Philips-SD-4.00-SACH-Service-Manual(1) 电路图 维修手册.pdf

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1、Published by PF0265 Service SingaporePrinted in the NetherlandsSubject to modificationEN 3122 785 12480 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

2、 form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. DVD-Video PlayerDVD Module SD-4.00SA_CH ContentsPage 1Technical Specifications2 2Safety Instructions, Warnings, and Notes6 3Directions for Use (not available)7 4Mechanical Instructions8

3、 5Test Instructions Mono Board DVD-SD4.00SA_CH11 Diagnostic Software Description23 6Block Diagram and Testpoint Overview Block Diagram35 Testpoint Overview Mono Board36 7Electrical Diagrams CVBS; RGB / YUV. RGB / YUV component video signals share the same lines. Therefore, the module Technical Speci

4、ficationsEN 5SD-4.00SA_CH1. is unable to output both RGB and YUV simultanious. Specification.: The output comply fully with PQR-IMS Class III. : DC level - sync bottom at 0.43V 10% (100% white) and 0.9V 10% (black). : Output impedance - 75Ohm. : The following specification points are significantly b

5、etter then PQR_IMS : SNR on all video outputs is better then 65dB. : Video bandwidth - 8MHz (3dB) / 16MHz (3dB) for STi5588 progressive scan. Safety Instructions, Warnings, and NotesEN 6SD-4.00SA_CH2. 2.Safety Instructions, Warnings, and Notes 2.1Safety Instructions 2.1.1General Safety Safety regula

6、tions require that during a repair: Connect the unit to the mains via an isolation transformer. Replace safety components, indicated by the symbol ?, only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical

7、 shock hazard. Safety regulations require that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points: Route the wires/cables correctly, and fix them with the mounted cable clamps. Check the insulation of the mains lead for external

8、damage. Check the electrical DC resistance between the mains plug and the secondary side: 1.Unplug the mains cord, and connect a wire between the two pins of the mains plug. 2.Set the mains switch to the on position (keep the mains cord unplugged!). 3.Measure the resistance value between the mains p

9、lug and the front panel, controls, and chassis bottom. 4.Repair or correct unit when the resistance measurement is less than 1 M. 5.Verify this, before you return the unit to the customer/ user (ref. UL-standard no. 1492). 6.Switch the unit off, and remove the wire between the two pins of the mains

10、plug. 2.1.2Laser Safety This unit employs a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury). Laser Device Unit Type: Semiconductor laser GaAlAs Wavelength: 650 nm (DVD) : 780 nm (VCD/CD) Output Power: 20 mW (DVD+RW writing)

11、 : 0.8 mW (DVD reading) : 0.3 mW (VCD/CD reading) Beam divergence: 60 degree Figure 2-1 Note: Use of controls or adjustments or performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam. 2.2Warnings 2.2.1General All ICs and

12、many other semiconductors are susceptible to electrostatic discharges (ESD, ?). Careless handling during repair can reduce life drastically. Make sure that, during repair, you are at the same potential as the mass of the set by a wristband with resistance. Keep components and tools at this same pote

13、ntial. Available ESD protection equipment: Complete kit ESD3 (small tablemat, wristband, connection box, extension cable and earth cable) 4822 310 10671. Wristband tester 4822 344 13999. Be careful during measurements in the live voltage section. The primary side of the power supply (pos. 1005), inc

14、luding the heatsink, carries live mains voltage when you connect the player to the mains (even when the player is off!). It is possible to touch copper tracks and/or components in this unshielded primary area, when you service the player. Service personnel must take precautions to prevent touching t

15、his area or components in this area. A lightning stroke and a stripe-marked printing on the printed wiring board, indicate the primary side of the power supply. Never replace modules, or components, while the unit is on. 2.2.2Laser The use of optical instruments with this product, will increase eye

16、hazard. Only qualified service personnel may remove the cover or attempt to service this device, due to possible eye injury. Repair handling should take place as much as possible with a disc loaded inside the player. Text below is placed inside the unit, on the laser cover shield: Figure 2-2 2.2.3No

