Sony ICF-CD2000 Service Manual
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Sony ICF-CD2000 Service Manual

Sony ICF-CD2000 Service Manual

Fm/sw/mw cd clock radio
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See also: Operating Instructions
ICF-CD2000/CD2000S
SERVICE MANUAL
Ver 1.0 1999. 10
MICROFILM
Photo: ICF-CD2000 (US model)
Model Name Using Similar Mechanism
Optical Device Name
Optical Pick-Up Name
SPECIFICATIONS
FM/AM CD CLOCK RADIO
FM/SW/MW CD CLOCK RADIO
US Model
Canadian Model
E Model
Tourist Model
ICF-CD2000
AEP Model
UK Model
ICF-CD2000S
D-E551
CDM-2911EBA
DAX-11E
ICF-CD2000
ICF-CD2000S
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  • Page 1 US Model Canadian Model Ver 1.0 1999. 10 E Model Tourist Model ICF-CD2000 AEP Model UK Model ICF-CD2000S Photo: ICF-CD2000 (US model) Model Name Using Similar Mechanism D-E551 Optical Device Name CDM-2911EBA Optical Pick-Up Name DAX-11E SPECIFICATIONS ICF-CD2000 FM/AM CD CLOCK RADIO...

  • Page 2: Table Of Contents

    OPERATION. REPLACE THESE COMPONENTS WITH DE FONCTIONNEMENT. NE REMPLACER CES COM- SONY PARTS WHOSE PART NUMBERS APPEAR AS POSANTS QUE PAR DES PIÈCES SONY DONT LES SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- NUMÉROS SONT DONNÉS DANS CE MANUEL OU LISHED BY SONY.

  • Page 3: Servicing Notes

    SECTION 1 SERVICING NOTES Precautions for Checking Emission of Laser Diode NOTES ON HANDLING THE OPTICAL PICK-UP Laser light of the equipment is focused by the object lens in the BLOCK OR BASE UNIT optical pick-up so that the light focuses on the reflection surface of the disc.
  • Page 4 • Method-2 (In the service mode or normal operation): Check the value of current flowing in the laser diode. 1. Remove the upper panel. 2. Connect a digital voltmeter as show in Fig. 2. 3. Press the key. 4. Calculate current value by the reading of the digital voltmeter. Reading of the digital voltmeter (V) ÷...

  • Page 5: General

    SECTION 2 This section is extracted from instruction manual. GENERAL – 5 –...
  • Page 6 – 6 –...
  • Page 7 – 7 –...

  • Page 8: Disassembly

    SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. Cabinet (lower) assy Cabinet (upper) Cabinet (front) sub assy Optical pick-up Main board (CDM-2911EBA) Note: Follow the disassembly procedure in the numerical order given. CABINET (LOWER) ASSY 5 cabinet (upper) assy 4 flat wire (CN301) 1 Open the battery case lid.
  • Page 9 CABINET (UPPER) 1 screw (2 × 8) 2 two claws 2 four claws 1 screw (2 × 8) 3 cabinet (upper) 2 three claws CABINET (FRONT) SUB ASSY 6 cabinet (front) sub assy knob (open) 2 Slide the knob (open) in the direction of the arrow A , and open the cabinet front assy.
  • Page 10 OPTICAL PICK-UP (CDM-2911EBA) 3 optical pick-up (CDM-2911EBA) 2 three connectors (CN601, 602, 603) 1 connector (CN501) MAIN BOARD 3 two screws (B1.7 × 5) 4 Remove two solders. 5 jack board 6 screw (2 × 8) 2 telescopic antenna 7 main board 1 screw (B3 ×...

  • Page 11: Service Mode

    SECTION 4 SERVICE MODE Service Mode (Service program) The equipment is provided with a service program built in the microcomputer, like conventional models. Service program operation methods are described in the follow- ing. • Step 1 (Service mode setting methods) 1.

