Toshiba 42WP66R Service Manual page 16

A B
8
7
FROM STEREO
6
SP_AUDIO_OUT_R
SP_AUDIO_OUT_L
FROM POWER
5
GND
SOUND_GND
SOUND+B
P.CON+12V
P.CON+5V
AT+5V
P.CON+9V
W884
4
FROM/TO AV JACK
POWER_ON-H
HP_IN
HP_MUTE
AUDIO_MUTE
SW
Q302
KTC3875S_Y_RTK
3
0
4.8
4.8
R325 0
0
1K
0
SW
Q301
KTC3875S_Y_RTK
2
W910 W911 W912
1
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
A B
H-9
C
SOUND AMP/HEADPHONE AMP SCHEMATIC DIAGRAM
3
C320
R304 R314
1K 50V 0.22 KANP 22K
W886
2
C319
R302 R315
1K 50V 0.22 KANP 22K
SW
Q300
KTC3875S_Y_RTK
0
R311 C323
3.0
10K 0.1 B
0
R312
C305
1M
0.1 B
HS300
763WAAA066
D300
EC11FS2-TE12L
NC
C304
0.1 B
HEADPHON AMP IC
IC300
NJM2151AV
R308
HP.V+
1K
C307
C309
VR
16V 22 KA 470P
R300 CH
C361
560
C311
25V 10 KA
VR
470P
C318
CH
SP.V
16V 22 KA
C315
0.1 F
C316
0.1 F
C317
0.1 F
R301
HP.SUSPEND
39K
R303
SP.SUSPEND
39K
W913 W914 W915
ATTENTION
ARE :LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D E
(AV PCB)
SOUND AMP
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 L300
REF OUTP1
8.2K 10uH7313N
11.0
+-1% 0 C339
NC OVERLOADB VDD1
0.1 B
110
C340
0
AGND2
VDD1
16V 1000 YK
6.0
5.5 L301
V5A OUTM1
10uH7313N
6.0
R318 2.5 L302
OAOUT1
OUTM2
10uH7313N
22K
11.0
2.5 C341
INV1 VDD2
0.1 B
11.0
C342
0
MUTE VDD2
16V 1000 YK
6.0
0 L303
NC OUTP2
NC
10uH7313N
2.5 0
R319
OAOUT2 NC
NC
22K
2.5 0
INV2
DGND
2.5 0
C332
BIASCAP NC NC
0.1 B
0 0
AGND3 PGND2
0 0
SLEEP FAULT NC
FROM/TO OPERATION/
C333 SIDE JACK/POWER SWITCH
CP300 (CP4205)
10V 220 YK
C334 A2001WV2-5P-BLK
P.CON+5V 1
10V 220 YK
HP_SW 2
HP_L 3
HP_R 4
GND 5
TR303
ZCAT2436-1330A
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
4
5
6 CP301
A2502WV2-3P
NC
7
CP303
A2502WV2-2P
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
SPEAKER
7
SP303
EAS5PH134C
4 OHM 12W
SPEAKER
(R)
TR301
W5T29X7.5X19
SP302
EAS12D175B
6
CD301
CU13A301
SP OUT R+ 1 1
NC 2 2
3 3
SP OUT R-
CD303
CU12A501
SP304
SP OUT L- 1 1
EAS5PH134C
SP OUT L+ 2 2
SPEAKER
5
TR302
W5T29X7.5X19
SP301
EAS12D175B
(L)
SPEAKER
4 OHM 12W
4
3
2
PCBD20
CME071
1
H
H-10