Laser Power Control Related Signal; Spindle Control Waveform - LG DP471B Service Manual

5. LASER POWER CONTROL RELATED SIGNAL

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6. SPINDLE CONTROL WAVEFORM

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MDI
CD_LD
DVD_LD
FIG 5-1
SP-
SP+
VOTK
FIG 6-1
CN5
F
11
12
VREF1
13
14
E
15
16
CD-VR
17
DVD-VR
18
PUH-CDLD
19
DVDMDI
20
5V_RF_EMI CDMDI
21
22
PUH-DVDLD
23
24
12
17
U4
15
VOTK+
16
VOTK-
17
VOLD+
18
VOLD-
19
VCC2
20
NC
21
VCTL
/0402
G2
G2
22
GND
O
23
VINLD
24
NC
B3
25
TRB2
26
VINTK
F2
27
BIAS
MEA
28
MUTE
AM5888S
R44
CD5888CB
3-13
13
C164 0.1U/25V/0402
C163 0.1U/25V/0402
R165 0/J/0603 CD_VR
R160 0/J/0603 DVD_VR
L7 1A/120OHM/0603 PUH_CDLD
C20 100P/50V/0603
L5 1A/120OHM/0603 PUH_DVDLD
C11 100P/50V/0603
14
15
FOC+
14
VOFC+
FOC-
13
VOFC-
12
VOSL-
SP-
11
VOSL+
LOAD+
10
VOTR+
LOAD-
9
VOTR-
8
VCC
C33
G1
G1
7
REV
6
FWD
REGO1
5
REGO1
SPDCO
4
VINSL+
REGO2
3
REGO2
TR_B1
2
TRB1
FCO
1
VINFC
LGE Internal Use Only
16