Y/C/Audio/Head Amp Schematic Diagram - Toshiba MV19K2 Service Manual

A B
8
FROM POWER
P.CON+5V
7
GND
R4005
Y/C_AUDIO
1.5K
C4001
0.027 B
15.6KHZ TRAP
L4001
2623003
NC
6
FROM/TO CYL/MOTOR
NC
CP4001_1
TOC-C04X-B1
4 SP-CH1 (R)
W854
3 SP COM
2 SP-CH2 (L)
1
5
ENV_DET
4
5.2
V.REC_ST_H 5.1
FROM/TO A/C HEAD
21.1
3
CP4005
52045-0645
6 AUDIO PB
5 AUDIO REC
CTL+
4 CTL+
R4001
CTL-
3 CTL-
560
2 AE HEAD(-)
2.7
1 AE HEAD(+)
AUDIO
R4003
21.2
PB SW
Q4001
4.7K
2SC2274
15.1
AUDIO
15.1
PB SW
R4004
20.8
2 Q4002
2SC2274
4.7K
0
TO F/E HEAD
CP4004
TMC-T02X-E1
2 FE HEAD(GND)
1 FE HEAD(HOT)
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
NOTE: THE DC VOLTAGE AT EACH PART WAS
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
A B
C

Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM

C4097
0.1 B
C4079
0.1 B
L4006
C4078
100uH
6.3V 47 KA
W868
BUFFER
Q4004
C4002
2SC2412K
5.4
R4064
0.01 B
2.9
47K
2.3
2.5 2.5 2.5 0
80 79 78 77
0
H.A GND
4.5
Vref
0
2.3V
4.5
R4012
4.5
H.A GND
3.9K
0
H.A VCC
5.4
0
0
NC
4.0
0 COMP
C4016
REC FM
OUT
C4005 R4058 AGC2 DET
W845 50V 1 KA 1.6
R4059
ENV
0.33 B 15K
DET
2.5
1K
2.9
A.GND MUTE
0
C4012
ALC
R4008 AUTO
2.4 DET
50V 4.7 KA
10K 17 BIAS
0
C4013 REC/EE
Vref
2.5
0.1 B
PB/EE REC:
5.0 EQ EP/LP
AMP PB:EP
2.5
L4002
C4015 1 2 3 4
0 0 0 2.5
6.3V 100 KA
100uH
SW 0607 R4016
Q4003
DTA124EKA DRIVER 22K
5.3
Q4005
R4018
2SA1318
5.0
5.0 56K
R4060
6 1
47
5 2
R4023
4 3
L4003 330K
1626007 C4022
5.3
0.01 B
0.7
0
BIAS OSC
Q4006
2SC1317
CAUTION: SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
C
D E
(SYSCON PCB)
C4095
100P CH
L4014 C4082
68uH 18P CH
W813
R4067
120 1/4W
R4044
1.8K 1/4W
ENV
TP4001
NC NC
NC NC
2.5 5.0 1.9 2.0 3.4 2.6 3.0 4.2 0 2.0 3.0 4.1 3.3 3.5 3.5 3.5 5.3 3.5 5.3
76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56
A-Vcc
C-GND REC C-Vcc
APC
S-DET
OUT
VXO
SLD
R P
KIL
320FH
DET
VCO
KIL
ALC
COMB CCD
BEFORE AMP LPF
R P
PB BGA
AFTER
BEFORE
BPF1
REC PB BGA
320FH CLAMP
BGA AFTER
VCO P R P
VXO
XO Sub
PB_FM R P R Y.N.R
CONV
AGC C-LPF
REC FM BALANCER Main
Y-LPF
AGC2 CONV ACC
R P
DET P
B-UP
R P
AMP ACC
BPF2 R
REC
FM_AGC1 REC FM FM SUB
1/2
FM-AGC DEM DEM LPF
P R
R P R
LINE
P
FBC
AMP
W/D DOUBLE NL DETAIL
S-EQ CLIP LIM EMPHA ENH
S
SYNC
PB_FM
R
SEP
Vref EQ
N
PB
REC
P
/EE
AMP
SERIAL
CLAMP
DECODER
P R CLAMP INS
Y-GND
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
0 0 0 0 0 1.0 3.5 5.2 1.6 1.6 2.4 5.2 3.1 2.1 1.2 3.1 2.5 0 2.6 2.6 5.2
NC
R4043
2.7K
BUFFER
C4043 Q4009
5.2 2SC2412K
5P CH
SW
2.5
Q4013 5.2 3.0 1.9
DTC114TKA
1.9
0
AMP
1.3
1.3
Q4007
2SC2412K
ATTENTION: LES PIECES REPAREES PAR UN
ARE
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
D E
F G
C4055
6.3V 47 KA
C4056 0.1 B
5.3
BUFFER
Q4010
2.0
2SC2412K
1.2
Y/C/A/H.AMP
5.4 2.5 0 2.5 2.0
IC4001
55 54 53 52 51
LA71170M-MPB
4fsc NC
-OUT 0.1
C4059 0.01 B
CLK
1.2
-IN C4096
C COMB C4060 0.01 B
2.4 0.1 F
C4061 0.01 B
0
9.7
Y_DELAY
1.3 1.3
16
2.1
BUFFER
2.0
Q4012
NC 2SA1037AK
5.3 C4058
2.0
50V 1 KA C4062
VCA
NL DE
DET
EMP 3.0
C4063 16V 10 KA
R4056
2.7
N.C.2 ALWAY 50V KA 1 B4003
N.C.1
1K
5V
C4073
5.2 BL01RN1-A63
PIC_CTL
REG 6.3V 47 KA
ANR 15
4.0
C4069
C4074 0.01 B TU_VIDEO
Y/C
2.2 0.1 B D4004
C4064
SYNC
MIX
DET 4.9
0.01 B MTZJ5.6B C4065
FRONT_VIDEO
SYNC
R4055 C4071
DET 1.8 0.1 B
AGC
1.8K 50V KA 1
DET 3.1
TC2 C4066
H-PLL C4072 0.01 B REAR_VIDEO
TC1
1.8
AGC C4067 0.1 B
EE TEC2
1.4
AGC 16V 33 KA
CHARA 2.2
C4068
6DB
PB EQ
CTL 3.0
50V 3.3 KA
26 27 28 29 30
0 0.4 0.4 2.5 4.8
D4001
V.REC_ST_H
NC NC
1SS133
C4076
6.3V 100 KA
C4077
0.1 B
L4011
100uH
0607
BUFFER
R4061
Q4011
Y/C_VIDEO
2SA1037AK
47 1/4W
3.0
R4057
2.3
SD_VIDEO
330
0
ETANT
F G
H
8
7
FROM/TO I/O
FRONT_VIDEO
REAR_VIDEO
FRONT_AUDIO
REAR_AUDIO
Y/C_VIDEO
Y/C_AUDIO
6
FROM/TO CHROMA/IF
TU_VIDEO
TU_AUDIO
Y/C_VIDEO
Y/C_AUDIO
FROM/TO MICON
VCR_A_MUTE
COL_ROTA 5
H.SW
H.AMP_SW_1
SCL
SDA
D.V_SYNC
V.REC_ST_H
ENV_DET
CTL+
CTL-
COMP
4
SD_VIDEO
3
RECORD LUMINANCE SIGNAL
PLAYBACK LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PLAYBACK COLOR SIGNAL
TUNER VIDEO SIGNAL
AUDIO SIGNAL(REC)
AUDIO SIGNAL(PB)
2
TUNER AUDIO SIGNAL
PCB010
VM9175
1
H