CD-C471H SERVICE MANUAL No. S5830CDC471H/ CD-C471H CP-C471H, CENTER(GBOXS0006AWM5) and SURROUND(GBOXS0007AWM5) Speaker System Constitute CD-C471H. • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used. Illustration: CD-C471H Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY, the double-D symbol and "PRO LOGIC" are trademarks of Dolby Laboratories Licensing Corporation.
CD-C471H (FOR GERMANY) SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements.
CD-C471H FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS CD-C471H General Power source: Power consumption: Dimensions: Weight: Cassette deck section AC 230 V, 50 Hz 112 W Width; 270 mm (10-5/8") Height; 303 mm (11-13/16") Depth; 350 mm (13-13/16") 6.9 kg (14.8 lbs.
CD-C471H NAMES OF PARTS CD-C471H 1 Front Panel 1. (CD) Disc Tray 2. (CD) Disc Number Selector Buttons 3. (CD) Disc Skip Button 4. (CD) Open/Close Button: 5. (CD) Play Indicator: 6. (CD) Repeat Indicator: 7. (CD) Pause Indicator: 8. (CD) Disc Number Indicators 9. (TUNER) RDS Indicator 10. (TUNER) EON Indicator 11. (TUNER) Traffic Announcement Indicator: TA 12. (TUNER) Traffic Programme Indicator:TP 13. (TUNER) Traffic Information Indicator: TI 14. (TUNER) Programme Type Indicator: PTY 15.
CD-C471H CD-C471H Rear Panel 1. CD Digital Output Socket 2. AC Power Input Socket 3. MW/LW Loop Aerial Input Socket 4. FM 75 ohms Aerial Socket 5. Video/Auxiliary (Audio Signal) Input Sockets 6. Sub Woofer Output Socket 7. Front Speaker Terminals 8. Center Speaker Terminals 9. Surround Speaker Terminals 3 1 4 5 6 2 Speaker Section Front Speaker 7 8 9 CP-C471H Right speaker Left speaker 1. Super Tweeter 2. Tweeter 3. Woofer 4. Bass Reflax Duct 5.
–6– Press the TUNING/TIME ( minutes. or Press the MEMORY/SET button. ) button to adjust the Press the MEMORY/SET button. Note: ● In the event of a power failure or when the AC power lead is disconnected, the clock display will go out. When the AC power supply is restored, the clock display will flash on and off to indicate the time when the power failure occurred or when the AC power lead was disconnected. If this happens, follow the procedure below to change the clock time.
CD-C471H DISASSEMBLY Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit. 3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit.
CD-C471H Front Panel ( D1 ) x1 ø3 x10mm ( L1 ) x1 ø3 x10mm Tuner PWB ( D2 ) x1 CD Servo PWB Main PWB ( L2 ) x2 Back Board ( E1 ) x1 ø3 x10mm ( E2 ) x1 ( L2 ) x2 ( D1 ) x2 ø3 x10mm ( D1 ) x9 ø3 x8mm Loading chassis Figure 8-5 Figure 8-1 Front Panel ( F3 ) x1 ( M1 ) x1 ø3 x10mm ( F4 ) x1 ( M2 ) x1 ( F2 ) x2 Washer ( G2 ) x1 ( F3 ) x1 Power Amp.
CD-C471H CP-C471H STEP 1 CP-C471H REMOVAL PROCEDURE Front Speaker 1. Net .......................... 2. Fromt Panel ........... 3. Screw ..................... 4. Screw ..................... 5. Screw ..................... FIGURE (A1) x1 (A2) x1 (A3) x2 (A4) x4 (A5) x2 9-1 Tweeter 9-2 Front Panel ( A2 ) x1 Net ( A1 ) x1 Note: The center and SURROUND speakers can be easily disassembled. Therefore the disassembling method is not discribed.
