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BenQ Q7T4-FP71G User Manual

BenQ Q7T4-FP71G
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Q7T4-FP71G LCD Monitor Service Guide
Circuit Operation Theory
8
Confidential
A-4.) Inverter diagram:
1.Block Diagram:
2. General Specification
Input Voltage: 15V
Input Current: 2A max.
ON/OFF Voltage: 5V
PWM Duty: 5V/50KHz
Output Requirement:
Max. Output Current: 7.5mA
Min. Output Current: 3.3mA
Lamp Working Voltage: 660Vrms
Open Lamp Voltage: 1500Vrms
Frequency: 50KHz
15Vin
ON/OFF
switching
OSCILATOR
CIRCUIT
TRANSFORMER CCFL
PWM CONTROLLER
TL1451 CIRCUIT
PROTECTION
AND DETECT
ON/OFF
BRT_ADJ

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BenQ Q7T4-FP71G Specifications

General IconGeneral
BrandBenQ
ModelQ7T4-FP71G
CategoryMonitor
LanguageEnglish

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