Sony CDX-4170R Service Manual
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Sony CDX-4170R Service Manual

Sony cdx-4170r fm/mw/lw 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 - 108 MHz
Aerial terminal
External aerial connector
Intermediate frequency
10.7 MHz
Usable sensitivity
8 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
60 dB (stereo),
65 dB (mono)
Harmonic distortion at 1 kHz
0.8% (stereo),
0.5% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 - 15,000 Hz
Capture ratio
2 dB
MICROFILM
CDX-4170R
Model Name Using Similar Mechanism
CD Drive Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
MW/LW
Tuning range
Aerial terminal
Intermediate frequency 10.71 MHz / 450 kHz
Sensitivity
Power amplifier section
Outputs
Speaker impedance
Maximum power output 35 W × 4 (at 4 ohms)
FM/MW/LW COMPACT DISC PLAYER
– 1 –
AEP Model
UK Model
NEW
MG-363X-121
KSS-520A
MW : 531 - 1,602 kHz
LW : 153 - 281 kHz
External aerial connector
MW : 30 µV
LW : 35 µV
Speaker outputs
(sure seal connectors)
4 - 8 ohms
– Continued on next page –

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  • Page 1 CDX-4170R SERVICE MANUAL AEP Model UK Model Model Name Using Similar Mechanism CD Drive Mechanism Type MG-363X-121 Optical Pick-up Name KSS-520A SPECIFICATIONS CD player section MW/LW System Compact disc digital audio system Tuning range MW : 531 - 1,602 kHz...

  • Page 2: Service Note

    Therefore, when checking the laser diode emission, observe THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. from more than 30 cm away from the objective lens. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
  • Page 11 – 12 –...
  • Page 12 – 13 –...

  • Page 13: Section 2 Disassembly

    SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. COVER ASSY 2 claw 1 PTT 2.6x8 5 cover assy 4 claws 3 claw 2-2. FRONT PANEL ASSY 2 front panel assy 1 Push the RELEASE button. –...

  • Page 14: Sub Panel

    2-3. SUB PANEL 3 sub panel 1 PTT 2.6x6 2 PTT 2.6x6 2-4. CD MECHANISM BLOCK 1 PTT 2.6x8 6 PTT 2.6x5 8 bracket (M/D) 2 PTT 2.6x8 5 CD mechanism block 7 PTT 2.6x5 4 CNJ701 3 PTT 2.6x5 –...

  • Page 15: Main Board

    2-5. MAIN BOARD 1 PTT 2.6x8 2 ground point screws 3 MAIN board 2-6. HEAT SINK 3 heat sink 1 PTT 2.6x8 2 PTT 2.6x8 – 16 –...

  • Page 16: 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 17: Servo Board

    2-9. SERVO BOARD 6 PS 2x5 7 bracket (driver) 8 sheet (driver) 5 PS 2x4 2 CN2 1 CN3 3 P 2x3 9 SERVO board 4 loading motor assy 2-10. ROLLER ASSY • When installing, take note of the positions arm (roller) and washers.

  • Page 18: 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 19: Test Mode

    SECTION 3 ELECTRICAL ADJUSTMENTS TEST MODE FM Auto Scan/Stop Level Adjustment Setting : This set have the test mode function. In the test mode, FM Auto D-BASS switch : OFF Scan/Stop Level and MW Auto Scan/Stop Level adjustments can SOURCE button : FM be performed easier than it in ordinary procedure.
  • Page 20 FM Noise Focus Adjustment FM RDS S-Meter Adjustment Setting : Setting : D-BASS switch : OFF D-BASS switch : OFF SOURCE button : FM SOURCE button : FM FM RF signal FM RF signal generator generator level meter antenna antenna 10 k Ω...
  • Page 21 MW Auto Scan/Stop Level Adjustment Adjustment Location : tuner unit (TU101) Setting : D-BASS switch : OFF – set upper view – SOURCE n MODE button : MW 30 Ω 15 pF 65 pF AM RF signal generator AM dummy antenna (50 Ω...
  • Page 22 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 23 SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTION Pin No. Pin Name Pin Description • IC501 MN1886426SD (SYSTEM CONTROL) — Power supply (+5 V) Pin No. Pin Name Pin Description AVDD — Power supply for AD conversion input. (+5 V) F OK Focus signal detection input AVREF+ —...
  • Page 24 CDX-4170R 4-2. BLOCK DIAGRAM ELECTORONIC VOLUME OPTICAL PICK-UP D/A CONVERTER RF AMP, SERVO CONTROL DIGITAL SIGNAL PROCESSOR DDBB KSS-520A IC303 IC701 IC702 LFOUT 35 PD1 14 RF PCMD 3 DI DOUT 6 DI LTOUT LSOUT LSIN LFIN (FRONT) R-CH TONE...

  • Page 25: Circuit Boards Location

    4-3. CIRCUIT BOARDS LOCATION DISC IN SW board SUB board tuner unit LIMIT SW board DISPLAY SUB board DISPLAY board MAIN board LOAD SW board SERVO board – 28 –...
  • Page 26 • Waveforms (MODE:PLAY) Approx. 620mVp-p (FEO) 1.2Vp-p #¡ (RFO) Approx. 200mVp-p $™ (TEO) 2.6Vp-p 7.6µsec (MDP) 5.8Vp-p 22.7µsec @º (LRCK) 5.7Vp-p 474nsec @™ (BCK) Note: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics 3.2Vp-p and tantalums.

