Dvdm Assy 1/4 [Rf Ic Block] - Pioneer DV-373-S Service Manual

1

3.5 DVDM ASSY 1/4 [RF IC BLOCK]

A
B
REAR
ST1-(A)
CN104
B
ST1+(A)
VKN1235
or VKN1180
ST2+(B)
to STEPPING MOTOR
ST2-(B)
FRONT
REAR
LOAD-
CN103 LOAD+
SW2
B5B-PH-K-S
to LOAB ASSY
GND
SW1
FRONT
C
V+5S
U+
U-
FRONT V+
V-
CN102
W+
VKN1243
or VKN1188
W-
to SPINDLE MOTOR
HB
U
REAR
V 10
W 11
INSIDE
12
D
24
FOCS RTN
23
FOCS DRV
TRKG RTN 22
21
TRKG DRV
VSHF 20
GND
19
LD(650) 18
PD 17
LD(780) 16
FRONT
GND 15
VR780
14
CN101
13
VRCOM
VKN1464- -TFB
to PICK UP 12
VR650
E
VREF(2.1V) 11
REAR
10
B2
B1
A
OEICG
C
780/650
B4
B3
VCC
GND
F
B 1/4
22
1
2
DVDM ASSY
1/4
(VWS1575)
S
ST1-
4
S
ST1+
3
S
ST2+
2
S
ST2-
1
from IC301
LOAD-
1
LOAD+
2
TRIN
3
4
TROUT
5
GND
to IC301
V+5S
C6
1
1
HU+
2
HU-
3
GNDM
HV+
4
(R103,104,106,107:2125 size)
HV-
5
HW+
6
HW-
7
17
8
U
9
V to IC301
W
LIMIT
GND
V+5S
F
F-
F
F+
T
T-
T
T+
LD1
LD2
V20
MDI1
C233 0.1 Q5
UM5K1N-TRB
4
3
RF
R240
C
2
***
2SC4081(QR)-TLB
RF
B
9
R239 GNDS
*** RF
F
8
***
R16
7
RF
E
6
5
R234 ***
RF
A
4
R233 ***
RF
D
3
C231
2
***
C232
1
0.1
C230
0.1
GNDS
2
3
F
ENDM
51pin
STBY
50pin
IC101 M63018FP-TBB
V+6
49pin
Q5
UM5K1N-TRB
6
V+5S
R18
1 IOA
52pin
100K
2
R13
GNDS
100K
R15
Q4
IOA
10K
52pin
GNDS
OEICG
53pin
IOA
52pin
from IC301
DV-373-S
3
4
R40
T
V+3_RF
GND
V+6
FTS DRIVER
(R115–120:2125 size)
GNDM
R35 10K
R30 10K
R28 10K
R27
10K
Q7
HN1A01F(YGR)-T
or IMT1A-T
(1/2)
L8
***
Q7
HN1A01F(YGR)-T
L9
or IMT1A-T
(1/2)
***
V+3_LD
Q8
HN1A01F(YGR)-T
Q8
or IMT1A-T
HN1A01F(YGR)-T
(2/2)
or IMT1A-T
(2/2)
4
R36
10K
TROPEN
R38
TRSO
10K
FOSO
10K
DMSO
R42
10K
V1P4
FG
V+6
B
2/4
FMSO
to IC601
V1P4
(page2/4)
PWMOUT1
V+3_RF
LDO2
LDO1