Questions tagged [replacement]
The replacement tag has no usage guidance.
27
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Finding replacement battery
I would like to revive an older gadget (GT-100 GPS tracker) that is still functional but has a dead battery. However, I am unable to find detail about proper battery type.
The original battery says ...
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eMMC chip change. Does not work for unknown reason
Because of the chip crisis, I had to use (the only ones which were available at the time) different eMMC chip.
Originally it was MTFC16GAPALBH-IT, but I have temporarily replaced it with MTFC4GLWDM-4M ...
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Cree LED problem
We have a production circuit of 24 series/parallel LED arrays. Blocks of LEDs fail on power-up.
Has anyone seen this before? The sequence of events is:
An LED tests as bad in circuit.
LED is removed ...
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Input voltage on transformer
I’m replacing a transformer on hot tub. Markings on original were obliterated from rust. New transformer is marked as follows. 0 v blk wire, 115 v white wire, 230v red wire. The transformer receives ...
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Replacing a Li-Ion battery with a capacitor and power supply in a bluetooth speaker
I have a Philips BT3500 speaker with a dead Lithium Ion battery.
I want to be able to use the speaker without the battery - using just the power supply. It used to work for some time with the usb ...
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Why is my replacement triac not working?
I have a Hakko FX-888D soldering station which stopped heating the iron. I found out that the triac (which is a BTA06-600b) went bad so I went ahead and replaced it with a BTA12-600bw. It didnt work. ...
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Help needed with over discharge circuit on LifePo4 12V car battery replacement
I'm putting together a LifePo4 battery pack with the intention of replacing the 12V lead acid battery in my 4WD.
So far, what I've got is the following.
4 x 10 Ah LifePo4 batteries (38120 Headway) in ...
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Plugable Varistor and Fuse Cartridge for easy and safe replacement
As I have concluded with some tests, by reading some posts and even asking a question on this forum, Varistors can get damaged with multiple or even just one cycle of use. They fail as a short, being ...
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TCA785 obsolete, replacement?
I am looking to redesign an old circuit diagram's phase control IC. I can't find any ICs that can act as a replacement for this item:
TCA785.
What should I look for in an IC for phase control? It is ...
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Alternative IC for ATMEGA
I'm looking for an IC to replace the ATMEGA chip in the following circuit.
During operation the MCU applies a voltage to the base of the BJT allowing current to flow through the load. However, when ...
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WR91700 datasheet or pinout
After several attempts trying to find out the datasheet or pinout of WR917O0 IC, I only have found a service manual of PSR-S710-S910 Yamaha workstations. The IC is included in the list of components ...
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Is an RFP50N06 a valid replacement for an IRF50N06 MOSFET?
I recently blew a MOSFET in my car audio amplifier because some water got on it. The MOSFET used in the amplifier is an IRF50N06. I was wondering if the RFP50N06 MOSFET would be a good replacement ...
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Repairing a control board for an automatic gate opener, it has a faulty trimpot 100k 906k
FAAC control board 12 V has a faulty trimmer (single turn rotary carbon). I could not find the exact values in a replacement part. Can I use one with the values 705 100k? It is used to adjust the ...
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2SB1241 Transistor replacement
I have a Peavey PV8 USB Mixing console which doesn't turn on anymore, the problem is a burned PNP switching the +15V rail.
The Marking of the transistor is B1241 but due to the 3-SIP package im pretty ...
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Operate servo based on AC voltage: solenoid replacement
In short, I’m trying to find a substitute for a solenoid in a system that was operating based on 120V. The servo needs to rotate a little shaft about 45 degrees when the voltage comes on, and then ...
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Fried diode - need help buying replacement
Full disclosure, I'm not an electrician by any means. My dad was an electrician in the Navy, but we lost him last year. Since I don't have him to look to anymore, I'm hoping I can find some help here.
...
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Defective Transformer Replacement
I've been working on repairing a TV psu, and discovered that the transformer in it is faulty (reading O.L. on every combination of pins except for diagonal in ohms mode on the DMM)
I've been looking ...
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MOSFET identification for hoverboard repair - markings SW FK2J3 95N68A
I am trying to fix a Jetson Plasma hoverboard.
I have a removed a few MOSFETs that I believe have failed.
I have searched Digikey and Mouser and have been unable to identify a replacement part.
Here ...
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Looking for a pin-compatible to LT1013DID rail-to-rail in/out op-amp
I have designed a circuit using LT1013DID (SOIC 8 footprint) op-amp and while Spice simulation worked, I forgot about input common-mode voltage limit (which it seems is not simulated) and thus need an ...
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Substitution for 0.1Ω 2W metal film resistor?
I'm attempting to repair a Pure Sine Wave Inverter.
I need to replace a damaged 0.1Ω 2W metal film resistor. I found the part that should work on digitkey: https://www.digikey.com/en/products/detail/...
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Removing single 1212 (3030) LED
Is there any way to remove and replace a single 1212 (3030) LED from a heat-sink board as shown in the images?
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Replacing tip on Weller WHS40 soldering iron?
I've had Weller WHS 40 soldering station for some 20-ish years or so, used purely as hobbyist few times a year mostly for work on simple through-hole components. Lately, the (still original, never ...
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enc28j60 ordere wrong resistors
i prototype a small board with ENC28j60.
Instead of 49.9 resistors I have ordered by mistake 47R ones,
What do you think? will it work? It is only 10M ethernet
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SMD Detector Microswitch Replacement
One of my son's toys stopped working and I decided to jump in to see what was causing the problem. I found that a number of the smaller detector microswitches had their tabs broken off. Therefore ...
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What comparator is compatible with OPA2132?
I've designed a circuit but realized now - when the 200+ boards finally arrived - that I've made a mistake.
Long story short: I made the prototype on a breadboard, using OPA2132 (because that's what ...
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How to identify replacement transformer?
I have a DVD player that is apparently working fine but the power supply makes a loud whining noise. The noise comes from, or from very close to the transformer. Upon close inspection, I see that ...
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