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SERVICE MANUAL

CDX-848X

Ver 1.2 2001.06

9-870-244-13

Sony Corporation

2001F0500-1

e Vehicle Company

2001.6

Shinagawa Tec Service Manual Production Group

COMPACT DISC CHANGER

Model Name Using Similar Mechanism NEW

CD Drive Mechanism Type

MG-251B-137

Optical Pick-up Name

KSS-720A

US Model

AEP Model

UK Model

SPECIFICATIONS

System

Compact disc digital audio system

Laser diode properties Material: GaAlAs

Wavelength: 780 nm
Emission Duration: Continuous
Laser out-put Power: Less than
44.6

This output is the value measured at a distance of 200 mm
from the objective lens surface on the Optical Pick-up Block.

Frequency response

5 – 20,000 Hz

Wow and flutter

Below the measurable limit

Signal-to-noise ratio

102 dB

Outputs

Optical digital output
BUS control output (8 pins)
Analog audio output (RCA pin)

Current drain

800 mA (during CD playback)
800 mA (during loading or ejecting
a disc)

Operating temperature –10

C to +55

C (14

F to 131

Dimensions

Approx. 262

186.5 mm

(10

/8 in.)

(w/h/d) not incl. projecting parts
and controls

Mass

Approx. 2.1 kg (4 lb. 10 oz.)

Power requirement

12 V DC car battery
(negative ground)

Supplied accessories

Disc magazine (1)
Parts for installation and
connections (1 set)

Design and specifications are subject to change without
notice.

Содержание CDX-848X - Compact Disc Changer System

Страница 1: ... distance of 200 mm from the objective lens surface on the Optical Pick up Block Frequency response 5 20 000 Hz Wow and flutter Below the measurable limit Signal to noise ratio 102 dB Outputs Optical digital output BUS control output 8 pins Analog audio output RCA pin Current drain 800 mA during CD playback 800 mA during loading or ejecting a disc Operating temperature 10 C to 55 C 14 F to 131 F D...

Страница 2: ...TICAL PICK UP BLOCK 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 on clothing and the human body During repair pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts The flexible board is easily ...

Страница 3: ... Boards 25 6 8 Schematic Diagram MAIN Board 1 3 26 6 9 Schematic Diagram MAIN Board 2 3 27 6 10 Schematic Diagram MAIN 3 3 SWITCH Boards 28 6 11 Printed Wiring Boards JACK DIGITAL OUT Boards 29 6 12 Schematic Diagram JACK DIGITAL OUT Boards 29 6 13 IC Pin Function Description 34 7 EXPLODED VIEWS 7 1 Case Section 37 7 2 Mechanism Deck Section 1 MG 251B 137 38 7 3 Mechanism Deck Section 2 MG 251B 13...

Страница 4: ...r déverrouiller la porte Slide open Coulissez pour ouvrir x Utilisez le magasin à disques fourni ou un magasin à disques XA 250 Vous ne pouvez pas utiliser de magasin à disques XA 10B avec cet appareil L utilisation d un autre type de magasin à disques risque de provoquer un dysfonctionnement Notes To listen to an 8 cm 3 in CD use the separately sold Sony CD adapter CSA 8 Be sure to always use the...

Страница 5: ...plied screws Make holes of ø 3 5 mm 5 32 in only after making sure there is nothing on the other side of the mounting surface Installation Installation How to install the unit The brackets 1 provide two positions for mounting high and low Use the appropriate screw holes according to your preference Horizontal installation Installation de l appareil Les supports 1 offrent deux positions de montage ...

Страница 6: ...ntaminated with dirt If this unit is not connected to a car audio compatible with the Sony BUS optical digital transmission system reinstall the protective cap to its original position Use an optical cable designed for Sony car audio systems Not all optical cables can be used with this CD changer Remarques sur le câble optique Lors de la connexion du câble Ne pas forcer le câble en le pliant Si la...

