AL1914 Service Guide
Page 7
... ...23 BLOCK DIAGRAM ...24 MONITOR BOARD LAYOUT ...27 SOFTWARE FLOW CHART ...29 GENERAL INSTRUCTIONS ...30 SYSTEM INSTALLATION ...31 POWER/INVERTOR BOARD ...36 ELECTRICAL SPECIFICATION...37 INVERTER ELECTRICAL SPECIFICATION ...39 SAFETY ...41 Chapter 2 Operating Instruction 43 CONTROLS ...43 MAIN OSD MENU...44 OSD MESSAGE...46 PLUG AND PLAY ...48 WHITE COLOR TEMPERATURE...
... ...23 BLOCK DIAGRAM ...24 MONITOR BOARD LAYOUT ...27 SOFTWARE FLOW CHART ...29 GENERAL INSTRUCTIONS ...30 SYSTEM INSTALLATION ...31 POWER/INVERTOR BOARD ...36 ELECTRICAL SPECIFICATION...37 INVERTER ELECTRICAL SPECIFICATION ...39 SAFETY ...41 Chapter 2 Operating Instruction 43 CONTROLS ...43 MAIN OSD MENU...44 OSD MESSAGE...46 PLUG AND PLAY ...48 WHITE COLOR TEMPERATURE...
AL1914 Service Guide
Page 23
The Adapter will drive the backlight of panel and the DC-DC conversion. The inverter board will provide thr 12V DC-power to inverter/ power board. MONITOR BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the flat panel control logic, brightness control logic and DDC. Power board (include: AC/DC,inverter) - 23 -
The Adapter will drive the backlight of panel and the DC-DC conversion. The inverter board will provide thr 12V DC-power to inverter/ power board. MONITOR BLOCK DIAGRAM The LCD monitor will contain an main board, an inverter/ power board, key board and internal adapter which house the flat panel control logic, brightness control logic and DDC. Power board (include: AC/DC,inverter) - 23 -
AL1914 Service Guide
Page 36
It supplies the following outputs : 1). 5Vdc: Logic power. 2). 5Vaudio: Audio power. 3). 15Vinv: Inverter power. POWER/Inverter Board Description This specification defined the performance and characteristic of power/inverter board. Features Input Voltage: 100 ~ 240 ±10%Vac Input current: 1.2Amax. AC Inlet: HUAJIE SA-4S-066 ... +5Vdc +5Vdc Function Audio power (optional). Audio ground Ground Ground Brightness control from logical board (0V to 3.3V) ----Inverter enable signal from logical board (high active , >3V) +5Vdc supply for logical board +5Vdc supply for logical board +...
It supplies the following outputs : 1). 5Vdc: Logic power. 2). 5Vaudio: Audio power. 3). 15Vinv: Inverter power. POWER/Inverter Board Description This specification defined the performance and characteristic of power/inverter board. Features Input Voltage: 100 ~ 240 ±10%Vac Input current: 1.2Amax. AC Inlet: HUAJIE SA-4S-066 ... +5Vdc +5Vdc Function Audio power (optional). Audio ground Ground Ground Brightness control from logical board (0V to 3.3V) ----Inverter enable signal from logical board (high active , >3V) +5Vdc supply for logical board +5Vdc supply for logical board +...
AL1914 Service Guide
Page 37
Typ 1.0 70 --- Max. 240 63 1.0 30 50 ------- 1 Unit Vac Hz Arms A0-P A0-P ms S % W - 37 - 2.Inverter-side connecter : ACES 87210-0236 2P P3.5 PIN NO. 1 2 Function Cth Ctl Comment VBLH(High voltage) VBLL(Low voltage) Electrical Specification: AC-DC Electrical specification ...
Typ 1.0 70 --- Max. 240 63 1.0 30 50 ------- 1 Unit Vac Hz Arms A0-P A0-P ms S % W - 37 - 2.Inverter-side connecter : ACES 87210-0236 2P P3.5 PIN NO. 1 2 Function Cth Ctl Comment VBLH(High voltage) VBLL(Low voltage) Electrical Specification: AC-DC Electrical specification ...
AL1914 Service Guide
Page 39
...) Vbri=0.4V~3.3V 4.0 - 39 - Unit --- Input Current --- --- Cd/m² 8.0 mA A V V --- --- 790 Vrms --- mA --- 80 --- % 50000 --- --- Input Voltage --- --- Luminance Output Voltage Vin=15V, Iout=7.5mA --- Unit --- V --- Inverter Electrical Specification: For LG Condition Min. A V V --- --- --- Luminance / Max. --- Cd/m² Output Current(Each connector) Vbri=0.4V~3.3V 3.0 6.5 7.0 mA Frequency Lamp start voltage Striking Time Lamp...
...) Vbri=0.4V~3.3V 4.0 - 39 - Unit --- Input Current --- --- Cd/m² 8.0 mA A V V --- --- 790 Vrms --- mA --- 80 --- % 50000 --- --- Input Voltage --- --- Luminance Output Voltage Vin=15V, Iout=7.5mA --- Unit --- V --- Inverter Electrical Specification: For LG Condition Min. A V V --- --- --- Luminance / Max. --- Cd/m² Output Current(Each connector) Vbri=0.4V~3.3V 3.0 6.5 7.0 mA Frequency Lamp start voltage Striking Time Lamp...