unplugged it, plugged directly into wall, turned the switch on the back of & on. NOTHING. What could cause this? Power supply, mobo? Could the bios battery cause this? Thanks!


Most probably, the fuse in the power supply has been burnt out when the power came back. Surge protectors only protect against voltage surges, not against rise in electric current (Amperes). The fuse inside your computer's power supply protects again ... PC Desktops

No power, front panel light is always on


Run with the 4-pin ATX power cable unplugged? No, the power supply is just supplying power to the hardware components, that do not require much power. (Wattage) [Or the power supply doesn't have enough power now, due to a bad power rail, or mor ... PC Desktops

I have a problem with my Sony Vaio VGN- FZ112 laptop which I have bought over 2 years ago (therefore no warranty on it). I cannot start the laptop. When I press power on button the light switches on, every possible light switchs on, but the actual screen stays black. I am lost as to what can be the problem apart from a hardware issue?


You could have a defective screen - a defective inverter or a CCFL lamp, follow this to determine the fault.Defective CCFL backlight, it may have the following symptom: \015\012\015\012S ... Sony VAIO Notebook

Plugged it in, double checked all connections. won't turn on.


If your handy with tools , you need to open the MONITOR and check the power supply section for BLOWN FUSE and also for a visual look at the board for possible burnt or cold solder , hope this helps , AJ ... LG L1915S 19" LCD Monitor

When i plug it in and turn it on the power light come on, then the battery light turns red, it has to charge for about an hour before the battery light turns green, but still nothing further happens.


Not really sure what your asking here but im gonna assume your just staying your not getting any response at all from your computer when you try to turn it on. So if thats the case continue, if not please post a comment onto this message and try to ... Acer Aspire 9300-3642 Notebook

Corruption in feature manager settings - PC Desktops


Power Supply and Chassis Issues No boot situations can be caused by any of the following power supply, chassis or fan issues:\015\012\015\012Verify that your chassis and power supply is appropriat ... PC Desktops

Front panel Ac Switch failing to start computer.


Try these steps.\015\012If Power supply light does not turn on (or no power supply LED)\015\012Perform the following steps, in order, until power is restored or it is determined that there is a hardware failure:\015\012NOT ... Compaq Presario SR1000T (568657) PC Desktop

My dell optiplex GX 260 suddenly restarted on its own a few times then it does not start anymore. The power indicator on motherboard doesnot light up. Power box burnt?


Possibly, there was a serious problems with capactiors that affected all major manufacturers a fre years back whereby the caps didnt last more than 2 to 3 years. SOme lasted longer before blowing. Dell could help you establish if yours was affected. ... Dell OptiPlex GX260 PC Desktop

Upgrade to a new motherboard?


Nothing happens at all except these:\015\012 \015\0121: The cooling fans come on in the correct manner.\015\0122: The "Power Light" comes on and just stays lit. No blinking!\015\0123: The CD Drive at the top does open and clo ... E-Machines eMachines Refurbished EMA SYSTEM BOARD MODEL T2984 eMachines (102257) PC Desktop
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.5151 seconds