SCPH-77004 strange Spin
i have a PS2 slim scph 77004 which has a strange problem. I test it with cd on it but it will turn very slow or a little turn, it might be stuck the spinner. what i did is opened it then check the cd turning without the top cover while switching the two switch of the ps2 slim to turn. I found out the the cd turn a little then stop, then turn again.
I have a working ps2 slim, the same model 77004 for the testing. I swap the lens, ribbon..but the same problem when i turn the first ps2 slim it turn a little then stop, then turn again. Now i found out that the LENS of the 1st ps2 was ok which i test it to the 2nd ps2. I test also the modchip even changing again the modchip(modbo 4.0). The problem still the same, 1st ps2 slim when i put cd, it turns a little then stop, then turn again.
What supposed to be the problem with this in hardware? which part to be replaced or fuse? so that i can repair it.
sorry for my bad english.
it sounds like the drives ic chip is bad