Chapter 3 Page no. 260
Indicators and Switches.fm
GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Central Listing
2-4-2. Inverter Board 300PL1 Neon Lights
2-4-3. Inverter Board 300PL1 Straps
2-4-4. Inverter Board 300PL1 Test Points
LED Function Color Behavior
L1 600 V Present Clear Normal status: ON
ON when the 600 V from the Mains Distribution
Board 200PL1 is present.
OFF when there is a problem with the 600 V from
the Mains Distribution Board 200PL1. In this case,
proceed as follows:
Check the states of the all the LEDs on the Mains
Distribution Board 200PL1(see Mains Distribution
Board 200PL1 LEDs on page 264).
• If the states of any of the LEDs are abnormal, fix
the problem as described in Mains Distribution
Board 200PL1 LEDs on page 264.
• If the states of all the LEDs are normal, check with
a multimeter that the voltage between the X3 and
X4 connectors on the Inverter Board 300PL1 is at
415 V.
If the voltage is at 415 V, change the Inverter
Board 300PL1.
If the voltage is not at 415 V, check the cabling
between the Mains Distribution Board 200PL1
and the capacitors of the DC Bus on the Inverter
Board 300PL1.
Strap Function
ST1 Gate TH1
ST2 Gate TH2
Test Point Label (in French) Function (in English)
PT1 A/TH1
PT2 HF1
PT3 K/TH2
PT4 600VF
PT5 0V/600VF 600 VF supply at 0 V
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