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Motor Drive - Akai CFTD2052 Service Manual

Lcd color television/dvd video player
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A
B
8
7
6
42
41
5
1
2
4
FROM/TO LOADER
C2301
CP2302
0.1 B
00_6232_012_006_800
R2302
LIMIT SW
12
INSW
3
100
11
W
10
V
9
U
8
GND
7
W-
6
W+
5
V-
4
V+
3
U-
2
U+
1
+5V
2
R2330
10K
FROM/TO LOADER
CP2301
00_6232_009_006_800
ST2-
9
B-
ST2+
8
B+
ST1-
7
A-
ST1+
6
A+
5
GND
4
LDO+
1
3
DISC_END_SW
2
LDO-
1
DISC_IN_SW
A
B
G-9
C
MOTOR DRIVE SCHEMATIC DIAGRAM
HS76
HS2301
763WSA0031
R2320
100K
R2319
R2331
C2305
C2306
C2309
10K
15K
0.1 B
0.1 B
0.1 B
R2303
15K
40
39
38
37
36
35
34
33
32
31
30
29
28
27
3
4
5
6
7
8
9
10
11
12
13
14
15
16
C2310
C2311
0.0022
0.0022
B
B
C2326
0.1 B
R2334
100
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C
D
E
(DVD PCB)
R2314
2.2
R2316
R2347
5.6K
+-1%
5.6K +-1%
11
R2304
5.1K
R2350
5.6K +-1%
26
25
24
23
22
7.1
2.7
C2329_1
8
VCC
16V
22
KA
1
17
18
19
20
21
1.6
1.6
JG021 SLIDE CONTROL1
JG022 SLIDE CONTROL2
NOTE:THE DC VOLTAGE EACH PART WAS
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK.
D
E
F
G
R2351
5.6K +-1%
JG009 TRACKING CONTROL
SPINDLE_PWM
JG011 SPINDL CONTROL
JG012 FOCUS CONTROL
2.7
2.7
7
6
5
-
REF2
REF1
-
GND
2
3
4
1.6
0
F
G
H
8
7
TO RF AMP
6
TR-
TR+
FO-
FO+
5
REFDAC
JG007
FROM/TO MPEG/MICON/DSP
PSMUTE
SBMUTE
JG010
LDM
LOADING CONTROL
HOME
DISC_END_SW
4
DISC_IN_SW
SLED_PWM
SLED_PWM2
SPINDLE_PWM
FOCUS_DAC
TRACK_DAC
JG020
SPD_FG
3
TO AUDIO/VIDEO
DISC_IN_SW
FROM REGULATOR2
B2301
P.CON+A5V_D
FCM2012H-102T04
2
P.CON+7V_D
M_GND
GND
D_GND
P.CON+3.3V_D
PCB130
VMD327
1
H
G-10

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