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AM-NX9
6-8.
SCHEMATIC DIAGRAM – MAIN Board (3/4) – •
TP602
HR601
AOUT
OVER
WRITE
HEAD
TP601
BOUT
CN651
6P
(USB)
VBUS
DATA-
DATA+
ID
GND
SHIELD
See page 33 for Waveform.
(3/4)
C631
C630
47
0.1
4V
Q604
MCH6616-TL-E
OVER WRITE
HEAD DRIVE
C671
0.1
D606
D607
MA2YD1700LS0
MA2YD1700LS0
C632
100p
Q605
CPH5614-TL-E
OVER WRITE
HEAD DRIVE
VB
BATM
C611
CHGSW
100p
RS
C610
R620
R621
INP2
100p
220k
100k
INM2
RF2
OVER WRITE HEAD DRIVE
DCIN
POWER CONTROL
CHGMON
C609
0.1
XPC18A22AEPR2
SVREF
GND
GAIN
CHG
DREG
R608
10k
R609
10k
UDM
UDP
FB652
0
D652
DF3A6.8FE
C651
0.01
•
See page 40 for IC Block Diagrams.
TP1620
(V_REC)
C615
C617
0.1
0.1
R612
2.2
R613
2.2
R674
0
C616
0.1
C618
0.1
C1H
C1L
VC2
C622
0.1
VREF
C623
0.01
CVREF
GND
DW_BT
DW_TP
RF1
IC601
R614
R616
C624
INM1
470k
2.2k
100p
INP1
R619
C621
DTC
22k
0.01
VREC
VRECO2
R617
10k
L604
10µH
C613
C614
10
10
6.3V
6.3V
VREC_PWM
FB651
C673
R671
0
0.1
2.2M
R672
100k
R655
1k
L651
MA22D2800LS0
22µH
R654
C658
0
22
6.3V
C659
1000p
-1
-2
Q651
UMD12N-TR
Q653
FMMT617TA
USB ON/OFF
DC/DC
SWITCH
Q652
XP151A12A2WR
CONVERTER
R656
C660
470k
B+ SWITCH
2200p
38
38
(Page 36)
VREF_MON
Q603
TS8K1TB
B+ SWITCH
D
D
C626
10
6.3V
S
S
G
G
L603
10µH
C627
C628
47
10
4V
6.3V
WK_DET
Q672
UN9210J-(TX).SO
WAKE UP
SWITCH
R567
0
R663
R662
D653
0
0
D654
DC/DC CONVERTER
MA728-TX
R660
100
R658
GND
CE
4.7k
VDD
Q654
EXT
VOUT
UN9155J-
R659
(TX).SO
C661
2.2k
R661
IC651
47
SWITCH
47k
XC6367A331MR
10V
19
20
21
23
25
26
27
28
(Page 39)
53
RF2
54
DCIN
55
29
(Page 37)
52
24
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