CD-C471H REMOVING AND REINSTALLING THE MAIN PARTS CD MECHANISM SECTION Perform steps 1, 2, 3, 14 and 15 of the disassembly method to remove the CD mechanism. Turntable Up/Down Motor How to remove the turntable up/down motor (See Fig. 10-1) 1. Remove the screws (A1) x 2 pcs., to remove the turntable up/down motor. ( A1 ) x2 ø2 x5mm Figure 10-1 How to remove the pickup (See Fig. 10-2) ( B1 ) x2 ø 2.6 x6mm 1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2) x 1 pcs. 2.
CD-C471H ADJUSTMENT MECHANISM SECTION TUNER SECTION • Driving Force Check fL: Low-range frequency Torque Meter fH: High-renge frequency • AM IF/RF Signal generator: 400 Hz, 30%, AM modulated Specified Value Play: TW-2412 Tape 1: Over 80 g Tape 2: Over 80 g • Torque Check Torque Meter Frequency Display IF 450 kHz 1,620 kHz MW Band Coverage — 522 kHz (fL): T306 *2 1.1 ± 0.1 V MW Tracking LW Band Coverage 990 kHz 990 kHz (fL): T302 — 153 kHz (fL): T305 *2 1.5 ± 0.
CD-C471H TEST MODE • Setting the test mode Any one of test mode can be set by pressing several keys as follows. + + TEST: CD operation test • TEST mode Function — CD test mode Setting of TEST mode Indication of CD TST mode (Fig.12-1) IL is not performed. OPEN/CLOSE operation is manual operation. The pickup can be moved by using the ( LASER ON Tracking on the spot. SERVO OFF PLAY key input ) or ( ) key. Tracking on the spot.
CD-C471H EXPLANATION OF DOLBY SURROUND PRO LOGIC AND EVALUATION METHOD Outline • Namely, two speakers are connected in parallel to one amplifier. • In the Pro Logic BYPASS mode the amplifier for C-ch (center channel) and the amplifier for S-ch (surround channel) are in MUTE state. The SP output is cut. • In the normal mode of Pro Logic ON mode the amplifiers for C-ch and S-ch are in operative state, so that the SP output appears.
CD-C471H RDS (Radio Data System) OPERATION DISPLAY MODE Receiving FM Stations with RDS (Radio Data System) Descriptions of the PTY (Programme Type) codes, TP (Traffic Programme) and TA (Traffic Announcement) Eith the CD-C471H, you can search for and receive the forrowing PTY, TP and TA signals. RDS is a broadcasting service which a growing number of FM stations are now providing. It allows these FM stqtions to send additional signals along with their regular programme signals.
– 15 – Yes Yes Compare the field strength of current receiving signal. Is receiving signal stronger than signal which has same PI cord and is already memorized to preset memory ahead of this receiving time? Yes Comparing PI cord same or not? between current receiving PI and before PI which is already memorized by ASPM on this time. Yes RDS signal or not? PI—identify If count 2nd OK? If count 1st OK? Yes SD (TUNE) DET out OK? Begin to scan start 87.50 → 108.
CD-C471H • ASPM SCAN: 87.50MHz → 108.00 MHz. • Only RDS signal is memorized by ASPM because RDS signal has PI code and is suitable and convenient for ASPM operation. ASPM Comparing field strength, only one strongest RDS station is memorized of all stations (repeater relay stations) that have same PI code. f3 P 1 (PI cord) PS 1 (Station Name) f5 P2 PS 2 f4 --- f1 f2 --- Each PI has AF’S list by individually. Exa: P1 has f1, f2, f3 (same PTY). Same PI code — freq: different P2 has f4, f5 (same PTY).
CD-C471H EON summary notice for reference 1. EON-TI/PTY EON stand-by can be set, only when EON ind. lights up. While EON ind. goes out (NO EON STATION), EON stand-by can't be set. If the EON button is pressed, then “NO EON” is indication the display. 2. EON-TI/PTY Even if switch back ON→TN station continue to keep EON stand-by. 3. EON-TI Don’t switch TN→ON during TN broadcast TA. (same item) 4.
CD-C471H NOTES ON SCHEMATIC DIAGRAM • Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type. • Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad.
