Sony ICF-CD823L Service Manual

Fm/mw/lw cd clock radio
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SERVICE MANUAL
Ver 1.1 2001. 04
CD player section
System: Compact disc digital audio system
Laser diode properties: Material: GaAlAs
Wavelength: 780 nm
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 the optical pick-up block with
7 mm aperture.)
Frequency response: 20-20,000 Hz
Wow and flutter: Below measurable limit
Radio section
Frequency range:
Band
FM
87.5-108 MHz
MW
531-1,602 kHz
LW
153-279 kHz
Sony Corporation
9-927-932-12
2001D1600-1
Personal Audio Company
© 2001.4
Shinagawa Tec Service Manual Production Group
ICF-CD823L
SPECIFICATIONS
General
Time display:
North and South America and Australia:
Other countries: 24-hour system
Speaker:
77 mm (3
Output:
i (headphones) jack (ø 3.5 mm stereo minijack)
+1
dB
Power outputs:
–1.5
1.2 W + 1.2 W
Power requirements:
Channel step
Dimensions:
Approx. 250 × 153 × 207 mm (w/h/d)
0.05 MHz
9 kHz
9 kHz
Mass:
Approx. 1,700 g (3 lb. 12 oz.)
Design and specifications are subject to change
without notice.
Model Name Using Similar Mechanism
Optical Device Name
Optical Pick-UP Name
12-hour system
inches) dia., 4 Ω
1
8
(except North American model)
(at 10% harmonic distortion)
220-230 V AC, 50 Hz
× 6
× 8
7
1
1
(Approx. 9
inches) incl.
8
8
4
projecting parts and controls
FM/MW/LW CD CLOCK RADIO
AEP Model
UK Model
CFD-930L
KSM-213CDM
KSS-213C

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Summary of Contents for Sony ICF-CD823L

  • Page 1 ICF-CD823L SERVICE MANUAL AEP Model UK Model Ver 1.1 2001. 04 Model Name Using Similar Mechanism CFD-930L Optical Device Name KSM-213CDM Optical Pick-UP Name KSS-213C SPECIFICATIONS CD player section General System: Compact disc digital audio system Time display: Laser diode properties: Material: GaAlAs...
  • Page 2: Table Of Contents

    Note on chip component replacement OPERATION. REPLACE THESE COMPONENTS WITH • Never reuse a disconnected chip component. SONY PARTS WHOSE PART NUMBERS APPEAR AS • Notice that the minus side of a tantalum capacitor may be dam- SHOWN IN THIS MANUAL OR IN SUPPLEMENTS aged by heat.
  • Page 3 LASER DIODE AND FOCUS SEARCH OPERATION CHECK NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT 1. Open the CD lid. The laser diode in the optical pick-up block may suffer electrostatic 2. Turn on S501 as following figure. break-down because of the potential difference generated by the 3.
  • Page 4: General

    SECTION 1 GENERAL This section is extracted from instruction manual. Setting the Clock and Date 1 Set the alarm setting dial to ALARM MODE OFF. 2 Plug in the clock radio. The display will flash “AM 12:00” or “0:00”. 3 Press CLOCK for a few seconds. You will hear a beep and the year will start to flash in the display.
  • Page 5: Disassembly

    SECTION 2 DISASSEMBLY • The equipment can be removed using the following procedure. Main board Cabinet, lower Panel (front) sub assy Transformer board Optical pick-up block (KSM-213CDM) Note: Follow the disassembly procedure in the numerical order given. 2-1. CABINET, LOWER 2 Two screws (+P 3 ×...
  • Page 6: Main Board

    2-2. MAIN BOARD 1 Four screws (+P 3 × 10) 4 Panel (front) assy 0 Flat cable 9 Screw (+P 3 × 10) 8 Screw (+P 3 × 10) qs Main board 2 Connector 5 Screw 3 Connector (+P 3 × 10) 6 Connector 7 Key (upper) board qa Connector...
  • Page 7: Transformer Board

    2-4. OPTICAL PICK-UP BLOCK (KSM-213CDM) 1 Screw (+P 3 × 10) 2 Cover (unit) 4 Two screws 3 Two screws (2.6 × 10) (2.6 × 10) 5 Optical pick-up block (KSM-213 CDM) 2-5. TRANSFORMER BOARD 1 Screw (+BTP 3 × 10) 3 Two screws (+BTP 3 ×...
  • Page 8: Test Mode

