Philips-AZ1009-gb-sm 维修电路原理图.pdf

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1、Published by MS 9741 Service Audio Printed in The Netherlands Subject to modificationchapterTechnical Specification.2-1Measurement setup.2-2Controls & Connections.2-3Brief Operating Instructions.2-4 to 2-7Warnings & Safety.2-8Dismantling Instructions.3-1 to 3-3Service hints.3-4 to 3-6CD - startup pr

2、ocedure .3-7Abbreviations CD-ICs .3-8Service Test Program.3-10BLOCK DIAGRAM.4-1WIRING DIAGRAM.5-1TUNER BOARDschematic diagram .6-1component layout.6-2adjustment table.6-2chapterFRONT BOARDcomponent layout.7-1schematic diagram .7-2COMBI BOARDcomponent layout .7-1, 7-4schematic diagram CD part.7-2Reco

3、rder/Amplifier part .7-3EXPLODED VIEWSapparatus, drawing 1.8-1apparatus, drawing 2.8-2tape transport .8-3MECHANICAL PARTSLIST see Exploded viewsELECTRICAL PARTSLIST.9-1 ffTABLE OF CONTENTSCS 49 101AZ1009/00/05/17 4822 725 26015CD Stereo Radio RecorderCD SYNCHRO START RECORDINGPAUSESTOP.OPENSEARCHPLA

4、YRECORDOPENCD SYNCHRO START RECORDINGOPENPAUSESTOP.OPENSEARCHPLAYRECORD1700TUNINGFM AM130010008006305301081041049092881700TUNINGFM AM13001000800630530108104104909288VOLUMEDBBDYNAMIC BASS BOOSTVOLUMEDBBDYNAMIC BASS BOOSTCD MODEBASS REFLEX SPEAKER SYSTEMCD MODEBASS REFLEX SPEAKER SYSTEMCLASS 1LASER PR

5、ODUCTAZ1010/00/01/04/05/10/11/11H/14/17Copyright 1997 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmitted, in any form or by any means, electronic, mechanical, photocopying,or other

6、wise without the prior permission of Philips.Service ManualService ManualRadioFans.CN 收音机爱 好者资料库TECHNICAL SPECIFICATIONGeneral:Mains voltage: 220V-230V / 50Hz for /00 /04 /14230V-240V / 50Hz for /05 /10110V-127V / 220V-240V /50Hz switchable for /01 /11 /11H120V / 60Hz for /17Battery: 9V ( 6xR20 )Pow

7、er consumption: 15W at maximum output power, ( 11W at 1/8 Pmax) 5W (typ. 2W) with source switch in tape/offAmplifier:Power stage protection : temperature and shortcircuitOutput power mains: 2 x 1,4Wrms-1dB at 4D=10% battery: 2 x 2Wrms-1dB at 4D=10%Headphone: 3,5mm stereo jack, 20mW at 32 ( 0,8V at 3

8、2 ) D=10%Frequency response: 30Hz - 16kHz ( typ. at volume set to -20dB, CD mode 0dB signal level use SBC429 )Tone controlDBB: +12dB 3dB at 100Hz ( volume set to -20dB )Tuner:FMMWTuning range87,5 - 108 MHz522 - 1607 kHz(520 - 1730 kHz for /17)IF10,7 MHz 20 kHz468 kHz 3 kHzSensitivityMono: 26dB S/N,

9、m=30% 4 V ( 2V typ.) 4mV/m ( 1,5mV/m typ.)-3 dB limiting point 5 V ( 2V typ.)AFC capture range300kHz typ.Distortion 7% ( 1% typ.) 7% ( 2,5% typ.)RF=1mV f=75kHzRF=100mV/m m=80%Image rejection ratio 20dB (26dB typ.) 28dBChannel separation at 1kHz 20dB (25dB typ.)CD:To be measured on phone socket with

10、100k load.Frequency response:30 - 16.000 Hz -4dBSignal/Noise ratio: 60dBDistortion:0.2% typ. at 1 kHzChannel difference: 3dB at 1 kHzChannel crosstalk:40dB typ.De emphasis:0 or 15/50s switched automatically by subcode on the discLaserOutput power:500WWave length:780 20 nmRecorder:To be measured on p

