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Check LLC Supply Control Part IC7001
Start up conditions +25v HOT from stby supply
and SW25V Hot from preconditionner are OK?
Check DC voltages IC7001 Pin
•15 Vcc = 16,5V
•5 Vref = 5,1V
•10 Fault input = 0V
Check by oscilloscope IC7001 Pin
1 Oscil, drive output 14 OA, 12 OB
Chapter 09
If LLC control part does´n start up
check with external DC power supply,
see next page
12
page
P6
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