    SECTION 3 TEST MODE 3-1 LCD Test Mode • The LCD test mode is initiated by turning off the main power once then back on or by resetting the machine while TP415 (LCD TEST, pin- 60 terminal) is connected to GND. (LCD segment) •...
  • Page 9 CD TEST-1 FOCUS Auto adjustment Rough servo BAND +button CD button button button TEST MODE END The second music Servo ON Sled maement CD STOP button played back. BAND +button CD button button button jump has been set? Execntes the Sets the respective TRACKING setting of jump.
  • Page 10: Electrical Adjustments

    SECTION 4 ELECTRICAL ADJUSTMENTS PRECAUTION LW FREQUENCY COVERAGE ADJUSTMENT • Adjustment should be performed in the order given. Adjust for a maximum reading on level meter TUNER SECTION 0 dB=1 µV 153 kHz LW TRACKING ADJUSTMENT [FM] Adjust for a maximum reading on level meter Setting: Function switch : RADIO L3-2...
  • Page 11: Diagrams

    ICF-CD823L SECTION 5 DIAGRAM 5-1. BLOCK DIAGRAM Note on Printed Wiring Board: • Waveforms • X : parts extracted from the component side. • b : Pattern from the side which enables seeing. IC401 ud (XT1) • : Through hole.
  • Page 12 ICF-CD823L 5-3. SCHEMATIC DIAGRAM – MAIN SECTION (1/2) – • Refer to page 13 for Waveforms. • Refer to page 25 for IC Pin Function Description. • Refer to page 26 for IC Block Diagrams. — 14 — — 15 —...
  • Page 13 ICF-CD823L 5-4. SCHEMATIC DIAGRAM – MIAN SECTION (2/2) – • Refer to page 13 for Waveforms. • Refer to page 26 for IC Block Diagrams. — 17 — — 18 — — 19 —...
  • Page 14: Main Section (1/2)

    ICF-CD823L 5-5. PRINTED WIRING BOARD – MAIN SECTION – MAIN BOARD (SIDE A) MAIN BOARD (SIDE B) • Refer to page 13 for Circuit Board Location. KEY (UPPER) CN401 BOARD • Semiconductor Location Ref. No. Location KEY (FRONT) CN402 B-10...
  • Page 15: Panel Section

    ICF-CD823L 5-6. PRINTED WIRING BOARD – PANEL SECTION – • Refer to page 13 for Circuit Board Location. KEY (UPPER) BOARD J301 S713 WAKE UP TRACK SPEAKER S711 SP101 CD PLAY (L ch) L251 MODE MAIN BOARD S701 TUNING SP201...
  • Page 16: Ic Pin Function Description

    5-7. IC PIN FUNCTION DESCRIPTION 5-8. IC BLOCK DIAGRAMS • MAIN BOARD IC401 µPD789407AGK-A21-9EU (SYSTEM CONTROL/LCD DRIVER) CXA1238M-T6 Pin No. Pin Name Description − VDD1 System power supply BIAS LCD bias output − 28 27 26 25 24 23 22 21 3–5 VLC0–2 LCD drive power supply...
  • Page 17 IC501 CXA1992BR 32 31 28 27 RF SUMMING AMP PD2 IV PD1 IV SENS2 FE BIAS SENS1 C OUT F IV AMP LASER POWER CONTROL FE AMP E IV AMP XRST DATA TGFL DFCT MIRR TRK GAIN WINDOW COMP FO BIAS E-F BALANCE WINDOW WINDOW COMP...
  • Page 18 IC551 CXD2589Q 59 58 57 54 53 52 51 50 SYSM SERIAL-IN INTERFACE LRCKI LRCK AVSS ASYO OVER SAMPLING DIGITAL FILTER ASYI ASYMMETRY AVDD DEMODULATOR CORRECTOR BIAS 3rd-ORDER AOUT1 NOISE SHAPER AIN1 AVDD LOUT1 AVSS CLTV XVDD TIMING ERROR XTAI LOGIC CORRECTOR AVSS...
  • Page 19: Exploded Views

