Service manual

ManualsBrandsSharp ManualsCD PlayerCD-K491W

– 1 –

CD-K491W

No.S0883CDK491W/

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

VOLTAGE SELECTION ..................................................................................................................................................... 2

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 7

DISASSEMBLY .................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 11

ADJUSTMENT ................................................................................................................................................................. 12

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 16

TYPES OF TRANSISTOR AND LED................................................................................................................................16

BLOCK DIAGRAM ........................................................................................................................................................... 17

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ............................................................................................. 22

WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 52

TROUBLESHOOTING ..................................................................................................................................................... 53

FUNCTION TABLE OF IC................................................................................................................................................ 57

FL DISPLAY ..................................................................................................................................................................... 68

REPLACEMENT PARTS LIST/EXPLODED VIEW

CD-K491W

• In the interests of user-safety the set should be restored to its

original condition and only parts identical to those specified be

used.

SERVICE MANUAL

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

SHARP CORPORATION

CD-K491W mini component system consisting of CD-K491W

mini component system, CP-K491, CP-SW491, centre

(GBOXS0010AWM3) and surround (GBOXS0011AWM3)

speaker system.

Manufactured under license from Dolby Laboratories.

"Dolby", "Pro Logic" and the double-D symbol are trademarks

of Dolby Laboratories. Confidential Unpublished Works.

QSOUND and the QLogo are registered trademarks of

QSound Labs, Inc.

QSound is protected under US Patent Nos. 5,105,462 and

5,208,860 and foreign counterparts.

Summary of content (87 pages)

