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3 7 63 1515 0
SERVICE MANUAL
Ver 1.0 2001.05
TE
L 13942296513
CD player
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
20 - 20,000 Hz +1/–2 dB
(measured by EIAJ CP-307)
Output (at 4.5 V input level)
Headphones (stereo minijack)
Approx. 12 mW + Approx. 12 mW
at 16 ohms
www
.
Sony Corporation
9-873-148-01
2001E0400-1
Personal Audio Company
© 2001.5
Shinagawa Tec Service Manual Production Group
http://www.xiaoyu163.com
Radio
Frequency range (STEP switch)
9 kHz step:
FM: 87.5 - 108.0 MHz
AM: 531 - 1,710 kHz
10 kHz step:
FM: 87.5 - 108.0 MHz
AM: 530 - 1,710 kHz
Antenna
FM: Headphones cord antenna
AM: Built-in ferrite bar antenna
General
Power requirements
For the area code of the model you purchased,
check the upper left side of the bar code on the
package.
• Two LR6 (size AA) batteries: 3 V DC
• AC power adaptor (DC IN 4.5 V jack):
120 V, 60Hz
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u163
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http://www.xiaoyu163.com
2 9
8
Model Name Using Similar Mechanism
CD Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
Q Q
3
6 7
1 3
1 5
FM/AM PORTABLE CD PLAYER
co
.
D-F20
9 4
2 8
US Model
D-E220/E225/E226CK
CDM-3123EBA
DAX-23E
0 5
8
2 9
9 4
2 8
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.
When using
ESP
on
Two sony alkaline
24
batteries LR6(SG)
* 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) (excluding projecting
parts and controls)
Approx. 161 × 26.3 × 130.3 mm
× 1
× 5
(6
in.)
3/8
1/16
1/4
Mass (excluding accessories)
Approx. 210 g (7.5 oz.)
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.
Headphones (1)
Design and specifications are subject to change
without notice.
m
9 9
9 9
RADIO
off
on
25
66
1

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Table of Contents

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   Summary of Contents for Sony D-F20

  • Page 1 Emission duration: Continuous FM: 87.5 - 108.0 MHz Laser output: Less than 44.6 µW (This output AM: 530 - 1,710 kHz Two sony alkaline is the value measured at a distance of 200 mm Antenna batteries LR6(SG) from the objective lens surface on the optical...
  • Page 2: Table Of Contents

    COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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 PUBLISHED BY SONY.
  • Page 3: Service Note

    D-F20 SECTION 1 SERVICE NOTE 3 7 63 1515 0 NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK detection lever OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static breakdown because of the potential difference generated by the charged electrostatic load, etc.
  • Page 4: General

    D-F20 SECTION 2 GENERAL 3 7 63 1515 0 This section is extracted from instruction manual. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 5: Disassembly

    D-F20 SECTION 3 DISASSEMBLY 3 7 63 1515 0 Note : Follow the disassembly procedure in the numerical order given. 3-1. “LID, BATTERY CASE”, CABINET (FRONT) ASSY 1 B 2x10 0 cabinet (upper) assy 6 claws 4 claws boss...
  • Page 6: Main Board, Md Assy

    D-F20 3 7 63 1515 0 3-3. MAIN BOARD, MD ASSY Note: When installing, fit the knob (HOLD) and S803. 4 MD assy 1 CN501 7 MAIN board 3 CN503 2 CN502 5 S812 6 S813 terminal (–), battery (BT402) terminal (+.–), battery (BT400)
  • Page 7: Electrical Adjustments

    D-F20 SECTION 4 3 7 63 1515 0 ELECTRICAL ADJUSTMENTS TUNER SECTION 0 dB = 1 µV FM FREQUENCY COVERAGE • FM Section CHECK Setting: Frequency Display 87.5 MHz 108 MHz RADIO ON•BAND/MEMORY button : FM Reading on Digital voltmeter 2.5 ±...
  • Page 8: Cd Section

    D-F20 3 7 63 1515 0 Adjustment Location: – MAIN BOARD (SIDE A) – CN501 AM IF ADJ RF-IN FM TRACKING ADJ TP81 IC61 L 13942296513 CT3 L4 AM TRACKING CD SECTION CD section adjustments are done automatically in this set.
  • Page 9: Diagrams

