Philips Mcm 9 Service Manual
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Service hintsIn case of symptom „skipping tracks“ performf ollowing actions: 1. VERIFY THE COMPLAINT PLAYABILITY CHECKuse CD-RW Printed Audio Disk . . . . . .7104 099 96611 TR 3 (Fingerprint) TR 8 (600 µblack dot) maximum at 01:00 • playback of these two tracks without audible disturbance playing time for: Fingerprint ≥10seconds Black dot from 00:50 to 01:10 • jump forward/backward (search) within a reasonable time 2. CLEAN THE LENS CD DRIVE – LENS CLEANINGBecause the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive cleaning fluid. It is advised to use “Cleaning Solvent B4”, available with codenumber 4822 389 10026. The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. It is advised to clean the lens gently (don’t press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direction of cleaning must be in the way as indicated in the picture below. 3. MEASURE THE LASER CURRENT CD DRIVE – LASER CURRENT MEASUREMENTThe laser current can be measured as a voltage drop on resistor 3822. Typical value 55mV (DA11 disc drive). If the value is higher than 80mV (DA11 disc drive) or the current increases just after switching the laser on - the laserdiode is most probably defective. In that case the CD drive has to be replaced.4. GENERAL HINTSSince the HF pre-amplifier is integrated into the new ”CD18“ signal processor the well-known eye pattern signal is not av ailable as external signal and cannot be measured any- more. Also measuring the offset voltages is not necessary because the new signal processor contains an automatic offset compensation. However the circuitry offers some new aspects for checking the system: - the Monitor voltage shows if the sensitivity is set correctly (attention: ESD sensitive line!): CD DA: 150mV CD RW: 180mV - the Focus search algorithm is divided into 4 steps: 1 ststep: CD DA sensitivity 2nd step: CD DA enforced sensitivity 3 rdstep: CD RW sensitivity 4thstep: CD RW enforced sensitivity The used sensitivity can be found out by either measuring the Monitor voltage or counting the up/down movements of the OPU until focus is found. e .g. when a normal CD DA is played back Monitor voltage should measure 150mV respectively Focus should be found within the first up/down movement of the OPU. In case a higher sensitivity setting can be observed than defined, there are following possible reasons: - disc scratched or dirty - poor reflectivity of the disc - disc not conform standard - lens of the OPU dirty - laser power too low D # D D2839 100n 8 VREF_OUT 5 VSSA1 7 VDDA1 4 SENSE 6 IREF LASER80 1 LPOWER 3 MONITOR 2 EXTFILTER D1 3871 1R0 3822 F820 2818 100n F821 F819 12K 3872 F816 282147n 22K 3818 2820 100n +3.3V +ANALOG Vref_OPU MONITOR LASER (mV = mA) LASER CURRENT max 80mA (DA12) 1.6V 150mV CD DA 180mV CD RW Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it in order to avoid that little particles make scratches on the lens. TABLE OF CONTENTS Service Hints ....................................................................10-1\ Pin description ..................................................................10-3 IC Block Diagram .............................................................10-4 Tr ay-motor Board ..............................................................10-6 Circuit Diagram CD Main Board .........................10-7 to 10-12 Layout CD Main Board .....................................10-13 to 10-14 Exploded View.................................................................10-15 Pa rtslist ........................................................................\ ...10-16 Universal Loader (Single Disc Tray Loader) WMA MP3 version This document describes the version with the Sanyo CD drive DA11VF. The CD drive used in a specific application is stated on the type plate, located on one of the side walls of the changer module. Block Diagram ..................................................................10-5 10-1 10-1
10-210-2Service hints The following steps have to be done when replacing the CD mechanism: 1. Disconnect flexfoil cable from the old CD drive 2. Put a paperclip onto the flexfoil cable to short-circuit the contacts (fig.1) 3. Remove the old CD drive 4. Remove paperclip from the flexfoil cable and connect it to the new CD drive 5. Position the new CD drive on its studs 6. Remove solder joint from the Laser unit (see below) CHARGED CAPACITORS ON THE SERVO BOARD MAY DAMAGE THE CD DRIVE ELECTRONICS WHEN CONNECTING A NEW CD MECHANISM. THAT«S WHY, BESIDES THE SAFETY MEASURES LIKE ¥ SWITCH OFF POWER SUPPLY ¥ ESD PROTECTION ADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN. fig.1 Attention:The laser diode of this CD drive is protected against ESD by a solder joint which short-circuits the laser diode to ground. For proper functionality of the CD drive this solder joint must be removed afterconnecting the drive to the set. Emergency open CAUTIONService hints Dismantling of Drawer 1. Open the drawer and release 2 catches as shown in fig. 2 2. Pull drawer out. fig.2 Assembling of Drawer 1. Check if slider is on the right side ®see picture below. 2. If necessary - move slider to the right end position first. 3. Insert the Drawer. In case of a Supply fault, the drawer can be opened manually. 1. Remove the top cover of the set to get access to the CD Module. 2. Proceed as shown in picture below.