Страница 7: ...NT PANEL ASSY Page 8 2 3 MECHANISM DECK MG 251B 137 Page 8 2 4 JACK BOARD DIGITAL OUT BOARD Page 9 2 9 CHASSIS ASSY Page 11 2 10 RF BOARD Page 12 2 11 SLED MOTOR ASSY 251 M101 OPTICAL PICK UP KSS 720A Page 12 2 12 LSW BOARD SPINDLE MOTOR S SUB ASSY M102 Page 13 2 13 ELJ MOTOR ASSY CHUCKING M103 Page 13 2 7 ESCUTCHEON T Page 10 2 8 CHASSIS U S SUB ASSY Page 11 2 6 ELJ MOTOR ASSY ELEVATOR M104 Page ...

Страница 8: ...HANISM DECK MG 251B 137 3 screw PTT2 6 6 4 lever FLT 3 screw PTT2 6 6 3 screw PTT2 6 6 1 screw PTT2 6 6 1 screw PTT2 6 6 2 front panel assy 4 lever FLT 5 case upper T 2 tension coil spring FL 2 tension coil spring FL 1 two dampers T filament tape 1 two dampers T 3 jack flexible board CNJ901 4 mechanism deck MG 251B 137 ...

Страница 9: ... the jack board in the direction of the arrow 1 ground point screw PTT2 6 6 2 Remove two solders of the elevator motor leads M104 2 Remove two solders of the switch board leads 2 Remove three solders of the slide variable resistor RV202 4 heat sink T 3 screw PTT2 4 6 main board 5 two screws FP 1 main flexible board CNJ101 5 screw FP 7 screw PTT2 4 8 slide variable resistor elevator height sensor R...

Страница 10: ...1 screw PTT2 4 2 bracket EVM S 4 ELJ motor assy elevator M104 3 spacer MO 2 Remove the claw in the direction of arrow A 4 Remove the ditch in the direction of arrow B A B 5 Remove the escutcheon T in the direction of arrow C 4 ditch 3 claw C 3 two claws 1 screw T ...

Страница 11: ...ASSY 1 three screws PTT2 4 1 screw PTT2 4 1 two screws PTT2 4 4 spring SUT 2 Remove the edge in the direction of arrow A 5 chassis U S sub assy 3 A 6 chassis assy 1 Turn the gear EVD S fully in the direction of arrow A 5 spring stopper lower 4 A 3 2 3 ...

Страница 12: ... leads M102 2 Remove two solders of the sled motor leads M101 1 OP flexible board CN102 4 RF board 1 two precision screws P2 3 4 Turn shaft feed assy in the direction of the arrow then remove it 2 sled motor assy 251 M101 OP flexible board adhesive sheet 3 optical pick up KSS 720A optical pick up Note After connecting OP flexible board fix it with adhesive sheet to optical pick up ...

Страница 13: ...s P1 7 2 2 7 3 spring chucking 6 retainer disc 4 precision screw P2 2 2 5 bracket CP 9 Remove the spindle motor S sub assy M102 in the direction of the arrow 2 LSW board 1 precision screw P2 2 5 2 two screws PTT2 4 3 retainer CHM 4 ELJ motor assy chucking M103 1 Remove two solders of the chucking motor leads M103 ...

Страница 14: ...OCK 3A in the direction of arrow A and return it a little in the direction of arrow B from the position where the chuck plate is moved down to the lower limit A B 3 stop ring 2 0 E type 4 tension spring DH 2 optical pick up complete assy Note Insert the shaft A first shaft A 3 2 OPTICAL PICK UP COMPLETE ASSY Page 14 3 3 GEAR LOMINI LOAD CAM ASSY Page 15 3 4 OPERATION CHECK Page 15 ...

