Arcam-DivaCD62-cd-sm(1)维修电路原理图.pdf

CD62DiVA CD62 Compact Disc Player (Text)Service Manual ARCAMARCAMIssue 1.0RadioFans.CN 收音机爱 好者资料库 Contents List ! Contents list ! Circuit description ! Service guide ! Circuit diagrams ! Component overlays ! Circuit board parts list ! General assembly parts list RadioFans.CN 收音机爱 好者资料库CD62 (text) Circuit Description Summary The main Motherboard/Display PCBs for the Diva CD players may be assembled as three different versions: ! DiVA CD62 (text) - With alternate components fitted and the 92DAC upgrade connections omitted (L933AY). ! DiVA CD72 (text) - With the standard set of components fitted (L899AY). ! DiVA CD92 (text) - With analogue components and connectors omitted, for use as a host motherboard for the plug-in 92DAC (L934AY). All systems are based on a Sony kit, comprising CDM14BL-5BD25 CD transport / loader / laser mechanism, micro-controller and fluorescent display. Power Supplies The CD62 may be fitted with any of the following transformers dependant on supply voltage required:- ! 230VAC only - part number L849TX ! 115VAC only - part number L850TX ! 100VAC only - part number L851TX Later models are fitted with L867TX which is a 230/115VAC transformer. The mains transformer has three secondary windings: 1. 13.7V 0V 13.7V to provide 12V(A) supplies (IC201 and IC205) for the audio output circuitry via regulators IC201 and IC205. 2. 9V-0V-32V to produce the digital, motor drive and fluorescent display grid supplies: +11V(U) Unregulated supply for relay drive and +5V(D) supply +7V (IC200) Mechanism and motor driver supply +5V(D) (IC202) General digital logic supply +5V(A) (IC203) Supply to DAC -30V (IC204) Display grid voltage. 3. 0-5V to provide an AC supply for the display filament. Relay Mute Control This circuit drives a relay to un-mute the analogue output 5 seconds after the unit is powered on, and quickly mutes the output when the unit is switched off. The circuit works effectively as an “AND” gate. If AC is present on the transformer secondary winding and the 5-second timer composed of R222 and C221 has reached the threshold voltage (Vbe of TR200 + Vbe of TR201 - Vce of TR202, or 1.0V), the relay coil is connected to +11V (referenced to 0V_3 as required by the 9DACs internal circuitry) via TR204. When AC is removed, C231 discharges quickly through R225, the base voltage of TR204 rises and the relay coil voltage is removed, muting the output. TR203 resets the timer by discharging C221 quickly at turn-off. Remote Control/PIC Micro Remote control data is received from the IREye on the display PCB and buffered by TR300 and TR301. The Programmable Interrupt Controller converts the RC-5 format data into the NEC format required by the Sony micro. Motor Driver The status of the drawer is indicated to the micro by two micro switches INSW and OUTSW on SK205. The micro controls the drawer motor via driver IC303. Clock Buffering The clock and data signals LRCK, ADATA and BCLK