Changhong Electric PF2939, Руководство по обслуживанию, Страница: 15 / 47

SERVICE MANUAL
TA1343N
TV Sound Processor
TA1343N is a sound processor controlled by I2C
bus. It
incorporates the following: 2-channel input,
3-channel output
signal processing circuit, phase shift circuit for
surround, and LPF for woofer channel.
ALS (Automatic Level Suppresser) circuit which
prevents distort
Weight : 1.22g (Typ.)
the signal in large signal condition for woofer
channel is also
incorporated
1. Features
 Surround circuit
Phase shift surround system
2 modes stereo surround
Pseudo stereo mode
 Sound processing circuit
2ch inputs (Lch, Rch)
3ch outputs (Lch, Rch, Wch)
Input matrix switch
Volume control
Bass, treble, and balance adjustment
Woofer level and surround effect level adjustment
ALS (Automatic Level Suppresser) circuit
Built-in LPF for bass boost
2. Block Diagram
Fig.7
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