Sound - Toshiba 14AF46 Service Manual

A B
8
FROM TUNER/STEREO
SW_AUDIO_L
SW_AUDIO_R
7
6
FROM CHROMA
P.CON+8V[B]
P.CON+8V[A]
5
FROM COMBI FILTER/AV
P.CON+8V[A]
GND
FROM/TO MICON
SDA
SCL
VOLUME
TV_MUTE
4
FROM POWER
SOUND+B
GND
W859
SOUND_GND
W870
3
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 D
SOUND SCHEMATIC DIAGRAM
23 R302
C309
R301 2.7K 1/4W
22
0.039
2.7K 1/4W
B
NC NC
3.9 1.7 3.0 0 0 3.9 3.9 3.9
1 2 3 4 5 6 7 8
NC NC PF4
PF1 AGC L IN PF2 PF3
Tone
AGC SURR
+
Control
MODE
control VCC R IN Vref
NC NC BB RB
32 31 30 29 28 27 26 25
2.3 7.9 4.5 4.0 0 0 4.0 4.0
NC NC
L301
100uH 0305
R1002
W862
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
0 4.0 4.0 0 0 2.0 2.9 4.0
9 10 11 12 13 14 15 16
GND NC NC
LT LB BD VD L ONT
+
Volume 2.2K
Balance
Control
/MUTE
+
RT BLD TD NC NC R OUT SDA SCL
24 23 22 21 20 19 18 17
4.4 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
24
+ - -
L R
1 2 3 4 5 6 7 8 9 10
6.3 8.5 0 8.6 3.9 2.4 0 2.5 2.1 0
8.5
C1003
1 B
HS1001
763WAA0295
CAUTION
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
E
F G
C1011 R1012
C1012
16V 47 KA 120 1/2W R1013
16V 47 KA 120 1/2W
+
11 12
8.5
W858
CD1001
CP1001
CU146901
A2502WV2-4P
SP OUT L+ 4 4
SP OUT L- 3 3
SP OUT R- 2 2
SP OUT R+ 1 1
27
26
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F G
H
8
7
6
5
HEADPHONE JACK
J1001
7
MSJ-2000_AG
6 4
2
3
4
5
1
SPEAKER
SP1001
YDP47-18
L
8 OHM
3
SPEAKER
SP1002
YDP47-18
R
8 OHM
2
PCB010
CME017
1
H
14AF46/14AF46C
G-10