Tracking Control Related Signal (System Checking) - LG DP122NU Service Manual

7. TRACKING CONTROL RELATED SIGNAL (SYSTEM CHECKING)

25
26
27
FIG 7-1 (CD)
25
26
27
FIG 7-2 (DVD)
U4 U4
FOCUS_S 1
VINFC
TR_B1 2
TR_B1
REGO2 3
REGO2
SPDL_S 4
VINSL
REGO1 5
REGO1
SL- 6
FWD
SL+ 7
REV
29
GND
GND 8
VCC1
LOAD-
9
VOTR-
LOAD+
10
VOTR+
SP_MOT- 11
VOSL+
12
1 1
VOSL-
FACT- 13
VOFC-
14
FACT+
VOFC+
AM5890S AM5890S
3-24
TP50 TP50
28 DRVSB DRVSB
25
MUTE
27 VREF2
BIAS
26 TRACK_S
VINTK
25 TR_B2
TR_B2
RESET
24
RESET
23 SLED_S
VINLD
22
GND
30
GND
21 GND C4 0.1uF/25V/Y5V C4 0.1uF/25V/Y5V
GND
VCTL
20
VCCD
19
VCC2
18 SL_MOT+ R22 R22 0 0 SL-
VOLD-
17 SL_MOT- SL+
R23 R23 0 0
VOLD+
16 TACT-
VOTK-
15
TACT+
VOTK+
26 27