6-1
MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ................................................... 6-1
6-8
6-9
6-10
Internal IC diagram - EW484M1644VTA
Internal IC diagram -V5888S HSOP
MUTE
BLAS
VINTK TRB-2
NC
VINLD
GND
8 2
7 2
6 2
5 2
4 2
23
22
10k
MUTE
10k
+ -
25k
Thermal
Shut dowm
25k
10k
+
-
+
-
10k
1
2
3
4
5
6
7
VINFC
TRB-1
RSGO2 VINSL+ REGO1
FWD
REV
6-1
VCTL
NC
VCC2
VOLD- VOLD+ VOTK- VOTK+
1 2
0 2
9 1
8 1
17
16
15
15k
Actuator
Spindle
+
Driver(6X)
Driver(4X)
-
Actuator
Sled
25k
Driver(4X)
Driver(6X)
Prc-DRV
TRAY
DRIVER
VCC1
RGND
8
9
10
11
12
13
14
VCC1
VOTR- VOTR+ VOSL+ VOSL- VOFC-
VOFC+
Vcc2
Vcc2
Vcc1