User's Manual

Chapter 2: Controls
User Application LED
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Psion Teklogix 7535 G2 Hand-Held Computer Service Manual
2.3.4 User Application LED
This indicator is available for custom applications. Neither the 7535 G2’s operating system nor Psion
Teklogix’ terminal-emulator TekTerm use this LED.
2.4 The Beeper
The 7535 G2 has an internal beeper whose volume can be manually adjusted via keyboard hot-keys.
2.5 Turning The 7535 G2 On And Off
To switch on:
press and hold the [ENTER/ON] key for at least one second.
To switch off:
press the [BLUE] key, then press the [ENTER/ON] key. The 7535 G2 enters a suspended state. The
contents of RAM are preserved.
2.6 Resetting The 7535 G2
The 7535 G2 hardware can be reset in two different ways. The first way restarts the operating system.
The second way does not load the operating system, but presents the bootloader. The bootloader can load
the operating system. It has a text-mode console at which commands can be entered.
To reset the 7535 G2 and restart the operating system:
• Press and hold down the [BLUE] key and the [ENTER/ON] key simultaneously for a minimum
of six seconds. The four indicator LEDs light for a second, and the screen displays the Psion
Teklogix and Microsoft® Windows® CE.net splash screen before displaying the startup desktop.
To reset the 7535 G2 and display the bootloader:
• Press and hold down the [SCAN] key, the [BLUE] key and the [ENTER/ON] key
simultaneously for a minimum of six seconds. The four indicator LEDs light for a second, and
the 7535 G2 displays the boot-loader’s opening screen.
A reset results in a complete reboot of the unit. All RAM memory contents are lost. The contents of the
flash memory and memory card are preserved.