PAGE 1
CD-K491W SERVICE MANUAL No.S0883CDK491W/ CD-K491W CD-K491W mini component system consisting of CD-K491W mini component system, CP-K491, CP-SW491, centre (GBOXS0010AWM3) and surround (GBOXS0011AWM3) speaker system. Manufactured under license from Dolby Laboratories. "Dolby", "Pro Logic" and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. ©1992-1997 Dolby Laboratories, Inc. All rights reserved.
PAGE 2
CD-K491W SAFETY PRECAUTION FOR SERVICE MANUAL WARNINGS THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM.
PAGE 3
CD-K491W FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. SPECIFICATIONS CD-K491W ● Compact disc player section ● General Power source: Power consumption: Dimensions: Weight: Type: AC 110/127/220/230 - 240 V, 50/60 Hz 200 W Width; 270 mm (10-5/8") Height; 316 mm (12-1/2") Depth; 343 mm (13-1/2") 10.5 kg (23.2 lbs.
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CD-K491W NAMES OF PARTS CD-K491W 1. 2. 3. 4. 2 1 ■ Front panel 4 Disc Tray Disc Number Selector Buttons Disc Skip Button Open/Close Button 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22.
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CD-K491W 44. 45. 46. 47. 48. 49. 50. 51. 52. 53. 54. 55. 56. 57. 58. 59. 60. 61.
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CD-K491W CP-K491 CP-SW491 Sub Woofer 1. Woofer 2. Bass Reflex Duct 3. Speaker Terminals Front speakers 1. Super Tweeter 2. Tweeter 3. Woofer 4. Bass Reflex Duct 5. Speaker Terminals 1 1 3 2 5 2 3 4 GBOXS0011AWM3 Surround speakers 1. Tweeter 2. Woofer 3. Speaker Terminals GBOXS0010AWM3 Centre speaker 1. Tweeter 2. Woofer 3. Speaker Terminals 2 3 1 1 2 3 ■ Remote control 1. 2. 3. 4. 5. 6.
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–7– 9 8 7 6 5 AM 12:00 AM 0:00 Press the MEMORY button. Adjust the minutes by turning the jog dial. ➀ Perform steps 1 and 2 in the section "RESETTING THE MICROCOMPUTER", on page 42. ➁ Perform steps 1 - 9 above. To change the time display mode: Press the CLOCK button. ● The time display will appear for about 5 seconds. To see the time display: When the unit is on: ➀ Press the CLOCK button. ➁ Within 5 seconds, press the MEMORY button. ➂ Perform steps 6 - 9 above.
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CD-K491W 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.
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CD-K491W Front Panel (G2) x1 Washer (G4) x2 ø3x10mm Front Panel (D1) x1 (D1) x1 (G3) @x2 (F1) x1 ø3 x10mm (M1)x2 CD Switch PWB (D3) x4 ø3x10mm Dolby PWB (M2)x1 (N1)x3 ø3x10mm (G3) x2 (G1) x2 (C4) x1 Main PWB (G2) x2 (G3) x1 (D2) x1 Headphones PWB (G4) x1 ø3x10mm (E1) x1 (D3) x8 ø3x10mm (E2) x1 ø3x10mm Rear Panel Display PWB (M3)x12 ø3x10mm Tuner PWB Open (P1)x1 ø3x10mm Tape Mechanism (E2) x4 ø3 x10mm Cassette Holder (Left/Right) (Q1)x6 ø3x10mm Figure 9-1 Figure 9-4 (H1)x2 ø3x10m
PAGE 10
CD-K491W CP-K491 ( U1 ) x4 ø3 x12mm ( V1 ) x1 ø2.6 x10mm Tweeter Baffle Board (A2)x1 Shift Lever Net (A1)x1 CD Changer Mechanism Woofer CD Player Base CD Mechanism Be careful when installing the CD changer mechanism. Install the CD changer mechanism on the CD player base after the shift lever has been set in the highest position. Figure 10-1 Screw driver Super Tweeter (A5)x2 ø3x10mm CP-K491 STEP 1 REMOVAL PROCEDURE Front Speaker 1. Net .......................... 2. Baffle Board ........... 3.
PAGE 11
CD-K491W REMOVING AND REINSTALLING THE MAIN PARTS CD MECHANISM SECTION Perform steps 1, 2, 3,16, 17, 18, 19 and 20 of the disassembly method to remove the CD mechanism. Loading/Up/ Down Motor How to remove the loading motor (See Fig. 11-1) Motor PWB 1. Remove the screws (A1) x 2 pcs., to remove the loading motor. ( A1 ) x2 ø2.6 x5mm Figure 11-1 How to remove the pickup (See Fig. 11-2) 1. Remove the screws (B1) x 2 pcs., to remove the shaft (B2). 2. Remove the stop washer (B3) x 1 pc.
PAGE 12
CD-K491W ADJUSTMENT MECHANISM SECTION TUNER SECTION • Driving Force Check fL: Low-range frequency fH: High-renge frequency • AM IF/RF Signal generator: 400 Hz, 30%, AM modulated Torque Meter Specified Value Play: TW-2412 Tape 1: Over 80 g Tape 2: Over 80 g Torque Meter Frequency Display IF 450 kHz 1,602 kHz MW Band Coverage — 531 kHz (fL): T306 1.1 ± 0.1 V *2 SW1 Band — Coverage 3.2 MHz (fL): T307 2.0 ± 0.1V *2 SW1 Band — Coverage 7.3 MHz (fH): TC305 7.7 ± 0.
