Schematic Diagram -Main Section (3/9) - Sony Walkman MZ-MH900 Service Manual

6-6. SCHEMATIC DIAGRAM – MAIN Section (3/9) –
CN501
26P
TRK+
FCS-
FCS+
TRK-
L1
L2
CONT
PLSE_XDC
PVCC
IIN
LDK
MDVCC
GND
F
VREF
VCC
S1
JY
JX
IY
IX
A
B
C
D
S0
MZ-NH900
• See page 26 for Waveforms. • See page 38 for IC Block Diagrams.
(3/9)
+3V REGULATOR
IC502
C561
R1180Q301B
1
VOUT GND
VDD CE
R561
220k
L501
0
R507 C568
2.2k 0.01
LC_DRV2
LC_DRV1
R508 C569
2.2k 0.01
TRK+
R503 R504
100k 100k
FCS-
S
FCS+
-2
TRK-
-1
R521
0
S
Q501
MCH6604
SWITCHING
FB501 XLDON
R522
0
PLSE_XDC
FB502
0
C570
C573
4.7
1000p
6.3V
L507
10µH
S1
S0
R501 R502
2.2k 1k
FB503
0
1000p
(Page 27)
C523 C524
0.1 0.01
C519
0.1
C562
1
NPPO
AVCC2
OFTRK
C513
OFTRK
0.01
TON_C
BOTM
BOTM
PEAK
PEAK
D FOCUS/TRACKING ERROR AMP
A
B
C CSP(Chip Size Package)
AVCC
JX
JY
IY
C525
4700p
C527
L505
Q502 10µH
2SA2018TL R514
47k
Q502,503 R513 R515
10k 10k
B+ SWITCH
Q503
C558
2SC4738F-Y/GR
(TPL3)
C564
R516 C560
4.7
47k 0.1
6.3V
29 29
C553
C554
4.7
0.1
6.3V
C530
1
R505
10
C536
0.022
CN
CPGND
CLK
CCSL2
CDN
ADFG
RF AMP,
VPP_LPF
IC501
SMON
SN761059ZQLR
PD_BUF
∗
PD_NI
PD_I C538
1000p
PDO_SOURCE
PDO_SINK
A_C
C531 C533
0.01 0.01
C518
C529
4.7
0.1 0.1
6.3V
C556
C557
4.7
0.1
6.3V
R517
10k
C559 R512
4700p 0
R524
220
Q504
2SC4627J-C
R509 C555 R520
(TX).SO
0 4700p 470
RF BUFFER
C565 R511
C567
R518 R519 0.1 0 C526 C566
4.7
47k 1k 100p 0.1
6.3V
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
MZ-NH900
C3
C1
C2
(Page 28)
S0
S0
S1
L503
S1
10µH
XLDON
XLDON
PLSE_XDC
PLSE_XDC
LC_DRV1
LC_DRV1
LC_DRV2
LC_DRV2
PEAK
PEAK
BOTM
BOTM
OFTRK
OFTRK
TE
TE
FE
FE
ABCD
ABCD
VREF
VREF
A_FS256 XRST_RF
XRST_RF
C545 0.1 SSB_DATA
(Page 34)
SSB_DATA
C547 0.047 SSB_CLK
SSB_CLK
ADIP ADIP
ADIP
C550 0.047 S_MON
S_MON
S_MON APCREF_DA
APCREF_DA
C552 0.01 VC
VC
APCREF_DA RFI
RFI
MDVCC_CTL
MDVCC_CTL
A_FS256
A_FS256
VIN
VIN
REG03
VC
L502
10µH
C520
0.1
L504
10µH
MDVCC_CTL
L506
10µH
RFI
VIN
I1
I2
(Page 31)
Les composants identifiés par une marque 0 sont
critiques pour la sécurité. Ne les remplacer que
par une pièce portant le numéro spécifié.