from the mechanism connector SK300 are double buffered by IC300 before being delivered to the DAC. Power-On/Reset The power-on reset signal XRST (or RESET) is generated by R409, C410 and IC404. When the power is turned on, C410 is initially uncharged and pin 11 of IC404 is at high voltage, and thus the output is low. After a short time, C410 is charged via R409; IC404 pin 11 is then low, and the output switches high (RESET is de-asserted). DAC & System Clock The DAC is a Burr Brown PCM1716E, the DAC is configured for hardware control. Digital audio is input on pins 1, 2 & 3 in standard Red Book Audio format, i.e. Word Clock, Bit Clock and Data. The system clock is based around 16.9344 MHZ crystal X400 and transistor TR402. This produces a stable clock with low jitter. IC404A & B buffer the clock as linear buffers. IC404C & D buffer the individual mech & DAC clock lines. Analogue Output Left channel: IC400A and IC400B are cascaded 69kHz 2nd order low-pass Bessel filters. The output devices internal to both op-amps in IC400 are “pulled down” to the negative supply rail to force operation in class A (one output device is conducting at all times and crossover distortion is eliminated). C448 AC-couples the output, the muting relay shorts the output to ground through 120 ohm series resistors, and 3N3 Polypropylene shunt capacitors are used to swamp cable capacitance, ensuring stability and making up the 5th pole of the filter. The right channel is the same as the left channel. IC401A & B are used as the buffer and filter. Microcontroller & Display Board The system microcontroller IC100 serves the following functions: ! Control of the mechanism & decoder on the CDM14 mechanism ! Control of mute, attenuation and de-emphasis for the DAC ! Direct drive of the fluorescent display ! Remote control decoding ! Keyboard scanning The keyboard scanning works by connecting the keys to a resistor ladder on an ADC input to the micro. Pressing a key presents a unique voltage to this input, which the micro is pre-programmed to interpret accordingly. The remote control data contains a Customer Code that identifies this as an Arcam product. The diode network D100 to D106 configures the micro to accept this code. Remote Bus Carrier Filter & Demodulator Remote control commands can be delivered over wire to SK500 for multi-room applications. Incoming signals are attenuated and clipped by resistors and D500. L500 and C508 form a parallel resonant circuit at approximately 37kHz. This demodulates the incoming signal and the output is passed to IC501A where it is chopped, low pass filtered and fed to IC501B to provide the RC5 output signal. Digital Output The decoder on the mechanism assembly generates an SPDIF format digital output signal. This is passed to buffer IC500A. IC500B through E are used in parallel to provide a transformer less 75-ohm source impedance to a single phono socket SK501. Optical digital output via IC502 is also tapped off