Страница 15: ...e chuck plate up B 4 stop ring 1 5 E type 3 Attach the gear LOAD CAM assy with its facing inside slit 3 4 OPERATION CHECK 1 Confirm that the slider moves in the direction of arrow C to move down the chuck plate if the gear LOAD CAM is rotated in the direction of arrow A or the chuck plate moves up and the slider moves in the direction of arrow D if the gear is rotated in the direction of arrow B c...

Страница 16: ...elow adjust the following 5 Press repeatedly the DISC and buttons on the master unit so that the elevator shafts moves from address 6 to address 5 or from 5 to 6 At this time adjust RV201 on the main board so that the elevator shaft positions smoothly between comb teeth A and B 6 Further place the set horizontally and make same adjustment as mentioned above 7 After adjustment at addresses 5 to 6 i...

Страница 17: ...ay mode by loading the disc YEDS 18 3 Confirm that oscilloscope waveform is clear and check RF sig nal level is correct or not Note Clear RF signal waveform means that the shape can be clearly distin guished at the center of the waveform When observing the eye pattern set the oscilloscope to AC range and raise the vertical sensitivity so that it may be easily seen GND BUS cable compact disc change...

Страница 18: ...utton on the master unit and check the traverse waveform 4 Confirm that the oscilloscope waveform is symmetrical on the top and bottom in relation to 0 V dc and check this level Traverse waveform This is the tracking error wave form appears when crossing the track A B 0 V A B traverse waveform 100 track jump waveform VOLT DIV 500 mV TIME DIV 2 ms Center 0 V Traverse waveform oscilloscope DC range ...

Страница 19: ...V AMP PD LD DETECTOR TRACKING FOCUS 2 AXIS DEVICE OPTICAL PICK UP BLOCK KSS 720A LASER DIODE M M M101 SLED M M M102 SPINDLE M M M103 CHUHCKING DATA BCK LRCK 2 1 3 SERIAL INPUT INTERFACE 8 TIME OVER SAMPLING DIGITAL FILTER WITH FUNCTION CONTROLLER MODE CONTROL INTERFACE 22 27 RST DM1 MULTI LEVEL MODULATOR D A CONVERTER LOW PASS FILTER 15 88 15 16 15 13 VOUTL VOUTR BPZ CONTROL CRYSTAL OSCILLATOR 3 6...

Страница 20: ... FOR SONY BUS IC302 5V REGULATOR IC305 3 3V REGULATOR Q303 304 DAC SERVO 5V Z SW801 51 MAGLK SW 4 ELVF 3 ELVR SW201 MAGAZINE DETECT ON When magazine is set 3 4 9 7 MOTOR DRIVE IN1 IN2 OUT1 OUT2 ELEVATOR MOTOR DRIVE IC301 M M104 ELEVATOR SYSTEM CONTROLLER IC201 2 2 RESET 10 6 9 11 4 1 12 13 2 8 7 SO SI SCK BUSON OUT BUSON OUT RESET DATA 14 CLK LOF BUSON IN RST 16 17 18 45 81 UNI SI UNI SO UNI CK BU...

Страница 21: ...n Ω and 1 4 W or less unless otherwise specified f internal component C panel designation A B Line H adjustment for repair Power voltage is dc 14 4V and fed with regulated dc power supply from CD changer controller Voltages and waveforms are dc with respect to ground under no signal conditions no mark CD PLAY Impossible to measure Voltages are taken with aVOM Input impedance 10 MΩ Voltage variatio...

Страница 22: ...9 R211 R212 R214 R213 R218 R219 R220 R222 R223 R104 R215 R216 R108 R109 R110 R117 R112 R113 R107 R105 R101 R103 R102 C103 R120 R121 R122 R106 C108 Q102 R119 CNJ101 SW3 LIMIT BLU YEL YEL RED BLK WHT 1 679 422 11 11 M101 SLED M LSW BOARD M103 CHUKING M OPTICAL PICK UP BLOCK KSS 720A OP FLEXIBLE BOARD MAIN FLEXIBLE BOARD MAIN BOARD TP TE TP VC A M102 SPINDLE M BLK RED YEL BLU 1 679 421 11 11 TP RFAC ...

