First post, by Fdiskitup
I’m trying to revive a Seagate ST-4026 Hard disk. It was stopping my computer from booting - complete power out. The 12V rail on the molex power connector was shorted. I removed the pcb and started looking for the shorts with my multimeter - and what a surprise there is a bad capacitor, but I had lift a few legs to find it…
Where I need help is understanding what these piggyback caps are next to the big chip?
Top one is marked A6A 101 JCC 614 = 100pF (2.5mm dia, 4.3 mm length)
Bottom is marked A5E 104 ZTA 551 = 0.1uF (2.5mm dia, 4.5mm length)
Is it a tantalum with a ceramic ?
What do the codes tell me for voltage and tolerance ?