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Sony D-CS901 Service Manual
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Sony D-CS901 Service Manual

Sony D-CS901 Service Manual

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SERVICE MANUAL
Ver 1.0 2002. 06
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.)
D-A conversion
1-bit quartz time-axis control
Frequency response
0
20 - 20 000 Hz
dB (measured by JEITA CP-
–4.5
307)
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx. 5 mW + Approx. 5 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.
• Sony NH-WM2AA rechargeable batteries:
2.4 V DC
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
U2/CA2 model: 120 V, 60 Hz
CED model: 220 - 230 V, 50/60 Hz
CEK model: 230 - 240 V, 50 Hz
Sony Corporation
9-874-052-01
2002F1600-1
Personal Audio Company
© 2002.06
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism D-SJ301
CD Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Battery life* (approx. hours)
(When you use the CD player on a flat and stable
surface.)
Playing time varies depending on how the CD
player is used.
Figures in brackets show the playing time of
MP3 files.
When using
G-PROTECTION function
"1"
NH-WM2AA
22
(charged for
[16]
about 5 hours**)
Two Sony alkaline
37
batteries LR6 (SG)
[24]
(produced in Japan)
* Measured value by the standard of JEITA (Japan
Electronics and Information Technology
Industries Association).
** Charging time varies depending on how the
rechargeable battery is used.
Operating temperature
5°C - 35°C (41°F - 95°F)
Dimensions (w/h/d) (including
projecting parts and controls)
Approx. 134.1 × 38.5 × 147.8 mm
× 1
× 5
1
1
7
(5
⁄
⁄
⁄
in.)
4
2
8
Mass (excluding accessories)
Approx. 321 g (11.4 oz.)
D-CS901
Canadian Model
Supplied accessories
For the area code of the location in which you
purchased the CD player, check the upper left side
of the bar code on the package.
AC power adaptor (1)
Headphones/earphones (1)
Hand strap (1)
"2"
Design and specifications are subject to change
23
without notice.
[16]
• Abbreviation
38
U2
: US model
[24]
CA2
: Canadian model
CED
: AEP model
CEK
: UK model
PORTABLE CD PLAYER
US Model
AEP Model
UK Model
CDM-3125ER
DAX-25E

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Summary of Contents for Sony D-CS901

  • Page 1 Operating temperature purchased, check the upper left side of the 5°C - 35°C (41°F - 95°F) bar code on the package. • Sony NH-WM2AA rechargeable batteries: Dimensions (w/h/d) (including 2.4 V DC projecting parts and controls) • Two LR6 (size AA) batteries: 3 V DC Approx.

  • Page 2: Table Of Contents

    CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU PUBLISHED BY SONY.

  • Page 3: Servicing Note

    D-CS901 SECTION 1 SERVICING NOTE BEFORE REPLACING THE OPTICAL PICK-UP BLOCK NOTES ON HANDLING THE OPTICAL PICK-UP Please be sure to check thoroughly the parameters as par the “Optical BLOCK OR BASE UNIT Pick-Up Block Checking Procedures” (Part No.: 9-960-027-11) issued separately before replacing the optical pick-up block.

  • Page 4: General

    D-CS901 SECTION 2 GENERAL This section is extracted from instruction manual. Locating the controls For details, see pages in parentheses. CD player (front) 1 HOLD switch 6 FOLDER –/+ buttons (page 19) (pages 9, 14) 7 PLAY MODE 2 3-way control key...

  • Page 5: Disassembly

    D-CS901 SECTION 3 DISASSEMBLY Note : This set can be disassembled in the order shown below. LID UPPER, CABINET (FRONT) MOTOR ASSY, TURN TABLE (SPINDLE)(M901) MD ASSY (CDM-3125ER), MAIN BOARD MOTOR ASSY (SLED)(M902), OPTICAL PICK-UP (DAX-25E) MAIN (SWITCH UNIT) BOARD, HOLD LEVER Note : Follow the disassembly procedure in the numerical order given.

