LG RD-JT30 Service Manual page 54

5
D
P12V
P5V
ALVDD
R53 R54 R55 R56
1K 1K 1K 1K
C
EXT-ARSTZ
MTRSELZ
MTRCLK
C97 C98
2700P K 4700P K
50V 50V
B
A
5
4
L3
80 OHM
C86
C87 C88 C89
10U
0.1U K 0.1U K 0.1U K
16V
16V 16V 16V
L4
ALVDD
80 OHM
C91 C92
0.1U K 0.1U K
P5V
16V 16V
U9
CKMTR1 R52 39.2F
2 4
R57
74V1G14S
1K
BRAKE
EXT-ARSTZ
MTRSELZ
MTRCLK
MTRDATA
C D 2
C W D
C D 1
C R ES
CST
C99
2700P K
50V C100 C101
0.22U K 1U K
1206 1206
50V 25V
MFILT
Include Guard Ring Around
these components on top and
buttom layers
4
3
C90
0.1U K
16V
DN4
BAT54SW
A8902
U10
1
VBB
15
VDD
OUTA R59 1.5
11 5
BRAKEZ OUTA
OUTB R60 1.5
16 8
OSC OUTB
20
RESETZ
OUTC R61 1.5
21 9
CSZ OUTC
22
CLOCK
C WC TR
23 10
DATAIN CNTRTAP
2 17
CD2 DATAOUT
CW TACH
3
CWD
24
CD1
12
CRES
4 6
CST GNDA
7
GNDB
14 18
SECDAT GNDC
13 19
FILTER GNDD
See Motor Timing CAP. Chart
R62 MFILT1
1.5MF
# of Poles
C102 C103
0.022U K 0.33U Z
50V 0805
50V
These combinations are recommended starting points.
3
2
3 3
DN1 DN2 DN3
3
BAT54SW BAT54SW BAT54SW
R48 R49
C93 C94 C95
150 150
1000P J 1000P J 1000P J
50V 50V 50V
C96
0.022U K
50V
(open)
2X Motor Timing Capacitor Selection Guide
C97 C98 C99
8 0.0033uF 0.0056uF 0.0033uF
12 0.0027uF 0.0047uF 0.0027uF
16 0.0015uF 0.0033uF 0.0015uF
2
1
D
3
R50
150
J4
TP14
G2
C
TP15
C W Y3
4
TP16
CW Y2
3
TP17
CW Y1
2
CWC TR
1
G1
20K2170004
B
C96
0.01uF
Not Installed
Not Installed
A
1