Toshiba MD20FM1 Service Manual page 47

A B
8
7
6
5
4
3
2
1
A B
G-23
C D
STEREO SCHEMATIC DIAGRAM
(AV PCB)
2.2 2.2 2.2 2.2
24 23 22 21
DAC
AGC OUT SW
Switch
Matrix De-Emph
(L-R)/SAP
75us
Filter
Cancel
SAPout
Offset
Expand
Cancel
Wide Band
Offset
1 2 3 4
1.0 2.2 2.2 2.3
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C D
E F
R911
100 1/4W R912
100 1/4W
TU.AU-L
TP901
NC
47
48
46
NC 0
4.2 4.4 0 3.7 3.4 2.2
3.4
20 19 18 17 16 15 14 13
GND
Det VCA Det
ZAP IIC Decoder St.PLL
Pilot Input SAP
L-R Filter L-R Demod Cancel
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
5 6 7 8 9 10 11 12
2.4 0.7 5.1 2.6 2.6 0.6 2.2 3.6
TUNER AUDIO SIGNAL
E F
G H
FROM/TO MICON/TUNER
SCL
SDA
FROM/TO AV SW
TUNER_A_L
TUNER_A_R
FROM/TO VIF/SIF/CHROMA
TU_AUDIO
FROM/TO POWER
P.CON+A5V
GND
PCB250
TMA503
G H
8
7
6
5
4
3
2
1
G-24