PAGE 13
CD-K491W • FM RF Signal generator: 1 kHz, 40 kHz dev, FM modulated Test Stage Frequency Frequency Display Setting/ Adjusting Parts Band Coverage — 87.5 kHz (fL): LT02 3.7 ± 0.1 V *1 RF 98 MHz 10 - 30 dB 98 MHz LT01 *2 *1. Input: Antenna, *2. Input: Anetnna, • FM Detection Signal generator: 10.7 MHz, FM sweep Instrument Connection Test Stage Frequency Frequency Display IF 10.
PAGE 14
CD-K491W 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. 14-1) 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.
PAGE 15
CD-K491W DOLBY DIGITAL DVD 1 /VCR 1 When you connect this unit to a DVD player which is playing a disc with the trademark, you can enjoy realistic, powerful sound by playing back the recorded signal through 6 speakers with the sound coming from the front left, front right, centre, surround left, surround right and sub woofer speakers. DVD 2 /VCR 2 To listen to a disc using the Dolby Digital mode: 1 2 3 Connect a DVD player. (See page 39.
PAGE 16
CD-K491W NOTES ON SCHEMATIC DIAGRAM • The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given. 1. In the tuner section, ( ) indicates AM < > indicates FM stereo 2. In the main section, a tape is being played back. 3. In the deck section, a tape is being played back. ( ) indicates the record state. 4. In the power section, a tape is being played back. 5. In the CD section, the CD is stopped.
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Figure 17 BLOCK DIAGRAM (1/5) – 17 – M M PICKUP IN SW4 M1 DISC MOTOR M2 SLIDE 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 IC1 LA9241M SERVO AMP. 15 16 27 23 29 FIN2 FIN1 E F 64 VCC1 62 LD0 Q1 TO FD SPO NC SLD CV+ 40 SLC 43 SL1 44 PU-IN SW +B1 SL+. SL–. DRF CL, DAT, SELIAL CONTROL/CE 51 52 53 20 JP– 6 23 36 41 43 +5V 53 ~ 58 Q91 Q93 26 RES. CQCK. COIN SQOUT. RWC.
PAGE 18
DGTL1 DGTL2 V1/V2 CD-K491W PWDA PWAD ICA12 NJM4580M LOW PASS FILTER & DIFFERENTIAL AMP +B7 AINR– A-GND +B7 8 ANAROG LCH 2 IN OUT AINL– IN 6 1 18 7 4 19 AINL+ OUT 16 20 17 15 11 12 13 14 27 26 22 ICA11 NJM4580M LOW PASS FILTER & DIFFERENTIAL AMP A-GND 25 1 7 9 A-GND DEM0 DEM1 SCK CLK CLK2L/R SL/SR IN D-OUT LS OUT RS OUT 10 21 TOS DVD2 DIGITAL IN JA11 DVD2 DIGITAL IN +B9 ICA15 ICA14 GP1F38R TC74HCU04 INVERTER IN 1 ICA16 TC74HCU15 SWITCH IN 4 IN 6 FROM CD UNIT IN IN 8 13 D
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CD-K491W AD RESET SUB WOOFER ON/OFF SS SO AC3 RESET SCK SI DEMO0 DEMO1 TO MAIN SECTION +B12 SCK CLK CLK2L/R FL/FR IN ICA19 AK4321 D/A CONVERTER 16 PD 6 DEM0 12 DEM1 13 XT1 5 LRCK 9 BICK 7 8 20 22 2 14 15 24 18 17 A-GND 2 8 19 29 37 44 53 65 68 71 3 34 82 87 89 80 GND ICA18 ZR38600 DOLBY AC-3 /5.
PAGE 20
6 TT01 CF302 1 LT02 LT01 AMP 2 OUT AM OSC 23 FMOSC SW1/SW2 OSC. 13 9 VCC 17 18 16 OUT IN SD 10 12 6 14 15 L R MUTING Q353 Q354 Q361 AM IN VOLTAGE REGURATER +B7 T307 T308 Q306 Q307 X352 4.5MHz +B7 1 FM Q360 FM +B 22 OSC 7 16 11 10 +12V 12 9 3 4 5 6 8 8 +B7 ICH11 MOTOR DRIVE 21 CE DI CL DO 13 MW +B Q362 +B7 SW1 +B 7 6 17 IC302 LC72131 PLL CONTROLLER 20 +B7 15 ICH11 MOTOR DRIVE IF IN Q308 Q309 FM MONO/ST T303 T304 7 21 AM IN T306 MW OSC.
PAGE 21
CD-K491W F1 1 F1 2 FD01 FL DIPLAY +B2 VF2 (AC) F2 62 F2 57 VF1 (AC) 5 ~ 31 , 39 ~ 53 RXD01 REMOTE SENSOR TO DOLBY SECTION 30 ~ 45 47 ~ 50 52~~ 71 73 75 29 RES 95 SCK 97 3 , 4 7 11 OR VE 2 SPE IN ~ 19 T1 RUN T2 RUN T2 A FP T2 B FP T1 CrO2 T2 CrO2 CAM-SW TAPE SOL TA MOT HIGH SP FR SP BIAS BEAT CUT TA R/P TA PB EQ.
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CD-K491W R2 1K R22 22K R25 1.5K M– SW4 Pickup In G R45 4.7K C29 4.7/50 0V 4V 2.4V + – LATOH C27 0.001 CL CLK DEF CE DAT FSS DRF + – SLOF 35 4.8V 34 0V 33 SL+ JP– SL– TOFF TGL JP+ C20 47/16 R32 C19 10K 1/50 R33 1.2K R34 22K 0V 2.5V 2.2V 2.2V REF SLEO + – R38 C23 470 0.002 0V 0V TES HFL + – 39 HF TP1 4.8V 38 0V 37 36 0V SLOF 2.5V SPO 2.5V 40 4.8V 6 R36 220K C 2 7 GND 6 5 4 3 2 1 10 0V 11 0V 12 0V 13 2V 14 2.5V 15 2.5V LD CNP2 C36 100/16 16 0V 17 4.
PAGE 23