10-3 10-3 SYMBOL PIN DESCRIPTION LPOWER 1 Laser power supply EXTFILTER 2 10 nF capacitor for Laser start-up control MONITOR 3 Laser monitor diode SENSE 4 OPU ground reference point for MONITOR measurement VSSA1 5Analogue ground 1 IREF 6 Reference current pin (24K Ω resister to analogue ground) V DDA1 7Analogue supply voltage 1 VREF_OUT 8 Servo reference voltage D1 9 Diode voltage/current input (central diode signal input) D2 10 Diode voltage/current input (central diode signal input) D3 11 Diode voltage/current input (central diode signal input) D4 12 Diode voltage/current input (central diode signal input) R1 13 Diode voltage/current input (satellite diode signal input) R2 14 Diode voltage/current input (satellite diode signal input) CSLICE 15 10nF capacitor for adaptive HF dataslicer V DDA2 16 Analogue supply voltage 2 V SSA2 17 Analogue ground 2 OSCOUT 18 Crystal/resonator output OSCIN 19 Crystal/resonator input V SSA3 20 Analogue ground 3 DAC_GND 21 Audio DAC ground DAC_RP 22 Audio DAC right channel differential output (positive) DAC_RN 23 Audio DAC right channel differential output (negative) DAC_VREF 24 Audio DAC decoupling point (10uF//100nF to ground) DAC_LN 25 Audio DAC left channel differential output (negative) DAC_LP 26 Audio DAC left channel differential output (positive) DAC_VPOS 27 Audio DAC positive supply BUF_VPOS 28 Audio buffer positive supply BUF_IN_R 29 Audio buffer right input BUF_OUT_R 30 Audio buffer right output BUF_OUT_L 31 Audio buffer left output BUF_IN_L 32 Audio buffer left input BUF_GND 33 Audio buffer ground LKILL 34 Kill output for left channel (configurable as open drain) RKILL 35 Kill output for right channel (configurable as open drain) CDT_RDY 36 CD-Text to micro ready flag CDT_DATA 37 CD-Text data to micro CDT_CLK 38 CD-Text micro clock CFLAG 39 Correction flag output (open drain) V SSD1 40 Digital ground 1 V DDD1 41 Digital supply voltage 1 SDI 42 Serial data input (loopback) WCLI 43 Word clock input (loopback) SCLI 44 Serial bit clock (loopback) EF 45 C2 error flag DATA46 Serial data output WCLK 47 Word clock output SCLK 48 Serial clock output CLK16 49 16MHz clock CLK4_12 50 Configurable 4MHz or 12MHz clockRESET 51 Power on reset (active low) SDA 52 Micro interface data I/O line (open drain output) SCL 53 Micro interface clock line RAB 54 Micro interface R/W & load control line (4-wire) SILD 55Micro interface R/W & load control line (4-wire) STATUS 56 Servo interrupt request line/decoder status register/DC offset value readback RCK 