Posts: 4
Threads: 1
Joined: Jan 1970
The problem stay.
I've reasambled all circuits: unsolder and solder again the display, and main board. I've claned all contact.
I've changed four LR1 batterys.
I can see in screen something like this:
\
- -
/
just only a digit.
And the following labels: BAT USER GRAD SHIFT O
When i insert the battery pack, the HP41 goes on
If i press ON i can see in the screen: MEMORY sound a beep and return to initial state.
When i press R/S occurs the same, but not inmediately, first label GRAD goes to RAD and after one second i can see the MEMORY message and ear the beep.
There is not response to others keys.
Regards