Internal Test Procedures

Firstly, select your calculator model from the table below. The table has three columns. The first column shows the list of HP Calculators. The second column shows the required keystroke sequences to run the internal tests. The third column shows the results displayed on your calculator.

If the internal test returns an error message, then please remove the batteries after a period of 48 hours replace the batteries with new ones and re-do the internal test. In the case that internal test returns an error message, please try to remove the batteries for about 48 hours. CAUTION! Removing the batteries will erase all data from your calculator and reset the calculator back to the factory settings!

If the problem persist after all of the above steps, please refer to the SERVICE section in the main menu and follow the instruction there.

Calc model	Action / sequence to execute	Expected normal result
6S – 6S Solar	Not available
9S	Not available
9G	[2nd] [RESET]	RESET: N Y
	[2nd]+[ALPHA]+[(-)] (runs the auto test menu)	TEST=
		1 D 2 K
	[1] (runs the display test)	3 LOOP
	[ENTER] (to continue)	(Displays all pixels)
	[DRG] (back to test display)	(...misc patterns-no error message)
	[2] (runs the keyboard test)
		(dot will disappear upon each key to be pushed)
	[ENTER] (to continue)
	[3] (runs the loop test)	checking the contrast
	[DRG] [ENTER] (exit auto test menu)
	[ENTER]
10BII	[ON] then [ON]+[PMT] , [N] , [MU] ,  [CFj] , [RM] , [÷] , [6] , [2] , [0] , [ON]	(All indicators and digits should be displayed at each key stroke)
		GOOd (displayed for 1 second)
12C	Switch off, then [ON] + [*] ([*] first pressed [*] last released)	running
		-8,8,8,8,8,8,8,8,8,8,
17BII	[ON]+[5th top key]	OK 17B II-I
	[ON] to stop the looping test	COPYRIGHT HP 1987
17BII+	[ON] + [4th] then select which test you want to perform	1LD 2LC 3KB 4SPD 5CKS
	[ON] + [3rd] to stop procedure	6MEM 7IR 8CRYSTAL 9BUZ
20S	Not needed : included in keyboard test
30S	[2nd] [RESET]	RESET: N Y
	[2nd]+[+/-]+[DEL] (runs the auto test menu)	TEST:1)D 2)K
	[1] (runs the test)
	[ENTER] [ENTER] [ENTER] (test)	(Displays all pixels)
	[DRG] [ENTER] [ENTER] (exit auto test menu)	(...misc patterns-no error message)
		TEST:1)D 2)K
		(Clears screen)
32SII	Not needed, included in kbd test
38G	[ON]+[5th top key]	OK-38
	[ON]+[3rd top key] (to stop the looping test)
39G/40G	[ON]+ [3rd top key] (resets the machine)	(Clears screen)
	[ON]+ [5th top key] (runs a continuous test)
	[ON]+ [3rd top key] (to stop the looping test)
		HP39/40 OK
		(Clears screen)
48G series	[ON]+[C] (resets the machine)	(Clears the display)
	[ON]+[E] (runs a continuous test)	OK-48
	[ON]+[C]
		(Clears the display)
48GII	[ON]+[C] (resets the machine)	(Clears the display)
	[ON]+[E] (runs a continuous test)	COPYRIGHT  2003
	[ON]+[C]	HEWLETT-PACKARD
	For each single test please press	DEVELOPMENT COMPANY,
	[ON]+[D] and run single test or	L.P.
	[ON]+[F] and run single test	(Clears the display)
49G	[ON]+[F3] (resets the machine)	(Clears the display)
	[ON]+[F5] (runs a continuous test)
	[ON]+[F3]	HP49 OK
		(Clears the display)
49G+	[ON]+[F3] (resets the machine)	(Clears the display)
	[ON]+[F5] (runs a continuous test)	COPYRIGHT  2003
	[ON]+[F3]	HEWLETT-PACKARD
	For each single test please press	DEVELOPMENT COMPANY,
	[ON]+[D] and run single test or	L.P.
	[ON]+[F] and run single test	(Clears the display)
82240B	Switch off the printer. Insert paper. Press [right button] and hold down. Switch on	Prints 10 test lines and information about the battery level