Figure 19 BLOCK DIAGRAM (1/3) – 19 – M M PICKUP IN SW4 M1 DISC MOTOR M2 SLED MOTOR TRACKING COIL FOCUS COIL 24 25 30 31 12 13 6 7 1 2 3 4 22 32 8 9 10 11 IC3 M56748FP DRIVER 5 26 27 28 29 34 35 36 20 30 31 54 SERVO AMP. LA9241M IC1 VCC1 64 15 16 27 23 29 FIN2 FIN1 E F LD0 62 TO FD SPO NC SLD JP– 32 CV+ 40 SLC 43 SL1 44 ~ Q1 SL– SL+ DRF XOUT XIN 20 JP– PU-IN SW +B1 SL+. SL–.
CD-C471H SM FM IF AMP FM IF FM FRONT END FE301 CF301 1 CF351 X351 Q301 CF302 AM IF AMP.
CD-C471H VOLTAGE REGULATOR +12V +5V +B5 Q609 1 +B2 VF1 (AC) 5 71 KEY MATRIX KEY5 23 ~ ~ 7 6 4 19 21 22 SW701~SW703 SW709~SW716 SW718,719,721,723,724 SW725,726,728~732 SW733,734,736~740 KEY0 28 ~ 80 DATA CLOCK LCK 37 38 36 72 CE DI DO CLK 54 52 29 8 30 12 11 10 48 33 31 20 9 35 34 47 17 VSS REMOCON 43 42 ~ POWER S-MUTE 70 RESET INPUT/OUTPUT EXPANDER IC702 BU2092F 2 3 4 Q704 1 17 16 ~ IC701 IX0170AW MICROCOMPUTER LED701~LED705 LED706~LED711 13 9 ~ 1 VDD –VP 13 14
CD-C471H R2 1K TR– ACTUATOR PD VR LD 44 DEF 4 5 + – RFSM CV+ CV– SLOF HFL TES + – SL+ JP– SL– SLD R33 R32 1.2K 10K R34 22K 42 0V 2.2V 41 40 39 38 37 36 35 34 33 2.5V R40 2.4V 5.6K R41 47K R42 47K C25 27P R43 C24 56K 2.2P R38 470 0V TP1 4.8V 0V 0V 4.8V 4.8V 0V 6 R36 220K R35 220K 7 R37 82K C35 1/50 D1 1SS133 CNS2A 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 – SW4 PICKUP IN 6 5 4 3 2 1 2V 2V 0V 0V 13 2V 14 2.5V 15 2.5V 16 0V 17 4.7V 18 0V CNP3 6 5 4 3 2 1 2.
CD-C471H R57 1K PW XL1 16.934MHz D82 1SS133 D81 1SS133 R55 150 L61 0.82µH A_GND +B CD_LCH +B 6.5V CNS11 TO MAIN PWB P24 6-A R66 220 5.5V C50 C51 0.022 100/16 1 2 3 4 5 6 CNP11 Q52 KTC3203 Y C71 10/50 +B 4.9V +5V C43 330/6.3 TEST4 33 0V R73 390 C73 C74 220P 220P C72 10/50 R71 2.7K R64 22 ZD61 MTZJ5.6B C53 0.022 C83 0.022 R74 390 C75 0.001 32 4.8V 2.5V 0V R-CH A_GND L-CH D-GND 7.
CD-C471H 14 13 12 11 10 9 8 7 6 5 4 3 2 1 CNS12 14 13 12 11 10 9 8 7 6 5 4 3 2 1 26 D-5V M-GND M-12V TA-CAM-SW T1-RUN T2-RUN BI201 M-12V 7.
CD-C471H M-12V 7.3V D-GND L-CH TO ERVO PWB CNP11 23 12-C 3 4 5 6 CNS11 BI601 MAIN PWB-A1(1/2) R651 1.8K +B C639 10/50 R622 470K D553 1SS133 C565 2.2/50 4 1 SPE4 5 6 8 7 R632 6.8K 6 R-CH D606 1SS133 JK452 ZD551 MTZJ6.2C R574 330 R464 100K C458 0.082 (ML) D541 1SS133 8 JK451 SUB2WOOF OUT C485 0.0033 1 5 6 R461 1K C462 2.2/50 7 4 C459 10/16 C461 0.022 3 R663 3.9K C657 0.022 5 R662 C660 3.9K 2.2/50 7 4 6 R642 10K R647 2.2K C661 0.001 C662 0.
