Sony ICF-CDK70 Service Manual

Sony ICF-CDK70 Service Manual

Under cabinet kitchen clock radio with cd-changer
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SERVICE MANUAL
Ver. 1.1 2007.02
CD player section
System: Compact disc digital audio system
Laser diode properties:
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
an optical pick-up block with 7 mm aperture.)
Number of channels: 2
Frequency response: 20 – 20 000 Hz
Wow and flutter: Below measurable limit
Radio section
Frequency range:
FM: 87.5 – 108 MHz
AM: 530 – 1 710 kHz
Antennas:
FM: AC power cord
AM: Built-in ferrite bar antenna
Sony Corporation
9-887-533-02
2007B05-1
Personal Audio Division
©
2007.02
Published by Sony Techno Create Corporation
ICF-CDK70
Model Name Using Similar Mechanism
CD Mechanism Type
Optical Pick-up Block
SPECIFICATIONS
General
Time display: 12-hour system
Speaker: 66 mm (2
(2)
Input:
Audio In jack (stereo minijack): minimum input
level 245 mV, impedance 47 kΩ
Power outputs:
1.4 W + 1.4 W (at 6 Ω, 10 % harmonic distortion)
Power requirements: 120 V AC, 60 Hz
+1
dB
–2
Dimensions:
Approx. 362
(Approx. 14
1
incl. projecting parts and controls
Mass: Approx. 3.2 kg (7 lb 1 oz)
Supplied accessories:
mounting screws (M5 screw) (4)
template (1)
spacers (4)
cord clamp (1)
remote commander (1)
audio cable (1)
digital music player holder (1)
Design and specifications are subject to change
without notice.
FM/AM CD KITCHEN CLOCK RADIO
Canadian Model
5
inches) diam., 6 Ω, cone type
8
105
319 mm (w/h/d)
4
1
12
5
inches)
4
5
8
US Model
HCD-EC50
DLM3A23-11
KSM-213CCP

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Summary of Contents for Sony ICF-CDK70

  • Page 1 (1) audio cable (1) digital music player holder (1) Design and specifications are subject to change without notice. FM/AM CD KITCHEN CLOCK RADIO Sony Corporation 9-887-533-02 2007B05-1 Personal Audio Division © 2007.02 Published by Sony Techno Create Corporation...
  • Page 2: Table Of Contents

    THESE COMPONENTS WITH SONY PARTS PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. PUBLIÉS PAR SONY.
  • Page 3: Servicing Notes

    ICF-CDK70 SECTION 1 SERVICING NOTES NOTES ON HANDLING THE OPTICAL PICK-UP CHUCK PLATE JIG ON REPAIRING BLOCK OR BASE UNIT On repairing CD section, playing a disc without the CD lid, use The laser diode in the optical pick-up block may suffer electrostat- Chuck Plate Jig.
  • Page 4: General

    ICF-CDK70 This section is extracted SECTION 2 from instruction manual. GENERAL  AC power cord Cord clamp Magnet Size AAA (R03) The number 5 and the VOL + buttons have a tactile dot. Features Installing the Batteries TIMER indicator into the Remote...
  • Page 5: Disassembly

    ICF-CDK70 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed.
  • Page 6 ICF-CDK70 3-3. MECHANISM DECK (DLM3A23-11) (When TRAY carries out movable.) cover (tray) Press the OPEN/CLOSE button two claws to open the tray. Close the tray. two screws (B2.6) two screws (B2.6) mechanism deck (DLM3A23-11) flexible flat cable (13 core) (CN305)
  • Page 7: Mechanism Deck (Dlm3A23-11) (When Tray Does Not Carry Out Movable.)

    ICF-CDK70 3-4. MECHANISM DECK (DLM3A23-11) (When TRAY does not carry out movable.) Raise the cabinet (front) section backside as shown in a figure. screw screw Lift up the mechanism deck (DLM3A23-11) in the direction of an arrow. two screws (B2.6) two screws (B2.6)
  • Page 8: Cabinet (Front) Section

    ICF-CDK70 3-5. CABINET (FRONT) SECTION cabinet (front) section screw flexible flat cable (4 core) (CN409) flexible flat cable (14 core) (CN402) screw flexible flat cable (9 core) (CN413) flexible flat cable (12 core) (CN401) 3-6. CD LID ASSY boss CD lid assy...
  • Page 9: Optical Pick-Up Block (Ksm-213Ccp)

    ICF-CDK70 3-7. OPTICAL PICK-UP BLOCK (KSM-213CCP) two floating screws (PTPWHM 2.6) two coil springs (insulator) two insulators two floating screws (PTPWHM 2.6) two coil springs (insulator) two insulators mechanism deck (back side) optical pick-up block (KSM-213CCP) flexible flat cable (16 core)
  • Page 10: How To Pull Out Tray

