Y/C/Audio/Head Amp Schematic Diagram - Toshiba MV9KD1 Service Manual

A B
8
FROM/TO POWER
P.CON+5V
7
GND
6
5
L4001
P.CON+5V
100uH 0305
C4076
FROM/TO CYL/MOTOR
6.3V 100 KA
CP4001_1 TOC-C04X-B1
4 SP-CH1 (R)
3 SP COM
2 SP-CH2 (L)
ENV_DET
1
4
R4004
COMP
15.6KHZ TRAP
2.7K
L4004 2623003
Y/C_AUDIO
NC
P.CON+5V
CTL+
C4078
CTL-
5.2 0.1 B
FROM/TO A/C HEAD
SW
V.REC_ST_H
Q4003
3 CP4002 (CD4001)
0
DTA124ES
IMSA-9604S-06Z14
5.3
6 AUDIO PB
R4001
5 AUDIO REC
560
4 CTL+
3 CTL- 6
2 AE HEAD(-) 5
1 AE HEAD(+) 4
T4001
1626007
0
R4002
0.7
AUDIO
10K
PB SW
0
Q4001
2
13
2SC3331
0
R4003
0.7
AUDIO
10K
PB SW
0
Q4002
2SC3331
FROM/TO F/E HEAD
CP4003 TMC-T02X-E1
2 FE HEAD(GND)
1 FE HEAD(HOT)
1
NOTE: THE DC VOLTAGE AT EACH PART WAS NOTE:
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
A B
C

Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM

TP4001
11
Y/C/A/CCD/H.AMP NC NC NC
2.4 2.4 2.4 0 2.4 5.0 2.3 2.3 2.8 2.3 1.5 2.0
IC4001
80 79 78 77 76 75 74 73 72 71
LA71067M-MPB
0 A-Vcc
H.A GND
1.8 CH4
C4051
1.8
Vref
0.01 B REC EP
2.3V
1.8 H
OUT
C4046 L
1.8 ALC
CH3
0.01 B H.AMP
0
SW
H.A GND H
5.1
L
H.A VCC
1.8 CH2
P R
1.8
AGC
+
REC SP AMP
1.8
OUT
H
1.8
H.AMP
L
CH1
SW
C4011
0
REC AGC
FILT
50V KA 1 FM
1.0
AGC
ENV DET
C4009 0.1 F
4.6
COMP OUT
R P
R4009 3.3K DELAY
0
A.GND MUTE LINE
C4016 ALC-LEVEL AMP PB
2.8
C4002
FM-EQ
AUTO
R4007 R4012 25V 4.7 KA
0.3
0.01 B BIAS
PB
560 18K PHASE-EQ
0 Vref
R4008
PB
REC
5.1 /EE
AMP
PB/EE REC:
8.2K
R4013 CTL
EQ EP/LP
2.4
AMP
AMP PB:EP
12K
C4010
1 2 3 4 5 6 7 8 9 10
6.3V 47 KA
2.4 2.4 2.4 2.4 0 2.4 2.4 5.0 5.0
R4011 NC
R4020
22K
BIAS CTL 5.2
10K
Q4005
2SA1318
5.2
0
R4025
1 330K
C4020
2
3 0.01 B
0
0
0
BIAS OSC
Q4006
2SD734
R4075
0
330K 1/4W
4.6
0
SLP S/N UP
Q4012
2SC2412K
THE RESISTOR MARKED F IS FUSE RESISTOR. NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
THE ALUMI ELECTROLYTIC CAPACITOR MARKED NP
IS NON POLAR ONE.
C
D E
L4002
100uH 0305
L4008
100uH 0305
W836
W822
12
NC
NC
0 0 1.4 4.0 2.3 2.2 3.0 4.1 3.4 4.9 3.4 5.0 5.0 2.5 5.0 4.2 2.3 0.1
70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
ALWAYS C-VCC VDD 4Fsc CLOCK 0
C-GND
KIL REG
5V PULL
VX01 320FH SLD
DET
2.2
VCO TIMMING
OUT
OUT
0
DRIVER AUTO-BIAS
KIL
REC P R
BEFORE
2.7
BGA
APC CCD CLAMP
KIL
P IN
PB REC
AFTER 2.5
BGA APC AFC
PB KIL
R
3.0
AMP B.D. P
R C.SYNC VCA
P
3.2
C-LPF
3.58M CLAMP
R ACC
BPF1
BGA DET 2.8
GCA
VCP
N.L.
2.8
YNR/COMB
DEEN
4.21M Main B-UP P
ACC
BPF CONV AMP 4.9
AMP SYNC
Y-LPF
R
NC1
DET
BALANCER 2.8
PB-Y
P R
Sub 3.58M Y/C
CONV BPF2 MIX 3.5
SUB V/I
PB-C
AFC
P R
CONV
LPF
2.5
1 2 3
NOMAL R P
FM
REC DETAIL
FM
MOD
1.5
AGC
FM-EQ DEM ENH R
1/2
P TC2
SYNC
S-EQ
1.0
R-EQ WC SEP V-AGC
FM-EQ NL
DOUBLE
R
TEST DC FBC
EMPHA
LIM
VIDEO OUT 3.0
6DB
CLAMP
Chara
INS.
SQPB R
P TEST
VHS
4.6
Y-Vcc Y-GND
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
0 0 0.8 0.8 0.8 0 0 4.9 0 1.6 5.0 1.0 0.2 2.0 3.4 2.8 0 2.1 1.0 4.8
R4036
47K
L4007 C4047
100uH
22P CH
R4049
1.5K
W834
D E
F G
(SYSCON PCB)
FROM/TO I/O
Y/C_AUDIO
CHROMA_VIDEO
FRONT_AUDIO
FRONT_VIDEO
REAR_AUDIO
REAR_VIDEO
2.6
BUFFER
Q4009
2.2
2SA1037K
0
R4060
C4058 220K R4062
FROM/TO MICON
6.3V 22 KANP C4059 220K 1/4W
SP/LP/EP-H
C4060 50V 4.7 KA TRICK_PB-H/EE-H
C4061
V.REC_ST_H
50V KA 1 R4076 1M
50V KA 1
C_ROTARY
C4007 50V KA 1
R4063 3.3M TU_VIDEO VCR_A_MUTE
REC/EE/PB
C4052 0.01 F R4005 1M
DUMMY_V.SYNC
C4075
FRONT_VIDEO CTL-
16V 10 KA C4062 50V KA 1
CTL+
R4057 2.2K
DOC_XO_CTL
C4071
C4053 0.01 B
REAR_VIDEO
INPUT_SEL
C4057 50V KA 1
SYNC
16V 33 KA R4055
W814 COMP
CHROMA_VIDEO
ENV_DET
R4078 100 10K
H.SW
L4009
C4054 R4052 100uH SD_VIDEO
P.CON+5V
0.01 B 56 1/4W
NC
C4069
0.01 B
DUMMY_V.SYNC
SD_VIDEO
2.8
14
BUFFER
2.2 Q4007
FROM/TO CHROMA
2SA1037AK
0
Y/C_AUDIO
TU_AUDIO
TU_VIDEO
CHROMA_VIDEO
0 5.1
AGC SW
Q4008
0
2SC2412K
R4024
10K
R4054 C4077
SYNC
4.6
15K 1/4W 0.1 B
R4045
0
1.5K 1/4W
0
SYNC PLUS SW
Q4010
2SC2412K
CAUTION: DIGITAL TRANSISTOR
F G
H
8
7
6
5
4
3
2
1
PCB010
VMX195
H