Sony CDX-3170 Service Manual
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Sony CDX-3170 Service Manual

Sony CDX-3170 Service Manual

Fm/am compact disc player
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SERVICE MANUAL
CD player section
System
Compact disc digital audio
system
Signal-to-noise ratio
90 dB
Frequency response
10 - 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
87.5 - 107.9 MHz
Antenna terminal
External antenna connector
Intermediate frequency
10.7 MHz
Usable sensitivity
13 dBf
Selectivity
70 dB at 400 kHz
Signal-to-noise ratio
62 dB (stereo),
65 dB (mono)
Harmonic distortion at 1 kHz
1.0% (stereo),
0.5% (mono)
Separation
33 dB at 1 kHz
Frequency response
30 - 15,000 Hz
Capture ratio
2 dB
AM
Tuning range
530 - 1,710 kHz
Antenna terminal
External antenna connector
Intermediate frequency
450 kHz
32 µV
Sensitivity
MICROFILM
CDX-3170
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name

SPECIFICATIONS

Power amplifier section
Outputs
Speaker impedance
Maximum power output
General
Outputs
Tone controls
Power requirements
Dimensions
Mounting dimensions
Mass
Supplied accessories
Design and specifications are subject to change without
notice.
FM/AM COMPACT DISC PLAYER
– 1 –
E Model
CDX-2180
MG-363X-121
KSS-521A
Speaker outputs
(sure seal connectors)
4 - 8 ohms
35 W × 4 (at 4 ohms)
Line outputs (2)
Power antenna relay
control/Power amplifier
control lead
Bass ± 10 dB at 100 Hz
Treble ± 10 dB at 10 kHz
12 V DC car battery
(negative ground)
Approx. 188 × 58 × 180 mm
(w/h/d)
Approx. 183 × 53 × 163 mm
(w/h/d)
Approx. 1.3 kg
Parts for installation and
connections (1 set)

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  • Page 1: Specifications

    CDX-3170 SERVICE MANUAL E Model Model Name Using Similar Mechanism CDX-2180 CD Drive Mechanism Type MG-363X-121 Optical Pick-up Name KSS-521A SPECIFICATIONS CD player section Power amplifier section System Compact disc digital audio Outputs Speaker outputs system (sure seal connectors) Signal-to-noise ratio...

  • Page 2: Table Of Contents

    5-1. Chassis Section ..............40 THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. 5-2. Front Panel Section ............41 REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE 5-3. CD Mechanism Section (1) ..........42 PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR 5-4.
  • Page 6 – 6 –...
  • Page 7 – 7 –...

  • Page 8: Disassembly

    SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. COVER ASSY 2 claw 1 PTT 2.6x6 5 cover assy 3 claw 4 claws 2-2. FRONT PANEL ASSY 2 front panel assy 1 Push the RELEASE button –...

  • Page 9: Sub Panel

    2-3. SUB PANEL 3 sub panel 1 PTT 2.6x6 2 PTT 2.6x6 2-4. CD MECHANISM BLOCK 1 PTT 2.6x6 6 PTT 2.6x6 8 bracket (MD) 2 PTT 2.6x6 5 CD mechanism block 7 PTT 2.6x6 4 PTT 2.6x6 3 PTT 2.6x6 –...

  • Page 10: Main Board

    2-5. MAIN BOARD 1 PTT 2.6x6 2 screws (+BTT) 3 MAIN board 2-6. HEAT SINK 3 heat sink 1 PTT 2.6x8 2 PTT 2.6x8 – 10 –...

  • Page 11: Chassis (T) Sub Assy

    2-7. CHASSIS (T) SUB ASSY 3 P 2x3 2 P 2x3 4 chassis (T) sub assy 1 Unsolder the lead wires. white black 2-8. LEVER ASSY 5 guide (disc) 6 lever (R) assy 3 tension spring (LR) 7 lever (L) assy 1 PS 2x4 2 DISC IN SW board 4 claws...

  • Page 12: Servo Board

    2-9. SERVO BOARD 6 PS 2x4 5 PS 2x4 2 CN2 1 CN3 3 P 2x3 7 SERVO board 4 loading motor assy 2-10. ROLLER ASSY • When installing, take note of the positions arm (roller) and washers. (Fig. 1) washer washers washer...

