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Sony D-EQ550 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2002.02
TE
L 13942296513
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
+1
20 - 20 000 Hz
dB (measured by JEITA CP-307)
–5
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx. 10 mW + approx. 10 mW at 16 Ω
(Approx. 1 mW + approx. 1 mW at 16 Ω *)
* For the customers in France
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):
US, CND models: 120 V, 60 Hz
AEP, FR, EE, E models: 220 – 230 V, 50/60 Hz
www
.
Sony Corporation
9-873-599-01
2002B0500-1
Personal Audio Company
C 2002.02
Published by Sony Engineering Corporation
http://www.xiaoyu163.com
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u163
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http://www.xiaoyu163.com
D-EQ550
2 9
8
Model Name Using Similar Mechanism
MD Mechanism Type
Optical Pick-up Mechanism Type
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
Dimensions (w/h/d) (without projecting parts and controls)
Approx. 130.6 × 29.8 × 150.5 mm
× 1
× 6 in.)
(5
1
3
4
16
Mass (excluding accessories)
Approx. 210 g (7.5 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.
Headphones (1)
Lid cover (1)
Headphones caps (1 pair)
Design and specifications are subject to change without notice.
• Abbreviation
CND : Canadian model
EE
: East European model
FR
: French model
co
.
9 4
2 8
US Model
Canadian Model
AEP Model
E Model
D-E350
CDM-3125ER
DAX-25E
0 5
8
2 9
9 4
2 8
m
PORTABLE CD PLAYER
9 9
9 9

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  Summary of Contents for Sony D-EQ550

  • Page 1 7 mm aperture.) For the area code of the model you purchased, check the upper left Error correction side of the bar code on the package. Sony Super Strategy Cross Interleave Reed Headphones (1) Solomon Code Lid cover (1)
  • Page 2: Table Of Contents

    LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. http://www.xiaoyu163.com...
  • Page 3: Servicing Notes

    D-EQ550 SECTION 1 SERVICING NOTES 3 7 63 1515 0 Laser Diode Checking Methods NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR During normal operation of the equipment, emission of the laser diode BASE UNIT is prohibited unless the upper panel is closed while turning ON the S801 (push switch type).
  • Page 4: Disassembly

    D-EQ550 SECTION 3 DISASSEMBLY 3 7 63 1515 0 • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW 3-2. CABINET (LOWER), MD ASSY (Page 4) 3-3. MAIN BOARD 3-4. TURN TABLE MOTOR 3-5. OPTICAL PICK-UP...
  • Page 5: Main Board

    D-EQ550 3 7 63 1515 0 3-3. MAIN BOARD main board cabinet (lower) L 13942296513 3-4. TURN TABLE MOTOR ASSY (SPINDLE) (M901) 1 three screws (B1.7 × 5) turn table motor assy (spindle) (M901) u163 Chassis http://www.xiaoyu163.com...
  • Page 6: Optical Pick-Up (Dax-25E)

    D-EQ550 3 7 63 1515 0 3-5. OPTICAL PICK-UP (DAX-25E) 1 screw (B 1.7 × 5) gear cover gear B feed screw assy motor assy (sled) (M902) 4 screw (P 1.4 × 3.5) bracket (Shaft) optical pick-up (DAX-25E) chassis...
  • Page 7: Electrical Adjustments

    D-EQ550 SECTION 4 ELECTRICAL ADJUSTMENTS 3 7 6 3 1 5 1 5 0 Focus bias Check The CD section adjustments are done automatically in this set. Condition: Precautions for Check • Hold the set in horizontal state. 1. Perform check in the order given.
  • Page 8: Diagrams

    D-EQ550 SECTION 5 DIAGRAMS 3 7 6 3 1 5 1 5 0 5-1. BLOCK DIAGRAM IC603 RAM(4M) D0-3 A0-10 1,2,24,25 5,9-12,14-18 23 3 IC601 OPTICAL RF AMP,DIGITAL SERVO PICK-UP IC302 DIGITAL SIGNAL PROCESSOR BLOCK HEADPHONE AMP 90 83 89...
  • Page 9: Note For Printed Wiring Board And Schematic Diagrams

