Sharp LC-32A40L Service Manual page 41

A B
8
7
FROM STEREO
6
SP_AUDIO_OUT_R
SP_AUDIO_OUT_L
FROM POWER
5
GND
SOUND_GND
SOUND+B
AT+5V
POWER_FAIL
4
FROM SWITCH/AMP
POWER_ON-H
AUDIO_MUTE
3
4.8
R325
0
1K
0
2
CAUTION
1
A B
H-9
C
SOUND AMP/HEADPHONE AMP SCHEMATIC DIAGRAM
C301
390P CH
3
R304 C320
1K 50V 1 KANP
W886
2
C319
R302
1K 50V 1 KANP
0
R311
3.0
SW
10K
Q300 0
KTC3875S_Y_RTK
R324
47K
W884
C304
0.1 B
0
SW
4.8
Q302
KTC3875S_Y_RTK
SW 0
Q301
KTC3875S_Y_RTK
W910 W911
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
C
D E
(AV PCB)
SOUND AMP IC
IC301 TA2024-ASE
24.0
5.5 C337
+5VGEN CPUMP
50V 1 KANP
0
23.0
DCAP2 PGND1
0
14.0
DCAP1 NC NC
C338
11.0
5.5
0.1 B
VD5 VDDA
0
0
AGND1 NC NC
6.0
R317 0
REF OUTP1
8.2K
11.0
+-1% 0 C339
NC OVERLOADB VDD1
0.1 B
11.0 C340_1
0
AGND2
VDD1
25V 820 FM
6.0
5.5
V5A OUTM1
6.0
R318 2.5
OAOUT1
OUTM2
22K
11.0
R314 2.5 C341
INV1 VDD2
0.1 B
22K
11.0
C342_1
0
MUTE VDD2
25V 820 FM
6.0
0
NC OUTP2
NC
2.5 0
R319
OAOUT2 NC
NC
22K
2.5 0
R315
INV2
DGND
22K
2.5 0
C332
BIASCAP NC NC
0.1 B
0 0
C323
AGND3 PGND2
0.1 B
0 0
SLEEP FAULT NC
HS78
HS300
763WAAA066
NC
ETANT NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
4
L300
10uH7313N
CP303
A2502WV2-2P
5
L301
10uH7313N
L302
CP301
10uH7313N
A2502WV2-3P
6
NC
7
L303
10uH7313N
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.
F G
H
8
7
TR301
W5T29X7.5X19 4 OHM 10W
(L)
CD303
SPEAKER
CU128001
SP302
SP OUT L+ 2 1
EAS12D175B
SP OUT L- 1 2
CD301 6
CU123401
SPEAKER
SP OUT R- 3 1
SP301
NC 2 2
EAS12D175B
SP OUT R+ 1 3
(R)
4 OHM 10W
5
4
3
2
PCBD20
CMF091
1
H
H-10