  • Page 13: Chassis (Op) (O/S) Assy

    2-11. CHASSIS (OP) (O/S) ASSY 7 chassis (OP) (O/S) assy 8 compression spring (FL) 1 tension spring (angle) 9 compression spring (FL) 2 tension spring (KR1) 5 Fit lever (D) in the direction of the arrow. 6 Turn loading ring in the direction of the arrow.

  • Page 14: Electrical Adjustments

    SECTION 3 ELECTRICAL ADJUSTMENTS 0 dB = 1 µV TUNER SECTION FM Center Adjustment Setting : SOURCE button : FMI Cautions during repair When the tuner unit is defective, replace it by a new one be- FM RF signal cause its internal block is difficult to repair. dummy generator antenna...
  • Page 15 FM SENS/IF Adjustment AM VT Voltage Adjustment Setting : Setting : SOURCE button : FMI SOURCEnMODE button : AM FM RF signal AM RF signal level level dummy dummy antenna generator antenna generator meter meter antenna antenna terminal terminal 50 Ω 30 Ω...
  • Page 16 AM SENS Adjustment Setting : SOURCEnMODE button : AM AM RF signal level dummy antenna generator meter antenna terminal 30 Ω 15 pF 10 k Ω 60 pF – LINE OUT REAR Procedure : Adjust for a maximum reading on level meter. T6, T7 530 kHz Adjustment Location : See page 17.
  • Page 17 Adjustment Location : tuner assy (TU1) –tuner assy (TU1) (conductor side)– ’ ‘ FM VT SEEK FM CENTER AM VT (at FM AUTO SCAN/ STOP LEVEL ADJ, (Both side of R32.) add the +5 Vdc. AM VT AM/AUTO AM SENS VOLTAGE SCAN/STOP AM IF...

  • Page 18: Cd Section

    Focus Gain Adjustment (Coarse adjustment) CD SECTION This adjustment is not required unless the following parts are replaced: • Optical pick-up Note: • 1. CD Block basically constructed to operate without adjustment. Therefore, check each item in order given. Procedure: 2.

  • Page 19: Diagrams

    SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTION • IC800 µPD17017GF-B28-3B9 (SYSTEM CONTROL) Pin No. Pin Name Pin Description CD SO/VOL DATA CD serial data/electric volume serial data output pin VOL CLK Electric volume serial clock output pin SENSE CD sens signal input pin ST/MONO FM/AM select pin Accessory power (ACC) voltage detection pin...
  • Page 20 Pin No. Pin Name Pin Description SK IN Not used. DK IN Not used. SELF SW SELF SW input/LCD segment signal output pin IN SW DISC IN SW input/LCD segment signal output pin L SW LIMIT SW input/LCD segment signal output pin D SW DOWN SW input/LCD segment signal output pin KEY-RETURN...

  • Page 21: Circuit Boards Location

    4-2. CIRCUIT BOARDS LOCATION • Waveforms (MODE:PLAY) DISC IN SW board SUB board Approx. 620mVp-p tuner assy (FEO) (TU1) LIMIT SW board 1.2Vp-p DISPLAY SUB board #¡ (RFO) Approx. 200mVp-p $™ (TEO) 2.6Vp-p DISPLAY board MAIN board 7.6µsec (MDP) LOAD SW board SERVO board 5.8Vp-p 22.7µsec...

  • Page 22: Printed Wiring Boards -Cd Mechanism Section

    CDX-3170 4-3. PRINTED WIRING BOARDS — CD MECHANISM SECTION — (Page 31) • Semiconductor Location Ref. No. Location Note: • Y : parts extracted from the conductor side. • b : Pattern from the side which enables seeing. – 23 –...
  • Page 23 CDX-3170 4-4. SCHEMATIC DIAGRAM — CD MECHANISM SECTION — • Refer to page 22 for Waveforms and Note and page 37 for IC Block Diagrams. (Page 33) – 25 – – 26 –...

