Philips-AZ-7385-Service-Manual(1) 电路图 维修手册.pdf

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1、MABEL PLATFORM 3A/4A PB2 THIS MANUAL IS VALID FROM FACTORY CHANGE CODE KT02 ONWARDS Technical specification .1-1 Connections and controls.1-2 Feature overview.1-2 Accessories .1-3 Safety warnings.1-4 Service hints Repair positions .2-1 Service tools.2-1 Training material .2-1 ESD protection equipmen

2、t .2-1 Handling chip components.2-2 Service test program .3-1.3-2 Blockdiagram.3-3 Start-up procedure.3-4 Pinning of ICs.3-5.3-9 Circuit diagrams Supply/Servodriver part.4-1 Signal processing part.4-2 Membrane assembly 4822 360 10363.4-3 Control part .4-4 Audio part.4-5 Printed circuit board Coppers

3、ide view.4-6 Componentside view.4-7 Exploded view .5-1.5-2 Mechanical partslist.6-1 Electrical partslist .6-1.6-3 CS 46 510 4822 725 26021Published by PW 9813 Service Audio Printed in The Netherlands Subject to modification Portable compact disc player CLASS 1 LASER PRODUCT AZ7381 AZ7382 AZ7383 AZ73

4、84 AZ7385 AZ7386 AZ7387 AZ7481 AZ7482 AZ7483 all versions TABLE OF CONTENTS Copyright 1997 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electr

5、onic, mechanical, photocopying, or otherwise without the prior permission of Philips. MODE PROG REPEATALL REPEATALL RadioFans.CN 收音机爱 好者资料库 1-1 CS 46 511 TECHNICAL SPECIFICATION General Dimensions (WxHxD): 128x28x136.5mm Weight without batteries: 225g Power supply modes DC-in socket: 4.5-5.5V Primar

6、y batteries (2xLR6): 1.55-3.6V Rechargable batteries: 1.55-3.6V Battery lifetime Battery empty detection Battery weak level: 2.1V nom. 150mV Battery empty level: 1.6V nom. +100/-50mV Charge circuit Charge current: 200mA nom. 20% Charge time for 80% AY3361: 4.0hrs nom. Max. charge time (P controlled)

7、 : 5.0hrs nom. Temperature protection: none Current consumption (DC-in=4.5V, excl. illumination) Current consumption (Batt. supply=2.25V, excl. illumin.) Shock resistance (ESA off) +X/-X direction: 2.5g +Y/-Y direction: 2.5g +Z/-Z direction: 2.0g Shock resistance by use of car base (ESA off) +X/-X d

8、irection: 6g +Y/-Y direction: 6g +Z/-Z direction: 6g Headphone out (measured with 16 load, ESA 19EMPGNDparallel control: de-emphasis filter control input (SHIFT)serial control: shift clock input for ATT; 20SMGNDparallel control: soft mute control input (ATT)serial control: data input for ATT; 21HS+3

9、standard/double speed operation mode switching input 22DATANPC DACdata input 23BCKNPC DACbit clock input 24LRCKNPC DACLR clock input 3-5 CS 46 521 SAA7374 DECODER AND DIGITAL SERVO IC CD7 (low voltage version) PinNameDirectionDescription 1VSSA1GNDsupply (analog) of CD7 2VDDA1+3supply (analog) of CD7

10、 3D1HF-preamp CD7unipolar current input (central diode signal input) 4D2HF-preamp CD7unipolar current input (central diode signal input) 5D3HF-preamp CD7unipolar current input (central diode signal input) 6VRLGNDreference input for ADC 7D4HF-preamp CD7unipolar current input (central diode signal inp

11、ut) 8R1HF-preamp CD7unipolar current input (satellite diode signal input) 9R2HF-preamp CD7unipolar current input (satellite diode signal input) 10IREFT CD7current reference for calibration ADC 11VRHCD7 reference output from ADC 12VSSA2GNDsupply (analog) of CD7 13SELPLL+3selects whether internal cloc

12、k multiplier PLL is used 14ISLICECD7 current feedback from data slicer 15HFIN CD7comparator signal input 16VSSA3GNDsupply (analog) of CD7 17HFREF CD7comparator common mode input 18IREF CD7reference current pin (nom. VDD/2) 19VDDA2+3supply (analog) of CD7 20TEST1GNDtest control input 21CRINP CD7cryst