    D-EQ550 3 7 6 3 1 5 1 5 0 5-2. NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAMS Note on Printed Wiring Board: Note on Schematic Diagrams: • Waveforms • All capacitors are in µF unless otherwise noted. pF: µµF •...
  • Page 10: Printed Wiring Board

    D-EQ550 3 7 6 3 1 5 1 5 0 5-3. PRINTED WIRING BOARD • Semiconductor Location Ref. No. Location MAIN BOARD (SIDE B) J301 D101 D201 D305 MAIN BOARD D401 (SIDE A) D402 D403 D404 D405 D408 D801...
  • Page 11: Schematic Diagram - Main Section (1/3)

    D-EQ550 3 7 6 3 1 5 1 5 0 5-4. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) – • • Refer to page 9 for Waveforms. Refer to page 15 for IC Block Diagrams. 1 3 9 4 2 2 9 6 5 1 3...
  • Page 12: Schematic Diagram - Main Section (2/3)

    D-EQ550 3 7 6 3 1 5 1 5 0 5-5. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) – • Refer to page 9 for Waveforms. 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 13: Schematic Diagram - Main Section (3/3)

    D-EQ550 3 7 6 3 1 5 1 5 0 5-6. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) – • Refer to page 9 for Waveforms. 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...
  • Page 14: Ic Pin Function Description

    D-EQ550 3 7 6 3 1 5 1 5 0 5-7. IC PIN FUNCTION DESCRIPTION IC801 (SYSTEM CONTROL) T5AW5-Z5-M1 Pin No. Pin name Description Pin No. Pin name Description – Ground terminal. XWAKEUP_O Wale-up signal output. System clock input.
  • Page 15 D-EQ550 3 7 63 1515 0 • IC Block Diagrams IC601 BU9355KV 99 98 97 96 95 94 93 92 91 90 88 87 86 85 84 83 82 81 80 79 78 77 76 AVDD1 VMON 75 FDOP...
  • Page 16: Exploded Views

    D-EQ550 SECTION 6 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • Items marked “*” are not stocked since they • -XX and -X mean standardized parts, so they The components identified by 0 or dotted line with mark...
  • Page 17: Optical Pick-Up Section (Cdm-3125Er)

    D-EQ550 3 7 63 1515 0 6-2. OPTICAL PICK-UP SECTION (CDM-3125ER) M901 L 13942296513 M902 The components identified by 0 or dotted line with mark mark 0 are critical for safety. Replace only with part number specified. Les composants identifiés par une marque 0 sont critiquens pour la sécurité.
  • Page 18: Electrical Parts List

    D-EQ550 SECTION 7 MAIN 3 7 63 1515 0 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • SEMICONDUCTORS The components identified by In each case, u: µ, for example: 0 or dotted line with mark...
  • Page 19 D-EQ550 3 7 63 1515 0 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C818 1-162-968-11 CERAMIC CHIP 0.0047uF 10% Q403 6-550-070-01 TRANSISTOR 2SB1237TV2PQR Q405 8-729-231-74 TRANSISTOR 2SC4116GL-TE85L < CONNECTOR > Q601 8-729-054-79 TRANSISTOR...
  • Page 20 D-EQ550 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R806 1-216-845-11 METAL CHIP 100K 1/10W 3-239-051-21 MANUAL, INSTRUCTION (ENGLISH) (E) R809 1-218-871-11 METAL CHIP 0.5% 1/10W 3-239-051-31 MANUAL, INSTRUCTION (SPANISH) (E)
  • Page 21 D-EQ550 3 7 63 1515 0 MEMO L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 22 D-EQ550 3 7 63 1515 0 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.