Toshiba 27a43 Service Manual page 25

A B
8
FROM TUNER/STEREO
23
SW_AUDIO_L
7
R301
22
SW_AUDIO_R
2.7K 1/4W
6
FROM CHROMA
5 L301
P.CON+8V[B]
100uH 0305
FROM/TO COMBI/FILTER
GND
FROM/TO MICON
SDA
SCL
4
TV_MUTE
FROM POWER
SOUND+B
GND
3
P.CON+12V
SOUND_GND
W858
2
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
1
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
A B
G-9
C D
SOUND SCHEMATIC DIAGRAM
R302
2.7K 1/4W
C309
0.039
B
NC NC
3.9 1.6 3.9 3.9 3.9 0 3.9 3.9
0 0 3.9
1 2 3 4 5 6 7 8 9 10 11
NC NC PF4 GND
PF1 AGC L IN PF2 PF3 LT
Tone
Volume 2.2K
AGC SURR
+
Control
Control
MODE
control VCC R IN Vref
NC NC BB RB RT BLD TD
32 31 30 29 28 27 26 25 24 23 22
4.8 4.8 3.9 0 0 0 8.9 3.9 3.9 3.9 0
NC NC
SOUND AMP IC
IC1001 AN5276
+
+
-
-
ATT.CONT.
+ ATT. +
VOL
RIPPLE
FILTER
CH1 CH2 CH2 STAND
NC GND VOL MUTE GND VCC
RF
IN IN OUT -BY
1 2 3 4 5 6 7 8 9 10 11
0 18.6 0 0 0 9.2 0.7 0 19.7 11.4
NC
W803
R1013
10K
R1009
MUTE
10K 1/4W
Q1001
KRC111SRTK
3.6
0
0
CAUTION
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
(MAIN PCB)
W832
NC NC
0 0 1.9 3.4 3.9
12 13 14 15 16
NC NC
LB BD VD L ONT
+
Balance
/MUTE
+
NC NC R OUT SDA SCL
21 20 19 18 17
0 0
3.9 1.8 0.5
NC NC
R303
100 1/4W
R304
100 1/4W
W831
25 24
CH1
OUT
12
9.2
C1001
R1003
15K 50V 0.1 YK
C1002
R1004
YK
15K 50V 0.1
W833
26
W834
27
HS1001
763WAA0215
:SINCE THESE PARTS MARKED BY ARE ATTENTION
:LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
E
F G
W/CONECTOR.2SPEAKER
SPEAKER
CP1001
SP1001_1
A2502WV2-4P
S0509F12-F
4 4
8 OHM 2.5W
3 3 (L)
2 2
1 1
8 OHM 2.5W
(R)
CAUTION: DIGITAL TRANSISTOR
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
7
6
5
4
3
2
PCB010
TMC559
AUDIO SIGNAL
1
H
G-10