Backend (Motor Driver) Circuit - Panasonic SA-VKX65GA Service Manual

12.6. Backend (Motor Driver) Circuit

1 2 3
SCHEMATIC DIAGRAM - 5
A
A
BACKEND (MOTOR DRIVER) CIRCUIT
CLOSE_SW
DV
DV OPEN_SW
B
R8260 R8259
10K 10K
DV TRV_DRV
DV TRDRV
DV MUTE
HD DV DGND
HD DV PW_DVD_+3R3V
C
FODRV
DV
R8261 R8262
10K 10K
SP_DRV
DV
LD_CW
DV
DV LD_CCW
L8251
J0JHC0000117
PW_M_+9V
HD DV
MGND
DV
C8256
0.1
D K8251 0
DV F-
DV F+
DV T+
T-
DV
E
DV FB
F
G
DV: BACKEND (DV5U): SCHEMATIC DIAGRAM - 1 ~ 4
MD: BACKEND (MOTOR DRIVER): SCHEMATIC DIAGRAM - 5
VI: BACKEND (VIDEO): SCHEMATIC DIAGRAM - 6
H HD: BACKEND (HDMI): SCHEMATIC DIAGRAM - 7
1 2 3
4 5 6
: +B SIGNAL LINE
R8263
4.7K
IC8251
C0GBY0000117
5CH MOTOR DIVER
1 VINFC MUTE 28
2 TRB1 BIAS 27
3 REG02 VINTK 26
R8264
4 VINSP TRB2 25
1K
5 REG01 NC 24
6 FWD VINSL 23
7 REV GND 22
29 GND(FIN) GND(FIN) 30
R8265 1K
8 VCC(9V) VCTL 21
9 VOLD- NC 20
C8252
16V47 10 19
VOLD+ PVCC
11 VOSP+ VOSL+ 18
12 VOSP- VOSL- 17
13
VOFC- VOTK- 16
14 VOFC+ VOTK+ 15
R8268 R8267 R8269
18K 68K 68K
VDD
5 IN+ 1
C8557
0.1
GND 2
C8251
6.3V100
OUT
IN-
4 3
R8270 18K
K8252
0
IC8252
C0ABGA000090
OP-AMP
4 5 6
7 8 9
FP8252
LB8252 J0JGC0000063
1 CLOSE_SW
LB8251 J0JGC0000063
2 DGND
TO LOADING P.C.B.
LB8253 J0JGC0000063
3 OPEN_SW
LB8254 J0JGC0000063 (DVD MECHANISM UNIT)
4 LD-
LB8255 J0JGC0000063
5 LD+
INNER_SW DV
VHALF DV
R8258
6.19K
FP8251
LB8256 J0JGC0000063
1 SP-
LB8257 J0JGC0000063
2 SP+
LB8258 J0JGC0000063
TO TRAVERSE P.C.B.
3 INNER_SW
LB8012 J0JGC0000063
4 DGND (DVD MECHANISM UNIT)
LB8259 J0JGC0000063
5 TR-
LB8250 J0JGC0000063
6 TR+
L8252
J0JHC0000117
PW_M_+5V DV
D_GND DV
7 8 9
61
10 11 12 13
SA-VKX65GA/GS BACKEND (MOTOR DRIVER)
10 11 12 13
14
A
B
C
D
E
F
G
CIRCUIT
H
14