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Monitor
W1742S
Service manual
LG FLATRON W1742S Service Manual page 12
Color monitor
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Also See for FLATRON W1742S
:
User manual
(27 pages)
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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Power
EMI filter
100~240V
Inverter
12V
VDDA
ON/OFF
ON/OFF circuit
DIM
DIM circuit
BLOCK DIAGRAM-POWER
Rush
prevention
5V/12V
output OVP
Push-pull
circuit
Rectification
Starting
resistor
Feedback
control
circuit
Transformer
conversion
PWM IC
OZ9938GN
- 12 -
Transformer
Switching
circuit (PWM
control IC &
MOSFER)
LC resonance
OVP circuit
Sampling
Feedback
circuit
5V
Diode
rectifier
12V
OVP protect
circuit
2 CCFL lamps
Lamp open
protection
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