17、tes Dolby Manufactered under licence from Dolby Laboratories. “Dolby”, “Pro Logic” and the double-D symbol are trademarks of Dolby Laboratories. Confidential Unpublished Works. 1992-1997 Dolby Laboratories, Inc. All rights reserved. Figure 2-3 Trusurround TRUSURROUND, SRS and symbol (fig 2-4) are tr

18、ademarks of SRS Labs, Inc. TRUSURROUND technology is manufactured under licence frm SRS labs, Inc. Figure 2-4 CAUTION VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM ADVARSEL SYNLIG OG USYNLIG LASERSTRLING VED BNING UNDG UDSTTELSE FOR STRLING ADVARSEL SYNLIG OG USYNLIG LASERST

19、RLING NR DEKSEL PNES UNNG EKSPONERING FOR STRLEN VARNING SYNLIG OCH OSYNLIG LASERSTRLNING NR DENNA DEL R PPNAD BETRAKTA EJ STRLEN VARO! AVATT AESSA OLET ALTTIINA NKYVLLE JA NKYMTTMLLE LASER STEILYLLE. L KATSO STEESEEN VORSICHT SICHTBARE UND UNSICHTBARE LASERSTRAHLUNG WENN ABDECKUNG GEFFNET NICHT DEM

20、 STRAHL AUSSETSEN DANGER VISIBLE AND INVISIBLE LASER RADIATION WHEN OPEN AVOID DIRECT EXPOSURE TO BEAM ATTENTION RAYONNEMENT LASER VISIBLE ET INVISIBLE EN CAS DOUVERTURE EXPOSITION DANGEREUSE AU FAISCEAU ! Directions for UseEN 7SD-4.00SA_CH3. 3.Directions for Use There is no DFU available Mechanical

21、 InstructionsEN 8SD-4.00SA_CH4. 4.Mechanical Instructions 4.1Dismantling Instruction Figure 4-1 CL 26532053_072.eps 220502 Mechanical InstructionsEN 9SD-4.00SA_CH4. 4.1.1Dismantling of DVD Mono Board 1.See Figure 4-1 for dismantling of DVD module. 2.Unlock the OPU conn 1100, Sledge motor conn 1301 a

22、nd disc motor conn 1300 and remove the Flex connections. 3.Remove the wire connection to Tray motor conn 1302. 4.Remove 4 screws 10 to 13. 5.Remove the Mono Board Note: Flex cables are very fragile,care should be taken during dismounting and when mounting,ensure that Flex cables are inserted properl

23、y into the Flex socket and locked. 4.1.2Opening of Tray Manually Figure 4-2 Figure 4-3 It is possible to open the tray manually by moving the Slider in the position as shown in Figure 4-2 and Figure 4-3 When the slider A is not accessible when a disc is loaded, unlock the tray by pressing the slider

24、 B inward as shown in Figure 4-3.The Tray is now disengaged and can be pulled outwards. When no disc is loaded, unlocking the Tray can also be done by moving the Slider A in the direction as shown in Figure 4-4 and pull the Tray outwards. Figure 4-4 CL 06532147_002.eps 151100 CL 06532147_003.eps 151

25、100 CL 06532147_043.eps 231100 Mechanical InstructionsEN 10SD-4.00SA_CH4. 4.2Service Hints 4.2.1DVD Module This module can be repaired as follows: 1.The VAL6011/14 is a combination of loading mechanism and DVD-mechanism. Both the mechanism is not a repairable unit and in case of failure it has to be

26、 replaced with a new loader VAL6011/14. Note: When replacing with a new VAL6011/14 two solder joints have to be removed after connecting the OPU flex foil to the board. The solder joints which shortcircuits the laser diodes to ground are for protection against ESD. Refer to Figure 4-5 and Figure 4-6

27、 for location of solder points. Figure 4-5 Figure 4-6 2.The mono board has to be repaired down to component level. Repair handling of the monoboard requires a workshop with sophisticated desoldering tools. Test Instructions Mono Board DVD-SD4.00SA_CHEN 11SD-4.00SA_CH5. 5.Test Instructions Mono Board

