Sony D-E330 - Portable Cd Player User manual

D-E330/E331
SERVICE MANUAL
PORTABLE CD PLAYER
SPECIFICATIONS
Photo : D-E331
Model Name Using Similar Mechanism D-E350
CD Mechanism Type CDM-3125ER
Optical Pick-up Type DAX-25E
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wavelength:λ =780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW (This output is the value measured
at a distance of 200 mm from the objective lens surface on the optical
pick-up block with 7 mm aperture. )
Error correction
Sony Super Strategy Cross Interleave Reed
Solomon Code
D-A conversion
1-bit quartz time-axis control
Frequency response
20 - 20 000 Hz +1
–5 dB (measured by JEITACP-307)
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx. 1 mW + approx. 1 mW at 16 Ω
Power requirements
For the area code of the model you purchased, check the upper left
side of the bar code on the package.
• Two LR6 (size AA) batteries: 3 V DC
•AC power adaptor (DC IN 4.5 V jack):
220 - 230 V, 50/60 Hz
Ver 1.0 2002.02
AEP Model
9-873-591-01
2002B0200-1
© 2002.02
Sony Corporation
Personal Audio Company
Pubulished by Sony Engineering Corporation
Dimensions (w/h/d) (without projecting parts and controls)
Approx. 130.6 ×26.3 ×150.5 mm
(5 1
⁄4×11
⁄16 ×6 in.)
Mass (excluding accessories)
Approx. 190 g (6.8 oz)
Operating temperature
5°C - 35°C (41°F - 95°F)
Supplied accessories
For the area code of the model you purchased, check the upper left
side of the bar code on the package.
D-E330
Headphones/earphones (1)
D-E331
AC power adaptor (1)
Headphones/earphones (1)
Design and specifications are subject to change without notice.

2
Specifications ............................................................................ 1
1. SERVICING NOTES ................................................... 3
2. GENERAL
Locating the Controls......................................................... 3
3. DISASSEMBLY
3-1. Cabinet (Lower), MD ASSY ...................................... 4
3-2. Main Board ................................................................. 4
3-3. “Motor ASSY, Turn Table (Spindle) (M901)”............ 5
3-4. “Motor ASSY (Spindle) (M902)”,
Optical Pick-up (DAX-25E) ...................................... 5
4. ELECTRICAL ADJUSTMENS ............................... 6
5. DIAGRAMS
5-1. Explanation of IC Terminals....................................... 7
5-2. Block Diagram............................................................ 9
5-3. Printed Wiring Boards .............................................. 10
5-4. Schematic Diagram –MAIN SECTION (1/3)– ........11
5-5. Schematic Diagram –MAIN SECTION (2/3)– ....... 12
5-6. Schematic Diagram –MAIN SECTION (3/3)– ....... 13
6. EXPLODED VIEWS
6-1. Cabinet Section......................................................... 16
6-2. Optical pick-up Section (CDM-3125ER) ................. 17
7. ELECTRICAL PARTS LIST................................... 18
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE
PARTS LIST ARE CRITICALTO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN INTHIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270°C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering or
unsoldering.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
TABLE OF CONTENTS
This Compact Disc player is
classified as a CLASS 1 LASER
product.
The CLASS 1 LASER
PRODUCT label is located on
the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures other
than those specified herein may result in hazardous radiation
exposure.
Laser component in this product is capable of emitting
radiation exceeding the limit for Class 1.
DANGER
Invisible laser radiation when open and interlock failed or defeated.
Avoid direct exposure to beam.
D-E330/E331

