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YPM-2306ZF

2. EXPLODED VIEWS AND PARTS LIST

2.1 CD MECHANISM MODULE

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Содержание YPM-2106ZF

Страница 1: ...ION 2000 K ZZB MAR 2000 Printed in Japan ORDER NO CRT2465 CD PLAYER YPM 2306ZF WL Service Manual FORD The CD mechanism employed in this model is one of S8 1 series CONTENTS 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 3 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 5 4 PCB CONNECTION DIAGRAM 11 5 ELECTRICAL PARTS LIST 14 6 ADJUSTMENT 16 7 GENERAL INFORMATION 20 7 1 DIAGNOSIS 20 7 1 1 TEST MODE 2...

Страница 2: ...ice pickup unit see page 18 1 SAFETY INFORMATION This service manual is intended for qualified service technicians it is not meant for the casual do it yourselfer Qualified technicians have the necessary test equipment and tools and have been trained to properly and safely repair complex products such as those covered by this manual Improperly performed repairs can adversely affect the safety and ...

Страница 3: ...YPM 2306ZF 2 EXPLODED VIEWS AND PARTS LIST 2 1 CD MECHANISM MODULE 3 ...

Страница 4: ... Screw M2 6x6 CBA1458 37 Frame CNC8682 38 Frame CNC8603 39 Lever CNC8694 40 Arm CNC8663 41 Bracket CNC8567 42 43 Spacer CNM3315 44 Sheet CNM6659 45 46 47 Ball CNR1189 48 Belt CNT1086 49 Roller CNV4509 50 Arm CNV6102 51 Arm CNV6094 52 Arm CNV5248 53 Arm CNV6095 54 Guide CNV5254 55 Guide CNV5255 56 Gear CNV5257 57 Gear CNV5256 58 Guide CNV6176 59 60 Arm CNV6096 61 Arm CNV6031 62 Arm CNV5361 63 Guide...

Страница 5: ...SCSNS clamp VC VDD IC 701 BA05SFP VIN 5V REGULATOR 2 4 1 VD D Q101 CN101 FOP TOP A C F B D E 98 LD L_OUT PD LIMIT 97 24 23 39 47 4 20 48 CD5VON 3 X201 TD FD CDLOAD CDEJET MISO ejsw MOSI reset cdsrq brst sck cscd XAO xstb XSI XSO xsck LOCK MIRR FOK SD MD RF AMP SERVO DSP DAC LPF IC 201 UPD63711GC MICRO COMPUTER IC 901 PE5165A 16 CN901 3 18 17 IC 301 BA5985FM S801 HOME 12 16 18 11 14 13 10 9 SOP TOP...

Страница 6: ... VIEWS AND PARTS LIST or ELECTRICAL PARTS LIST A B 3P 22 6R3 RF AMP SERVO DS MICRO CO CD DRIVER 5V REGULATOR M3 CXB5829 M1 CXB5827 SPINDLE MOTOR M2 CXB5828 CN801 CN802 LOADING MOTOR CARRIAGE MOTOR Q3 CPT231SXTU D803 R803 LT3 Q1 CPT231SXTU Q2 CPT231SXTU PHOTO UNIT S8F CN101 PICKUP UNIT CONTROL UNIT S8 SERVICE P8 PE5165A A B ...

Страница 7: ...6ZF 5 6 7 8 5 6 7 8 D C B A A 4700P 16 934MHz 8 38MHz VO DSP DAC LPF CRO COMPUTER CN901 SWITCHES CONTROL UNIT S801 HOME SWITCH ON OFF S802 CLAMP SWITCH ON OFF The underlined indicates the switch position PE5165A ...

Страница 8: ...v 9 CH2 TD 0 5V div Test mode 32 tracks jump FWD 0 5ms div 8 CH1 TE 0 5V div 9 CH2 TD 0 5V div Test mode Single jump FWD 0 5ms div 8 CH1 TE 0 5V div 9 CH2 TD 0 5V div Test mode 100 tracks jump FWD 5ms div 6 CH1 FE 0 1V div 3 CH2 FD 0 2V div Normal mode Play 20ms div 3 CH1 FD 0 5V div 0 CH2 MD 1V div Normal mode Focus close 12cm 0 5s div 3 CH1 FD 0 5V div 0 CH2 MD 1V div Normal mode Focus close 8cm...

