Toshiba MW26G71 Service Manual page 97

A B
8
7
FROM/TO CHROMA/PROGRESSIVE/PIN
SOUND+B
SOUND_GND
6
FROM/TO REGULATOR
GND
ZERO
P.CON+5V
P.CON+9V
5
FROM/TO TV MICON
TV_POWER_H
TV_A_MUTE
AV5
SDA
SCL
4
R305
3 FROM/TO Hi-Fi
3.3K
R303
AUDIO_OUT_L
2.2K 1/4W
AUDIO_OUT_R
R302
3.3K
2
1
CAUTION ATTENTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A B
G-23
C
SOUND AMP/SURROUND SCHEMATIC DIAGRAM
SOUND AMP IC
IC351 AN7522N
+ -
L
1 2 3 4 5 6 7
10.6 6.4 0 6.4 2.8 1.6 0
HS33V6
C335
HS351
763WAA0297
0.001
B
W828
W843
R356
100K 1/4W
C370
0.1 B
W845
MUTE SW
0 Q353
4.2
KRC103SRTK
0
R350 D351
0 0
2.2K 1SS133
AV SW
1/4W
Q354
0
DTC124EKA
R353
22K 1/4W
R359 D350
2.2K 1/4W 1SS133
C301
16V 22 KA
C314
0.033
B
NC NC
4.2 1.9 4.6 0 0 4.1 4.2 4.2
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
2.5 7.8 4.6 3.9 0 0 3.9 4.0
NC NC
L301
100uH 0607
:LES PIECES REPAREES PAR UN ETANT
NOTE:THE DC VOLTAGE EACH PART WAS
DANGEREUSES AN POINT DE VUE SECURITE
MEASURED WITH THE DIGITAL TESTER
N'UTILISER QUE CELLS DECRITES
DURING PLAYBACK.
DANS LA NOMENCLATURE DES PIECES
C
D E
(VCR PCB)
- +
R
8 9 10 11 12
1.6 10 6.4 0 6.4
C358
0.0027 B
C302
R301
0.0027 B
5.6K
R307
5.6K
Q350 MUTE SW
KTC3875S_Y_RTK
10 0
0
NC NC
0 4.4 4.0 0 0 2.3 4.0 4.5
9 10 11 12 13 14 15 16
GND NC NC
LT LB BD VD L ONT
+
Volume 2.2K
Balance
Control
/MUTE
+
NC NC
RT BLD TD R OUT SDA SCL
24 23 22 21 20 19 18 17
4.2 3.4 2.3 0 NC 0 NC 4.5 5.02 5.02
R309
100 1/4W
R310
100 1/4W
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
21 20
CP303
A2502WR2-4P
C324
SOUND L+
C320
470P CH
SOUND L-
C313
470P CH
SOUND R-
C332
470P CH
SOUND R+
470P CH
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
SP351 S0509F55-C
SPEAKER
(L)
5
4 4
3 3
2 2
1 1
(R)
4
3
2
PCB010
DME022
1
H
G-24