Toshiba VTV1555 Service Manual page 49

A B
D1006
D1010
SB140-EIC
SB140-EIC
8
FROM/TO REGULATOR
AT+5.6V
VCR_POWER_H
AT+12V
CAP_VCO
P.CON+5V_C
MOTOR_GND
GND
FROM/TO POWER
7
SCL
SDA
MO_SYNC
REC_SVL-H
REC_AFT
REC_AGC_CTL
IF_MOD
6
FROM/TO Y/C/AUDIO/HEAD AMP
CSYNC_A
D_V_SYNC
V.REC_ST_H
VV_H
2FSC_A
SCL
SDA
H.SW
5
ENV_DET
VCR_A_MUTE
CTL+
CTL-
AT+5.6V_A
EOT
Q1017
5.1
5.1
ST-304L
BOT
Q1006
0
BOT
ST-304L
0 EOT
4
R1016
270 1/4W
0.2
5.2
LED SW.
Q1002
KRC103SRTK
0
TAB SW
SW1001
C1032
MXS01380MPP0
1 F
C1031
FROM/TO CYL CAPSTAN MOTOR
3
25V 220 YK
CP1001
W851
TMC-J12P-B2
1 CAP_FG
CAP_VCO
2 CAP_VCO
C1036_1
3 VCC
1 F
R1061
CAP_F/R
4 CAP/M/F/R
3.3K CAP_LIMIT
5 I_LIMIT
6 MOTOR_GND
C1009
7 GND
0.022 B
8 CYL/LAD_VCO
CONTROL_IN
9 CAP_CTL
LDM_CTL
10 LDM_CTL
2
CYL_FG/PG
11 CYL_FG/PG
CYL_DRIVE
12 CYL_CTL
1
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
G-3
C D
0.5 2.2 5.2 3.3 2.6
C1047
84 83 82 81 80
R1024
16V 10 KA 5.2
VOL_CTL
15K
0
NC
5.2
AV_1
85
OSD_Y
0
TV_A_MUTE
TV_MUTE 86
0
VCR_A_MUTE
VCR_MUTE
87
0
V.REC_ST_H
V.REC.START-H
0
TU_AUDIO_MUTE_H
TUNER MUTE
0
REC_SVL-H
REC_SECAM_VL-H
0
IF_MOD
IF MOD
0
NC MO_SECAM_VL-H
5.2
FF/REW-L
FF/REW-L
0
YC0
0
H_CTL
H_CONTROL
0
TUNER_ON/OFF
DA RGB SW
OSDR 0
R
OSDG 0
G
OSDB 0
B
R1001
1.3
CYL_DRIVE
CYL_SPEED_UP
1M
0
NC DPG
30 R1008
2.2
CYL_FG/PG
DFG
C1007
1K R1014
2.6
H.SW
VIDEO_H.SW
0.0047 B
1K
R1057 2.6
CYL_DRIVE
HIFI_H.SW
NC
C1008 R1064 28
5.6K 1.9
DRUM_PWM 111 C.SYNC
0.18 B R1067 56K 27
2.6
CONTROL_IN
CAP_PWM
112 VCC
56K
0
D_V_SYNC
DUMMY.V.SYNC
0
VSS
C1067 0.4
CSYNC_A
0.1 B 5.2
C1081
CENT_LED_CTL
1 2 3 4 5
0.001 B
0 2.6 2.6 2.6 2.6
R1017
CTL+
C1090
560
R1020
6.3V 22 KA C1016
CTL-
TAB_SW
560
6.3V 47 KANP
0
25
FF/REW-L SW
Q1004
5.2
C1012
KRC103SRTK
0
C1015
0.0039 B
0.0018 B
R1029 1K 1/4W
26
MS_SEN A
Q1009
RPI-352C40N
2.4 1.2
0.9 5.1
5.1 5.1
1 2
2 3 2 3
1 4 1 4
MS_SEN B
0.9 1.4 0.5 1.4
4 3
Q1003
0 5.1
RPI-352C40N
REEL SENSOR
Q1001
RPI-303
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C D
E
22
21
NC NC NC
NC
0 2.5 5.2 1.5 1.6 0 5.2 2.6 0 5.2 5.2 0 0 0 3.5 3.5 3.6 2.8 5.3
79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58
VOLUME_PWM
56 VCC
PAL/SECAM
55 CENT LED
NICAM RESET
AV1
VCR_POWER_ON-H
TV_POWER_ON-H
OTPB_LED
STAND BY
ON_TIMER_LED