Страница 9: ...ode play 8 CH1 TE 1V div CH2 TEC 1V div Test mode Focus close Tracking open 2ms div 8 CH1 TE 0 5V div 6 CH2 FE 0 5V div Normal mode AGC after focus close 0 2s div PLCK 2V div 0 5µs div Normal mode play 20ms div SCKO 2V div 1µs div Normal mode play Dout 2V div 10µs div Normal mode play LRCK 2V div 20µs div Normal mode play VD 5V div 50ms div Normal mode No disc GND REFO REFO GND REFO REFO REFO REFO...

Страница 10: ...V div Normal mode During AGC 1 CH1 RFI 1V div CH2 HOLD 5V div Normal mode The defect part passes 800µm B D 0 2ms div 1ms div 0 5ms div 3 CH1 FD 0 5V div CH2 HOLD 5V div Normal mode The defect part passes 800µm B D 0 5ms div 9 CH1 TD 0 1V div CH2 HOLD 5V div Normal mode The defect part passes 800µm B D 0 5ms div REFO REFO REFO REFO REFO REFO REFO REFO REFO REFO REFO REFO ...

Страница 11: ...11 YPM 2306ZF ...

Страница 12: ... on this PCB include all necessary parts for several destination For further information for respective destinations be sure to check with the schematic dia gram 2 Viewpoint of PCB diagrams CONTROL UNIT S8 HOME E F REFO M1 CARRIAGE MOTOR M2 LOADING MOTOR M3 SPINDLE MOTOR PICKUP UNIT SERVICE CN802 3 2 1 PHOTO UNIT S8F SIDE A A B B A ...

Страница 13: ...13 YPM 2306ZF 1 2 3 4 1 2 3 4 D C B A SIDE B A CLAMP CONTROL UNIT S8 A ...

Страница 14: ... RS1 16S103J R 501 RS1 16S0R0J R 607 RN1 16SE1001D R 612 RS1 16S103J R 614 RN1 16SE1001D R 618 RS1 16S2202F R 619 RS1 16S2202F R 801 RS1 8S751J R 802 RS1 8S751J R 803 RS1 8S751J R 901 RS1 16S221J R 902 RS1 16S221J R 903 RS1 16S221J R 904 RS1 16S221J R 905 RS1 16S221J R 906 RS1 16S221J R 907 RS1 16S102J R 908 RS1 16S473J R 909 RS1 16S104J R 910 RS1 16S222J R 911 RS1 16S103J R 912 RS1 16S103J R 913 ...

Страница 15: ...472K50 Unit Number Unit Name Photo Unit S8F MISCELLANEOUS Q 1 Photo transistor CPT231SXTU Q 2 Photo transistor CPT231SXTU Q 3 Photo transistor CPT231SXTU Miscellaneous Parts List Pickup Unit Service P8 CXX1285 M 1 Motor Unit CARRIAGE CXB5827 M 2 Motor Unit LOADING CXB5828 M 3 Motor Unit SPINDLE CXB5829 Circuit Symbol and No Part Name Part No B ...

Страница 16: ...nit s software are rendered inoperative in test mode be very careful to avoid mechanical and or electrical shocks to the sys tem when making adjustment This unit is adjusted in a combination with the CD con trol unit GGF1298 Each regulator key should be operated at the unit Test mode starting procedure Switch ACC back up ON while pressing the 4 and 6 keys together Test mode cancellation Switch ACC...

Страница 17: ...nt 7 F T RF AGC F Bias Display Select F T AGC and RF AGC CRG Move 100TR Jump Only TRK MIN SEC F AGC Gain RF AGC Gain T AGC Gain 8 Power ON Adjustment for T Offset 5 4 4 6 CRG TR Jump NO Select CRG TR Jump CRG TR Jump Power OFF Display Display Display T Close and F T AGC and RF AGC and Fit Servo Display Power ON Not adjustment for T Offset Display Display 5 RF AMP Gain Select 5 Power OFF Power OFF ...

Страница 18: ... to the innermost track 3 Press key 6 to close focus the display should read 91 Press key 5 to implement the tracking balance adjust ment the display should now read 81 Press key 6 2 times The display will change returning to 81 on the fourth press 4 As shown in the diagram above monitor the LPF outputs using the oscilloscope and check that the phase differ ence is within 75 Refer to the photograp...

Страница 19: ...19 YPM 2306ZF Grating waveform Ech Xch 20mV div AC Fch Ych 20mV div AC 45 0 75 60 30 90 ...

