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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=24809
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Hi guys, this is general query really
So I have a Hill DX3000 3KW audio amplifier here.
It has a topology/design like a class A/B but all the banks of output transistors (10 transistors in each 'side' of the channel) are NPN.
I was wondering what class this is. It doesn't fit the description of class A.
It also doesn't match class A/B or B amplifiers as all the examples I see have a complimentary output stage desigs (NPN/PNP) and clearly is not G, H or D
I looked for 'class A push pull' but that didn't tell me anything either
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For some time, a "Class 2" HDMI cable (part number BN39-01583B) supplied with a Samsung 4K 60 Hz display sometimes causes the display to overlay a few horizontal lines of flickering pixels of random colours and sometimes drops out, particularly on content requring HDCP.
Since changing the cable to a thicker Class 2 unit, this problem has not occured again - do you know of other marginal "Class 2" HDMI cables supplied with displays?09-06-2023, 08:50 PM -
Hello!
Unfortunately my Lenovo L14 Gen 1 (motherboard NM-C741) was involved in a terrible mishap. At first, one of my friends accidentally spilled coffee on it which made some of the ports stop working but the computer worked fine otherwise. After that I stupidly opended it and forgot to disconnect the battery... One thing leads to another and I accidentally short it between two components (unfortunately I do not remember which components). After that I get nothing, no charging indication, no boot indication, no fan spin, nothing.
So I'd love to learn my mistakes and... -
Hi all!
I have a piece of gear with a Power-one SPL130 power supply in it. On the primary side, there is a very tiny (about the size of your thumb nail) RIFA Class Y capacitor, 2.2 nF. I'm not too sure about the condition (whether or not it's cracking) but I do know that it's there.
I'm aggregating information as to how I should remedy this. It hasn't exploded yet, but that's what I'm trying to avoid.
I've never seen a RIFA class Y safety cap self destruct (or at least it hasn't been documented in the past). However, it's not worth the risk to leave it in there.... -
Is a snubbing capacitor fine to use in place of an X2 suppression safety? The only real difference I see is that the dV/dt is around 3 times higher than the recommended Class X2. Is this a positive or negative issue in this turntable audio device? See C601...