Sound Amp Schematic Diagram - Toshiba MV20FK3 Service Manual

A B
8
7
FROM/TO CHROMA/IF
B301
SOUND+B
BL01RN1-A63
6
SOUND_GND
FROM/TO I/O
SOUND_GND
FROM/TO MICON
R353
TV_POWER_H
R359
68K
5
TV_A_MUTE
47K
SDA
SCL
FROM/TO HIFI
AUDIO_OUT_R
R316
AUDIO_OUT_L
4
3.3K
3
FROM/TO POWER
L302
2
P.CON+9V
100uH
0607
P.CON+5V
W840
GND
1
NOTE: NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
THE DC VOLTAGE AT EACH PART WAS MEASURED
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.
A B
C

SOUND AMP SCHEMATIC DIAGRAM

SOUND_AMP
IC352 AN7522
+ -
L R
1 2 3 4 5 6 7 8
6.6 3.5 0 3.5 3.9 1.3 0 1.3
HS352
763WAA0027
C350
50V 0.1 KA
C302 R306
0.033 B 1.8K
R303 C312
3.3K 50V 2.2 KA C304 C306
0.022 B 0.47 B
4.4 4.4 4.4 4.4 4.3 4.3 4.4 0 10.5
1 2 3 4 5 6 7 8
VR5
1.8K VR3 TONE
136K
AMP1
+
REF
-
+
VR1
-
SIMAMP1
+
-
REF VOLAMP1 6.5K
6.5K 6.5K
VOLAMP2
+
REF
- -
SIMAMP2
+
6.5K
VR2
-
+ TONE
136K
1.8K VR4 AMP2
VR6
20 19 18 17 16 15 14 13
C311 8.9 4.4 4.4 4.4 4.3 4.3 4.4 0
R318
50V 2.2 KA
C305 C307
100
0.022 B 0.47 B
C303 R307
C317
0.033 B 1.8K
0.1
MMTS
CAUTION: SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
C
D E
(SYSCON PCB)
- +
9 10 11 12
6.6 3.5 0 3.5
MUTE SW
Q350
2SC2412K
SDA
SCL
C318
100P CH
C319
1.6
100P CH
9 10
I2C BUS
INTERFACE
CONTROL
LOGIC
12 11
5.2 5.2
C308
0.001 B
C309
16V 47 YK
C310
0.022 B
L301
P.CON+5V
100uH 0607
ARE
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
W874
W873
6.3
0
0
AUDIO SIGNAL(REC)
ETANT
F G
H
8
7
FROM/TO I/O
SOUND_R+
SP_OUT_R
SP_OUT_L
SOUND_L+
6
5
4
3
2
PCB010
VMX188 1
H