John Lewis NN-GT578SBJQ OEM 27L JLFSMWG002 Service Manual page 15

DANGER HIGH VOLTAGE AND HIGH
TEMPERATURE (HOT/LIVE) HEAT SINK
HEAT SINK
RECTIFIER BRIDGE
FILM CAPACITORS
CHOKE COIL
CN 702
SAND BAR RESISTOR
HIGH VOLTAGE
CURRENT TRANSFORMER
DIODES
PRESET VOLUME *4
(DO NOT ADJUST)
HIGH VOLTAGE
CAPACITORS
CONTROL BOARD
WITH CUSTOM IC
CN 703
PHOTOCOUPLER
HIGH VOLTAGE TRANSFORMER
CN 701
HIGH VOLTAGE REMAINS IN
HIGH VOLTAGE CAPACITORS
figure 16Inverter circuit board layout
10.6 Inverter power supply unit
Warning
Do not attempt to make any measurements in the high
voltage circuit of the inverter or magnetron.
See troubleshooting of the inverter circuit and magne-
tron on <$elemtext to determine if the inverter power
supply is still functioning.
15