Micon - Toshiba MV20FL4C Service Manual

A B
FROM POWER
AT+5V[BACKUP]
8
AT+5V[UCON]
P.CON+5V
GND
W885
AT+12V
MOTOR_GND
CYL/LOADING MOTOR DRIVER
IC1004 LB11880
0 1.1
C1078
GND FC
0.1 F
7
3.8 2.7
CYL_DRIVE
PC OUT VC
3.8 5.2
C1080
P.CON+5V
VCO IN VREG
0.1 B
1.0 2.7
C1069
PGIN+
CX PG IN(+)
0.022 B
0.6 2.7
C1070
PGIN-
C2 PG IN(-)
0.0056 B
0.7 2.7
C1073
C1 PG OUT1
0.0056 B
4.1 0.1
CYL_PG
NC W IN PG OUT2
4.1 2.3
6
CYL_FG W893
NC V IN BFGO
W825
4.1 12.0
NC U IN LVCC
12.0 12.0
R1073
VCC VREF
0 0
1 1/4W
LDM_R
RF X IN
R1080 1 1/4W
3.2 0
LDM_F
M COM Y IN
3.2 0.5
W OUT X OUT
3.2 0
5
V OUT LGND
3.2 0.5
U OUT Y OUT
C1002
0.001 B
EOT SENSOR
Q1013
FROM/TO DECK
C1005
PNA2604M010R
CP1006 (CP101)
0.001 Y
IMSA-9604S-04Z14
0.1
1 VCC
4
5.0
2 BOT
LDM-
3
4 LDM+
TAB_SW
TAB SW
SW1001
SPVF130100
3
FROM/TO MICRO MOTOR
CP1005 (CD1002)
IMSA-9604S-07Z14
U-OUT
1 U-OUT
V-OUT
2 V-OUT
W-OUT
3 W-OUT
M-COM
4 M-COM
5 GND
C1064 R1082
PGIN-
6 PG OUT
1 F 1.5K PGIN+
7 PG GND
2
C1039
0.0033 B
FROM/TO CAPSTAN DD UNIT
CP1004 TMC-J08P-B1
1 GND
2 MOTOR GND
3 I LIMIT
CAP_CTL
4 CTL
5 VCO
CAP_FG
6 FG
R1010
1 CAP_F/R
7 CAP/M/F/R
3.3K 1/4W
8 VCC(5V)
A B
C D
MICON SCHEMATIC DIAGRAM
R1029
4.7K
R1064
POWER_FAIL[DC]
1K 1/4W
5.9
X_RAY_TEST
X_RAY_SW
R1045
0.2 Q1023
0 2SC2412K
W881
NC NC
0.9 0.9 0 1.8 2.5 0
80 79 78 77 76 75 74
VCR_A_MUTE
0
R1077
TV_A_MUTE
5.1
1K
EXT_A_MUTE
NC
R1001 5.1
POWER_FAIL_L
5.9
3.3K
W851
IIC_OFF
81 VCR_A_MUTE
IIC OFF
5.2
R1008 11
W859
CAP_FG
82 TV_A_MUTE
CAP-FG
2.5
1K C1013 0.0039 B
83 EXT_A_MUTE
R1043 1K 1/4W AMP-VSS
CYL_FG 0
84 CA/MA_SEL/TUNER_CTL
DRUM-FG
R1006 6 2.0
CYL_PG
DRUM-PG
0.6
1K
C1015 10V 47 KA
AMP-VREFOUT
2.5
C1016 16V 22 KA
AMP-VREFIN
2.5
C1018 50V 4.7 KA
98 AMP-VCC
C
0.2
R1009 560 1/4W
CTL-
99 ANALOG VCC
CTL-
R1012 C1019
0
R1013 560 1/4W
CTL+ 10K 0.001 CH
100 DEW/ST_SELECT
CTL+
2.5
C1020
AMP C
C1027
2.6
C1022
16V 10 KA
0.0039 B
CTL AMP-OUT
0
2.5
FF/REW_SW 0.1 B
7
Q1004_1
5.1 5.2
KRC103RTK
0 5.2
0
ST_SELECT 1 2 3 4 5 6
TIMER SYSCON MICON IC
IC1001
1.4 1.4 0 0 0 2.4
OEC7059A
C_ROTARY
R1024
1K 1/4W
MS_SEN A