13、al/resonator input 22CDOUTCD7 crystal/resonator output 23TEST2GNDtest control input 24CL16CD7 16.9344MHz system clock output 25CL11CD7 11.2896MHz or 5.6448MHz clock output (3-state) 26RACD7 servo driverradial actuator output 27FOCD7 servo driverfocus actuator output 28SLCD7 servo driverslide actuato

14、r output 29TEST3GNDtest control input 30VDD1P+3supply (digital) of CD7 31DOBMCD7 bi-phase mark output (3-state) 32VSS1GNDsupply (digital) of CD7 33MOTO1CD7 motor output1 of CD7; versatile (3-state) 34MOTO2CD7 motor output2 of CD7; versatile (3-state) 35SBSYCD7 NPCsubcode block sync (3-state) 36SFSYC

15、D7 Psubcode frame sync (3-state) 37RCK CD7subcode clock input 38SUBCD7 P to W subcode bits (3-state) 39VSS2GNDsupply (digital) of CD7 40V5CD7 versatile output pin of CD7 41V4CD7 HF-preampversatile output pin of CD7 42V3CD7 NPCversatile output pin of CD7 (open drain) 43KILLCD7 kill output; programmab

16、le (open drain) 44MISCCD7 NPCC2 error flag; output only defined in CD-ROM modes (3-state) 45DATACD7 NPCserial data output (3-state) 46WCLKCD7 NPCword clock output (3-state) 47VDD2P+3supply (digital) of CD7 48SCLKCD7 NPCserial bit clock output (3-state) 49VSS3GNDsupply (digital) of CD7 50CL4CD7 4.233

17、6MHz P clock output 51SDAP CD7P interface data I/O line (open drain output) 52SCLP CD7P interface clock line 53RABP CD7P interface R/W and load control line 54SILDP CD7P interface R/W and load control line 55NCno connection 56VSS4GNDsupply (digital) of CD7 57RESETP CD7power-on reset input (active lo

18、w) 58STATUSCD7 Pservo interrupt request line/CD7 status register output (open drain) 59VDD3C+3supply core (digital) 60C2FAILCD7 indication of correction failure (open drain) 61CFLGCD7 correction flag output (open drain) 62V1 CD7versatile input pin 63V2 CD7versatile input pin 64LDONCD7 HF-preamplaser

19、 drive on output (open drain) 3-6 CS 46 522 SM5902AF COMPRESSION-TYPE ANTI-SHOCK MEMORY CONTROLLER NPC PinNameDirectionDescription 1VDD+3supply voltage 2UC1DRAM SELECT NPCP interface extension I/O line 1 3UC2DRAM SELECT NPCP interface extension I/O line 2 4UC3NPC SOUND CONTROLP interface extension I

20、/O line 3 5UC4NPC SOUND CONTROLP interface extension I/O line 4 6UC5INNERSWITCH CDM NPCP interface extension I/O line 5 7DITNPC digital audio interface output 8TEST2test pin 9CLKDAC NPC16.9344MHz clock input 10VSSGNDground 11YSRDATACD7 NPCaudio serial data input 12YLRCKCD7 NPCaudio serial L/R clock

21、input 13YSCKCD7 NPCaudio serial bit clock input 14ZSCKNPC DACaudio serial bit clock output 15ZLRCKNPC DACaudio serial L/R clock output 16ZSRDATANPC DACaudio serial data output 17YFLAGCD7 NPCsignal processor IC RAM overflow flag 18YFCLKGNDcrystal-controlled frame clock input 19YBLKCKCD7 NPCsubcode bl

22、ock clock signal output 20RESETP NPCsystem reset input (active low) 21ZSENSENPC PP interface status output 22VDD2+3supply voltage 23YDMUTEGNDforced mute input 24YMLDP NPCP interface latch clock input 25YMDATAP NPCP interface serial data input 26YMCLKP NPCP interface shift clock input 27OENPC DRAMDRA

23、M OE control output (active low) 28CASNPC DRAMDRAM CAS control output (active low) 29D2NPC DRAMDRAM data input/output 2 30D3NPC DRAMDRAM data input/output 3 31D0NPC DRAMDRAM data input/output 0 32D1NPC DRAMDRAM data input/output 1 33WENPC DRAMDRAM WE control output (active low) 34RASNPC DRAMDRAM RAS

