Toshiba SD-25VLSR Service Manual page 131

A B
SYSCON/SERVO/TIMER/VPS
8 SCHEMATIC DIAGRAM
(VCR PCB)
FROM/TO POWER
TX
7
RX
GND
MOTOR_GND
P.CON+5V
AT+5.2V
DVD_POWER
AT+5V[M-CON]
POWER_FAIL
POWER_ON-H
C3003
CAP_VCO
35V 330 YK
AT+12.6V
C3004
6
0.1 B
FROM/TO DECK
CP3001
TMC-J12P-B2
R3038
1 CAP FG
1K
2 CAP VCO
3 VCC
R3004
CAP_F/R
4 CAP.M/F/R
3.3K 1/4W CAP_LIMIT
5 I LIMIT
6 MOTOR GND
7 GND
8 LD/CY VCO
CAP_CTL
5
9 CAP CTL
LDM_CTL
10 LDM CTL
R3037
11 CYL FG/PG
1K CYL_CTL
12 CYL CTL
5.1 5.1
0.4
0.4
EOT
4 BOT
REC SAFETY SW
SW3001
TAB_SW
LSA-1144EAU
RX BUFFER
Q3012
5.1
DTA124EKA
0
3
5.1
R3055
R3046
R3045
4.7K
4.7K
47K 5.1 5.1 5.1 0.2 5.1 0 0 0
8 7 6 5 4 3 2 1
C3048 R3041
5.1
4.3
0.01 B 220
0 5.1
D2 32
D1
2.4 4.8
9 RESET
XOUT D0
SUB MICON IC
10 CNVSS IC3003
0
2.3
XIN OEC7082A P13
X3003
2 0
EFOMC4004T4
0
VSS P12
4MHz
15 VDCE
C3049
5.1 0
VDD P11
16 P30/INT0 25
P03
0.1 B
0
0
P10
5.1
0
17 18 19 20 21 22 23 24
0 0
0 0 0 0 0 0
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
A B
H-11
C
C3032
0.0033 B
27
C3031
0.0068 B
26
R3030
3.3K R3032
3.3K
0 0 2.6 2.6 2.6
80 79 78 77 76
0
NC P MUTE-H
0
JACK_SW1
JACK SW1
ST_RESET 0
ST_RESET
5.0
TAB_SW
TAB_SW
5.5
POWER FAIL REEL-T
R3050
0
SECAM_IN REEL-S
22K
2.2
CAPSTAN FG CAPSTAN FULL
C3043
0
AMP VSS
0.0039
MESECAM-H 0
MESECAM-H
B
C3052
1.3
DRUM FG/PG
C3033
0.01 B C3042
2.5
AMP VREFOUT
C3041
0.0022 B
16V 47 KA
2.5
AMP VREFIN
C3037
R3036
50V 4.7 KA
0.1
C
10K R3034
50V 4.7 KA 2.5
CTL-
CTL -
560 R3035
2.5
CTL+
CTL +
C3039
C3036 560
2.5
AMP C AGC DET
0.001 B
25V 10 KA 2.5
CTL AMP OUT AFT SC
5.1
AMP VCC
5.1
A VCC
0
PERI_CTL_IN
C3040
1 2 3 4 5
0.1 B
0
4.7 0 0.1 0.1 0 1.1 5.0 5.1 4.9 4.9
FF/REW_SW
Q3010
PERI_CTL_IN
DTC124EKA
5.1
0
R3031
RX BUFFER
10K
Q3013
DTC124EKA
0
4.8
RX
0
SUB_CS
TX
R3048
47K
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
C
D E
C3022 0.47 B
C3024
220P CH
NC
NC
0 0 0.4 1.2 1.2 1.3 2.5 1.2 5.1 4.9 5.1 4.2 5.1 5.1 3.2 0 0 0 0 1.6 1.5 2.0
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55
OSD VCC 53
80