CD-C471H A QM05 KTA1266GR DRIVER MM1 TAPE MOTOR B 1 M TAPE VRM1 SPEED 3.3K(B) 1 FWM1 MOT L 1 2 3 4 5 6 7 8 9 MOT H MOT +B PHM1 T2_A_FP 4 TA_CAM_SW D_GND SWM3 REC FWD T1_RUN SWM6 CAM T2_PH_IN T2_RUN RUL CNPM2 SWM5 F.A.S. 10 T2_B_FP 11 MOT L CM01 47/16 QM03 KTA1271Y DRIVER DM02 1SS133 FWM2 WTM1 TAPE MECHANISM PWB-F L H + – QM02 KTA1273 MOTOR DR RM11 8.2K +B MOT H MOT +B T2_A_FP TA_CAM_SW D_GND T1_RUN T2_RUN T2_PH_IN RUL RM 1.
CD-C471H MAIN PWB-A1(2/2) 6GR RM12 33K +B TA_MOT_H/L RM05 10K QM02 KTA1273Y MOTOR DRIVER M01 /16 QM03 TA1271Y DRIVER RM06 2.2K TA_MOT_SW RM07 10 M_12V +B RM09 2.2K TA_PUL RM08 10K T2_A_FP TA_CAM_SW D_GND T1_RUN T2_RUN RM20 10K RM19 3.3K RM16 10K RM15 10K RM14 10K T2_B_FP D_5V DM03 1SS133 REC/PB T1/T2 PB_MUTE REC_MUTE TAPE_R-CH R156 120K TAPE_L-CH REC_R-CH Q122 KTC3199 GR MUTING R153 10K C144 0.022 C130 470P R155 120K R154 10K R147 10K R143 10K C143 0.
1 2 3 P12 P13 +B F C712 1/50 DISPLAY PWB-A2 1 3 2 4 5 JK700 HEADPHONES H • NOTES ON SCHEMATIC DIAGRAM can be found on page 18.
RD07 RD06 RD05 RD04 12K 5.6K 3.9K 2.2K SW708 SW707 SW706 SW705 SW704 OPEN /CLOSE DISC 3 DISC 2 DISC SKIP 1 FW701 DISC 1 DISPLAY PWB-A3 R749 10K FW701-2 CD-C471H 3 FW701-1 +B 1 ON/ STAND-BY R736 8.2K R735 8.2K R734 8.2K R733 8.2K R732 8.2K R731 8.2K 220/10 1K 1K 0.022 C702 R712 R713 C701 1K 1K 1K 1K 1K 1K RD24 1.
CD-C471H + 2 Ch IC901 STK40704 POWER AMP. Ch2 R915 220K R905 1K C903 1/50 GND 15 0V 14 –0.1V 13 –0.1V C923 120P C915 R921 120P 10K C916 15P R924 C924 15P 1K 12 –32V 11 –0.1V 33.6V 10 H:ON L:OFF Q90 KRC R907 1K 30.6V R910 2.2K R902 68K C902 220P R903 15K R904 68K C905 220P 30.7V R901 15K –33V C912 R913 100/50 100 9 C977 1000/6.
C978 47/50 C934 0.1 (ML) C935 0.1 (ML) R934 4.7 1.2V R933 10K 39 01 26.2V 14 13 0V 2.3V 12 0V 11 28.1V 10 C933 220/35 1 2 – + IC951 LA4450 POWER AMP. H:ON L:OFF 1.2V 9 8 + – C938 47/35 C932 0.001 3 4 5 6 7 0V R932 18K R945 6.8 R947 6.8 R948 6.8 C947 0.022 C951 0.022 C955 0.022 C957 0.022 C948 0.022 C952 0.022 C956 0.022 C958 0.022 C942 C944 47/50 1000/25 14.9V 0V R941 270 (1/2W) 0V 14.9V 26.2V R942 270 (1/2W) C943 47/50 C941 0.022 C817 4.7/50 R944 4.7 R946 4.7 C953 0.
