My measurements with components still on board (without unsoldering each of the resistances // I'll do it when I'll receive the new resistances)
RESISTANCES
- R15 : 26 ohms (should be 52 ohms)
- R101 : 7 kohms (should be 22 kohms)
- R102 : 6.9 kohms (should be 10 kohms)
- R119 : 1 kohms (should be 1 kohms) // This one is tricky as it shows correct 1k value, but it is not ! As someone else reported, once unsoldered, the correct value shown is 10 kohms so it should be replaced with a 1 kohms
- R156 : 230 ohms (should be 70 ohms)
- R155 : 70 ohms (should be 230 ohms)
- R178 : 1.48 kohms (should be 10 kohms)
- R179 : 10.33 kohms (should be 1.4 kohms)
- R195 : 0.5 ohms (should be 38 kohms)
- R233 : 7.66 kohms (should be 47 kohms)
- R280 : 12.86 kohms (should be 38 kohms)
- R285 : 12.81 kohms (should be 38 kohms)
- R292 : 230 ohms (should be 70 ohms)
- R293 : 70 ohms (should be 230 ohms)
VOLTAGES
- RAM Vdd = +2.96v (should be +2.5v) // Well too high as from datasheet it is supposed to be +2.5v
- RAM Vref U18 : +1.48v (should be +1.25v)
- RAM Vref U19 : +1.48v (should be +1.25v)
- RAM Vref U20 : +0.27v (should be +1.25v) // This is the one driven by R119
- RAM Vref U21 : +1.48v (should be +1.25v)
- RAM Vref are lightly too high based on datasheet informations : it should be 0.5 X Vdd ... so if powering RAM chips with +2.5v ... it makes +1.25v