the digital output signal via IC500F. Jumper Settings / Technical Specifications Jumper Description Jumper CD62T Settings CD72T Settings CD92T Settings Filter smoothing disable PL200 Not fitted Off On Filter smoothing disable PL201 Not fitted Off On IC201 Regulator bypass PL202 Not fitted Off On IC201 Regulator output enable PL203 On On Off IC205 Regulator bypass PL204 Not fitted Off On IC205 Regulator output enable PL205 On On Off System clock source select PL300 Pin1 & 2 Pins 1 & 2 Pins 2 & 3 Main board clock power enable PL400 On On Off Main board PCM1716E DAC enable PL401 On On Off Main board output relay enable PL402 On On Off CD62T / CD72T CD Mechanism Sony CDM14BL-5BD25 Laser pick-up 3 beam DAC conversion system Multi-level Delta Sigma Effective resolution 16 bits (24 bit capable DAC) Dynamic Range 100dB Signal to Noise ratio (CCIR) 104dB Harmonic distortion (0dBFS 1kHz) 0.005% Harmonic distortion (0dBFS 10kHz) 0.005% Frequency response (-0.7dB) 10Hz to 20kHz Output level (0dBFS) 2.3VRMS Output impedance 120 ohms Minimum recommended load 5 k Coaxial digital output (75 ohm) Class 2 Power consumption (max) 32VA Size W/D/H (mm) 430 x290 x84 Weight, net 4.6kg (CD92T 5.6kg) 12345678ABCD87654321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_AGENDA01_1127 CD62T RLEASEMotherboardl933ct_2.1.ddb - L933_2.1.prjA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCambridge CB5 9PBCD62T - TOP LEVEL SCHEMATICCircuit DiagramL933CTTGP19-Jul-2001INITIALSDate Printed67SheetofNotes:FILAFILBL933C2_1L933C2_2.1.schFILAFILBBCLKADATALRCKRC5 IP17MHZRESETDIGOPEMPHASISL933C3_1L933C3_2.1.schDEEMLRCKADATABCLKRESET17MHZL933C4_1L933C4_2.1.schDIGOPRC5RPL933C5_1L933C5_2.1.schPOWER SUPPLIESMECH INTERCONNECTSDAC AND OSCILLATORRC5 INPUT AND DIG OUTPUTS0V_10V_20V_SIG0V_MOT0V_DIG0V_30V_9DACFIX151FIXING HOLE 3.2FIX150FIXING HOLE 3.5FIX152FIXING HOLE 3.5FIX153FIXING HOLE 3.5FIX157FIXING HOLE 3.2FIX155FIXING HOLE 3.5FIX156FIXING HOLE 3.5FIX154FIXING HOLE 3.5(EARTH BY IEC SOCKET)C1501N0 CDC1511N0 CDC1521N0 CDC1531N0 CDC1541N0 CDC1551N0 CDC1561N0 CD0V_DIG0V_DIG0V_DIG0V_DIG0V_DIG0V_DIG0V_DIGSP100STARPOINTL933C7_1L933C7_2.1.schL933C1_1L933C1_2.1.schDISPLAY PCBDISPLAY AND MICROCONTROLLER2.10V_DIG0V_9DACLK6010R0 MFLK6000R0 MFPlease refer to the CD72T (Master) schematic if changes are to be made to this schematic!USE EXCLUDE NF WHEN CREATING BILL OF MATERIALSProduction ReleaseNF01_1127TGP18 July 200112345678ABCD87654321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_AGENDA01_1127 CD62T RLEASEMotherboardl933ct_2.1.ddb - L933C2_2.1.schA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCambridge CB5 9PBCD62T - POWER SUPPLIESCircuit DiagramL933CTTGP19-Jul-2001INITIALSDate Printed27SheetofNotes:LNENELSK200IEC3C2003N3(X1Y2)C2013N3(X1Y2)C203220N(X2)NEUTRALLIVENEUTRAL2L2006U8HL2016U8HNEUTRAL2FS201T160MAFS200T250MA115V230V ONLY115V ONLYEARTH LEAD8M101EL200EARTH LEAD(IEC INLET TO CHASSIS)123456SK202MOLEXPWR6(FOR AUX TOROID)SW200BA1010SW200AA1010LIVE2C2023N3(X1Y2)C204100N