3
Testing Operation of the Hand-held Monitor
If you want to test the
F 1 : K E Y P A D T E S T
F 2 : D I S P L A Y T E S T
F 3 : T E S T I N T R N A L S
F 4 :
Testing the Internal Electronics
Press F3 (TEST INTRNALS) from the
T E S T I N T R N A L S
S E L F T E S T W O R K I N G e x e c
Testing the Keypad
Press F1 (KEYPAD TEST). The HHM prompts:
K E Y P A D T E S T
S T R I K E A N Y K E Y
K E Y =
M O N / C F G K E Y = C F G
HPress any key you want to test. Each key press is shown on the display. The HOME, D MENU, and ON/OFF keys are tested by their operation.
HTo test keyswitch operation, turn the key and observe the bottom line of the display.
HPress D MENU to perform another test, or press HOME to return to the Home menu.
Testing the Display Screen
Press F2 (DISPLAY TEST) from the HHM Utilities menu. The screen first displays uppercase letters and special characters:
D I S P L A Y T E S T
A B C D E F G H I J K L M N O P Q R S T U V W Z Y Z O 1 2 3 4 5 6 7 8 9 : > ? ± . / 1 O OI IT
Next, a screen of lowercase letters appears, followed by a continuous test pattern, which checks pixel operation. When the test pattern is finished, press DMENU to perform another HHM test, or press HOME to return to the Home menu.
If an error occurs, one of the following messages will appear instead.
E : P R O C E S S O R F A I L
E : R A M F A I L U R E
E : E P R O M F A I L U R E
E : E E P R O M F A I L U R E
E : C O M M E R R O R
Press the Clear key and try the test again. If the message returns, replace the HHM. Otherwise, continue.
An EEPROM failure will not prevent use of the
The COMM ERROR message may indicate that the
Chapter 3 Getting Started |