C-701A SERVICE MANUAL Compact Disc Player MODEL C-701A / ON BY C 701A Silver model SMPP,SMGT SMDT SMGR 230-240V AC, 50Hz 120V AC, 60Hz 220-230V AC, 50/60Hz SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL.
C-701A SERVICE PROCEDURES 1 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 SURE TO OBSERVE FROM A DISTANCE OF MORE THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICKUP BLOCK.
C-701A SERVICE PROCEDURES 2 1. Removement of tray 1. Remove the top cover 2. Turn the locked screw to the clockwise to release the lock of gear. (Refer to fig-1) Fig-1 5. Press the tray stopper to the arrow mark direction and remove the tray ass'y. (Refer to fig-3) Fig-3 Bottom side Lock Unlock 3. Pull out the tray. Front 4. Remove the stopper. (Refer to fig-2) Fig-2 Stopper Tray stopper Front Tray stopper Tray LD Short Terminal Front 2.
C-701A SPECIFICATIONS Signal readout system : Optical non-contact Reading rotation : About 500 - 200 r.p.m. (constant linear velocity) Linear velocity : 1.2 - 1.4 m/s Error correction system : Cross Interleave Reed Solomon code D/A converter : 1 bit D/A converter Sampling frequency : 352.8 kHz (Eight-times oversampling) Number of channels : 2 (stereo) Frequency response : 5 Hz - 20 kHz Total harmonic distortion : 0.
C-701A EXPLODED VIEW A9 P101 A24 A9 U1 U3 Z01 A11 P701 A9 A15 A104 A103 only A9 A216 A25 U5 A215 A216 P701 U2 A101 A102 A216 A27 J904 A103 A705 A216 A210 A9 P901 only A9 A23 A9 U4 U7 A13 A105 F901 A9 A5 A107 T901 A301 P701 A20 U6 A18 A204 A108 A219 only A17 A219 A203 A1 A201 A219 A219 A221
C-701A EXPLODED VIEW PARTS LIST-1 REF. NO. A1 A5 A9 A11 A13 A15 A17 A18 A20 A23 A24 A25 A27 A101 A102 A103 A104 A105 A107 A108 A201 A203 A204 A210 A215 A216 A219 A221 A301 A705 F901 J904 P101 P701 P703 PART NO.
C-701A EXPLODED VIEW PARTS LIST-2 REF. NO. P901 T901 U1 U2 U3 U4 U5 U6 U7 Z01 PART NO.
C-701A CD MECHANISM EXPLODED VIEW (1) 6 7 9 6 6 5 11 6 8 10 13 16 14 17 15 16 16 19 20 28 27 12 13 14 14 15 26 12 21 16 15 14 15 29 1 2 3 18 4 25 24 22 23 PARTS LIST Ref. No. Part No. 1 2646-290-01 2 3 2625-544-01 4 2625-535-01 5 2625-546-01 6 7 2625-537-01 8 1452-493-21 9 2625-541-02 10 2646-291-01 11 2646-288-01 12 2627-236-01 13 2627-235-01 14 2646-289-01 15 Description Tray Stopper Gear cover Tray Gear Chucking plate PTPWH2.
C-701A CD MECHANISM EXPLODED VIEW (2) (Pickup drive unit) 61 59 62 54 55 53 60 63 64 51 56 52 58 57 PARTS LIST Ref. No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 Part No.
C-701A BLOCK DIAGRAM Q402 OPTICAL OUT OP AMP R123 A+C 36 Q101 B+D 37 RF SIGNAL F 38 PROCESSOR & MD 35 SERVO CONTROLLER 18 CLK 14 19 XLT 13 20 DAT 12 21 XRST 79 22 COUT 11 23 10 24 34 X301 16.9344MHZ Q403 OPTICAL OUT 70 XTAO 67 OUT-L -10V Q532 Q761/Q762 D751 Q751 STANDBY STAND-BY LED IND.
C-701A B C E SQSO C907 100/16 10 D903 N A P S - 7 3 2 8 U6 Power transformer PC board 220/6.3 C903 220/16 C503 P_ON/OFF +5VA +5VB +5VB GND GND2 47/50 R507 2.2K 47/35 D907 5.
C-701A B C E SQSO C907 100/16 10 D903 N A P S - 7 3 2 8 U6 Power transformer PC board Q903 220J 2.7K Q501 NJM4565M-D C503 P_ON/OFF +5VB +5VB GND GND2 47/50 R507 2.2K 47/35 D907 5.
C-701A B C E SQSO C907 100/16 10 D903 N A P S - 7 3 2 8 U6 Power transformer PC board 220/6.3 C903 220/16 C503 P_ON/OFF +5VA +5VB +5VB GND GND2 47/50 R507 2.2K 47/35 D907 5.