CDC205100N CDC206100N CDC207100N CDC208100N CDR2001R0 FUR2011R0 FUBR201DF01M+C2111M0 35V+C2121M0 35V12PL2002WVERTJUMPER12PL2012WVERTJUMPERJP200JUMPERJP201JUMPERVinIADJAVoutOIC201LM317TVinIADJAVoutOIC205LM337TR2081K8 MFR2091K8 MFR206220R MFR207220R MF+C216100U EL+C217100U ELD2031N4148D2041N414812PL2032WVERTJUMPER12PL2052WVERTJUMPER12PL2042WVERTJUMPER12PL2022WVERTJUMPERJP202JUMPERJP203JUMPERJP205JUMPERJP204JUMPER+12V(A)-12V(A)0V_1BR200DF01M+C2103M3 ELVinIADJAVoutOIC200LM1086-ADJR203330R MFR2141K6 MF+C218100U ELD2011N4148D2001N4148D2021N4148D2071N4148+C2281M0 10V+7V0V_2HS201TO220HS30REG+11V(U)1234SK201MOLEXPWR4(FOR AUX TOROID)VinIADJAVoutOIC202LM317TR218270R MFR220820R MF+C219100U ELD2081N4148C209100N CDD2061N4148+C220100U EL+5V(D)0V_2+11V(U)VinIADJAVoutOIC203LM317TR219270R MFR221820R MF+C222100U ELD2121N4148D2111N4148+5V(A)0V_1Motor drive supplyAnalogue op-amp suppliesDAC supplyDigital +5VC215100N PE+C2231M0 25V+C2241M0 25VR20410R MFR20510R MF+C2291M0 10VR21110R FUD2131N4003+C225100U EL 100VVinIADJAVoutOIC204LM337TR2161K0 MFR21522K MF+C227100U EL 100VD2051N4148-30VFR21733K MFFILAFILB1234567891011121314151617181920212223SK203FFC23V+12V(A)0V_9DAC-12V(A)+5V(A)+5V(D)+11V(U)Power connector for 9DAC PCB+C226100U EL 100VC213100N PEC214100N PED2091N4148D2101N41480V_3R22410K MF+C230100U EL+C23110U ELAC1AC2AC1Relay control for AC detectHS202TO220HS30REGFiliament supply115V230VAC_3TX_19TX_20TX_16TX_18BLUBLUBRNBRNR2101R0 FUR2121R0 FUR228100R MFR227100R MFRLYPWRD2145V1 400MWNFNFR2021M5 VR25R22310K MFR21310R FUD2151N4148+C221100U ELTR204BC557BR2291K5 MFR22610K MFAC2R23010K MF0V_30V_3R2252K2 MFR222470K MFTR200BC549BTR201BC549BTR202BC549BTR203BC549BNFNFNFNFNFNFNFNFNFNB: CABLE ASSEMBLY L920CA GOES BETWEEN BRN BRN AND BLU BLU FROM MAINS SWITCH TO BACK OF PCBL920CACA1L920CAHSHS200TO220HS08REG2.1TGP18 July 2001201116230V115V9191518161713451027TX200L849TXProduction Release01_112712345678ABCD87654321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_AGENDA01_1127 CD62T RLEASEMotherboardl933ct_2.1.ddb - L933C3_2.1.schA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCambridge CB5 9PBCD62T - MECH CONNECTS, MOTOR DRIVE AND IR MICROCircuit DiagramL933CTTGP19-Jul-2001INITIALSDate Printed37SheetofNotes:123PL3003WVERTJUMPERFILAFILBFlexfoil connector to Display PCB1234567891011121314151617181920212223242526272829303132SK302FFC32VData connector to DAC PCB1234567891011121314151617181920212223242526272829303132SK301FFC32VHDCDDEEMRA0RB6RB5RB4RB0XRSTAMUTEBCLKDATACLKSUBQSENSXLTLDONAMUTESQCKSCOR1234567891011121314151617181920212223SK300FFC23VXRSTLPHRA21RA32RTCC3MCLR4VSS5RB06RB17RB28RB39RB410RB511RB612RB713VDD14OSC215OSC116RA017RA118IC302PIC16C54XTRA0AMUTERB0RB4RB5RB6RMINXRST+5V(D)R311100K MF+5V(D)DEEMIREYEC304100P CDD3001N4148+5V(D)BCLKADATALRCKGND1O/P In23Bias4LoadIn5LoadOut6Vcc7Vcc89O/P Out10IC303LB164112345SK3038K2005C30710N CDD3014V7 400MWLOADOUTLOADINGNDINSWOUTSW+7VR3126K8 MFC303100N CD+C306100U ELX300CST4.00C302100N