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AM-NX1
6-6.
SCHEMATIC DIAGRAM – MAIN Board (1/4) – •
CN501
22P
TRK+
FCS-
FCS+
TRK-
LD-A
LD-K
MDVCC
NC
GND
MON
VREF
VCC
S1
Jy
Jx
Iy
OP
Ix
FLEXIBLE
D
BOARD
C
B
A
S0
M702
(SLED)
U
N
CN701
C701
10P
0.047
1
SLEDW
W
V
SLEDV
SLEDU
SLEDN
M703
HD_DRV-
OVER WRITE
HD_DRV+
HEAD UP/DOWN
CLVW
CLVV
CLVU
U
N
CLVN
10
W
V
M701
(SPINDLE)
RB702
10k
R708
R709
1k
•
See page 39 for Waveforms.
See page 46 for IC Block Diagrams.
(1/4)
TRK+
FCS-
FCS+
TRK-
C718
0.1
Z1
Z2
SLD_CON_W
PD_S1
SLD_CON_V
Z3
Z4
Z5
Z6
Z7
Z8
SLD_CON_U
UI2
Z9
SLD_PWM
PWM2
Z10
SLD_MON_U
CPUO2
PD_S0
SLD_MON_V
CPV02
SLD_MON_W
RB701
CPW02
2.2k
Y4
XRST_MTR_DRV
C715
OE
0.1
Y5
GND1
Y6
VC
VG
CLV_MON_W
C703
C705
CPWO1
0.047
0.047
Y1
CLV_MON_V
CPVO1
Y2
CLV_MON_U
CPUO1
Y3
CLV_PWM
PWM1
Y14
CLV_CON_U
UI1
Y10
Y11
Y12
Y13
C717
0.47
CLV_CON_V
CLV_CON_W
C723
22
6.3V
Y7
Y8
Y9
R721
470
S
R710
R712
Q704
220k
220
R713
S12302DS
1M
-T1
+2.6V
-1
-2
REGULATOR
Q703
Q705
XP4601-TXE
UN9214J-(TX).SO
SWITCHING
IC721
XC62EP2602MR
Q704,705
B+ SWITCH
1k
R711
47k
SL701
TF1
FI2
TR1
RI2
Y14
COM2
Y4
CPUI2
Y5
CPVI2
Y6
CPWI2
C506
FOCUS/TRACKING
0.01
NC
COIL DRIVE,
SPINDLE/SLED
GND2
Y9
MOTOR DRIVE
CPWI1
IC701
Y8
SC111258EPR2
CPVI1
Y7
CPUI1
Y13
COM1
FR1
RI1
FF1
FI1
S
Q701
S12302DS
-T1
C505
10
6.3V
C719
R702
C721
R701
0.1
1M
0.1
0
Q701,702
B+ SWITCH
Q721
FMMT717TA
R703
R707
+2.6V
1M
47k
REGULATOR
R704
-1
-2
R722
220k
1k
Q702
XP4601-TXE
R706
1M
R705
1M
C724
C725
10
0.1
10V
EXET_PWR
(Page 44)
42
42
C513
0.022
C524
C528
1
0.01
SL502
C535
1
R509
0
TE
SL501
TE
CN
NPPO
CPGND
OFTRK
CLK
TON-C
CCSL2
BOTM
BOTM
CDN
PEAK
PEAK
ADFG
Z10
D
RF AMP,FOCUS/TRACKING
Wpp-LPF
Z7
ERROR AMP
A
AGND
∗
Z8
B
AGND
IC501
Z9
SN761058AZQLR
C
ADIP-IN
CSP
AVCC
SMON
Z4
(Chip Size Package)
Jx
AGND
Z3
Jy
A-C
Z5
Iy
D-C
C512
C514
10p
2200p
C511
C520
10p
0.1
C523
2200p
C519
0.1
R510
R508
0
1k
R503
1
C510
R502
C547
C508
L504
10
1
10 6.3V
0.1
10µH
6.3V
R501
100k
C504
C502
L501
L505
4.7
10µH
0.1
10µH
6.3V
Q502,503
B+ SWITCH
R518
100k
R517
10k
Q501
2SA1577-T106-QR
Q502
C550
0.1
AUTOMATIC
2SA1745-6.7-TL
POWER
R521
47k
CONTROL
A1
A2
L502
10µH
C507
10
6.3V
C526
0.047
FS256
C529
0.1
C537
0.022
C538
0.022
C533
0.01
(Page 43)
S_MON
C527
4700p
Z7
C534
4700p
Z10
A3
A4
A5
A6
A7
C1
R520
47k
-1
-2
R519
Q503
10k
XP1501-TXE
(Page 45)
C2
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
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