  • Page 12: Test Mode

    SECTION 5 TEST MODE [Test Mode 1] [Test Mode 3] • Step1 (Test mode 1 setting methods) • Step1 (Test mode 3 setting methods) 1. Connect TP445 (CD TEST 1) to the TP444 (GND). 1. Connect TP448 (CD TEST 3) to the TP449 (GND). 2.
  • Page 13 [ALARM TIME] [LCD Display Check Mode] • Step1 (LCD display check mode setting metyods) 1. Connect TP446 (TUNER TEST) to the TP444 (GND). 2. Insert external power supply. • Step2 (Operation in the LCD display check mode) 1. All segments of LCD light up if the LCD display check mode is activated.
  • Page 14 [PRESET 3] [PRESET 4] [PRESET 5] [ OFF, ALARM RESET] : All lit • Step3 (Resetting of LCD display check mode) 1. Remove external power supply. 2. Disconnect TP446 (TUNER TEST) and TP444 (GND). Connecting Location: – LCD Board (Conductor Side) – TP445 (CD TEST 1) TP448...

  • Page 15: Electrical Adjustments

    SECTION 6 ELECTRICAL ADJUSTMENTS AM (MW) FREQUENCY COVERAGE ADJUSTMENT TUNER SECTION 0 dB=1 µV Adjustment Part Frequency Display Reading on Digital Voltmeter [AM (MW)] 530 (531) kHz 1.7 V Setting: Confirmation 1,710 (1,602) kHz 8.5 V (9.0 V) Band switch : AM (MW) no mark: US, CND ( ) : AEP, UK, E, SP, JE Put the lead-wire AM (MW) TRACKING ADJUSTMENT...
  • Page 16 FM VCO Adjustment FM AUTO SCAN Adjustment Setting: Setting: FM RF SSG FM RF SSG 0.01 µ F 0.01 µ F MAIN board MAIN board FM/SW Telescopic FM/SW Telescopic Antenna (ANT1) Antenna (ANT1) Carrier frequency: 98 MHz Carrier frequency: 98 MHz Modulation: no modulation Modulation: no modulation Output level: 0.1 V (100 dB)
  • Page 17 – MAIN Board (Conductor side) – (DET OUT) (GND) – LCD Board (Conductor side) – TP444 (GND) TP418 (AFC) TP419 (REG) TP429 – 17 –...
  • Page 18 Tracking Balance Check CD SECTION Condition: • Hold the set in horizontal state. Precautions for Adjustment 1. Before beginning adjustment, set the equipment to service Check Procedure: mode. After the completion of adjustment, be sure to reset the ser- oscilloscope (DC range) vice mode.

  • Page 19: Diagrams

    Setting terminal for the model Not used oscilloscope SHOCK (AC range) “L”: shock detection danger Setting terminal for the model “L”: ICF-CD2000, “H”: ICF-CD2000S MAIN board PAUSE Pause signal output to the LC78626KE (IC502) “H”: pause Setting terminal for the model “H”: E, Singapore, Tourist model D-RAM writing enable signal output to the LC78626KE (IC502) “H”: writing enable...

  • Page 20: Block Diagram - Cd Section

    ICF-CD2000/CD2000S 7-2. BLOCK DIAGRAM – CD Section – • SIGNAL PATH EFMO : CD PLAY DETECTOR FIN2 EFMI LCHO FIN1 L-CH RF– SWITCH 1BIT (Page 27) Q504 LEVEL L. P. F. CONTROL RCHO R-CH DEFI (Page 27) FSTA CONT3/SBCK SUB CODE...

  • Page 21: Block Diagram - Main Section

    ICF-CD2000/CD2000S 7-3. BLOCK DIAGRAM – MAIN Section – (Page 26) (Page 26) ANT1 FM / AM FRONT-END FM / AM FRONT-END FM/SW TELESCOPIC ANTENNA IF DISCRI, IF AMP IF DISCRI, IF AMP (CD2000) MIX AMP LOW-PASS FILTER AMP IC1 (1/2)

  • Page 22: Printed Wiring Boards - Main/Jack Boards

    7-4. PRINTED WIRING BOARDS – MAIN/JACK Boards – ICF-CD2000/CD2000S • Semiconductor Location Ref. No. Location Ref. No. Location Ref. No. Location Ref. No. Location MAIN BOARD D-15 D433 E-19 D-15 Q505 K-13 (CONDUCTOR SIDE) Note on Printed Wiring Boards: AM (MW) FERRITE-ROD ANTENNA...

  • Page 23: Schematic Diagram – Main/Jack Boards

    ICF-CD2000/CD2000S 7-5. SCHEMATIC DIAGRAM – MAIN/JACK Boards – • • See page 48 for Waveforms. See page 49 for IC Block Diagrams. (Page 45) – 35 – – 36 – – 37 – – 38 – – 39 –...

