Stereo - Toshiba MD9DN1 Service Manual

A B
8
W862
C940
50V 2.2 KA
6.5 4.6 6.4
1 2
7
8 7
0 5.7 12.3
6
5
4
3
2
1
A B
C
STEREO SCHEMATIC DIAGRAM
W868
W867
C942 C922
W871
50V 2.2 KA 50V 2.2 KA
NC NC
0 6.5 4.6 6.4 0
3 4 1 2 3 4
6 5 8 7 6 5
NC
6.5 0 5.7 12.3 6.5
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)
C920
50V 2.2 KA
3.0
BUFFER
C949
2.2
Q901
KTA1504S_Y_RTK
50V 10 YK
0
C948
50V 10 YK
L904 D901
100uH 1SS133
0305
R911
100 1/4W
R908
270
NC
2.2 2.2 2.2 2.2 0 4.2 4.4 0 3.7
24 23 22 21 20 19 18 17 16 15
GND
OUT SW DAC ZAP IIC Decoder St.PLL
AGC
Pilot
Switch L-R Filter L-R Demod Cancel
Matrix
De-Emph (L-R)/SAP Pilot
Filter
75us L+R Filter L+R Demod

Stereo

Filter
Cancel
SAPout
Offset fH.2fH Trap Filter Filter
Wide Band
Expand
Cancel
Wide Band
RMS Det Expand
Offset dbx De-Emph
Wide Band Spectral
Vcc
1 2 3 4 5 6 7 8 9 10
1.0 2.2 2.2 2.3 2.4 0.7 5.1 2.6 2.6
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
- 17 -
F G
3.0
BUFFER
2.2
Q902
KTA1504S_Y_RTK
0
FROM/TO MICON/TUNER
AV1
40
TUNER_AUDIO
SCL
R912
SDA
100 1/4W
TO SOUND AMP
41 P.CON+12V_A
A_OUT_L
A_OUT_R
42
FROM/TO IN/OUT
AUDIO_OUT_L
3.4 2.2
3.4
AUDIO_OUT_R
14 13
DVD_AUDIO_L
Det VCA Det
Input SAP
DVD_AUDIO_R
FRONT_A_IN_R
Filter Filter
Noise SAP
FRONT_A_IN_L
Demod
Filter
SAP
Spectral
RMS Det Det
Spectral Noise
11 12
0.6 2.2 3.6
FROM REGULATOR1
P.CON+5V
P.CON+12V
GND
TUNER AUDIO SIGNAL
AUDIO SIGNAL(PB)
AUDIO SIGNAL
F G
H
8
7
6
5
4
3
2
PCB250
TMB560
1
H