Toshiba 19LV505 Service Manual page 119

A B
8
7
6
FROM JACK OUT
LOUT_SOUND
ROUT_SOUND
5
FROM POWER
FILTER_MUTE
SOUND+B
POWER_ON_H
4
SOUND_GND
GND
AT+5.8V
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-57
C
SOUND AMP SCHEMATIC DIAGRAM
SOUND AMP IC
IC301 LA42052-E
Ripple
IN1 GND IN2 STB P.P Vcc
Filter
1 2 3 4 5 6 7
7.4 1.6 0 1.6 1.6 10.3 14.0
C303
C301 1 B
1 B
S803X
R302
6.8K 1/4W
5.8
SW
R314
5.8
5.8 Q302
KRC102SRTK
1.6 SW 470 1/4W
Q301 3.0
KTA1504S_Y_RTK
0
CAUTION
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
(POWER PCB)
OUT2 NC GND NC OUT1 NC
8 9 10 11 12 13
7.4 NC 0 NC 7.4 NC
W823
15
R304 R306
2.2K 2.2K
R305 R307
16
2.2K 2.2K
W820
C319 C320
B303
0.0068 B 0.0068 B HCB3216KF-391T20
W824
W827
W803
HS301
763WSA0064
ATTENTION
:SINCE THESE PARTS MARKED BY ARE :LES PIECES REPAREES PAR UN
CRITICAL FOR SAFETY,USE ONES DANGEREUSES AN POINT DE VUE SECURITE
DESCRIBED IN PARTS LIST ONLY N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
HEADPHONE JACK
R308
J301
1K 1/4W
PJ-364H
5
L
4
R309
B308
2
HCB3216KF-391T20
R310 1K 1/4W
B307
3
HCB3216KF-391T20
1K 1/4W
6
R
7
R311
1
1K 1/4W
CD301 E8142403
SP OUT L 4 4
GND 3 3
GND 2 2
SP OUT R 1 1
CAUTION: DIGITAL TRANSISTOR
ETANT
F G
H
8
7
6
5
SPEAKER
SP301
S0308F01
SPEAKER
SP302
S0308F01
4
3
2
PCB240
CEG362
1
H
22LV505
H-58