    ICF-CDK70 3-8. HOW TO PULL OUT TRAY optical pick-up block Pull out the tray. Note: When the optical pick-up block in which the optical pick-up block is chucking and which cannot draw out TRAY is chucking, please draw out TRAY after removing an gear optical pick-up block.
  • Page 11: Test Mode

    ICF-CDK70 SECTION 4 TEST MODE CD SHIP MODE Function to put tray of disc 1 into state of chuck for transportation is installed in this set. Procedure: 1. Turn the power on, and put it into the state that there is no CD in the disc tray.
  • Page 12 ICF-CDK70 CD TEST MODE Procedure: 1. Turn the power on. 2. Press three keys of the [ ], [3] and [TUNING MODE] simul- taneously. 3. When the CD test mode is activated, “88” is displayed. 4. Insert the CD to the tray of disc 1, and press the [ ] key to the playback.
  • Page 13: Electrical Adjustments

    ICF-CDK70 SECTION 5 ELECTRICAL ADJUSTMENTS 0 dB=1 µV TUNER SECTION AM IF ADJUSTMENT Adjust for a maximum reading on level meter [AM] 450 kHz Setting: Function: RADIO Band: AM AM VCO VOLTAGE ADJUSTMENT MAIN board Reading on Digital CN303 pin...
  • Page 14 ICF-CDK70 Adjustment Location: – TU BOARD (Component Side) – FM VCO Voltage Adjustment T2 FM IF Adjustment AM VCO Voltage Adjustment T1 AM IF Adjustment FM Tracking Adjustment AM Tracking Adjustment – TU BOARD (Conductor Side) – TP (VT) TP (ANT)
  • Page 15 ICF-CDK70 CD SECTION RF SIGNAL CHECK Procedure: 1. Connect the oscilloscope to TP (RF) and TP (VC) on the CD board. 2. Insert the disc (PATD-012) (Part No. : 4-225-203-01). 3. Press the [ ] button. 4. Confi rm that the oscilloscope waveform is as shown in the fi g- ure below.
  • Page 16 ICF-CDK70 MEMO...
  • Page 17: Diagrams

    ICF-CDK70 SECTION 6 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. • Circuit Boards Location TU board For Printed Wiring Boards. For Schematic Diagrams. Note: Note: MAIN board • X : parts extracted from the component side.
  • Page 18: Printed Wiring Board - Cd Board

    ICF-CDK70 6-1. PRINTED WIRING BOARD - CD Board - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location Ref. No. Location D701 CD BOARD D702 IC701 IC702 Q701 Q702 Q703 Q704 IC702 M701...
  • Page 19: Schematic Diagram - Cd Board

    ICF-CDK70 6-2. SCHEMATIC DIAGRAM - CD Board - • See page 30 for Waveforms. • See page 30 for IC Block Diagrams. R762 Q704 R754 R753 2SC3052EF-T1-LEF FOCUS GAIN C761 C760 D702 R761 CONTROL SWITCH R755 C748 MA111-TX R714 C754...
  • Page 20: Printed Wiring Board - Tu Board

    ICF-CDK70 6-3. PRINTED WIRING BOARD - TU Board - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. TU BOARD AM FERRITE-ROD ANTENNA TP (VT) (ANT) JW14 POWER TP (GND) BOARD CN902 (Page 28) TP (CV)
  • Page 21: Schematic Diagram - Tu Board

    ICF-CDK70 6-4. SCHEMATIC DIAGRAM - TU Board - • See page 30 for Waveforms. • See page 30 for IC Block Diagrams. AM FERRITE-ROD KV1520NT 220p AM OSC ANTENNA 100p JC12 JC11 1µH 0.01 220k (VT) 1000p 0.01 TP (CV) 100k 0.01...
  • Page 22: Schematic Diagram - Main Board (1/2)

    ICF-CDK70 6-5. SCHEMATIC DIAGRAM - MAIN Board (1/2) - • See page 30 for Waveforms. • See page 33 for IC Pin Function Description. (1/2) Q803 RT1N144C-TP-1 CN401 MUTING R866 R864 R897 C839 0.01 C836 R876 TMUT C835 0.01 C840...
  • Page 23: Schematic Diagram - Main Board (2/2)

    ICF-CDK70 6-6. SCHEMATIC DIAGRAM - MAIN Board (2/2) - • See page 30 for IC Block Diagrams. (2/2) CN413 C869 1000p KEY2 KEY2 C868 1000p KEY1 KEY1 C113 R117 BASS BASS ENC+ ENC+ R114 C112 R116 R110 INPUT SELECTOR,ELECTRICAL VOLUME 470k 0.022...
  • Page 24: Printed Wiring Board - Main Board

