Stereo/Sound - Toshiba 17HLV85 Service Manual

A B
FROM/TO POWER
8
SOUND+B
P.CON+5V
SOUND_GND
L6603
P.CON+8V
10uH 0305
GND
W877
W878
W879
W880
7
C6603
16V KANP 22
6
47
48
5
C6602
50V 10 YK
C6601
50V 10 YK
4
FROM/TO TUNER/JACK
AV_AUDIO_L
3
AV_AUDIO_R
YUV_AUDIO_L
YUV_AUDIO_R
SIF
AUDIO_MUTE
FROM/TO AV SWITCH
SCL
SDA
DVD_AUDIO_L
2
DVD_AUDIO_R
SW_AUDIO_L[PC]
SW_AUDIO_R[PC]
STEREO_RESET
HP_OUT_R
HP_OUT_L
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-5
C
STEREO/SOUND AMP SCHEMATIC DIAGRAM
L6601
10uH 0305
0 0 NC 0 NC 0 NC 0 NC 0 NC 0.2 NC 0 NC 0 NC
4.9 0 0 0 4.9 4.9 4.9
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
0
0
0.1
DACM_R
0.1
DACM_L 25 DACA_L
0 26 VREF2
NC NC
0
NC DACM_SUB
0
NC NC
0
NC NC
STEREO
0
IC6601
NC SC2_OUT_R
MSP4440G-QA-C13-100
3.8
NC SC2_OUT_L
0
VREF1
3.8
NC
SC1_OUT_R
3.8
NC SC1_OUT_L
40 CAPL_M
7.1
CAPL_A
8.0
AHVSUP
7.1
41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
0 0 3.7 0 3.8 3.8 0 3.8 3.8 0 3.8 3.8
0 NC 0 NC 0 NC 3.8 3.8
C6604
470P CH
C6607
0.0015 B
C6605
50V 10 YK
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
(AV PCB)
R6605
100
C6626
22P CH
C6627
22P CH
0 NC 0.2 NC 5.0 NC 5.0 NC 5.0 NC 0 NC
1.7 2.5
8 7 6 5 4 3 2 1
4.9
0
0
D_CTR_I/O_2 NC
0
80 STANDBYQ
D_CTR_I/O_1 NC
79 ADR_SEL
0
NC NC
0
NC NC
4.4
AUDIO_CL_OUT NC
0
100CT01803
TP NC
X6601
49
2.4
18.432MHz C6634
XTAL_OUT
8P CH
1.9
C6635
XTAL_IN
8P CH
0
TESTEN
2.6
C6633
ANA_IN2+
56P CH
1.9
C6631
ANA_IN-
65 AVSUP
56P CH
2.4
C6632
ANA_IN1+
56P CH
4.9
AVSUP
4.9
57 58 59 60 61 62 63 64
2.6 0 0
0 NC 4.8 NC 0 NC 0 NC
C6630
470P CH
C6628
0.0015 B C6629
50V 10 YK
R328
6.8K
CAUTION
:SINCE THESE PARTS MARKED BY ARE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
D E
F G
W827
B301
W5RH3.5X5X1.0
SOUND AMP
IC301 LA4901-E
0 0
PGND PGND
C313 R307
0 2.8
0.1 F 2.2 1/4W
PGND OUT+
3.4 2.8
C307 C314 R308
BEEP IN OUT-
50V 2.2 KA 0.1 F 2.2 1/4W
3.4 4.5
C308
IN
50V 0.47 KANP
0 15.0
C317
NC
NC
0 15.0
25V 1000
PRE GND VCC
0 15.0
C303 NC
NC VCC(SW)
3.0 3.8 C319
25V 10 KA
ON TIME MUTE SW OUT
2.2
0 3.4
50V
KA
NC NC SW E
15.0
0 3.4
3.4
NC NC SW B
SW DRIVE
3.2 0 Q301
C309 R305 3.4
0.0033 B
2SD1802S/T
AMP STBY SW GND
1 B 10K
C305 15.0 0
21DQ09N
DC SW GND
16V 100 KA
3.0 15.0 C315
C310 R304
HP STBY DC
C318 R309
1 B 10K 16V 47 KA
3.0 3.1
C311
C316
0.047 B
HP IN HP OUT
C304 50V 2.2 25V 220 YK
KANP
0.001 B
C348
SOUND AMP
IC302 LA4901-E
0.0022 B
0 0
W819
PGND PGND
C334 R318
0 2.8
0.1 F 2.2 1/4W
PGND OUT+
3.4 2.8
C329 C335 R319
BEEP IN OUT-
50V 2.2 KA 0.1 F 2.2 1/4W
3.4 4.5
C330
IN
50V 0.47 KANP
0 15.0
NC NC
0 15.0
PRE GND VCC
0 15.0
C327 NC NC VCC(SW)
3.0 3.8 C341
25V 10 KA
ON TIME MUTE SW OUT
15.0
2.2
0 3.4 SW DRIVE
50V
Q302
NC SW E 3.4 KA
NC
2SD1802S/T
3.4
0 3.4
NC SW B
NC
3.2 0
C331 R316
0.0033 B
AMP STBY SW GND
1 B 10K
C328 15.0 0
21DQ09N
DC SW GND
16V 100 KA
3.0 15.0 C337
C332 R315
HP STBY DC
C339
1 B 10K 16V 47 KA
3.0 3.1
C333 C338
0.047 B
HP IN HP OUT
C326
2.2
MUTE 50V KANP 25V 220 YK
Q307
0.001 B
2SC2412K 3.0
0
0
ATTENTION
:LES PIECES REPAREES PAR UN ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
F G
H
8
7
50
MHE
6
R310
2.2
1/4W
CP301
A2502WV2-4P
SP OUT L+ 4
C320
SP OUT L- 3
SP OUT R- 2
D301
SP OUT R+ 1
SPEAKER
L
5
16 OHM
4
10
3
SP301_1
SPEAKER
2 S0407N04-B
1 R
16 OHM
51
4
R321
2.2
1/4W
3
C342
D302
R320
10
2
1
PCBD20
CME030
H
H-6