C-701A PC BOARD CONNECTION VIEW WHT U5: Regulator circuit PC board U5 P911A NAPS-7327 P703A JL912A U1 U1: Main circuit PC board NADG-7323 P103A U7: Open/close U7 switch PC board CLOSE OPEN C-SW GND O-SW P-ON AMUTE RI +5VA GND GND CLOCK XLAT DATA SENS SQSO SQOK SQCK SCOR XRST SENS20 P914A P914B P104 P102A NADG-7324 U3 : Driver circuit PC board P105 U2 U2: Microprocessor circuit PC board P913B JL905A JL912B P913A F901 9 41 NAPS-7328 JL905B NAAF-7325 P703B P7 NASW U4 : Display
C-701A PRINTED CIRCUIT BOARD PARTS LIST-1 U1: Main circuit PC board (NADG-7323-1B/1C/1D/1E) CIRCUIT NO. PART NO. DESCRIPTION ICs Q101 22241661R3 CXA2542AQ Q301 22241500R3 CXD2589Q Q401 22241546R2 TC7WT241FU Photo couplers Q402,Q403 24120082 GP1FA550TZ Transistors Q111 2211504 2SA950-Y Q761 2216260R2 RN1407 Q762 2214540R2 RN2403 Resonator X301 3010308 HC-49/U0316.
C-701A PRINTED CIRCUIT BOARD PARTS LIST-2 U4: Display circuit PC board (NADIS-7326-1B/1C/1D/1E) CIRCUIT NO. PART NO. DESCRIPTION FL tube Q721 212224 HNA-09SS28T LED D751 225338 SLR-332VR(h1=8mm) Socket AS P702 200EE390408 NSAS-4P0893 Socket P701A 25052372 NSCT-35P2269 Holder Q721A 27191157 FL Switches S702-S706 25035699 NPS-111-S662 U6: Power transformer PC board (NAPS-7328-1B/1C/1D/1E) CIRCUIT NO. PART NO.
C-701A MICROPROCESSOR TERMINAL DESCRIPTION Q701: uPD78043FGF No. SIGNAL I/O DESCRIPTION No. SIGNAL I/O DESCRIPTION 1 3G O 36 STANDBY LED 2 4G O 37 DSP RESET O Reset output terminal to signal processing IC. 3 5G O 38 POWER O Power source control output terminal. H=ON, L=OFF 4 6G O 5 7G O | 6 8G O 41 7 9G O 42 OPEN O Tray control output terminal. 8 +5V I Power supply +5V 43 CLOSE O Tray control output terminal.
C-701A FL TUBE VIEW GRID ASSIGNMENT SLEEP TIMER RDM RDS MEM RPT ST col 9G 8G 7G 6G 5G 4G 3G AUTO AM PM kHz MHz 2G 1G g f h a j k e r pn c d (2G-9G) ANODE CONNECTION P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 9G a j h k b f g m c e n r p d - 8G a j h k b f g m c e n r p d - 7G a j h k b f g m c e n r p d - 6G a j h k b f g m c e n r p d 5G a j h k b f g m c e n r p d 4G a j h k b f g m c e n r p d 3G a j h k b f g m c e n r p d RDM MEM RPT - - col - 2G a
C-701A ADJUSTMENT PROCEDURE 1. SERVO ADJUSTMENT 1-1. Preparation Set the VR123 is center position. Connect the cables to the test point. (Fig.-1) 1-2. Focus gain adjustment Load the test disc (YEDS-18) on the tray and play the track 2. Adjust R123 until 1kHz the waveform of channels 1 and 2 on oscilloscope become specified level. (Fig.-2) Check the jitter meter reading . It must be less than 12ns. 1-3. Remove the oscilloscope and audio oscillator.
C-701A PACKING VIEW/ PARTS LIST P83 P84 P61 P85 P86 P45 P87 P81 P48 P41 P82 P44 P46 P41 C-7 01 A(S ) C-7 C-7 01A (S) 01A (S) S) 1A( 0 C-7 P71 P73 PARTS LIST REF. NO. P41 P44 P45 P46 P48 P61 P71 P73 P81 PART NO. 29092023A 29100123C 29110149 29110098 29095906 29100097-1A 29053835 29053836 29362981A 2010376 or 2010396 REF. NO.
C-701A ONKYO CORPORATION Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 E-mail: onkyo@onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de ONKYO CHINA LIMITED Units 2102-2107, Metroplaza Tower I, 223 Hing Fong Road, Kwai Chung, N.
