Dear Alls,
For sure it id a stupid question, but help me to understand. I am in a Dell 2007WFP revitalizing project - searching reason why not starting. Some resistors needed to replaced is is obvious. When I have soldered some resistors the measured (with multimeter) values were sometimes rather different written on them. I supposed these are wrong units so I desoldered and made a checking measurement and voilá the values is the same is written on. This happens only in case of a few resistors, most have the same values (+/- 10%) are written on it. "strange" SMD resistors =>103 10k in hand, but 3.5k on the PCB, 183 18k in hand, but 8.25k and 9.27 on the PCB.
Is it normal? Or do other parts need to check/replace?
OTHER
2202 resistor shows increasing values when I measure on the PCB (starts from 4.1k upto 20.1k. In all cases the board is power off, of course.
Any tip, lesson to learn? Because of the strange values I do not want to switch the board onto 230V.
For sure it id a stupid question, but help me to understand. I am in a Dell 2007WFP revitalizing project - searching reason why not starting. Some resistors needed to replaced is is obvious. When I have soldered some resistors the measured (with multimeter) values were sometimes rather different written on them. I supposed these are wrong units so I desoldered and made a checking measurement and voilá the values is the same is written on. This happens only in case of a few resistors, most have the same values (+/- 10%) are written on it. "strange" SMD resistors =>103 10k in hand, but 3.5k on the PCB, 183 18k in hand, but 8.25k and 9.27 on the PCB.
Is it normal? Or do other parts need to check/replace?
OTHER
2202 resistor shows increasing values when I measure on the PCB (starts from 4.1k upto 20.1k. In all cases the board is power off, of course.
Any tip, lesson to learn? Because of the strange values I do not want to switch the board onto 230V.
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