    D-F20 SECTION 5 DIAGRAMS 3 7 63 1515 0 5-1. IC PIN DESCRIPTIONS • IC61 TC9327AF-631 (TUNER PLL, LCD DRIVER) Pin No. Pin Name Pin Description 1 – 4 COM1 – 4 LCD driver signal output 5 – 20 S1 –...
  • Page 10 D-F20 3 7 63 1515 0 Pin No. Pin Name Pin Description AM IN AM oscillation signal input VDD (1.8-2.2V) — Power supply pin RESET Power reset signal input XOUT Crystal oscillation signal output (75 kHz) Crystal oscillation signal input (75 kHz) —...
  • Page 11 D-F20 3 7 63 1515 0 • IC801 TMP88CM22AF-Z3TU01 (SYSTEM CONTROL) Pin No. Pin Name Pin Description — Ground PWRSW Headphone AMP IC power switch signal output FOK I Focus OK signal input from DSP IC. (“L”: NG, “H”: OK)
  • Page 12 D-F20 3 7 63 1515 0 Pin No. Pin Name Pin Description BASS1 O Not used. (Fixed at “H” in this set) BASS2 O Not used. (Fixed at “H” in this set) LCDREQ O LCD display request signal output 54 –...
  • Page 13: Block Diagram -cd Section

    D-F20 3 7 6 3 1 5 1 5 0 5-2. BLOCK DIAGRAM — CD SECTION — MAIN BOARD (1/3) DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR IC601 DETECTOR CN501 WDCK WFCK RFDC RFAC XTAO XTAI VCC1 +2V D0-D3 RFAC...
  • Page 14: Block Diagram -tuner Section

    D-F20 3 7 6 3 1 5 1 5 0 5-3. BLOCK DIAGRAM — TUNER SECTION — MAIN BOARD ( 2/3 ) A MUTE DC/DC CONVERTER TU VCC (Page 13) CD-L CD-R R-CH TU VCC TUNER/CD AM OSC FM/AM FRONT-END,...
  • Page 15: Block Diagram -power Supply Section

    D-F20 3 7 6 3 1 5 1 5 0 5-4. BLOCK DIAGRAM — POWER SUPPLY SECTION — MAIN BOARD (3/3) POWER CONTROL IC401 (3/3) STNG HIGH/BATT SWITCH (Page 14) Q412 INP1 (Page 14) XDCDT DTC1D SWITCHING VLGO1 POWER...
  • Page 16: Printed Wiring Board -main Section

    D-F20 5-5. PRINTED WIRING BOARD — MAIN SECTION — 3 7 6 3 1 5 1 5 0 • Semiconductor Location (Side A) Ref. No. Location D301 D302 D303 D304 D408 D461 D801 IC61 OPTICAL PICK-UP BLOCK (DAX-23E) Q401...
  • Page 17 D-F20 • Refer to page 16 for Common note on Printed Wiring Board. 3 7 6 3 1 5 1 5 0 • Waveforms (CD play mode) 200mV/div 5µsec/div 0.7Vp-p 75kHz IC61 (XOUT) 1V/div 0.2µsec/div 3.6Vp-p S812 34nsec STEP 100mV/div 0.5µsec/div...
  • Page 18: Schematic Diagram -main Section (1/3)

    D-F20 5-6. SCHEMATIC DIAGRAM — MAIN SECTION (1/3) — • Refer to page 17 for Waveforms. 3 7 6 3 1 5 1 5 0 • Refer to page 21 for IC Block Diagrams. • Refer to page 16 for Common Note on Schematic Diagram.
  • Page 19: Schematic Diagram -main Section (2/3)

    D-F20 3 7 6 3 1 5 1 5 0 5-7. SCHEMATIC DIAGRAM — MAIN SECTION (2/3) — • Refer to page 17 for Waveforms. • Refer to page 21 for IC Block Diagrams. • Refer to page 16 for Common Note on Schematic Diagram.
  • Page 20: Schematic Diagram -main Section (3/3)

