5
PCB EXPLANATION
MUX-100 SERVICE MANUAL
5 - 5
5-3 INVERTER UNIT- C1
Function: This PCB equipped with the following circuits controls the power system.
1. IGBT
circuit
2. Filament heating circuit
3. Starter
circuit
During PCB replacement
Adjust the FVR again, and also confirm TkV.
As well, take care of the DIP switch setting.
Check pin list
CP No.
CP Name
Description
CP1 CL
CP2 CO
Filament heating voltage
CP3 Gc
CP4 Ec
IGBT gate signal
CP5 Ga
CP6 Ea
IGBT gate signal
CP7
YC
Stator coil current detection (1V or more is normal.)
CP8 Gd
CP9 Ed
IGBT gate signal
CP10
Gb
IGBT gate signal
CP11
ZC
Stator coil current detection (1V or more is normal.)
CP12
Eb
IGBT gate signal
CP13 GND
GND
Fuse
Fuse Name
Description
F1
Provided for protection
Dip SW
SW No.
Function
SW1-1
OFF(“MUX-100” side) for MUX 100/100H/100D series
SW1-2 Not
used