T61 Sicherungen

Fuses in the T61

Location on the Planar

These pictures show the locations of the fuses on a mainboard FRU 41W1487 (14" wide, Intel graphics).

Functions

The functions of the fuses were taken from the schematics of part number 42W7622 hoping that the differences to the 41W1487 aren't too big. The page column refers to the schematics linked to before. PTC are resettable fuses, it should never be necessary to replace them (in theory).

name	current	part number	page	function
F1	(PTC)	NANOSMDC150F MF-NSMF150-2	29	resetable fuse (PTC), connects VGA pin 9 with VCC_5B
F2	7A	429007	75	DC in
F3	3A	434003	28	3.3V for LCD panel
F4	2A	434002	71	5V for fan
F5	0.5A	434500	78	power for EC etc. from docking station
F6	(PTC)	NANOSMDC050F MF_NSMF050	63	3.3V for touchpad
F7	3A	433003	28	20V for LCD inverter
F8	0.5A	434500	28	3.3V for LCD panel (LEDs on inverter PCB?)
F9	0.5A	434500	78	power for EC etc. from main battery
F10	0.5A	434500	78	power for EC etc. from secondary battery
F11	10A	451010	78	secondary (ultrabay) battery
F12	10A	451010	78	main battery
F13	NO_ASM	-	55	not assembled
F14	(PTC)	NANOSMDC050F MF_NSMF050	59	connects pin 171 of docking port with VCC5M
F15	(PTC)	NANOSMDC050F MF_NSMF050	63	5V for touchpad
F16	0.5A	434500	28	connects VCC5B with pin 78 of LCD connector (reserved?)
F17	(PTC)	NANOSMDC150F MF-NSMF150-2	47	connects pin 6 of MDC connector with VCC3M