Did I fry HuC6260? LCD mod fail

[wilykat]

I went to mod my Turboexpress for LCD and when I tested it, nothing worked.  I used a bench power supply to provide 9v into battery compartment as it also had amp meter to monitor consumption.  After some checking, I found the fuse had blown and it seems I wired the ground wire from the lifted pins of the video chip to 5v spot rather than ground spot.

Can the HuC6260 get fried if I put 5v through those 5 ground pins?  I really would hate having to desolder and remove the entire chip and swap it with one from a sacrifice console.

[pnauts]

normally no, some friend fried fuses on PC engine twice without further problem on chips.

[thesteve]

no, as those pins are hooked to 5V stock on that system

[wilykat]

It work!!!

Put in a new fuse, double-checked the wiring, and tested it.  I don't know what was that blew the fuse first time, maybe a bit of solder blob that escaped me? I did blow my TE with compressed air to ensure no metal dust remained.

FWIW my bench power supply was reporting slightly over 400mA draw at 10v DC. That is with the modern 3.5" LCD and no other mod.

[thesteve]

it depends largely on the game used
i remember testing mine back about 95 and it pulled 400mA to 600mA depending on the game in the slot