Toshiba MD9DM3 Service Manual page 54

A B
8
7
6
FROM POWER
SOUND+B
SOUND_GND
GND
5
FROM MICON/TUNER
R302
POWER_ON_H
68K
VOL_PWM
A_MUTE
4
FROM AV SW
MONITOR_A_R
MONITOR_A_L
3
2
1
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
A B
G-15
C D
SOUND AMP SCHEMATIC DIAGRAM
SOUND AMP IC IC302 AN7522
+ - -
L R
1 2 3 4 5 6 7 8 9 10
8.56 3.68 0 3.71 4.14 4.15 0 1.45 1.26 3.74
W851
C307 C348
0.01 0.01
HS301
B B
763WAA0199
0
R346
0 MUTE
R344
Q301
100
2SC2412K
100
0.4
R323
W820 W817 0
R345
47K
0
100
0
R316
47K 1/4W
W814
W815 W848
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
E
(AV PCB)
+
11 12
0 3.93
37 38
C340
1 B
0
0
MUTE
Q304
0
2SC2412K
C337
W840
MUTE 1 B
Q303
2SC2412K
R324
5.6K
R325
10K
ATTENTION: LES PIECES REPAREES PAR UN
CAUTION: SINCE THESE PARTS MARKED BY ARE
DANGEREUSES AN POINT DE VUE SECURITE
CRITICAL FOR SAFETY,USE ONES
N'UTILISER QUE CELLS DECRITES
DESCRIBED IN PARTS LIST ONLY
DANS LA NOMENCLATURE DES PIECES
E
F G
FROM/TO OPE PCB
L CH
SP301
CP301
SPEAKER
TID-X02P-M1 SA08A05BWC
1
SP OUT L+ 1
8 OHM
2
SP OUT L- 2
R CH
CP302
SPEAKER
TID-X02P-M1
1
SP OUT R+ 1
8 OHM
2
SP OUT R- 2
SP302
SA08A05BWC
7
6
R342
C301
2
C305
16V 47 KA R337 100 1/2W
HEADPHONE JACK
3
J301
16V 47 KA 100 1/2W
4
HSJ2000-01-010
5
1
C354
C355 0.0022 B
0.0022 B
DIGITAL AUDIO SIGNAL(PB)
ETANT
TUNER AUDIO SIGNAL
F G
H
8
7
6
5
4
3
2
PCB250
TMX486
1
H
G-16