Philips-DVP-3050-V-Service-Manual(1) 电路图 维修手册.pdf

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1、Contents Chapter Adjustment Procedures Schematic Diagrams and CBAs Exploded Views Mechanical and Electrical Parts Lists Sec. 1: Survey of versions: Published by FU-KC 0524 Service AV Systems Printed in The Netherlands Subject to modification Version 1.0 /75 PAL DVD + VCR CombiDVP3050V/75 c Copyright

2、 2005 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.

3、 CLASS 1 LASER PRODUCT KLASSE 1 LASER PRODUKT KLASS 1 LASER APPARAT CLASSE 1 PRODUIT LASER GB 3139 785 31020 Service Manual ServiceService ServiceService Service RadioFans.CN 收音机爱 好者资料库 MAIN SECTION DVD PLAYER when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-I

4、C and heat up. Then remove (glue will be melted). (Fig. S-1-6) 4.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) CAUTION: 1.The Flat Pack-IC shape may differ by models. Use an appropriate hot-air flat pack-IC desoldering machine, whose shape matches that of the Flat Pack-IC. 2.Do

5、not supply hot air to the chip parts around the flat pack-IC for over 6 seconds because damage to the chip parts may occur. Put masking tape around the flat pack-IC to protect other parts from damage. (Fig. S-1-2) Fig. S-1-1 1-3-3DVDN_PC_SN 3.The flat pack-IC on the CBA is affixed with glue, so be c

6、areful not to break or damage the foil of each pin or the solder lands under the IC when removing it. With Soldering Iron: 1.Using desoldering braid, remove the solder from all pins of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easi

7、ly. (Fig. S-1-3) 2.Lift each lead of the flat pack-IC upward one by one, using a sharp pin or wire to which solder will not adhere (iron wire). When heating the pins, use a fine tip soldering iron or a hot air desoldering machine. (Fig. S-1-4) 3.Bottom of the flat pack-IC is fixed with glue to the C

8、BA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be melted). (Fig. S-1-6) 4.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) With Iron Wire: 1.Using desoldering braid, remove the solder from all pins

9、 of the flat pack-IC. When you use solder flux which is applied to all pins of the flat pack-IC, you can remove it easily. (Fig. S-1-3) 2.Affix the wire to a workbench or solid mounting point, as shown in Fig. S-1-5. 3.While heating the pins using a fine tip soldering iron or hot air blower, pull up

10、 the wire as the solder melts so as to lift the IC leads from the CBA contact pads as shown in Fig. S-1-5. 4.Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply soldering iron to center of the flat pack-IC and heat up. Then remove (glue will be me

11、lted). (Fig. S-1-6) 5.Release the flat pack-IC from the CBA using tweezers. (Fig. S-1-6) Note: When using a soldering iron, care must be taken to ensure that the flat pack-IC is not being held by glue. When the flat pack-IC is removed from the CBA, handle it gently because it may be damaged if force

12、 is applied. Hot-air Flat Pack-IC Desoldering Machine CBA Flat Pack-IC Tweezers Masking Tape Fig. S-1-2 Flat Pack-IC Desoldering Braid Soldering Iron Fig. S-1-3 Fine Tip Soldering Iron Sharp Pin Fig. S-1-4 To Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig. S-1-5 Fine Tip Solderi

13、ng Iron CBA Flat Pack-IC Tweezers Fig. S-1-6 1-3-4DVDN_PC_SN 2. Installation 1.Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA so you can install a replacement flat pack-IC more easily. 2.The “” mark on the flat pack-IC indicates pin 1. (See Fig. S

14、-1-7.) Be sure this mark matches the 1 on the PCB when positioning for installation. Then presolder the four corners of the flat pack-IC. (See Fig. S-1-8.) 3.Solder all pins of the flat pack-IC. Be sure that none of the pins have solder bridges. Instructions for Handling Semi- conductors Electrostat

15、ic breakdown of the semi-conductors may occur due to a potential difference caused by electrostatic charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1 M) that is properly grounded to remove any static electricity that may be charged on the body. 2. G

16、round for Workbench Be sure to place a conductive sheet or copper plate with proper grounding (1 M) on the workbench or other surface, where the semi-conductors are to be placed. Because the static electricity charge on clothing will not escape through the body grounding band, be careful to avoid co

