Does anybody have one of these or similar that can advise me on a few things?
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Re: Pace MBT 250 Rework System
What is it that you are having problems with? -
Re: Pace MBT 250 Rework System
Does anyone know what the values of the C1 & C2 calibration kit resistors are?
I want to calibrate my old MBT 250, but don't really want to spend $100 for what is essentially a pair of plugs with resistors attached to them.Comment
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Re: Pace MBT 250 Rework System
looking at the service manual, most of the calibration process can be carried out without the C1 & C2 kit, if you need to know the temp display accuracy I would check the tip temperature with a thermal couple temp tester, or at least that is how I check the pace and Weller kit I use.Comment
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Re: Pace MBT 250 Rework System
I did think of that, but I don't have a thermal couple temp tester laying around... Do you know a good, well priced brand that I can try to source something from?
As for most of the calibration being done with out the C1 & C2 kit, maybe you just skimmed over it, but the only things you can do as far as I can tell is set the default temperature scale (c or f), set the setback/inactive power off time, and the upper and lower temperature limist, which I have already done. Knowing how accurate the temperature reading is would be a very good start
The main problem is the tj-70 i got for the mbt 250 doesn't seem to be working properly... It gets hot and the mbt 250 reads a temperature of 483c-490c when it's on max, but it wont melt anything, not even the solder on a tiny 1mm smd capacitor... Not sure if it's a problem with the heater/temp sensor or the mbt250, but the other tools I have for the mbt250 work great at 350c-400c.Last edited by fries; 12-01-2016, 06:33 PM.Comment
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Re: Pace MBT 250 Rework System
check the cable for breaks under the insulation on that last item.Comment
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Hey everyone,
I'm currently working on a mid-70s Sharp Electronic Digital Clock Radio, Model FY-70CH. I found the service manual online, printed it out, and have been studying it for a while. My main reasons for tackling this are: (1) I want to learn electronics and figured I'd start with something I had on hand, and (2) I want to fix its issues. Right now, the radio sounds awful, has about 5V DC at the speaker terminals, and the alarm time setting doesn't work. But I'm not asking how to fix these problems.
Instead, here's what's been bugging me so far:
The schematic... -
Hi All - I'm in the midst or reprogramming the bios on my gen1 Surface Laptop Studio and I accidentally blew away 2 resistors nearby the bios. I don't have another board to measure values of the missing resistors and schematics aren't available, bbut the bios is a 6x5mm Winbond WSON8, W25R256JWPQ model. The traces are conductive to Pins 3 and 7 (IO2 & IO3 respectively) so I have reason to believe they are 10k pull up resistors since IO2&3 pins are used for Quad SPI instructions.
Does anyone with more knowledge, and experience than I, know if this is the case?
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REWORK FLUXES Multifix 425-01 and 450-01 are tacky fluxes designed for use in a wide range of electronics assembly and rework processes. They represent a range of activities and residue levels to meet different customer requirements.
- No Clean Formulations
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- Halide free
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- Compatible with solder coatings and/or No Clean flux cored solder wire product range
Both products are supplied in syringes or cartridges for application by dispensing....10-07-2024, 06:02 AM -
Hi Folks
This has to do with a LED light driver rated for Output - DC36-65V 300mA. This is used to drive a 15W LED panel light.
Now this does not work so opened up and found 2 resistors burnt to crisp. Sensing a learning moment, i looked around the circuit to figure out that it is built around the OB2538 chip. The circuit to a large extent follows the sample application circuit mentioned in the data sheet. I have traced the actual circuit and the same is also attached for reference.
But i have some queries on this circuit
1. The resistors that burnt to crisp... -
I am trying to determine why these two resistors are the colors that they are. This is a Pioneer amp. The ones I am concerned about are the RED & GREEN colored resistors. I need to replace them and want to be sure to use the properly rated component....
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