Страница 23: ...ATIC DIAGRAM RF LSW Boards See page 30 for for Waveforms See page 30 for IC Block Diagrams The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified Page 26 ...

Страница 24: ...3 C314 C301 C302 C303 C308 C312 C309 C318 C306 C304 C305 C411 C412 C406 C404 C405 C403 C162 C161 C113 C504 C506 C112 C502 C501 C110 C109 C111 C107 C108 C106 C105 C115 C123 C122 C121 C103 C101 C102 C114 C205 C206 C204 C201 C202 C307 R305 R311 R310 R306 R302 R303 R304 R204 R208 R206 R205 R201 R250 R203 R211 R209 R221 R222 R202 R207 C203 R101 R125 R123 R122 R108 R109 R103 R102 R104 R105 R106 R107 C10...

Страница 25: ...409 C410 C313 C311 C407 C509 X501 C319 X201 BP201 BP121 BP122 BP301 BP302 CHASSIS CHASSIS RV202 EVEVATOR HEIGHT SENSOR M104 EVEVATOR CHASSIS M RED BLK YEL BLU 1 679 417 11 11 SWITCH BOARD CHASSIS SW801 Z YEL BLU IC304 IC305 SUB BOARD TP6 TP5 TP4 TP3 TP2 TP1 X MAIN BOARD COMPONENT SIDE Y MAIN BOARD COMPONENT SIDE NOT SUPPLIED See page 3 B C D E F G H I J K 1 2 3 4 5 6 7 8 9 10 11 A Page 24 Page 24 ...

Страница 26: ...CDX 848X 26 26 6 8 SCHEMATIC DIAGRAM MAIN Board 1 3 See page 30 for Waveforms See page 30 for IC Block Diagrams Page 23 Page 27 Page 28 ...

Страница 27: ...CDX 848X 27 27 SUB BOARD TP6 6 9 SCHEMATIC DIAGRAM MAIN Board 2 3 See page 30 for Waveform See page 30 for IC Block Diagram Page 26 Page 28 Ver 1 1 2001 05 Page 26 ...

Страница 28: ...CDX 848X 28 28 6 10 SCHEMATIC DIAGRAM MAIN 3 3 SWITCH Boards See page 30 for Waveforms See page 30 for IC Block Diagrams SUB BOARD NOT SUPPLIED See page 3 Page 26 Page 27 Page 29 Ver 1 1 2001 05 Page 27 ...

Страница 29: ...BOARD CN701 C701 R701 1 679 420 11 11 IC701 SW701 4 3 2 1 1 679 420 11 11 ANALOG DIGITAL DIGITAL OUT CN901 ANALOG OUT L R 4 5 1 2 3 8 6 7 5 4 8 7 6 2 1 3 CONTROL FOR SONY BUS 6 11 PRINTED WIRING BOARDS JACK DIGITAL OUT Boards See page 21 for Circuit Boards Location 6 12 SCHEMATIC DIAGRAM JACK DIGITAL OUT Boards Page 24 Page 28 ...

Страница 30: ...rox 250 mVp p 4 5 Vp p 22 7 µs 4 7 Vp p 472 ns 5 4 Vp p 59 1 ns 3 9 Vp p 250 ns 6 2 Vp p 59 1 ns IC Block Diagrams RF Board IC101 CXA2581N T4 RW ROM RW ROM EQ ON OFF VOFST VOFST DVC VC VC VC RW ROM VC DVC 30 29 28 DVC VCC DVC 27 26 25 24 RW ROM EQ 23 22 21 20 19 RFAC VCA VCC DVC RW ROM VC RW ROM DVC 3 A B C D B C A A A B C D B C D D 1 2 APC AMP 5 6 7 8 9 4 RFAC SUMMING AMP RW ROM APC OFF Hi Z RW R...

