Sanyo VHR-VT221A Service Manual page 41

A B
8 FROM/TO POWER
(S/S)
GND
(MOTOR)
GND
AT+5.8V
P.CON+5V
AT+5.8V_A
POWER_ON-H
POWER_FAIL
CAP_VCO
AT+12.6V
7
FROM/TO DECK
C1001
CP1001
TMC-J12P-B2
35V 220 YK
CAP_FG
1 CAP_FG
2 CAP_VCO
6
3 VCC
R1003
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
CAP_CTL
9 CAP_CTL
W807
10 LDM_CTL
CYL_FG/PG
11 CYL_FG/PG
CYL_CTL
12 CYL_CTL
5
5.2 5.2
BOT SENSOR
Q1005
PNA2604M010R
0
0
TAB_SW
R1007
47K
4
4.17
4.97
CENT_LED
CENT SW
Q1010
0
KRC103SRTK
3
2
1
A B
45
C
SYSTEM CONTROL/SERVO/TIMER SCHEMATIC DIAGRAM
R1028
27K 1/4W
NC NC
5.0 0.3 0 0 0.1
C1002 30 29 28 27 26
5.0
18P CH NC NC
0
NC POWER OFF-H
0
PROCESS-H
NC
C1003 R1013 0
NC
18P CH 470
0
29
C1004 NC
30
4.8
18P CH CLKSEL
5.0
VCC
2.3
X IN
C1005 R1014 2.3
X OUT
18P CH 100
0
VSS
1.4
XC IN
1.2
XC OUT
5.0
RESET
RESET
R1037 0
SERVICE1
10K 1/4W R1006 0 51
SEVICE2
10K 1/4W 52
0
NC I/O CTL
53
0
LDM FWD
0
EOT
NC
NC
R1043
0
BOT
RCB-H
10K
SEG 1
SERVICE 1
51 52 53 54 55
TP1001
NC
3.84 4.42 3.84 3.29 4.35 2.14 3.79 3.79 3.72 4.45 4.13 4.21 4.35 4.35
REEL-S
REEL-T
MS_SEN B MS_SEN A
Q1006 Q1007
RPI-352C40N RPI-352C40N
5.0
1.3 0.8 5.0
2 3 2 3
2.4 1.2
2 1
1 4 1 4
1.4
0.8 0.5 1.4
MSSW_A
3 4
5.0 0
MSSW_B
17
NOTE:
THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
C
D E
(SYSCON PCB)
NC NC NC NC
NC NC
5.0 0 0 1.2 0 5.0 2.5 2.5 0.1 4.8 0 2.1 0.7 1.4 1.4 5.1 5.1 1.3 2.2
0 0
25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5
1 AFT SC
NA_REC-H
VV-H 2 AGC DET
3 EOT
SYSCON/SOFTWARE/SERVO IC
IC1001
OEC7070B
78 CYL CTL
SEG 2
79 REEL-S
SEG 3
80 REEL-T
SEG 4
56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76
4.85 5.0 5.0 5.0 3.0 3.0 0 0 0 1.9 2.5 1.8
NC NC
NC NC
R1027
3.3K
1/4W
R1024
5.6K
1/4W
1.2 0
4.9 4.9 0 5.0
2 1
5 6 7 8
SDA SCL
TEST VCC
3 4
0
5.0
VSS A2 A1 A0
4 3 2 1
18
0 0 0 0
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
R1044
2.2K 1/4W
W814
C1029
6.3V 47 KA
0.3 0.3 0 2.3
4 3 2 1
R1049
MSECAM-M
C1022 22K
5.6 FF/REW SW
A VCC
Q1008
0.1 F C1043
5.2 KRC103SRTK
AMP VCC
C1020 4.9
0
C1027 0.1 F
2.5
0.0039 B
CTL AMP OUT
0.1 F
0
0
CTL VSS
4.9
C1021 0
2.6
AMP C
C1018
16V 10 KA
2.6
0
CTL AMP IN
FF/REW SW
16V 10 KA C1023
0
Q1009
CTL SW OUT
R1045 KRC103SRTK
0.1 F
0 0
CTL+
CTL +
560 R1046
0
CTL -
C1019
560
2.6
AMP V.IN
C1024
CTL-
2.6 50V 4.7 KA
AMP V.OUT
6.3V 47 KA
0
AMP VSS
2.1
DFG
R1030 C1034
0.7
NC
10K 0.0022 B
2.6
CFG
0.4
SYNC
C SYNC
PERI_CTL
4.2
P.FAIL
TAB_SW
77 78 79 80
CLOCK
0 5.0
TP1003
NC
R1041 C1017
33K 0.1 B
R1038
C1015_1
22K
0.0068 B
C1031
0.0033 B
NC NC
0 0
5 4
OUT IN GND
1 2 3
5.1 5.2 0
CAUTION: DIGITAL TRANSISTOR
F G
H
8
TO OSD/VPS
CG_CS
CG_CLK
CG_DATA
7
FROM/TO Y/C/AUDIO/HEAD AMP
VV-H
V.H_SW
PICTURE_CTL
NA_REC-H
DUMMY_V.SYNC
A_MUTE/TRICK-H
IIC_DATA
IIC_CLK
ENV.DET
6
CTL+
CTL-
SYNC
FROM/TO OPERATION
SEG1
5
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
SEG10
GRID1
GRID2
GRID3
GRID4
4
GRID5
KEY-A
CH.UP_SW
REMOCON
AT+5V
FROM/TO TUNER
IIC_CLK 3
IIC_DATA
AT+5V
AFT_S_CURVE
2
PCB010
VMA231
1
H
46