17、ntacting semi-conductors with your clothing. Example : Pin 1 of the Flat Pack-IC is indicated by a mark. Fig. S-1-7 Presolder CBA Flat Pack-IC Fig. S-1-8 CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M CBA 1-4-1H9923FIS FUNCTION INDICATOR SYMBOLS Note: If a mechanical malfunction occurs, t

18、he power is turned off. When the power comes on again after that by pressing STANDBY-ON button, an error message is displayed on the TV screen for 5 seconds. TV screen When reel or capstan mechanism is not functioning correctly When tape loading mechanism is not functioning cor- rectly When cassette

19、 loading mechanism is not functioning correctly When the drum is not working properly P-ON Power safety detection MODEINDICATOR ACTIVE When reel or capstan mechanism is not functioning correctly “A R” is displayed on a TV screen. (Refer to Fig. 1.) When tape loading mechanism is not func- tioning co

20、rrectly “A T” is displayed on a TV screen. (Refer to Fig. 2.) When cassette loading mechanism is not functioning correctly “A C” is displayed on a TV screen. (Refer to Fig. 3.) When the drum is not working properly “A D” is displayed on a TV screen. (Refer to Fig. 4.) P-ON Power safety detection “A

21、P” is displayed on a TV screen. (Refer to Fig. 5.) A R Fig. 1 A T Fig. 2 A C Fig. 3 Fig. 4 A D A P Fig. 5 1-5-1H9924PFS PREPARATION FOR SERVICING How to Enter the Service Mode About Optical Sensors Caution: An optical sensor system is used for the Tape Start and End Sensors on this equipment. Carefu

22、lly read and follow the instructions below. Otherwise the unit may operate erratically. What to do for preparation Insert a tape into the Deck Mechanism Assembly and press the PLAY button. The tape will be loaded into the Deck Mechanism Assembly. Make sure the power is on, connect TP501 (S-INH) to G

23、ND. This will stop the function of Tape Start Sensor, Tape End Sensor and Reel Sensors. (If these TPs are connected before plugging in the unit, the function of the sensors will stay valid.) See Fig. 1. Note: Because the Tape End Sensors are inactive, do not run a tape all the way to the start or th

24、e end of the tape to avoid tape damage. Q504 Q503 TP501 S-INH Fig. 1 1-6-1H9923IB OPERATING CONTROLS AND FUNCTIONS 1-6-2H9923IB 1-7-1H9923SNA SIGNAL NAME ABBREVIATIONS Signal NameFunction -FLFIP Drive Power Supply A-COMAudio Head Common AUDIO-INAudio Signal Input AUDIO(L)-INAudio(L) Signal Input AUD

25、IO(L)-IN-FAudio(L) Signal Input (Front) AUDIO(R)-INAudio(R) Signal Input AUDIO(R)-IN-FAudio(R) Signal Input (Front) AUDIO-IN-FAudio Signal Input (Front) A-MODEHi-Fi Tape Detection Signal AUDIO(L)- MUTE Audio Mute(L) Output AUDIO(R)- MUTE Audio Mute(R) Output AUDIO-MUTE- H Audio Mute Control Signal (

26、Mute = “H”) AUDIO(L)-OUTAudio(L) Signal Output AUDIO(R)- OUT Audio(R) Signal Output AUDIO-PB/ REC Normal Audio Play Back/Record Signal AE-HAudio Erase Head AFC Automatic Frequency Control Signal AL+12V Always +12V with AC Plug Connected AL+2.8V Always +2.8V with AC Plug Connected AL+4.0V Always +4.0

27、V with AC Plug Connected AL+44V Always +44V with AC Plug Connected AL+5V Always +5V with AC Plug Connected AL-30V Always -30V with AC Plug Connected AMPCCTL AMP Connected Terminal AMPVccAMPVcc AMPVREF inV-Ref for CTL AMP AMPVREF OUT V-Ref for CTL AMP AMPVssAMPVss ASPECTDVD Aspect Signal AUDIO+5V+5V

28、at Audio Signal AVcc A/D Converter Power Input/ Standard Voltage Input C-CONTCapstan Motor Control Signal C-F/R Capstan Motor FWD/REV Control Signal (FWD=”L”/REV=”H”) C-FG Capstan Motor Rotation Detection Pulse C-ROTA Color Phase Rotary Changeover SIgnal C-SYNCComposite Synchronized Pulse CLKSELCloc

