Hitachi-DVPF35U-cd-sm维修电路原理图.pdf
SERVICE MANUALSERVICE MANUAL Digital Media Division, Yokohama DVD PLAYER PR/PB: chrominance signals), degrading of image will be reduced. DDolby AC3Audio coding format developed by Dolby Laboratories in U.S, also simply referred to as AC3 format: Supports 5-channel full-range sound and one channel for sub-woofer sound playback. D terminalThis terminal, specified by EIAJ (currently JEITA), can automatically switch digital hi-vision programs of BS digital broadcast, and digital standard broadcast of current image quality. A tuner and TV can easily be connected to the D terminal. There are 5 types of D terminal, depending on the different format of video signal passing thorough the D terminal. DTSDigital Theater System: Sound system as for movie theaters developed by US Digital Theater Systems, Inc. The number of channels provided by DTS is the same for Dolby AC3. DVDDigital Versatile Disc. A huge amount of digital data for video (movie) and audio can be recorded on this disc, whose size is the same as CD. DVD-AudioOne type of DVD standard disc, on which high-quality audio can be recorded DVD-ROne type of DVD standard disc, to which writing once is possible (recordable type) DVD-RAMOne type of DVD standard disc, to which writing up to 100,000 times is possible DVD-ROMOne type of DVD standard disc, to which data for computer can be recorded DVD-RWOne type of DVD standard disc, to which writing up to 1000 times is possible DVD-VideoOne type of DVD standard disc, on which high-quality video and audio can be recorded DVD Video FormatVideo recording/playback standard that applies to DVD-Video, DVD-R and DVD-RW DVD Video Recording Format Video recording/playback standard that applies to DVD-RAM and DVD-RW: This allows versatile editing functions, differing from the DVD Video Format. DVD ForumInternational organization that formulates the technical standards of DVD EEIAJElectronic Industries Association of Japan: An organization of manufacturers of consumer electronic devices, industrial electronic devices and electronic components, established in April 1948. EIAJ merged with JEIDA (Japan Electronic Industry Development Association) in November 2000 to become JEITA (Japan Electronics and Information Technology Industries Association). JJPEGJoint Photographic Expert Group: International standard format for compressing still images. LLinear PCMLinear Pulse Code Modulation: LPCM is a format that digitizes analog audio signal during recording and converts it back to analog signal during playback. MMPEGMoving Picture Experts Group: Standard related to compression of digital video and audio. MPEG2 is a higher standard of MPEG and is applied to video (movie) requiring higher quality. MPEG Audio Layer 2One of three audio compression standards (layers 1-3) defined by MPEG MP3MPEG1 Audio Layer-3: Audio data digital compression technology. PProgressive playback function This function converts interlaced images to non-interlaced images and displays them. It can play back 24-frame/second images included in DVD movie software, etc. SSDMISecure Digital Music Initiative: This conference was established by hardware makers, the Recording Industry Association of America (RIAA) and music industry companies, to protect copyrights of musical compositions. VVirtual surroundThis technology localizes sound at any position using only two front speakers, by subjecting the L and R signals to matrix operation. It uses the four transfer functions from L/R speakers located at specified positions to both ears of listener located in a specified position, taking into account the shape of head and the effect of earlobes, and the two transfer functions from any position to both ears. 2-6 2-5 FUNCTION INDICATOR SYMBOLS Note: The following symbols will appear on the indicator panel to indicate the current mode or operation of the VCR. On-screen modes will also be momentarily displayed on the tv screen when you press the operation buttons. TV screen Note: OSD for mechanical error will be displayed for 5 sec. after the mechanical error occurs. When reel and capstan mechanism is not functioning correctly When tape loading mechanism is not functioning cor- rectly When cassette loading mechanism is not functioning correctly When the drum is not working properly Defective CauseIndication When reel and capstan mechanism is not functioning correctly “EJECT A R” is displayed on a TV screen. (Refer to Fig. 1.) When tape loading mechanism is not func- tioning correctly “EJECT A T” is displayed on a TV screen. (Refer to Fig. 2.) When cassette loading mechanism is not functioning correctly “EJECT A C” is displayed on a TV screen. (Refer to Fig. 3.) When the drum is not working properly “EJECT A D” is displayed on a TV screen. (Refer to Fig. 4.) EJECT A R Fig. 1 EJECT A T Fig. 2 EJECT A C Fig. 3 EJECT A D Fig. 4 2-7 2-6 OPERATING CONTROLS AND FUNCTIONS No disc inserted / cannot read disc Opening the tray Closing the tray