Sony MDR-NC300D, Service Manual

Page: 11 / 24

MDR-NC300D
MDR-NC300D
11 11
5-3. SCHEMATIC DIAGRAM - MAIN Board - • See page 9 for IC Block Diagrams. • See page 14 for IC Pin Function Description.
TP302
TP412
TP623
D101
D203
D201
IC501
CN303
TP151
TP351
TP251
TP102
TP103
TP101
C103
C102
Q101
C104
R251
R151
R152 C151
R252 C251 R253 C252
R255 C253 R259
R257 R102
R101
R258
C302
R262
R103
C109
C204
C101
C202
C203
R202
R201
C308
C303
C401 C402
R107 R108
C105 R109
D103
R203
R204
R207 R208
C205 R209
C310 C309
C209
R162
C404 C403
L404
L403
10mH
10mH
C502 R535
R534
R537
R533
R532
R536
R531
C206
C544
C545
R527 R525
R526
C255
C155
R157 R158
R159 C153
C301
C152 R153
R155
C540
C541 C539
C538 R524
C536
C537
R522
R523
C532
C533
R516
C531 C529
C530 C528
R519
C527 C526
C523
R518
R517
C522
C525
C524
C501 C503
C504
R505
R504
C510
C509
C513
C514
C515
C208
R216
R215
C207
C108
R116
R115
C107
C520
C521
C306
C617
S603
C618
C106
TP301
TP201
TP203
TP202
C201
C307
R104
X501
L102
L101
L201
L202
47mH
47mH
47mH
47mH
IC303
IC302
TP409
CN302
TP408
S602
TP622
C517
C516
Q201
R521
R520
IC301
1SS380
1SS380
1SS380
CXD9952GR
10P
4.7
0.1
2SD2654
2.2
16
16
1k 10
1k 10 0 0.0047
22k 220p 0
22k 47k
2.7k
33k
10
4.7k
10k
100p
2.2
0.0047
0.1
4.7
47k
2.7k
10
0.01
0.01 22
33k 68k
220p 0
FB406
0
1SS380
10k
47k
33k 68k
220p 0
10 0.01
100p
4.7k
10 10
10 10k
10k
10k
10k
10k
10k
100
10
0.01
1
10k 10k
100
10
10
22k 33k
0 220p
0.1
0.0047 0
22k
0.01
10 10
0.01 220
3p
3p
0
1M
0.01
10
10k
4.7 10
0.047 0.01
2.2
2.2 0.047
10
22k
47k
0.01
4.7
0.047
0.01 0.01
10
100
100
10
0.01
0.01
10
1
0.22
2.2
2.2
0.22
0.22
2.2
2.2
0.22
0.01
100
6.3V
0.01
0.001
0.001
10
0.0047
10
47k
49.152MHz
IC304 TK63714
TK63714
TK63714
20P
10
0.01
2SD2654
0
0
NJM2734SCC
A_PWR 1.5
A_PRI 1.5
A_2.8
D-2.8
RESET
I2C_SCL
I2C_SDA
STANBY
GPIO0
GPIO1
GPIO2
D_CORE 1.5
D_CORE 1.5
MOVIE
MONITOR
AUDIO IN L
AUDIO IN R
AUDIO IN GND
MDD L-P
MDD L-N
MIC L SIG
MIC GND
MDD R-N
MDD R-P
MIC R SIG
VDD
VDD
A-GND
A-GND
D-GND
VDD28ADD
AINMAINL
AINMAINR
VMIDADC
AINSUBL
AINSUBR
TMS
DATAI1
XFSIIN
BCK
VDD28X
VSS28ADD
VSS28ADA
VDD28ADA
TEST1
TRST
RESET_N
DATAI2
VSS28D
VDD28D
XfsoOUT
OSCEN
STANDBY_N
TEST2
TEST3
TCK
TDI
TDO
VSS15D
VDD15D
MCKSEL
I2CADDR
LRCK
X256fsoOUT
GPIO0
DATAO
SCL SDA
GPIO2
GPIO1 GPIO3
GPIO4
VDD15D
VMIDDHP
VDD28PWM
VCONTI VSS28PWM
VREGO
VDD15D VDD15X
VSS15D
VCONTO
VSS28X
XfsoIN VDD15PRI
SHUTDOWN_N
VSS15PRI
PROTMON
AHPINL
AHPINR
LINEINL
VSS28D
VDD28D VDD28LINE
VSS28LINE
LINEINR
LINEOUTL
VDD28AHP
AHPOUTL
VSS15POR
VDD15POR
VDD15POL
VSS15POL OUTNL
OUTPL
OUTPR
OUTNR
VSS28AHP
AHPOUTR
PREOUTL
PREOUTR
LINEOUTR
VMIDHPL
SUB
SUB
ASSY
HEADPHONE
MIC BIAS
LINE AMP,
MIC AMP
+1.4V REGULATOR
+1.4V REGULATOR
REGULATOR +1.4V
CSP
(Chip Size Package)
CSP
(Chip Size Package)
CSP
(Chip Size Package)
CSP
(Chip Size Package)
CSP
(Chip Size Package)
DSP
MIC BIAS
A1
A2
B1
A1
A2
B1
A1
A2
B1
DRY BATTERY
SIZE "AAA"
(IEC DESIGNATION R03)
1PC. 1.5V
MONITOR SOUND MODE
B2
B2
B2
Note 1: CN302, IC301, IC302, IC303, IC304 and IC501 on the MAIN board cannot exchange
with single. When these parts are damaged, exchange the entire mounted board. Note 2: When the MAIN board or headphone assy are replaced, execute the adjustment referring to
“NOISE CANCEL VOLUME ADJUSTMENT” (page 7) on the electrical adjustment.