3
D-E330/E331
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the charged
electrostatic load, etc. on clothing and the human body. During repair,
pay attention to electrostatic breakdown and also use the procedure in
the printed matter which is included in the repair parts.
The flexible board is easily damaged and should be handled with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on the
disc reflective surface by the objective lens in the optical pick-up block.
Therefore, when checking the laser diode emission, observe from more
than 30cm away from the objective lens.
Before Replacing the Optical pick-up Block
Please be sure to check thoroughly the parameters as per the “Optical
pick-up Block Checking Procedure” (Part No. : 9-960-027-11) issued
separately before replacing the optical Pick-up block.
Note and specifications required to check are given below.
• FOK output : IC601 yg pin
When checking FOK, remove the lead wire to disc motor.
• RF signal P-to-P value : 0.45 to 0.65Vp-p
SECTION 1
SERVICING NOTES
Laser Diode Checking Methods
During normal operation of the equipment, emission of the laser diode
is prohibited unless the upper panel is closed while turning ON the S801
(push switch type).
The following two checking methods for the laser diode are operable.
Method :
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the S801 as shown in Fig. 1 .
3. Check the object lens for confirming normal emission of the laser
diode. If not emitting, there is a trouble in the automatic power
control circuit or the optical pick-up. During normal operation, the
laser diode is turned ON about 2.5 seconds for focus searching.
NOTES ON HANDLINGTHE OPTICAL PICK-UP BLOCK OR
BASE UNIT
Fig.1 Method to push S801
SECTION 2
GENERAL
LOCATINGTHE CONTROLS
This section is extracted from
instruction manual.
S801
HOLD .
i
VOL–VOL+SOUND
ESP
OPEN
DISPLAY
DC IN 4.5V
.
x
>B
MENU

4
D-E330/E331
Cabinet (lower),
MD ASSY
Main board
“Motor ASSY, turn table (Spindle) (M901)”,
Optical pick-up (DAX-25E), “Motor ASSY (Sled) (M902)”
Set
SECTION 3
DISASSEMBLY
Note : Follow the disassembly procedure in the numerical order given.
3-1. CABINET (LOWER), MD ASSY
3-2. MAIN BOARD
zThe equipment can be removed using the following procedure.
2Three screws (B2 x 10)
1OPEN
7CN501
8CN503 (white)
9CN502 (black)
5Claws
5Claws
3Open the battery lid
5Claw
5Claw
4Two screws (B2 x 10)
Cabinet (lower)
Cabinet (front)
MD ASSY
6
q;
Lid upper
Main board
Cabinet (lower)
1

5
D-E330/E331
3-3.“MOTOR ASSY,TURNTABLE
(SPINDLE) (M901)”
3-4.“MOTOR ASSY (SLED) (M902)”,
OPTICAL PICK-UP (DAX-25E)
3
5
6
2
1Screw (B 1.7x5)
4Screw
(P 1.4x3.5)
Screw ASSY, Feed
Chassis
Optical pick-u
p
(DAX-25E)
Bracket (Shaft)
Gear B
Cover, Gear
Motor ASSY (Sled) (M902)
2
Motor ASSY, Turn tabl
e
(Spindle) (M901)
1Three screws (B1.7x5)
Chassis

6
D-E330/E331 SECTION 4
ELECTRICAL ADJUSTMENTS
The CD section adjustments are done automatically in this set.
Precautions for Check
1. Perform check in the order given.
2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise
indicated.
3. Power supply voltage requirement : DC4.5 V in DC IN jack.
(J401)
VOLUME button : Minimum
HOLD switch : OFF
Focus bias Check
Condition:
• Hold the set in horizontal state.
Connection:
Procedure:
1. Connect the oscilloscope to the test points TJ503(RFI) and TJ610
(VBIAS) on the MAIN board.
2. Set a disc. (YEDS-18)
3. Press the >B button.
4. Check the oscilloscope waveform is as shown below.
A good eye pattern means that the diamond shape (◊) in the cen-
ter of the waveform can be clearly distinguished.
RF Signal referenceWaveform (Eye Pattern)
To watch the eye pattern, set the oscilloscope to AC range and
increase the vertical sensitivity of the oscilloscope for easy
watch-ing.
5. Stop revolving of the disc motor by pressing the x button.
[MAIN BOARD] (SIDE B)
S801
(OPEN/CLO
S
C301
C619
C802
IC603
TP814
C106
R620
TAP806
C634
TJ502
R631
TJ608
TP817
TP609
TP616
R82
4
0
TP503
TJ303
C306
R209
C1
0
TJ603
C203
TP507
TJ610
R205
TP603
TJ604
D801 TAP803
TJ405
TJ601
TJ602
TJ607
TAP805
TJ501
Q601
TJ503
TAP601
TP621
IC302
R109
C206
C610
R605
R107
D805
R617
R613
R614
R615
L601
HPLOUT
AVDD
AGND
LD
RFI
AVDD
LASER
MON1
MON2
CLK4M
FOK
RF1
SCOR
XBUSY
C2POEN
PD
VBIAS
OPSTB
RFGO
.
4V
TJ610 (VBIAS)
TJ503(RFI)
oscilloscope
(AC range)
RF level
0.45 to 0.65 Vp-
p
VOLT/DIV : 100 mV (With the 10 : 1 probe in use)
TIME/DIV : 500ns

