TelefunkenTDV3000A维修电路图、原理图.pdf

SERVICE MANUAL DVD PLAYER In no case should a unit fail to meet limit specs. DescriptionUnitMinimumNominalMaximumRemark 1. Video 1-1. Video Output (PB)Vp-p0.81.01.2SP Mode 1-2. Video Output (R/P)Vp-p0.81.01.2 1-3. Video S/N Y (R/P)dB4045 SP Mode, W/O Burst 1-4. Video Color S/N AM (R/P)dB3741SP Mode 1-5. Video Color S/N PM (R/P)dB3036SP Mode 1-6. Resolution (PB)Line230245SP Mode 2. Servo 2-1. Jitter Lowsec0.070.12SP Mode 2-2. Wow 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 twee- zers. (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 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) Top View OutIn Bottom View Input 5 10 Pin 1 Pin 1 FFC Cable Connector CBA * Be careful to avoid a short circuit. Fig. S-1-1 1-4-2DVD_NOTE 3. The flat pack-IC on the CBA is affixed with glue, so be careful 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 easily. (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 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 melted). (Fig. S-1-6) (4) Release the flat pack-IC from the CBA using twee- zers. (Fig. S-1-6) With Iron Wire: (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 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 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 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 1-4-3DVD_NOTE (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 melted). (Fig. S-1-6) (5)Release the flat pack-IC from the CBA using twee- zers. (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 is applied. 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 “I” mark on the flat pack-IC indicates pin 1. (See Fig. S-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. To Solid Mounting Point Soldering Iron Iron Wire or Hot Air Blower Fig. S-1-5 Fine Tip Soldering Iron CBA Flat Pack-IC Tweezers Fig. S-1-6 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 1-4-4DVD_NOTE Instructions for Handling Semi-conductors Electrostatic breakdown of the semi-conductors may occur due to a potential difference caused by electro- static charge during unpacking or repair work. 1. Ground for Human Body Be sure to wear a grounding band (1M) that is prop- erly grounded to remove any static electricity that may be charged on the body. 2. Ground for Workbench (1)Be sure to place a conductive sheet or copper plate with proper grounding (1M) 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 ground- ing band, be careful to avoid contacting semi-con- ductors with your clothing. CBA CBA Grounding Band Conductive Sheet or Copper Plate 1M 1M 1-5-1H9700PFS 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. Carefully 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 GND. 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 the end of the tape to avoid tape damage. Q504 Q503 TP501 S-INH Fig. 1 1-6-1H9700DC 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. Disassembly 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, 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 CaseD18(S-1)- 2 Front Assembly D2*3(L-1), *3(L-2) 1 1-1 1-2 3 Top Bracket D23(S-2)- 4 DVD Mecha Assembly D3 4(S-3), *CN401, *CN601 - 5 Partition Plate D3(S-4)- 6 Power Suppy CBA D32(S-5), CN501- 7 Loader Holder D32(S-6)- 1 Top Case 2 Front Assembly 3 Top Bracket 4 DVD Mecha Assembly8 DVD Main CBA Unit 5 Partition Plate 7 Loader Holder 6 Power Supply CBA 9 VCR Chassis Unit 10 Deck Assembly 11 DVD Open/Close CBA 12 Main CBA 13 Jack-A CBA 8 DVD Main CBA Unit D4 2(S-7), *CN201, *CN301 2 2-1 2-2 3 9 VCR Chassis Unit D5 5(S-8), 2(S-9), (S-10), (L-3) - 10 Deck Assembly D6 Desolder, 2(S-11), (S-12) 4,5 11 DVD