11、hone socket with 100k load.Tape speed: 4,76cm/s 3% Wow & Flutter: 0,5% weightedWinding speed: 120s for C60 cassetteErase / Bias system: permanent magnetic erase head / AC 65 5kHzDistortion at 250 nWb/m: 7%Signal/Noise ratio(FF weighted): 40dB(A - weighted): 43dBChannel difference at PB: 5dBChannel d

12、ifference overall: 5dBChannel separation: 15dB at 1kHzTrack separation: 55dB at 1kHzFrequency response IEC I Pb: 125Hz - 8000Hz (within 8dB)overall: 250Hz - 6300Hz (within 8dB)note: set is not prepared to play or record IEC II Chromecassettes!2-1CS 49 102RadioFans.CN 收音机爱 好者资料库3-5CS 49 114SERVICE HI

13、NTSGeneral Service positionpicture 12For repairs on:CD failuresRec/Pb-amplifierPower-amplifierPower supplyTuner BoardService position Tape Transportpicture 13For repairs on the Tape Transport or foradjustment of the tape speed: Dismantle tape transport as described inchapter 3-3. Fix tape transport

14、on cabinet with onescrew as shown in picture 13. Connect cables on Combi Board again. Remove casstte door as described in chapter 3-1. Insert testcassette SBC420 (4822 397 30071)directly into cassette compartment and play10kHz part. Adjust right hand screw for max. output and left channel = right ch

15、annel.3-6CS 49 115SERVICE HINTSAlignment of AZIMUTHpicture 14Details wire routing of mains transformerpicture 15Wire routing has to be carried out as shown in picture15 in order to: fulfil safety requirements and obtain tight speaker boxes3-7CS 49 116NYNNNNNYCD switched on(mode switch)+A(CD)supplied

16、 toCD part?Decoder delivers CLOCK -frequ. 4.23MHz to P.P-RESET line highP init. Decoder 7801.inner switchclosed?4s time-out over?0,2s time-out over?inner switch open?Laser onDisc motor 100ms onFOCUS search onfocus found?3s time-out over?Nstartup proc.stopped, display showsP initializes Decoderand Se

17、rvo IC:-start turntable-adj. track bal. and gain-read subcode (TOC)TOCfound?display showsmax. trackno.YYYYNYYRemark: To check focus servo, slide servo, track servo and turntable use service test program- Battery empty?- check +A,- mode switch o.k.?check: - Motor control pin 27 of Decoder 7801 and Di

18、sc Motor driver 7805- HF Signal by using service testprogramcheck: - Laser light on ? Check pin 38 of 7803 and LASER CONTROL circuit- Focus ServoHIGHLOWLevel onpin23(CD-RESET)after 100s?Init. 7801 for ext. DACInit. 7801 for int. DACBEGINP moves slide inside(4s time-out starts)P moves slide outside(0

19、,2s time-out starts)STOP MODESTARTUP FAILEDCDstartup EVA, 080997slide offNYcheck: - door switchDoor closed?Display showscheck: - +A(CD), +B(CD), +LASER, +M,- time constant of reset circuit- Pin 32 of P 7800 HIGH ?- Pin 30 of P 7800, if 4.23 MHz o.k.CD STARTUP PROCEDURE3-8CS 49 117SERVO PROCESSOR M62

20、475FPPinNameDirectionDescription1-3A, B, CDiode array Servo processorCurrent input ( central photo diode signal input )4-5E, FDiode array Servo processorCurrent input ( satellite photo diode signal input )6SGTServo processor Track error ampl. inputSignal generator output to track servo, sends 1700Hz

21、 for adjustment procedure7TE -Inverting input of track error amplifier8TEGain-Gain control pin of track error amplifier9TG1-Track Gain 1 - switch: controls the gain of the track servo amplifier10TE out-Track Error amplifier output11TC/Shock-Track Cross/Shock detector input12TS +-Non inverting input

22、of track servo amplifier13TG2not connectedTrack Gain 2 - switch: controls the gain of the track servo amplifier14TS -Inverting input of track servo amplifier15TS outServo processor Servo driverOutput of track servo amplifier16SS +-Non inverting input of slide servo amplifier17SS -Inverting input of

23、slide servo amplifier18Slide outServo processor Motor driverOutput of slide servo amplifier19DET.FILTER-Pin for connection of DETection FILter capacitor of ADJUST LOGIC20BIASServo processor external electronicReference Voltage output Vcc/2 of internal BIAS-generator21GND-Ground connection pin ( nega