7
D-E330/E331
Pin No. Pin name I/O Description
SECTION 5
DIAGRAMS
5-1. EXPLANATION OF IC TERMINALS
IC801 (SYSTEM CONTROL)T5AW5-Z5-M1
1 GND – Ground terminal.
2 XIN I System clock input.
3 XOUT O Not used (OPEN).
4 TEST I Test mode terminal (FiXed to “L”).
5 VCPU – Power supply for CPU & I/O.
6 FOK_I I Focus OK signal input.
7 XBUSY_I I DSP’s auto sequencer status.
8 XRESET_I I/O Micon reset terminal.
9 XSTOP_I I Not used (FiXed to “L”).
10 DFCT CTRL O Not used (OPEN).
11 SCOR_I I SCOR pulse input.
12 HPSW_O O Headphone IC power switch.
13 DEFECT O DEFECT signal output (Not used).
14 XPOWLT_O O Power IC’s serial interface latch output.
15 R/XW_O O DSP’s serial interface Read/Write signal output.
16 MSDTI I Serial interface input.
17 MSDTO O Serial interface output.
18 SCK_O O Serial interface clock output.
19 AVCPU – Power supply for CPU and I/O.
20 VREFH – Analog reference voltage forA/D converter.
21 AD_SEL I Test mode detection input
22 AD_CHGMNT I Charging monitor input.
23 AD_KEY2 I Key input.
24 AD_BATMNT I Battery voltage monitor input.
25 AD_KEY I Set’s key detection input.
26 AD_RMKEY I Not used (OPEN).
27 AD_DCINMNT I DC voltage monitoring input.
28 XOPEN_I I OPEN switch status detection input.
29 P50 O Not used (OPEN).
30 BEEP_O O BEEP sound
31 TSB O Not used (OPEN).
32 VDD_EEPROM – Power supply for EEPROM (OPEN).
33 P44 O Not used (OPEN).
34 XNONCHG_I I Charging feature detection
35 P42 O Not used (OPEN).
36 FRANCE_I I France version detection input.
37 X4M/16M_I I DRAM size selection terminal (OPEN).
38 CMPON_I I ESP switch status detection input.
39 XTSB/PANA-HP O Not used (fixed at “L”) (OPEN).
40 HOLD_I I HOLD switch status detection input.
41 SEG15 O Not used (OPEN).
42-55 SEG1-14 O LCD segment output.
56 SEG0 O Not used (OPEN).
57-60 COM0-3 O LCD common output.
61-63 V1-3 – LCD driver booster.
64 C1 – LCD driver booster.
65 C0 – LCD driver booster.

8
D-E330/E331
Pin No. Pin name I/O Description
66 XWAKEUP_O O Wale-up signal output.
67 PGM STD0 – Not used (OPEN).
68 PGMSI_I – Not used (OPEN).
69 PGMSCK_O – Not used (OPEN).
70 P13 O Not used (OPEN).
71 GFS_I I Guard Frame Synchronous signal input.
72 ESPLT_O O ESP’s serial interface latch output.
73 PGMSEL_O – Not used (OPEN).
74 AMUTE_O O Mute ON/OFF control output.
75 VCC2ON_O O Not used (OPEN).
76 XRST_O O System reset output.
77 XPOFF_O O DSP’s power off output.
78 OPSTBY_O O Pick-up’s power supply ON/OFF control.
79 OPG4[_O O RF IC’s gain control.
80 C2POEN_O O C2PO enable.