  • Page 24: Printed Wiring Boards -Display Section

    CDX-3170 4-5. PRINTED WIRING BOARDS — DISPLAY SECTION — (Page 31) • Semiconductor Location Ref. No. Location Ref. No. Location D851 B-12 D863 D852 C-12 D864 D853 C-13 D865 D854 C-13 D868 D855 A-13 D869 D856 D870 D857 D872 B-12...

  • Page 25: Schematic Diagram -Display Section

    CDX-3170 4-6. SCHEMATIC DIAGRAM — DISPLAY SECTION — (Page 35) Note: • All capacitors are in µF unless otherwise noted. pF: µµF • C : panel designation. 50 WV or less are not indicated except for electrolytics • Voltage is dc with respect to ground under no-signal and tantalums.

  • Page 26: Printed Wiring Board -Main Section

    CDX-3170 4-7. PRINTED WIRING BOARD — MAIN SECTION — ASSY • Semiconductor Location Ref. No. Location Ref. No. Location D400 D-12 IC400 D401 D-10 IC700 D411 B-11 IC800 D638 H-12 IC900 D803 H-10 D804 H-10 Q101 B-12 D805 H-10 Q102...
  • Page 27 CDX-3170 4-8. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 36 for Note and page 39 for IC Block Diagrams. (Page ASSY – 33 – – 34 –...

  • Page 28: Schematic Diagram -Main Section (1/2)

    CDX-3170 4-9. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — Note: (Page 29) • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. • All resistors are in Ω and W or less unless otherwise specified.

  • Page 29: Ic Block Diagrams

    • IC Block Diagrams IC1 CXD2507AQ SERVO AUTO DATA SEQUENCER XRST SENS SUB CODE MUTE PROCESSOR INTERFACE SQCK DIGITAL LOCK SQSO TEST EXCK SBSO FILO SCOR DIGITAL FILI DEMODULATOR WFCK EMPH AVSS CLTV ASYMMETRY AVDD CORRECTOR DIGITAL DOUT INTERFACE BIAS ERROR ASYI FSTT...
  • Page 30 IC2 CXA1782BQ 27 26 25 LEVEL S MIRR SENS RF IV AMP1 DFCT C.OUT XRST RF IV AMP2 FE BIAS IIL DATA REGISTER INPUT SHIFT REGISTER DATA ADDRESS DECODER OUTPUT DECODER TOG1-3 FS1-4 TG1-2 TM1-7 PS1-4 F IV AMP BAL1-3 FZC COMP E IV AMP TE AMP...
  • Page 31 IC400 CXA1946AQ-T6 35 34 30 29 28 27 26 24 FNTO1 VOLUME VOLUME LOUD TONE FADER 8dB STEP 1dB STEP 23 REO1 GAIN12 VCTBUFF GAIN11 IN14 VCTBUFF IN13 IN12 VCTBUFF IN11 LATCH 22 CE LATCH CONTROL 21 CLK 20 DGND ZCDET 19 GND SHIFT...

  • Page 32: Exploded Views

    SECTION 5 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • Color Indication of Appearance P ar ts The components identified b number in the e xploded vie ws are not supplied. Example : mark ! or dotted line with mark. •...

  • Page 33: Front Panel Section

    5-2. FRONT PANEL SECTION not supplied (DISPLAY SUB board) CNP802 LCD800 not supplied (DISPLAY board) not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-009-376-01 BUTTON (SEEK/AMS) * 61 3-009-335-02 PLATE (LCD), LIGHT GUIDE 3-009-332-01 BUTTON (+/-) * 62 3-009-337-01 HOLDER (LCD) 3-009-329-01 BUTTON (RELEASE)

  • Page 34: Cd Mechanism Section (1)

    5-3. CD MECHANISM SECTION (1) (MG-363X-121) M903 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 1-659-836-11 DISC IN SW BOARD 3-931-902-03 ARM (ROLLER) * 102 A-3291-816-B CHASSIS (T) SUB ASSY 3-936-756-01 ROLLER (D) 3-931-909-01 SPRING (LR), TENSION 3-321-393-01 WASHER, STOPPER X-3371-501-1 LEVER (L) ASSY * 113...

