Sony Cd Player Cdpxe370 Manual

21
CDP-XE270/XE370
IC131 CXA2581N-T4
RW/ROM
RW/ROM EQ ON/OFF
VOFST VOFST DVC
VC
VC
VC RW/ROM
VC DVC
3029
28+
–+
–
DVC
VCC
DVC
27
262524
RW/ROM
EQ
23
22
21
20
19
RFAC
VCA
VCC
+
–
DVC
+
–
+
–
RW/ROM
VC
RW/ROM
DVC
+
–
3
A
B
C
D
B
C
A
AA
B
C
DBCDD
+
–
1
2APC AMP
5
6789
4RFAC
SUMMING
AMP
RW/ROM APC-OFF
(Hi-Z)
RW/ROM
(H/L)
VOFST
VC
RW/ROM
+
–
10
11GM
GM
18
17
16
B
D
A
C
13
14
15
12
EQ INLD
PD
GND
A
B
C
D AC SUM
E
F
DVCC
DVC
RFACSWDC OFST
RFDCI
RFDCO
VC
RFC
VFC
BST
RFG
VCC
CEI
CE
TE BAL
TE
FEI
FE
– MAIN Board...

22
CDP-XE270/XE370
6-8. IC  PIN  FUNCTION  DESCRIPTION
• 
Pin No. Pin Name I/O Description
1SQSOO
Subcode Q data output to the system controller (IC501)
2 SQCK I
Subcode Q data reading clock signal input from the system controller (IC501)
3 XRST I
System reset signal input from the system controller (IC501)    “L”: reset
4 SYSM IAnalog line muting on/off control signal input terminal    “H”: line muting on 
Not used (fixed at  “L”)
5DATAI
Serial data input from the system controller (IC501)
6 XLAT I...

23
CDP-XE270/XE370
Pin No. Pin Name I/O Description
44 ADIO O
Output terminal for the test    Not used (open)
45 AVSS0—
Ground terminal (digital system)
46 IGEN I
Stabilized current input for operational amplifiers
47 AVDD0—
Power supply terminal (+5V) (digital system)
48 ASYO O
EFM full-swing output terminal
49 ASYI I
Asymmetry comparator voltage input terminal
50 BIAS I
Asymmetry circuit constant current input terminal
51 RFAC I
EFM signal input from the CXA2581N (IC131)
52 AVSS3—
Ground terminal...

24
CDP-XE270/XE370
•
Pin No. Pin Name I/O Description
1
NC I Connected to the ground
2 RMIN I Remote control signal input from the remote control receiver (IC561)
3
NC I Connected to the ground
4 to 6
NC O Not used (open)
7
LDON/RW/OFF O CD-ROM/RW selection signal output    “L”: CD-ROM, “H”: CD-RW
8 CLK O Serial data transfer clock signal output to the CXD2587Q (IC101)
9 SENS I Internal status (SENSE) signal input from the CXD2587Q (IC101)
10 DATA O Serial data output to the CXD2587Q (IC101)
11 SQCK O...

25
CDP-XE270/XE370
Pin No. Pin Name I/O Description
73 NC—Connected to the +5V power supply
74 to 77 NC O Not used (open)
78 SCOR I Subcode sync (S0+S1) detection signal input from the CXD2587Q (IC101)
79, 80
NC I Connected to the ground 

26
CDP-XE270/XE370
7-1. CASE  SECTION
SECTION  7
EXPLODED  VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
• Accessories and packing materials are given
in the last of the electrical parts list. NOTE:
• -XX and -X mean...

27
CDP-XE270/XE370
7-2. FRONT  PANEL  SECTION
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
51 X-4953-458-1 PANEL ASSY, FRONT
 (XE370: AEP, UK, SP, AUS)
51 X-4953-459-1 PANEL ASSY, FRONT
 (XE270: AEP, UK, SP, AUS) (BLACK)
51 X-4953-460-1 PANEL ASSY, FRONT
(XE270: AEP, UK) (SILVER)
51 X-4953-553-1 PANEL ASSY, FRONT (XE370: US)
51 X-4953-554-1 PANEL ASSY, FRONT (XE270: US, CND)
52 4-231-928-01 KNOB (AMS) (BLACK)52 4-231-928-11 KNOB (AMS) (SILVER)
53 4-231-973-01 BUTTON (POWER) (BLACK)...

28
CDP-XE270/XE370
7-3. CD  MECHANISM  DECK  SECTION
(CDM66-5BD27)
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
501 4-231-530-01 TRAY (66)
502 4-232-682-01 CUSHION (66)
503 4-232-712-01 CAM (66)
504 4-232-710-01 PULLEY (LD)
505 4-232-713-01 BELT (LD)
506 4-232-711-01 GEAR (LD)
507 4-993-142-21 PULLEY (L), PRESS
508 1-452-925-21 MAGNET ASSY509 4-231-529-01 CHASSIS (66)
510 4-227-899-01 SCREW (DIA. 12), FROATING
511 A-4604-363-A MOTOR (L) ASSY
513 1-645-721-11 LOADING BOARD
514...

29
CDP-XE270/XE370
7-4. BASE  UNIT  SECTION
(BU-5BU27)
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
552 A-4725-568-A BD BOARD, COMPLETE
553 4-951-940-01 INSULATOR (BU)
554 4-917-565-01 SHAFT, SLED
0555 1-796-033-11 OPTICAL PICK-UP/PXR-104X
556 1-782-817-11 WIRE (FLAT TYPE) (16 CORE)557 3-713-786-51 SCREW +P 2X3
558 4-917-567-01 GEAR (M)
559 4-917-564-01 GEAR (P), FLATNESS
M101 X-4917-523-3 MOTOR ASSY (SPINDLE)
M102 X-4917-504-1 MOTOR ASSY (SLED)
556
555
557
558
553
559
551
552
553...

30
CDP-XE270/XE370
SECTION  8
ELECTRICAL  PARTS  LIST
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
BD
A-4725-568-A BD BOARD, COMPLETE
*******************
< CAPACITOR >
C101 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C102 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C103 1-164-315-11 CERAMIC CHIP 470PF 5% 50V
C110 1-126-206-11 ELECT CHIP 100uF 20% 6.3V
C111 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C112 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C120 1-164-156-11 CERAMIC CHIP 0.1uF 25V
C121 1-162-970-11...