Philips PL22.06 - Video;Audio Block Diagram

9-2
2. Video/Audio Block Diagram
DIGITAL AUDIO OUT (OPTICAL)
DIGITAL MAIN CBA UNIT
TO SYSTEM CONTROL BLOCK DIAGRAM
TO SYSTEM CONTROL BLOCK DIAGRAM
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
VIDEO SIGNAL
AUDIO SIGNAL
CVBS- AUDIO(L)-IN CVBS- AUDIO(R)-IN
JK3706
Q3803
MUTE
HP(L)
HP(R)
SPDIF
HP-DET
HP-MUTE
Q3805
Q3804
MUTE
MUTE
DRIVE
DIF-OUT1 DIF-OUT2
IF-AGC
IC9001
10
22
11
IF-AGC
5
OUTPUT I/F
DSP /FILTER
PGA ADC
RF AGC
JK9301 ANT-IN
(DIGITAL/ANALOG TV TUNER)
CVBS- VIDEO-IN
JK3705
CVBS-VIDEO-IN
SP-MUTE
CN3801
AUDIO(L)-OUT
AUDIO(R)-OUT
2SP(L)- 1SP(L)+
HEADPHONE JACK
JK3708
CVBS-AUDIO(L)-IN
CVBS-AUDIO(R)-IN
SP3801 SPEAKER L-CH
1 2 3
25 23
POWER STAGE
POWER LIMIT
GAIN CONTROL AMP
POWER STAGE
MODULATOR
18 20
12
IC3801 (AUDIO AMP)
CONTROL LOGIC
FAULT LOGIC
PWM LOGIC
POWER LIMIT
GAIN CONTROL AMP
MODULATOR
PWM LOGIC
SP(R)-
SP(R)+
PL22.06BLVA