Sony MDX-C670 Service Manual
Fm/am minidisc player; fm/mw/lw minidisc player
Hide thumbs
Also See for MDX-C670:
- Operating instructions manual (24 pages) ,
- Operating instructions manual (22 pages) ,
- Operating instruction (48 pages)
Advertisement
MDX-C670/C670RDS
SERVICE MANUAL
Refer to RM-X2S/X3S Service Manual (9-960-039-
∏) issued previously for information of remote
commander (RM-X2S) supplied with this set.
MD player section
Signal-to-noise ratio
90 dB
Frequency response
10 – 20,000 Hz
Wow and flutter
Below measurable limit
Tuner section
FM
Tuning range
MDX-C670 :
FM tuning interval :
50 kHz/200 kHz
switchable
87.5 – 108.0 MHz (at 50 kHz step)
87.5 – 107.9 MHz (at 200 kHz step)
MDX-C670RDS :
87.5 – 108.0 MHz
Aerial terminal
External antenna connector
Intermediate frequency
10.7 MHz
Usable sensitivity
10 dBf
Selectivity
75 dB at 400 kHz
Signal-to-noise ratio
62 dB (stereo),
65 dB (mono)
Harmonic distortion at 1 kHz
0.9% (stereo),
0.5% (mono)
Separation
35 dB at 1 kHz
Frequency response
30 – 15,000 Hz
Capture ratio
2dB
MICROFILM
Photo : MDX-C670RDS
Model Name Using Similar Mechanism
Base Mechanism Type
Optical Pick-up Name
SPECIFICATIONS
AM (MDX-C670)
Tuning range
MW/LW (MDX-C670RDS)
Tuning range
Antenna terminal
Intermediate frequency
Sensitivity
Power amplifier section
Outputs
Speaker impedance
Maximum power output 35 W × 4 (at 4 ohms)
FM/AM MINIDISC PLAYER
FM/MW/LW MINIDISC PLAYER
US Model
Canadian Model
E Model
MDX-C670
AEP Model
UK Model
MDX-C670RDS
MG-164K-138
KMS-241A/J2N
AM tuning interval :
9 kHz/10 kHz switchable
531 – 1,602 kHz (at 9 kHz step)
530 – 1,710 kHz (at 10 kHz step)
MW : 531 – 1,602 kHz
LW : 153 – 281 kHz
External antenna connector
10.71 MHz/450 kHz
AM, MW : 30 µV
LW : 50 µV
Speaker outputs
(sure seal connectors)
4 – 8 ohms
– Continued on next page –
MDX-C670
MDX-C670RDS
NEW
Advertisement
Related Manuals for Sony MDX-C670
Summary of Contents for Sony MDX-C670
- Page 1 (RM-X2S) supplied with this set. Model Name Using Similar Mechanism Base Mechanism Type MG-164K-138 Optical Pick-up Name KMS-241A/J2N SPECIFICATIONS MD player section AM (MDX-C670) Signal-to-noise ratio 90 dB Frequency response 10 – 20,000 Hz Tuning range AM tuning interval : Wow and flutter...
-
Page 2: Table Of Contents
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. -
Page 3: General
SECTION 2 This section is extracted from MDX-C670 instruction manual. GENERAL – 3 –... - Page 4 – 4 –...
- Page 5 – 5 –...
- Page 6 – 6 –...
-
Page 7: Disassembly
SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. FRONT PANEL Push the button (release). Remove the front panel of the arrow. COVER ASS’Y, PANEL (SUB) ASS’Y 2 cover ass’y 4 panel (sub) ass’y 3 five screws (PTT2.6 ×... - Page 8 1 two screws MECHANISM DECK (MG-164K-138) (PTT2.6 × 4) 2 mechanism deck (MG-164K-138) 1 eight screws (PTT2.6 × 8) MAIN BOARD 3 three screws (PTT2.6 × 6) (ground point) 1 two screws (PTT2.6 × 8) 2 heat sink 4 main board –...
- Page 9 SERVO BOARD 3 two screws (BVTT2 × 4) 3 two screws (BVTT2 × 4) 4 servo board 1 sensor flexible board (CN102) 2 flexible board (CN103) FLOAT BLOCK 5 Pushing an arrow A part, raise 2 MD cover ass’y the float block up ward at the 1 four screws (BVTT2 ×...