Loading the disc When a disc or tape is being played back DVD POWER/STANDBY LINE2 VIDEO INL (mono)AUDIO IN R REWF.FWDSTOP/EJECTPLAYREC/OTR REC TIMER P R O G R E S S I V E S C A N DIGITAL AUTO TRACKING DVD/VCR Combo DV-PF35U STOPPLAY OPEN/CLOSE CHANNEL VCR OUTPUT DVD MP3 PLAYBACK DVD / DVD-R / CD / CD-R / CD-RW COMPATIBLE Lights up when the inserted disc is being played back. Displays a type of the disc which is inserted on the tray. DVD: DVD disc CD: Audio CD, MP3 Lights up when the inserted disc comes to a pause. Lights up when the A-B repeat function is on. Lights up when the repeat function is on. Lights up when playing back in slow mode. (DVD) Displays how long the current title or track has been played back. When a chapter or track is switched, the number of a new title, chapter or track is displayed. Lights up when the ALL repeat function is on. GROUPP.SCAN DVD CD Lights up when the progressive scan system is activated. Lights up when the inserted cassette is being played back. Lights up when the playback is in still or slow mode. Lights up during playback when the repeat function is on. Works as a tape counter(hour,minute,second). Also displays a channel number, tape speed, remaining time for OTR or current time. VCRREC PM Lights up when the VCR/DVD is in VCR position. This light does not appear when the VCR/DVD is in TV position. Lights up when current time is P.M. *Lights up when a tape is in the VCR/DVD. *Lights up when the timer recording or an OTR recording has been set. *Lights up during a recording. Flashes when a recording is paused. DVD output mode VCR output mode Timer indicator lights up when a timer recording is set. *, and mark will disappear when you set VCR/DVD in DVD mode. However, the function indicated by each mark is still working. 2-8 To select a chapter or title directly To select a track directly To select camera an angle on a disc (DVD-Video) To select an audio language on a disc To select STEREO, L-ch or R-ch (CD) To repeat between your chosen point A and B To repeat between your chosen point A and B (CD) To select a channel The +10 button has no effect in VCR mode. To clear the markers To clear the numbers entered incorrectly To cancel the point for A-B repeat. To clear the markers (CD) To remove status number in program input To clear the numbers entered incorrectly To cancel the point for A-B repeat. (CD) To exit the VCR Menu To reset the tape counter To search forward/backward through a disc To begin slow forward/reverse playback during the pause mode To search forward/backward through a disc To forward/backward a tape To move the cursor and determine its position To move the cursor and determine its position To select an item on the VCR Menu To advance to the next VCR Menu To go back one step during clock and timer setting VCR mode DVD mode To change channels To adjust tracking manually during playback Button (Alphabetical order) Disc/Tape To display the first scene of each chapter of the title To display the current disc mode To display the current disc mode To display the current time, tape counter, and channel To set x1.3 and x0.8 Rapid Play with Voice off/x1.3/x0.8 To set black level on/off To arrange the playback order or play back randomly To call up the file list (MP3)To call up the Menu on a discTo call up the VCR Menu To eject the Video tape from the cassette compartment To activate the remote control in DVD mode To select the DVD output mode To activate the remote control in DVD mode To select the DVD output mode To open or close the disc tray To open or close the disc tray To turn on or off the unitTo turn on or off the unitTo turn on or off the unit To select a subtitle language on a disc To put the VCR into standby mode for a timer recording To play back a chapter or title repeatedly To play back a track or disc repeatedly (CD) To play a track, group or disc repeatedly (MP3) To magnify the part of picture (x2/x4) To call up the Top Menu on a disc. (DVD-Video) To return to the previous operation on the DVD setup menu To return to the previous operation on the DVD setup menu To search chapter / title / time / marker To rapidly return to a location of disc To search track / time (CD) / marker (CD) To rapidly return to a location of disc To select the recording speed To advance playback frame by frame To advance playback frame by frame To pause disc playback To pause disc playback To pause tape playback or recording To stop playback To stop playback To stop playback or recording To skip chapters / titles To skip tracks To return to the top file of the highest hierarchy in the program and file list (MP3) To begin disc playback To begin disc playback To begin tape playback To call up the DVD setup menu To call up the index or time search menu To call up the DVD setup menu To view the tape in slow motion To select the VCR output mode To activate the remote control in VCR mode To start a recording or One Touch Recording To set virtual surround on/off To set