Table of Contents
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Portable compact disc player
TABLE OF CONTENTS
Technical specification ......................................................1-1
Connections and controls ..................................................1-2
Feature overview ...............................................................1-3
Accessories .......................................................................1-3
Safety warnings .................................................................1-4
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 .................................................2-3...2-4
Start-up procedure.............................................................2-5
Fault finding guide .....................................................2-5...2-9
©
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, electronic, mechanical, photocopying,
or otherwise without the prior permission of Philips.
Published by PW 9713 Service Audio
Printed in The Netherlands
Subject to modification
Blockdiagram .....................................................................3-1
Pinning of ICs ............................................................3-2...3-4
Circuit diagrams
Supply/Servodriver part.................................................4-1
Signal processing part...................................................4-2
Control part ...................................................................4-3
Audio part......................................................................4-4
Copperside view............................................................4-5
Componentside view .....................................................4-6
Exploded view ...................................................................5-1
Mechanical partslist ...........................................................5-1
Electrical partslist ......................................................6-1...6-3
00/05
AZ7565/
00/05
AZ7566/
17/17T
SHARON PLATFORM 4
CLASS 1
LASER PRODUCT
© 4822 725 26007
CS 46 427
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Related Manuals for Philips AZ7562
Summary of Contents for Philips AZ7562
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Page 1: Table Of Contents
LASER PRODUCT © 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, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. -
Page 2: Technical Specification
TECHNICAL SPECIFICATION General Shock resistance (ESA off) Dimensions (WxHxD) : 134x30.5x154mm +X/-X direction : >2.5G Weight without batteries : 250g +Y/-Y direction : >2.5G +Z/-Z direction : >2.0G Power supply modes Shock resistance by use of car base (ESA off) DC-in socket : 4.5-5.5V Battery 2xLR6... -
Page 3: Connections And Controls
CONNECTIONS AND CONTROLS OPTICAL DIGITAL OUTPUT 6 V DC STOP PROGRAM HEADPH. / REMOTE MODE OPEN BATTERIES PLAY / PAUSE HOLD / RESUME VOLUME DISPLAY PREVIOUS NEXT DISPLAY ... Window for showing the different playing modes, tracks and times §... - Page 4 – – – – → → → X..supplied with the set, O..optional available CS 46 430...
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Page 5: Safety Warnings
SAFETY WARNINGS © ñ WARNING WAARSCHUWING All ICs and many other semiconductors are susceptible to Alle IC´s en vele andere halfgeleiders zijn gevoelig voor electrostatic discharges (ESD). Careless handling during electrostatische ontladingen (ESD). repair can reduce life drastically. Onzorgvuldig behandelen tijdens reparatie kan de levensduur When repairing, make sure that you are connected with the drastisch doen vermindern. -
Page 6: Service Hints
SERVICE HINTS REPAIR POSITION COMPONENTSIDE REPAIR POSITION COPPERSIDE To get access to the componentside of the To get access to the copperside of the printed circuit board proceed as follows: printed circuit board proceed as follows: 1. Disconnect DC-cable and headphone 1. -
Page 7: Handling Chip Components
HANDLING CHIP COMPONENTS CS 46 433... -
Page 8: Service Test Program
SERVICE TEST PROGRAM 6. SERVO TEST Purpose: Check door- and inner-switch, movement of slide and acceleration of discmotor. • To enter the servo test start service test program and press the 1. PRELIMINARY SETUP “PLAY” button. • To enter the service test program hold the keys “PROGRAM” •... - Page 9 FLOW CHART To enter service test program hold PRELIMINARY “PROGRAM” & “STOP”-button depressed, SETUP while turning POWER ON. ATTENTION: LASER IS SWITCHED ON Display shows → AVOID DIRECT EXPOSURE TO BEAM !! C x ..result of CD7-check IC-CHECK software-version n y ..result of NPC-check Display shows (e.g.
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Page 10: Start-Up Procedure
START-UP PROCEDURE MAIN FAULT FINDING GUIDE FAULT FINDING GUIDE FOCUS PATH Start-up procedure for ext.DC supply, CHECK POWER OFF CHECK no accu inserted, hold-switch in off pos., CD-DRIVE AND (stand-by) FOCUS PATH resume-mode off, CD-lid closed. SERVO CIRCUITS enter PLAY service program turntable and pressed ? -
Page 11: Fault Finding Guide
FAULT FINDING GUIDE LIGHTPATH CHECK LIGHTPATH laser light ? pin 8 of 7800 =2.5V ? voltage betw. pin 2/3 of 1800 check =1.2V ? supply +3.5 replace CD-drive pin 7 of 7800 =high ? voltage on pin 4 of 1800 check =1.2V ? CD7 7830... - Page 12 FAULT FINDING GUIDE TURNTABLE MOTOR PATH CHECK TURNTABLE MOTOR PATH discmotor turning ? connections turntable and to/from CD-drive disc free ? OK ? mechanical repair obstruction ? connections focus OK ? remove replace PWM-output CHECK obstruction CD-drive on pin 33 of FOCUS PATH 7830 ? eye-pattern...
- Page 13 FAULT FINDING GUIDE RADIAL TRACKING CHECK RADIAL TRACKING enter service program “SERVO TEST” slide movement ? servo signals on slide motor connections servo signals to/from CD-drive on pin 37 of OK ? 7950 ? enter replace repair check check service program CD-drive connections servo driver 7950...
- Page 14 FAULT FINDING GUIDE FUNCTIONAL TEST FUNCTIONAL TEST all previous tests passed start-over drive&servo checks mechanical obstruction ? remove obstruction set sensitive to temperature localize temperature sensitive part&repair replace CD-drive still errors during playback replace set SET REPAIRED CS 46 440...
