Table of Contents
Advertisement
[SYSCON PCB SOUND AMP CIRCUIT DIAGRAM]
A
B
C
8
7
6
FROM/TO CHROMA/IF
SOUND+B
SOUND_GND
FROM/TO I/O
SOUND_GND
FROM/TO MICON
TV_POWER_H
5
TV_A_MUTE
SDA
SCL
FROM/TO HIFI
AUDIO_OUT_R
AUDIO_OUT_L
4
3
FROM/TO POWER
2
P.CON+9V
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
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
HS352
763WAA0027
C350
50V
0.1
KA
B301
BL01RN1-A63
R353
R359
68K
47K
C302
R306
0.033 B
1.8K
R303
C312
C304
0.022 B
R316
2.7K
50V
2.2
KA
C306
2.7K
0.47 B
4.4
4.4
4.4
4.4
4.3
4.3
4.4
0
1
2
3
4
1
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
50V
2.2
KA
C305
C307
R318
100
0.022 B
0.47 B
C303
R307
0.033 B
1.8K
L302
100uH
0607
CAUTION:
SINCE THESE PARTS MARKED BY
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
No.51768
TV-20F242
TV-20F242
D
E
(SYSCON PCB)
+
9
10
11
12
1.3
6.6
3.5
0
3.5
6.3
0
MUTE SW
0
Q350
2SC2412K
SDA
SCL
D301
MTZJ13B
D302
MTZJ13B
C318
100P CH
C319
10.5
1.6
100P CH
9
0
I2C BUS
INTERFACE
CONTROL
LOGIC
12
11
5.2
5.2
C308
0.001 B
C309
16V YK
47
C310
0.022 B
L301
C317
P.CON+5V
0.1 MMTS
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
2-21
2-22
F
G
FROM/TO I/O
SOUND_R+
W874
SP_OUT_R
W873
SP_OUT_L
SOUND_L+
ETANT
NOTE:
THE RESISTOR MARKED F IS FUSE RESISTOR.
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
F
G
No.51768
H
8
7
6
5
4
3
2
AUDIO SIGNAL(REC)
PCB010
VMX188
1
H
Hide quick links:
Advertisement
Table of Contents