CD-C471H A VD301-1 KV1236Z23F 10/16 0.022 0.001 C365 C366 0.022 C362 3.3/50 C361 9.4V (0V) C381 12P (CH) C382 15P (CH) (1.2V) 12.1V C384 0.001 (12.1V) 0V 2 3 12.1V 1 R374 1K R397 1K Q362 KRA107 M C387 0.022 C385 0.01 D352 1SS133 R373 1K +B R371 1K Q371 KTA1266 GR H • NOTES ON SCHEMATIC DIAGRAM can be found on page 18. 3 7 STEREO R377 47K +B G 2 6 SD R 1K L351 100µH 4 DI R372 5 CL 1K AIN 19 6 DO PD 18 R379 2.2K 7 FM VDD 17 R382 150 VSS 21 AOUT 20 C394 47/16 C392 0.
CD-C471H QT21 KTC3199 GR 0.7V (0V) C358 1/50 C355 22P RT49 390 +B LT21 2.2µH RT51 1K RT52 1K RT53 1K RT54 1K LT22 2.2µH XT21 CT27 4.332MHz 22P (CH) VDDD 14 XIN 13 12 XOUT 11 VSSD 15 16 9 10 17 SYNC 18 RDS-ID 19 CT28 47/10 CT29 0.022 8 T2 7 T1 5 FLOUT DO 20 TP TP RT21 100K 4 VSSA CL 21 RT29 1K CT21 47/10 +B +B ZDT21 MTZJ5.1B C356 0.001 CT23 10/16 MUTING 0V Q354 KTC3199 GR R354 3.9K RT48 390 CT24 0.022 0V C370 1/50 100/10 C398 C357 R355 2.2/50 3.3K R367 C375 1K 3.
CD-C471H A B C D E IC1 PIN VOLTAGE NO. 1 2.4V 2 2.4V 3 2.5V 4 2.5V 5 2.4V 6 2.5V 7 2.5V 8 2.5V 9 2.5V 10 2.4V 11 2.5V 12 2.5V 13 2.5V 14 2.5V 15 2.5V 16 2.5V 17 2.5V 18 2.5V 19 2.5V 20 2.4V 21 2.5V 22 0V 23 2.5V 24 2.5V 25 2.5V 26 2.5V 27 2.5V 28 2.5V 29 2.5V 30 2.2V 31 2.2V 32 0V 33 0V 34 4.8V 35 4.8V 36 0V 37 0V 38 4.8V 39 0V 40 0V 41 1.5V 42 2.4V 43 2.5V 44 2.4V 45 0V 46 2.5V 47 2.5V 48 0V 49 0V 50 2.4V 51 4V 52 4V 53 0V 54 0V 55 4.8V 56 4.8V 57 2.5V 58 2.5V 59 1V 60 1V 61 2.2V 62 4.2V 63 0V 64 4.
