Toshiba 20AF46 Service Manual page 32

A B
8
FROM TUNER/STEREO
7 SW_AUDIO_L
22
SW_AUDIO_R
6
FROM CHROMA
5
P.CON+8V[B]
P.CON+8V[A]
FROM COMBI FILTER/AV
P.CON+8V[A]
GND
FROM/TO MICON
SDA
SCL
4
VOLUME
TV_MUTE
FROM POWER
SOUND+B
3 GND
W859
SOUND_GND
S801Y
2
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-9
C
SOUND SCHEMATIC DIAGRAM
R302
23
R301 2.7K 1/4W
2.7K 1/4W
C309
0.039 B
NC NC
3.9 1.7 3.0 0 0 3.9 3.9 3.9 0
1 2 3 4 5 6 7 8 9
NC NC PF4 GND
PF1 AGC L IN PF2 PF3
Tone
AGC SURR
+
Control
MODE
control VCC R IN Vref NC NC
BB RB RT
32 31 30 29 28 27 26 25 24
2.3 7.9 4.5 4.0 0 0 4.0 4.0 4.4
NC NC
L301
100uH 0305
24
W862
R1002
47K 1/4W
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
(MAIN PCB)
NC NC
4.0 4.0 0 0 2.0 2.9 4.0
10 11 12 13 14 15 16
NC NC
LT LB BD VD L ONT
+
Volume 2.2K
Balance
Control
/MUTE
+
NC NC
BLD TD R OUT SDA SCL
23 22 21 20 19 18 17
3.0 2.0 0 0 4.0 3.5 3.5
NC NC
R303
100 1/4W
R304
100 1/4W
25
SOUND AMP IC IC1001 AN7522N
+ - -
L R
1 2 3 4 5 6 7 8 9 10 11
6.3 8.5 0 8.6 3.9 2.4 0 2.5 2.1 0
8.5
C1003
1 B
HS1001
763WAA0295
ATTENTION
:LES PIECES REPAREES PAR UN
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
C1011 R1012
C1012
16V 47 KA 150 1/2W R1013
16V 47 KA 150 1/2W
+
12
8.5
W858
CD1001
CP1001
CU14411A
A2502WV2-4P
SP OUT L+ 4 4
SP OUT L- 3 3
SP OUT R- 2 2
SP OUT R+ 1 1
26
27
CAUTION CAUTION: DIGITAL TRANSISTOR
:SINCE THESE PARTS MARKED BY ARE
ETANT
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F G
H
8
7
6
5
4
HEADPHONE JACK
J1001
7
MSJ-2000_AG
6
2
3
4
5
1
3
SPEAKER
SP1001
YDP512-22
L
8 OHM
SPEAKER
SP1002
YDP512-22
R
8 OHM
2
PCB010
CME017
1
H
20AF46/20AF46C
G-10