Y/C/Audio/Head Amp Schematic Diagram - Toshiba MW20H63 Circuit Diagrams

A B
8
FROM REGULATOR
P.CON+9V
7
P.CON+5V
FROM/TO Hi-Fi
NORMAL_A
Y/C_AUDIO
FSC
HF2
HF_COM
HF1
6
FROM/TO CYL
CP4501
TOC-C09X-A1
9 HF1 (R)
8 HF COM
7 HF2 (L)
6 SP-CH1 (R)
5 SP COM
4 SP-CH2 (L)
3 EP/LP-CH1 (R)
2 EP/LP COM
1 EP/LP-CH2 (L)
5
L4501
P.CON+5V
100uH 0607
4
CD4501
2F061502
R4504
3
NORMAL_A
12K
SW
Q4503
KRA103SRTK
FROM/TO HEAD AUDIO CONTROL P.CON+5V
CP4502 5.2
IMSA-9604S-06C
V.REC_ST_H 0 COIL,BIAS OSC
L4502
6 AUDIO REC
5.3
1626010
5 AUDIO PB
CTL+
4 CTL+
CTL- 6
3 CTL- R4501
15 5
2 AE HEAD(+)
560
4
1
AE HEAD(-)
0
R4502
0.7
2
AUDIO PB SW
Q4501
10K
KTC3875S_Y_RTK
0
TO FULL ERASE HEAD 0
R4503
0.7
AUDIO PB SW
CP4503
Q4502
10K
B2013H02-2P
KTC3875S_Y_RTK 0
GND
2 FE HEAD(GND)
HOT
1 FE HEAD(HOT)
1
A B
H-9
All manuals and user guides at all-guides.com
C

Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM

W864
Y/C/AUDIO/HEAD AMP IC
IC4501
LA71206M-MPB-E
0.5 2.8 0
60 59 58
2.2 COMP OUT
C4521
ENV AUDIO
KILL DET MUTE
0.068 B DET HA SW
0
HA
GND
4.0
C4522
CHROMA
DET
0.047 B
1.8
C4514
ACC
DET
0.047 B
0.7
P
0.7
R
0.7 H
P
L
5.0
HA VCC
1.7
1.8
0
HA
PRE GND
2.0
H
P
2.0
L
R
2.0
P
0
A-GND
2.2
1
2
4.9 3
A-VCC
2.3
0
C4523_1
16V 22 KA_P 2.0
C4517
SP,LP
Vref
0.1 B C4524
2.3V
1 2 3
R4505 C4518_1 0.1 B
2.2 2.2 2.3 2.2
R4512
8.2K
6.3V 220 KA_P
R4526
10 1/4W
L4503 C4529_1
C4532_1 8.2K
100uH 0607 6.3V 470 YK_P
10V 33 KA_P
C4533
R4509 0.01 B
R4527
BIAS CTL 4.8
680
0
Q4505
1
L4504_1 KTA1266
0
C4537
2
4.9
0
100uH 0405
3 0.01 B
4.9
R4511
22K
0 BIAS OSC
Q4504 R4519
C4527_1
KTC3203_Y
0
1.5K
0
6.3V 47 KA_P
W856
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(VCR MT PCB)
BUFFER
Q4507
12
KTC3875S_Y_RTK
5.0
R4537
4.0
1.8K
3.4
1/4W
C4558_1
6.3V 47 KA_P
R4544
680K
NC
0 0 4.8 4.8 4.8 5.0 1.9 2.6 4.0 3.3 3.3 5.0 5.0 0 2.2 0.8
2.3
57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
ALWAYS VDD 4Fsc
C-ROT C-GND C-VCC
SERAIL 5V
RF-SW 320FH
SLD
VX01 B PLL
IN DECODER VCO
P R
TIMMING OUT
REC PB REC
APC APC AFC DRIVER AUTO-BIAS
CCD CLAMP
BEFORE
R P BGA
BGA
AFTER
CNC
BGA
R P
PB VCA
P R AMP
3.58M
BPF2
CLAMP
B.D
Main B-UP
C-LPF
CONV P
AMP
ACC 3.58M
AMP BPF1 1
P P R
2
+
3
PB-C
ACC
4.21M
DET
VIDEO
BPF
AGC
YNR/COMB
Sub
P R R
CONV
P
1/2
R
DETAIL
CLAMP N.L.
PB-C FBC
ENH DEEM
P
Y-LPF
R
NL NL Y/C
NC1 P
EMPHA
EMPHA R MIX
R
P
FM
MOD
R-EQ
NORMAL QV/QH 6DB
TEST
DOUBBLE FM SUB
LIM DEM
LPF
SYNC
SEP
ALC R
LINE
LPF REC
AMP MAIN
P
FM-EQ
DE-EM V.SYNC
SEP
ALC
FM PB
S-EQ
DET VREF P R
P R AGC FM EQ P R Y-VCC
VHS SOPB
REC
MUTE
PB,EE AMP
PB,EE
EQ
REC:LP<EP
AMP
PHASE PHASE MAIN
PB:EP AUTO FM
B
BIAS EQ EQ EMPHA S
AGC
Y-GND
Q-ADJ DET
fo-ADJ FIL FIL
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
2.2 2.5 2.3 2.2 2.3 2.4 5.0 1.0 1.0 1.7 1.4 0 0 1.5 0.1 2.2
NC
C4551
390P CH
R4532
C4552
22K
0.1 B
C4542
NC
820P CH
330K
14
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D E
F
W880
NC
C4555
0.1 B
C4561
0.01 B
C4559
0.1 B
0 BUFFER
CLOCK
Q4509
VSS
KTA1504S_Y_RTK
1.7
1.7
OUT
0
2.3
0
VSS 3.0
R4557
IN
82K 1/4W
C4565_1
2.8
R4560
25V 10 KA_P 100K
3.1 C4574_1
VCA
50V 1 KA_P
C4570_1
3.1
50V
1 KA_P
2.6 C4566_1
VCP
50V 1 KA_P
C4572_1
2.0
25V 10 KA_P
4.0
C4569
REG
4V
0.1 B
C4575_1
2.0
C4567_1
2.3 25V 10 KA_P
BAL
TC1
50V 0.22 KA_P
2.3 C4576_1
C4564_1 25V 10 KA_P
1.6
AGC
TC2
10V 33 KA_P
2.9
C4579
3.6
0.1 B
NC
0
DUMMY_V.SYNC
L4509
4.9
P.CON+5V
11 100uH 0607
2.8
Y/C_VIDEO
1.8 C4568_1
50V 0.33 KA_P
VIDEO_OUT
5.0
0
L4510
5.0 P.CON+9V
BUFFER
10uH
Q4511
KTA1504S_Y_RTK
C4580
0.1 B
C4581_1
16V 100 KA_P
Y/C_AUDIO
CAUTION: DIGITAL TRANSISTOR
F
G H
8
7
FROM/TO MICON
Y/C_CLK
Y/C_DATA
Y/C_CS
H.SW
6
ENV_DET
VCR_A_MUTE
CTL+
CTL-
C_ROTARY
DUMMY_V.SYNC
V.REC_ST_H
H.AMP_SW1
COMP
Y/C_VIDEO
5
FROM/TO IN/OUT
VIDEO_OUT
MONI_CVBS
FROM TUNER/DVD IN/OUT
DVD_VIDEO
DTV_CVBS
4
FROM/TO CHROMA/IF
V.SYNC
FROM/TO TV POWER
GND
3
2
PCB010
DMF086
1
G H
H-10