Hi all i want to know the name of that white plastic ring.Thank you all.
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Re: Pc fan help
I do not usually take these fans apart, but it looks like a plastic lock washer. -
Re: Pc fan help
sometimes called a nylon split-washer.
but split washers can also refer to locking metal washers so be carefull.
a circlip would be a good replacement if the thickness matches.Comment
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Re: Pc fan help
I want to buy some of this can anybody provide me a link where i can buy.Comment
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Re: Pc fan help
You don't need to replace them, as they provide no real function. just add a few drops of oil and make sure you cover the hole with a sticker or something to keep dust and dirt out and the oil in.Comment
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Re: Pc fan help
no real function till you move the equipment and the blades start shifting around.Comment
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Re: Pc fan help
^
No. That is the plastic shaft ring which keeps the shaft in place.I love putting bad caps and flat batteries in fire and watching them explode!!
No wonder it doesn't work! You installed the jumper wires backwards
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Re: Pc fan help
Usually a lock washer whether it is plastic or metal is use to keep tension on a nut so the nut will not loosen up.Comment
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Mounting and Handling Guidelines for TO220 TO220F TO247 Cases / Packages
The TO220, TO220F and TO247 are the popular packages for power devices because of their versatility and ability to dissipate moderate amounts of heat. This application note describes the basic guidelines for handling power MOSFETs in TO220, TO220 and TO247 packages shown in Figure 1. Please note that only mechanical and soldering guidelines are covered here. Additional precautions are required for isolating high voltage rated devices to meet safety regulations.
Securing a good thermal interface between...10-07-2024, 04:35 AM -
Hi,
I am trying to repair a JVC HR-D530E VHS recorder, the cassette does not eject. I discovered that the rubber belt of the loading motor is slipping, so I'd like to replace it. I think I have to remove the (nylon?) washers at each end of the worm axel, labeled '2' in the photo. I tried using a small screwdriver and a pair of tweezers, but to no avail.
Is there perhaps a special tool or a trick required to remove these ?
Thanks in advance, Roland. -
Problem
This is an LG edge LED lit LCD Display. The LEDs are on the bottom edge of the display. There are 2 bars (left and right) Each bar has many LEDs and a 6 pin connector. Each pin drive several LEDs thus is the highest current flow / heat junction. The weak lead free solder gradually fails with thermal expansion/contraction cycling and increases resistance. PSU will compensate up to a point, then when the current is too high, PSU just shut down the backlight causing a dark display. I have even seen one which the connector just fell off as solder points became completely detached.... -
Hello, I need your advise please ? I need to remove and replace the BGA black chip with fpc connectors around. The PCB is small, from camera.
There is no plastic component directly under, on the other face, (only fuse and oscillator I can remove if they are sensitives to heat), but there is a lot of very small smd components I don't want to desolder by mistake.
I have :
- hot air, and a ll stuff around
- true kapton tape
- 140 and 180 degree soldering paste
- bismuth
- little hot plate 250 degree max
- the new BGA chip with probably... -
Hello, I will have to solder a very small FPC connector (pins : 0.3mm), on the pcb of CMOS sensor, it is very close. I was surprised by movie on ytb, someone soldering directly with hot air directly on the sensor without kapton, nothing.
CMOS sensor seems resist to high temps.
But I also directly saw sensor broken because a blocked motor at the corner became very hot and probably bent the metal frame and cracked the sensor.
I have low melting point solder.
I will probably test hot air directly on one of plastic connector (I have a lot) at 320 degree on a test...
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