Acer AL1911 AL1911 Service Guide - Page 27

5.1.2 Inverter CKT: 1.Fujustu /FLC48SXC8V-10 No. Item Sym 1 Input Voltage Vin (Condition:Ta=25 ) Condition Min Typ. 11.7 13 2 Lamp Voltage VLamp Vin=13V,ILAMP= 7.5mA - 750 3 Luminance 4 Brightness adjustable range Bmax Center of screen, 7mA for each lamp. 240 300 Minimum Luminance ÷ Maximum Luminance - 40 5 Working Frequency Fo 50 55 6 Lamp Current ILAMP 7.5 7.7 7 Backlight ON/OFF Control Brightness control 8 range(positive adjustment) 9 Lamp Current Balance ON OFF Normal Operation Shutdown (Lamp off) IL1-IL2 0 0.1 3.2 3.3 0 - 10 Open Lamp Volt. Vopen Vin=13V, 0degC 1600 - 11 Efficiency - Vin=13V,maximum brightness 75 - 12 Strike Lamp time Delay Time for Open 13 Lamp Protection /each lamp 14 Audible Noise Ts Topen Vin=13V, ON/OFF=0V Vin=13V, each lamp is disconnected 30mm upon the part 40 60 -- 1000 - - Max. Unit 16.25 V - Vrms - cd/m^2 - % 60 KHz 7.9 mA 0.2 V 3.3 V 3.3 V +/-0.5 mA -- Vrms - % 80 ms ms 34 dBm 5.2 Pin Assignments 5.2.1 Output Connector#1 (P803 / DC020155100 CM998F POW-LOG-AUD 10P P2.0) Pin No. 3,4,5 7 6 1,2 8 9 10 Symbol GND Brightness Enable Vcc NC GND +5Vaud Description Common Ground Brightness adjustable range: For Fujutsu pane :0V ~ 3.3V Backlight ON/OFF control OFF:-0.3~1.0V, ON:2.0~5.5V +5Vdc supply to mainboard NC GND for Audio +5Vaud for Audio 5.2.2 Output Connector#2 (for CCFLs , J940,J980,J941,J981) Connector type: ACES 88225-0211 P8.0 or alternative Pin No. Symbol Description 1 HV High Voltage 2 LV Low Voltage 27