Krell Industries KAV-250cd C Service Manual Download | Manualshive

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Summary of Contents for KAV-250cd C

Page 1: ...THE LEAOER IN AUOIO ENOINEERINO KAV 250cd Compact Disc Player Service Manual v99 0 September 1999 ...

Page 2: ... Test EquipmentRequired Preliminary Test Procedure Burn in Procedure Final Test Procedures HDCD CBSTest Disc Contents 2 3 5 3 3 4 5 Schematic Diagramsand Bill of Materials are separately attached HDCD is theregistered trademark of PacificMicrosonics Inc ...

Page 3: ...oading mechanically isolated drive mechanism featuring a linear drive laser assembly DAC 20 bit Dual Burr Brown PCM 1702 devices Analog Outputs 1 pair balanced via XLRconnectors 1 pair single ended via RCAconnectors Digital Output 1 SPDIFvia RCAconnector Remote Control Wireless Infrared Dimensions 19w x 3 7h x 15d inches 48wx 9 4h x 38d centimeters Weight Unit Shipping 18Ibs 8 2 kg 28 Ibs 12 7 kg ...

Page 4: ...iacwith the dial still setto thepropervoltage Turnonagainto resetthemicrocontroiler c Observe that the Stand byLEDandthe HDCD LEDilluminate momentarily TheDisplaywindow will not illuminate until the Power buttonis pressed Pressthe Power button TheStand byLED will extinguish andthe Power LED illuminates TheDisplaywindow will illuminatethe following 0 track index M S d Make the proper balancedoutput...

Page 5: ...between it andthe AST 1 h Remove the CBS test disc andthen load the HDCD test disc Playtrack 1 TheVoltagereadingwill beapproximately 2 V Playtrack 2 TheHDCD LED will illuminate the outputvoltageis approximately 4 V or twice the voltageof track 1 the non HDCD track played Playtrack 1 TheoutputVoltagewill return to approximately 2 Vandthe HDCD LEDwill extinguish i Confirm that the digital outputssyn...

Page 6: ... Single Ended Non HDCD Output Voltage 3 950 V V 4 050V Track 1 HDCD test disc HDCD Output Voltage 7 900 V V 8 100V Track2 HDCD test disc Non HDCD Output Voltage 1 975V A V 2 025V HDCD Output Voltage 3 950V _ V _ 4 050V FrequencyResponse Use CBS test disc 60 Hz 1 kHz 0 dBr 0 02 dBr 60Hz Track7 index1 1 kHz Track8 index1 10 kHz 0 1 dBr 0 03 dBr 10 kHz Track9 index 1 16 kHz Track9 index 3 20 kHz Trac...

Page 7: ...125 4K 1 OK 16K Hz 4 Signal Noise L R Infinity Zerow oemphasis 5 Dynamic Range L R 1 kHz 60 dBw o emphasis 6 Frequency Response L R 0dB 4 8 17 31 Hz 7 61 127 251 499Hz 8 997 1999 4001 7993Hz 9 10 007 12 503 16001 17 989Hz 10 19 997 Hz Alsoused for pitch error 11 SweepFrequency Response 0 dB 5 Hz 22 05kHz 12 De emphasis Error L R 1 K 125 4K 10K 16KHz 13 Intermodulation Distortion SMPTE Twin Tone L ...

Page 8: ...THE LEAOER IN AUOIO ENGINEERING KAV 250cd Compact Disc Player Service Manual Schematics and Bill of Materials ...

Page 9: ... S INK UI01 LM7815 I 3 1 250 MA I5VA CI08 j__CI03 CI05 5 Vclo w l 400 i 50v_ 220 CI04 U102 C106 50V T 0 1uY LM7915 CRI04 N4001 T47uF50v 160MA HSI02 H T II CR105 5V1 IN4 001 TRIGGER GNDI RC5 SENSE UI03 R106 I0 WIRES TO J401 DAC BOARD 6 POWER ON lO 3FF i GNDI Re5 i00 SENSE 5 WIRESTO PARASOUND DATE ii12 98 2124198 2126 98 3126 98 DRAWN CHECKED Ro S R EC0 NO REV 0 I 471 2 475 3 484 4 USED ON KRELL Ind...

