Vizio VX37L HDTV10A Service Manual page 51

TDA8946
In L32 TV the TDA8946AJ is a dual-channel audio power amplifier with DC gain control. It
has an output power of 2
Block diagram
1. Input configuration
The TDA8946AJ inputs can be driven symmetrical (floating) as well as asymmetrical. In
the asymmetrical mode one input pin is connected via a capacitor to the signal source and
the other input is connected to the signal ground. The signal ground should be as close as
possible to the SVR (electrolytic) capacitor ground. Note that the DC level of the input pins
is half of the supply voltage VCC, so coupling capacitors for both pins are necessary.
CONFIDENTIAL DO NOT COPY
–
 1 0 W at an 8  l oad and a 12 V supply.
Page 7-20
File No. SG-0209