Страница 31: ...EL SHIFT 10 11 14 LEVEL SHIFT AMP A AMP B 15 16 17 18 23 19 34 35 36 25 24 22 21 20 33 32 31 30 29 28 27 26 12 13 MAIN Board IC102 MSM51V17400D 10TK FS DATA BUS DQ3 DQ4 VSS 4 DQ2 3 A10 8 A0 9 A1 10 A2 11 A3 12 VSS 13 NC 6 NC 7 DQ1 2 VCC 1 26 23 24 25 A8 NC 19 20 A9 21 A6 A7 17 18 A4 A5 15 VSS 14 16 ROW DECODERS WORD DRIVERS MEMORY CELLS INTERNAL ADDRESS COUNTER TIMING GENERATOR TIMING GENERATOR SE...

Страница 32: ... MDP MDS SSTP SFDR SRDR TFDR TRDR FFDR FRDR FRDR FFDR TRDR TFDR SRDR SFDR SCLK ATSK SSTP COUT FOK DFCT MIRR VSS1 TEST TES1 AVDD0 IGEN AVSS0 RFDC E F 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 XOE XCAS D2 D3 D0 D1 XWE XRAS A11 A10 DVDD A0 A1 A2 A3 AVDD2 LOUT2 AIN2 AOUT2 AVSS2 AVSS1 AOUT1 AIN1 LOUT1 AVDD1 XVSS XTAO XTAI XVDD BCKI XO...

Страница 33: ...CC BUS ON LINK OFF CLK OUT DATA OUT DATA IN BUS RESET BUS DATA VREF BUS CLK GND BUS ON IN BUS ON OUT RESET RESET SWITCH IC304 MJM2395AF08 IC305 MJM2395AF05 2 VOUT 3 GND 1 VIN 4 CONT CONTROL 1 2 3 26 25 28 27 23 22 21 24 7 8 9 10 20 19 4 5 6 LOW PASS FILTER MODE CONTROL INTERFACE SERIAL INPUT INTERFACE CRYSTAL OSCILLATOR POWER SUPPLY MULTI LEVEL MODULATOR 8 TIME OVER SAMPLING DIGITAL FILTER WITH FU...

Страница 34: ...d servo section power supply on off control signal output H power on 24 ELVON O Mechanism deck section power supply on off control signal output H power on 25 RX I Input terminal at the flash memory data write mode Not used open 26 TX O Output terminal at the flash memory data write mode Not used open 27 NC O Not used open 28 EECLK O Serial data transfer clock signal output to the EEPROM IC203 29 ...

Страница 35: ... to the D A converter IC501 H emphasis on 67 MUTE O Audio line muting on off control signal output H muting on 68 RAMA10 O Address signal output to the S RAM Not used open 69 RAMCS O Chip select enable output to the S RAM Not used open 70 to 74 RAMIO7 to RAMIO3 I O Two way data bus with the S RAM Not used open 75 RESET I System reset signal input from the SONY bus interface IC302 and reset signal ...

Страница 36: ...LIM SW I Sled limit in detect switch SW3 input terminal L When the optical pick up is inner position 99 RW SEL O CD ROM RW selection signal output L CD ROM H CD RW 100 RAMA4 O Address signal output to the S RAM Not used open 1 elevator motor M104 control STOP ELEVATOR UP ELEVATOR DOWN BRAKE ELVF pin 4 H L H L ELVR pin 3 H H L L Mode Terminal 2 chucking motor M103 control STOP LOAD CHUCKING SAVE BR...

Страница 37: ... 664 796 11 JACK FLEXIBLE BOARD 4 1 679 418 11 JACK BOARD 5 X 3379 711 1 DOOR H ASSY US 5 X 3379 715 1 DOOR H ASSY AEP UK 6 3 376 464 11 SCREW PTT 2 6X6 GROUND POINT 7 3 229 226 01 PANEL FRONT 8 3 042 244 11 SCREW T 9 3 041 218 21 ESCUTCHEON T 10 3 022 007 01 BUTTON EJT Z 11 3 022 012 01 HEAT SINK T 12 3 038 166 01 SPRING FL TENSION COIL 13 3 022 010 31 LEVER FLT 14 3 047 688 01 CASE UPPER LOWER 1...