99
D-E330/E331
5-2. BLOCK DIAGRAMS
88,87,85,84
4
1,2,24,25 5,9-12,14-18 23 3
90 83 89
22
52
51
CH3
H
BRIDGE
CH2
H
BRIDGE
CH1
H
BRIDGE
LEVEL
SHIFTER 49
50
33
35 24
46
27
55
E
OPTICAL
PICK-UP
BLOCK
(DAX-25E)
F
OPGSW
LD
PD
F+
F-
T+
T-
S+
S-
C+
C-
OPSTB
A
RF
OP IC
A
RF
FO1
RO2
FO2
RO3
FO3
RO1
FO4
RO4
36 VM12
40 VM2
41 VM3
26 VM34
FOCUS
COIL
TRACKING
COIL
M
M902
SLED
MOTOR
M901
SPINDLE
MOTOR M
F3 FIN+
FIN-
CPOL
CDUTY
R3
FR4
PWM4
31
32
LEVEL
SHIFTER
I/F
29
F2 TIN+
TIN-
SIN+
SIN-
FIN+
FIN-
CPOL
CDUTY
TIN+
TIN-
SIN+
SIN-
R2
FI
30
RI
28
27
26
25
LATCH
DATA
CLOCK
WAKEUP
FI1
23
RESET
XRST_O
SCOR_I
POFF_O
XBUSY_I
DEFECT_I
FOK_I
ESPLT_O
AD_BATMNT
BEEP_O
AMUTE_O
XIN_I
IC603 RAM(4M)
D0-3 A0-10
D0-D3
88,87,85,84
AO-A10
AD_CHG MNT
WP/AD,DSINMNT
BATN2
IC801
SYSTEM
CONTROL
MICON
XRAS XCAS XWE
XRAS
XCAS
XWE
42 - 55 57 - 60 28
SEG1
I
SEG14
COM0
I
COM3
LIQUID
CRYSTAL
DISPLAY
LCD801
WP/XOPEN
40
HOLD_I
38
CMPON_I
5
VCPU
25
WP/AD_KEY_1
23
AD-KEY_2
11 777 13 72 24
44
16
1415
6
SCGFS_I
7176
75 74 72 73 77 76 79 78 38 37 40 44 43 45 52 64 65 68 70 571
7430
2
13
14
15
7201917
31
29
8
6
4
9
8
6
7
2
15 R/XW_O
X POWLT_O
14
(SENS)MSDTI_I
16
MSDTO.O
17
SCK_O
18
XWAKEUP_O
66
XRESET_I
VBATT
49
OPG_O
79
XOPSTBY_O
78
HPSW_O
12
47 48 49 50
RF
AMP
APC
SERVO CORE
PWM CLOCK
OSC
SIO
WINDOW
ECC ESP
OUT IN
IC403
+2V REG.
3
15 10
6
13
54
2 62
15 OUT IN
IC402
+2V REG.
52 OUT IN
IC405
RESET
54 OUT IN
1
CTRL
IC404
+5V REG.
DC IN 4.5V
!
J401
Q401
L401
REGBDC IN
D404
Q403
D402
D801
VBATT
SWITCGING
REG.
SWITCGING
REG.
4
DRY BATTERY
SIZE" AA"
(IEC DESIGNATION LR6)
2PCS,3V
0R
RECHARGEABLE BATTERY
NC-WMAA/NH-WM2AA
2.4V
S801
DOOR
OPEN ON OFF
S807
x
S806
.
S811
MENU
S809
VOL+
> N SOUND VOL-
S808
S805 S810
S803
ESP
ON OFF
DEFFERNTIAL
Q402
44
37
39
RF
A
B
E
F
LD
PD
3
VBATT
IC401(1/2)
FOCUS/TRACKING COIL DRIVE
SLED/SPINDLE MOTOR DRIVE
IC601
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR IC302
HEADPHONE AMP
IC401(2/2)
SWITCHING REGURATOR
48
42
CH4
H
BRIDGE
DAC
LOUT
LIN
RIN
BEEP MUTE PWRSW
LDACO
RDACO ROUT
VREF
VBATT
LD
DRIVER
Q601
FDOP FDON CLVON CLVOP TDOP TDON SDOP SDON CLKDRV XOUT XIN
XRST SBSY XPWMN XBUSY FOK DEFECT YMLD GFS VCHK
X4M/8M CLK4M SCOK SRW SDIN SDOUT
VBATT
AVDD+2V
VCC+2.2V
VCPU+2V
+3V
VCC1-OUT
VCC1-IN
STNG
VMMNT
VCPU
CHGMNT
Q405
GATE
VCPU+2V
AVDD+2V
VCC0
VIN
: CD PLAY
J301
i
X171
90MHz
53
S802
HOLD .
• Signal path