Xboxerjb80

Hi there, can you tell me what the acceptable tolerance is for these resistor arrays?? Both my Samsung drives dont read disks, one had an error 12. Ive only attempted to fix one so far, the one that was giving an Error 12, i checked all the 33 and 82 ohm arrays, found one 33 that was dead, bypassed that much like you did going from the pad to the ide connector, now reading 33.0, another one was high at 37, bypassed that as well, now reading 33.6. One of the 82 ohm resistors read 86.5, bypassed that now reading 81.8. Its now cleared the Error 12 but when i put the disk in the front light flashes on/off green for ages (loading dvd?) and then gives me a bad disk error dirty disk! The resistors in the drive read: NR601 = 33.2 33.6 32.8 and 33.0 NR602 = 33.3 33.4 33.0 and 33.0 NR603 = 33.0 33.6 32.8 and 33.0 NR604 = 32.8 33.6 33.1 and 33.2 NR605 = 81.8 82.3 84.3 and 82.8 NR606 = 83 83.8 83 and 83.3 The ones highlighted in bold are just the ones i changed already. Any help would most appreciated! I guess, 85.3 for one of the 82 ohm resistors in NR605 array is high? But i dont know...... ?? Thanks for tips and help, Bob.