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Hitachi DV-PF73U Service Manual

Dvd player & video cassette recorder.
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TK
No. 9302E
DV-PF73U
DV-PF73U(C)
SERVICE MANUAL
DV-PF33U
VCR Mechanism Error Codes
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER & VIDEO CASSETTE RECORDER
February
2003
Digital Media Division, Tokai

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   Summary of Contents for Hitachi DV-PF73U

  • Page 1

    No. 9302E DV-PF73U DV-PF73U(C) SERVICE MANUAL DV-PF33U VCR Mechanism Error Codes SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT DVD PLAYER & VIDEO CASSETTE RECORDER February 2003 Digital Media Division, Tokai...

  • Page 2: Table Of Contents

    CONTENTS 1 CAUTIONS FOR SAFETY IN PERFORMING 6 EXPLODEDS VIEWS AND PARTS LIST ..6-1 REPAIR ....... .1-1 6-1 EXPLODED VIEWS .

  • Page 3: Cautions For Safety In Performing

    CAUTIONS FOR SAFETY IN PERFORMING REPAIR 1-1 LASER BEAM SAFETY PRECAUTIONS This DVD player uses a pickup that emits a laser beam. Do not look directly at the laser beam coming from the pickup or allow it to strike against your skin.

  • Page 4: Important Safety Precautions

    1-2 IMPORTANT SAFETY PRECAUTIONS 1-2-1 Product Safety Notice I. Also check areas surrounding repaired locations. J. Be careful that foreign objects (screws, solder Some electrical and mechanical parts have special droplets, etc.) do not remain inside the set. safety-related characteristics which are often not evi- K.

  • Page 5: Safety Check After Servicing

    1-2-3 Safety Check after Servicing Examine the area surrounding the repaired location for damage or deterioration. Observe that screws, parts, Chassis or Secondary Conductor and wires have been returned to their original posi- tions. Afterwards, do the following tests and confirm the specified values to verify compliance with safety Primary Circuit Terminals standards.

  • Page 6: Standard Notes For Servicing

    1-3 STANDARD NOTES FOR SERVICING 1-3-1 Circuit Board Indications 1-3-3 How to Remove / Install Flat Pack-IC a. The output pin of the 3 pin Regulator ICs is indi- cated as shown. 1. Removal With Hot-Air Flat Pack-IC Desoldering Machine:. Top View Bottom View (1) Prepare the hot-air flat pack-IC desoldering...

  • Page 7

    With Soldering Iron: (4) Bottom of the flat pack-IC is fixed with glue to the CBA; when removing entire flat pack-IC, first apply (1) Using desoldering braid, remove the solder from all soldering iron to center of the flat pack-IC and heat pins of the flat pack-IC.

  • Page 8

    2. Installation 1-3-4 Instructions for Handling Semi-conductors (1) Using desoldering braid, remove the solder from the foil of each pin of the flat pack-IC on the CBA Electrostatic breakdown of the semi-conductors may so you can install a replacement flat pack-IC more occur due to a potential difference caused by electro- easily.

  • Page 9: General Information

    GENERAL INFORMATION 2-1 SPECIFICATIONS Product type: DVD/VCR Combo (DVD player with Video Cassette Recorder) Discs: DVD video Audio CD Video Cassette tape Converter output: VHF Channel 3 or 4. Power source: 120 V AC +/- 10%, 60 Hz +/- 0.5% Power consumption: 24 W (standby: 7.0 W) Operating temperature:...

  • Page 10: Comparison Of Models

    DV-PF73U/PF73U(C)/PF33U DV-PF2U Dimensional 435(W) x 99(H) x 218(D)mm 435(W) x 99(H) x 266(D)mm Weight 3.7kg 4.0kg ← Tray Panel Clear Silver/Silver (DV-PF73U/PF73U(C)) Color Front/BUtton Silver/Silver Black/Silver (DV-PF33U) ← Hot Stamp DV-RMPF73U (DV-PF73U/PF73U(C)) Remote Controller Model Name DV-RMPF2 DV-RMPF33U (DV-PF33U) ←...

  • Page 11: Dvd Section

    2x Play with Audio Step Forward / Reverse O / O O / --- ← Still Picture Select (Frame/Field) Auto Only O (DV-PF73U/PF73U(C)) Disc Navigation --- (DV-PF33U) ← DVD Zoom x2 / x4 O / O Program and Random Play of DVD / O / O ←...

  • Page 12: Operating Controls And Functions

    2-3 OPERATING CONTROLS AND FUNCTIONS [ DV-PF73U/PF73U(C) ] FRONT PANEL OPEN/CLOSE POWER/STANDBY CHANNEL LINE 2 STOP/EJECT PLAY STOP PLAY DVD OUTPUT VCR TIMER REC/IRT F.FWD VIDEO IN L (mono) AUDIO IN R 18 16 12. REW Button (VCR) REMOTE CONTROL Press to rewind the tape, or to view the picture rapidly in reverse during the playback mode (Rewind Search).

