Philips-AZ-7381-Service-Manual(1) 电路图 维修手册.pdf

《Philips-AZ-7381-Service-Manual(1) 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Philips-AZ-7381-Service-Manual(1) 电路图 维修手册.pdf（31页珍藏版）》请在收音机爱好者资料库上搜索。

1、MABEL PLATFORM 3A/4A Technical specification .1-1 Connections and controls.1-2 Feature overview.1-3 Accessories .1-3 Safety warnings.1-4 Service hints Repair positions .2-1 Service tools.2-1 Training material .2-1 ESD protection equipment .2-1 Handling chip components.2-2 Service test program .3-1.3

2、-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 layout stage.3 Copperside view.4-6 Componentside view.4-7 Printed circ

3、uit board layout stage.5 Copperside view.4-8 Componentside view.4-9 Exploded view .5-1.5-2 Mechanical partslist.6-1 Electrical partslist .6-1.6-4 CS 46 455 AZ7381 4822 725 26016Published by PW 9802 Service Audio Printed in The Netherlands Subject to modification Portable compact disc player CLASS 1

4、LASER PRODUCT AZ7382 AZ7383 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, el

5、ectronic, 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 46 456 TECHNICAL SPECIFICATION General Dimensions (WxHxD): 128x27.1x136.5mm Weight without batteries: 225g Power supply modes DC-in socket: 4.5-5.5V

6、Primary 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: 320mA nom. 20% Charge time for 80% AY3360: 3.75hrs nom. Charge time for 80% AY33

7、61: 2.0hrs nom. Max. charge time (P controlled) : 5.5hrs nom. Temperature protection: 50C 5C 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 Shoc

8、k resistance by use of car base (ESA off) +X/-X direction: 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 inpu

9、t (ATT)serial control: data input for ATT; 21HS+3standard/double speed operation mode switching input 22DATANPC DACdata input 23BCKNPC DACbit clock input 24LRCKNPC DACLR clock input 3-5 CS 46 466 SAA7374 DECODER AND DIGITAL SERVO IC CD7 (low voltage version) PinNameDirectionDescription 1VSSA1GNDsupp

10、ly (analog) of CD7 2VDDA1+Csupply (analog) of CD7 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 CD

11、7unipolar current input (central diode signal input) 8R1HF-preamp CD7unipolar current input (satellite diode signal input) 9R2HF-preamp CD7unipolar current input (satellite diode signal input) 10IREFT CD7current reference for calibration ADC 11VRHreference output from ADC 12VSSA2GNDsupply (analog) o

12、f CD7 13SELPLL+Cselects whether internal clock 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+Csupply (analog) of CD7

13、20TEST1GNDtest control input 21CRINP CD7crystal/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 actu

14、ator output 28SLCD7 servo driverslide actuator output 29TEST3GNDtest control input 30VDD1P+Csupply (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) 35SB

15、SYCD7 NPCsubcode block sync (3-state) 36SFSYCD7 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 versatile output pin of CD7 42V3CD7 versatile output pin of CD7 (open drain)

16、43KILLCD7 kill output; programmable (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+Csupply (digital) of CD7 48SCLKCD7 NPCserial bit clock output (3-state) 49VSS3GNDsuppl

17、y (digital) of CD7 50CL4CD7 4.2336MHz 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 C

18、D7power-on reset input (active low) 58STATUSCD7 Pservo interrupt request line/CD7 status register output (open drain) 59VDD3C+Csupply core (digital) 60C2FAILCD7 indication of correction failure (open drain) 61CFLGCD7 correction flag output (open drain) 62V1 CD7versatile input pin 63V2 CD7versatile i

19、nput pin 64LDONCD7 HF-preamplaser drive on output (open drain) 3-6 CS 46 467 SM5902AF COMPRESSION-TYPE ANTI-SHOCK MEMORY CONTROLLER NPC PinNameDirectionDescription 1VDD+3supply voltage 2UC1NPC P interface extension I/O line 1 3UC2NPC P interface extension I/O line 2 4UC3NPC P interface extension I/O

