16 main circuit description, Troubleshooting cutmaster 42 – Tweco 42 CutMaster Service Manual User Manual
Page 53
TROUBLESHOOTING
CUTMASTER 42
Manual 0-5171
6-17 Troubleshooting
6.16 Main Circuit Description
!
Turn off power and disconnect mains supply plug from receptacle before working on the unit. Allow two minutes for
capacitors to discharge after disconnection from mains supply voltage.
PFC Control Chip
AC
AC
V+
V-
U1
DC+
DC-
DC+
DC-
dc+
dc+
Art # A-10249
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