IC part no will be same for all the similar models & voltage. Black box device( AC adaptor ) can be serviced easily. Most of the failures are common like fuse blown, bridge rectifier failure, capacitor worn. similar to SMPS in normal PC's. Myself rectified 3-4 adaptors. Can check online for instruct...

mine is P/N:02K6810 FRU P/N:02K6816.--11602K6810Z1Z3BJ21J48E
INPUT-100-240V:1.5A 50-60Hz.. OUTPUT-16V-3.5A LPS
Adaptor can be opened and restored back easily..

I guess IC part no will be same for all 16v 3.5A adaptors.

Recently my R51 AC power adaptor failed. when i dismantled it i came to know that two components failed. one is bridge rectifier & other is Input voltage regulator (IC)with 6 legs. As IC is burnt & broken i am unable to find Part number. My adaptor rating is INPUT-100-240V:1.5A OUTPUT-16V-3.5A LPS. ...

I have IBM r51 2888 model laptop with failure motherboard. I want to replace entire motherboard. I tried searching ebay for compatable motherboards. I have found motherboards with different FRu's 39T5510,93p4201. My laptop currently having motheboard model FRU-93p4202. Wats is the difference between...