Search
Member List
Calendar
Help
HP Forums
/
HP Calculators (and very old HP Computers)
/
General Forum 
/
Here we go.... (48G fixing and MEMORY UPGRADE)
/
Here we go.... (48G fixing and MEMORY UPGRADE)
|
Here we go.... (48G fixing and MEMORY UPGRADE)
|
|
06-01-2017, 04:13 AM
Post: #34
|
|||
|
|||
RE: Here we go.... (48G fixing and MEMORY UPGRADE)
(05-31-2017 07:48 PM)lemontea Wrote: Now, power test! One mistake that's easy to make is to fail to fully seat the circuit board before retwisting the tabs to their original position. You should press down on the board in the area near the tab as you retwist it. The firm seating is needed to provide good electrical connection between the circuit board and the keyboard & display contacts beneath. Another thing to watch for is that the twist tabs serve to connect the circuit board to ground. When you twist them back to their original position, make sure the pad ends are touching the copper pads beneath them. I always do a continuity test between tab and pad after reassembly. Try that now to see if you might have a bad connection. Thanks for reminding me I should do a black LCD transplant someday! ~Mark Remember kids, "In a democracy, you get the government you deserve." |
|||
|
|
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 3 Guest(s)