CD-C471H DISPLAY PWB-A2 C731 SW701 ON/STUND-BY R775 C726 R736 LED706 RD20 41 40 L701 R770 C708 R727 R726 C704 IC701 20 LED707 15 70 75 LED709 10 5 80 1 SW737 REV SW719 CENTER MODE /NORMAL R743 R708 R707 R706 R705 R704 R703 R702 R701 B C E RD15 SW718 CENTER MODE /PHAMTOM SW728 STOP R739 LED701 C725 SW729 FWD SW734 EQUALIZER DEMO R735 RD24 R737 C716 C712 2 1 RD34 R742 C723 R710 R709 LED711 RD32 RD30 R741 R711 RD17 R733 LED708 SW738 REW/ PRESET DOWN R716 55 60
CD-C471H IC562 E C B 2 R685 C683 B C210 R221 R217 R280 R265 R211 R209 R212 24 C609 D605 13 C205 15 C203 17 D6 19 21 R611 23 R139 C143 C128 C133 C145 C142 C140 R158 R146 R140 R136 R135 L102 R155 Q122 C129 E C B R156 Q121 B C E C136 R153 C130 C144 R132 E C B Q118 R124 E C B C110 R142 R138 C1 R134 C147 13 C134 C122 R111 R126 R112 C604 R143 R131 R125 R123 C112 C105 1 6 R145 C139 C146 15 L108 C114 C120 B BI601 R137 IC101 20 C118 R122 B R1
CD-C471H TO POWER PWB P40 2-D CNP803 7 C459 6 R457 R458 R464 C460 C462 C458 C461 R603 R658 C469 8 C669 R649 IC451 IC651 C652 C657 R639 R631 R678 Q604 C651 5 R461 C485 JK451 SUB WOOFER E E R623 R657 JK452 C673 C664 B C Q601 B C R644 R645 Q602 C638 C630 4 R460 R601 C645 3 R660 C642 C618 2 C451 C656 C455 R459 R648 L-CH R653 VIDEO/AUX 2 R656 R-CH C671 R507 C670 R-CH C540 R505 C541 C199 SHASSIS GND C544 C542 R510 R508 C514 1 10 9 8 7 6 5 4 3
CD-C471H TO MAIN PWB P36 1-E MM1 TAPE MOTOR WTM1 A L H 1 13 FWM1 TAPE MECHANISM PWB-F SWM4 REC RVS 13 SWM3 REC FWD 1 VRM1 4 CNPM1 TAPE SPEED 1 FWM2 CNPM2 SWM5 F. A.
CD-C471H CNS5 SW2 MECHA UP 2 1 SW3 DISC NUMBER 2 1 SENSOR PWB-E SW1 OPEN/CLOSE M3 T/T UP/DOWN LOADING CNS10 OR BR WH GY WH GY WH GY WH RD TAPE SPEED CNPM2 SWM5 F. A.
CD-C471H POWER PWB-B DZ802 ZD801 R804 R803 Q801 C804 R806 D806 C811 D809 D803 C812 D808 D807 D824 R828 R827 R802 R801 B C E R805 B C802 C803 A D805 C813 D804 C805 C829 R826 C808 D801 R969 C909 C910 C913 C933 IC951 1 2 3 C943 C918 R912 C911 C912 Q903 1 2 3 4 5 6 7 8 9 10 11 12 13 14 F R907 R922 R918 R905 C927 R926 C941 R925 C938 C945 R942 R913 C921 R933 R941 R928 C922 C928 C942 C907 R919 C917 C920 C919 C939 C944 CHASSIS GND C807 R932 Q826 D802
CD-C471H M901 FAN MOTOR CNS804 YL YL 9 8 7 6 5 4 3 2 1 BR BR YL YL OR OR RD BL RD CNS802 BR BR RD 2 BR 1 RD BL RD OR OR T801 POWER TRANSFORMER RD C907 C904 1 2 1 2 CNP801 C979 R966 D903 R964 CNS801 BL 965 L801 COLOR TABLE C934 B C E RED OR ORANGE YL YELLOW GR GREEN SO801 R934 CNP804 2 1 C978 C935 R937 AC POWER INPUT 230V/50Hz AC POWER CORD 7 8 9 10 Figure 41 WIRING SIDE OF P.W.
CD-C471H TUNER PWB-H CT24 LT21 CT36 R366 R365 Q354 R384 C351 GRAY WHITE BK BLACK PK PINK TP302 C362 R332 R333 C326 C335 C334 E R323 C B C332 B C E C327 C325 C324 T305 LW OSC. C337 R335 C328 R331 R347 R348 T301 Q302 D301 C323 D302 X352 SHASSIS GND C301 L341 CNP301 G 2 LW ANT. C333 C331 C339 C381 C394 R349 C397 T302 MW ANT.