  • Page 24: Printed Wiring Boards – Lcd/Key Boards

    ICF-CD2000/CD2000S 7-6. PRINTED WIRING BOARDS – LCD/KEY Boards – Note on Printed Wiring Boards: • Semiconductor Location • X : parts extracted from the component side. KEY BOARD (COMPONENT SIDE) KEY BOARD (CONDUCTOR SIDE) • Y : parts extracted from the conductor side.

  • Page 25: Schematic Diagram - Lcd/Key Boards

    ICF-CD2000/CD2000S 6-7. SCHEMATIC DIAGRAM – LCD/KEY Boards – • See page 42 for Waveforms. Note on Schematic Diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums.
  • Page 26 • Waveforms • IC Block Diagrams – MAIN Board – – LCD Board – – MAIN Board – IC1 CXA1111N IC501 LA9251M-MPB IC2 LA3335M 1 IC3 ql (XIN) (Radio ON Mode) 6 IC502 tl (XOUT) (CD Play Mode) 1 IC401 8 (XT1/P74) 500 mV/DIV, 5 µs/DIV 1 V/DIV, 20 ns/DIV 500 mV/DIV, 10 µs/DIV...
  • Page 27 IC502 LC78626KE 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 DATA WIDTH CONVERSION DEFI OVERFLOW PROCESS SHOCK SHOCK STARTING DETECTION EMPN CONTROL CLOCK VVSS OSCILLATION PAUSEIN ISET DRAM CONTROL VVDD CLOCK CNTOK CONTROL MMC3 TESCLK...
  • Page 28 IC601 LB8118M H FOCUS H TRACKING H SPINDLE H SLED FORWARD FORWARD FORWARD FORWARD REVERSE REVERSE REVERSE REVERSE DRIVE DRIVE DRIVE DRIVE – – VOUT1 VOUT2 MAXIMUM MAXIMUM 1CH/2CH ASP REF VALUE VALUE CHARGE SL REF 1.2V -OVER ERROR AMP –...

  • Page 29: Exploded Views

    SECTION 8 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
  • Page 30 (2) LCD BOARD SECTION LCD401 SP101 SP201 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-033-576-11 WINDOW (LCD) 3-033-573-01 SHEET (LCD) 3-035-203-01 SHEET (SP), ELECTROSTATIC 3-318-203-71 SCREW (B1.7X5), TAPPING X-3378-281-1 CASE (LITHIUM), BATTERY 3-895-823-01 SCREW (B1.4X2.3), TAPPING 3-033-561-01 BUTTON (LITHIUM) 1-791-189-11 WIRE (FLAT TYPE) (36 CORE) (CD2000: US, * 56...
  • Page 31 (3) MAIN BOARD SECTION CDM-2911EBA supplied not supplied ANT1 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-033-547-11 CABINET (LOWER) (CD2000) 3-033-549-01 CHASSIS 3-033-547-21 CABINET (LOWER) (CD2000S) 3-033-571-01 TERMINAL (+ -), BATTERY 3-033-570-01 TERMINAL (-), BATTERY 3-033-574-01 CUSHION (BATTERY CASE LID) 3-033-569-01 TERMINAL (+), BATTERY 3-033-550-01 LID, BATTERY CASE...
  • Page 32 (4) MECHANISM DECK SECTION (CDM-2911EBA) not supplied M602 M601 S603 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. sécurité. Replace only with part num- Ne les remplacer que par une pièce ber specified.

