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CDX-C680/C780 SERVICE MANUAL US Model Ver 1.1 2001. 08 Photo : CDX-C680 Model Name Using Similar Mechanism SPECIFICATIONS CD Drive Mechanism Type MG-363S-121 Optical Pick-up Name KSS-520A AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC DISTORTION 17 watts per channel minimum continuous average power into 4 ohms, 4 channels driven from 20 Hz to 20 kHz with no more than 1 % total harmonic distortion.
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THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. breakdown because of the potential difference generated by the REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE charged electrostatic load, etc. on clothing and the human body. PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR During repair, pay attention to electrostatic breakdown and also use IN SUPPLEMENTS PUBLISHED BY SONY.
TABLE OF CONTENTS 1. GENERAL Location of Controls ..............4 Getting Started ................. 4 Setting the Clock ..............5 CD Player ................5 Radio ..................8 Other Functions ............... 9 CD/MD Unit ................11 DSP ..................14 TV/Video ................17 Connections ................
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SECTION 1 GENERAL This section extracted from CDX-C780's instruction manual. – 4 –...
2-3. MECHANISM BLOCK 8 mechanism block 5 PTT 2.6x6 7 CN401 3 claws 4 sub panel assy 2 PTT 2.6x6 6 PTT 2.6x6 1 PTT 2.6x6 2-4. SUB PANEL ASSY 1 PTT 2.6x6 3 EL inverter unit 2 CN602 6 CN801 5 claw 4 PTT 2.6x6 7 sub panel assy...
2-7. CHASSIS (T) SUB ASSY 1 P 2x3 2 P 2x3 3 chassis (T) sub assy 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 –...
2-11. CHASSIS (OP) (O/S) ASSY 6 chassis (OP) (O/S) assy 8 compression spring (FL) 1 tension spring (angle) 7 compression spring (FL) 4 Fit lever (D) in the direction of the arrow. 5 Turn loading ring in the direction of the arrow. 3 damper (T) 2 damper (T) 2-12.
SECTION 3 ELECTRICAL ADJUSTMENTS CD SECTION FM Auto Scan/Stop Level Adjustment Setting : CD section adjustments are done automatically in this set. SOURCE button : FM 0 dB = 1 µV TUNER SECTION FM RF signal Cautions during repair generator When the tuner unit is defective, replace it by a new one antenna terminal...
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Ver 1.1 FM Stereo Separation Adjustment (WIDE) FM Stereo Separation Adjustment (NARROW) Setting : Setting : SOURCE button : FM SOURCE button : FM FM RF signal FM RF signal generator generator level meter level meter antenna antenna terminal 10 k Ω terminal 10 k Ω...
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AM Auto Scan/Stop Level Adjustment Adjustment Location : tuner unit (TU10) Setting : SOURCE n MODE button : AM –set upper view– 30 Ω 15 pF 65 pF AM RF signal generator AM dummy antenna(50 Ω ) TU10 antenna terminal Carrier frequency : 1000 kHz 30% amplitude AM AUTO SCAN/...
SECTION 4 DIAGRAMS 4-1. IC PIN DESCRIPTIONS • IC501 CXD2548R (DIGITAL SERVO, DIGITAL SIGNAL PROCESSOR) (SERVO BOARD) Pin No. Pin Name Pin Description SYSM System mute input (Not used.) RMUT1 R-ch, “0” detection output. (“H” : ON, “L” : OFF) (Not used.) LMUT2 L-ch, “0”...
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Pin No. Pin Name Pin Description ASY.I Asymmetry comparate voltage input ASY.O EFM full-swing output (“L” : VSS, “H” : VDD) Center voltage input Focus error signal input Sled error signal input Tracking error signal input Center error signal input RFDC RF signal input Condenser connection pin for LPF time constant of RF signal.
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Pin No. Pin Name Pin Description AVSS2 — R-ch, Analog GND. ROUT2 R-ch, LINE output. (Not used.) AIN2 R-ch, OP amplifier input. (Not used.) AOUT2 R-ch, Analog output. (Not used.) AVDD2 — R-ch, Analog power supply. AVSS2 — R-ch, Analog GND. VSS0 —...
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• IC501 MB90574PFV-G-123-BND (SYSTEM CONTROL) (MAIN BOARD) Pin No. Pin Name Pin Description SEKOUT SEEK OUT output AF-SEEK AF SEEK output (Not used in this set.) WIDE WIDE/NARROW select output ST-MONO Use a thing both as ST-IND display input and force MONO output. TUNMUTE Tuner mute output FM-ON...
