Sharp LC-32DV200E Service Manual page 56

A B
8
7
FROM/TO REGULATOR1
GND
SOUND+B
GND
SOUND+B
ACD
AT+6V
6
AT+3.3V
SP_AUDIO_OUT_L
FROM/TO AUDIO SWITCH
SP_AUDIO_OUT_L
SP_AUDIO_OUT_R
AT+6V
FROM/TO AV/DVD_INTERFACE
HP_IN
ZERO_MUTE
5
ACD
FROM/TO MICON
SYS_POWER_H
SYS_POWER_H
D302
DVD-H
AUDIO_MUTE
AT+3.3V
FROM/TO SCALER/AV
ZERO_MUTE
DVD-H
AUDIO_MUTE
4
SP_AUDIO_OUT_R
3
2
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-17
C
SOUND AMP/AUDIO DAC SCHEMATIC DIAGRAM
18
R305 R322 C322
1K 47K 0.47
R323 C323
4.7K 0.47 B
MUTE SW
5.9 Q307
KRA102SRTK
MUTE SW
5.8
Q308
KTC3875S_Y_RTK
5.6
5.8
MUTE SW
R306 5.8 R307
5.8
Q301
5.0 KTA1504S_Y_RTK
10K 2.2K
0 0
MA111 NS
NS
R359
3.3 3.3
4.7K
MUTE
0
Q300
KRA101SRTK
W997
19
R301 R325
1K 47K
R326
4.7K
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED ATTENTION
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
C
D E
(MAIN PCB)
C334
SOUND AMP
0.1 B
IC300 TDA8932BT
C335
0 0
VSSD/HW VSSD/HW
B301 0.1 B
HCB3216KF-391T20 4.8
3.12
IN1P OSCIO NC
B
2.08 8.8
IN1N HVP1
18.6
2.56
DIAG VDDP1
NC
C341
5.6 28
ENGAGE SCOT1
0.015 B
W999 5.52 18.6 25V(1005)
POWERUP OUT1
0
0
OGND V3BP
18.2 11.2
VDDA STR1
C360
R320
0 11.2
0.1 B
VSSA STR2
22K
4.32 0
OSCREF VSSP2
9.6 18.2
HVPREF OUT2
C340
2.16 28
INREF SCOT2
0.015
B
25V(1005)
18.6
0
NC VDDP2
NC
C324
3.12 8.8
IN2N HVP2
0.47 B
C325
2.16 5.04
IN2P DREF
0.47 B
0
VSSC/HW VSSD/HW
0
CAUTION
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
20
L300
B302 HCB3216KF-391T20
22uH B306 HCB3216KF-391T20
B307 HCB3216KF-391T20
21
B308 HCB3216KF-391T20
L301
22uH
W831
:SINCE THESE PARTS MARKED BY ARE CAUTION: DIGITAL TRANSISTOR
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
F G
H
8
7
6
CD302 SPEAKER
SP301
CP301
CH146004
A2502WR-4A
S0412F22
SP OUT L+ 1 1
SP OUT L- 2 2
SPEAKER
SP OUT R- 3 3
5
SP302
SP OUT R+ 4 4
S0412F22
4
3
2
PCBF40
CMJ159
CAUTION: DIGITAL TRANSISTOR
1
H
H-18