CD-C471H WAVEFORMS OF CD CIRCUIT STOP FOCUS 1 2 PLAY SERCH 5ms 0.50 V IC1 20 F.E 5ms 5.0 V IC1 54 DRF 0.5ms 10.0 V JP+ 7 0.5ms 10.0 V JP- 8 0.5ms 0.50 V JP 9 0.5ms 1.00 V TE 3 1 3 6 PLAY CUE 0.5ms 1.00 V HF NORMAL DISC TN0=01 4 0.5ms 5.0 V HFL 1 5 0.5ms 5.0 V TES 3 3 0.5ms 1.00 V HF 10 20ms 1.00 V SPO 11 20ms 2.00 V CLV+ 2 REVIEW PLAY TCD-712 (140mm) TN0=01 4 5 0.5ms 5.0 V HFL 1 0.5ms 5.0 V TES 3 6 50ms 10.0 V JP+ 7 50ms 10.0 V JP- 8 50ms 0.50 V JP 9 50ms 1.
CD-C471H TROUBLESHOOTING (CD SECTION) When the CD does not function When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items. Remove the cabinet and follow the troubleshooting instructions.
CD-C471H • When the CD tray fails to open or close. Is there following voltage input in specific state of IC701 pin 53? Open state: 0V Close state: 0V Intermediate state between open state and close state: 5V Check the OPEN CLOSE SW and the wiring from the IC701 pin 53 to the OPEN CLOSE SW. No Yes Is H output to IC2 pin 24 or 25 for 7 seconds when the OPEN/ CLOSE key is pressed?IC81 is defective. Replace it. Check the wiring of the IC2 pins 24 and 25, IC81 pins 1 and 3. No OK IC2 defective.
CD-C471H • Playback can only be performed when a disc is loaded. Is the Focus servo active? (Can you hear it working?) No Check the laser diode driver. Check the area around IC1(16) - (21) (focus servo circuit). No If the disc is not turning, the DRF should not change to "H". Yes Yes Does the DRF signal change from "L" to "H"? Check the spin system. Yes Yes No Is HF waveform normal (see the Fig. 46-1, 2)? Check the periphery of IC1 pins 41 and 42. Level is abnormal.
CD-C471H • Checking the spin system. Play operation is performed without disc. Yes Yes The turntable rotates a little. The spin driver circuit is normal. No Yes The turntable fails to rotate or rotates at high speed. Check the periphery of IC1 pins 23 to 27, pin 39, and pin 40, IC2 pin 12 and pin 13, IC3 to CNP3. • Checking the VCO-PLL system Play operation is performed when disc exits. Yes Although HF waveform is normal, TOC data cannot be read. Yes Check PDO waveform (Fig. 47).
CD-C471H FUNCTION TABLE OF IC IC2 VHiLC78622K-1:Servo/Signal Control(LC78622K) (1/2) Pin No. Terminal Name Input/Output 1 DEFI 2 TAI 3 PDO Output 4 VVSS — 5 ISET Input 6 VVDD — 7 FR 8 VSS Function Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.) Input For PLL Input — Input terminal for test. Pull-down resistor is integrated. Surely connected to 0V. Output terminal of phase comparison for external VCO control.
CD-C471H IC2 VHiLC78622K-1:Servo/Signal Control(LC78622K) (1/2) Pin No. Terminal Name Input/Output 49* PW Output 50* SFSY Output 51 SBCK Input 52* FSX Output Output terminal of synchronous signal of 7.35kHz divided from quartz oscillation. 53 WRQ Output Output terminal to stand by output of subcode Q. 54 RWC Input 55 SQOUT 56 COIN Input Command input terminal from microcomputer. 57 CQCK Input Clock input terminal to fetch command input, or pick up subcode from SQOUT.
CD-C471H IC1 VHiLA9241M/-1:Servo Amp.,(LA9241M) (1/2) Pin No. Function Port Name 1 FIN2 Connection pin for photodiode of pickup. RF signal is generated through addition with FIN pin, and FE signal is generated through subtraction. 2 FIN1 Connection pin for photodiode of pickup. 3 E Connection pin for photodiode of pickup. TE signal is generated through subtraction with F pin. 4 F Connection pin for photodiode of pickup. 5 TB Pin for input of DC component of TE signal.