Страница 20: ...hanism 11 Electricity Focus Servo NG Focusing not available Stains on rear side of disc or excessive vibrations on REWRITABLE 12 Electricity Spindle Lock NG Spindle not locked Sub code is strange not readable Failure on spindle stains or damages on disc or excessive vibrations Subcode NG A disc not containing CD R data is found Turned over disc are found though rarely Failure on home switch or CRG...

Страница 21: ...c turned off 2 Key Correspondence Key Test mode New test mode Example Power Off Power On In play Error Production 1 To power on To power off Time Err No switching offset adjustment performed 2 FWD Kick FF TR 3 REV Kick REV TR 4 T Close AGC performed Scan parameter display switching 5 RF AMP gain switching Parameter display switching Mode T BAL adjustment T Open 6 To power on F Close RF AGC F T AGC...

Страница 22: ...focus search time has been passed 25 Focus search preprocessing is in None progress while setup protection is turned on 26 Focus search preprocessing is in None progress while focus recovery is turned on 27 Wait time after focus close is set up Off focus 28 Standing by after focus close is over Off focus 29 Setup 1 2 before T balance adjustment is started Off focus 30 Setup 2 2 before T balance ad...

Страница 23: ...REV The same as in the normal mode 3 When a Protection Error Occurred Switch to the following displays A and B using the BAND switch A Error occurrence timing display in absolute time An example Error occurred in 12th tune at 34 56 in absolute time TRK No MIN SEC 12 34 56 B Error No display An example Error 40 Off focus is detected ERROR 40 ...

Страница 24: ... disengage and remove the mechanism from the two dampers by driving it up aslant into front side direction Note When assembling the Carriage Mechanism coat the dampers with alcohol prior to the assembly Removing the Clamp Arm Assy Section 1 Remove a Spring A a B and a Spring C 2 Drive the Clamp Arm Assy up into rear side direction then disengage the arm from its current position Finally drive the ...

Страница 25: ...re must be exercised so that cord may be caught by the gear Removing the LO Arm Assy Section 1 Remove two Pins to dismount the LO Arm Assy Removing the Control Unit and the Spindle Motor 1 Remove from the connector after mounting the short pin on the flexible PCB of the pickup unit 2 Remove two Soldered joints then remove two Screws A 3 Remove two connectors and a Screw B 4 Disengage the Control U...

Страница 26: ...e the Belt a Screw B two Screws C a Guide and a Screw Unit 4 Dismount the Carriage Motor Note When assembling the Belt use care so that it may not be contaminated by grease Removing the Pickup Unit 1 Remove two Screws and a Shaft 2 Dismount the Pickup Unit Pickup Unit Shaft C Guide B Screw Unit Carriage Motor A A C Belt Loading Motor ...

Страница 27: ...nce voltage supply control output 27 30 NC O NM Open 31 32 NC O C Open 33 NC I O C Open 34 NC I VDD or VSS 35 reset I System reset input 36 NC VDD or VSS 37 cscd F Bus chip select input 38 brst F Bus reset input 39 ejsw Eject key input 40 VDD Power supply 5V 41 X2 Main clock oscillator connection 8 38MHz 42 X1 I Main clock oscillator connection 8 38MHz 43 IC VPP Internally conected VSS 44 NC Open ...

Страница 28: ...Format Meaning C C MOS output NM Middle N channel open drain IC s marked by are MOS type Be careful in handing them because they are very liable to be damaged by electrostatic induction 20 21 40 41 60 61 80 1 64 49 17 1 16 48 33 32 ...

Страница 29: ... reference Note During the measurement do not try to short the REFO and GND 1 APC Circuit Automatic Power Control When the laser diode is driven with constant current the optical output has large negative temperature char acteristics Thus the current must be controlled from the monitor diode so that the output may be constant APC circuit is for it The LD current is obtained by mea suring the volta...

Страница 30: ...put may go to 1 5 0 3Vpp The RFO signal is used for the EFM DFCT MIRR and RFAGC adjustment circuits 3 RFOK Circuit This circuit generates the signal that is used for indicat ing the timing of closing the focus or state of the focus close currently being played This signal is output from Pin 2 as the FOK signal It goes high when the focus close and in play The RFOK signal is generated by holding DC...

Страница 31: ...cking Zero Crossing Amplifier TEC signal the tracking zero crossing signal is obtained by multiplying the TE signal four times It is used for locating the zero crossing points of the track ing error The zero cross point detection is done for the following two reasons 1 To count tracks for carriage moves and track jumps 2 To detect the direction in which the lens is moving when the tracking is clos...