Open/ Close CBA D6Desolder- 12Main CBAD6- 13 Jack-A CBA D6Desolder, 6(S-13)- (1) (2) (3) (4) (5) ID/ LOC. No. PART REMOVAL Fig. No. REMOVE/*UNHOOK/ UNLOCK/RELEASE/ UNPLUG/DESOLDER Note 1-6-2H9700DC Reference Notes CAUTION 1: Locking Tabs (L-1) and (L-2) are fragile. Be careful not to break them. 1-1. Release three Locking 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 a Screw (S-7) and lift the DVD Main CBA Unit. (Fig. D4) 2-2. Short the three short lands of FPC cable with sol- der before removing the FFC cable (CN201) from it. If you disconnect the FFC cable (CN201), the laser diode of pickup will be destroyed. (Fig. D4) CAUTION 3: When reassembling, confirm the FFC cable (CN201) is connected completely. Then remove the solder from the three short lands of FPC cable. (Fig. D4) 4. When reassembling, solder wire jumpers as shown in Fig. D6. 5. Before installing the Deck Assembly, be sure to place the pin of LD-SW on Main CBA as shown in Fig. D6. Then, install the Deck Assembly while aligning the hole of Cam Gear with the pin of LD- SW, the shaft of Cam Gear with the hole of LD-SW as shown in Fig. D6. Fig. D1 (S-1) (S-1) (S-1) (S-1) 1 Top Case 2 Front Assembly (S-2) (S-2) 3 Top Blacket Fig. D2 (L-1) (L-1) (L-2) 1-6-3H9700DC (S-3) (S-5) (S-4) (S-6) CN501 CN401 CN601 (S-3) (S-3) 5 Partition Plate 6 Power Supply CBA 7 Loader Holder 4 DVD Mecha Assembly Fig. D3 CN201 CN301 (S-7) 8 DVD Main CBA Unit DVD Mecha A Fig. D4 Short the three short lands by soldering. (Either of two places.) Connector View for A (S-7) (S-8) (S-9) (S-9) (S-8) (S-8) (L-3) 9 VCR Chassis Unit Fig. D5 (S-10) 1-6-4H9700DC (S-11) Lead with blue stripe Desolder from bottom (S-12) (S-13) (S-13) (S-11) 12 Main CBA 13 Jack-A CBA 10 Deck Assembly 11 DVD Open/Close CBA FE Head Cylinder Assembly ACE Head Assembly Fig. D6 Desolder Lead with blue stripe From FE Head BOTTOM VIEW Lead connections of Deck Assembly and Main CBA Desolder From Capstan Motor Assembly Printing side Desolder From Cylinder Assembly From ACE Head Assembly Lead with blue stripe Lead with blue stripe Desolder Lead with red stripe 12 Main CBA SW507 LD-SW LD-SW Pin Hole Hole Shaft Cam Gear 12 Main CBA 10 Deck Assembly Pin 1-6-5H9700DC View for A Rotate this roulette in the direction of the arrow ADVD Mecha HOW TO EJECT MANUALLY 1. Remove the Top Case. 2. Rotate the roulette in the direction of the arrow as shown below. 3. Pull the tray slowly with a hand. 1-7-1H9700EA ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: CBA is an abbreviation for Circuit Board Assembly. NOTE: 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after all repairs and replacements have been com- pleted. Also, do not attempt these adjustments unless the proper equipment is available. 2.To perform these alignment / confirmation proce- dures, make sure that the tracking control is set in the center position: Press either CHANNEL L5? or CHANNEL K button on the front panel first, then the PLAY button on the front panel. Test Equipment Required 1.Oscilloscope: Dual-trace with 10:1 probe, V-Range: 0.00150V/Div., F-Range: DCAC-20MHz 2.Alignment Tape (FL6A) Head Switching Position Adjustment Purpose: To determine the Head Switching position during playback. Symptom of Misadjustment: May cause Head Switching noise or vertical jitter in the picture. Reference Notes: Playback the Alignment tape and adjust VR501 so that the V-sync front edge of the CH1 video output wave- form is at the 6.5H1H (416s64s) delayed position from the rising edge of the CH2 head switching pulse waveform. Test pointAdj.PointModeInput TP751(V-OUT) TP504(RF-SW) GND VR501 (Switching Point) (MAIN CBA) PLAY (SP) - Tape