46 Service manual
3. Circuit Boards - L1800, Generator Board CRANEX
®
Novus e
L1800 - Indicator lights
LED Colour Indicates
H1 green +380V (capacitors charged)
H2 green +15V
H3 yellow Exposure
H4 red Tube fail
H5 yellow Preheat
H6 green +15V_HVGND
L1800 - Test Points
Number Signal Value
TP1 +27V5
TP2 +5V FILTERED MAPWM
TP3 GND 0V
TP4 +15V
TP5 - NOT USED
TP6 - NOT USED
TP7 HVGND 0V
TP8 +17V
TP9 VDD +15V_HVGND
TP10 - FILTERED KVPWM
TP11 mAref Calibrated by the CPU
TP12 kVref Counted from values: 1V=22kV
TP13 - NOT USED
TP14 kVfb Counted from values: 1V=22kV
TP15 EXPENA on to enable off to disable
TP16 MAFB_INT 0.2V = 1mA
TP17 GND 0V
TP18 mAfb 0.2V = 1mA
TP19 Tubeheat
TP20 - J2 closed=25V (default); J2 open=20.7V
TP21 - NOT USED
TP22 HVGND Mains voltage side, ground
TP23 HV310 +380V (HVGND)
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