24、tive supply )22MLA/DISP Servo processorSerial interface Microprocessor LAtch control / DIScharge control for adjustment23JP1/SGP Servo processorSerial interface Jump control line / Signal Generator input line for adjustment24MCKP Servo processorSerial interface Clock input line25MSDP Servo processor

25、Serial interface Data input line26DoutServo processor PSerial interface Data output line27CLPF-Pin for connection of Low Pass Filter capacitor for ADJUST LOGIC28IREF-Reference current input29VCC-Positive supply connection pin ( 4V - 5.5V )30FSOUTServo processor Servo driverOutput of focus servo ampl

26、ifier31FS -Inverting input of focus servo amplifier32FEGain-Gain control pin of focus error amplifier33FE - -Inverting input of focus error amplifier34SGFServo processor Focus error ampl. inputSignal generator output to focus servo, sends 1300Hz for adjust. procedure35CFSR-Charge capacitor for Focus

27、 Search triangle-generator36ALPC +-Non inverting input of Automatic Laser Power Control amplifier37ALPC -Inverting input of Automatic Laser Power Control amplifier38ALPC OUTServo processor Laser driverOutput of Automatic Laser Power Control amplifier39MRC-Connection pin for capacitor of Mirror detec

28、tor40HFServo processor DecoderOutput of HF amplifier41HFI-Inverting input of HF amplifier42ABC-Sum output of amplified A, B and C input ( central photo diode signal input )to external ac-coupling capacitorSIGNAL PROCESSOR M65824FPPinNameDirectionDescription1Anal. VSS-Analog system ground2ADJCLKnot c

29、onnectedClock output for servo adjustment; f=88.2kHz3LOCKnot connectedLock monitor / low disc rotation output4CKSEL-System clock selection. Low=8.4672MHz, high=16.9344MHz5RESETP Signal processorSystem reset ( low level = active )6C423Signal processor P4.2336MHz clock output7C846not connected8.4672MH

30、z clock output8XIX-Tal Signal processorCrystal oscillator input9DVSS-Digital system ground10XOSignal processor X-TalCrystal oscillator output11TEST-Normal / Test selection input. Testmode = high12SBCOnot connectedSubcode serial output13SCCK-Shift clock input for subcode data read14SYCLKnot connected

31、Frame lock status output. Lock = high15EFFKnot connectedEFM frame clock output. Duty = 50%16KILLBnot connectedDigital silence mute output. Digital zero = low17EST1not connectedError monitor output 118EST2not connectedError monitor output 219HFServo processor Signal processorHF signal input20TLC-Slic

32、e level control signal output21LPF-PLL loop filter22Dig.VDD-Digital interface power supply23DSPS-Digital system power supply24SBQSnot connectedInterrupt signal to read out subcode Q data. Read = low25CRCFnot connectedSubcode Q-channel Cyclic Redundance Check Flag output. CRC o.k.=high level26SCANDno

33、t connectedSubcode sync signal detection. Sync = high27PWMSignal processor Motor driverDisc motor driving ( Pulse Width Modulation ) output28DVDD2-Digital interface power supply 229DVSS2-Digital system ground230MCKP Signal processorP interface shift Clock input31MSDP Signal processorP interface Seri

34、al Data I/O line32MLABP Signal processorP interface Latch clock input ( internal 22k pull up resistor )33EXP1 Signal processorVersatile input pin ( internal 4.7k pull up resistor )34EXP2 Signal processorVersatile input pin ( internal 4.7k pull up resistor )35CGREF Signal processorCharge-pump for LPF

35、 reference current input36AMPREFnot connectedOp-amp for LPF reference voltage setting37LOUT/DOSignal processor Audio signal output (left channel) / Ext. DAC mode: Audio serial data output38LNEGnot connectedCharge pump output (left channel) / Ext. DAC mode: Wordclock output39ROUT/DSCKSignal processor

36、 Audio signal output (right channel) / Ext. DAC mode: Data shift clock output40RNEG/LRCKSignal processor Charge pump output (right channel) / Ext. DAC mode: L/R clock output41IREF-Current reference42Anal. VDD-Analog System power supplyPin-descriptions of CD ICs3-103-10STOP button pressed in any step

