Service manual

22” LCD Color Monitor Adelpia TGL2240A
19
5.2.2 Power Board Block Diagram
EMI filter
Bridge
Rectifier and
Filter
Start Circuit
R904, R905, R906
PWM
Control IC
Transformer
Feedback
circuit
Rectifier
Diodes
AC input
5V
5V1
ON/OFF
Control
PWM
Control IC
Feedback
Circuit
OSC and
Output
DC
Convert
MOSFET
Q805, Q806
Over Voltage
protect
Lamp
ON/OFF
DIM
CN902
Audio Power Amplifier
IC601 APA2069JITUL
CN602
Audio L/R out