Bought a 755CE off ebay, no hdd, no power adapter, shows as working in the pics from seller.
Rigged up a 20V lenovo adapter to positive and negative, system won't power on. Removed pcmcia cards, diskette, ram card, battery, still no power on. Voltage from battery connector is +13v (or 15v I cant remember). According to service manual this indicates charging circuit is working.
Found corrosion on backup battery (long battery on left side), removed it. Still no power.
Removed other coin cell battery, still no power.
Any ideas?
Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
755CE no power
Re: 755CE no power
Strip it down and check any fuses you can see (usually marked with silkscreen as a F component (rather than c or r or whatever).
-
dabhidhuaghd
- Posts: 8
- Joined: Sat Feb 17, 2024 6:25 am
- Location: Canterbury, Kent, England
Re: 755CE no power
Hi there!
Did you manage to resolve this issue?
In the same situation I would definitely try to apply power to the regular power supply socket.
I would want to see what happens with an external display connected, at least one stick of RAM installed, and the HDD, any UltraBay devices and any PC Card / PCMCIA devices removed.
Did you manage to resolve this issue?
In the same situation I would definitely try to apply power to the regular power supply socket.
I would want to see what happens with an external display connected, at least one stick of RAM installed, and the HDD, any UltraBay devices and any PC Card / PCMCIA devices removed.
ThinkPad 570e (Intel Pentium III @ 500MHz, 320MB RAM, 12GB HDD, Windows 98 SE & Windows 2000 Workstation dual boot)
-
- Similar Topics
- Replies
- Views
- Last post
-
-
T450 Will Not Power Up
by shajoe44 » Mon Nov 10, 2025 8:23 pm » in ThinkPad T430-T495 / T530-T590 Series - 2 Replies
- 4854 Views
-
Last post by quietude38
Fri Jan 23, 2026 11:37 am
-
-
-
T480 won't boot - power button just flashes.
by kae2020 » Fri Dec 05, 2025 11:20 am » in ThinkPad T430-T495 / T530-T590 Series - 2 Replies
- 12222 Views
-
Last post by kae2020
Sun Dec 07, 2025 2:03 pm
-
-
-
X1 carbon gen 5 and 6 keyboard and power button assembly interchangeability
by dcfbf » Mon Dec 15, 2025 4:15 pm » in ThinkPad X1 / X1-Carbon / X1-Extreme and later Series - 3 Replies
- 11713 Views
-
Last post by dcfbf
Wed Jan 21, 2026 2:32 pm
-
-
- 1 Replies
- 1228 Views
-
Last post by dr_st
Sun Mar 08, 2026 5:27 pm
Who is online
Users browsing this forum: No registered users and 44 guests




