Owner's manual

<8 TROUBLESHOOTING> 8-2
IM 11Y01B02-01E-A 4th Edition September 11, 2012-00
8.1 Common Troubleshooting Steps
Formostconditionsthetroubleshootingstepsarecommon.Ingeneral,themostcommonissueswith
the analyzer revolve around ensuring an adequate amount of the laser light is received at the detector.
Underanywarningconditionsitisrecommendedthatthefollowingstepsarecarriedoutpriorto
contactingYOKOGAWA.
8.1.1 On Process Gas or Zero Gas or Span Gas
• Check Status LEDs. This will ensure that power is routed properly to the system components.
Status LEDs are listed below:
Blue LED #
(from left to right)
Voltage Use
D20 +5V Laser temp control power supply
D26 -15V Isolated power supply
D27 +15V Isolated power supply
D24 +8V DFBlaserdriverpowersupply
D23 -8V DFBlaserdriverpowersupply
D22 -12V DFBlaserdriverpowersupply
D16 -12V Detector board power supply
D19 -12V VCSELlaserdriverpowersupply
D6 -15V AnalogIOboardpowersupply
D12 -15V FPGAboardpowersupply
D18 +12V VCSELlaserdriverpowersupply
D7 +12V LCD power supply
D8 +24V Main power supply
D9 +15V AnalogIOboardpowersupply
D10 +5V SBCpowersupply
D11 +15V FPGAboardpowersupply
D13 +5V FPGAboardpowersupply
D14 +6V FPGAboardpowersupply
D15 +12V Detector board power supply
D17 +12V General12Vpowersupply