Micon - Toshiba MV20FM3 Service Manual

A B
FROM/TO POWER
8
AT+5V[BACKUP]
AT+5V[UCON]
GND
P.CON+5V
W823
AT+12V
W860
MOTOR_GND
STANDBY-H
7
FROM/TO DECK
C1002
CP1001
TMC-J12P-B2
35V 330 YK
CAP_FG
1 CAP_FG
2 CAP_VCO
3 VCC
R1016
CAP_F/R
4 CAP/M/F/R
3.3K 1/4W CAP_LIMIT
5 I_LIMIT
6 GND[M]
7 GND
8
LD/CY_VCO
6
CAP_CTL
9 CAP_CTL
LDM_CTL
10 LDM_CTL
CYL_FG/PG
11 CYL_FG/PG
CYL_CTL
12 CYL_CTL
5.2 5.2
0 0
BOT
5
EOT
TAB_SW
2.8
CENTER_LED
CENT SW
4.8
Q1006
3.7
KRC103SRTK
4
3
2
2.5 2.6 0 5.2
5 6 7 8
4 3 2 1
1
0 0 0 0
A B
G-3
C
MICON SCHEMATIC DIAGRAM
C1065
0.1 B
4.9
D1001 BUFFER
POWER_FAIL Q1008
2SA1037AK
4.1
MTZJ11B
4.9
C1028
0.1 B
W869 NC
S807Y
0.9 0.9
80 79
VCR_A_MUTE
0
R1077
TV_A_MUTE
5.1
1K
EXT_A_MUTE
0
NC
5.1
R1001
POWER_FAIL_L
5.9
3.3K
W866
IIC_OFF
IIC OFF
5.2
R1008 11
CAP_FG
CAP-FG
2.5
1K
AMP-VSS
0
NC
2.0
R1006
CYL_FG/PG
DRUM-FG/PG
C1015 0.6
1K 1/4W
AMP-VREFOUT
C1016 2.5
10V 47 KA
AMP-VREFIN
R1012 C1018 2.5
C1019
16V 22 KA
C
0.2
10K 0.001 B R1009
50V 4.7 KA
CTL-
CTL-
0
R1013 560 1/4W
CTL+
CTL+
C1020 2.5
560 1/4W
AMP C
0 2.6
C1027
FF/REW_SW 16V 10 KA
CTL AMP-OUT
Q1004
2.5
4.8 C1022 0.0039 B
KRC103SRTK
7
0
5.2
0.1 B
5.2
ST_SELECT
0
1 2
4.9 1.4
W868
S802X
MS_SEN B MS_SEN A
Q1009
Q1003
RPI-352C40N
RPI-352C40N
3.9 5.1
5.1 5.1
2 3 2 3
1 4 1 4
3.9 1.4 2.7 4.9
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D E
(SYSCON PCB)
C1009
220P CH
C1067
100P CH
C1023
220P CH
C1010
220P CH
C1037
390P CH
NC
NC
0 1.8 2.5 0 0 4.9 2.5 2.6 0 0.1 4.8 0 0 4.8 0 0 0 4.8 0 4.9 4.2
78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58
81 VCR_A_MUTE
50 TAB SW
82 TV_A_MUTE
49 OSD-VSS
83 EXT_A_MUTE
48 AV2
84 NC(TUNER_CTL)
TIMER SYSCON MICON IC
IC1001
OEC7071A
98 AMP-VCC
99 ANALOG VCC
33 PLAY LED
100 DEW/ST_SELECT
32 RENT_H / OTPB_LED
31 ON-TIMER LED
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
0 0 0 2.4 2.2 0 5.2 5.2 0 2.2 0 0 0 5.2 2.3 2.6 2.6 0 4.9 0 0
NC
SYSTEM RESET IC
IC1002_1
R3111N311A/C
NC NC R1049
0.2 0.3
5 4
4.7K
NC NC
OUT IN GND
0 1.2
1 2 3
2
1
5.2 5.2
0
D1002
1SS133
4 3
0 0.1
REEL SENS
Q1005
RPI-303
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
D E
F G
W874
R1004
1K
C1056
0.1 B
W871
C1034
SERVICE
TP1001
0.1 B NC
C1035
220P CH
9
C1031
0.001 B R1033 C1062
1K 1 B
HD
VD
8
0 2.3 1.6 2.1 5.2 0 5.2
57 56 55 54 53 52 51
TAB_SW
5.2
0
NC
4.8
AV1 NC
4.8 C1046
NUB
0
20P CH
OSC-OUT2
2.6
C1047
OSC-IN2
2.5
R1040 C1014 18P CH
CLKSEL
5.2
33K 1/4W 0.1 B
NC
NC(CS_REC_LED)
0
X_RAY_TEST
X-RAY_TEST
0
C1040
VSS
0
18P CH
12
X1001
X-OUT(12MHz)
2.6
100CT01207 C1048
X-IN(12MHz)
2.1
18P CH
VCC
5.2
C1049
XC_OUT(32KHz)
X1002
1.3
C1050 22P CH
100DA32R01
XC_IN(32KHz)
1.5
20P CH
RESET
RESET-L
5.2
NC
4.9
NC
0
NC
0
24 25 26 27 28 29 30
4.9 0 0 5.2 5.2 0 0 10
TV_POWER_H
VCR_POWER_H
H.SW
COMP
PROTECT SW TP1002
Q1014 NC
KRC103SRTK H.SW
STANDBY-H
0
4.8
4.9
PROTECT_A
0 0
PROTECT SW
0
Q1007
KRC103SRTK
AUDIO SIGNAL(REC)
CAPSTAN AFC SIGNAL
TUNER VIDEO SIGNAL
DEFLECTION SIGNAL
CYLINDER APC SIGNAL
B.SIGNAL
CAUTION: DIGITAL TRANSISTOR
G.SIGNAL
R.SIGNAL
F G
H
FROM/TO HI-FI
V.REC_ST_H
8
HIFI_ENV
HIFI_H.SW
SCL
SDA
ST_SELECT
VCR_A_MUTE
FROM/TO Y/C/AUDIO/HEAD AMP
7
Y/C_CLK
Y/C_DATA
Y/C_CS
H.SW
SD_VIDEO
ENV_DET
VCR_A_MUTE
CTL+
CTL-
C_ROTARY
DUMMY_V.SYNC
V.REC_ST_H
6
H.AMP_SW1
COMP
SD_SYNC
FROM/TO CHROMA/IF
HD
VD
DEGAUSS_H
POWER_FAIL
OSD_R
OSD_G
OSD_B
5
OSD_BLK
SDA
SCL
AFT_M
VCR_POWER_H
X_RAY_TEST
PROTECT
IIC_OFF
PROTECT_A
H_CONTROL
4
FROM/TO IN/OUT
VCR_A_MUTE
REC_LED
T-REC_LED
KEY_A
KEY_B
REMOCON_IN
EXT_MUTE
EXT_A_MUTE
3
FROM/TO SOUND AMP
TV_POWER_H
TV_A_MUTE
SCL
SDA
2
PCB010
VMA245
1
H
G-4