28、 DVD-SD4.00SA_CH 5.1General Impedance of measuring-equipment should be 1M. Most tests have to be done by software commands. Together with the software command you will find a Ref.# nbr. This is the number of the diagnostic nulceus used for this test. More detailed information can be find in the chap

29、ter “Diagnostic Nuclei”. Levels: Most measurements are digital measurements. The signal levels specification in this document are defined as follows: low: 3.0V LOW: 4.5V All the waveforms measurement carried out in these test instruction will be base on the testpoint indicated in the Monoboard schem

30、atic diagram in the service manual. 5.2General Start-up Measurements 5.2.1Supply Check: Table 5-1 Supply check STi 55xx uses various power supply voltages that depend on which processor is being used Table 5-2 Back-end processor The module operates in power-off and power-on only. There is no standby

31、 mode at module level. In power-off, the module does not response to any communication or signals. Before starting the measurement, ensure that all power supply are connected to the monoboard via connector 1703 or 1701 and that the PC interface cable is connected to the Service interface connector 1

32、500 of the monoboard. 5.2.2Reset Check: To ensure a proper start-up of the monoboard, the back-end reset signal RESETn is required at the STi55xx input (testpoint F906) after power-on. To check the reset timing, measure the RESETn (testpoint F906) and the +3V3ST supply (testpoint F784), reset circui

33、t trigger signal. Figure 5-1 Reset Nb: The RESETn rising edge should be at least 100msec after the +3V3ST (refer to Figure 5-1). If the reset input does not go high then check the reset circuit around transistor 7409. 5.2.3Clock Check To check the correct functioning of the STI55xx, we first have to

34、 check the presence of all clocks. All clocks to be measured with 0.02% tolerance. Table 5-3 Clock check Figure 5-2 27M_CLK Testpoint Supply Used by F781+3V3Main supply voltage F782+5VMain supply voltage F783+12VMain supply voltage F710+3V3SAAnalog 3V3 front-end circuitry F711+3V3SDDigital 3V3 front

35、-end circuitry F785FUR-3V3Digital 3V3 Furore2 interface circuitry F784+3V3STDigital 3V3 back-end circuitry F7243V3DDigital 3V3 cicuitry F787FUR-1V8Digital 1V8 Furore2 core circuitry F786VDDA-FUR Analog 1V8 Furore2 circuitry F717+5VSAAnalog 5V front-end circuitry F715+5VSDDigital 5V front-end circuit

36、ry F721+5VAVAnalog 5V back-end circuitry F718+5VDDigital 5V back-end circuitry F727VDDSTAAnalog STi 55xx circuitry F729VDDSTCCore STi 55xx circuitry F725VDDSTDDigital STi 55xx circuitry Back-end Processor VDDSTA ( Analog ) VDDSTC ( Core ) VDDSTD ( Digital ) STi 5580+2V5+2V5+2V5 STi 5588+1V8+1V8+3V3

37、STi 5519+2V5+2V5+2V5 NameTestpointFrequencyWaveform 384FSF04216.9344MHz Refer to Fig 5-3 27M_CLK_STF93227MHzRefer to Fig 5-2 PCM_CLK_ST F88511.2896MHz Refer to Fig 5-5 Audio_CLKF93511.2896MHz Refer to Fig 5-5 Iguana_CLKF2078.4672MHzRefer to Fig 5-4 ch2 ch1 ch1:dT=73.0ms V1= 65.0mV CH1 2.00V= CH2 2.0

38、0V=MTB50.0ms- 2.92dvch1+ 1 2 T PM3380B CL 16532163_019.eps 290102 PM3380B ch1 CH12.00 V=MTB10.0nsch1+ CL 26532053_062.eps 210502 Test Instructions Mono Board DVD-SD4.00SA_CHEN 12SD-4.00SA_CH5. Figure 5-3 384FS Figure 5-4 Iguana_CLK Figure 5-5 PCM_ST_CLK / Audio_CLK 5.3P Environment: 5.3.1General: Al

