Search results

  1. pharaon

    Help fixing Digital Multimeter Proskit MT1210

    my favorite website to host images
  2. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    yes that's' what I'm trying to but what about pin 27,28,29 on the schematic they are not attached to anything
  3. pharaon

    DC Motor Low RPM under load

    that one definitely must be change
  4. pharaon

    DC Motor Low RPM under load

    i would suggest you to check the motor brushes , and change the 3 capacitors
  5. pharaon

    Vacuum Cleaner Problem

    almost no component that can go bad easily, and as long the motor do rotate then the component are fine cause if it were dead the motor may not start properly, WD40 is fine although i don't this that would be the reason for the motor to stop, i think it's what that black thing moving is what...
  6. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    i'm working on it, just trying to exclude the pins that i don't need to wire it to be measured, also trying to find those pins on the mcu, on schematic is different than in real and the pins are really small
  7. pharaon

    Vacuum Cleaner Problem

    i agree with duke37, the issue is in the motor itself not in the circuit ,, so to make sure try to run it while the motor is out as in picture and when it stop try to manually rotate the motor with your hand, if it start rotating then the motor is the issue or something prevent it from rotating...
  8. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    i removed R6 which is detecting voltage, and the beeping still exist i also measured the pad side of mcu after lifting R6 and it gave me 3v is that normal? if it's detecting voltage according to the schematic correct me if I'm wrong about it
  9. pharaon

    help fixing satellite receiver power supply circuit

    any addition measurements i should do before i change the power IC? i mean to make sure there's no other failure components that would harm the new power IC
  10. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    to the com port not the VB- of the battery right? what do you mean with input terminal of the pcb shorted?
  11. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    those are the measurements pin37, -vb = 1.78 pin 37, com = 1.2
  12. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    ok the Vref is pin 38 not 37 i checked on the pcb, and it have a check point on the back of the pcb and those are the messurments Vref , com1 = 1.38 V Vref , vb- battery = 2.91 V [Edited] i also removed R6 which is connected to pin 20 "OVH" i think it's the detecting voltage, correct me if i'm...
  13. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    ok i'll solid one to R15 the side that is connected to pin , and where to solid the other one? i'm trying to learn, still beginner
  14. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    ok it will be so difficult to do such measurement since it's on the U1 side of the board connected to R15 and to have any access to it i need to flip the board which won't allow me to have the key to turn the multi-meter on, and it have no check point to measure it on the back i also notice...
  15. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    does it matter what scale to be on?
  16. pharaon

    Help Fixing UT61E MultiMeter continuously beeping

    to check it does the multimeter need to be on? does it have to be on specific scale what is U1
  17. pharaon

    help fixing satellite receiver power supply circuit

    but will they cause the Ic to not work at all? anyway i'll change them and see
  18. pharaon

    help fixing satellite receiver power supply circuit

    how can those be an issue
  19. pharaon

    help fixing satellite receiver power supply circuit

    which one exactly? do you mean R5 ,R6? or the two diodes 06,05
  20. pharaon

    help fixing satellite receiver power supply circuit

    so anything else to check or is it the power IC
View older results
Top