  • Page 6: Md Assy (Cdm-3125Er), Main Board

    D-CS901 3-2. MD Assy (CDM-3125ER), MAIN Board 5 MD ASSY (CDM-3125ER) 1 flexible cable (15P) 3 connector (CN502)(white) 2 connector (CN503)(black) 7 MAIN board RV801 lever(vol)(B) cabinet (lower) sub ASSY 3-3. Motor Assy, Turn Table (Spindle) (M901) 1 three screws (B1.7x5)

  • Page 7: Motor Assy (Sled) (M902)

    D-CS901 3-4. Motor Assy (Sled) (M902), Optical Pick-up (DAX-25E) 1 screw (B 1.7x5) 3 cover, gear gear B 9 screw assy, feed 5 motor assy (sled) (M902) 6 screw (P 1.4x3.5) 7 bracket (Shaft) qa optical pick-up (DAX-25E) chassis 3-5. MAIN (SWITCH UNIT) Board, Hold Lever 1 six screws (B1.7 ×...

  • Page 8: Test Mode

    D-CS901 SECTION 4 TEST MODE The following confirmation can be performed when the Test Mode • FOLDER + / FOLDER – button is set. Motion of the optical pick-up (to outside or inside) 4-1. How to set the Test Mode.
  • Page 9 D-CS901 • PLAY MODE button 5) C1 error rate display mode is active by pressing the DISPLAY Display spindle speed button. Every pressing the button changes spindle speed 1 to speed 4 . The LCD displays the following message. Tracking/Sled servo on...
  • Page 10 D-CS901 –MAIN BOARD (SIDE A) – –MAIN BOARD (SIDE B) – IC602 IC804 TAP1 (TEST) IC601 IC405 IC801 IC803 CN901 TAP3 (TEST) IC701 IC703 IC403 IC402 IC404 Button Pressed Display See "Figure 01" See "Figure 02" PLAY MODE See "Figure 03"...

  • Page 11: Electrical Adjustments

    D-CS901 SECTION 5 ELECTRICAL ADJUSTMENTS The CD section adjustments are done automatically in this set. Checking Location: In case of operation check, confirm that RF level. –MAIN BOARD (SIDE B) – Precautions for Check Perform check in the order given.

  • Page 12: Diagrams

    D-CS901 SECTION 6 DIAGRAMS Note For Printed Wiring Boards And Schematic Diagrams Note on Printed Wiring Board Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or • X : parts extracted from the component side.

  • Page 13: Block Diagrams

    D-CS901 6-1. Block Diagrams – MAIN Section 1 – IC601 RF AMP, DIGITAL SIGNAL PROCESSOR, IC301 DIGITAL SERVO PROCESSOR, HEADPHONE AMP D-RAM CONTROLLER DETECTOR R-CH J301 LOUT WDCK AOUT1 AOUT2 R-CH R-CH RFDC MUTE MUTE_O MT SW BEEP RFAC XTAO...
  • Page 14 D-CS901 – MAIN Section 2 – LCD DRIVER D0 - D7 56-63 79-86 DB0-7 D410 L414 IC404 Q401,402 3.0V LCD1 VCPU_2.0V SEG0-60 72-12 B+ SWITCH LIQUID E(RD) CRYSTAL R/W(RW) DISPLAY 96-100, S804 LCD_RST_O COM0-15 1-11 IC402 JOGKEY_AD DC/DC CONVERTER Q411...

  • Page 15: Printed Wiring Board - Main Board (Side A)

    D-CS901 6-2. Printed Wiring Board – MAIN Board (Side A) – (TEST) IC403 • Semiconductor Location Ref. No. Location D413 IC403 Q404 Q408 Q410 Q412...

  • Page 16: Printed Wiring Board - Main Board (Side B)

    D-CS901 6-3. Printed Wiring Board – MAIN Board (Side B) – IC602 IC804 IC601 IC405 IC801 IC803 (TEST) TP603 (RF) IC802 • Semiconductor Location Ref. No. Location IC701 D101 IC703 D201 D301 D401 D403 D404 D405 D406 IC402 D408 IC404...

  • Page 17: Schematic Diagram - Main Board (1/4)

    D-CS901 6-4. Schematic Diagram – MAIN Board (1/4) – • See page 26 for IC Pin Function Descriptions. • See page 12 for Waveforms.