29、k Select (GND) CTL(+) Playback/Record Control Signal (+) CTL(-)Playback/Record Control Signal (-) CTLAMP outTo Monitor for CTL AMP Output D-CONTDrum Motor Control Signal D-PFG Drum Motor Phase/Frequency Generator D-REC-HDelayed Record Signal D-V-SYNCDummy V-sync Output DISPLAY-CLKVFD Driver IC Contr

30、ol Clock DISPLAY-DATAVFD Driver IC Control Data DISPLAY-STBVFD Driver IC Chip Select Signal DRV-CLKVFD Driver IC Control Clock DRV-DATAVFD Driver IC Control Data DRV-STBVFD Driver IC Chip Select Signal DVD-AUDIO(L)DVD Audio(L) Signal DVD- AUDIO(R) DVD Audio(R) Signal DVD-A(R)- MUTE DVD Audio(R) Mute

31、 Control Signal DVD-A-MUTEDVD Audio Mute Control Signal DVD- AUDIO(L)-OUT DVD Audio(L) Signal Output DVD- AUDIO(R)- OUT DVD Audio(R) Signal Output DVD-LED“DVD” LED Signal Output DVD-OPEN/ CLOSE DVD Open/Close at High DVD-P- ON+12V +12V at DVD Power-On Signal DVD-P- ON+3.3V +3.3V at DVD Power-On Sign

32、al DVD-P-ON+5V+5V at DVD Power-On Signal DVD-PLAYDVD Play at High DVD-POWERDVD Power Control Signal DVD-POWER- MONITOR DVD Power Monitor Signal (P- off=L, P-on=H) DVD-STOPDVD Stop at High DVD-VIDEODVD Video Control Signal END-STape End Position Detect Signal EV+1.2V+1.2V Power Supply Signal NameFunc

33、tion 1-7-2H9923SNA EV+11V+11V Power Supply EV+3.3V+3.3V Power Supply F1Filament Power Supply 1 F2Filament Power Supply 2 FE-HFull Erase Head FP-CLKClock Input FP-DIN Serial Data Input FP-DOUT Serial Data Output FP-STB Serial Interface Strobe FSC-IN 4.43MHz 4.43MHz Clock Input H-A-COMPHead Amp Compar

34、ator Signal H-A-SWVideo Head Amp Switching Pulse Hi-Fi-AUDIO(L)Hi-Fi Audio(L) Head Hi-Fi- AUDIO(R) Hi-Fi Audio(R) Head Hi-Fi-COM Hi-Fi Audio Head Common Hi-Fi-H-SWHiFi Audio Head Switching Pulse HLFLPF Connected Terminal (Slicer) I/P-SW Interlace/Progressive Switching Signal IIC-BUS-SCLIIC BUS Contr

35、ol Clock IIC-BUS-SDAIIC BUS Control Data INPUT- SELECT Input Selector Control Signal KEY-1Key Scan Input Signal 1 KEY-2Key Scan Input Signal 2 LD-SW Deck Mode Position Detector Signal LM-FWD/REVLoading Motor Control Signal MOD-A Modulator Audio Output Signal MOD-VModulator Video Output Signal N-A-PB

36、 Normal Audio Playback N-A-REC Normal Audio Recording OSC Oscillator Input OSCinClock Input for letter size OSCoutClock Output for letter size OSD-V-INOSD Video Signal Input OSD-V-OUTOSD Video Signal Output OSDVccOSDVcc OUTPUT- SELECT Output Select P-DOWN-H Power Voltage Down Detector Signal P-ON+15

37、V+15V at Power-On Signal P-ON+3.3V+3.3V at Power-On Signal P-ON+44V+44V at Power-On Signal P-ON+5V+5V at Power-On Signal P-ON+9V+5V at Power-On Signal Signal NameFunction P-ON-HPower On Signal at High P61/LPP61/LP P80/CP80/C Terminal PG-DELAY Video Head Switching Pulse Signal Adjusted Voltage POW-SA

38、FP-ON Power Detection Input Signal POWER-LED“POWER” LED Signal Output PWRCON-INPower Down REC-LED“REC” LED Signal Output REC-SAF-SW Recording Safety SW Detect (With Record tab=”L”/ With out Record tab=”H”) REMOCONRemote Control Sensor REMOTE-DVDDVD Remote Control Sensor REMOTE- VIDEO Remote Control

