Sansui HDLCD3200C Service Manual page 46

A I B I C I
D
I E I F I G I H
SOUND SCHEMATIC DIAGRAM
(DIGITAL PCB)
DB.OV
SOUND_B >
R303
3.3K
SOUND GND
AT+SV
A MUTE
AUDIO MUTE >
P CON+9V >
W893
o! €<-;
R3414
'V'A,
1OK _
_I _ ° ,g
L3401
330uHNLCV32T
D3402 R3401
> [LL'_z I _'/'7', ,
ROUT FI
10 C 100
IOV(2125)
LOUT FI > _
C3401
100
R3415
5.0
0 -- MUTE SW
RTK
MUTE SW
Q3409
KRA101SRTK
5.0
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICF_ WITH THE DIGITAL TESTERWHEN THE COLOR BROADCAST
WAS RECEIVEDIN GOOD CONDITION AND PICTURE IS NORMAL.
IB
10V(1608)
0.2
R3428 O A:
1K \_/ MUTE SW
0
Q3411
KTC3875S Y RTt_
SOUND AMP IC
IC302 AN17808B
o 0 / L
D349
25V1000 MHE
C350 1
:N
25V 1000 MHE
HS92
HS302
763WAA0368
BUFFERQ3401
KTD3875S Y RTK 9.0
44 -
d
8) 1.8
1 ,
C3415 R3425
I _-'W'_
I B IK
IOV(1608)
I B ,,_:
lOV(16o8) _.
i_ _UFFER
Q3412 gO
KTC3875S Y RTK
45 _L D3416 R3426
1._ _'V¢,_
2 _,1 B 1K
_ _ 10v(1608)
CAUTIONsmcE
THESE PARTS MARKED BY _ ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED INPARTS LISTONLY
ATTENTI
ON LES
P,ECES REPAREES PAR UN /"_ ETANT
DANDEREUSES AN POINT DE VUE SECURITE
N'UTILISERQUE CELLS DECRITES
DANS EA NOMENCEATURE DES PIECES
W865
W887
W888
CAUTION: DIGITAL TRANSISTOR CAUTION: DIGITAL TRANSISTOR
? t
I S
A2502WV2 4P
SP OUT L
GND
SP OUT R
DD302
E8147502
SPEAKER
2 _
3 :: 3 _, _ SPEAKER
A
_,::: AUDIO SIGNAL
AUDIO SlGNAL(REC)
SP304
FB136N4 B2
SP303
FB136N4 B2
A I B I C I D I E I r I H
J-17 J-18