CD-K491W CD SERVO PWB-B +B C23 0.0027 R53 C53 0.022 VCO CLOCK OSC CONTROL ERROR COERECT FLAG CONTROL 4.8V 6 VVDD 0V FR 7 1.2K 0V VSS 2.5V 2.5V XVDD 43 4.8V MUTER 42 4.8V RVDD 41 4.5V RCHO 40 2.0V RVSS 39 0V 4 VVSS 5 ISET 4FS DIGITAL FILTER 8 9 EFMO SLICE LEVEL 10 EFMIN 0V TEST4 33 0V D1 SS133 C56 0.022 CD2LD2M– +B C81 R83 47/16 3.9 NC 0V NC 0V NC TEST3 DOUT C2F CONT5 CONT4 0V 0V NC 4.8V NC 2.5V +B BI99 1 2 3 1 2 3 CNPR11 TO MAIN PWB P28 2-C CNS99 +B Q91 KTA1271 Y 0V R81 3.
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CD-K491W CNPF01 10 +B GND(D) +B +4V(µ-CON) GND(µ-CON) +B COM RES DAT STB SCK +4V +B +B 11 12 13 13 14 14 RG94 10K PE0 PD7 PD6 (DI)PD5 PD4 (DO)PD3 PD2 VSS2 VDD2 PD1 PD0 PC7 PC6 FRNT_RLY RF50 1K FAN CONT RF49 1K VOLT_SW RF48 1K AMP RF47 1K PB_MUT RF46 1K TA_T1/T2 RG55 1K REC_MUT RF44 1K TA_PB-EQ RF43 1K TA_R/P RF42 1K BEAT CUT RF41 1K TA_BIAS RF40 1K FR SPEED(M) RF39 K HIGH_SP RF38 1K TA MOTOR RF37 1K TAPE_SOL RF36 1K RG17 CAM_SW RF35 1K 10K T2_CRO S RF34 1K RG20 10K T1_CRO S RF33 1K RG21 10K
PAGE 25
CD-K491W CD GND(D2) CD GND(D1) GND(D) +7.3V(CD) +12V(M) +4.6V(D) +B 28 –15V –B 18 GND(A) +B 19 +12V(A) +B 27 GND(D) +B 29 +4.6V(D) +B 30 SWF-MUTE +B 31 REAR-MUTE +B 32 CENT-MUTE +B –B RG39 82 QG03 RG31 KTC3199 GR 1K 35 SW RLY(4) 36 REAR RLY(3) RESET POINT 37 CENT RLY(2) 38 VOLT SW 39 SP PROT 40 POSISTOR RG30 RG29 CG01 150 150 470/10 41 H/P SW 42 SP LEVEL 43 FAN CONT +4V 44 FRNT RLY(1) 45 POWER +B +B 3 +12V(M) 7 GND(M) +B 46 +7.
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CD-K491W PLAYBACK SIGNAL RECORD SIGNAL A QL11 KTA1266 GR DRIVER TAPE MECHANISM ASSEMBLY 0V 0V H + – M B TAPE SPEED L QL14 KTA1273 Y 12V +B 0V VRM1 3.3K(B) RM1 2.7K L H MOT+B REC FWD CAM SW M-GND F.A.S RUN PULSE +B SOL REC RVS SWM3 REC FWD SWM6 CAM SW 1 2 SWM5 F.A.S RL14 33K PHM1 SOLM1 SOL WTL11 MOT L MOT H 1 2 3 4 5 6 7 8 9 MOT +B T2 A-FP CAM SW M-GND T1 RUN-SW T2 PH-OUT +B SOL T2 B-FP T1 CrO2 T2 CrO2 10 11 12 13 1 2 3 4 5 6 7 8 9 +B +B RL15 10K 12V KR 2 RL16 2.
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CD-K491W MAIN PWB-A(2/5) QL17 C104 M TCHING TA-F/R SPEED 4.0V 1 TA–F/R SPEED 3 QL18 KRC104 M 2 3 0V TA-MOT-SW QL19 KRC104 M DRIVER 12V 1 0V 12V 2 +B 2 TA-MOT-SW M-12V 3 M-12V TA-SOL 3 0V 4 TA-SOL T2-A-FP 1 0V RL24 3.3K DL11 1SS133 0V 2 4.1V QL16 KRC107 M 3 CL13 3.3/50 5 6 7 8 9 TA-CAM-SW M-GND T1-RUN T2-RUN 1 0V TO MAIN SECTION P24 1-G 0V T2-B-FP T1-CrO2 T2-A-FP TA-CAM-SW M-GND T1-RUN T2-RUN 10 T2-B-FP 11 T1-CrO2 12 T2 CrO2 H:CrO2 L:NORM 13 TA T1/T2 H:T1 PB.
PAGE 28
CD-K491W A QP1 KTC RP53 100K CP58 0.068 RP51 1K CP41 2.2/50 B RP54 100K CP42 2.2/50 CP44 0.001 QP16 KTC319 RP52 1K S.W.MUTE CENTER MUTE C CNPR11 3 2 1 2 1 CP37 0.001 Q K CP38 0.001 CNSA11 DOUT GND TO DOLBY PWB P34 1-A CNS99 DOUT +4.3V GND TO CD SERVO PWB P23 11-D QP14 KTC3199GR CNPR12 CP31 CP32 0.001 0.001 ICR11 GP1F38T PHOTO DIGITAL OUTPUT /LED DIGITAL-OUT D LR01 2.2µH CR02 100/10 1 2 3 RR01 100 ZDR01 MTZJ3.3B CR01 0.022 RP35 100K RP36 100K RP33 1K RP34 1K CP30 2.
PAGE 29
CD-K491W MAIN PWB - A ( 3 / 5 ) QP15 KTC3199GR FM SIGNAL RP62 5.6K CFWP02 CP47 0.001 OUT6 RELAY4 OUT4 CP53 0.001 RP70 5.6K QP16 KTC3199GR 13 12 11 10 OUT5 9 8 7 6 5 4 3 2 +B GND(A) RELAY3 1 RP47 5.6K CP37 0.001 QP13 KTC3199GR FWP02 OUT6 RELAY4 OUT4 GND(M) OUT5 +12V(M) GND(A) FAN SW RELAY3 VOL SW PROT POSISTOR AMP 1 TO SPEAKER AMP.1 PWB P38 1-F CFWX11 13 RP48 5.6K CP38 0.
PAGE 30
CD-K491W SPE-ANA –15V +12V GND(A) LT IN GND(A) RT IN SPE-ANA –15V +12V GND(A) LT IN GND(A) RT IN 77 28 19 18 86 18 87 QZ01,QZ02: VOLTAGE REGULATOR (NC)RBASS1 LBASS1(NC) C IN GNDR R IN GND L IN BYPASSR BYPASSL 9 10 11 12 13 14 15 16 17 CZ52 1/50 CZ49 1/50 18 19 20 21 RZ73 10K R IN RZ72 10K +B CZ53 1/50 RZ74 10K L IN RZ70 10K –B CZ62 22/16 GNDC 8 RZ71 10K RZ69 10K CZ48 1/50 CZ65 10/50 +B 22 (NC)RBASS2 SLIN 7 CZ51 1/50 SRIN 6 CZ50 1/50 5 SWIN 4 23 (NC)RBASS3
PAGE 31
22 23 24 CQ06 0.001(ML) CQ04 2.2/50 CQ03 44 2.2/50 43 CQ05 2.2/50 CQ02 42 2.2/50 45 41 CQ01 2.2/50 40 39 CQ36 0.022(ML) 38 37 MSC6 CQ35 0.022 (ML) CQ34 0.47/50 CQ32 0.022(ML) CQ33 0.022(ML) CQ28 0.0047(ML) CQ31 0.47/50 47 46 (OS-CON) CQ29 100/10 CQ30 47/25 +B CQ25 CQ26 0.47/50 0.022 (ML) CQ27 0.022(ML) CQ24 0.0047(ML) ZDQ01 MTZJ5.1B CQ15 47/25 QXCC 25 26 27 28 29 30 31 32 33 34 35 36 +B RQ09 330 QXBC CQ23 0.
PAGE 32