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Pin No. Pin Name Pin Description RAMBU RAM reset detection input POWSEL Power select initial setting input EQ-SEL Equalizer connection with/without detection initial input TESTIN Test mode setting detection input DOORIND Door indicator output TIRPLAY Audio line select control output at TIR playback. (Not used in this set.) 61, 62 SUB-SW1, 0 Simple SUB WOOFER control output 1, 0...
4-2. CIRCUIT BOARDS LOCATION Pin No. Pin Name Pin Description AMSON Tape AMS control output (Not used in this set.) DOLBC Tape DOLBY B/C select control input/output (Not used in this set.) DOLBY Tape DOLBY control input/output (Not used in this set.) CSV-NAR Not used in this set.
CDX-C680/C780 4-3. BLOCK DIAGRAM — CD SECTION — DIGITAL SERVO/ OPTICAL PICK-UP RF AMP, LD-APC ERROR AMP DIGITAL SIGNAL PROCESSOR DRAM CONTROLLER D/A CONVERTER KSS-520A IC501 IC401 LINE AMP IC403 3 PD1 59 RFDC PCMD 9 DATI DATA 2 DATA...
CDX-C680/C780 4-4. BLOCK DIAGRAM — DISPLAY SECTION — SYSTEM CONTROL LCD DRIVE IC501 (2/2) IC900 RESET BU5V DATA IC601 LCD900 SW801 RESET VLC5 RESET D501 COLOR BUFFER VLC4 GREEN SELECT BUS INTERFACE BUS SO Q900, 902 Q501 IC505 SECTION VLC3...
SECTION 5 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • Color Indication of Appearance Parts The components identified by number in the exploded views are not supplied. mark ! or dotted line with mark. Example : • Items marked “*” are not stocked since ! are critical for safety.
5-5. CD MECHANISM SECTION (3) (MG-363S-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...
SECTION 6 DISC IN SW ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since The components identified by the parts list may be different from the they are seldom required for routine service. mark ! or dotted line with mark.
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LIMIT SW LOAD SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R912 1-216-045-00 METAL CHIP 1/10W 1-659-837-11 LOAD SW BOARD R913 1-216-045-00 METAL CHIP 1/10W *************** R914 1-216-049-11 RES,CHIP 1/10W R915 1-216-053-00 METAL CHIP 1.5K 1/10W <...
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JUMPER RESISTOR > Q210 8-729-420-74 TRANSISTOR 2SD1328-RST Q211 8-729-021-94 TRANSISTOR 2SK1657-T1B JC10 1-216-295-00 SHORT Q212 8-729-920-21 TRANSISTOR DTC314TKH04 JC201 1-216-295-00 SHORT 0 (C680) Q213 8-729-920-21 TRANSISTOR DTC314TKH04 JC202 1-216-295-00 SHORT 0 (C680)
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-081-00 METAL CHIP 1/10W R239 1-216-049-11 RES,CHIP 1/10W 1-216-081-00 METAL CHIP 1/10W (C780) 1-216-081-00 METAL CHIP 1/10W R240 1-216-049-11 RES,CHIP 1/10W 1-216-089-00 RES,CHIP 1/10W (C780) 1-216-089-00 RES,CHIP 1/10W R241 1-216-214-00 RES,CHIP...
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R288 1-216-081-00 METAL CHIP 1/10W R516 1-216-065-00 RES,CHIP 4.7K 1/10W R289 1-216-081-00 METAL CHIP 1/10W R520 1-216-097-00 RES,CHIP 100K 1/10W R290 1-216-061-00 METAL CHIP 3.3K 1/10W R524 1-216-017-00 RES,CHIP 1/10W (C780)
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MAIN RELAY SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R809 1-216-025-00 RES,CHIP 1/10W JC802 1-216-295-00 SHORT R810 1-216-049-11 RES,CHIP 1/10W R811 1-216-049-11 RES,CHIP 1/10W < DIODE > R812 1-216-049-11 RES,CHIP 1/10W R813 1-216-049-11 RES,CHIP 1/10W LED802 8-719-033-14 LED CL-170PG-CD-T (CD WINDOW) LED803 8-719-033-14 LED CL-170PG-CD-T (CD WINDOW)
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SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C501 1-164-004-11 CERAMIC CHIP 0.1uF R106 1-216-001-00 METAL CHIP 1/10W C502 1-135-145-11 TANTALUM CHIP 0.47uF R108 1-216-051-00 METAL CHIP 1.2K 1/10W C503 1-164-232-11 CERAMIC CHIP 0.01uF R109 1-216-057-00 METAL CHIP 2.2K 1/10W...
