akira MC-VCM2 Service Manual Download Page 7 | Manualshive

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Model No.: MC-VCM2
Version: 1.0

3. ELECTRICAL SPECIFICATION

POWER SUPPLY

230V/50HZ

TEST CONDION:

a. Receiver input test signal:

•

FM 22.5KHZ deviation with 1000 HZ through 75 OHM dummy
antenna.

•

AM 30% modulation with 400 HZ through loop antenna.

b. Electrical equalizer switch set “FLAT” position, bass booster switch set to

off position.

c. Speaker output impedance 4 OHM (headphone output impedance 32 OHM).
d. Reference output power: 500mW.

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Summary of Contents for MC-VCM2

Page 1: ...COMPACT DISC PLAYER Service Manual ...

Page 2: ... 3 Model No MC VCM2 Version 1 0 MODEL MC VCM2 ...

Page 3: ... 4 Model No MC VCM2 Version 1 0 CONTENTS IMPORTANT SAFETY NOTES 5 SPECIFICATION 7 ELECTRICAL SPECIFICATION 8 EXPLODED VIEW 14 PART LIST 15 TROUBLESHOOTING GUIDE 17 ...

Page 4: ...ntrols or adjustments of procedures other than those specified herein may result in hazardous radiation THE LASER COMPACT DISC PLAYER FUNCTIONS BY HELP OF INVISIBLE LASER LIGHT AND IS EQUIPPED WITH SAFETY SWITCHES TO AVOID EXPOSURE WHEN DOOR IS OPEN AND SAFETY INTERLOCKS ARE DEFEATED IT IS DANGEROUS TO DEFEAT OR BYPASS SAFETY SWITCHES DANGEROUS VOLTAGE Uninsulated dangerous voltage that may be of ...

Page 5: ...rning The product shall not be exposed to dripping or splashing and that no objects filled with liquids such as vases shall be placed on the product Ventilation warning The normal ventilation of the product shall not be impeded for intended use ...

Page 6: ...tep FM frequency range U S A 87 5 107 9 MHz 0 2 MHz per step AM 10 channels Radio station memory FM 10 channels Europe 230V 50Hz Power supply Main unit U S A 120V 60Hz Remote control 2 x 1 5V UM 3 batteries Max power output 10 W Operation Temperature 1 40 C 32 104 F Main unit WxHxD 218 x 290 x 120mm Dimensions Speaker Each WxHxD 180 x 290 x 120mm Weight Approximate 6 25 kg not including packing ma...

Page 7: ...t test signal FM 22 5KHZ deviation with 1000 HZ through 75 OHM dummy antenna AM 30 modulation with 400 HZ through loop antenna b Electrical equalizer switch set FLAT position bass booster switch set to off position c Speaker output impedance 4 OHM headphone output impedance 32 OHM d Reference output power 500mW ...

Page 8: ...106MHZ dB 18 Intermediate frequency rejection 90MHZ dB 40 Spurious rejection 106MHZ dB 50 Selectivity 300KHZ EUR 98MHZ dB 35 Overload distortion DEV 75KHZ 100mv input 98MHZ 2 5 AM suppression modulation 30 98MHZ dB 30 25 Audio response 6dB 98MHZ HZ 20 4500 20 4000 L R dB 22 16 100HZ R L dB 22 16 L R dB 23 17 1KHZ R L dB 23 17 L R dB 22 16 Stereo separation pilot modulation 10 98MHZ 1000vU input 10...

Page 9: ...ion 5mv m input 80 modulation 100mv m input 999KHZ 4 7 Signal to noise ratio 5mv m input 999KHZ dB 38 30 Intermediate frequency rejection 603KHZ dB 45 40 Image rejection 1404KHZ dB 36 28 AGC 10dB 100mv m input 999KHZ dB 40 35 Selectivity 9KHZ EUR 999KHZ dB 20 15 Band width 6dB 999KHZ KHZ 4 12 2xIF 4 10 Whistle modulation 1 5 100mv m input 3xIF 4 10 Audio fidelity 6dB 5mv m input 999KHZ HZ 20 2400 ...