- Page 10 HOLDER ASS’Y 6 holder ass’y 5 washer (M) 1 spring (CHKG) 2 stop ring E (1.5) 3 lever (lock R) 1 spring (CHKG) 4 lever (lock L) 2 stop ring E (1.5) OPTICAL PICK-UP (MD) (KMS-241A/J2N) 6 bearing (SL) 4 screw (B2 ×...
- Page 11 MOTOR ASS’Y (M901, M902, M903), SENSOR BOARD 4 screw (P1.7 × 1.8) 9 two screws (P1.7 × 1.8) 5 bracket (SL) 2 two screws (2 × 8) 0 motor ass’y 6 motor ass’y (M901) (M902) 7 screw 3 sensor board (B2 ×...
-
Page 12: Electrical Adjustments
SECTION 4 ELECTRICAL ADJUSTMENTS 4. Adjust with the volume RV2 on TU1 so that the “FM” indica- TEST MODE tion turns to “FM0” indication on the display window. This set have the test mode function. In the test mode, FM Auto But, in case of already indicated “FM0”, turn the RV2 so that Scan/Stop Level and AM (MW) Auto Scan/Stop Level adjustments put out light “0”... - Page 13 SHUF1 Procedure: 1. Set to the test mode. (See page 12.) 2. Push the SOURCE button and set to AM (MDX-C670) or MW 3. Push the preset 10 button. (MDX-C670RDS). 4. Adjust RV1 on MAIN board so that the display indication is “15.8”.
- Page 14 Adjustment Location: – SET UPPER VIEW – RV1 AM (MW) AUTO SCAN/STOP LEVEL Adjustment RV2 FM AUTO SCAN/STOP LEVEL Adjustment RV4 FM STEREO SEPARATION Adjustment RV1 RDS S-METER Adjustment – 14 –...
-
Page 20: Exploded Views
SECTION 6 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 ! are may have some difference from the original are seldom required for routine service. - Page 21 (2) FRONT PANEL SECTION not supplied (KEY board) PL801 LCD801 PL802 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3373-544-1 WINDOW ASSY (C670) 3-011-081-01 PANEL (REAR) X-3373-545-1 WINDOW ASSY (C670RDS) * 63 3-010-427-01 HOLDER (LCD) 3-008-667-01 SPRING * 64 3-010-426-01 PLATE (LCD), LIGHT GUIDE 3-010-431-01 BUTTON (RELEASE) (RELEASE)
- Page 22 (3) MECHANISM DECK SECTION-1 (MG-164K-138) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 101 A-3309-894-A SERVO BOARD, COMPLETE * 110 3-919-280-01 LEVER (LOCK R) * 102 X-3369-440-1 CHASSIS ASSY, MD 3-919-281-01 SPRING (CHKG) 3-919-296-01 SPRING (FL), TENSION * 112 X-3369-441-1 COVER ASSY, MD 3-921-111-01 SPRING (FL2), TENSION...
- Page 23 (4) MECHANISM DECK SECTION-2 161 179 (MG-164K-138) M903 M901 M902 The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. Les composants identifiés par une marque ! sont critiques pour la sécurité.
-
Page 24: Electrical Parts List
SECTION 7 ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • SEMICONDUCTORS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark The components identified by mark In each case, u: µ, for example: parts list may be different from the parts speci- ! or dotted line with mark ! are fied in the diagrams or the components used on uA. - Page 25 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > R863 1-218-855-11 METAL GLAZE 2.2K 1/16W Q803 8-729-904-78 TRANSISTOR DTD113ZK < COMPOSITION CIRCUIT BLOCK > Q804 8-729-904-78 TRANSISTOR DTD113ZK Q805 8-729-106-60 TRANSISTOR 2SB1115A RB801 1-233-414-11 RES, CHIP NETWORK 4.7K (3216) Q806 8-729-026-53 TRANSISTOR 2SA1576A-T106-QR...