5.1
1.3 Q1009
RPI-352Q01R 1.1
SENSOR SW 0
2
Q1002 1.2 5.2 1
0.8 5.2
2SC2412K
2 3 2 3
1 4 1 4
4 3
0.8 1.4 0.5 1.4
0 0.1
REEL SENS
MS_SEN B
Q1005
Q1003
RPI-301
RPI-352Q01R
C D
E
(SYSCON PCB)
C1056
0.1 B
C1044
C1034
220P CH
0.1 F
C1045
C1035
220P CH
220P CH
W831
R1044 C1031
3.3K 0.001 B
3.3K
NC NC
NC
0 4.9 2.5 2.6 0 0.1 4.8 0 0 0 0 0 0 4.8 0 4.9 4.2 0 2.3 1.6 2.1 5.2
73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53
CM_ADV_VIDEO/AV1
50 TAB SW
49 OSD-VSS
48 CM_ADV_AUDIO/AV2
X-OUT(12MHz)
33 E/V_MASK/PLAY LED
32 RENT_H / OTPB_LED
XC_OUT(32KHz)
31 ON-TIMER LED
XC_IN(32KHz)
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
2.2 0 5.2 5.2 0 2.2 0 0 0 5.2 2.3 2.6 2.6 0 0 0 0 4.9 0 0 5.2
NC NC
10
NC NC R1049
0.2 0.3
5 4
4.7K
NC NC
OUT IN GND
1 2 3
5.2 0
5.1
E
F G
SERVICE
R103210K
TP1001
NC
W927
9
8
R1033 C1062
1 B
1K
0 5.2
52 51
TAB_SW
5.2
0 C1057
0.001 CH
0
C1059
0
0.001 CH
NUB
0
C1046 20P CH
OSC-OUT2
L1001
2.6
C1047 18P CH
2.2uH
OSC-IN2
2.5
R1040
CLKSEL
5.2
33K 1/4W
NC
CS_REC_LED
0
X_RAY_TEST
X-RAY_TEST
0
VSS
0
12 C1040
X1001
2.6
C1048 18P CH
12MHz
X-IN(12MHz)
2.1
18P CH
VCC
5.2
C1049
X1002
1.3
C1050 22P CH
32.768KHz
1.5
20P CH R1004
RESET
RESET-L
5.2
1K
NC
4.9
NC
0
NC
0
29 30
5.2 0 0
TV_POWER_H
VCR_POWER_H
2.5 2.6 0 5.2
5 6 7 8
4 3 2 1
0 0 0 0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
B.SIGNAL
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER G.SIGNAL
DURING PLAYBACK
R.SIGNAL
TUNER VIDEO SIGNAL
DEFLECTION SIGNAL
CAUTION: DIGITAL TRANSISTOR
CAPSTAN AFC SIGNAL
CYLINDER AFC SIGNAL
CYLINDER APC SIGNAL
F G
H
FROM/TO HIFI
V.REC_ST_H
8
HIFI_ENV
HIFI_H.SW
SCL
SDA
ST_SELECT
VCR_A_MUTE
FROM/TO Y/C/A/H.AMP
Y/C_CLK
7
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
(S805)
GND
FROM/TO CHROMA/IF
HD
VD
DEGAUSS_H
POWER_FAIL[DC]
OSD_R
OSD_G
OSD_B
5
OSD_BLK
SDA
SCL
AFT_M
VCR_POWER_H
TV_POWER_H
X_RAY_TEST
IIC_OFF
4
FROM/TO IN/OUT
VCR_A_MUTE
REC_LED
T-REC_LED
KEY_A
KEY_B
REMOCON_IN
TV_POWER_H
EXT_MUTE
EXT_A_MUTE
3
FROM/TO SOUND AMP
TV_POWER_H
TV_A_MUTE
SCL
2
SDA
PCB010
VMA214
1
H