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Page 15: Blockdiagram
BLOCKDIAGRAM DISPLAY ILLUMINATION P TMP87CH20F LCD DRIVER +µP RESET RESET CLOCK GEN. 16bit TIMER & TIMING COUNTER 4MHz DIGITAL OUT KEY ILLUMIN. (not on all versions) DISC KEYBOARD I/O PORTS RCI, RCO, RCD DOBM (FROM CD7) TURNTABLE MOTOR 4Mbit 4Mbit RC-CIRCUIT (FROM/TO RC-SOCKET) DRAM... - Page 16 PINNING OF INTEGRATED CIRCUITS SAA7372 – DECODER AND DIGITAL SERVO IC CD7 Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– VSSA1 supply (analog) of CD7 TDA1302T – HF-PREAMPLIFIER AND LASER SUPPLY CIRCUIT VDDA1 +3.5 supply (analog) of CD7 HF-preamp → CD7 unipolar current input (central diode signal input) Name Direction Description...
- Page 17 SM5856A1F – COMPRESSION-TYPE ANTI-SHOCK MEMORY CONTROLLER (NPC) Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– +3.5 supply voltage µP interface extension I/O line 1 µP interface extension I/O line 2 µP interface extension I/O line 3 µP interface extension I/O line 4 µP interface extension I/O line 5 NTEST1 +3.5 test input1...
- Page 18 MPC1718 – 4-STAGE PWM SERVODRIVER Name Direction Description ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– → servo driver Hin2 power supply for H-bridge output section 2 servo driver → disc motor Hout2A H-bridge PWM output 2A DC/DC converter 2 → LC-filter DCout2 connects H-bridge DC/DC converter 2 to LC-filter power supply for servo driver DC/DC converter 1 →...
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Page 19: Supply/Servodriver Part
3291 B 8 Explanation of itemnumber extentions: Set description: 3292A B 9 FOCUS_IN 3293A C 8 no extension ... common itemnumbers AZ7562....A+B+D+H+K 3294 C 9 A ..... charge circuit AZ7565....A+B+D+E+H+K SLIDE_IN 3295A B10 B ..... LCD illumination AZ7566....A+B+C+D+H+K 3296A E14 C ..... -
Page 20: Signal Processing Part
2821 M 5 2824 C12 Explanation of itemnumber extentions: Set description: 4M BIT (1M x 4) DRAM 2825 D14 no extension ... common itemnumbers AZ7562....A+B+D+H+K 2826 D15 A ..... charge circuit AZ7565....A+B+D+E+H+K 2827 J14 PORES 2829 J 8 B ..... -
Page 21: Control Part
1400 A 8 1410 G 3 CONTROL PART 1411 G 5 1412 H 6 1413 I 6 1414 I 5 1415 G 6 DC_ON 1416 H 5 DC_ON 1400 LPH6380-1 1417 H 3 ACCU_IN 1418 G 3 ACCU_IN 1430 I 2 CHG_ON 2395 I11 COM 0..3... -
Page 22: Audio Part
Supply: +LF 6490D E13 Explanation of itemnumber extentions: Set description: 7300 C 2 7301 F 2 no extension ... common itemnumbers AZ7562....A+B+D+H+K 7320 G 6 A ..... charge circuit AZ7565....A+B+D+E+H+K 7322 D 9 B ..... LCD illumination AZ7566....A+B+C+D+H+K... -
Page 23: Printed Circuit Board Copperside View
PRINTED CIRCUIT BOARD – COPPERSIDE VIEW 2255 E 3 2842E C 4 3351 A 3 3819 B 4 7286 E 4 2300 B 4 2843 C 4 3352 B 3 3820 B 4 7288A E 4 2301 B 3 2844 C 4 3353 A 3 3821 B 4 7300 B 3... -
Page 24: Componentside View
PRINTED CIRCUIT BOARD – COMPONENTSIDE VIEW 1250 C 1 3363 A 2 7901 B 2 1280A E 4 3364 A 2 7920 C 2 1350 A 3 3366 A 2 7921 C 1 1400 C 6 3368 A 2 7922 D 2 1410 B 6 3370 A 2 1411 C 6... -
Page 25: Exploded View
4822 402 10157 PIN DETECTION 4822 492 11067 SPRING-BATTERY MINUS 4822 492 11065 SPRING-BATTERY SHORT 4822 417 11347 HINGE-DOOR-BATTERY AZ7562, AZ7566 4822 417 11348 HINGE-DOOR-BATTERY AZ7565 4822 443 10579 DOOR-BATTERY AZ7565 4822 443 10581 DOOR-BATTERY AZ7566 417 A 4822 463 11028... -
Page 26: Electrical Partslist
ELECTRICAL PARTSLIST CAPACITORS CAPACITORS RESISTORS 2466 © 4822 126 11692 1µF 2958 © 4822 122 33496 100nF 3346 © 4822 051 20223 22kΩ 0,1W 2490 © 4822 126 13344 1,5nF 2959 © 4822 122 33496 100nF 3347 © 4822 051 20104 100kΩ... - Page 27 RESISTORS RESISTORS 3498 © 4822 051 20829 82Ω 0,1W 3922 © 4822 117 11437 8,2kΩ 0,1W 3499 © 4822 117 10833 10kΩ 0,1W 3923 © 4822 117 11139 1,5kΩ 0,1W 3800 © 4822 051 10102 1kΩ 0,25W 3924 © 4822 051 20563 56kΩ...
- Page 28 TRANSISTORS 7465 © 4822 130 62748 BC858 7494 © 4822 130 62748 BC858 7831 © 4822 130 62748 BC858 7832 © 4822 130 61207 BC848 7901 © 4822 130 61207 BC848 7920 © 4822 130 63357 2SK1717 7922 © 4822 130 63646 2SD1623T 7940 ©...