- Page 26 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-164-489-11 CERAMIC CHIP 0.22uF C206 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V (C670RDS) C207 1-126-791-11 ELECT 10uF 1-164-004-11 CERAMIC CHIP 0.1uF C208 1-164-161-11 CERAMIC CHIP 0.0022uF 10% 100V (C670RDS) C209 1-126-791-11 ELECT...
- Page 27 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C601 1-126-791-11 ELECT 10uF D401 8-719-034-42 DIODE MA4056-M (QZ) (C670RDS) C602 1-126-791-11 ELECT 10uF D501 8-719-017-62 DIODE MA8068-L-TX C603 1-126-791-11 ELECT 10uF D502 8-719-017-62 DIODE MA8068-L-TX C604 1-126-791-11 ELECT 10uF D503...
- Page 28 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-296-00 CONDUCTOR, CHIP (3216) Q701 8-729-900-53 TRANSISTOR DTC114EK < COIL > < RESISTOR > 1-414-146-31 INDUCTOR 2.2uH 1-216-037-00 METAL CHIP 1/10W 1-414-146-31 INDUCTOR 2.2uH 1-216-049-11 METAL GLAZE 1/10W 1-410-509-11 INDUCTOR 10uH...
- Page 29 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-065-00 METAL CHIP 4.7K 1/10W R402 1-216-057-00 METAL CHIP 2.2K 1/10W (C670: US, CND) (C670RDS) 1-216-081-00 METAL CHIP 1/10W R403 1-216-057-00 METAL CHIP 2.2K 1/10W (C670: E/C670RDS) (C670RDS) R101 1-216-061-00 METAL CHIP...
- Page 30 MAIN SENSOR SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R686 1-216-073-00 METAL CHIP 1/10W < VARIABLE RESISTOR > R702 1-216-097-00 METAL GLAZE 100K 1/10W R709 1-216-097-00 METAL GLAZE 100K 1/10W 1-223-591-11 RES, ADJ, METAL GLAZE 470K (C670RDS) R710 1-216-097-00 METAL GLAZE 100K...
- Page 31 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C106 1-135-181-21 TANTALUM CHIP 4.7uF 6.3V C350 1-107-826-11 CERAMIC CHIP 0.1uF C107 1-162-970-11 CERAMIC CHIP 0.01uF C351 1-104-852-11 TANTAL. CHIP 22uF C108 1-162-970-11 CERAMIC CHIP 0.01uF C352 1-107-826-11 CERAMIC CHIP 0.1uF C109...
- Page 32 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < COIL > R334 1-216-809-11 METAL CHIP 1/16W R335 1-216-815-11 METAL CHIP 1/16W L101 1-412-058-11 INDUCTOR CHIP 10uH R336 1-216-853-11 METAL CHIP 470K 1/16W L102 1-412-058-11 INDUCTOR CHIP 10uH R337 1-216-853-11 METAL CHIP 470K...
- Page 33 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R526 1-216-825-11 METAL CHIP 2.2K 1/16W ************** R527 1-216-825-11 METAL CHIP 2.2K 1/16W HARDWARE LIST R528 1-216-825-11 METAL CHIP 2.2K 1/16W ************** R529 1-216-825-11 METAL CHIP 2.2K 1/16W R530 1-216-825-11 METAL CHIP...
- Page 34 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark PARTS FOR INSTALLATION AND CONNECTIONS ************************************** 3-916-161-42 FRAME, FITTING 3-932-910-01 COLLAR (CDX) 3-914-406-01 SUPPORT (ND), FITTING (C670: US, CND) X-3370-076-1 SCREW ASSY (U. KEY), FITTING 3-388-078-01 KEY 7-682-560-04 SCREW +P 4X6 (C670: US, CND) X-3369-817-1 BRACKET ASSY (EXCEPT C670: E) X-3370-077-1 SCREW ASSY (AE.
- Page 35 MDX-C670/C670RDS Sony Corporation 97A0581-1 9-925-530-11 Personal & Mobile Communication Company Printed in Japan © 1997. 1 – 50 – Published by Quality Assurance Dept.
