Toshiba MD20FP3 Service Manual page 48

A B
8
7
C941
50V 2.2 KA
6
5
4
3
2
1
A B
G-19
C D
STEREO SCHEMATIC DIAGRAM
C943
50V 2.2 KA
L904
100uH 0305
2.2 2.2 2.2
24 23 22
AGC OUT SW
Matrix De-Emph
(L-R)/SAP
75us
Filter
Cancel
SAPout
Offset
Expand
Cancel
Wide Band
Offset
1 2 3
1.0 2.2 2.2
L901
100uH 0305
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C D
E
(AV PCB)
40
41
42
R908
270
NC
2.2 0 4.2 4.4 0 3.7 3.4 2.2
3.4
21 20 19 18 17 16 15 14 13
GND
DAC ZAP IIC Decoder St.PLL Det VCA Det
Pilot Input SAP
Cancel
Switch L-R Filter L-R Demod
Pilot
Filter Filter Filter
L+R Filter L+R Demod Stereo Noise SAP
Demod
Filter Filter
fH.2fH Trap Filter
SAP
Wide Band Spectral
RMS Det Expand RMS Det Det
dbx De-Emph
Wide Band Spectral Spectral Noise
Vcc
4 5 6 7 8 9 10 11 12
2.3 2.4 0.7 5.1 2.6 2.6 0.6 2.2 3.6
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
E
F G
NC
6.3 0 6.4 0.3
1 2 3 4
8 7 6 5
0 5.6 12.0 0.3 NC
NC
6.3 0 6.4 0.3
1 2 3 4
8 7 6 5
0 5.6 12.0 0.3
NC
C924
16V 10 KA
C923
16V 10 KA
TUNER AUDIO SIGNAL
AUDIO SIGNAL
AUDIO SIGNAL(PB)
F G
H
8
7
FROM/TO MICON/TUNER
TV/DVD 6
TUNER_AUDIO
SCL
SDA
TO SOUND AMP
A_OUT_L
5
A_OUT_R
4
FROM/TO IN/OUT
AOUDIO_OUT_L
AUDIO_OUT_R
REAR_A_IN_L
REAR_A_IN_R
DVD_AUDIO_L
DVD_AUDIO_R 3
FRONT_A_IN_R
FRONT_A_IN_L
FROM REGULATOR1
P.CON+5V
P.CON+12V
P.CON+9V
2
GND
PCB250
TMB561
1
H
G-20