    D-F20 3 7 6 3 1 5 1 5 0 5-8. SCHEMATIC DIAGRAM — MAIN SECTION (3/3) — • Refer to page 17 for Waveforms. • Refer to page 22 for IC Block Diagrams. • Refer to page 16 for Common Note on Schematic Diagram.
  • Page 21: Ic Block Diagrams

    D-F20 3 7 63 1515 0 5-9. IC BLOCK DIAGRAMS IC1 TA2149BFN RF GND FM RF FM RF RF VCC FM IN AM RF AM L/CUT MIX OUT FM OSC AM OSC BUFF BUFF 1/1 OR OSC OUT LEVEL...
  • Page 22 D-F20 IC601 CXD3037R 3 7 63 1515 0 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103 102 101 100 99 98 97 96 95 94 93 92 91 ERROR...
  • Page 23 D-F20 3 7 63 1515 0 IC401 TB2125F 48 47 45 44 34 33 VREF VREF VLGO1 VCPU DCIN DCIN DCIN H BRIDGE 31 MGND1 VCPU DRIVER 1 CONTROL 30 RO1 VCPU2 PGND1 CHARGE VCC1 VCPU VCPU CHGON/OFF SUB VREF...
  • Page 24: Exploded Views

    D-F20 SECTION 6 EXPLODED VIEWS 3 7 63 1515 0 NOTE: • The mechanical parts with no reference The components identified by • Color Indication of Appearance Parts mark 0 or dotted line with mark number in the exploded views are not supplied.
  • Page 25: Cabinet (lower) Section

    D-F20 3 7 63 1515 0 6-2. CABINET (LOWER) SECTION CDM-3123EBA LCD1 L 13942296513 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-222-765-11 INSULATOR X-3380-753-1 CABINET (LOWER) SUB ASSY * 52 A-3021-498-A MAIN BOARD, COMPLETE...
  • Page 26: Cd Mechanism Deck Section (cdm-3123eba)

    D-F20 3 7 63 1515 0 6-3. CD MECHANISM DECK SECTION (CDM-3123EBA) M502 M501 L 13942296513 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No.
  • Page 27: Electrical Parts List

    D-F20 SECTION 7 MAIN ELECTRICAL PARTS LIST 3 7 63 1515 0 NOTE: • Due to standardization, replacements in • SEMICONDUCTORS The components identified by mark 0 or dotted line with mark the parts list may be different from the In each case, u : µ, for example:...
  • Page 28 D-F20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C319 1-164-156-11 CERAMIC CHIP 0.1uF C609 1-162-967-11 CERAMIC CHIP 0.0033uF 10% C350 1-115-156-11 CERAMIC CHIP C611 1-162-917-11 CERAMIC CHIP 15PF...
  • Page 29 D-F20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D301 8-719-404-50 DIODE MA111-TX 1-424-851-11 ANTENNA, FERRITE-ROD (AM) D302 8-719-404-50 DIODE MA111-TX 1-424-883-11 COIL (AM OSC) D303 8-719-404-50 DIODE MA111-TX...
  • Page 30 D-F20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-821-11 METAL CHIP 1/16W R308 1-216-845-11 METAL CHIP 100K 1/16W 1-216-827-11 METAL CHIP 3.3K 1/16W R317 1-216-857-11 METAL CHIP 1/16W...
  • Page 31 D-F20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R485 1-216-295-11 SHORT R814 1-216-833-11 METAL CHIP 1/16W R486 1-216-864-11 METAL CHIP 1/16W R816 1-216-829-11 METAL CHIP 4.7K 1/16W R500...
  • Page 32 D-F20 MAIN 3 7 63 1515 0 Ref. No. Part No. Description Remark VDR601 1-801-862-11 VARISTOR (CHIP TYPE) VDR602 1-801-862-11 VARISTOR (CHIP TYPE) < VIBRATOR > 1-781-142-11 FILTER, CERAMIC (10.7MHz) 1-760-130-11 VIBRATOR, CRYSTAL (75kHz) X601 1-795-101-21 VIBRATOR, CERAMIC (16.9MHz)
  • Page 33 D-F20 3 7 63 1515 0 MEMO L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 34 D-F20 3 7 63 1515 0 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.

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