- Page 36 MDX-C670/C670RDS US Model Canadian Model SERVICE MANUAL E Model MDX-C670 AEP Model UK Model MDX-C670RDS SUPPLEMENT-1 File this supplement with the service manual. Subject: 1. IC BLOCK DIAGRAMS 2. BLOCK DIAGRAMS 3. IC PIN FUNCTION DESCRIPTION...
-
Page 37: Ic Block Diagrams
1. IC BLOCK DIAGRAMS – MD Section – IC101 PCM1718E-T1 CONTROL CLKO DGND INPUT MUTE INTERFACE LRCIN MODE CONTROL RSTB DIGITAL FORMAT FILTER BCKIN NOISE SHAPER ZERO 5 LEVEL 5 LEVEL LOWPASS LOWPASS FILTER FILTER CMOS CMOS D/C L D/C R VOUTR VOUTL AGND... - Page 38 IC302 CXA2523R 43 42 USROP – RF AGC – USRC RFA1 BPF3T RFA2 PEAK3T – HLPT –1 – – –2 – CFST PTGR TEMP PEAK – –2 – BOTTOM 36 BOTM – –1 GRVA 35 ABCD 34 FE 33 AUX –...
- Page 39 IC303 BH6511FS-E2 INTERFACE INTERFACE CHARGE PREDRIVE PREDRIVE PUMP. PREDRIVE PREDRIVE INTERFACE INTERFACE IC305 BA6287F OUT1 OUT2 DRIVER DRIVER VREF CONTROL LOGIC POWER SAVE – 4 –...
- Page 40 – MAIN Section – IC31 BU2624F-E2 IC331 NJM4558V-TE2 IC401 TDA7330BD-013TR (MDX-C670RDS) XOUT A OUT REFERENCE PHASE 15 14 DIVIDER B OUT DETECT – A IN– + – PHASE DIFF COSTAS A IN+ B IN– 2nd ORDER 8th ORDER DECODER DECODER LOOP ANTIALIAS SC-BANDPASS...
- Page 41 MDX-C670/C670RDS 2. BLOCK DIAGRAMS 2-1. MD Section SERVO BOARD CN101 L-CH DADT DATA VOUTL MDRFO MDRFI R-CH ABCD ABCD LRCK LRCK VOUTR ADFM ADIN PEAK HOLD XBCK AUX2 AGCI Q301 • SIGNAL PATH FS256 PEAK PEAK : MD + 3.4V...
- Page 42 MDX-C670/C670RDS 2-2. MAIN/DISPLAY Section CNJ351 MAIN BOARD ANT + B BUS AUDIO IN • SIGNAL PATH : MD AUXIN R FNTO1 + 5V REG. LINE OUT FRONT : FM AUXIN L FNTO2 CN651(1/2) MDIN L REO1 SERVO LINE OUT REAR...
- Page 43 Select whether Emphasis signal is output from pin or UNILINK EMPHSEL “H”: Output from pin “L”: Output from both pin and UNILINK BUS ON “BUS ON” input pin of SONY Bus LOCK Output of CLV LOCK status in TEST mode “H”: LOCK “L”: UNLOCK SQSY Input of “SUBQ Sync”...
- Page 44 BUSON Output of bus ON control “L”: SONY BUS communication is active SYSRST Output of system reset control “L”: SONY BUS slave micro computer is reset AMPON Output of power amplifier ON control TUNON Output of tuner ON control “H”: Active (Not used in this set) (open)
- Page 45 Pin No. Pin Name Function Not used (open) PW SEL Power select initial setting RCIN1 Input of rotary commander TEST Not used (open) AMPMUTE Power AMP mute control BEEP Output of buzzer control MUTE Output of system mute control VOLCE Output of electronic volume serial chip enable VOLSO Output of electronic volume serial data...
- Page 46 PLL serial chip enable output pin Bus request signal output pin LINK-OFF Link-off signal output pin (for SONY BUS) Serial clock input pin (for SONY BUS) Serial data input pin (for SONY BUS) Serial data output pin (for SONY BUS) –...
- Page 47 MDX-C670/C670RDS Pin No. Pin Name Function – – Connected to the GND – – Connected to the GND TU-ON Tuner system power supply control pin – – Not used (open) SEEK.OUT Seek signal output pin AM.ON AM power supply control pin (Not used in this set) (open) FM.ON...