37、 returnsto begin of Service Testprogram.NEXT buttonpressed?STOP buttonpressed?NNYYYYNDisplay shows allsegments and flagsfor checking open circuits.see figure 1Display shows figure 2.All alternate pins (2, 4, .)of the display are activatedfor checking shortcircuits.DISPLAY TESTCD SERVO TESTDisplay sh

38、owsversion number of the P - software.PLAY buttonpressed?Display showsPLAY buttonpressed?NEXT buttonpressed?PREV. buttonpressed?MODE buttonpressed?Slide movesoutside as long asbutton is holddepressed.To check Focus over the whole disc areaSlide - and Discmotor can also be activatedin FOCUS - test.Sl

39、ide moves insideas long as buttonis hold depressedor until inner-switchis activated.Disc motor turnsclockwiseas long as buttonis hold depressed.(accelerate )NEXT buttonpressed?YYYYNNNNFOCUS found?YNDisplay showsobjective moves up&downdisc motor for 160ms onPLAY buttonpressed?YNDisplay showsdisc moto

40、r turns.NEXT buttonpressed?YDisplay showsPREV buttonpressed?YCUE - modejumps in steps of16 tracks forwardFOCUS searchautomaticadjustment ofTRACK BALANCEREVIEW - modejumps in steps of16 tracks backwardsSLIDE testDISC MOTOR testTo enter ServiceTestprogramm holdPLAY & STOP buttonsdepressed while switch

41、ingCD mode on.fig. 1servtest EVA, 021097*To leave Service Testprogram switchCD mode off.Door switch is ignored CD door can be opened. Slide servo, Radial servo, Focus servo, Disc motorand Laser are switched off.Mute is switched on via decoder IC.Purpose of RADIAL test:To check if the Audio signal is

42、 reproduced.Subcode info is ignored during this test If the CD player functions well in this testmode,but not in the normal Play mode check qualityof the eye-pattern signal.RADIAL testDisplay shows Play modeMUTE is switched offwhile autom. track balance adjustment is activeas soon as track balance a

43、djustment finished. (1 - 6) indicates the actual setting.PLAY buttonpressed?YNMODE buttonpressed?YNDisplay showsautomaticadjustment ofFOCUS GAINwhile autom. focus gain adjustment is activeas soon as focus gain adjustment finished. (1 - 6) indicates the actual setting.PLAY buttonpressed?YNMODE button

44、pressed?YNDisplay showstrack servo switched onautomaticadjustment ofTRACK GAINwhile autom. track gain adjustment is activeas soon as track gain adjustment finished. (1 - 6) indicates the actual setting.PLAY buttonpressed?YNNNMODE buttonpressed?YNNSERVICE TESTPROGRAMSHUFFLEPROGRAMREPEATALLfig. 2SHUFF

45、LEREPEATIf the margin settings 0 or 7 are displayed the required setting is possibly out of the adjustment range. check disc drive and/or electronic circuitryThe CD PLAY TEST is intended to be usedfor continuously playing a disc in order to detect intermittend or not reproduciblefailures. The error

46、code indicates wherethe failure can be found.1)YCD PLAY TEST 1)NCD is in normalPLAY mode.In case of failureserror codes acc. table 1will be indicatedon the display.POWERswitched off?NYExit Service TestprogramMODE buttonpressed?set continues operation, message remains on the display until next error

47、occursor any key is pressed.Error numberError typeError type:Error descriptionE0Focus ErrorTriggered when the focus is lost for more than 250ms during playing the CD.E6Subcode ErrorNo valid subcode for 300ms during PLAY.E3Slide-out errorGenerated when the inner-switch did not open within approx. 250

48、ms when the pick up is moved from the inner position outside. Inner-switch or slide motor problems.E2Slide-in errorGenerated when the inner-switch did not close within approx. 4s when the pick up is moved inside. Inner-switch or slide motor problems.WF0Focus Search ErrorTriggered when the focus coul

49、d not be found within 3s when starting up the CD.FWWF2Fatal Subcode ErrorNo valid subcode for more than 4s during PLAY.FWWWW = Warning F = Fatal Error set stops operation, message remains on the display.CD ERROR codestable 1(The set can only be operated again via a reset)E5Jump error.Triggered when

50、the servo processor counts too less tracks in a defined time during JUMPS.This can be caused by a disturbed HF-signal (the tracks cannot be recognized exactly),slide motor problems, track servo problems or scratched discs. E7PLL lock errorWhen the PLL did not lock after 10 retries then this warning