H 1 2 3 C601 0.47/50 C634 0.082 (ML) R606 15K R605 150K C610 C611 2.2/50 0.1/50 R636 1K 4 Figure 32 SCHEMATIC DIAGRAM (11/20) – 32 – C616 0.15/50 R619 22K 0V DA CONT 20 VCC 19 17 REF 18 GND DA INT IN 21 DA INT OUT 22 2.3V 4.7V 0.6V 2.3V +B C629 0.068 (ML) R617 10K R618 15K C621 2.2/50 C620 2.2/50 C623 2.2/50 C622 2.2/50 C624 0.1/50 C630 0.22(ML) R616 15K R615 3.3K D601 1SS133 C628 0.082(ML) C627 0.022(ML) C626 0.1/50 R614 39K C619 100P C618 0.
PAGE 33
SO301 ANTENNA TERMINAL FM 75ohms C301 0.001 D304 1SS133 D303 1SS133 RT01 100K RF 1 2 3 CT01 18P(CH) CT02 0.01 CT04 0.001 1 2 3 BFT01 FM BAND PASS FILTER CT08 0.0047 D302 1SS133 VDT01 KDV147B CT06 0.022 0V 0V C319 0.022 0V R329 100K R327 5.6K R322 5.6K R328 C318 10K 0.022 CT03 4.7P 4 CT05 6.8P (UJ) 5 6 MIX RT03 22 TT01 FMIF CT11 15P (CH) 7 C320 0.0018 VD302-A KV1236Z23F RT06 10 RT05 47K RT04 47 CT13 3.
PAGE 34
CD D-IN +B 0V 0V 0V 0V 2Y 1Y GND 2C0 2C1 2C2 2C3 1C2 1C1 1C0 2G A 1G B 1C3 Vcc CA35 10/16 CA36 0.1 0V 1.7V 1.7V 0V 2.7V 0V 0V 2.8V GND 0V 1.7V 0V 3.4V 1.6V 3.4V 47K RA33 2.2K 1 2 3 4 5 6 7 8 0V GND A1 A2 3 3V 0V RA41 10K LA12 18µH LA16 18µH LA13 0.82µH CA51 100/10 RA11 47K CB12 100/10 –B DGND DEM0 DEM1 CB22 0.001 RA96 680 RA36 1K RA37 1K RA35 1K A+12V GND(V) +B V1/V2 1 0V 3 AGND CB15 0.
PAGE 35
CD-K491W ICA17 TC7WU04U DUAL2–INPUT NAND GATE A10 0V 1.6V 0V 3.9V 1.6V 0V 0V RA41 10K 4.6V TTL 24 CKS DVDD DVSS XT0 DZF 23 VREF 22 AVSS 21 AVDD 20 VCOM 19 XT1 PD BICK AOUTL 18 SDATA AOUTR 17 DEM1 16 LRCK 10 SMUTE CA74 0.001 1 2 3 4 5 6 7 8 9 CA75 0.1 CA76 0.1 C-CH 2.3V 2.3V SW -CH +B DIF1 14 DIF0 13 ICA20 AK4321 20BIT 2CH D/A CONVERTER +B +B +B 0V 2.3V BVDD 15 11 DFS 12 DEM0 2.3V +B CA82 0.1 +B RA83 100K QA02 KRA107 S -7.
PAGE 36
CD-K491W DISPLAY PWB-C1 CV92 100P 1 R-PLAY 1 CD11 0.022 CD10 220/6.3 RD57 39 +B F RE16 3.9K SWD04 MENU SWD27 RE27 5.6K PRE EQ. RE13 1.2K SWD16 SWD15 SWD14 SWD13 F-PLAY REC/ PAUSE HIGH EDIT NORMAL EDIT STOP SWD26 RE25 3.9K SWD12 SWD36 TIMER NC S1 VDD (4.1V) VDD4 S2 S3 (-28V) S40 (-30V) S41 S43 (0V) S44 S45 P35 (0V) P36 (0V) RD27 1K DISK 2 P34 DISK 1 P33 0V RD26 1K 0V P32 0V P30 (0V) P31 (0V) KEY6 RE51 8.2K RE21 8.2K KEY3 RE34 1.8K RE35 2.2K RE33 1.
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28 F2 F2 NC NC 15G 14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NC NC NC NC NC NC NC 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 S27 8 S26 7 S25 6 S24 S23 S22 S19 S21 S20 S18 S17 S16 S15 S14 S13 S12 S11 S10 S5 S9 S4 S8 S3 S7 S2 S6 CD-K491W 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 –B S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 +B S4 VDD S3 +
PAGE 38
CD-K491W QV13 KTC3199 GR CV17 47P CFWV11 A CV19 100/50 RV20 390 CV20 100/50 FR 12 CV16 470P 11 10 9 8 7 +B 6 5 4 NC 3 2 1 RV21 56K QV16 KTC3199 GR RV36 22K RV37 47K CV22 RV24 1K 15P CV12 2.2/50 RV18 1K CV18 47P 0V 13 12 0V RV69 0.2(1W) 37V 1 +B –B 0V -37V -36.5V 2 14 -36V 6 RV70 0.2(1W) 10 19 4 3 0V 8 RV30 CV26 0.2(1W) 0.022 7 0V RV28 10K C RY12 1K 0V 18 CY14 47P 0V 17 CV28 47/50 CV23 47/50 QY11 KTC3199 GR CY12 2.2/50 0V 0V QV14 0V KTC3199 GR CY11 2.2/50 4.
PAGE 39
CD-K491W SPEAKER AMP.2 PWB-F2 FM SIGNAL QV19 KTC3199 GR 4.0V RV41 56K CV33 0.1(ML) CV28 47/50 DV17 1SS133 RV40 56K SP2 FRONT-L 8 OHMS CV43 0.001 – CV41 CV39 0.022 0.022 CV38 0.022 CV36 0.022 DV23 1SS133 +B +B RV43 4.7(1/2W) 0V 0V + CV35 0.022 CV31 0.1(ML) DV24 1SS133 0V CV37 0.022 + SP1 FRONT-R 8 OHMS CV42 CV40 0.022 0.022 RLYY11 – CV44 0.001 –B + RV44 4.7(1/2W) SP3 CENTER 8 OHMS CV34 0.1(ML) CV45 0.001 DY12 1SS133 CV30 00/50 RV54 22K CV29 3300/50 0.6V 0V RY20 4.
PAGE 40
CD-K491W –VCC –VCC GND GND GND +VCC +VCC TO SPEAKER AMP.2 PWB P39 7-D CNPV12 –VCC –VCC GND GND GND +VCC +VCC TO SPEAKER AMP.1 PWB P39 7-H CNPX12 CNS904 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 A BI904 –B –B +B CNS903 BI903 +B B –B C901 0.022 R918 100 C902 47/25 C920 47/25 +B +4.6V(D) D R905 22(1/4W) C905 47/25 GND(D) +B R904 1.
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CD-K491W POWER PWB - D T991 POWER TRANSFORMER F995 T8A L 250V C954 0.22(ML) C956 0.22(ML) F996 T8A L 250V F991 T2.5A L 250V –B D993 C958 0.047 (ML) D994 C965 100/35 ZD952 MTZJ6.8C R954 220 VOLTAGE REGULATOR Q911 2SD2012 R953 220 D996~D999 1N4004S D999 D996 R913 560 R914 D906 1SS133 47 D997 SW991 VOLTAGE SELECTOR 230-240V F992 T2.5A L 250V D954 1N4004S C967 0.047(ML) D998 220V 127V 110V F990 T5A L 250V T.F. AC POWER SUPPLY CORD AC 110/127/220/ 230-240V 50/60HZ (242) C966 0.
