Onkyo CR-305X - Manual - manualsarea.com

Page 2 - CAUTION ON REPLACEMENT OF OPTICAL PICKUP; PRECAUTIONS; Grounding for the test equipments and tools.; SPECIFICATIONS; AMPLIFIER; CD PLAYER

− 1 − CR-305X CAUTION ON REPLACEMENT OF OPTICAL PICKUP The laser diode in the optical pickup block is so sensitive tostatic electricity, surge current and etc., that the componentsare liable to be broken down or its reliability remarkably deteriorated. During repair,carefully take the following p...

Page 3 - PROTECTION OF EYES FROM LASER BEAM DURING SERVICING; Laser Diode Properties; Emission Duration: continuous; LASER WARNING LABEL; The label shown below are affixed.

PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to follow carefully the instructions below when servicing. WARNING!! SERVICE WARNING : DO NOT APPROACH THE LASER EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS NECESSARY TO CONFIRM LASER BEAM EMISSION, BE ...

Page 4 - SERVICE PROCEDURE; Replacing the fuses; DESCRIPTION; To initialize the unit; Memory Preservation; Front

SERVICE PROCEDURE 1. Replacing the fuses 3. Safety-check out (Only U.S.A. model)After correcting the original service problem perform thefollwing safety check before releasing the set to the customerConnect the insulating-resistance tester between the plug ofpower supply cord and terminal GND on the...

Page 5 - DISPLAY; FRONT PANEL VIEW

DISPLAY TUNING/PRESET STANDBY/ON MEMORY FM MODE CLEAR PHONES A C O U S T IC P R E S E N C E INPUT A C O U S T IC P R E S E N C E VOLUME MAX MIN S T S.BASS DIRECT STEREO MUTING MIN kHz MHz MONO AUTO TRACK TIMERW.DAYW.ENDRECSLEEP C D MEMORYREPEATRANDOM RDS PM AM STANDBY/ON button MEMORY button FM MODE...

Page 6 - Asian and European models; REAR PANEL VIEW

L R L R L REMOTE CONTROL OPTICAL SPEAKERS TAPE CDR DIGITAL OUTPUT SUBWOOFER PRE OUT ANTENNA AM FM 75 R OUT (REC) (PLAY) IN OUT (REC) (PLAY) IN L 1 2 R L R L REMOTE CONTROL OPTICAL SPEAKERS TAPE CDR MD ANTENNA AM FM 75 DIGITAL OUTPUT R OUT (REC) (PLAY) IN OUT (REC) (PLAY) IN OUT (REC) (PLAY) IN R L A...

Page 8 - MICROPROCESSOR CONNECTION DIAGRAM; MICROPROCESSOR

− 8 − CR-305X MICROPROCESSOR CONNECTION DIAGRAM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 4G 5G 6G 7G 8G 9G 10G VDD CDCLK XL T CDD A T A SENS20 DSPMUT SQCK SENS SQSO RESET STEREO SD A VSS V OLDO WN V OLUP AREA IN/OUT SIGNAL K1 K0 AVDD AVREF POFF XT2 VSS X1 X2 RCLK RDATA FREQC...

Page 9 - MICROPROCESSOR TERMINAL DESCRIPTION

CR-305X − 9 − NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 MICROPROCESSOR TERMINAL DESCRIPTION (Q701 : MPD78042GF-3B9) Function 4G 5G 6G 7G 8G 9G 10G VDD CDCLK XLT CDDATA SENS20 DSPMUT SQCK SENS SQSO RESET STEREO SD AVSS VOLDOW...

Page 10 - IC BLOCK DIAGRAM AND DESCRIPTIONS; Block Diagram

− 10 − CR-305X IC BLOCK DIAGRAM AND DESCRIPTIONS V EE V EE TM3 TM5 TM2 TM3 FSET TM6 TM4 V CC V CC V CC ISET TN1-7 PS1-4 TTL ↓ IIL IIL ↓ TTL CC1 DFCT1 DFCT IIL ↓ TTL V CC CC1 CC2 FOK RF -I CP CB V CC V EE V EE V EE LEVEL S MIRR MIRR TGFL LPC IIL DATA REGISTERINPUT SHIFT REGISTERADDRESS DECODERSENS...

Page 11 - Terminal description

− 11 − Terminal description PinNo. Symbol I/O Description PinNo. Symbol I/O Description Focus error amplifier output. Connected internally to the window comparator input for bias adjustment. 1 FEO O 2 FEI Focus error input. I 3 4 FDFCT I Capacitor connection pin for defect time constant. FGD I Gr...

Page 12 - Bloch Diagram

− 12 − CR-305X Q301:CXD2589Q (CD Digital Signal Processor) Bloch Diagram EFM demodurator Clock Generator OSC Error Corrector D/A Interface Serial-In Interface Over Sampling Digital Filter Timing Logic 3rd-Order Noise Shaper PWM PWM 16K RAM Digital OUT Digital CLV CPU Interface Servo Auto Sequence...

Page 15 - Comparator; VREF

− 15 − − 16 − Vcc 1 2 3 4 5 6 7 8 9 10 1 1 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 Level shift 4 BTL AMP 4 Level shift 1 BTL AMP 1 BTL AMP 3 BTL AMP 2 Level shift 3 Level shift 2 RESET Regulator Pin No. Pin Name Description (Function) 1 V CC Power supply (shorted with pin 30) ...