57 Subcode clock SUB 58 P to W subcode SFSY 59 Subcode frame sync SBSY 60 Subcode block sync VSSD2 61 Digital ground 2 DOBM 62 Bi-phase mark output (externally buffered) V DDD2 63 Digital supply voltage 2 RA 64 Radial actuator FO 65 Focus actuator SL 66 Sledge actuator MOTO1 67 Motor output 1 MOTO2 68 Motor output 2 V SSD3 69 Digital ground 3 V DDD3 70 Digital supply voltage 3 V1 71 Versatile pin 1 V2 72 Versatile pin 2 V3 73 Versatile pin 3 V4 74 Versatile pin 4 V5 75 Versatile pin 5 TEST1 76 Test pin TEST2 77 Test pin TEST3 78 Test pin TEST4 79 Test pin LASER 80 Laser drive SYMBOL PIN DESCRIPTION PIN DESCRIPTIONCD AUDIO DECODER - SAA7824
INTERNAL BLOCK DIAGRAMCD AUDIO DECODER - IC SAA7824 CD audio decoder, digital servo & filterless DAC with integrated pre-amp & laser controlSAA7824 EFM DEMODULATOR MICRO INTERFACE CONTROL PART BIAS GENERATOR VREF_OUT CONTROL FUNCTION OUTPUT STAGES D2 D4 R1 R2 SCL SDA CD-TEXT INTERFACETEST TEST1TEST2 TIMING OSCINOSCOUTCLK16CLK4_12RA SL DIGITAL PLLSRAMRAM ADDRESSERSUBCODE PROCESSOR SBSYSFSY SUB RCKSTATUS DECODER MICRO- CONTROLLER INTERFACE RESET VERSATILE PINS INTERFACE KILL DEM DAC SDIWCLISCLI SERIAL DATA (LOOPBACK) INTERFACE EFDATAWCLKSCLK SERIAL DATA INTERFACE PEAK DETECT EBU INTERFACE AUDIO PROCESSOR ERROR CORRECTORFLAGSMOTOR CONTROL DOBMCFLGMOTO1MOTO2 V1 V2 V3 V5 RKILL SILDRAB V4 D1 D3 HFPASS FILTERDATA SLICER & THRESHOLD CON- TROL IREF MONITOR LASER MONITOR ADC LASER LASER POWER CON- TROL LOGIC LKILL INTERFACE CONTROL SENSE LPOWER EXTFILTER DC OFFSET COMPENSATIONVOLTAGE BUFFER HF & LF CAPTURE D1-D4 SUM ANTI ALIASDSIC ADC TEST3TEST4 CDT_RDY CDT_DATA CDT_CLK DAC_VPO DAC_RP DAC_RN DAC_LP DAC_LN DAC_VREF DAC_GNDBUF_IN_R BUF_IN_L BUF_OUT_R BUF_OUT_L BUF_VPOS BUF_GND CSLICE FO HEADPHONE BUFFERS 10-410-4
10-610-6 1810 H2 1811 F3 2814 B2 2820 A2 2830 G1 3811 G1 3812 F2 3813 B2 3814 B2 3815 B2 3816 F2 3820 G3 3830 G1 3831 G1 3832 G1 6830 G1 7810 B2 9801 H1 TRAY MOTOR207 TRAY MOTOR BOARD / copper side view TRAY SWITCH motor board ICD03 Phonic stage .1, 01032004 NC TRAYTRAY SWITCH1811 MOVING END POSITION CLOSED OPEN TRAY-MOTOR BOARD (UNIVERSAL LOADER) TRAY_IN F811 C2 F812 C2F816 C2 F820 B3 F830 A5 NC 1811 C22814 C3 2820 B32830 A4 3811 D2 Indication Tray Position MOTOR DRIVER 3820 B3 3830 A4 3831 A33832 A3 6830 A47810 B4 F810 C1 GND GND +12V 45 A B C D A SW_INFO TRAY_OUT 3812 B2 3813 C2 3814 C3 3815 C2 3816 B2 B C D 1810 C1 12345 1 TRAY MOTOR MOTOR BOARD UL ICD03,05032004 +12V 23 220R3831 7 OUT+ 5 OUT- 8 VP 1 7810 AMM7072A THERMAL PROT GND 6 IN+ 2 IN- 3 4 1 2 3 4 5 6 7 8 41 208FMN-STK-A 1810 to/from CD main Board 1805 SPVF 18113 BZX384-C5V16830 10n 2814 100n 2830 220R3830 220R 3832 39K 3814 82K 3815 100K 3813 3820 2R2 1u0 2820 10K 3812 10K 3816 10K 3811 F830 F811 F820 F816 F812 +5V1 +5V1 +5V1 +12V +12V +12V +5V1 F810 M
