cancel
Showing results for 
Search instead for 
Did you mean: 
ArchivedThis topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.
smashgp
New member
2 1 0 0
Message 1 of 5
1,644
Flag Post

HP10bII Financial Calculator Display Missing Components

HP Recommended
HP10bII
Other

Hi,

 

My HP10bII Financial Calculator is mulfunctioning, the number on the display miss some components. The 3rd & 5th numbers are not displayed correct e.g. 0 look like C and 8 look H. As per the User's Gide, I press Shift+N+FV simulteneously to reset it but the display of number is still distorted. I even press the reset button at the back with the paper clip but it did not work. I also took off the batteries but still it is the same.

 

Please assist.

 

Regards

4 REPLIES 4
Maké
Level 9
3,551 3,458 180 540
Message 2 of 5
Flag Post
HP Recommended

Hi!, @smashgp:

 

Welcome, to Forum !.:smileyhappy:

 

Check, with Self Test, from ... https://www.educalc.net/1776086.page

 

This Self Tests
is only, one simple test
Streaming and interactive, which, tests keyboard.

 

Too, you can try, with replace, the two (2) coin batteries Duracell or, other brand, call CR2032. Both, are same.

 

descarga.jpg

 

Or, too ... https://www.educalc.net/443086.page

Kind Regards !.
Have a nice day !.
@Maké (Technical Advisor Premium - HP Program Top Contributor).
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
Was this reply helpful? Yes No
andy11
Level 5
167 141 11 12
Message 3 of 5
Flag Post
HP Recommended

@smashgp wrote:

My HP10bII Financial Calculator is mulfunctioning, the number on the display miss some components. The 3rd & 5th numbers are not displayed correct e.g. 0 look like C and 8 look H. As per the User's Gide, I press Shift+N+FV simulteneously to reset it but the display of number is still distorted. I even press the reset button at the back with the paper clip but it did not work. I also took off the batteries but still it is the same.

 


I assume that the unit is beyond its warranty period. In that case disassembling it seems to be necessary.

I do not know about the internal build of the 10bII, but  in some HP calculators  the display or its control circuit is connected to the mainboard by a "zebra" connector. If this is the case check if the connections of the zebra connector are solid enough. You could also press, very easy, the circuits connected by zebra connectors to the mainboard and check if the problem disappeared.

Anyway, even if the 10bII has no zebra connetors inside the problem seems to be due to bad connection somewhere inside. You would be very unlucky if the display itself were broken, in that case a repair would be not possible, except for the exchange of the whole display, but as I wrote above in most cases it is caused by a bad connection somewhere inside the unit.

 

Was this reply helpful? Yes No
BartdB
Level 9
971 954 119 186
Message 4 of 5
Flag Post
HP Recommended

@smashgp wrote:

Hi,

 

My HP10bII Financial Calculator is mulfunctioning, the number on the display miss some components. The 3rd & 5th numbers are not displayed correct e.g. 0 look like C and 8 look H. As per the User's Gide, I press Shift+N+FV simulteneously to reset it but the display of number is still distorted. I even press the reset button at the back with the paper clip but it did not work. I also took off the batteries but still it is the same.

 

Please assist.

 

Regards


 

 

Good day,

 

If your calculator is in warranty, have it replaced.

 

If it is out of warranty there may be little you can do about it, other than buy a new one.

Here is a link to someone who tried to repair it:

http://www.keesvandersanden.nl/calculators/hp10bii_repair.php

 

Unfortunately the screen is connected to the PCB with a thermally attached connector, also called a "heat-seal" connector. These are notoriously difficult to repair. The person in the above link did not  manage to get all the digits working again.

 

You can google "LCD heat seal connector repair" to see how others have tried to fix it.

 

Regards.

 

 

-Bart
_________________________________________________________
calculator enthusiast
Was this reply helpful? Yes No
smashgp
Author
New member
2 1 0 0
Message 5 of 5
Flag Post
HP Recommended
Dear Kudos,

Thank you for the advice. I guess I just need to buy a new one.

Kind regards

Was this reply helpful? Yes No
ArchivedThis topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation