The Lenovo Z465 instant spike classical on electrical repairs
mahmoud
Lenovo Z465 machine, Compal OEM board is actually the AMD architecture, the comparison does not like this type of machine, to get our hands on black open look, I was laughing legend three repair machine, a well-deserved reputation, near the power connector
protective isolation electrical road, the EC
the BIOS standby 5V power supply
at all engaged in, let the black to I brew a cup of iced coffee: mellow mocha latte tastes, the whole two cool ! Open dry! / X “i # y: i # e. W $ X
current time is 9:30, looked under the table, the whole bar! careful visual inspection of the motherboard throughout, though, is a lot of repair, engaged in a very rotten, but do not affect the use of decisive measured discovered at a common point short supply on the land value, disconnect the front stage, after short circuit directly own low burn-law found a bad capacitor near the memory interface to just pull the trigger or not power-on until then, decisively on the the artifact TDSS220
to Southbridge EC’s crystal whole press, sine wave, generally wave, I’m not the amount of supply of the EC, directly to the amount of the next ECRST LID BAT LOW AICN has a look at the chart of
EC hang from the BIOS, decisive amount under the BIOS, found that 12 foot waves
56 feet actually no wave, was found by measuring 56 feet resistance to EC did not decisively put, then the amount or wave directly brush the BIOS, which under the 56 foot waves, the power actually do not run the code, Bobo amount LPC bus found no LAD waveform
decisive the amount of the LPC bus, found one pair value, decisively fly line power again ran the code, but the current into memory at repeatedly jump, just do not go up, wave an amount of memory, but can not be sustained sawtooth waveform exclude memory CPU directly on the BGA plus welding Northbridge, OK this machine repair