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CD-K491W TO SPEAKER AMP.
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RAOKE B -A 02 BK BK BK BK BK BK BK BK BK BK BK BK BK RD 1 2 3 7 CNSF11 3 TO CD SERVO PWB P42 9-H CNP11 8 BIF12 14 14 13 12 11 10 9 8 7 6 5 4 3 2 1 1 TO CD SERVO PWB P47 11-G CNP12 9 RL20 40 ICF01 85 20 95 RF97 35 31 25 30 RF30 RF25 15 5 100 1 13 12 11 10 9 8 7 6 5 4 3 2 1 RL24 RG55 RF44 RF49 RF31 RF32 RF29 QG92 CH20 CH19 RH26 RH27 RH25 RH30 RH32 CK17 CK15 RK21 CK19 RK17 RK01 B B C C E E QK10 CK13 CK11 RK07 CK02 RK19 RK29 CK21 CK28 CK27 QK08 CK07 RK20 C
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CD-K491W CD11 A F CD09 CD06 CD10 1 2 RD57 CD05 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 51 RD39 1 3 55 2 60 RXD01 REMOTE SENSOR 65 70 80 SWD01 VOLUME JOG B 81 LD01 ICD0 75 85 1 CD28 RD10 RD SWD27 PHANTOM LEDD02 STOP RD49 SWD05 MENU SWD06 ITEM CD21 CNSD01 1 FWD02 RE22 RD59 9 7 5 3 1 10 8 6 4 2 LEDD03 FF RE13 RE12 RE14 SWD15 HIGH EDIT E SWD02 JOG LEDD01 F-PLAY SWD13 STOP RE16 CD18 RE15 CD19 WTP02 LEDD10 RE27 SWD16 REC/PAUSE
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CD-K491W DISPLAY PWB-C1 FLD01 SWD43 CD 0 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 RD42 50 30 15 RD34 10 5 CD02 100 1 LEDD19 LEDD16 LEDD17 SWD28 NORMAL WHD01 SWD40 DVD/ VIDEO2 RD29 RD36 SWD29 BYPASS RE29 RD62 SWD02 JOG RE33 RE32 RD27 RD28 6 RE53 RE52 QD08 RE35 3 2 1 SWD48 POWER STAND-BY RE37 RE36 RE39 SWD35 MEMORY SWD38 CLEAR SWD30 TUNING DOWN/ REWING JOG PWB-C4 1 2 3 SWD34 CLOCK RE38 SWD33 R-PLAY 1 2 3 SWD36 TI
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CD-K491W DOLBY PWB- G (TOP VIEW) FWA02 CFWU02 20 A CB16 FWA01 CFWU01 TO MAIN PWB P42 3-H 1 TO MAIN PWB P42 4-H ZDA01 ZDA02 LA11 CA96 10 CB17 1 CA95 CA73 CA79 E 10 9 1 CA93 CA83 CA72 CA57 CB11 7 5 LA16 CH56 CA67 CB21 DA15 ICA14 CA12 E LH53 CH55 CH53 DA11 CA33 CA35 CA51 LA13 CA18 C DA12 CB15 B CA68 QH51 XA11 CA52 DA14 CB20 CA11 LA17 CA17 RB09 1 CA15 3 DA13 C 3 2 CA62 CA98 2 CA50 5 4 CA64 11 7 6 CA16 4 13 9 8 CA58 CA25 6 10 CA63
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CD-K491W SOLENOID SOLM2 CD MOTOR PWB-K M2 SLED MOTOR + SENSOR PWB-J M3 T/T UP/ DOWN LOADING 1 2 3 4 5 6 CNS3A SW4 PICK UP IN CNP3A 1 2 3 4 5 6 CNS3B + M1 SPINDLE MOTOR + SW3 DISC NUMBER - RD WH GY WH GY WH 1 2 3 4 5 6 2 1 - PICKUP UNIT(306) BIM5 6 CNS1A 1 2 3 4 5 RD WH GY WH GY WH GY WH 1 2 3 4 5 6 7 8 16 15 17 20 R18 C11 D2 7 2 9 CNP10 Q93 D91 C81 E C B R83 CNPV11 TO SPEAKER AMP.
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SW1 SW2 MW GND FM 75Ohms SO301 ANTENNA TERMINAL D305 D304 D301 D302 D306 CT15 D303 D307 D311 T303 D309 L311 C312 E C B Q308 R318 T302 TC303 C308 TC302 B C E VDT02 D312 R320 D308 CT13 R321 C315 C331 TT01 R312 Q309 R319 T304 R316 DT01 1 2 3 4 5 6 7 8 9 CT16 ICT01 CT09 RT07 RT05 CT01 CT03 RT03 RT06 CT08 R310 RT02 CT07 1 2 3 BFT01 CT05 RT01 CT06 C338 VD301-1 C303 VDT01 C304 C305 CT11 C309 TC305 3 2 1 C334 Q362 3 2 1 R325 T307 VD302-A T308 T306 C336 C33
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CD-K491W C628 C630 C629 30 25 20 IC601 5 10 C601 15 1 C615 VR602 MIC2 VOLUME R609 C616 C610 C611 C613 R608 C612 C609 C608 C606 C633 R636 R605 C604 R603 VR603 DIGITAL ECHO R619 C614 18 C634 C605 C674 C602 35 C618 R614 C619 C617 R612 R604 R667 R668 R618 R615 C631 36 E C C672 B C673 D601 19 R606 R607 R670 R669 C627 C677 C632 C625 C621 C626 Q631 R616 R617 C620 1 ZD631 C624 C623 R610 P42 6-H R611 CNPU02 C622 BI601 TO MAIN PWB KARAOKE PWB-L 9 CNSU02
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CD-K491W TO HEADPHONES PWB P44 2-F TO FAN MOTOR P47 8-G TO MAIN PWB P43 7-A FWV91 CFWP01 FWP01 CNSV11 1 16 A WTV11 TO MAIN PWB P42 4-A 1 2 1 2 3 4 5 E C B CFWP02 RY57 CY57 QY51 CV29 CY53 CX13 CY56 CY54 RY14 E CV19 CV14 QV20 RV55 QV21 RV56 RV17 CV20 RV14 CV22 RV22 RV71 CV27 RY19 RV25 RV69 RV34 RV70 RV32 DV23 DV13 QX17 CV25 E C CV38 DV14 QV17 CV40 CV36 CV37 QX18 CV26 B C E B CV35 RX35 RV27 RV36 DX14 B C E RV28 B C E RV37 RX27 B C E QV13 RV54 CX26
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TO MAIN PWB P42 4-H CNPP02 4 3 2 1 CNS902 WH WH WH RD C906 C915 3 Figure 51 WIRING SIDE OF P.W.