39、Sensor RESETSystem Reset Signal (Reset=”L”) RF-SWVideo Head Switching Pulse SIFSource Input Format SPDIF Digital Audio Interface Format Signal ST-STape Start Position Detector Signal T-REELTake Up Reel Rotation Signal TIMER+5V+5V at Timer TIMER-LED“TIMER” LED Signal Output TU-AUDIOTuner Audio Input

40、Signal TU-AUDIO(L)Tuner Audio(L) Input Signal TU-AUDIO(R)Tuner Audio(R) Input Signal TU-VIDEOTuner Video Input Signal TUNER(TUN)- SW1 Tuner System Control Signal Output TUNER(TUN)- SW2 Tuner System Control Signal Output VIDEO(L)Video L Head VIDEO(R)Video R Head VIDEO-COMVideo Head Common V-ENVVideo

41、Envelope Comparator Signal VIDEO-INVideo Signal Input VIDEO-IN(L)Video(L-ch) Signal Input VIDEO-IN(R)Video(R-ch) Signal Input V-OUTVideo Signal Output VccVcc VCR-LED“VCR” LED Signal Output VDD Power Supply VEE Pull Down Level VIDEO-C Component Video (Chrominance) Signal VIDEO-Cb/PbComponent Video (C

42、b/Pb) Signal VIDEO-Cr/PrComponent Video (Cr/Pr) Signal Signal NameFunction 1-7-3H9923SNA VIDEO-Y(I) Component Video (Luminance) Signal (Interlace) VIDEO-Y(I/P) Component Video (Luminance) Signal (Interlace/Progressive) VSS GND XCinSub Clock XCOUTSub Clock XinMain Clock Input XoutMain Clock Input Sig

43、nal NameFunction 1-8-1H9923DC CABINET DISASSEMBLY INSTRUCTIONS 1. Disassembly Flowchart This flowchart indicates the disassembly steps to gain access to item(s) to be serviced. When reassembling, follow the steps in reverse order. Bend, route, and dress the cables as they were originally. 2. Disasse

44、mbly Method Note: (1): Identification (location) No. of parts in the figures (2): Name of the part (3): Figure Number for reference (4): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered. P=Spring, L=Locking Tab, S=Screw, CN=Connector *=Unhook,

45、Unlock, Release, Unplug, or Desolder e.g. 2(S-2) = two Screws (S-2), 2(L-2) = two Locking Tabs (L-2) (5): Refer to “Reference Notes.” ID/ LOC. No. PART REMOVAL Fig. No. REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER Note 1Top CaseD17(S-1)- 2 Front Assembly D2*3(L-1), *3(L-2) 1 1-1 1-2 3Top BracketD

46、23(S-2)- 4 DVD Mechanism Assembly D3 4(S-3), *CN401, *CN601 - 5 Partition Plate D32(S-4)- 6 Loader Holder D32(S-5)- 1 Top Case 2 Front Assembly 3 Top Bracket 4 DVD Mechanism Assembly7 DVD Main CBA Unit 15 Jack Board 5 Partition Plate 6 Loader Holder 8 VCR Chassis Unit 9 Deck Assembly 10 DVD Open/Clo

47、se CBA 11 Power SW CBA 12 Main CBA 14 Earth Plate 13 Jack Cover 7 DVD Main CBA Unit D4 2(S-6), *CN201, *CN301 2 2-1 2-2 3 8 VCR Chassis Unit D55(S-7), 3(S-8), 2(S-9)- 9 Deck Assembly D6 Desolder, (S-10), (S-11) 4,5 10 DVD Open/ Close CBA D6Desolder- 11 Power SW CBA D6Desolder- 12Main CBAD6- 13Jack C

48、overD6(S-12)- 14Earth PlateD6- 15Jack BoardD6(S-13)- (1) (2) (3) (4) (5) ID/ LOC. No. PART REMOVAL Fig. No. REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER Note 1-8-2H9923DC Reference Notes CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. Be careful not to break them. 1-1. Release three Locking

49、Tabs (L-1). 1-2. Release three Locking Tabs (L-2), then remove the Front Assembly. CAUTION 2: Electrostatic breakdown of the laser diode in the optical system block may occur as a potential difference caused by electrostatic charge accumulated on cloth, human body etc, during unpacking or repair work. To avoid damage of pickup follow next procedures. 2-1. Disconnect Connector (CN301). Remove two Screws (S-6) and lift the DVD Main CBA U