ViewSonic VA2016W Service Manual - Page 41
ViewSonic Corporation, U701 Audio amplifierTDA7496L, SYMBOL, DESCRIPTION, 4. IC501 OZ9910G - driver
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6.3 U701 (Audio amplifier)TDA7496L SYMBOL PIN DESCRIPTION GND 1 Ground GND 2 Ground GND 3 Ground Signal L 4 Signal input left VAR out 5 VAR output VOLUME 6 DC volume control VAR out 7 VAR output NC 8 Not connected Signal R 9 Signal input right SVR Supply voltage 10 rejection STBY 11 Standby MUTE 12 Sound mute GND 13 Ground OUTR 14 Audio output right VS 15 Power supply VS 16 Power supply OUTL 17 Audio output left GND 18 Ground GND 19 Ground GND 20 Ground 6.4. IC501 (OZ9910G, CCFL Inverter controller IC) Pin Symbol 1 NDRV2 I/O Description O Bottom MOSFET gate drive output in dual forward converter 2 PGND High-current power ground 3 NDRV1 O Bottom MOSFET gate drive output in dual forward converter 4 GNDA Low-current signal ground 5 CT I Timing capacitor of high frequency oscillator 6 LCT I Timing capacitor to set LPWM frequency 7 DIM I Control command input -- DC 8 ENA I Enable input 9 VSEN I Voltage sense feedback 10 CMP_SST I Soft start and loop compensation capacitor 11 ISEN I Current sense feedback 12 V5000 O Reference voltage output 13 VIN I Supply voltage for IC 14 HSB I High side driver buffer output 15 PDRV1 O Top MOSFET gate drive output in dual forward converter 16 PDRV2 O Top MOSFET gate drive output in dual forward converter ViewSonic Corporation 38 Confidential - Do Not Copy VA2016w-2