    SECTION 6 EXPLODED VIEWS NOTE: • The mechanical parts with no reference number • -XX, -X mean standardized parts, so they may in the exploded views are not supplied. The components identified by mark 0 or have some differences from the original one. •...
  • Page 20: Upper Cabinet Section

    Ver 1.1 2001. 04 6-2. UPPER CABINET SECTION SP101 supplied SP201 LCD401 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-045-076-01 KNOB(ALARM) (A) 3-910-095-31 RUBBER, VIBRATION PROOF 3-045-077-01 BUTTON (ALARM) (A) 3-921-725-01 SCREW (2.6X10), +PWH X-3378-844-1 PANEL (FRONT) SUB ASSY 3-931-379-01 RUBBER, VIBRATION PROOF 3-713-786-51 SCREW +P 2X3 1-777-955-11 WIRE(FLAT TYPE) (16 CORE)
  • Page 21: Optical Pick-Up Section

    Ver 1.1 2001. 04 6-3. OPTICAL PICK-UP SECTION (KSM-213CDM) not supplied M572 M571 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ! 101 8-848-483-05 OPTICAL PICK-UP KSS-213CDM M571 X-2625-769-1 GEAR ASSY (MB), MOTOR (SLED) 2-626-907-01 GEAR (A) M572 X-2626-202-1 CHASSIS ASSY (MB), (RP) (SPINDLE) 2-627-003-02 GEAR (B) (RP)
  • Page 22: Electrical Parts List

    BACK LIGHT HEADPHONE SECTION 7 ELECTRICAL PARTS LIST KEY (FRONT) KEY (UPPER) NOTE: • Due to standardization, replacements in the • CAPACITORS: • SEMICONDUCTORS parts list may be different from the parts uF: µF In each case, u: µ, for example: specified in the diagrams or the components •...
  • Page 23 KEY (UPPER) MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks S706 1-692-014-11 SWITCH, KEY BOARD (BAND) 1-163-239-11 CERAMIC CHIP 33PF 5.00% 50V S707 1-692-014-11 SWITCH, KEY BOARD (OFF) 1-163-233-11 CERAMIC CHIP 18PF 5.00% 50V S708 1-692-014-11 SWITCH, KEY BOARD (2) 1-162-927-11 CERAMIC CHIP 100PF...
  • Page 24 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C428 1-162-964-11 CERAMIC CHIP 0.001uF C554 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C433 1-163-227-11 CERAMIC CHIP 10PF 0.50PF 50V C555 1-164-315-11 CERAMIC CHIP 470PF 5.00% 50V C434 1-163-227-11 CERAMIC CHIP 10PF 0.50PF 50V...
  • Page 25 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C920 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V < HOLDER > < FILTER > * KH901 1-573-287-11 HOLDER, CABLE 2P 1-760-238-11 FILTER, CERAMIC < COIL > * CF2 1-578-677-21 FILTER, CERAMIC 1-760-238-11 FILTER, CERAMIC 1-406-545-11 COIL, AIR-CORE...
  • Page 26 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-216-057-00 METAL CHIP 2.2K 1/10W R403 1-216-847-11 METAL CHIP 150K 1/16W 1-216-831-11 METAL CHIP 6.8K 1/16W R404 1-216-847-11 METAL CHIP 150K 1/16W 1-216-831-11 METAL CHIP 6.8K 1/16W R405 1-216-847-11 METAL CHIP 150K...
  • Page 27 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R463 1-216-821-11 METAL CHIP 1/16W R531 1-216-101-00 METAL CHIP 150K 1/10W R464 1-216-821-11 METAL CHIP 1/16W R532 1-216-105-91 RES-CHIP 220K 1/10W R465 1-216-809-11 METAL CHIP 1/16W R551 1-216-821-11 METAL CHIP 1/16W R466...
  • Page 28 ICF-CD823L Ver 1.1 2001. 04 MAIN MOTOR (6P) TRANSFORMER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < VARIABLE RESISTOR > < TRANSFORMER > 1-241-765-11 RES, ADJ, CARBON 22K 0 T901 1-435-579-31 TRANSFORMER, POWER RV301 1-225-764-11 RES, VAR, CARBON 20K/20K (VOLUME) ************************************************************ <...
  • Page 29 ICF-CD823L MEMO...
  • Page 30 ICF-CD823L 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 2001.04...

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