  • Page 33: Electrical Parts List

    SECTION 9 JACK ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark are seldom required for routine service. parts list may be different from the parts speci- 0 are critical for safety.
  • Page 34 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C410 1-162-915-11 CERAMIC CHIP 10PF 0.5PF D407 8-719-056-07 LED SLR-342MC3F (LCD BACK LIGHT) C411 1-162-915-11 CERAMIC CHIP 10PF 0.5PF D408 8-719-056-07 LED SLR-342MC3F (LCD BACK LIGHT) D409 8-719-941-86 DIODE DAN202U C412 1-162-920-11 CERAMIC CHIP 27PF...
  • Page 35 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R412 1-216-809-11 METAL CHIP 1/16W R471 1-216-864-11 METAL CHIP 1/16W R413 1-216-809-11 METAL CHIP 1/16W R472 1-216-864-11 METAL CHIP 1/16W R414 1-216-809-11 METAL CHIP 1/16W R473 1-216-864-11 METAL CHIP 1/16W R415 1-216-809-11 METAL CHIP...
  • Page 36 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-162-970-11 CERAMIC CHIP 0.01uF 1-135-177-21 TANTALUM CHIP 1uF (CD2000S) 1-135-259-11 TANTALUM CHIP 10uF 6.3V 1-104-847-11 TANTALUM CHIP 22uF 1-109-982-11 CERAMIC CHIP (CD2000S) 1-164-230-11 CERAMIC CHIP 220PF 1-162-915-11 CERAMIC CHIP 10PF 0.5PF 1-135-259-11 TANTALUM CHIP 10uF...
  • Page 37 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C115 1-162-964-11 CERAMIC CHIP 0.001uF C116 1-135-259-11 TANTALUM CHIP 10uF 6.3V C419 1-162-970-11 CERAMIC CHIP 0.01uF C117 1-164-227-11 CERAMIC CHIP 0.022uF C493 1-162-927-11 CERAMIC CHIP 100PF C494 1-162-927-11 CERAMIC CHIP 100PF C118...
  • Page 38 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C558 1-110-501-11 CERAMIC CHIP 0.33uF C559 1-164-245-11 CERAMIC CHIP 0.015uF C623 1-135-210-11 TANTALUM CHIP 4.7uF C561 1-110-569-11 TANTALUM CHIP 47uF 6.3V C625 1-162-927-11 CERAMIC CHIP 100PF C626 1-135-210-11 TANTALUM CHIP 4.7uF C562 1-113-988-11 TANTALUM CHIP 68uF...
  • Page 39 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 8-719-988-61 DIODE 1SS355TE-17 IC303 8-759-338-78 IC BA10324AFV-E2 D101 8-719-800-76 DIODE 1SS226 IC404 8-759-529-76 IC TC74VHC595FT (EL) D102 8-719-941-86 DIODE DAN202U IC501 8-759-589-95 IC LA9251M-MPB D103 8-719-800-76 DIODE 1SS226 D104 8-719-988-61 DIODE 1SS355TE-17 IC502...
  • Page 40 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark L608 1-412-951-11 INDUCTOR 10uH Q905 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR L609 1-412-959-11 INDUCTOR 47uH Q906 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR L902 1-412-963-11 INDUCTOR 100uH Q907 8-729-921-93 TRANSISTOR 2SB1182F5-QR Q908 8-729-905-34 TRANSISTOR 2SC4081-Q L903 1-409-893-21 INDUCTOR 100uH...
  • Page 41 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-838-11 METAL CHIP 1/16W R115 1-216-821-11 METAL CHIP 1/16W 1-216-797-11 METAL CHIP 1/16W R116 1-216-809-11 METAL CHIP 1/16W 1-216-821-11 METAL CHIP 1/16W R117 1-216-833-11 RES, CHIP 1/16W 1-216-841-11 METAL CHIP 1/16W R118...
  • Page 42 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R311 1-216-821-11 METAL CHIP 1/16W R516 1-216-825-11 METAL CHIP 2.2K 1/16W R315 1-216-845-11 METAL CHIP 100K 1/16W R517 1-218-732-11 METAL CHIP 0.5% 1/16W R518 1-218-720-11 METAL CHIP 0.5% 1/16W R316...
  • Page 43 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R591 1-216-841-11 METAL CHIP 1/16W R852 1-216-841-11 METAL CHIP 1/16W R592 1-216-835-11 METAL CHIP 1/16W R853 1-216-821-11 METAL CHIP 1/16W R854 1-216-837-11 METAL CHIP 1/16W R593 1-216-829-11 METAL CHIP 4.7K 1/16W R905...
  • Page 44 ICF-CD2000/CD2000S Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ACCESSORIESS & PACKING MATERIALS ********************************* 1-418-411-11 ADAPTOR, AC (AC-E6TR1) (US, CND) 1-418-412-11 ADAPTOR, AC (AC-E6TR1) (AEP, SP) 1-418-413-11 ADAPTOR, AC (AC-E6TR1) (JEW) 1-505-521-11 HEADPHONE (MDR-023) (US) 1-569-007-11 ADAPTOR, CONVERSION 2P (JEW)

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