Measurement Equipment Spec. FL6AOscilloscope 6.5H1H (416s64s) Connections of Measurement Equipment Oscilloscope Main CBA TP751 CH1 CH2 Trig. (+) GND TP504 Figure 1 EXT. Syncronize Trigger Point 1.0H CH1 CH2 Switching Pulse V-Sync 0.5H 6.5H1H (416s64s) 1-8-1H9700TEST FIRMWARE RENEWAL MODE 1. Turn the power on and remove the disc on the tray. 2. To put the DVD player into version up mode, press 9, 8, 7, 6, and SEARCH MODE buttons on the remote control unit in that order. The tray will open automatically. Fig. a appears on the screen and Fig. b appears on the VFD. The DVD player can also enter the version up mode with the tray open. In this case, Fig. a will be shown on the screen while the tray is open. 3. Load the disc for version up. 4. The DVD player enters the F/W version up mode automatically. Fig. c appears on the screen and Fig. d appears on the VFD. If you enter the F/W for different models, “Disc Error” will appear on the screen, then the tray will open automatically. The appearance shown in (*1) of Fig. c is described as follows: 5. After programming is finished, the tray opens auto- matically. Fig. e appears on the screen and the checksum in (*2) of Fig. e appears on the VFD. (Fig. f) At this time, no buttons are available. 6. Remove the disc on the tray. 7. Unplug the AC cord from the AC outlet. Then plug it again. 8. Turn the power on by pressing the FUNCTION button and the tray will close. 9. Press 1, 2, 3, 4, and DISPLAY buttons on the remote control unit in that order. Fig. g appears on the screen. 10.Press CLEAR button on the remote control unit. Fig. h appears on the screen. When “OK” appears on the screen, the factory default will be set. Then the firmware renewal mode is complete. 11.To exit this mode, press FUNCTION button. F/W Version Up ModeModel No : * VERSION : *.* Please insert a DISC for F/W Version Up. EXIT: POWER * differ depending on the models. Fig. a Version Up Mode Screen Fig. b VFD in Version Up Mode VERSION : D5*_*.ab5 Reading.(*1) F/W Version Up ModeModel No : * VERSION : *.* Fig. c Programming Mode Screen * differ depending on the models. Fig. d VFD in Programming Mode (Example) AppearanceNo.State Reading.Sending files into the memory Erasing.Erasing previous version data Programming. 1 2 3Writing new version data VERSION : D5*_*.ab5 Completed SUM : 7ABC (*2) F/W Version Up ModeModel No : * VERSION : *.* * differ depending on the models. Fig. e Completed Program Mode Screen Fig. f VFD upon Finishing the Programming Mode (Example) MODEL : * Version : *.* Region : * EXIT: POWEREEPROM CLEAR : CLEAR Fig. g * differ depending on the models. MODEL : * Version : *.* Region : * EEPROM CLEAR : OK EXIT: POWEREEPROM CLEAR : CLEAR * differ depending on the models. Fig. h 1-9-1 Servo/System Control Block Diagram H97L5BLS BLOCK DIAGRAMS MLOADING MOTOR CAPSTAN MOTOR CONTROL HEAD AC HEAD ASSEMBLY MAIN CBA KEY- 1 ST-S T-REEL REMOTE-VIDEO CTL(+) RESET REC-SAF-SW PG-DELAY CTL(-) D-V-SYNC D-REC-H RF-SW H-A-SW C-ROTA END-S 14 94 95 10 4 80 34 2 13 15 18 33 16 31 7 (DECK ASSEMBLY) T-REEL Q515 RESET Q506 S-REEL79 SW-POINT AL+5V VR501 TIMER+5VS-REEL PS502 TP502 KEY- 28 IIC-BUS SDA IIC-BUS SDA IIC-BUS SCL A-MUTE-H IIC-BUS SDA IIC-BUS SCL Hi-Fi-H-SW A-MODE OUTPUT SELECT A-MUTE-H Hi-Fi-H-SW A-MODE H-A-COMP 17 V-ENV 6 P-ON-H C-POW -SW P-ON-H C-POW-SW P-DOWN-L 67 66 86P-DOWN-L OUTPUT-SELECT SW506 TO VIDEO BLOCK DIAGRAM TO Hi-Fi AUDIO BLOCK DIAGRAM TO AUDIO BLOCK DIAGRAM SDA SCL IC502 (MEMORY) 72 32 19 83 IIC-BUS SCL D-V-SYNC D-REC-H RF-SW H-A-SW C-ROTA IIC-BUS SDA H-A-COMP V-ENV DVD-POWER 58C-SYNC C-SYNC OUTPUT-SELECT IIC-BUS SCL71 LD-SW REMOTE-VIDEO 9 AL+5V AL+5V SW507 LD-SW AL+5V D555 S