Need help knowing what resistor i need to replace a blown one?
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Re: Resistor replacement which one needed?
can you make the colors out? unsolder it maybe on the bottom side its still visible -
Re: Resistor replacement which one needed?
its cream in colour, i can see a gold stripe and it says r33 at the sideComment
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Re: Resistor replacement which one needed?
what about the other stripes? there should be 4 or 5 in totalComment
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Re: Resistor replacement which one needed?
What is the P/N of that IC next to that burnt out the resistor? That may be very low Ohms resistor for feeding the VCC of the IC.
Can you look at the bottom side of the board to see which pin of the IC the resistor is connected to?Never stop learning
Basic LCD TV and Monitor troubleshooting guides.
http://www.badcaps.net/forum/showthr...956#post305956
Voltage Regulator (LDO) testing:
http://www.badcaps.net/forum/showthr...999#post300999
Inverter testing using old CFL:
http://www.badcaps.net/forum/showthr...er+testing+cfl
Tear down pictures : Hit the ">" Show Albums and stories" on the left side
http://s807.photobucket.com/user/budm/library/
TV Factory reset codes listing:
http://www.badcaps.net/forum/showthread.php?t=24809Comment
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Re: Resistor replacement which one needed?
If you take the resistor off the board you may be able to see the colours on the underside
if it has just blown out on the top side.
EDIT if this is a 42 inch cello they are fairly new - is it not under gtee - or did you get it as a damaged return?Last edited by selldoor; 11-15-2015, 05:45 AM.Please upload pictures using attachment function when ask for help on the repair
http://www.badcaps.net/forum/showthread.php?t=39740Comment
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Re: Resistor replacement which one needed?
damaged returnComment
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Hi
I am trying to repair an ancient Dell 2209WA Monitor which suddenly shut off with a pop sound. On investigation found that one of the fusible resistors had blown. Further investigation identified multiple components as faulty because of which the fusible resistor blew. Please refer the attached circuit diagram showing the components that were found to be damaged.
1. FR950 - blown fusible resistor - 0.2 Ohm 1W
2. Q950 - shorted Q950 MOSFET - 650V 10A N Channel Mosfet
3. R835 - Blown Resistor - 20KOhm SMD resistor
4. D930 - Shorted Schottkey Diode... -
Dear All,
I need assistance creating clearMe bios. The laptop is shorted PCH, after PCH replacement laptop can ON but cannot boot. Power supply current reading is 2.5-3.0 Amp.
Model : G512LW-WS74
SN : LCNRKD009429512
CN : ANE9
Attach backup bios.
Thanks for your help.
Best Regards.... -
While removing the glue, I tore off one resistor, marked in the photo. If anyone can, please measure it and tell me its value.
Regards.
...12-19-2024, 12:23 AM -
Hi to all forum members,
Got this faulty 350 watt atx psu dirt cheap from a local online seller as i am keen to use it as a learning tool to repair faulty power supply.
The faulty part is quite obvious from the burn area near the 16pin KA7500 BD pwm. The fuse is still intact with good continuity.
Upon power on ac, there is 5vdc standby power on cathode of diode D14 and about 10vdc on cathode of diode D13.(This should be the aux power to generate the 12v and 5v rail.)
Initially i replace the two burned resistors near my marked red arrow to 200 ohm resistor... -
I am curious if a 0402 resistor could go from 43 ohm to 0. In electronics class and my experience a resistor can degrade and gain resistance all the way up to not being able to conduct at all. I have never heard of a resistor decreasing in resistance and becoming 0 ohm or a dead short… that's not the direction they fail… or so I thought.
I was attempting to remove a wson8 chip on an iMac motherboard and it required a lot of heat, on one side of the chip were 3 0402 resistors that were very close. I popped the chip out unintentionally out of the tweezers and sent those resistors...
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