  • Page 13

    28. CLEAR/C.RESET Button Press to stop the disc motion. ● ● DVD mode VCR mode Press to stop the tape motion. Press to reset the setting. ● 40. h Button VCR mode ● DVD mode Press to reset the counter. Press to exit from the MENU Press to view the DVD picture in fast reverse motion or screen.

  • Page 14

    57. Number Buttons EJECT Button ● DVD mode Press to eject the video cassette from the VCR. Press to directly select a Track (Audio CD) for playback. 59. SEARCH MODE Button ● ● VCR mode DVD mode Press to select TV channels on the VCR. Press to access or remove the Search display, To select channels, enter channel numbers as a two-digit which allows you to go directly to a specific...

  • Page 15

    REAR VIEW DVD/VCR S-VIDEO COMPONENT AUDIO DIGITAL AUDIO OUT AUDIO IN VIDEO OUT AUDIO OUT ANT-IN COAXIAL ANT-OUT VIDEO OUT VIDEO IN PROGRESSIVE 11 10 1. ANT-IN (Antenna In) Jack In jacks of a television or other audio equipment (DVD only).

  • Page 16

    [ DV-PF33U ] FRONT PANEL OPEN/CLOSE POWER/STANDBY CHANNEL LINE 2 STOP/EJECT PLAY STOP PLAY DVD OUTPUT VCR TIMER REC/IRT F.FWD VIDEO IN L (mono) AUDIO IN R 18 16 12. REW Button (VCR) REMOTE CONTROL Press to rewind the tape, or to view the picture rapidly in reverse during the playback mode (Rewind Search).

  • Page 17

    25. DISPLAY Button 43. TV CH p/o Buttons ● DVD mode Press to exclusively control the TV channels. Press to access or remove the display screen during DVD VOL p/o Buttons or Audio CD playback. Press to exclusively control the TV volume. ●...

  • Page 18

    ●VCR Position 53. OPEN/CLOSE Button To view playback, to monitor video recordings or to Press to open or close the disc loading tray. EJECT Button watch TV using the VCR tuner. ● TV Position Press to eject the video cassette from the VCR. 54.

  • Page 19

    REAR VIEW DVD/VCR AUDIO OUT AUDIO IN S-VIDEO COMPONENT AUDIO DIGITAL VIDEO OUT AUDIO OUT ANT-IN COAXIAL ANT-OUT VIDEO OUT VIDEO IN PROGRESSIVE 11 10 1. ANT-IN (Antenna In) Jack In jacks of a television or other audio equipment (DVD only).

  • Page 20: Maintenance And Inspection

    MAINTENANCE AND INSPECTION 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. See FLOW CHART No.2 <The fuse blows out.>...

  • Page 21

    FLOW CHART NO.6 P-ON+5V is not outputted. (P-ON+9V is outputted normally.) Check D016, D018, C020, C021, and their Is 5V voltage supplied to the collector of Q056? periphery, and service it if defective. Is the "H" pulse inputted into the base of Q056? Check Q056, R057 and their periphery, and service it if defective.

  • Page 22

    FLOW CHART NO.11 The fluorescent display tube does not light up. Is 3.3V voltage supplied to Pin(6, 24) of IC571? Check the EV+3.3V line and service it if detective. Check the -FL (-28V) line and service it if Is approximately -24V to -28V voltage supplied to detective.

  • Page 23: Dvd Section

    3-1-2 DVD Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of Re-install the key switches (SW2001, SW2002, SW2003) correctly or replace the poor switch. the key switches (SW2001-2003) normal? When pressing each key switches (SW2001, Check the key switches (SW2001, SW2002, SW2003) and their periphery, and service it if SW2002, SW2003), do the voltage of each pin...

  • Page 24

    FLOW CHART NO.5 The [No Disc] indication. (In case of focus error) Replace the DVD Main CBA. No improvement can be found. Original DVD Main CBA is poor. Replace the DVD Mechanism. FLOW CHART NO.6 The [No Disc] indication. (In case focus servo does not function.) Replace the DVD Main CBA.

  • Page 25

    FLOW CHART NO.9 Picture does not appear normally. Set the disc on the disc tray, and playback. Replace the DVD Main CBA or the DVD Are the video signals outputted to each pin of Mecha. CN1601 on the Main CBA? CN1601 7PIN CN1601...

  • Page 26

    FLOW CHART NO.10 Audio is not outputted. Set the disc on the disc tray, and playback. Replace the DVD Main CBA or the DVD Mecha. Are the analog audio signals outputted to each pin of CN1601 on Main CBA? CN1601 13PIN AUDIO-L CN1601 15PIN AUDIO-R Check each line between each pin of CN1601 Are the analog audio signals inputted to each pin...