Страница 32: ...ent against that of the FE signal at that time then converting the signal to DC level This signal is used for adjusting bias of the FE sig nal to be described later This signal is not output from the LSI thus its monitoring is not available 9 MIRR Mirror Circuit The MIRR signal shows the on track and off track data and is output from Pin 43 When the laser beam is On track MIRR L Off track MIRR H T...

Страница 33: ...ling alone This circuit therefore controls the ref erence voltage ASY on the EFM comparator by use of the fact that 0 and 1 appear fifty fifty in the EFM signal By this arrangement the comparate level is con stantly maintained at almost center of the RFO signal level The reference voltage ASY is generated when the EFM comparator output is passed through the low pass filter The EFM signal is output...

Страница 34: ...d fed to respective actuators and motors 1 Focus Servo System The focus servo main equalizer is consisted of the digi tal equalizer Fig 10 shows the focus servo block dia gram When implementing the focus close on the focus servo system the lens must be brought within the in focus range Therefore the lens is moved up and down according to the triangular focus search voltage to find the focus point ...

Страница 35: ... of operations carried out relevant to the focus close the figure shows the case where focus close is not available You can check the S curve search voltage and actual lens behavior by selecting the Display 01 for the focus mode select in the test mode and then pressing the focus close button REFO FD LENS POSITION RELATIVE TO DISC NEAR FAR JUST FOCUSED MD REFO Expanding around Just Focused Point R...

Страница 36: ... pulse for a fixed period of time duration can be specified with the command to stop the lens In this way the tracking is closed and normal play is contin ued To improve the servo loop retracting performance just after the track jump the brake circuit is turned on for 50 ms after the brake pulse has been terminated to increase gain of the tracking servo Fast forward and reverse operations are real...

Страница 37: ...down its move by outputting the drive signal that moves the lens into the opposite direction alone Track slippage direction is determined by referencing the TEC and MIRR signals and their phase TEC TZC TEC SQUARED UP INTERNAL SIGNAL MIRR MIRR LATCHED AT TZC EDGES SWITCHING PULSE EQUALIZER OUTPUT SWITCHED DRIVE DIRECTION Note Equalizer output assumed to hava same phase as TEC FORWARD LENS MOVING FO...

Страница 38: ...erations a certain threshold level is set for the equalizer output by the servo LSI so that the drive voltage may be output from the servo LSI only when the equalizer output exceeds the threshold level This arrangement helps reducing power consumption Also due to disc eccentricity or other factors the equalizer output may cross the threshold level a number of times In this case the drive voltage o...

Страница 39: ...matically selected 4 Brake This mode is turned on when stopping the spindle motor The microcomputer outputs the brake voltage through the servo LSI The LSI monitors the EFM waveform and if its longest pattern exceeds a cer tain interval if the rotation is sufficiently slow the flag is set the LSI and the microcomputer turns off the brake voltage When the flag is not up within a specified period ti...

Страница 40: ... The following is the adjustment procedure 1 Make sure the focus close is complete 2 Kick the lens in the radial direction to generate the TE waveform 3 At this time the microcomputer reads the TE signal offset value via the servo LSI being calculated by the LSI 4 The microcomputer determines if the read offset value is positive negative or zero If the offset value 0 the adjustment is terminated I...

Страница 41: ...O level 3 The microcomputer sends the corresponding com mand to the servo LSI so that the above gain value may be set This adjustment takes place at the following timing When the focus close alone is completed during the setup process Just before the setup is completed just before the play takes place After the off focus has been corrected during the play 7 Adjustment of Pre Amp Stage Gain It is u...

Страница 42: ...ults are displayed in multiples of approxi mately 40 mV An example When FZD cancel coefficient 35 35 32 3 3 40 mV 120 mV Since the corrected value is approxi mately 120 mV the FE offset before adjustment was 120 mV 2 F and T gain adjustment Reference value Focus Tracking 20 A coefficient displayed indicates an amount of adjustment conducted on the reference value An example When AGC coefficient 40...

Страница 43: ... touch the Lock Lever because the disc leaves the lever before it reaches the Centering Arm 4 Succeeding procedures are the same as that for 12 cm discs Clamping Operation 1 Insert a disc 2 The Detection Arm pushed forward by the Detection Lever turns on rotation of the Jump In Rack 3 The Jump In Rack then engages with the Two Step Gear and moves toward right 4 At the same time the Mode Selector L...

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