Memorex MVT2135B D Series Service Manual page 110

A B
8
FROM TV POWER
7
P.CON+5V
GND
W858
NC
6
5
L4001
P.CON+5V
22uH
0305
FROM/TO MICRO MOTOR
CP4001_1
4
TOC-C04X-B1
4 SP-CH1 (R)
3 SP COM
2 SP-CH2 (L)
1 NC TU_AUDIO
R4004
P.CON+5V
15 1/4W
FRONT_AUDIO
6.3V
3
FROM/TO HEAD AUDIO CONTROL
P.CON+5V
CP4002
5.2
IMSA-9604S-06Z14 SW
0
V.REC_ST_H
Q4003
6 AUDIO_PB
KRA103SRTK
5.3
5 AUDIO_REC
CTL+
4 CTL+
CTL-
3 CTL-
R4001
2 AE HEAD(-)
560
1 AE HEAD(+)
2
0
AUDIO
R4002
0.7 5
PB SW
Q4001
10K
KTC3198
0
AUDIO
TO FULL ERASE HEAD PB SW 0
R4003
0.7
Q4002
CP4003
KTC3198
10K
TMC-T02X-E1
0
GND
2 FE HEAD(GND)
HOT
1 FE HEAD(HOT)
1
A B
G-1
C
Y/C/AUDIO/CCD/HEAD AMP SCHEMATIC DIAGRAM
0.5 2.8 0
60 59 58 57
2.2
C4016 COMP OUT
ENV AUDIO
C-ROT
KILL DET MUTE RF-SW
0.068 B DET HA SW IN
0
HA
GND
C4019 4.0
CHROMA
DET
0.047 F
C4015 1.8
ACC
DET
0.047 F
0.7
NC
P
0.7
NC R
0.7 H
P L
NC
5.0
HA VCC
R4064 1.7
R4012
6.8K
1.8
820
0
HA
PRE GND
2.0
P H
L
2.0
R
2.0
P
0
A-GND
R4052
R4007 C4020 2.2
8.2K
1
ALC
2
39K 1/4W 0.1 F
3
4.9
A-VCC
R4006 C4021 ALC
2.3
DET
NC
C4012 R4053
47K 1/4W 0.1 F
C4023
6.8K 0
22 KA
6.3V 22 KA
2.0
SP,LP
Vref
2.3V
1 2 3 4
Y/C/A/CCD/H.AMP IC
2.2 2.2 2.3 2.2
IC4001
LA71201M-N-MPB
COIL,BIAS OSC
C4025_1
T4001
BIAS CTL
1626009
Q4005
6.3V 220 KA
6 1 L4003
KTA1266
R4019
5 2
0 5.2
100uH 330K
4 3
0305
5.2
C4029
R4011
0
BIAS OSC 0.01 F
22K
Q4006
0
KTC3203_Y
0
C4010
6.3V 47 KA
W897
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
D E
(SYSCON PCB)
BUFFER
Q4012
2SC2412K
R4041 5.0
4.0
1.8K
3.4
2
C4058
6.3V 47 KA
C4059
0.1 F
R4038 C4061
680K 0.01 F
NC
0 0 4.8 4.8 4.8 5.0 1.9 2.6 4.0 3.3 3.3 2.3 5.0 5.0 0 2.2 0.8
56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
VDD 4Fsc CLOCK
ALWAYS
C-GND C-VCC
SERAIL
320FH 5V
SLD VSS
VX01 B PLL
DECODER VCO
P R
TIMMING OUT
OUT
REC PB REC
APC APC AFC DRIVER AUTO-BIAS
VSS
CCD CLAMP
BEFORE
IN
R P BGA
BGA
AFTER
CNC
BGA
R P VCA
PB VCA
P R AMP
3.58M
BPF2
CLAMP
B.D
Main B-UP
C-LPF
CONV AMP P
VCP
3.58M
ACC
AMP BPF1 1
P P R
2
+ 3
PB-C
ACC REG
4.21M
DET 4V
VIDEO
BPF
AGC
YNR/COMB
Sub
P R R
CONV
P
1/2
R BAL
DETAIL N.L.
CLAMP
ENH PB-C FBC TC1
P DEEM
Y-LPF
R
NL NL Y/C
NC1
P
EMPHA EMPHA MIX
R
R
P
AGC
FM TC2
MOD
R-EQ
NORMAL QV/QH 6DB
TEST
DOUBBLE
FM SUB
LIM DEM LPF
SYNC
SEP
R LINE
LPF REC
AMP MAIN
P FM-EQ
DE-EM V.SYNC
SEP
FM PB
VREF S-EQ
P R FM EQ P R P R
AGC 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
fo-ADJ Q-ADJ DET
FIL FIL
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
0 1.5
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 2.2
NC
3
NC
R4021
V.ENV
22K
TP4001
C4033
820P B
4
BUFFER
Q4011
2SC2412K
4.9
R4059
0.6
R4056
4.7M 10M
0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
0
BUFFER
Q4010
2SA1037AK
1.7
1.7
0
0 2.3
R4034
3.0
C4048 82K
R4035
2.8
16V 10 KA C4052 100K
3.1
C4049 50V 4.7 KA
3.1
R4062
3.3M
16V 10 KA
2.6
C4053
C4057
2.0
50V 4.7 KA TU_VIDEO
1 F
C4054
4.0
0.1 F C4047
NC FRONT_VIDEO
2.0
16V 10 KA
C4050
2.3
L4009
R4048
0.22 B
P.CON+5V
2.3
68 1/4W 100uH
R4060 1.5M
0305
1.6
C4051 1
R4032 R1025
2.9
6.3V 33 KA Y/C_VIDEO
100 1/4W 100
3.6
SD_VIDEO
0
DUMMY_V.SYNC
4.9 W888
P.CON+5V
C4046
5.0
2.8
0 BUFFER
50V 3.3 KA
Q4009
1.8
2SA1037AK
5.0
R4026 C4043
SD_SYNC
39K 0.1 F
2.8
R4029
0.7
47K 1/4W
0
SYNC IN
Q4007
2SC2412K
W873
F G
H
8
7
FROM/TO IN/OUT
FRONT_AUDIO
FRONT_VIDEO
Y/C_AUDIO
Y/C_VIDEO
FROM/TO MICON
6
Y/C_CLK
Y/C_DATA
Y/C_CS
V.REC_ST_H
VCR_A_MUTE
DUMMY_V.SYNC
CTL-
CTL+
H.AMP_SW1
ENV_DET
H.SW
SD_VIDEO
5
SD_SYNC
PLAY_LED
4
FROM/TO CHROMA/IF
TU_VIDEO
TU_AUDIO
SD_VIDEO
3
Y/C_AUDIO
VD
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
PLAYBACK VIDEO SIGNAL
AUDIO SIGNAL(REC)
2
AUDIO SIGNAL(PB)
TUNER VIDEO SIGNAL
RECORD LUMINANCE SIGNAL
RECORD COLOR SIGNAL
PCB010
VMA227
CAUTION: DIGITAL TRANSISTOR
1
H
G-2