  • Page 35: Cd Mechanism Section (2)

    5-4. CD MECHANISM SECTION (2) (MG-363X-121) not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-931-893-01 ARM, CHUCKING 3-019-805-01 SPRING (KF1), TENSION 3-931-897-01 DAMPER (T) * 159 A-3291-677-G CHASSIS (M) ASSY 3-931-879-02 LEVER (D) 3-931-883-01 SPRING (TR), TENSION * 154 3-913-404-11 RETAINER (DISC) 3-931-881-01 LEVER (LOCK)

  • Page 36: Cd Mechanism Section (3)

    5-5. CD MECHANISM SECTION (3) (MG-363X-121) M901 M902 The components identified b mark ! or dotted line with mark. ! are critical f or saf ety . Replace only with part number specified. Ref. No. Part No. Description Remark Ref. No. Part No.

  • Page 37: Electrical Parts List

    SECTION 6 DISC IN SW DISPLAY ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stoc ked since The components identified b the par ts list ma y be diff erent fr om the the y are seldom required f or r outine ser vice .
  • Page 38 DISPLAY DISPLAY SUB LIMIT SW LOAD SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R865 1-249-429-11 CARBON 1/4W 1-659-837-11 LOAD SW BOARD R871 1-216-053-00 METAL CHIP 1.5K 1/10W *************** R872 1-216-057-00 METAL CHIP 2.2K 1/10W R873 1-216-061-00 METAL CHIP...
  • Page 39 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C224 1-124-234-00 ELECT 22uF C802 1-163-117-00 CERAMIC CHIP 100PF C225 1-124-234-00 ELECT 22uF C803 1-162-282-31 CERAMIC 100PF C226 1-163-235-11 CERAMIC CHIP 22PF C804 1-163-234-11 CERAMIC CHIP 20PF C227 1-164-161-11 CERAMIC CHIP 0.0022uF 10%...
  • Page 40 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D909 8-719-921-74 DIODE MTZN-10A Q901 8-729-822-84 TRANSISTOR 2SB1202FAST D911 8-719-109-89 DIODE RD5.6ESB2 Q903 8-729-027-43 TRANSISTOR DTC114EKA-T146 D912 8-719-109-93 DIODE RD6.2ESB2 Q904 8-729-620-06 TRANSISTOR 2SC3052-EF D913 8-719-049-38 DIODE 1N5404TU Q905 8-729-620-06 TRANSISTOR 2SC3052-EF D914...
  • Page 41 MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R224 1-216-085-00 METAL CHIP 1/10W R903 1-249-421-11 CARBON 2.2K 1/4W R231 1-216-061-00 METAL CHIP 3.3K 1/10W R904 1-249-421-11 CARBON 2.2K 1/4W R401 1-247-895-00 CARBON 470K 1/4W R905 1-216-049-11 RES,CHIP 1/10W...
  • Page 42 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-164-232-11 CERAMIC CHIP 0.01uF JR14 1-216-296-00 SHORT 1-163-989-11 CERAMIC CHIP 0.033uF JR15 1-216-296-00 SHORT 1-164-232-11 CERAMIC CHIP 0.01uF JR16 1-216-296-00 SHORT 1-163-989-11 CERAMIC CHIP 0.033uF JR17 1-216-296-00 SHORT 1-164-004-11 CERAMIC CHIP 0.1uF JR18...
  • Page 43 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-073-00 METAL CHIP 1/10W MISCELLANEOUS 1-216-085-00 METAL CHIP 1/10W *************** 1-216-085-00 METAL CHIP 1/10W 1-216-077-00 METAL CHIP 1/10W 1-769-786-91 CORD (WITH CONNECTOR) (POWER) 1-216-081-00 METAL CHIP 1/10W 1-659-880-11 MOTOR FLEXIBLE BOARD ! 210 8-820-010-03 PICK-UP, OPTICAL KSS-521A/Q-NP...
  • Page 44 CDX-3170 Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS *************************************** 3-014-370-21 FRAME, FITTING X-3366-405-1 SCREW ASSY (EXP), FITTING 3-934-325-01 SCREW (+K 5X8 TP) 3-388-078-01 KEY 1-769-786-91 CORD (WITH CONNECTOR) (POWER) Sony Corporation 98C0423-1 9-925-921-11 Personal & Mobile Communication Company Printed in Japan C1998.

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