  • Page 27: Ic Block Diagrams

    • IC Block Diagrams IC1 CXD2507AQ SERVO AUTO SEQUENCER DATA 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 28 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 29 IC101 TB2114F IC701 SM5852ES-E2 24 23 21 20 14 13 LRCI DB/DS INPUT RIPPLE BCKI MOD2 INTERFACE DIGITAL FILTER – – MOD1 SIGNAL PROCESSOR SYSTEM SEEK/RECP SEEK/RECP CLOCK 4BIT LRCO SEQUENTIAL SWALLOW MODULAS RSTN OUTPUT BCKO CONTROL COUNTER PRESCALER INTERFACE TESTN DOUT MUTE...
  • Page 30 IC702 SM5877AM-E2 ATCK ATTENUATION COUNTER MUTE MODE FILTER PROCESSOR & DEEN ATTENUATION PROCESSOR RSTN NOISE SHAPER TIMING DVSS CONTROL PROCESSOR BLOCK BCKI INPUT INTERFACE XVSS DVDD PWN DATA LRCI PRODUCE BLOCK TSTN XVDD MUTE AVDDR AVDDL AVSS IC303 LC75374E LFIN –...

  • Page 31: Section 5 Exploded Views

    SECTION 5 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so • Hardware (# mark) list and accessories number in the exploded views are not supplied. they may have some difference from the and packing materials are given in the •...

  • Page 32: Front Panel Section

    5-2. FRONT PANEL SECTION not supplied (DISPLAY board) not supplied (DISPLAY SUB board) CNP802 not supplied LCD801 not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 62 3-009-337-01 HOLDER (LCD) 3-009-376-01 BUTTON (SEEK/AMS) 3-009-332-01 BUTTON (+/-) 3-009-339-01 KNOB (D-BASS) 3-009-329-01 BUTTON (RELEASE) * 64...
  • Page 33 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 34 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 3-931-883-01 SPRING (TR), TENSION 3-931-879-02 LEVER (D) * 154 3-913-404-11 RETAINER (DISC)
  • Page 35 5-5. CD MECHANISM SECTION (3) (MG-363X-121) M901 M902 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 * 201...

  • Page 36: Electrical Parts List

    SECTION 6 DISC IN SW DISPLAY ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by mark ! or dotted line with mark. the parts list may be different from the they are seldom required for routine service.
  • Page 37 DISPLAY DISPLAY SUB LIMIT SW LOAD SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R828 1-216-041-00 METAL CHIP 1/10W 1-659-837-11 LOAD SW BOARD R829 1-216-049-11 RES, CHIP 1.0K (2012) *************** R830 1-216-049-11 RES, CHIP 1.0K (2012) R831...
  • Page 38 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C144 1-163-024-00 CERAMIC CHIP 0.018uF C370 1-164-506-11 CERAMIC CHIP 4.7uF C145 1-163-038-00 CERAMIC CHIP 0.1uF C501 1-163-038-00 CERAMIC CHIP 0.1uF C146 1-164-232-11 CERAMIC CHIP 0.01uF C502 1-163-235-11 CERAMIC CHIP 22PF C147 1-164-161-11 CERAMIC CHIP...
  • Page 39 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark CNP501 1-764-422-11 PLUG, CONNECTOR 12P IC302 8-759-490-48 IC HA13158 CNP901 1-774-701-11 PIN, CONNECTOR 16P IC303 8-759-487-82 IC LC75374E IC501 8-759-494-45 IC MN1886426SD < DISCHARGE GAP > IC701 8-759-473-70 IC SM5852FS-E2 IC702 8-759-364-34 IC SM5877AM...
  • Page 40 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > R502 1-216-049-11 RES, CHIP 1.0K (2012) R503 1-216-057-00 METAL CHIP 2.2K 1/10W R101 1-216-065-00 METAL CHIP 4.7K 1/10W R504 1-216-049-11 RES, CHIP 1.0K (2012) R102 1-216-097-00 RES, CHIP 100K...
  • Page 41 MAIN SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R711 1-216-001-00 METAL CHIP 1/10W 1-164-004-11 CERAMIC CHIP 0.1uF R712 1-216-057-00 METAL CHIP 2.2K 1/10W 1-126-206-11 ELECT CHIP 100uF 6.3V R713 1-216-065-00 METAL CHIP 4.7K 1/10W 1-135-259-11 TANTAL.
  • Page 42 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark JR10 1-216-296-00 SHORT 1-216-073-00 METAL CHIP 1/10W JR11 1-216-296-00 SHORT 1-216-009-00 METAL CHIP 1/10W JR12 1-216-296-00 SHORT 1-216-119-00 METAL CHIP 820K 1/10W JR13 1-216-296-00 SHORT 1-216-119-00 METAL CHIP 820K 1/10W JR14...
  • Page 43 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-659-834-11 SUB BOARD PARTS FOR INSTALLATION AND CONNECTIONS ********** *************************************** < CONNECTOR > 3-916-161-31 FRAME ASSY 3-386-828-01 SCREW, FITTING 1-770-347-21 CONNECTOR, FPC 6P 3-349-410-01 BUSHING 3-388-078-01 KEY ************************************************************* 1-776-527-11 CORD (WITH CONNECTOR) (ISO) (POWER) MISCELLANEOUS 1-465-459-21 ADAPTOR, ANTENNA...
  • Page 44 CDX-4170R Sony Corporation 98A047542-1 9-925-693-11 Personal & Mobile Communication Company Printed in Hungary C1998. 1 – 64 – Published by Quality Assurance Dept.

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