Circuit Board Diagrams; Circuit Board Diagrams And Check Points; Power Circuit Board - Mitsubishi Electric JT-SB116JH2-S-NA Handbook

8. Circuit board diagrams

Circuit board diagrams and check points

1 Power circuit board (JT-34P1H)
Heater power supply: 120 V AC (With heater ON)
(Between TAB3 and TAB4)
Non-insulated power supply
Power supply voltage: 120 V AC
(Between TAB1 and TAB2)
Non-insulated power supply
15 V
(CN2 1P)
Non-insulated power supply
5 V
(CN2 2P)
Bus voltage (Being stopped): 170 V DC
(Between TAB5 and 0 V or between TAB6 and 0 V)
Carrier frequency 15 kHz
0 V
(CN2 3P)
─ 7 ─
(IC1 8P)
Reset input 5 V
(IC1 18P)
Clock frequency 12 MHz
(IC1 19P)