Philips-DVD-723-743-Service-Manual(1) 电路图 维修手册.pdf
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1、Published by MW 0263 Service PaCEPrinted in the NetherlandsSubject to modificationEN 3122 785 12240 Copyright 2002 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 for
2、m or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. DVD-Video PlayerDVD723-743 DVD723 /001 /021 /051 DVD743 /001 /021 /051 ContentsPage 1Technical Specs and Connection Facilities2 2Safety Instructions, Warnings, Notes, and Service Hints4 3Di
3、rections for Use6 4Mechanical- and Dismantling Instructions19 5Diagnostic Software, Trouble Shooting and Test Instructions22 6Wiring-, Block Diagrams Block Diagram41 Wiring Diagram42/43 7Electrical Diagrams and Print-LayoutsDiagram PWB Power Supply Unit4445 AV Board: Video if it is, press OPEN/CLOSE
4、, if it is not, press STOP. By pressing PLAY the script will proceed to the next test. If the user presses PLAY before OPEN/CLOSE or STOP, the DispLed nucleus will return TRUE (LED test successful). 5.3.3Keyboard Test The keyboard of the DVD player is tested by nucleus DispKeyb. The user is expected
5、 to press all keys on the local keyboard once. The code of the key pressed is shown on the local display (1 hexadecimal digit) immediately followed by a (hexadecimal) number indicating how many times that key has been pressed. Example of the local display during this test: Figure 5-7 The key-codes d
6、isplayed on the local display will scroll from right to left when the display gets full, the text K will remain on display. Figure 5-8 If any keys are detected more than once (due to hardware error), the key-code is displayed twice (or more), with the second digit increased by 1. If the user does no
7、t press all keys minimally once (in any order), the DispKeys nucleus will return FALSE and cause an error in the overall result of the player script. The user can leave the keyboard test by pressing the PLAY key on the local display of the DVD player for at least one full second. The result of the k
8、eyboard test is shown on local display as follows: Figure 5-9 Or Figure 5-10 Pressing PLAY on the local keyboard again will proceed to the next text. 5.3.4Remote Control Test The remote control of the DVD player is tested by nucleus DispRc. The user must press any key on the remote control just once
9、. The codes of the key pressed will be shown on the local display in hexadecimal format. Example: Figure 5-11 If OK, press OPEN/CLOSE If OK, press OPEN/CLOSE If OK, press OPEN/CLOSE If NOK, press STOP If NOK, press STOP If NOK, press STOP press PLAY to continue CL 16532162_031.eps 080102 CL 19653216
10、2 032 eps 080102 KEY IDKEY 0PLAY/PAUSE 1STOP 2OPEN/CLOSE 3STANDBY 4NEXT 5PREVIOUS 7SMART PICTURE 8NAVIGATION -UP 9NAVIGATION -DOWN ANAVIGATION - LEFT BNAVIGATION - RIGHT CDISC MENU DOK ESOUND CL 26532039_027.eps 203020 CL 16532162 033 eps 080102 CL 16532162 034 eps 080102 CL 16532162 035 eps 140102
11、Diagnostic Software, Trouble Shooting and Test InstructionsEN 25DVD 723-7435. In this example 23 is the hexidecimal code of the pressed RC key. The user can leave the remote-control test by pressing PLAY on the local keyboard of the DVD player. The remote control test is successful if a code was rec
12、eived before the user pressed the PLAY key. Pressing the PLAY key, before pressing a key on the remote control, gives an error in the remote control test (note that the remote control test will also fail if a key on the remote control was pressed but no code was received). The remote control test do
13、es not check upon the contents of the received code, that is it will not be checked if the received code matches the key pressed. If desired, the user can manually check this code by using a code-table for the remote control key-codes. Figure 5-12 After pressing PLAY, the result of the remote contro
14、l test is displayed on the local display of the DVD player as follows: Figure 5-13 Or Figure 5-14 Pressing PLAY on the local keyboard again will proceed to the next test. 5.3.5P50 Loop-Back Test For the P50 loop-back test, the user must first press a key to decide if the test is to be performed. The
15、 display will show the following message: Figure 5-15 If the user presses STOP, the P50 test will be skipped. If the user presses OPEN/CLOSE, the P50 test is performed and the result is displayed as follows: Test successful: Figure 5-16 Test fails: Figure 5-17 Press the PLAY key to continue to the n
16、ext text RC Key id Hexadecimal code STANDBY0C 11 22 33 44 55 66 77 88 99 00 RETURN83 DISPLAYEF DISC MENU54 SYSTEM MENU82 CURSOR UP58 CURSOR DOWN59 CURSOR LEFT5A CURSOR RIGHT5B OK5C PREVIOUS21 NEXT20 STOP31 PLAY2C PAUSE30 SUBTITLE4B ANGLE85 ZOOMF7 AUDIO4E REPEAT1D REPEAT A-B3B SHUFFLE1C SCAN2A CL 165
17、32162_037.eps 080102 CL 96532065 013 eps 120799 CL 96532065 014 eps 120799 CL 16532007 004 eps 090102 CL 16532007 005 eps 090102 CL 16532007 006 eps 090102 Diagnostic Software, Trouble Shooting and Test InstructionsEN 26DVD 723-7435. 5.4Mono PCB Digital Part 5.4.1Picture Test The picture test is per
18、formed by putting a predefined picture (colour bar) on the display (nucleus VideoColDencOn), and asking the user for confirmation. The display will show the following message: Figure 5-18 By pressing OPEN/CLOSE the user confirms the test, pressing STOP will indicate the picture was invisible or inco
19、rrect. Pressing PLAY will proceed to the next test. If the user presses PLAY without pressing OPEN/CLOSE or STOP first, the result of this test will be TRUE (picture ok). Note: The colour bar must be simultaneously available on the CVBS, YC, and RGB (or YUV) outputs available. On the SCART only the
20、CVBS and RGB signals will be available. 5.4.2Sound 1 note that this test will not contribute to the test result of the Basic Engine. Pressing PLAY proceeds to the next test, after the disc motor has been shut off with a call to nucleus BeDiscMotorOff. 5.5.8Tray Test As a last action for the Basic En
21、gine tests, the tray test is repeated. The local display will look as follows: Figure 5-29 This test is meant to give the user the opportunity to remove the disc in the tray. The tray position can be toggled using the OPEN/CLOSE key. The tray will be closed (by the software, if it is open) before pr
22、oceeding to the next test when the user presses the PLAY key. 5.5.9Error Log (See Table on Page 25) Reading the error log and error bits information can be useful to determine any errors that occurred recently during normal operation of the DVD player. Reading the error log is done by nucleus LogRea
23、dErr. The display during the errorlog readout looks as follows : Figure 5-30 Note: Previous versions of the diagnostic software showed a 8-digit error code. Due to limitations in the number of digits that can be displayed by some front panel displays, the most significant digits will not be shown. T
24、his can be done since all the error codes used by this player has set these 2 digits to “00” By pressing OPEN/CLOSE or STOP the user can move forward or backward (respectively) through the logged error codes. If 0000 is displayed at all positions, the error log is empty. Display of the logged errors
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