CD+C305100U ELC300100N CD+5V(D)Flex connector from CDM14BL-5BD25 mechR300330R MFR304330R MFR306330R MFR30910K MFR30810K MFR31010K MFR30710K MFRC5 IP+5V(D)0V_DIG+7VADATALRCK0V_DIG+5V(D)0V_9DACR301330R MFR302330R MFR305330R MFC301100N CD0V_DIGLRCKADATABCLK17MHZTR300BC549BTR301BC549B0V_DIG0V_DIG0V_DIGRESET-30VF+5V(D)0V_DIGSCORIREYERMINHDCDLDOUTLDINSENSXLTAMUTECLKLDONDATASQCKSUBQLOADSWXRSTLPHDEEMDIGOP0V_MOT0V_MOTLOADSWLDINLDOUTEMPHASISMotor DriveR3036K8 MF+5V(D)C308100N CD(From 9 DAC PCB)JP300JUMPER(Master clock select jumper)(From crystal oscillator)R313100K MFR31410K MF0V_DIGR31510K MF0V_DIG12IC300A74HCU0434IC300B74HCU0456IC300C74HCU0489IC300D74HCU041011IC300E74HCU041213IC300F74HCU04147IC300G74HCU04NFNFNFNF2.1TGP18 July 2001Production Release01_112712345678ABCD87654321DCBAISSUEDRAWING NO.23425DRAWING TITLEDrawn by:DATEFilenameECO No.DESCRIPTION OF CHANGEJ:Change_ControlECO_AGENDA01_1127 CD62T RLEASEMotherboardl933ct_2.1.ddb - L933C4_2.1.schA & R Cambridge Ltd.Pembroke AvenueDenny Industrial CentreWaterbeachCambridge CB5 9PBCD62T - DAC, OSCILLATOR AND ANALOGUE OUTPUTSCircuit DiagramL933CTTGP19-Jul-2001INITIALSDate Printed47SheetofNotes:X40016.9344MHZC44133P CDR42633K MFR42733K MFC438100P CDC439100P CDR4301K0 MFTR402BC547BC41210N CDC4401N0 CD34IC404B74HCU0412IC404A74HCU0456IC404C74HCU041011IC404E74HCU0489IC404D74HCU04147IC404G74HCU04R4294M7 MFR428330R MFL40333UH AXC43710N CD0V_DIGDEEM+5V(DAC)0V_SIG0V_SIG0V_SIG+5V(DAC)0V_DIG+5V(DAC)0V_DIG0V_SIG0V_SIG+5V(DAC)+5V(DAC)R40910K MFD4001N41480V_DIG+5V(D)R4134K7 MFR4152K7 MFR4106K8 MFC416560P PPC418220P PPR4162K7 MFR4031K8 MFC4221N3 PPC420220P PPR4193K9 MF321IC400ANJM2114567IC400BNJM21140V_SIG84IC400CNJM2114321IC402ATL07284IC402CTL072C424470N PE0V_SIGR4211M0 MFR4144K7 MFR4172K7 MFR4116K8 MFC417560P PPC419220P PPR4182K7 MFR4041K8 MFC4231N3 PPC421220P PPR4203K9 MF321IC401ANJM2114567IC401BNJM21140V_SIG567IC402BTL072C425470N PER4221M0 MF84IC401CNJM2114C402100N PEC403100N PEC404100N PEC405100N PEC406100N PEC407100N PE+12V(A)-12V(A)0V_SIGR405120R MFR406120R MF0V_SIG0V_SIG1EMCSK400PHONO2HG0V_SIG0V_SIGC434100N CDEMC1EMC10V_DIG0V_DIGR400330R MFR4251M0 MF1213IC404F74HCU04R401330R MFR408120R MFR407120R MFC400100N CD12PL4002WVERTJUMPERJP400JUMPER+5V(D)+5V(A)LRCKADATABCLK+C410100U ELRESET17MHZ0V_SIGC4263N3 PPC4273N3 PPDACLKDACLK12PL4012WVERTJUMPERJP401JUMPER(DAC enable jumper)R43210K MFR4391M0 MFR43110K MF+5V(DAC)R4024K7 MFR4124K7 MF0V_SIGC44610P CDC44710P CD0V_DIG0V_DIGL4007F003C414100N CDL4027F003C413100N CDR435680R MFR436680R MF-12V(A)-12V(A)R4331K0 MFR4341K0 MF-12V(A)-12V(A)R437100K MFR438100K MF(Oscillator enable jumper)(Master clock to DAC)(Master clock to mech)Output filterOutput filterEMC ShieldSH400EMCPHONOLRCIN1DIN2BCKIN3CLKO4XTI5XTO6DGND7Vdd8Vcc2R9AGND2R10EXT1R11NC12VOUTR13AGND114Vcc15VOUTL16NC17EXTL18AGND2L19Vcc2L20ZERO21RST22CS/IWO23MODE24MUTE25MD/DM026MC/DM127ML/IIS28IC403PCM1716#R42322K MFR42422K MF+C44810u CERA+C44910u CERAR4422K2 MFR4432K2 MF0V_SIG0V_SIGL4017F003L4047F00