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Ver 1.2 2002.11 Model Name Using Similar Mechanism CFD-550 Optical Device Name KSM-213BAN Optical Pick-UP Name KSS-213B SPECIFICATIONS Supplied accessories: Instruction manual (1) FM/MW/LW CD CLOCK RADIO Sony Corporation 9-927-129-12 2002K0500-1 Personal Audio Company C 2002.11 Published by Sony Engineering Corporation...
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY.
SECTION 1 SERVICING NOTES HOW TO CHANGED THE CERAMIC FILTERS NOTES ON HANDLING THE OPTICAL PICK-UP This model is used two ceramic filters of CF2 and CF3. BLOCK OR BASE UNIT You must used same type of color marked ceramic filters in order The laser diode in the optical pick-up block may suffer electro- to meet same specifications.
SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. Upper cabinet CD lid assy section Main board section Optical pick-up section Note: Follow the disassembly procedure in the numerical order given. UPPER CABINET SECTION 2 upper cabinet section 3 two flat wires (CN303, 304) 4 connector...
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MAIN BOARD SECTION 4 Open the CD lid. 3 Pull the button (open). 5 screw (B3 × 10) 1 twelve claws 7 flat wire (CN301) 7 flat wire (CN402) 2 net assy 8 main board section 1 two claws 6 four screws 6 three screws (P3 ×...
SECTION 4 POWER CORD SETTING Set the power cord as illustrated below, then install the lower cabinet section. Power Cord lower cabinet section – 7 –...
SECTION 5 ELECTRICAL ADJUSTMENTS AM IF ADJUSTMENT TUNER SECTION 0 dB=1 µV Adjust for a maximum reading on level meter [MW/LW] 450 kHz Setting: Function : RADIO MW FREQUENCY COVERAGE ADJUSTMENT Band switch : MW or LW Adjustment Part Frequency Display Reading on Digital Voltmeter Put the lead-wire AM RF signal 531 kHz...
CD SECTION Focus Bias Adjustment This adjustment is to be done when the optical block is replaced. Note: Tracking Balance Adjustment and Tracking Gain Adjustment are Connection: done automatically in this set. oscilloscope (AC range) TEST MODE MAIN board 1. Press the CD LID OPEN/CLOSE DET switch (S424) on the PUSH SWITCH board.
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Focus Gain Adjustment Procedure: A frequency response analyzer is necessary in order to perform 1. Keep the set horizontal. this adjustment exactly. If the set is not horizontal, this adjustment cannot be per- However, this gain has a margin, so even if it is slightly off, there formed due to the gravity against the 2-axis device 2.
MAIN CLOCK SECTION Main Clock Adjustment Connection: adjustment frequency counter MAIN board TP (+5 V) TP401 (X2) 10 : 1 probe – TP GND (SHIELD) Adjustment jig: 100 k Ω 100 k Ω +5 V 1 M Ω 1000 pF 0.5 pF 1 M Ω...
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Adjustment Location and Connecting Points: L3-2 LW Tracking Adjustment RV502 Focus Gain Adjustment RV501 Focus Bias Adjustment – MAIN BOARD (Component Side) – MW Tracking Adjustment L3-1 L4 MW Frequency Coverage Adjustment CT4 LW Frequency Coverage Adjustment FM Tracking Adjustment RV1 FM VCO Adjustment T1 AM IF Adjustment L2 FM Frequency Coverage...
ICF-CD873L 6-2. BLOCK DIAGRAM – TUNER Section – MAIN BOARD (2/3) 10.7MHz ANT1 FM/AM FRONT-END, FM WIRE FM/AM DET, MPX ANTENNA FM/AM FM RF L-CH OUT TUNER L-CH 10.7MHz FE OUT B.P.F. IF IN FM IF AMP/ DECODER R-CH OUT...
ICF-CD873L 6-3. BLOCK DIAGRAM – MAIN Section – • SIGNAL PATH MAIN BOARD (3/3) VOLUME BOARD POWER BOARD : CD PLAY POWER AMP CD/TUNER SELECT SWITCH (FOR FRONT SPEAKER/HEADPHONE) CN301 CN302 CN302 CN301 CN304 : TUNER (FM/MW/LW) IC350 IC320 (1/2)
ICF-CD873L 6-5. SCHEMATIC DIAGRAM – MAIN Section – • • See page 29 for Waveforms. See page 35 for IC Block Diagrams. 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.
ICF-CD873L 6-6. SCHEMATIC DIAGRAM – POWER SUPPLY Section – • See page 38 for IC Block Diagrams. • Waveforms – MAIN Board – 6 IC501 #¡ (RF O), IC502 #§ (RF) !¡ IC50 1 (XOUT) (RADIO ON mode) 1 IC401 %• (X1) (RADIO ON mode) (CD PLAY mode) 500 mV/DIV, 10 µs/DIV...
