Toshiba 24AF42 Service Manual page 24

A B
8
FROM AV
SW_AUDIO_R
SW_AUDIO_L
7
6
5
FROM/TO MICON/TUNER
SCL
SDA
4
BBE_SW
TV_MUTE
FROM POWER
P.CON+5V
P.CON+9V
SOUND+B
GND
3
SOUND_GND
2
1
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.
A B
C
SOUND SCHEMATIC DIAGRAM
22 R314
23 8.2K R324
1.8K
C332
C331 0.47 B
0.022
B
5.0 5.0 5.0 5.0
1 2 3 4
1.8K VR3
136K
+
REF
-
VR1
SIMAMP1
+
- VOLAMP1
REF
6.5K
VOLAMP2
+
REF
-
SIMAMP2
6.5K
VR2
-
+
136K
1.8K
20 19 18 17
10.0 5.0 5.0 5.0
C330 C333
0.022 B 0.47 B
R320
8.2K
R325
1.8K
L301
47uH
SOUND AMP IC
IC1001 AN5276
+
-
ATT.CONT.
+ ATT. +
RIPPLE
FILTER
CH1 CH2 CH2 STAND
NC GND NC MUTE GND VCC
RF
IN IN OUT -BY
1 2 3 4 5 6 7 8 9 10
0 0 13.9 0 0 0 6.7 0.7 0 14.9
NC
R1013
10K
R1009
MUTE
Q1001
10K
KRC111SRTK
3.6
0
0
HS1001
763WAA0215
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME CAUTION:
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(MAIN PCB)
C334
0.033 B
R326
100 1/4W
R328
100
4.8 4.7 4.8 0 4.8 4.7
5 6 7 8 9 10
VR5
TONE
R301 C306
AMP1
I2C BUS
INTERFACE
+
20K 0.0033
-
B
6.5K
6.5K
- CONTROL
+
LOGIC
4.8 4.8 4.8 4.8
TONE 1 2 3 4
VR4 AMP2
VR6
16 15 14 13 12 11
4.8 4.7 4.8 0 5.0 4.9
C339
0.01 B
20 19 18 17
C303
C335
4.8 4.8 4.8 4.8
0.033 B 16V 47 YK
R302
R327
20K C307
0.0033 B
100K
+
-
24
25
CH1
OUT
11 12
12.1 6.7
C1001
R1003
330 50V 10 YK
C1002
R1004
330 50V 10 YK
26
27
SINCE THESE PARTS MARKED BY ARE ATTENTION: LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
R303 C308
20K 0.033
B
R335
1K 1/4W
4.8 4.8 4.8 0 8.9 8.9
5 6 7 8 9 10
BBE
16 15 14 13 12 11
4.8 4.8 4.8 4.8 9.5 0
R304
20K C309
0.033 B
SPEAKER
CP1001
A2502WV2-4P
SP1001
SG05K07BRA
4
4
8 OHM 5W
3
3 (L) 2.5W
2 SPEAKER
2
1 SP1002
1
SG05K07BRA
8 OHM 5W
CD1001
2.5W
(R)
CU14411A
HEADPHONE JACK
J1001
MSJ-2000
7
6
R1002
2
R1001 390 1/2W
3
390 1/2W
4
5
1
CAUTION: DIGITAL TRANSISTOR
ETANT
F G
H
8
7
6
5
4
3
2
PCB010
TMA532
1
AUDIO SIGNAL
H