virtual surround on/off STOP PLAY 123 456 789 0+10 SURROUND SPEED AUDIO DISPLAY RETURN TOP MENU MENU SETUP CLEAR C.RESET MODE ZOOM SEARCH MODE A-B REPEAT ANGLE REPEAT SUBTITLE TIMER DVD VCR REC OTR SLOW DISC NAVIGATION SKIP CH SKIP CH OPEN CLOSE EJECT PAUSE STEP ENTER To select VCR position or TV position VCR TV STOP PLAY 123 456 789 0+10 SURROUND SPEEDAUDIO DISC NAVIGATION DISPLAY SKIP CH SKIP CH SLOW VCR TV OPEN CLOSE EJECT PAUSE STEP REC OTR ENTER RETURNTOP MENU MENU SETUP CLEAR C.RESET MODEZOOMSEARCH MODE A-B REPEATANGLE REPEAT SUBTITLE TIMER DVDVCR DV-RMPF35U 2 1 3 Installing the Batteries for the Remote Control Install two AA batteries (supplied) matching the polarity indicated inside battery compartment of the remote control. Remote Control Keep in mind the following when using the remote control: Make sure that there is no obstacle between the remote control and the remote sensor on the unit. The maximum operable range as follows; Beeline: approximately 23 feet (7m) Either side of center: approximately 16 feet (5m) within 30 degrees Above:approximately 16 feet (5m) within 15 degrees Below:approximately 10 feet (3m) within 30 degrees POWER/STANDBY LINE2 VIDEO INL (mono)AUDIO IN R REWF.FWDSTOP/EJECTPLAYREC/OTR REC TIMER P R O G R E S S I V E S C A N DIGITAL AUTO TRACKING DVD/VCR Combo DV-PF35U STOPPLAY OPEN/CLOSE CHANNEL VCR OUTPUT DVD MP3 PLAYBACK DVD / DVD-R / CD / CD-R / CD-RW COMPATIBLE 123 456 789 0+10 SURROUND SPEEDAUDIO DISPLAY SKIP CH SKIP CH SLOW VCR TV OPEN CLOSE EJECT 2-9 DIGITAL AUDIO OUT COAXIAL AUDIO OUT DVDVCRDVD/VCR S-VIDEO OUT AUDIO OUT COMPONENT VIDEO OUT AUDIO IN VIDEO OUT LY CB/ PB CR/ PR R L R L R ANT-IN ANT-OUT VIDEO IN 0VM204468 AUDIO IN jacks Connect Audio cables coming from the audio out jacks of a camcorder, another VCR, or an audio source here.(VCR only) DVD ANALOG AUDIO OUT jacks Connect the supplied Audio cables here through the Audio In jacks of a TV or other audio equipment. (DVD only) DVD/VCR AUDIO OUT jacks Connect the supplied Audio cable (red/white) here through the audio In jacks of a TV or other audio equipment. ANT IN jack Connect your antenna or cable box here. ANT OUT jack Connect the supplied Round Coaxial cable to the antenna input jack on your TV. DVD/VCR VIDEO OUT jack Connect the supplied Video cable (yellow) here through the TVs video in jack. COAXIAL jack Connect an optional coax- ial digital Audio cable here through the coaxial digital audio in jack of a decoder or audio receiver. (DVD only) VIDEO IN jack Connect a cable coming from the video out jack of a camcorder, another VCR, or an audio-visual source (Laser Disc play- er, Video Disc player, etc.) here.(VCR only) S-VIDEO OUT jack Connect an optional S-Video cable here through the S-Video in jack of a TV. (DVD only) COMPONENT VIDEO OUT jacks Connect optional component Video cable here through the component video in jacks of a TV. (DVD only) LINE2 VIDEO INL (mono)AUDIO IN R REWF.FWDSTOP/E Back of VCR/DVD Front of VCR/DVD 3-1 3-1 TROUBLESHOOTING Troubleshooting is how to service for the specifying malfunction or poor parts. Detect malfunction or poor parts and service as the following charts. 3-1-1 Power Supply Section FLOW CHART NO.1 The power cannot be turned on. Is the fuse normal? Is normal state restored when once unplugged power cord is plugged again after several seconds. Is the AL+5V line voltage normal? Check each rectifying circuit of secondary circuit and service it if defective. See FLOW CHART No.2 Check for lead or shor-circuiting of primary circuit component and service it if defective. (Q1001,Q1003,T001,D1001,D1002,D1003, D1004,D1011,C1003,C1005) Yes Yes Yes No No No FLOW CHART NO.2 The fuse blows out. After servicing, replace the fuse. Check the presence that the primary component is leaking or shorted and service it if defective. Check the presence that the rectifying diode or circuit is shorted in each rectifying circuit of secondary side and service it if defective. FLOW CHART NO.3 When the output voltage fluctuates. No Yes Does the secondary side photo coupler circuit operate normally? Check the circuit and service it if defective. (IC1001, D1012, D1024) Check the circuit and service it if defective. (IC1001, Q031, D031) FLOW CHART NO.4 When buzz sound can be heard in the vicinity of power circuit. Check if there is short circuit on the rectifying diode and the circuit in each rectifying circuit of secondary side and service it if defective. (D013,D015,D016,D1008,D1010,D1016,D1020,IC1002,IC1004,Q055,Q056,Q063,Q1004,Q1006,Q1011) No Yes FLOW CHART NO.5 -FL is not outputted. Is the supply voltage of -30V fed to the anode of D1010? Check D1010 and their periphery, and service it if defective. Check for load circuit short-circuiting or leak, and service it if defective. MAINTENANCE AND INSPECTION3 3-2 DVD-P-ON+12V is not outputted. FLOW CHART NO.11 Is 12V voltage supplied to the emitter of Q1006? Replace Q1006. No No Yes Yes Is the L pulse (approximately 0V) outputted to the coll