10-7 CIRCUIT DIAGRAM CD SECTION * V1,V2 is input,v2,v3,v4 is output Alternative SONY-KSM213VCH TEST POINTS: NOTE:Tnn=TEST POINT (PAD 1.0mm) F X1 FOMOT- E RAD+ 1V7 VREF MOTOR2 RA FOC+ FOC- D MOT+ A SLSLE+ B C SLE- LDOUT1+ OUT1+ RAD-VR MDMOT+ MOT- SLE- SLE+ HOME_SW VCC X1 E D A B C F LD VR MD FOC+ RAD+ RAD- FOC- VREF SE_CFLG 1V7 SE_REST VCCHOME_SW MOT+ MOT- SLE+ SLE- OUT1+ VREF VREF DAC_LRCK SE_SCL DAC_LN V4 SE_LRCK SE_CFLG SE_CLK V5 DAC_BLCK SE_SDA SE_BLCKSE_EF V3 V5 DAC_LP DAC_DATA SE_RESET DAC_RN STAT US SE_DATA V3 V4DAC_RP 3V3_CD VB 3V3_CDA 3V3_CDA 3V3_CDA 3V3_CD 3V3_CD 3V3_CD 3V3_CDA 3V3_CD 3V3_CD 3V3_CDA 3V3 8V 5V C40 0.1uF C52 0.1uF R34 3K3 C56 10pF R41 8K2 C57 0.1uF T31 + C35 47uF/6.3V 12C32 0.1uF C31 100uF/6.3V T305 R71 470R T32 R37 5K1 C38 0.1uF+ C46 100uF/6.3V 12 C33 100pF +C60 100uF/6.3V12 T33 Q2 BC807-25 +C53 100uF/6.3V12 R60 100R T301 R67100K R40 3K9 C26 0.1uF C43 0.1uF R106 0R C36 0.1uF R52 4.7K R5410R R36 5K1 T34 R107 2R2 FB61K@100MHz R70 18R C30 2.2nF CN9 DA11B//JST 16 FMN-STK-A1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 IC4 SAA7824HL 1234567891011121314151617181920 2122232425262728293031323334353637383940 4142434445464748495051525354555657585960 6162636465666768697071727374757677787980LPWR EXTF MONITOR SENSE VSSA1 IREF VDDA1 VRFO D1 D2 D3 D4 R1 R2 CEQ VDDA2 VSSA2 OSCO OSCIN VSSA3DACGND DARP DARN DAREF DALN DALP DAVP BUVP BUIR BUOR BUOL BUIL BUGND LKILL RKILL CRDY CDAT CCLK CFLG VSSD VDDD SDI WCLI SCLI EF DATA WCLK SCLK CLK16 CLK12 RESETSDA SCL RAB SILD STATUS RCK SUB SFSY SBSY VSD2 DOBM VDD1 RA FO SL MOTO1 MOTO2 VSD3 VDD2 V1 V2 V3 V4 V5 TEST1 TEST2 TEST3 TEST4 LASE T306 R65 24K C39 0.1uF + C49 470uF/16V 12 T35 R44 2K7 T302 R39 6K8 T308 R49 8K2 C29 0.1uF R38 3K9 R58 2R2 R61 100R T36 R57 4K7 R5510K R53 2R2 Q4BC807-25 R64 10R T304 R45 10R T303T37 1801 ph61 2 3 4 5 6 C54 0.1uF R35 0R T309 C44 0.1uF T307 R6691R R42 100K C59 22nF T38 C42 0.1uF R68 4K7 R48 1K T308 C48 22nF T39 R63 4R7 C51 0.1uF Q1BC817-25 1 2 3 R69 4K7 T310 T30 IC3 MM1469PH/D9258 1234567891011121314 1516171819202122232425262728 DO1.1 DO1.2DI1.1 DI1.2REG REO MUTE GND1DI2.1 DI2.2 DO2.1 DO2.2GND2 OPOUT OPIN- OPIN+ DO3.1 DO3.2 DI3.1 DI3.2 VCC1 VCC2 VREF DI4.1 DI4.2 DO4.1 DO4.2 GND3 T304 R62 100R L1 100uH C106 0.1uF C45 0.1uF C28 100uF/6.3V R51 100R R59 4K7 T311 D1PMEG2010EA C27 0.1uF C47 47nF C50 0.1uF + C58 100uF/6.3V 12 L5 100uH/1A T313 Q3BC817-25 1 23 C34 2.2nF +C55 47uF/6.3V12 T312 R46 10K R5610K HOME_SW HOME_SW FOR ORIENTATION ONLY 10-7