Page 10: ...I BA2 RA3 RB0 RBI RB2 P 3 RB4 RB5 RB6 RC2 RC3 RC4 RC5 RC6 RC7 U203A __i 2 60006500 26 CLKOUT RA0 RAI RA2 RA3 RB0 RB2 1 B3 RB6 RB7 RCO RC2 RC3 RC4 RC5 RC6 RC7 4 U205 R211 00K SWITCHPCB S201 PLAY 202 STOP FP 5V RN201 10Z FSENSE FRCS S204 PAUSE 1 3 205 STANDBY OPERATE 1 3 206 BACK_TRACK 207 NEXT_TRACK TO J402 I i0 ware ribbon 5 5 G 8 TRIGGER CR202 STANDBY FP 5V HDCD IPWR ON RC5 IN R214 383 R213 681 C...

Page 11: ...4 I G 47uF 50V SV 34064 T w 2 D303 14 74HC132 NOT INSTALLED U301 U303 R308 PMD 100 74HC132 2 67K 5V 0HDCD 25 WCK0 26 BCK0 24 LDAT 23 RDAT DGND IMUTE U303 74HC132 6 0MUTE R313 C 0301 MPS8099 0ENABLE 5 6 2 TITLE 3 4 KRELL Industries Inc I 0 HDCD DRAWINGNO 820035 DSCH SHEET 3 OF 6 ...

Page 12: ...406 182 CR403 C414 i C415 330UF 35V LGND ZEROLENGTH AGND ZERO LENGTH 15V RGND C420 330UF 35V I5V R409 R410 8 06K C421 R411 3 57K R412 WANT 5K POT WHY 8 ADJUSTMENT RC 220X 37 I C423 0 01uF R414 R415 R416 383 383 583 5 C422 R413 16800pF 127 RGND C425 R423 R424 8 06K R431 576 R425 3 57K R 26 R427 383 383 ISV R421 127 7 U408 2 0PA604 FULL SCALE 2v SE R417 1 00K 1 00M RGND C426 6800pF C42 0 01uF 383 C4...

Page 13: ...509 MPS8099 _ ISV RGND IN4148 8 U501 OPA2604 CR508 IN4148 RGND CR509 IN4148 CRSI0 IN4148 QSI0 MPS8099 I MPSS099 R522 61 9 K523 61 9 MPS8099 61 9 Q513 MPS8099 C505 0 1uF RGND R514 150 C506 0 1uF R519 150 R521 150 4 2ma 1 4ma 4 2ma 33ma K501 1 R528 R529 4 i0 0 5501 100nH RGND J504 C515 I FULL SCALE 2 0V RMS SE FULL SCALE 4 0V RMS DIFF Additionof Capacitors are to correct overshoot seen on square wav...

Page 14: ...R610 61 9 61 9 R609 R611 61 9 61 9 Q605 MPS8099 R612 61 9 330UF 35V LGND R613 61 9 MPS8599 _ Q608 CR607 2 IN4148 CR608 R622 R624 R626 IN4148 61 9 61 9 61 9 CR609 IN4148 R623 R625 61 9 61 9 61 9 Q610 MPS8099 C606 0 1uF NOT INSTALLED CR613 IN4001 R614 150 K601 9 13 8 o 4 1 16 R628 10 0 R629 i0 0 LGND L601 lOOnH J503 CH GND I FULL SCALE 2 0V KMS SE FULL SCALE 4 0V RMS DIFF S2 KRELL Industries inc TIT...

Page 15: ...nentNo Component Description 1910959500100 KAV 250cdPARTS SUPPLI 1990095950100 KAV 250cd PARTSBOUGHT 1422601000060 149000004022 1580055000044 1701110200790 176121100033 178702400001 1840904400230 1869595000095 1920330950140 1920540950105 194000000000 1960100000100 i960101700095 1960601900195 196095950001 HDCDFILTER PMD100 SMALL LED BLUE REMOTEW RECIEVER 2 METER2 COND 26AWG KRC 3 END CAP KAV 300i B...

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