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CD-K491W 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.
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CD-K491W TROUBLESHOOTING 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.
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CD-K491W • When the CD tray fails to open or close. Is there following voltage input in specific state of ICF01 pin 86? Open state: 0V Close state: 0V Intermediate state between open state and close state: 4.3V Check the OPEN CLOSE SW and the wiring from the ICF01 pin 86 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.
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CD-K491W • 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.55-1, 2)? Check the periphery of IC1 pins 41 and 42. Level is abnormal. Yes Yes Check the spin system.
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CD-K491W • 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, IC5 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. 56).
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CD-K491W FUNCTION TABLE OF IC IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (1/2) Pin No. Terminal Name Input/Output 1 DEFI Input Input terminal of defect detection signal (DEF). (Connected to OV when not used.) 2 TAI Input For PLL 3 PDO 4 VVSS — 5 ISET Input 6 VVDD — 7 FR 8 VSS 9 EFMO Output 10 EFMIN Input 11 TEST2 Input 12 CLV+ Outout Output for disk motor control. 3 values can be output with the commands. 13 CLV- Output Output for disk motor control.
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CD-K491W IC2 VHiLC78622K-1: Servo/Signal Control (LC78622K) (2/2) Pin No. Terminal Name Input/Output 49* PW Output 50* SFSY Output 51 SBCK Input 52* FSX Output 53 WRQ Output 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. Schmit input 58 RES Input Reset input terminal of LC78622. When turning on power, set it at "L".
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CD-K491W 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.
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CD-K491W IC1 VHiLA9241M/-1: Servo Amp. (LA9241M) (2/2) Pin No. Function Port Name 51 CL Micro computer command clock input pin. 52 DAT 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.
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CD-K491W ICQ01 VHiQS7777PF-1: Q-Sound Decorder (QS7777PF) Pin No.
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CD-K491W ICF01 RH-iX0254AWZZ:System Microcomputer (IX0254AW) Pin No. Port Name Input/Output 1,2 P00-P01 Input/Output 8-Bit input/output port. Input/output can be specified in 4-bit units HOLD release input. Port 0 interrupt input 3-10 P10-P17 Input/Output 8-Bit input/output port.
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CD-K491W ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (1/2) Pin No. Port Name Input/Output 1,2 (2*) P16-P17 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units Dual-purpose function P16: BUZ output P17: Timer 1 output (PWM output) 3-10 (5*-7*) P30-37 Input/Output 8-Bit input/output port. Input/output can be specified in 1-bit units Dual-purpose function Nchannel open output: 15V withstand rating 11 P70 Input/Output 4-Bit input/output port.
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CD-K491W ICD01 RH-iX0234AWZZ:System Microcomputer (IX0234AW) (2/2) Pin No.
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CD-K491W ICA18 VHiZR38600/-1: DOLBY AC-3/5.1CH MPEG2 AUDIO DECORDER (ZR38600 ) (1/2) Pin No. Terminal Name Input/Output 1* A0 2 GND — 3 SS_ Input Serial host interfase: Slave select input (SPI) 4 TMS Input ICE interfase mode selection (TAG) 5 INT_ Input External interrupt input. The interrupt signal is valid when it is asserted for 2XTI cycles or longer. 6 VCC 7* D14/RDY Output — Input/Output — Function Address bus. The address bus is always active.
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CD-K491W ICA18 VHiZR38600/-1: DOLBY AC-3/5.1CH MPEG2 AUDIO DECORDER (ZR38600 ) (2/2) Pin No. Terminal Name Input/Output 54 SDD Output 55 VCC — 56* GPIO2 Input/Output General-purpose I/O pin 57* GPIO1 Input/Output General-purpose I/O pin 58* GPIO0 Input/Output 59 VCC 60 GND 61 SPFRX 62 63* 64 — — Function Data output for serial ports B, C and D Used to connect a power supply of +3.3V ±5% General-purpose I/O pin Used to connect a power supply of +3.