Page 10: ...sis error TCD 781 dB 0 2 0 5 Interruption SBC 444A mm 0 8 0 6 Black dot SBC 444A mm 0 8 0 6 Finger prints SBC 444A TNO19 TNO18 Frequency response 3dB TCD 781 HZ 20 20000 Signal to noise ratio JIA A Filter TCD 781 dB 70 60 Channel unbalance TCD 781 dB 2 Linearity error 40dB SBC429 dB 2 Max Vol TCD 781 mV 20 Residual hum noise Min Vol TCD 781 mV 3 Minimum VOL hum noise 1KHZ 0dB TCD 781 mV 2 4 ...

Page 11: ...put 0 05 0 2 Headphone 1 THD output level CD 1KHZ 0dB mW 50 Super woofer output level CD 0dB 1KHZ mV 1200 1500 Maximum volume 47KOHM load Super woofer distortion JIA A Filter CD 10dB 1KHZ input speaker reference level output 47KOHM load 0 15 0 4 Output level difference FM 0dB level 60dBU deviation 40KHZ dB AM 80 modulation 5mV m 3 5 CD 10dB 1KHZ 3 5 AUX 500mV 1KHZ 3 5 ELECTRICAL EQUALIZER CONTROL ...

Page 12: ...equency response 3Db 1KHZ 10mVinput Speaker output HZ 25 10000 50 9000 Line output 60 S N 1KHZ 10mVinput JIA A Filter Speaker output dB 60 LINE OUTPUT CD 1KHZ 0Db 47 k ohm load Item Unit Nominal Limit 1800 Output level mV 1800 300 THD JIA A Filter 0 02 0 1 S N JIA A Filter dB 80 75 Frequency response Ref CD 1KHZ 0dB 3dB HZ 20 20000 Channel separation JIA A Filter dB 60 Channel unbalance dB 1 Video...

Page 13: ...Model no MC VCM2 Version 1 0 4 EXPLODED VIEW 14 ...

Page 14: ...2 SPONGE LCD 3 13 MAIN PCB 1 14 PAN WASHER S SCREW M3x8 3 15 NUT M3 3 16 CONNECT PLATE 1 17 M SCREW M3x10 1 18 AUDIO PCB 1 19 W SCREW W3 5x10mm 2 20 TRANSFORMER 1 21 BINDING S SCREW M3x16mm 6 22 W SCREW W2 6x10mm 1 23 METAL WASHER 1D3 0D18 THK 1 1 24 RUBBER FOOT 3 25 S SCREW D3x10mm BLACK 3 26 BATTERY DOOR 1 27 BATT COVER SCREW 1 28 75 Ohm SOCKET COVER 1 29 BINDING S SCREW D3x14 BLACK 1 30 REAR CA...

Page 15: ... BINDING S SCREW D3x20mm 4 39 WASHER TUBE 4 40 CD RUBBER CUSHIN 4 41 CD DECK 1 42 CD DECK COVER 1 43 SPRING SHAFT 1 44 CD DOOR GEAR 2 1 45 STEEL SHAFT 1 46 CD DOOR GEAR 1 1 47 SPRING COMPARTMENT 1 48 DUMPING GEAR 1 49 BINDING S SCREW D2 6x8 9 50 CD BRACKET 1 51 RIGHT BUTTON 1 52 EARPHONE PCB 1 53 SPIRAL SHEET 1 54 W SCREW W3x14 wd8 2 55 SPRING STOPPER 1 56 SAFETY COVER 1 ...

Page 16: ... 12 7 SP REAR CABINET 2 8 RUBBER FOOT 6 9 WOODEN SUPPORT S 6 10 NATURAL RUBBER 16 11 W SCREW W3x10 8 12 TWEETER SPEAKER 2 13 PAN WASHER S SCREW D2 6x10 4 SPEAKER BOX NO PART NAME QTY 1 INLAY PVC RMT PVC 1 2 CAB FRONT RMT ABS 1 3 REMOTE KEY PAD 1 4 REMOTE KEY PAD 1 5 REMOTE CONTROL PCB 1 6 CONTACT BATT RMT 1 7 CONTACT BATT RMT 1 8 CONTACT BATT RMT 1 9 CAB REAR RMT 1 10 DOOR BATT RMT 1 ...

Page 17: ... Remedy 1 Is power supply connected well 1 Re plug the AC power cord 2 Is batteries of the remote control dead Change batteries of remote control 3 Is the desired mode selected 2 Press related button according to the instruction above 4 Is disc loaded correctly 3 Load the disc correctly and close the compartment lid securely No playing 5 Is the compartment closed No display 1 Has TV been well conn...

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