ASRock H81TM-ITX User Manual - Page 28
Signal Name, pin BLT_VOL1
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Page 28 highlights
Consumer Infrared Module Header (7-pin CIR1) (see p.9, No. 4) Serial Port Header (9-pin COM1) (see p.9, No. 14) LPC Debug Header (13-pin LPC1) (see p.9, No. 24) Backlight & Amp Volume Control Header (8-pin BLT_VOL1) (see p.9, No. 13) Digital MIC Header (5-pin DMIC1) (see p.9, No. 17) CIR input +5VA Learn-in LED 1 +5VA IRTX GND This header can be used to connect the remote controller receiver. RI RTS GND TXD DCD 1 NC CTS DSR DTR RXD This COM1 header supports a serial port module. PIN Signal Name PIN Signal Name 14 +3V 13 No pin 12 +3V 11 +3V 10 GND 9 GND 1 8 LAD3 7 LAD2 6 LAD1 5 LAD0 4 LFRAME# 3 RESET# 2 GND 1 CLK 1 1 1: BKLT_EN 2: BKLT_PWM 3: BKLT_PWR 4: BKLT_PWR 5: GND 6: GND 7: Brightness_Up 8: Brightness_Down 1: +5V 2: No pin 2: SPDIF_OUT/DMIC_ CLK 3: GND 4: DMIC_DATA 5: +3.3V English 24
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