10-8 CIRCUIT DIAGRAM AUDIO SECTIONThe C79 ,C91 must be placed as near to the CD18 as possible Notes: Optional CD_RCH CD_LCH AMP_VCCAGND DAC_LN DAC_LP DAC_RN DAC_RP CD_LCH AGND CD_RCH CD_LCH DAC_LP CD_RCH DAC_RPDAC_LNDAC_RN CD_LCHCD_RCH AMP_VCC 5V C75 220pF C84 1.5nF C83 100uF/6.3V T56 C77 100uF/6.3V R86 47R C95 220pF C78 1.5nF T50 R93 18K - + IC11B MJN4558 56 7 84 R92 1K T51 R82 18K R84 22K C93 100pF T52 R88 22K C91 1.5nF T53 C80 100pFC41 0.1uF C87 0.1uF C92 1.5nF R95 22K R110 100R R87 4K7 C86 100uF/6.3V R91 1K C88 220pF - + IC11A MJN4558/YD4558 32 1 84 R83 4K7 C90 100uF/6.3V R90 18KR99 18K R112 22K R94 4K7T54 C85 220pF C82 0.1uF R111 100R C96 1.5nF R98 22K T55R97 4K7 C79 1.5nF R109 22K FOR ORIENTATION ONLY 10-8
NOTE:Tnn=TEST POINT (PAD 1.0mm) D18 D21 A6 A8 A7D20 A17D17 D30 A2 D26 A12 A1 D22 D29 D31 A10 A16D16 D23 A4 A5 A15D25 A11 R/W A3 A18D19 D28 D27 OEBD24 A13 A9 A14 VDD_FLASH VDD_FLASH A19 A[1:20] R/W CS0 OEB D[16:31] MAIN_VCC T20 R31 100R IC2 OPT36(8M Mask ROM) 252423222120191887654321481716 293133353840424430323436394143451247 262811 1513372746 91014A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 A17 A18IO0 IO1 IO2 IO3 IO4 IO5 IO6 IO7 IO8 IO9 IO10 IO11 IO12 IO13 IO14 IO15/A1 RESET BYTE CEOEWE RDY/BUSYVPP VCC GND GND NC NC NC C25 47uF/6.3V R30 10R C24 0.1uF FB5 2K7@100MHz C23 10nF CIRCUIT DIAGRAMFLASH MEMORY SECTION FOR ORIENTATION ONLY 10-910-9
10-10 For 1 DISC Only FOR 1CD DISC ONLY 1 DISC INTERFACE For 5 DISC Only Alternative Alternative Section Section /1823FOR 5CD DISC ONLY 5 DISC INTERFACE If 1CD pick up has a 1ch moto drive self ,pls only populate j5. door_open door_state door_close Tray_out Tray_in Tray_sw door_open door_close door_state Tray_SDA+12V Tray_SCL Tray_IRQ uC_RESET +12V Tary_inTary_out door_statedoor_state Tray_sw Tray_in CD_LCHCD_RCH SL_SDA +12V SL_SCL 5V Tary_out A_GND Tray_swBUSY uC_RESET SL_SDA CD_RCH BUSY 5V CD_LCH Tray_IRQ SL_SCL Tray_SCL A_GND +12V Tray_SDA door_closedoor_opendoor_opendoor_close ?5V 3V3 C107 100uF/10V R104 100R C99 0.1uF R193 10K R200 100R IC12 D6208 1234 5678 VCC BOUT GND AOUT BINNC GNDAIN T64 L4 100uH 1805 CON15 123456789101112131415 J5 CON8 12345678 T60 T65 T61T62 R79 100R T60 CN8 4 HEADER 1234 T66 1805 CON15 123456789101112131415 T61 J5 08FMN-STK-A 12345678 T62T63 FOR ORIENTATION ONLY 10-10