innomar SES smart - Hardware Related Issues; The Voltage Indicators (Leds) at the Front Panel Are Not Illuminated; The Internal Display Is Switched off if an External Monitor Is Connected; The Internal Display Is White. the PC Seems Not to Boot

User’s Manual Innomar SES Parametric Sub-bottom Profilers 115
Innomar Technologie GmbH (2020-09) 115
7.2 Hardware Related Issues
This section briefly describes some known hardware-related issues.
7.2.1 The voltage indicators (LEDs) at the front panel are not illuminated
Please check:
 The mains connection for the correct voltage range (100 – 240 V AC / 50 – 60 – Hz).
 The main fuse.
 The topside unit’s power switch is switched on.
7.2.2 The internal display is switched off if an external monitor is connected
The internal display will switch off automatically if the screen resolution is set too high for this
display. The internal native resolution is 1024 × 768 pixels. Highest possible resolution for both,
internal and external display is 1680 × 1050 pixels. Above this resolution the display is switched
off if an external monitor is connected.
7.2.3 The internal display is white. The PC seems not to boot.
Please check if an external monitor connected to the monitor output at the front panel is working.
 If yes, the internal display is either switched off (see above) or defective.
 If not, please check/replace the motherboard’s CMOS battery. An empty battery may
cause the PC not to boot properly and not to drive the display output.