24、 control output (active low) 35A9NPC DRAMDRAM address output 9 36A8NPC DRAMDRAM address output 8 37A7NPC DRAMDRAM address output 7 38A6NPC DRAMDRAM address output 6 39A5NPC DRAMDRAM address output 5 40A4NPC DRAMDRAM address output 4 41A0NPC DRAMDRAM address output 0 42A1NPC DRAMDRAM address output 1

25、 43A2NPC DRAMDRAM address output 2 44A3NPC DRAMDRAM address output 3 3-7 CS 46 523 MPC17A50VM 4-CHANNEL H-BRIDGE SERVODRIVER PinNameDirectionDescription 1CGNDGNDground (control part) 2VLG+3power supply input (control part) 3ERR2CD7 servo drivererror level input (slide error signal) 4NI2 servo driver

26、filter capacitor connection in ABS amp circuit section 5OP2 servo driverfilter capacitor connection in ABS amp circuit section 6ERR1CD7 servo drivererror level input (focus error signal) 7NI1 servo driverfilter capacitor connection in ABS amp circuit section 8OP1 servo driverfilter capacitor connect

27、ion in ABS amp circuit section 9LIM servo driverlimit control level signal input 10VR servo drivercontrol reference voltage input (VR=VLG/2) 11CLKDC/DC converter servo driverclock signal input 12OP3 servo driverfilter capacitor connection in ABS amp circuit section 13NI3 servo driverfilter capacitor

28、 connection in ABS amp circuit section 14ERR3CD7 servo drivererror level input (track error signal) 15OP4 servo driverfilter capacitor connection in ABS amp circuit section 16NI4 servo driverfilter capacitor connection in ABS amp circuit section 17ERR4P servo drivererror level input (disc speed erro

29、r signal) 18PHSWGNDCH4 mode setup (if PHSW=high, CH4 operates half-bridge) 19POLnot connectedCH4 polarity monitor output 20CFL4 servo driverpin for connecting filter for capacitor 21CFL3 servo driverpin for connecting filter for capacitor 22OUT4Aservo driver disc motorH-bridge output A 23OUT4Bservo

30、driver disc motorH-bridge output B 24VIN34+ACH3 and CH4 output stage power supply 25OUT3Bservo driver track actuatorH-bridge output B 26PGND34GNDCH3 and CH4 output stage ground 27OUT3Aservo driver track actuatorH-bridge output A 28OUT1Aservo driver focus actuatorH-bridge output A 29PGND12GNDCH1 and

31、CH2 output stage ground 30OUT1Bservo driver focus actuatorH-bridge output B 31VIN12+ACH1 and CH2 output stage power supply 32OUT2Bservo driver slide motorH-bridge output B 33OUT2Aservo driver slide motorH-bridge output A 34CFL1 servo driverpin for connecting filter for capacitor 35CFL2 servo driverp

32、in for connecting filter for capacitor 36VGVGpower supply input (predriver circuit) 3-8 CS 46 524 MPC1825A DC/DC CONVERTER AND BATTERY CHARGER PinNameDirectionDescription 1DCIN+DCDC power supply input 2RS DC/DC converterdetection input of charge current (battery charger block) 3RF2 DC/DC converterco

33、nnection of error amplifier feedback resistor (battery charger block) 4INM2 DC/DC converterinverting input of error amplifier (battery charger block) 5RF1DC/DC converter connection of feedback resistor (switched power supply block) 6INM1 DC/DC converterinverting input of error amplifier (switched po

34、wer supply block) 7INP1 DC/DC converternon-inverting input of error amplifier (switched power supply block) 8DTC DC/DC converterdead time control input (switched power supply block) 9VREFDC/DC converter reference voltage output 10REFIN DC/DC converterexternal reference voltage input 11BATIN DC/DC co

35、nverterinput voltage supervises battery cell 12LOBATDC/DC converter Plow volatge detection output 13CKOUTDC/DC converter servo driverclock output 14RSTBDC/DC converter Preset signal output 15SYCSLGND88.2kHz/176.4kHz mode select input 16SYNCGNDexternal clock input 17PCBP DC/DC convertersystem control

