MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ................................................... 6-1
Voltages ..................................................................... 6-2
Circuit Diagram (Top Left) ......................................... 6-3
Circuit Diagram (Top Right) ....................................... 6-4
Circuit Diagram (Bottom Left) .................................... 6-5
Circuit Diagram ( Bottom Right) ................................ 6-6
PCB Layout(Top View) .............................................. 6-7
PCB Layout(Bottom View) ......................................... 6-8
Electrical Parts list ..................................................... 6-9
6-1
6-1
28
27
26
25
21
22
23
24
20
19
18
15
16
17
MUTE
Thermal
Shut dowm
10k
10k
10k
10k
25k
25k
25k
15k
Vcc1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
VINFC
TRB-1
RSGO2 VINSL+ REGO1
FWD
REV
VCC1
VOTR- VOTR+ VOSL+
VOSL-
VOFC-
VOFC+
MUTE
BLAS
VINTK
TRB-2
NC
VINLD
GND
VCTL
NC
VCC2
VOLD- VOLD+ VOTK- VOTK+
RGND
VCC1
Prc-DRV
TRAY
DRIVER
Sled
Driver(4X)
Actuator
Driver(6X)
Spindle
Driver(4X)
Driver(6X)
Actuator
Vcc2
Vcc2
+
-
+
-
+ -
+ -
+ -
+ -
Internal IC diagram -V5888S HSOP
Internal IC diagram - EW484M1644VTA