7
.
Troubleshooting
7-1. Cross Section (Ass'y Inverter P.C.B and Drive P.C.B)
- 17 -
PRECAUTION
1. Check ground before checking for trouble.
2. Be careful of the high voltage circuit
3. Discharge the high voltage capacitor.
4. When checking the continuity of the switches or transformer, disconnect lead wires from these parts and then
check continuity without the power source on. To do otherwise may result in a false reading or damage to
your meter.
5. Do not touch any part of the circuit or the control circuit board, since static discharge may damage it. Always
Touch ground while working on it to discharge any static charge built up.
Note
: Changing
~
requires to follow minimum torque range 40 kg.cm
H.V.Trans
Holder P.C.B
MOSFET(IRFPO64N)
Drive P.C.B
Surge High Voltage
Capacitor
High Voltage
Capacitor
Ass'y-Inverter P.C.B
Ass'y-Sub P.C.B
Fuse (250V5A)
Summary of Contents for DE7712N
Page 17: ...9 P C B Circuit Diagrams and Parts List 9 1 Main P C B Circuit Diagrams 23 a b c d ...
Page 19: ...9 P C B Circuit Diagrams and Parts List Continued 9 3 Inverter P C B Circuit Diagram 25 f e ...
Page 20: ...9 P C B Circuit Diagrams and Parts List Continued 9 4 Drive P C B Circuit Diagram 26 g h ...