Страница 38: ...ANISM DECK SECTION 1 MG 251B 137 Ref No Part No Description Remark Ref No Part No Description Remark 101 X 3378 091 1 CHASSIS U S SUB ASSY 102 3 024 161 01 SPRING SUT 103 3 011 997 01 SPRING STOPPER LOWER 3 3 3 101 102 103 ...

Страница 39: ...No Part No Description Remark Ref No Part No Description Remark 151 3 024 170 01 SPRING SB TENSION 152 3 040 790 01 BRACKET EVM S 153 X 3378 092 1 CHASSIS D S SUB ASSY 154 3 014 685 01 SPACER MO M104 A 3301 123 A ELJ MOTOR ASSY ELEVATOR 151 152 154 153 3 M104 ...

Страница 40: ...7 139 01 GEAR WORM LOAD A 206 3 022 839 01 ARM NSW 207 3 573 936 00 STOPPER REEL 208 X 3375 220 1 GEAR LOAD CAM ASSY 209 3 010 252 11 ROLLER CRE 210 3 010 268 01 SPRING DH TENSION 211 A 3290 194 C MAIN ASSY CHASSIS EVY 212 3 010 254 11 SHAFT ROTARY PREVENTION C 213 3 010 253 01 GEAR LOMINI 214 A 3326 947 A RF BOARD COMPLETE M103 A 3301 123 A ELJ MOTOR ASSY CHUCKING 213 212 211 210 209 202 201 214 ...

Страница 41: ... 03 OPTICAL PICK UP KSS 720A K1RP 256 A 3291 669 A SHAFT FEED ASSY 257 3 010 263 01 DETENT SHAFT THRUST 258 1 679 422 11 LSW BOARD 259 A 3301 954 A BASE OPT S J ASSY M101 A 3315 151 A SLED MOTOR ASSY 251 M102 A 3301 998 A SPINDLE MOTOR S SUB ASSY The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified 258 256 255 254 253 252 25...

Страница 42: ... 445 21 FERRITE 0uH FB902 1 500 445 21 FERRITE 0uH FB903 1 500 445 21 FERRITE 0uH IC LINK PS901 1 576 398 21 LINK IC CCP2E63 1 679 422 11 LSW BOARD SWITCH SW3 1 529 565 41 SWITCH PUSH 1KEY LIMIT A 3283 131 A MAIN BOARD COMPLETE 1 676 339 12 MAIN FLEXIBLE BOARD CAPACITOR C101 1 164 156 11 CERAMIC CHIP 0 1uF 25V C102 1 164 156 11 CERAMIC CHIP 0 1uF 25V C103 1 164 156 11 CERAMIC CHIP 0 1uF 25V C104 1...

Страница 43: ...MB90473PFV G 110 BNDE1 IC203 8 759 660 38 IC BR24C16FJ E2 IC301 8 759 527 33 IC LB1930M TLM IC302 8 759 829 46 IC BA8272AFV E2 IC303 8 759 827 97 IC XC61CN2502PR IC304 8 759 833 13 IC NJM2395AF08 IC305 8 759 833 12 IC NJM2395AF05 IC306 8 759 444 93 IC RH5RL33AA T1 IC401 8 759 662 11 IC TLV2362IPWR IC402 8 759 662 11 IC TLV2362IPWR IC501 8 759 648 44 IC PCM1728E 2K TRANSISTOR Q202 8 729 901 00 TRAN...