    ICF-CDK70 6-7. PRINTED WIRING BOARD - MAIN Board - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. • Semiconductor Location CD BOARD CNP702 Ref. No. Location (Page 18) MAIN BOARD D307 D308 D309 D951 L807...
  • Page 25: Schematic Diagram - Panel/Key Section

    ICF-CDK70 6-8. SCHEMATIC DIAGRAM - PANEL/KEY Section - R404 R403 S416 KEY1 KEY1 ROTARY ENCODER KEY2 KEY2 VOLUME S404 S403 S402 R402 R401 S417 D-GND D-GND MEGA BASS OPEN/CLOSE EX-CHANGE TUNING MODE TUNE/PRESET/ TRACK - R411 R410 R409 R408 KEY2...
  • Page 26: Printed Wiring Boards - Panel Section

    ICF-CDK70 6-9. PRINTED WIRING BOARDS - PANEL Section - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. TIMER BOARD REMOTE CONTROL BOARD S414 MODE R419 R421 S415 ROTARY ENCODER IC401 TIMER PUSH START/STOP S413 CLOCK/ D.S.T.
  • Page 27: Printed Wiring Boards - Key Section

    ICF-CDK70 6-10. PRINTED WIRING BOARDS - KEY Section - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. KEY BOARD S403 EX-CHANGE S402 TUNING MODE S402 S403 S409 S408 S407 TUNER/PRESET/ R410 TRACK - S407 RADIO/BAND...
  • Page 28: Printed Wiring Boards - Power Supply Section

    ICF-CDK70 6-11. PRINTED WIRING BOARDS - POWER SUPPLY Section - • See page 17 for Circuit Boards Location. • : Uses unleaded solder. AMP BOARD Q302 POWER BOARD C222 R226 R224 R220 R219 C227 R225 C311 R221 CN903 C226 C225...
  • Page 29: Schematic Diagram - Power Supply Section

    ICF-CDK70 6-12. SCHEMATIC DIAGRAM - POWER SUPPLY Section - • See page 30 for IC Block Diagrams. Q301 Q301,302 RT1P441C-TP-1 STANDBY SWITCH POW_ON Q302 RT1N141C-TP-1 C311 C225 C223 C228 2200 0.22 R221 C227 1000 R230 C222 R228 R229 C217 C226...
  • Page 30 ICF-CDK70 • Waveforms • IC Block Diagrams - CD Board - - TU Board - - MAIN Board - - CD Board - IC701 BU9532KS2 IC701 (FEO) (XOUT) IC801 (X1A) (CD play mode) 52 51 50 49 48 47 46 45...
  • Page 31 ICF-CDK70 - TU Board - IC1 TA2149BN RF GND FM RFOUT FM RF RF VCC FM RFIN AM RFIN AM LOW CUT MIX OUT FM OSC AM OSC BUFF BUFF 1/1 OR 1/16 OSC OUT LEVEL AM IF AM IF IN...
  • Page 32 ICF-CDK70 - MAIN Board - IC301 R2S15904SP TONE CONTROL L-CH BASS/TREBLE MODE SURROUND SELECTOR MUTE MUTE INPUT GAIN CONTROL INPUT GAIN INPUT INPUT CONTROL SELECTOR SELECTOR TONE CONTROL R-CH BASS/TREBLE - AMP Board - IC302 UTC8227 S VCC1 CH-2 VCC2...
  • Page 33 ICF-CDK70 • IC Pin Function Description MAIN BOARD IC801 MB90802PF-G-124E1 (SYSTEM CONTROLLER) Pin No. Pin Name Description O-TU-DO Serial data output to the FM/AM PLL O-TU-CE Chip enable signal output to the FM/AM PLL "L": active Detection input from the sled limit-in detect switch I-CD-LIMSW The optical pick-up is inner position when "L"...
  • Page 34 ICF-CDK70 Pin No. Pin Name Description 63, 64 SEG0, SEG1 Segment drive signal output to the liquid crystal display Power supply terminal (+3.3V) Ground terminal 67 to 81 SEG2 to SEG16 Segment drive signal output to the liquid crystal display...
  • Page 35: Exploded Views

    ICF-CDK70 SECTION 7 EXPLODED VIEWS Note: • -XX and -X mean standardized parts, so • The mechanical parts with no reference The components identifi ed by mark 0 they may have some difference from the number in the exploded views are not sup- or dotted line with mark 0 are critical for original one.
  • Page 36: Cabinet (Front) Section