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• IC Block Diagrams IC501 CXA1782CQ – MAIN Board – IC1 CXA1238M-T6 27 26 25 FM FRONT-END AM FRONT-END REGULATOR LEVEL S FM IF/ DISCRI REGULATOR AM IF/ COUNTER MIRR SENS RF IV AMP1 DFCT COUNTER AUTO TUNING C.OUT BLEND INDICATOR MONO/STEREO MUTING...
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IC502 CXD2508AQ DIGITAL FILTER & 1 BIT D/A CONVERTER WFCK EMPHI EMPH DIGITAL DOUT CLOCK GENERATOR FSTT SCOR MNT0 SUB CODE SBSO MNT1 PROCESSOR EXCK MNT3 SQSO XROF SQCK C2PO MUTE SENS RFCK XRST DATA XPCK ERROR XLAT XUGF CORRECTOR CLOK GTOP BCKI...
6-8. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC401 µPD753012AGC-F17-3B9 (SYSTEM CONTROLLER) Pin No. Pin Name Description 1 to 10 SEG12 to SEG21 Segment drive signal output to the liquid crystal display (LCD401) 11, 12 SEG22, SEG23 Segment drive signal output terminal Not used (open) 13 to 16 KS0 to KS3 Key strobe signal output to the key matrix...
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Pin No. Pin Name Description — Internal connection terminal (connected to power supply) Main system clock input terminal (4.194 MHz) Main system clock output terminal (4.194 MHz) SHIFT CK Shift clock output of the main system clock (4.194 MHz) “H” active COLOR LCD back light color selection signal output terminal “L”: amber, “H”: green DOOR-IN...
SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark may have some difference from the original are seldom required for routine service.
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(2) MAIN BOARD SECTION supplied LCD401 LCD401 ANT1 main board KSM-213BAN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 51 1-673-804-11 MOTOR BOARD * 60 A-3683-099-A MAIN BOARD, COMPLETE (AEP) 3-921-725-01 SCREW (2.6X10), +PWH * 60 A-3683-100-A MAIN BOARD, COMPLETE (UK) 3-910-095-31 RUBBER, VIBRATION PROOF (GREEN) 1-769-824-11 WIRE (FLAT TYPE) (16 CORE)
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(3) LOWER CABINET SECTION SP301 T901 power board The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101...
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(4) OPTICAL PICK-UP SECTION (KSM-213BAN) not supplied M571 M570 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark ! 151...
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HEADPHONE SECTION 8 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark parts list may be different from the parts speci- are seldom required for routine service.
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-3683-099-A MAIN BOARD, COMPLETE (AEP) 1-163-251-11 CERAMIC CHIP 100PF A-3683-100-A MAIN BOARD, COMPLETE (UK) 1-163-009-11 CERAMIC CHIP 0.001uF 1-163-251-11 CERAMIC CHIP 100PF ********************* (Including LED/PUSH SWITCH BOARD) C101 1-163-243-11 CERAMIC CHIP 47PF...
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ICF-CD873L AEP Model UK Model SERVICE MANUAL Ver 1.2 2002.11 SUPPLEMENT-1 Subject: Printed Wiring Boards and Mechanism Parts Modification Accompanying Power Transformer (T901) Modification (ECN-TRA00668) • NEW/FORMER TYPE DISCRIMINATION – POWER BOARD (Component Side) – Former type: 1-673-799-11, -12, -13...
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ICF-CD873L DIAGRAMS 1-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS Note on Schematic Diagram: • Signal path. • All capacitors are in µF unless otherwise noted. pF: µµF : FM 50 WV or less are not indicated except for electrolytics : AM and tantalums.
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ICF-CD873L 1-5. PRINTED WIRING BOARD – POWER SUPPLY Section – POWER BOARD (COMPONENT SIDE) POWER BOARD (CONDUCTOR SIDE) TM902 TM901 HEADPHONE BOARD (COMPONENT SIDE) AC IN LF901 (14) 1-673-801- T901 POWER TRANSFORMER HEADPHONE BOARD F901 (CONDUCTOR SIDE) C380 L380 J301...
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ICF-CD873L 1-6. SCHEMATIC DIAGRAM – POWER SUPPLY Section – R366 R365 C367 1.5k 0.47 VOL IN VOL OUT C369 C368 R364 R CH 0.47 0.47 4.7k L CH Q355 DTA124EKA Q150 2SC2412K Q354,355 R156 (Page 5) BASS ON SPEAKER POWER AMP...
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ICF-CD873L EXPLODED VIEWS NOTE: (2) MAIN BOARD SECTION • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark ! or dotted line with mark may have some difference from the original are seldom required for routine service.
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ICF-CD873L (3) LOWER CABINET SECTION SP301 T901 power board The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No.
ICF-CD873L HEADPHONE MAIN ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by parts list may be different from the parts speci- are seldom required for routine service.
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ICF-CD873L 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 1999.05...