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CDX-C680/C780 SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R505 1-216-061-00 METAL CHIP 3.3K 1/10W ACCESSORIES & PACKING MATERIALS R506 1-216-073-00 METAL CHIP 1/10W ******************************** R507 1-216-125-00 METAL CHIP 1.5M 1/10W R508 1-216-105-00 RES,CHIP 220K...
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CDX-C680/C780 US Model SERVICE MANUAL SUPPLEMENT-1 File this supplement with the service manual. Subject : Change of Key, Main, Relay and Servo Boards (ECN-CS800990) When performing service and inspection, check the suffix of the part number of the key, main, relay and servo boards.
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1. IC PIN DESCRIPTION • IC5 CXP84640-011Q (CD SYSTEM CONTROL) Pin No. Pin Name Pin Description 1 – 5 — Not used in this set. FP OPEN Front panel open detection input FP CLOSE Front panel close control output LINKOFF Bus interface link input (Not used in this set.) DRV OE Focus/tracking coil/sled motor control output...
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Pin No. Pin Name Pin Description BU.IN Back-up power detection input BUSON Bus on control input IN SW Disc in switch input (SW2) SELF SW Self switch input (SW2) TX CE EEPROM chip enable output SCK2 Sub Q read clock output Sub Q 80 bit, PCM peak and level data 16 bit input CD DATA™...
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DISC IN SW 8. ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since When indicating parts by reference the parts list may be different from the they are seldom required for routine service. number, please include the board.
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LIMIT SW LOAD SW MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R909 1-216-065-00 RES,CHIP 4.7K 1/10W 1-659-835-12 LIMIT SW BOARD R910 1-216-069-00 METAL CHIP 6.8K 1/10W ************** R911 1-216-045-00 METAL CHIP 1/10W R912 1-216-045-00 METAL CHIP 1/10W <...
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < JACK > Q207 8-729-420-74 TRANSISTOR 2SD1328-RST Q208 8-729-420-74 TRANSISTOR 2SD1328-RST J801 1-566-822-41 JACK (REMOTE IN) Q209 8-729-420-74 TRANSISTOR 2SD1328-RST Q210 8-729-420-74 TRANSISTOR 2SD1328-RST < JUMPER RESISTOR > Q211 8-729-021-94 FET 2SK1657-T1B JC10...
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-081-00 METAL CHIP 1/10W R239 1-216-049-11 RES,CHIP 1/10W 1-216-081-00 METAL CHIP 1/10W (C780) 1-216-089-00 RES,CHIP 1/10W R240 1-216-049-11 RES,CHIP 1/10W 1-216-089-00 RES,CHIP 1/10W (C780) 1-216-061-00 METAL CHIP 3.3K 1/10W R241...
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MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R288 1-216-081-00 METAL CHIP 1/10W R516 1-216-065-00 RES,CHIP 4.7K 1/10W R289 1-216-081-00 METAL CHIP 1/10W R520 1-216-097-00 RES,CHIP 100K 1/10W R290 1-216-061-00 METAL CHIP 3.3K 1/10W R524 1-216-017-00 RES,CHIP 1/10W (C780)
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MAIN RELAY SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R812 1-216-049-11 RES,CHIP 1/10W < DIODE > R813 1-216-065-00 RES,CHIP 4.7K 1/10W R814 1-216-049-11 RES,CHIP 1/10W LED802 8-719-033-14 LED CL-170PG-CD-T (CD WINDOW) R815 1-216-049-11 RES,CHIP 1/10W LED803 8-719-033-14 LED CL-170PG-CD-T (CD WINDOW) R816...
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SERVO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C502 1-135-145-11 TANTALUM CHIP 0.47uF R106 1-216-001-00 METAL CHIP 1/10W C503 1-163-021-00 CERAMIC CHIP 0.01uF R108 1-216-051-00 METAL CHIP 1.2K 1/10W C504 1-163-251-11 CERAMIC CHIP 100PF R109 1-216-057-00 METAL CHIP 2.2K 1/10W...
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SERVO Ref. No. Part No. Description Remark R505 1-216-061-00 METAL CHIP 3.3K 1/10W R506 1-216-073-00 METAL CHIP 1/10W R507 1-216-125-00 METAL CHIP 1.5M 1/10W R508 1-216-105-00 RES,CHIP 220K 1/10W R509 1-216-113-00 METAL CHIP 470K 1/10W R510 1-216-061-00 METAL CHIP 3.3K 1/10W R511 1-216-073-00 METAL CHIP...
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CDX-C680/C780 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision 2001. 08 The CORRECTION-1 is included into Ver 1.1...