The following warnings occurred:
Warning [2] Undefined array key 45348 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 45348 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $lang - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks





Bad HP-48SX ON/ATTN key



#2

Hello;

The ON, or ATTN key on my 1991 vintage HP-48SX is not working well when it comes to turning on the calculator; however once the unit comes to life, I can press ATTN at will and the button works every time.

Some days (but rarely) I push the button and the calculator springs to life right away; most days I have to press and hold the button for several minutes before it starts working. Sometimes I find that grabbing the unit with both hands and giving it a gentle twist (yikes!) will do the trick, but I really hate doing this.

When it does start to work, I see the little hour-glass very briefly and if I let go of the ON key while the hour glass is present, the calculator comes to life.

I thought it might be the batteries or battery contacts, but I've beat that horse to death... It's not batteries.

It's almost as though there was some weird capacitive based startup feature for the calculator that isn't working, because once the unit comes to life, all keys work (including the ON/ATTN key) and the unit is fine otherwise.

From another post (posted in Oct/2003, last month), I tried pressing just above the B and C keys on the raised portion below the display to see if it was the internal keyboard connector... to no avail.

Any other suggestions?

Thanks,

Al

akimball@mac.com
akimball@sarcos.com

I currently have three HP calculators, an HP-41CX with many modules/BC reader (use it all the time), this HP-48SX (used less and less cause it won't start), and a newer HP-12C Platinum (horrible reading the yellow graphics on the shiny silver face plate) which I bought just because I wanted it.
Sure wish I had spent the money on that HP-16C in college; it's one of only 3 things I really regret not buying in life. :( Thanks again for any help on the 48SX. :)


Possibly Related Threads…
Thread Author Replies Views Last Post
  HP Prime - EEX/X/Toolbox-key suggestions bluesun08 2 1,488 11-07-2013, 06:15 PM
Last Post: bluesun08
  HP PRIME : strange behavior when trying user key capability Damien 12 3,803 11-03-2013, 11:02 AM
Last Post: Joe Horn
  HP PRIME: How to use [a b/c] key from a program Joseph Ec 4 1,854 10-29-2013, 06:18 PM
Last Post: Joseph Ec
  Roll-down key in HP-15C Steve Ross 6 2,222 10-15-2013, 04:12 AM
Last Post: Nick_S
  Bad Flash in HP Prime Han 11 3,171 09-27-2013, 12:38 PM
Last Post: Han
  HP-15 LE Key repair question Namir 2 1,407 06-10-2013, 10:42 PM
Last Post: Namir
  The HP Graphers 48SX - 50G Jedidiah Smith 11 3,001 04-08-2013, 08:35 PM
Last Post: gene wright
  Cheap hp32sii in bad condition on sale on Taobao Waon Shinyoe (China) 1 1,195 03-01-2013, 08:35 PM
Last Post: Raymond Del Tondo
  Error Message/Procedure HP-48SX with TDS Survey SX card bporter101 6 1,946 12-10-2012, 10:18 AM
Last Post: bporter101
  HP calculators: origin of prefix key labels f and g M Habl 9 2,715 11-21-2012, 08:29 PM
Last Post: Gerson W. Barbosa

Forum Jump: