Philips 43PFL4901/F7 - Page 35

9-2
2. Video/Audio Block Diagram
CN3801
3SP(R)-
4SP(R)+ 2SP(L)- 1SP(L)+
1 2 3
13 14 15
12
VIDEO SIGNAL
1 2 3
25 23
DRIVE DRIVE
18 20
DRIVE DRIVE
12
JK3701
JK3703
(HEADPHONE AMP) IC3851
2 8
3 7
6dB
6dB
JK3704
JK3713 PC-RGB-IN
AMP-MUTE COMP-DET
TO SYSTEM CONTROL BLOCK DIAGRAM
AMP(L)-OUT
AMP(R)-OUT
DIF-OUT1
DIF-OUT2
IF-AGC
TO DIGITAL SIGNAL PROCESS BLOCK DIAGRAM
VGA-R-IN
VGA-G-IN
VGA-B-IN
VGA-HSYNC
VGA-VSYNC
VGA-SCL
VGA-SDA
AUDIO(L)-IN
AUDIO(R)-IN
HP(L)
HP(R)
SPDIF
COM-VIDEO-Y/VIDEO-IN
COM-VIDEO-Pr-IN
COM-VIDEO-Pb-IN
SP3802 SPEAKER R-CH SP3801 SPEAKER L-CH
AUDIO(L)-IN AUDIO(R)-IN DIGITAL AUDIO-OUT (OPTICAL)
COMPONENT -Y/VIDEO-IN COMPONENT -Pb-IN COMPONENT -Pr-IN JK3801 HEADPHONE JACK
IC3801 (AUDIO AMP)
DIGITAL MAIN CBA UNIT
CONTROL LOGIC
POWER LIMITER POWER LIMITER
LEVEL DETECTOR
LEVEL DETECTOR
AUDIO SIGNAL
IC9001
10
22
11
(SILICON TUNER)
IF-AGC
4
OUTPUT I/F
DSP /FILTER
PGA ADC
RF AGC
JK9301 ANT-IN
Q3704,Q3705
BUFFER
PL15.13BLVA