  • Page 18: Schematic Diagram - Main Board (2/4)

    D-CS901 6-5. Schematic Diagram – MAIN Board (2/4) – • See page 23 for IC Block Diagrams. • See page 29 for IC Pin Function Descriptions.

  • Page 19: Schematic Diagram - Main Board (3/4)

    D-CS901 6-6. Schematic Diagram – MAIN Board (3/4) – • See page 24 for IC Pin Function Descriptions.

  • Page 20: Schematic Diagram - Main Board (4/4)

    D-CS901 6-7. Schematic Diagram – MAIN Board (4/4) – • See page 31 for IC Pin Function Descriptions. • See page 12 for Waveforms.

  • Page 21: Printed Wiring Board

    D-CS901 6-8. Printed Wiring Board – MAIN (SWITCH UNIT) Board – (LIQUID CRYSTAL DISPLAY)

  • Page 22: Schematic Diagram

    D-CS901 6-9. Schematic Diagram – MAIN (SWITCH UNIT) Board – • See page 23 for IC Block Diagrams. It is impossible to measure the voltage of IC1.

  • Page 23: Ic Block Diagrams

    D-CS901 • IC Block Diagrams IC301 TA2120FN (EL) (MAIN Board) BIAS MUTE MUTE_ γ BIAS BEEP BEEP BIAS ROUT LOUT RF IN OCL ROUT VREF LOUT PGND MIX IC1 NJU6570AC (MAIN (SWITCH UNIT) Board)

  • Page 24: Ic Pin Function Descriptions

    D-CS901 6-10. IC Pin Function Descriptions • MAIN Board IC401 TB2130AF (Coil Driver, Motor Driver, Power Control) Pin No. Pin Name Description VREF — Reference voltage terminal RF41 Output of the operational amplifier 1 (Power supply 4 APC) PAPC Non-inverting input of the operational amplifier 1 (Power supply 4 APC) VINDET —...
  • Page 25 D-CS901 Pin No. Pin Name Description VCC1 VCC1 (for CD DSP) output (= 1.98V standard) DELAY — Terminal for VCC1 control time constant DTC2 — Duty setting terminal (Power supply 2 VCPU) INM2 Inverting input of the operational amplifier (Power supply 2 VCPU)
  • Page 26 D-CS901 • MAIN Board IC601 CXD3029R ( RF Amp, Digital Signal Processor, Digital Servo Processor ) Pin No. Pin Name Description XRAS DRAM row address strobe signal output DRAM data input enable signal output DRAM data bus 1 DRAM data bus 0...
  • Page 27 D-CS901 Pin No. Pin Name Description AOUT2 R-Ch analog output AVDD2 — Power supply (analog) TES1 Test pin (Normally connected to ground) TEST Test pin (Normally connected to ground) VSS1 — Ground (digital) MUTE_O L-Ch,R-Ch “0” detection flag (AND output)
  • Page 28 D-CS901 Pin No. Pin Name Description PCMD_O D/A interface Serial data output PCMD_I D/A interface Serial data input BCK_O D/A interface Bit clock output BCK_I D/A interface Bit clock input DVDD — Power supply (DRAM interface) 113 to 116 A3 to A0...
  • Page 29 D-CS901 • MAIN Board IC701 CXD9717R-002 (MP3 Decoder) Pin No. Pin Name Description /RESET Reset input terminal “L”: reset MIMD (3.0V) Microcomputer interface mode selection input “H”: I2C, “L”: TSB (fixed at “H”) Microcomputer interface chip select signal input (fixed at “L”) Microcomputer interface latch pulse input (fixed at “L”)
  • Page 30 D-CS901 Pin No. Pin Name Description Audio clock output VDDX (2.5V) — Power supply (2.5V) for oscillation circuit Resonator terminal Resonator terminal VSSX — Ground for oscillation circuit...
  • Page 31 D-CS901 • MAIN Board IC801 µPD78F4216AY-MP1 (System Control) Pin No. Pin Name Description MP3STANDBY_O Standby signal output to the MP3 decoder (IC701) XCEX_I Version setting input “L” : AEP model XLCD_TEST_I Test setting terminal for LCD test pattern 4 to 8 —...
  • Page 32 D-CS901 Pin No. Pin Name Description DSP_XLAT_O Latch signal output to the DSP (IC601) 56 to 63 D0 to D7 Data bus to the LCD driver (IC1) LCD driver address control signal output 65 to 71 — Not used (open) —...