REC/OTR_LED
T-REC_LED
TUNER_CTL
SYSCON/TIMER/SERVO IC
REMOCON IN
IC1006
OEC0113B
EXT_IN-L
MO_SYNC IN
POWER_FAIL
TUNER AGC
REC.AFT.S.CURVE
30 KEY_A
AFT.S.CURVE
29 KEY_B
MESECAM_M
28 MSSEN_A
HIFI ENV
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
0.2 2.7 2.6 2.6 5.2 2 2 1.7 5.1 5.1 2.1 1.5 5.2 1.6 0 2.6 0 1.2 0 0
NC
NC
R1021 470
L1001 12uH
C1038 15P
CH
C1022
0.0039 B
R1049
REEL SENSOR NC
4.7K
0
Q1005
5
RPI-303
NC
1.2 0
1 2
D1017
OUT
1SS133 1
5.1
4 3
0 5.1
CAUTION: DIGITAL TRANSISTOR
E
F G
MICON SCHEMATIC DIAGRAM
R1096
1K
C1072 C1030
68P CH 0.1 F
5.0 0 5.0
8 7 6
C1060
0.1 B
1 2 3
0 0 0
0
57
5.2
CENT_LED_CTL
5.2 5.1
NC
PAL-H
5.1 VCR POWER SW
3.1
Q1021
TAB_SW
TAB_SW
KTC3875S_Y_RTK
5.3
R1010 4.4
NC
VCR_POWER_H
4.7K
0
5.2
R1025
5.2
NC
5.1
5.2 22K 1/4W
TV POWER SW
5.1
STANDBY_H
Q1014
0
KTC3875S_Y_RTK
4.4
NC
TV_POWER_H
5.2
REC_LED
C1074 0.01
5.2
R1090 1K
T-REC_LED
5.2
W825
TUNER_CTL C1069
5.2
R1082
22P CH
REMOCON_IN
4.7
R1077 22K 1/4W
CFG_IN2
5.2
10K
IIC_OFF
IIC_OFF R1015
5.3
EXT_IN_L
22K
SERVICE
0
TP1001
SERVICE
5.3
MO_SYNC R1065
0.3
4.9
C1043
C1044
AVCC
5.2
0.1 B
R1062
AGC_M
C1029
2.3
REC_AFT
0
0.01 B
1.5
4.7 0
2.5
W952 23
R1059 R1013 VD SW
H.SYNC
Q1015
0
1K 10K KTC3875S_Y_RTK
0.6
V.SYNC
KEY_A
4.2
5.3
24 C1055 R1048
0.2
KEY_B
5.3 330P CH 220
R1040
0
28
10K
HD SW
1.4 1.4
Q1016
KTC3875S_Y_RTK
5.6
D1001
POWER PAIL SW.
0 POWER_FAIL[DC]
Q1013
KTA1504S_Y_RTK MTZJ15B
R1072
5.0 POWER_FAIL_A
R1018
560 1/4W SW
Q1010 4.9
4.7K
4.6
KRA103SRTK
0
4.6
C1034
0
0
SW
0.1 B
Q1007
KRC103SRTK
R1009
330
R1012
330
NC
0
4
NC
R1054
330
IN GND
2 3
5.1 0
CAUTION: DIGITAL TRANSISTOR
F G
H
(SYSCON PCB)
8
5.0
5
7
4
0
FROM/TO 21PIN IN/OUT
KEY_B
KEY_A
T-REC_LED
REC_LED
R1039
STANDBY_H
1K 6
REMOCON_IN
C1073
EXT_IN_L
TU_AUDIO_MUTE_H
0.01 B
TUNER_ON/OFF
B
FROM/TO CHROMA/IF
PROTECT
5
VCR_POWER_H
TV_POWER_H
HD
NC
VD
33K H_CTL
VD
SDA
SCL
0.01 B IIC_OFF
AGC_M
4.7K
TUNER_CTL
POWER_FAIL[DC]
DEGAUSS_H
AV_1
AV_2
EMERGENCY
4
HD
FROM/TO T'TEXT
OSD_R
OSD_G
AT+5.6V
OSD_B
OSD_Y
SCL
SDA
TEXT_RESET
3
TO SOUND AMP
EMERGENCY
POWER_FAIL_A
TV_POWER_H
TV_A_MUTE
VOL_CTL
D1021
M.P.OFF_H
1SS133
OSD_R
OSD_G
2
OSD_B
PCB010
VMB254
R.SIGNAL
G.SIGNAL
B.SIGNAL 1
CYLINDER AFC SIGNAL
CYLINDER APC SIGNAL
CAPSTAN AFC SIGNAL
H
G-4