Toshiba MV20FL4C Service Manual page 51

A B
HIFI SCHEMATIC DIAGRAM
8
(SYSCON PCB)
7
6
5
4
3
2
1
A B
C
23
AUDIO_OUT_R
ST_SELECT
22
AUDIO_OUT_L
L5506
P.CON+9V
C5510
100uH
16V
NORMAL_A
Y/C_AUDIO
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
D E
C5521 R5518
0.22 B 3.3K
C5514
0.1 F
R5512 HIFI AUDIO/H.AMP/DEM IC
IC5501
2.7M
AN3662FBP
NC
2.2 2.1 3.9 0 2.4 1.8
48 47 46 45 44
C5506 0.1 F
DEM_BLK
PILOT
3.9
DET
C5507 0.1 F
INPUT
75uS
VCA
3.8 SL
DE-EMPH
PLL
STEREO
FILTER
LPF
5.4
L.R
C5508 0.1 F
DEMOD
SAP
DEMOD
2.9
R5526
C5516 (L.R)/SAP
R5503 10M
SWITCH
4.6
100 16V 10 KA
C5509
2.0
AMP
50V 2.2 KA
0
1.8
C5552
R5525
AMP
4.5
100 16V 10 KA
RFC
L
9.0
SAP MIX
NC
DET
47 KA
SW22 R
4.6
NC
0.2
C5512
DBX
NOISE REDUCTION
2.6
16V 10 KA
R5501 C5513
L
1.1
15K 1/4W 0.1 F
MATRIX
R
R5502
0.7
10K
C5556
0.4
0.001 B
1 2 3 4 5
2.6 0.1 2.6 0.1 2.2 2.6
NC
NC
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
C5561
100P
CH
C5560
100P
CH
NC
0.3 0 5.2 0 0 1.8 0 2.6 0.7 2.6
43 42 41 40 39 38 37 36 35 34 33
C5540 0.015 B
ZZ-PROM
LOGIC
2.6
C5541 0.22 B
MUTE VCO-F0
CTL ADJ
2.6
LOGIC
S/N
SW12
2.0
PNR RCH
SW NOISE PB REC
SW21
2.0
SW9 RCH
VCO
AUDIO 3.9 C5549 0.1 F
FROM 1PIN
MUTE LIMIT
REC LPF
R SW18
BS
PC PB LPF HPF 3.5
SW19 HIFI C5542 0.1 F
TP5502
L
R NOISE
MIX
DET 0
RCH BPF
MUTE
SW16 FM UM
LINER
L SW10
SW 5.3
MIX LCH BPF
C5543
SW17
HIFI
HOLD
L
R BS
TIMING 0 C5553
0.01 F
PC PB LPF 470PCH
FROM 3PIN
0 C5554
CURR
AUDIO
C5544
AMP 470PCH
LIMIT
-
SW14
0.7
SW4 0.01 F
-
SW NOISE +
SW2
0
PNR LCH
C5545
0.1 F
S/N
MIX DET 2.7
SW15
C5551
C5546 0.015 B
H
REC LPF
AGC
INPUT_SW(L)
2.6
0.33 B
LCH VCO SW11
L
C5547 16V 10 KA
INPUT_SW(R)
2.6
C5548 16V 10 KA C5550
VREF1
0.7
6.3V
6 7 8 9 10 11 12 13 14 15 16
2.0 0.4 0 0.1 0 2.2 2.6 0 0.1 2.6
W948
W930
C5558_1
S809X S809Y
0.0015 M
R5511_1
C5566_1
1 F 6.8K 1/4W
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
F G
H
8
FROM/TO IN/OUT
AUDIO_OUT_L
AUDIO_OUT_R
FRONT_AUDIO_IN_L
7
FRONT_AUDIO_IN_R
REAR_AUDIO_IN_L
REAR_AUDIO_IN_R
TU2_AUDIO
FROM SOUND AMP
NC
AUDIO_OUT_R
6
AUDIO_OUT_L
D5501
V.REC_ST_H
FROM CHROMA/IF
1SS133
HIFI_ENV
TU1_AUDIO
HIFI_H.SW
HIFI_H.SW
NC
FROT/TO Y/C/A/H.AMP
NORMAL_A
Y/C_AUDIO
FSC
HF1 5
HF2
HF_COM
GND
L5505
22uH
47
FROM POWER
0305
KA
P.CON+5V
4
P.CON+9V
AT+5V[UCON]
GND
FROM/TO MICON
V.REC_ST_H
HIFI_ENV
HIFI_H.SW
SCL
SDA
ST_SELECT
3
VCR_A_MUTE
2
PCB010
VMA214
1
H