  • Page 33: Exploded Views

    D-CS901 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • The mechanical parts with no reference num- The components identified by mark 0 or may have some difference from the original ber in the exploded views are not supplied.

  • Page 34: Cabinet Section

    D-CS901 6-2. Cabinet Section Optical Pick-Up section (CDM-3125ER) BT402 BT400 BT401 cabinet lower section supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-237-999-01 CABINET (FRONT) 3-221-309-01 LEVER (VOL) (A) 3-238-001-01 LID, BATTERY CASE 4-223-413-01 SCREW (M1.4X3) 3-238-014-01 ARM (B) 3-338-687-21 SCREW (M1.4X2), TAPPING...

  • Page 35: Cabinet Lower Section

    D-CS901 6-3. Cabinet Lower Section 102 103 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-238-023-01 BUTTON (JOG) 3-238-020-01 PLATE (JOG) 3-238-017-01 RUBBER 3-221-310-01 LEVER (VOL) (B) 3-318-201-51 SCREW (B) (1.4X4), TAPPING X-3382-334-1 CABINET (LOWER) SUB ASSY...

  • Page 36: Optical Pick-Up Section (Cdm-3125Er)

    D-CS901 6-4. Optical Pick-up Section (CDM-3125ER) M901 M902 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-218-821-01 COVER, GEAR 3-686-458-03 SCREW (P1.4X3.5), TAPPING 0 160 3-318-203-71 SCREW (B1.7X5), TAPPING X-3380-950-1 OPTCAL PICK-UP (DAX-25E) A-3052-902-A FEED ASSY, SCREW...

  • Page 37: Electrical Parts List

    D-CS901 SECTION 8 MAIN ELECTRICAL PARTS LIST NOTE: • Abbreviation • Items marked “*” are not stocked since they • Due to standardization, replacements in the CND : Canadian model. are seldom required for routine service. parts list may be different from the parts speci- AUS : Australian model.
  • Page 38 D-CS901 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C618 1-117-720-11 CERAMIC CHIP 4.7uF D408 8-719-069-54 DIODE UDZSTE-175.1B C619 1-162-915-11 CERAMIC CHIP 10PF 0.5PF D409 8-719-404-50 DIODE MA111-TX C620 1-162-915-11 CERAMIC CHIP 10PF 0.5PF C622 1-125-891-11 CERAMIC CHIP 0.47uF...
  • Page 39 D-CS901 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks L606 1-216-295-91 SHORT CHIP R424 1-216-833-11 METAL CHIP 1/16W R425 1-216-857-11 METAL CHIP 1/16W L812 1-400-202-21 INDUCTOR 4.7uH R426 1-216-857-11 METAL CHIP 1/16W L824 1-400-202-21 INDUCTOR 4.7uH...
  • Page 40 D-CS901 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R615 1-216-853-11 METAL CHIP 470K 1/16W R728 1-216-813-11 METAL CHIP 1/16W R616 1-216-833-11 METAL CHIP 1/16W R729 1-216-813-11 METAL CHIP 1/16W R730 1-216-853-11 METAL CHIP 470K...
  • Page 41 D-CS901 MAIN (SWITCH UNIT) Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-685-277-11 MAIN (SWITCH UNIT) BOARD < SWITCH > ************************ 1-771-053-21 SWITCH, KEY BOARD (DISPLAY) < CAPACITOR > 1-771-053-21 SWITCH, KEY BOARD (PLAY MODE) 1-771-053-21 SWITCH, KEY BOARD (SOUND) 1-164-156-11 CERAMIC CHIP 0.1uF...
  • Page 42 D-CS901 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. Ver. Date Description of Revision...

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