39、l the tests are carried out by software tests. To start the software tests, connect a PC to the serial bus of the STI55xx. Use connector 1500 for this connection: Table 5-4 PC connection Now start the terminal program. Make sure that the service-pin (pin 1500-2) of the P is pulled low. The terminal

40、program of your PC should now display: “DVDv4 Diagnostic software version .”. This message already means that the P is running. The first 5 commands from the diagnostic software will be carried out automatically during diagnostic start-up. The other commands can be carried out by selecting the “comm

41、and input” and simply type the reference nbr. to do the test or select the “Menu - driven” test. To be sure that the P is able to run the diagnostic software, serial port will be checked during start-up. Table 5-5 Serial port check With this test, the serial communication is checked in both directio

42、ns. PM3380B ch1 CH12.00 V=MTB20.0nsch1+ CL 26532053_063.eps 210502 PM3380B ch1 CH11.00 V=MTB50.0nsch1+ CL 26532053_064.eps 210502 PM3380B ch1 CL 26532053_065.eps 210502 CH12.00 V=MTB20.0nsch1+ Connector pinSignal 1500-1TXT_SER (STi55xx out) 1500-2SERVICE-mode select 1500-3RXD_SER (STi55xx in) 1500-4

43、RTS_SER (Not in use) 1500-5GND 1500-6CTS_SER (Not in use) 1500-7+5V_SER Ref. #Reference NameRemark (1)BasicSpAccSerial port Access test/ initialisation (2b)BasicInterconSdram Check SDRAM interconnection with CPU (4)BasicSdramWrRCheck Basic SDRAM memory Test Instructions Mono Board DVD-SD4.00SA_CHEN

44、13SD-4.00SA_CH5. 5.3.2Memory Check: The P has a data bus that is connected to a Flash and also internal link to the MPEG SDRAM inteface. At start-up,the SDRAM bus is checked Table 5-6 Memory check CompSdramWrR checks the complete SDRAM for failures inside the IC.The BasicInterconSDRAM check is done

45、by writing H1- ; H2+ ; H2- ; H3+ ; H3- When measurement is completed, switch the discmotor OFF before executing next command 5.6.3Radial Radial ON will only work when the PCB is connected to a CDM and DVD Disc is inserted. Switch the Radial control ON/OFF with the following commands: Table 5-25 Radi

46、al Check the following signals before Radial control ON/OFF Table 5-26 Radial Figure 5-30 RA (BeRadialOff) Figure 5-31 RA (BeRadialOn) Visual check on the laser,when Radial control ON, if the laserlight is visible. Once the check is completed,switch the Radial control OFF before executing next comma

47、nd 5.6.4Sledge Test need a DVD disc in the DVD player to operate properly. Use the following commands to move the sledge: Table 5-27 Sledge Check for the waveform ( Figure 5-32 ) of SL at testpoint F219 Ref. # Command NameRemark 40aBeRadialOnRadial control on 40bBeRadialOffRadial control off ch1 CH1

48、 2.00 V=MTB5.00msch1+ 1 PM3380B CL 16532163_032.eps 230102 PM3380B ch1 CH1200mVMTB5.00msch1 CL 26532053_071.eps 210502 NameTestpointValue (Radial ON) Rad -F1324.3V 0.5V Rad +F1334.3V 0.5V RAF218Refer to Figure 5-30 and 5-31 Ref. # Command NameRemark 41aBeSledgeInSledge inwards 41bBeSledgeOutSledge o

49、utwards ch1 CH1 1.00VMTB250nsch1+ 1 PM3380B CL 16532163_035.eps 230102 ch1 STOP CH1 1.00VMTB 250nsch1+ 1 PM3380B CL 16532163_036.eps 230102 Test Instructions Mono Board DVD-SD4.00SA_CHEN 21SD-4.00SA_CH5. Figure 5-32 SL Check DC vtg on the following testpoint when Sledge at Inward / Outward position Table 5-28 DC vtg check Measure peak to peak signal on SL- and SL+ while moving sledge outwards. Signal will only appear momentary during command BeSledgeOut Table 5-29 Measure input sledge control (sledge in HOME position) Table 5-30 Input sledge control F