CVOUT 52
79
SERVICE1 51
78
SYSCON/SOFTWARE/SERVO IC
IC3001
OEC7113A
EOT 3
2 SEG 7 30
1 SEG 6 29
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
0 0.2 0 0 5.1 5.1 4.1 2.5 2.5 0 4.1 4.1 4.1 0 0 0 3.0 3.0 3.9 1.0
MS_SEN A
MS_SEN B
Q3006
Q3003
RPI-352C40N
RPI-352C40N
5.0 5.0 3.8 5.0
2 3 2 3
2.4 1.2
1 4 1 4
2 1
3.8 4.9 2.6 1.4
3 4
5.0 0
REEL SENSOR-T REEL SENSOR-S
Q3008
RPI-303
CAUTION: DIGITAL TRANSISTOR
D E
F G
L3001
100uH0305
C3017
C3012 0.022 B
16V 47 YK
C3019
R3008
SERVICE
5.1
TP3001
15K 25V 10 KA
NC
BLUE BACK SW 4.9
0 3.4 R3011
0.6
Q3007
R3024
VIDEO MUTE
DTC124EKA
2.2K
Q3011
390 1.1 DC CLAMP
5.1
KRA101SRTK Q3005
1.1
C3021 L3003 1.1
KTC3875S_Y_RTK
C3020
270P CH 2.2uH
3.4
2.7
10V 100 YK
BUFFER
Q3004
0
KTA1504S_Y_RTK
R3053 C3057
4.9 0.1 5.0
1K 0.1
B
54 53 52 51
R3006
1.1 Y/C_VIDEO_OUT
CVIN
220
0
OSC VSS
W835
2.3 FSC
FSCIN
R3010 C3015
1.7
LP
1K C3018 0.01 B
0
NUB
0.0047 B C3011
2.3
OEC_OUT
20P CH
2.3
OSC_IN
R3012 C3010
5.1
CLKSEL
33K 1/4W 18P CH
5.1
VV-H
NC
0 NA_REC-H
NA_REC-H
C3014
0
VSS
X3002
18P CH
28
2.3
X OUT
C3009
12MHz
2.0
X IN
100CT01207
18P CH C3013
5.1
VCC
X3001
22P CH
0.9
29
XCOUT
C3008
1.4 32.768KHz
XCIN
100DA32R01
20P CH
5.1
RESET
R3033 C3035
3.0
SEG 10
C3044
47K 0.47 F
4.9
SEG 9
C3047
5.5V 0.047F R3040
3.0
SEG 8
18K 1/4W 25V 10 KA
27 28 29 30
JG3001 D3002
1SS133
JG3002
0 5.2 5.2
3 2 1
GND IN OUT
NC NC
4 5
0 0
NC NC
1.2 0
2 1
1.2 1.5 0 5.1
5 6 7 8
3 4
5.0 0
Q3009
4 3 2 1
RPI-303
0
0 0 0
CAUTION: DIGITAL TRANSISTOR
F G
H
8
FROM/TO Y/C/AUDIO/HEAD AMP
V_H.SW
NA_REC-H
DUMMY_V.SYNC
A_MUTE-H
IIC_DATA
IIC_CLK
ENV.DET
CTL+
CTL-
7
Y/C_VIDEO_OUT
FSC
S_DET_OUT
MESECAM-H
6
FROM/TO 21PIN/TUNER
JACK_SW1
PERI_CTL_IN
IIC_CLK
IIC_DATA
OSD_VIDEO_OUT
AFT
DVD_RESET
DVD_MUTE
DVD_POWER
5
FROM/TO DISPLAY
S1/T-REC
SEG2
SEG3
S4/REC
SEG5
SEG6
SEG7
S8/STB
SEG9
4
SEG10
GRID1
GRID2
GRID3
GRID4
G5/POWER
KEY-A
KEY-B
REMOCON
VCR_LED
DVD_LED
3
FROM/TO Hi-Fi/DEMODULATOR
ST_RESET
HIFI_REC_MUTE
HIFI_ENV.DET
HIFI_H.SW
IIC_CLK
2
IIC_DATA
A_MUTE-H
PCB010
VMD350
1
H
H-12