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CD-K491W ICA18 VHiZR38600/-1: DOLBY AC-3/5.
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CD-K491W FLD01 : VVKBJ613GK/-1 15G 14G FL Display 13G 12G 8G 7G 6G 5G 3G 2G 1G CO 11G 10G 9G S4 S10 S7 S9 S3 f S8 e B21 B7 B14 B1 B8 B15 B1 B8 k b g (15G ‘13G) B14 S6 S5 a j h S11 4G B7 m n r p c S1 S2 d 15G 14G 13G 12G P1 P2 (2G) DP 11G 10G 9G – – – – – – – – – – – P3 – – P4 – – – – – – P5 S10 S9 S7 – – – – P6 S11 – S8 – – – – 8G 7G (1G) 6G 5G 4G 3G 2G 1G – – – – – – – – – – – – – – – – – B7 B7
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CD-K491W PARTS GUIDE MODEL CD-K491W CP-K491, CP-SW491, CENTER(GBOXS0010AWM3) and SURROUND(GBOXS0011AWM3) speaker system Constibute CD-K491W. “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For U.S.A. only Contact your nearest SHARP Parts Distributor to order.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W NO.
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CD-K491W ! NO.
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CD-K491W NO.
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CD-K491W NO. PRICE RANK PARTS CODE SWM3(250-9) SWM4(250-10) SWM5(250-11) SWM6(250-12) TMV01 TMX11 92LM-SW1676A 92LM-SW1676A QSW-F9003AWZZ 92LM-SW1676B QTANA0601AWZZ QTANA0601AWZZ J J J J J J AC AC AG AD AH AH WHD01 WTL11 WTP01,02 WTV11 QCNCW015FAWZZ QCNCW012NAWZZ QCNCW623CAFZZ 92LCONE5P52287 J J J J AB AE AB AC DESCRIPTION NO. Switch,Leaf Type [REC FWD] Switch,Leaf Type [REC RVS] Switch,Leaf Type [F.A.
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CD-K491W NO.
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CD-K491W NO. 907 908 909 911 SP8 SP9 PRICE RANK PARTS CODE 92L394-0041 92L372-0094 92L372-0101 92L351-0156 VSP0012WBF08A VSP0050TBK48A J J J J J J DESCRIPTION NO.
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CD-K491W CD-K491W 306-2 A 306 306-1 701 306-3 B 304 701 302 704 C 702 702 301 D 303 703x2 E M1 F 305 M2 305x2 G SW4 H PWB-K 1 2 3 4 Figure 13 CD MECHANISM EXPLODED VIEW – 13 – 5 6
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CD-K491W CD-K491W 608 x24 610 x2 254 235 615x4 214 291 A PWB-G 612 237 608x2 PWB-C3 613 B 241 FLD1 PWB-C1 604x12 604x3 264 217 286 210 219 615x2 220 215 240 265 PWB-C2 212 221 C 223 218 229 223-1 223-3 225B 225C 223-2 PWB-A 613 243 216 225D 222 PWB-C4 622 250 (250-1–250-12) 225A ICR11 225E 224-2 224-1 224-3 605x6 604x2 224 622 D 233 Silicon Grease 244 604 PWB-L 613 242 226 607x2 607x2 ICV01 604 289x3 611 615 615x2 226 288 614x4 615 606 x2 ICX01 E 238 29
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CD-K491W CD-K491W 261 616 260 A 260-3 260-2 609x2 260-1 202 282 B 269 SW3 281 C 281 270 281 203 609x2 205 D 204 201 619 272 CD MECHANISM 617 E 603 275 262 604 257 612 273 263 276 267 277 281 617 277 274 618 F 281x2 280 279 266 268 SW2 262 283 278 G 602x2 281 258 604 259 M3 271 620x4 PWB-B H 604 1 PWB-J 281 2 3 4 Figure 15 CABINET EXPLODED VIEW (2/2) – 15 – SOLM2 5 6
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CD-K491W CP-K491 TWEETER SP3(L-CH) SP4(R-CH) SUPER TWEETER SP5(L-CH) SP6(R-CH) A C1,2 Capacitor RED (SP5,6) 901 BK YE BK RED B 909x2 903 BK WOOFER SP1(L-CH) SP2(R-CH) 906 905x2 (with Capacitor C1,2) 912 C D 905x2 SP3,4 E 909x2 911 SP1,2 F 908x4 900 G SUPER TWEETER SP5(L-CH) SP6(R-CH) 910 TWEETER SP3(L-CH) SP4(R-CH) H C1,2 Capacitor 2.7µF,100V,Electrolytic(N.P.
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CD-K491W CP-SW491 901 907 A 900 B C 903 D 905x4 SP7 E 906 F 902 RED BLACK G SP7 H 1 2 3 4 Figure 17 SPEAKER EXPLODED VIEW (2/3) – 17 – 5 6
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H 1 2 3 4 Figure 18 SPEAKER EXPLODED VIEW (3/3) – 18 – 908x6 BK 902 900 911 901 with Capacitor C1 RD 5 907x2 904 907 x2 SP8 908x3 906 909x2 SPEAKER TERMINAL(906) SPEAKER TERMINAL TWEETER SP12 (L-CH) SP13 (R-CH) WOOFER SP10 (L-CH) SP11 (R-CH) C1 WOOFER SP10 SP11 TWEETER SP12 SP13 SP10(L-CH) SP11(R-CH) SPEAKER TERMINAL C1 2.2µF, 100V 909x4 913x4 903 900 911 x2 910x2 B SP9 WOOFER SP8 BK C 908x2 YL C1 2.7µF, 100V Film Capacitor WOOFER SP8 C1 2.