36、 input 18CHGONP DC/DC convertersystem control input 19GNDGNDground 20VCPUDC/DC converter +P3V regulated voltage output 21VOUT3not connectedDC/DC converter control signal output for system power supply 22SW+ADC/DC converter driver output for system power supply (open drain) 23VDODC/DC converter DC/DC

37、 converter output for system power supply 24C2Lexternal connectioncapacitor connection for charge pump 25C1Lexternal connectioncapacitor connection for charge pump 26C1Hexternal connectioncapacitor connection for charge pump 27C2Hexternal connectioncapacitor connection for charge pump 28VGDC/DC conv

38、erter VGcharge pump circuit output 29VOUT1DC/DC converter external driver control signal at DC/DC converter 30VIN DC/DC converterbattery connection (+) 31DCDTBDC/DC converter DCIN detection circuit output 32CHGOUTnot connectedrechargable battery voltage detection circuit output 33BATMDC/DC converter

39、 battery (-)battery connection (-) 34CHGFILexternal connectionexternal filter capacitor connection for battery charger voltage detection 35VOUT2DC/DC converter external driver control signal (battery charger voltage block) 36CHGSWDC/DC converter battery charger switch control output 3-9 CS 46 525 4-

40、14-1 CS 46 526 L= WEAK, H= EMPTY 3.2V - DC/DC - UP-CONVERTEREXT. DC-DOWNCONVERTER switch Inner- motor motor Slide- Disc- from/to signal processing partfrom/to signal processing partfrom/to control part NI-CAD-ACCU POWER CHG_ON SAW_CLOCK ACCU_IN RESET PWM_DM LOBAT BATIN DCDTB SUPPLY/SERVODRIVER PART

41、7956 K13 7956 I12 7952 H14 7951 M12 7950 M12 7264 F11 7259 H 9 7255 E 3 7254 G10 7253 F 8 7252 D10 7251 C 6 6257X I10 6256 H10 6255 B 2 6254 C 2 6252 I 7 6250 A 2 5252 C10 5251 I 8 3969 J14 3968 L13 3967 M13 3966 J13 3961 J12 3958 H18 3957 K13 3956 J13 3955 K12 3954 K12 3953 M13 3952 M12 3951 L11 39

42、50 M11 3299 K 2 3297 G 9 3283 I 9 3282 I 9 3271 H 2 3270 E11 3269 D11 3268 C11 3267 C10 3266 E 7 3265 G 8 3263 D11 3261 D 6 3260 K 3 3259 H 2 3258 H 2 3257 I 1 3256 H 1 3255 I 1 3254 G 3 3253 F 3 3252 G 2 3251 F 2 3243 F11 3242 F10 3241 F10 3240 E 6 2971 L18 2970 J18 2963 H18 2962 M18 2961 M18 2960

43、L18 2958 I18 2957 H18 2956 M14 2955 L14 2954 J14 2953 I14 2952 M13 2951 M12 2950 K12 2280 H 7 2279 J 2 2278 H 3 2277 D10 2275 B 3 2274 C10 2270 D 6 2269 E11 2268 E11 2265 C 9 2264 C 9 2263 E 8 2262 H 7 2261 J 7 2260 J 6 2259 H 7 2258 H 6 2257 F 6 2255 H 2 2254 G 2 2253 F 2 2252 F 2 2250 B 1 1951 L21

44、 1950 I20 1250 B 2 456178910111213141516217181920213 K J I N H G F E D C B A M L K J I N H G F E D C B A M L 456178910111213141516217181920213 6250 SB10-05PCP 6252 SB10-05 6254 SB10-05PCP 6256 BAT254 6257X BAT54 uP uP ESD A SD SDSD SDSD 3271 1M 3263 47k 3k9 3966 3k9 3967 3950 0R05 3951 10k 3958 1k 3

45、253 1M 3251 4k7 3254 1M 3252 4k7 3261 120R 3265 4R7 3266 390R 3256 270k% 3257 220k% 3259 470k 3258 100k 3270 1k8% 3269 8k2% 3268 680R 3267 10R 3955 47k% 3954 47k% 3957 47k 3956 10k 3255 680k 10k 3953 3k3 3952 3297 2R2 3241 10k 3242 470k 3243 22k 3240 120R 3260 10k 3299 1k 3283 22k 3282 22k 5k6 3968 4k7 3969 2k2 3961 +A +A +A +A +3+3 VG VG +uP +3