CD-C471H IC1 VHiLA9241M/-1:Servo Amp.,(LA9241M) (2/2) Function Port Name Pin No. 51 CL 52 DAT Micro computer command clock input pin. Micro computer command data input pin. 53 CE Micro computer command chip enable input pin. 54 DRF (DETECT RF) RF level detection output. 55 FSS (Focus Serch Select) Pin to switch focus search mode. (± search/+ search for reference voltage) 56 VCC2 VCC pin for servo system and digital system. 57 REFI Pin to connect pass control for reference voltage.
CD-C471H IC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (1/2) Pin No.
CD-C471H IC201 RH-iX0171AWZZ:System Microcomputer (IX0171AW) (2/2) Pin No. Terminal Name Input/Output — Function 52 VDD 53 CD O/C SW Input Positive power supply CD open-close switch input 54 DISC No.
CD-C471H IC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (1/2) Pin No.
CD-C471H IC701 RH-iX0170AWZZ:System Microcomputer (IX0170AW) (2/2) Pin No.
CD-C471H IC601 VHiLC75396N-1:Audio Processor (LC75396N) Terminal Name Function 1-3* RF1C1-RF1C3 Terminal to connect capacitor of filter configuration for equalizer F1 band Connect the capacitor between LF1C1(RF1C1) and LF1C2(RF1C2) between LF1C2 (RF1C2) and LF1C3(RF1C3). 4-6 RF2C1-RF2C3 Terminal to connect capacitor of filter configuration for equalizer F2 band Connect the capacitor between LF2C1(RF2C1) and LF2C2(RF2C2) between LF2C2 (RF2C2) and LF2C3(RF2C3).
CD-C471H ICT21 VHiLC72720/-1:RDS Decorder (LC72720) Pin No.
CD-C471H IC3 VHiM56748FP-1: Focus/Tracking/Spin/Slide Driver (M56748FP) 15K Vref-in Vref-in 1 Stand TSD by OP1 Vref-out 2 23K Vref-out Gain1 4 Vctl1(–) 5 VM1(–) 6 VM1(+) 7 5K Gain1 10K VM1(–) VM1(+) 5K OP1 10K PA PA Gain4 OP1 10K Pre-driver 3 Standby 35 SS.
Date : Aug. 3, 1998 CD Stereo : CD-451H/C471H/C471W/C492/C492C Title No. : EAA -883 E Correction of Service Manual D Korrektur der Service Anleitung F Correction du Manuel de Service Model SERIAL No.
Date : Mar. 19, 1999 CD Stereo : CD-C471H/C471W No. Title : EAA-915 E Correction of Service Manual D Korrektur der Service Anleitung F Correction du Manuel de Service Model SERIAL No. (NEW) QUANTITY (OLD) ITEM CD-C471H ------------------------ ------------------------ 1,2 CD-C471W ------------------------ ------------------------ ----- MODEL General E We inform you that there is a printing error in the parts list of Service Manual as follows.
CD-C471W No PARTS CODE DESCRIPTION F804 92LFUSE-T402-E Fuse,T4AL 250V F901 F902 92LFUSE-T402-E Fuse,T4AL 250V FM SIGNAL R803 R802 D806 R965 4.7K D803 05 804 F901 T4A L 250V C936 0.1 (ML) C937 0.1 (ML) CH AN C808 D802 D801 C909 C933 R925 R907 R922 R918 R905 R964 1 2 3 C915 Q902 IC901 C923 R923 F901 T4AL 250V C977 C934 C935 4 3 2 1 R-CH 5 ENTER OHMS MIN. FRONT 6 OHMS MIN.
Date : Mar. 26, 1999 CD Stereo : CD-C440/C470/C471 Series CD-C451H/C445W Title No. : EAA-921 E Change of Parts D Abänderung der Teile F Changement de pièces Model SERIAL No. (NEW) MODEL CD-C440 Series/ CD-C445W CD-C451H/ CD-C470 Series CD-C471 Series QUANTITY (OLD) ITEM 901 ~ ------------------------ 1 901 ~ ------------------------ 1 901 ~ ------------------------ 1 General E We inform you that the parts code of following Service Manual have been changed.
