Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

liteott

macrumors newbie
Original poster
Nov 9, 2014
1
0
Hi if somebody can help me: I have A1706 820-00923 flashing folder. and found U8600 "pp0v9 short_ssd_reg" short to ground(I was take off L9321 and L9320 with multitest diode mode 0 om Ohm mode 0.04 and injecting with 1v--> 3 A and raise to 2v-->4 A but didn't see and caps bad, hot, same as all other componets only u8600 (SSD) chip little bit warm can someone tell me how do I find short or troubleshoot this situation thanks.
Also I have another same A1706 820-00239 board: I can not find the ppbus_g3H short to ground: Ohm:58 diode: 0.045 injecting 1v--3.3v cameout max 4 A all componets warm only the CPU getting hot around 60 C degrees. I don't know how can I do next. is that cpu bad? for you guys experence can tell me why and how I find out the short point. thanks.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.