Page 16 - GND; Truth table; rr

− 18 − CR-305X − 17 − Q103:TA7291S (motor driver) Q691:TC7WU04FU (triple inverters) 1A 3Y 2A GND 1 2 3 4 5 6 7 8 Vcc 1Y 3A 2Y Truth table A YL HH L INPUT OUTPUT IN1 0101 IN2 0011 OUT1 ∞ H LL OUT2 ∞ L H L MODE STOP CW/CCW CCW/SW BRAKE CCW : Counter clockwise diectionCW : Clockwise diection Vcc RE...

Page 17 - pickup drive unit

−19 − − 20 − CD MECHANISM EXPLODEE VIEW(1) CD MECHANISM EXPLODEE VIEW(2) pickup drive unit 62 63 51 54 61 55 53 56 57 58 64 52 59 60 6 5 13 20 19 12 14 15 2 1 3 4 29 22 16 17 16 28 27 26 21 16 12 14 15 18 25 24 23 13 14 15 14 15 16 7 9 8 10 6 11 6 6 Ref. No. Part No. Description 1 2646-290-01 Tr...

Page 18 - screw

− 22 − CR-305X − 21 − REPLACEMENT OF OPIAL PICKUP CHASSIS EXPLODED VIEW PARTS LIST The laser diode in the optical pickup block is so sensitive to static electricity,surge current and etc.That the components are liable to be broken down or its reliability remarkably deteriorated.During repair,c...

Page 19 - CHASSIS EXPLODED VIEW

− 23 − − 24 − CHASSIS EXPLODED VIEW 1 7 9 8 10 9 12 14 20 22 24 25 31 41 43 46 47 F901 P302 P303 P351 P352 P701 P778 P901 (D,DT type) Q557 Q558 Q559 Q560 Q557A Q557B T901 Z1 Z2 Z5 Z3 Z6 52 55 53 U1 U2 U3 U4 U5 U6 U8 U9 U10 33 6 6 6 6 6 23 6 6 16 6 6 P901 (P,GR,GT type) 26 50 15 U7 CR-305X

Page 21 - PRINTED CIRCUIT BOARD VIEW PARTS LIST

− 27 − CR-305X − 28 − PRINTED CIRCUIT BOARD VIEW PARTS LIST SELECTOR CIRCUIT PC BOARD (NAAF-6874-1A/-1B/-1C/-1D)CIRCUIT NO. Q401 Q402 Q403,Q404 Q405, Q406 Q409, Q603 Q501-Q504 Q505-Q508 Q509-Q512 Q515-Q518 Q601 Q602 D491,D492 D501-D504 D601 C409,C410 C415-C418 C421,C422 C423,C424,C603 C425,C42...

Page 23 - PRINTED CIRCUIT BOARD VIEW 1

−31 − − 32 − 1 2 3 4 5 A B C D E F G U2 Component side Soldering side U1 Component side Soldering side U5 Component side Soldering side U6 Component side Soldering side PRINTED CIRCUIT BOARD VIEW 1 POWER SUPPLY PC BOARD (NAPS-6878) SELECTOR CIRCUIT PC BOARD (NAAF-6874) SPEAKER TERMINAL PC BOARD ...

Page 25 - PRINTED CIRCUIT BOARD VIEW 2; Component side

− 35 − − 36 − CR-305X 1 2 3 4 5 A B C D E F G PRINTED CIRCUIT BOARD VIEW 2 DISPLAY CIRCUIT PC BOARD (NADIS-6879) U3 Component side Soldering side CD CIRCUIT PC BOARD (NAAR-6875) U8 Component side

Page 26 - PRINTED CIRCUIT BOARD VIEW 3

− 38 − CR-305X − 37 − 1 2 3 4 5 A B C D E F G PRINTED CIRCUIT BOARD VIEW 3 POWER AMPLIFIER PC BOARD (NAAF-6880) U4 Component side Soldering side CD CIRCUIT PC BOARD (NAAR-6875) U8 Soldering side CONNECTOR PC BOARD(NAETC-6883) U9 Component side Soldering side CR-305X

Page 27 - Preparation; Set the trimming resistors R123 to center.; Focus gain adjustment; Set the output of the audio oscillator to 1 kHz and 1; Trimming resistor R123; RF; Test point; * The adjustment of focus offset adjustment is unnecessary.; reqency counter; Trimmer capacitor C703; Display

− 39 − − 40 − CD ADJUSTMENT PROCEDURES CLOCK ADJUSTMENT PROCEDURES Preparation Set the trimming resistors R123 to center. Focus gain adjustment 1. Set the output of the audio oscillator to 1 kHz and 1 〜 1.5 VP-P 2. Connect the oscilloscope and audio oscillator as shown below. (Refer to Fig-1)3...

Page 28 - ASSEMBLING OF PAD; Pad; Pin mark; Side view; PACKING VIEW PARTS LIST; PACKING VIEW

− 42 − CR-305X CR-305X − 41 − 923A PAD (S) (Part No. 29091923A) A B C D E F A B C D E F A B C D E F A B C D E F G A B C D E F G A C E F G A C E F G PAD (Part No. 29091922A) ASSEMBLING OF PAD 922A Pad and Pad(S) are combined. Pad Pad(s) Completed bottom view Pad(S) is folded. Pad is folded. Pin...

Onkyo CR-305X - Manual

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