Страница 44: ...IC CHIP 0 022uF 10 25V C217 1 164 156 11 CERAMIC CHIP 0 1uF 25V CONNECTOR CN102 1 778 303 21 CONNECTOR FPC ZIF 16P CNJ101 1 778 777 21 CONNECTOR FPC 26P IC IC101 8 752 089 74 IC CXA2581N T4 IC201 8 759 832 99 IC LA6576L TE L TRANSISTOR Q101 8 729 141 48 TRANSISTOR 2SB624 BV345 Q102 8 729 901 00 TRANSISTOR DTC124EK RESISTOR R101 1 216 801 11 METAL CHIP 22 5 1 16W R102 1 216 837 11 METAL CHIP 22K 5 ...

Страница 45: ... 09 SCREW PTT 2X4 S 4 7 624 104 04 STOP RING 2 0 TYPE E 5 7 627 554 07 SCREW PRECISION P 2X2 2 6 7 628 253 00 SCREW PS 2X4 7 7 627 553 27 SCREW PRECISION P 2X2 5 8 7 624 102 04 STOP RING 1 5 TYPE E 9 7 627 850 28 SCREW PRECISION P 1 4X3 10 7 627 000 00 SCREW PRECISION P1 7X2 2 TYPE 3 11 7 627 553 37 PRECISION SCREW P 2X3 TYPE 3 13 7 685 853 04 SCREW BVTT 2X6 S ACCESSORIES PACKING MATERIALS 3 225 3...

Страница 46: ...46 CDX 848X MEMO ...

Страница 47: ... in the midway of pro duction Printed wiring boards and schematic diagrams of new type and changed parts list are described in this supplement 1 Refer to original service manual for other information NEW FORMER TYPE DISCRIMINATION Former type 1 679 422 11 New type 1 679 422 12 LSW BOARD Component Side Former type 1 679 421 11 New type 1 679 421 12 RF BOARD Component Side NOT Note Y The o Caut Patt...

Страница 48: ...t indicated except for electrolytics and tantalums All resistors are in Ω and 1 4 W or less unless otherwise specified A B Line Power voltage is dc 14 4V and fed with regulated dc power supply from CD changer controller Voltages and waveforms are dc with respect to ground under no signal conditions no mark CD PLAY Impossible to measure Voltages are taken with a VOM Input impedance 10 MΩ Voltage va...

Страница 49: ...07 C111 C101 R201 R202 R203 R204 R206 R205 R207 R208 R210 R209 R211 R212 R214 R213 R218 R219 R220 R222 R223 R104 R215 R216 R108 R109 R110 R117 R112 R113 R107 R105 R101 R103 R102 C103 R120 R121 R122 R106 C108 Q102 R119 CNJ101 SW3 LIMIT BLU YEL YEL RED BLK WHT 1 679 422 12 12 M101 SLED M LSW BOARD M103 CHUKING M OPTICAL PICK UP BLOCK KSS 720A OP FLEXIBLE BOARD MAIN FLEXIBLE BOARD MAIN BOARD TP TE TP...

Страница 50: ...CDX 848X 3 3 SCHEMATIC DIAGRAM RF LSW Boards The components identified by mark 0 or dotted line with mark 0 are critical for safety Replace only with part number specified ...

Страница 51: ...OR CN102 1 778 303 21 CONNECTOR FPC ZIF 16P CNJ101 1 778 777 21 CONNECTOR FPC 26P IC IC101 8 752 089 74 IC CXA2581N T4 IC201 8 759 832 99 IC LA6576L TE L TRANSISTOR Q101 8 729 141 48 TRANSISTOR 2SB624 BV345 Q102 8 729 901 00 TRANSISTOR DTC124EK RESISTOR R101 1 216 801 11 METAL CHIP 22 5 1 16W R102 1 216 837 11 METAL CHIP 22K 5 1 16W R103 1 216 837 11 METAL CHIP 22K 5 1 16W R104 1 216 845 11 METAL ...

Страница 52: ...the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 2 2001 06 Change of RF LSW BOARDS ECN CSA04819 1 1 2001 05 Addition of SUB BOARD ECN CSB02847 1 0 2001 02 New ...

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