20、 line 3 5UC4NPC P interface extension I/O line 4 6UC5NPC P interface extension I/O line 5 7DITNPC optical outputdigital audio interface output 8TEST2+3test pin 9CLKDAC NPC16.9344MHz clock input 10VSSGNDground 11YSRDATACD7 NPCaudio serial data input 12YLRCKCD7 NPCaudio serial L/R clock input 13YSCKCD

21、7 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 block clock sign

22、al 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 DRAMDRAM OE control o

23、utput (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 control outpu

24、t (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 43A2NPC DRAMD

25、RAM address output 2 44A3NPC DRAMDRAM address output 3 3-7 CS 46 468 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 driverfilter capacit

26、or 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 connection in ABS amp

27、 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 connection in

28、 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 error signal) 18PH

29、SWGNDCH4 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 driver disc mo

30、torH-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 CH2 output sta

31、ge 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 driverpin for connect

32、ing filter for capacitor 36VGVGpower supply input (predriver circuit) 3-8 CS 46 469 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 converterconnection of er

33、ror 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 power supply blo

34、ck) 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 converterinput v

35、oltage 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 input 18CHGON

36、P 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 converter out

37、put 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 converter VGcharge

38、 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 battery (-)ba

39、ttery 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 46 470 4-14-1 CS 46 471

40、 TO SIGNAL PROCESSING PART Disc- Slide- motor motor Inner- switch FROM/TO SIGNAL PROCESSING PART FROM/TOCONTROL PART 14 58 NJM2903 L= WEAK, H= EMPTY CHG_ON CHG_ON POWER POWER DCDTB DCDTB ACCU_IN SAW_CLOCK RESET PWM_DM LOBAT BATIN REF_ON T_ACCU PWM_OUT PWM_IN U_CHG SUPPLY/SERVODRIVER PARTSUPPLY/SERVO

41、DRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVODRIVER PARTSUPPLY/SERVOD

42、RIVER PARTSUPPLY/SERVODRIVER PART L=temperature too high 100k 3959P 3246 1M 3260 10k 3299 1k 3297 1R8 5k6 3968 3295 100R 3k3 1K* 3952 10k 3k3* 3953 22k 3250A 3262 470R 3264X 100R 3255 270k% 680k%*270k%* 3290A 2k2 3292A 12k 3293A 100k 3289A 22k 3288A 33k 3285A 100k 3286A 100k 3287A 22k 3280A 10k 3279

43、A 470k 3281A 100k 3291A 10k 3277A 22k 3275A 8k2 3276A 5k6 3274A 10k NTC 3273A 5k6 3294A 10k 3272 100k 3278A 8k2 3956 10k 3957 47k 3954 47k% 3955 47k% 3267 10R 3268 680R 3269 8k2% 3270 1k8% 3258 100k 3259 470k 3257 220k% 3256 220k% 3266 390R 3265 1R8 2R2* 2R2* 3261 270R 3252 4k7 3254 1M 3251 4k7 3253

44、 1M 3958 0R05 3951 10k 3950 0R05 270k 3960P 270k 3962P 270k 3964P 3k9 1k2* 3967 3k9 3966 3263 47k 3271 680k 1M* 22R 3298A 3241 22k 3240 22k 3243 150k 3242 100k 3249A 22k 3965P 680k 2k2 3961 4k7 3969 uP SD SDSDSD SD ESD SDSD SD 3966 J13 3965P K12 7953P H19 3964P M19 3962P I19 3961 J12 3960P H19 3959P H20 3958 H18 3957 K13 3956 J13 3955 K12 3954 K12 7952 H14 3953 M13 3952 M12 3951 L11 3950 M11 3299 K 2 3298A C13 3297 G 9 3295 D 7 7956 I12 3294A D20 3293A D19 7951 M12 3292A F18 3291A E18 3290A D18 3289A F18 3288A E18 3287A E17 3286A D17 3285