    ICF-CDK70 Ver. 1.1 7-2. CABINET (FRONT) SECTION TIMER board LCD board not supplied 59 60 not supplied LCD401 not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2177-115-1 CABINET (FRONT) SUB ASSY A-1224-501-A...
  • Page 37: Cabinet (Lower) Section

    ICF-CDK70 7-3. CABINET (LOWER) SECTION not supplied (CND) F901 MAIN board not supplied SP101 T901 supplied not supplied not supplied AMP board CD lid assy section not supplied not supplied SP201 Ref. No. Part No. Description Remark Ref. No. Part No.
  • Page 38: Cd Lid Assy Section

    ICF-CDK70 7-4. CD LID ASSY SECTION LED board Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-2177-114-1 LID (FRONT) SUB ASSY, CD 2-893-491-01 LEVER (SHAFT L) 3-573-007-01 SHEET (1) 2-893-510-01 SPRING (ARM L) A-1224-490-A LED BOARD, COMPLETE...
  • Page 39: Cd Mechanism Deck Section (Dlm3A23-11)

    ICF-CDK70 7-5. CD MECHANISM DECK SECTION (DLM3A23-11) not supplied not supplied not supplied not supplied not supplied not supplied not supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1226-316-A CD BOARD, COMPLETE 0 207...
  • Page 40: Electrical Parts List

    ICF-CDK70 SECTION 8 ELECTRICAL PARTS LIST Note: • Due to standardization, replacements in • RESISTORS When indicating parts by reference num- the parts list may be different from the All resistors are in ohms. ber, please include the board name.
  • Page 41 ICF-CDK70 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R955 1-216-833-11 METAL CHIP 1/10W C753 1-162-927-11 CERAMIC CHIP 100PF R956 1-216-821-11 METAL CHIP 1/10W C754 1-164-230-11 CERAMIC CHIP 220PF R957 1-216-821-11 METAL CHIP 1/10W C755 1-125-837-11 CERAMIC CHIP 1uF 6.3V...
  • Page 42 ICF-CDK70 JACK Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R713 1-216-793-11 METAL CHIP 1/10W R776 1-216-833-11 METAL CHIP 1/10W R714 1-216-793-11 METAL CHIP 1/10W R777 1-216-833-11 METAL CHIP 1/10W R715 1-216-845-11 METAL CHIP 100K 1/10W...
  • Page 43 ICF-CDK70 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < LED > < CAPACITOR > D404 6-501-553-01 LED 1L341Y22C0MA801 (LCD BACK LIGHT) C101 1-126-160-11 ELECT < LIQUID CRYSTAL DISPLAY > C102 1-126-160-11 ELECT C103 1-162-964-11 CERAMIC CHIP 0.001uF...
  • Page 44 ICF-CDK70 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C819 1-162-964-11 CERAMIC CHIP 0.001uF C820 1-162-964-11 CERAMIC CHIP 0.001uF < CONNECTOR > C821 1-162-964-11 CERAMIC CHIP 0.001uF CN305 1-784-774-11 CONNECTOR, FFC 13P C822 1-162-964-11 CERAMIC CHIP 0.001uF...
  • Page 45 ICF-CDK70 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R363 1-216-833-11 METAL CHIP 1/10W < RESISTOR > R364 1-216-833-11 METAL CHIP 1/10W R101 1-216-833-11 METAL CHIP 1/10W R365 1-216-817-11 METAL CHIP 1/10W R103 1-216-821-11 METAL CHIP...
  • Page 46 ICF-CDK70 Ver. 1.1 MAIN MEGA BASS POWER REMOTE CONTROL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R828 1-216-864-11 SHORT CHIP X802 1-813-175-21 VIBRATOR, CERAMIC (4.19MHz) R829 1-216-833-11 METAL CHIP 1/10W ************************************************************ R830 1-216-833-11 METAL CHIP...
  • Page 47 ICF-CDK70 TIMER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-1224-501-A TIMER BOARD, COMPLETE 1-162-919-11 CERAMIC CHIP 22PF 1-162-915-11 CERAMIC CHIP 10PF 0.5PF ********************** 1-833-902-21 CABLE, FLEXIBLE FLAT (4 CORE) 1-136-169-00 FILM 0.22uF 2-893-520-01 HOLDER (ALARM)
  • Page 48 ICF-CDK70 Ver. 1.1 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-410-509-11 INDUCTOR 10uH MISCELLANEOUS ************** < RESISTOR > 1-833-883-21 CABLE, FLEXIBLE FLAT (14 CORE) 1-216-817-11 METAL CHIP 1/10W 1-833-882-21 CABLE, FLEXIBLE FLAT (12 CORE) 1-216-817-11...
  • Page 49 ICF-CDK70 MEMO...
  • Page 50 ICF-CDK70 REVISION HISTORY Checking 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 2007.01...

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