  • Page 27: Vcr Section

    3-1-3 VCR Section FLOW CHART NO.1 The key operation is not functioning. Are the contact point and the installation state of Re-install some key switches correctly or the key switches normal? replace some key switches. Check the key switches and their periphery, and Is the control voltage normally inputted into service it if detective.

  • Page 28

    FLOW CHART NO.3 Cassette tape can not be loaded. When loading a cassette tape, on Pin(69) of Check the line between the start sensor and IC501, does the "L" pulse switch to the "H" pulse? Pin(69) of IC501, and service it if detective. When loading a cassette tape, is the specified Replace the Capstan Motor Unit.

  • Page 29

    FLOW CHART NO.6 Capstan Motor does not rotate. Is 5V voltage supplied to Pin(2) of CL502? Check the P-ON+5V line and service it if detective. Is over approximately 2.6V voltage supplied to Check the line between Pin(5) of CL502 and Pin(5) of CL502? Pin(28) of IC501, and service it if detective.

  • Page 30

    FLOW CHART NO.10 Video E-E does not appear. 1) In the external input mode Is the Video signal inputted to Pins(38,40,42) of Check the line between the video input IC301? terminal (rear) and Pin(38) of IC301, and service it if detective. Check the line between the video input terminal (front) and Pin(40) of IC301, and service it if detective.

  • Page 31

    FLOW CHART NO.11 Hi-Fi E-E audio does not operate normally. Check the peripheral circuit of the front input terminal and service it if detective. Is each signal supplied to each pin of IC451 as below? L-ch R-ch Check the peripheral circuit of the rear input Front input terminal Pin(9) Pin(71)

  • Page 32

    FLOW CHART NO.12 Hi-Fi audio can not be recorded normally. (E-E mode is normal.) Is the REC FM signal outputted to Pin(26) of IC451? Replace IC451. Service the line between Pin(8) of CL253 and Is the line between Pin(8) of CL253 and Pin(26) of IC451.

  • Page 33

    FLOW CHART NO.15 Hi-Fi audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.) Is the audio signal supplied to Pin(100) of IC301? Is the audio signal outputted to Pin(96) of IC301? Replace Check the line between Pin(96) of IC301 and Pin(4) of IC451, and IC301.

  • Page 34: Firmware Renewal Mode

    3-2 FIRMWARE RENEWAL MODE 3-2-1 How to Update the Firmware Ver- Appearance State sion 1. Turn the power on and remove the disc on the tray. Reading... Sending files into the memory 2. To put the DVD player into version up mode, press Erasing...

  • Page 35: How To Verify The Firmware Version

    model: ****** Ver: **** Region: ** TEST 3: EEPROM CLEAR EEPROM CLEAR: OK RETURN: ----- EXIT: POWER Fig. h 10.To finish this mode, press [POWER] button. 3-2-2 How to Verify the Firmware Ver- sion 1. After making sure that no disc is in unit, turn the power on.

  • Page 36: Standard Maintenance

    3-3 STANDARD MAINTENANCE 3-3-1 Service Schedule of Components h: Hours : Check I: Change Deck Periodic Service Schedule Ref.No. Part Name 1,000 h 2,000 h 3,000 h 4,000 h Cylinder Assembly Loading Motor Assembly Pulley Assembly B587 Tension Lever Assembly AC Head Assembly B573,B574 Reel (SP)(D2), Reel (TU)(D2)

  • Page 37: Cleaning

    3-3-2 Cleaning Cleaning of Audio Control Head Clean the head with a cotton swab. Cleaning of Video Head Procedure Clean the head with a head cleaning stick or chamois 1.Remove the top cabinet. cloth. 2.Dip the cotton swab in 90% Isopropyl alcohol and Procedure clean the audio control head.

  • Page 38: Adjustment

    ADJUSTMENT 4-1 PREPARATION FOR SERVICING 4-1-1 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.

  • Page 39: Fixture And Tape For Adjustment

    4-2 FIXTURE AND TAPE FOR ADJUSTMENT 1. Alignment Tape 2. Guide Roller Adj. Screwdriver No. 7099046 (MH-1) No. 7099028 3. Flat Screwdriver (Purchase Locally) 4-2-1 How To Use The Fixtures And Tape Item No. Name Part No. Adjustment I Head Switching Point Alignment Tape 7099046 I Tape Interchangeability Alignment...

  • Page 40: Electrical Adjustment Instructions

    4-3 ELECTRICAL ADJUSTMENT INSTRUCTIONS General Note: "CBA" is an abbreviation for "Circuit Board Assembly." NOTE: Figure 1 1.Electrical adjustments are required after replacing circuit components and certain mechanical parts. It is important to do these adjustments only after EXT. Syncronize Trigger Point all repairs and replacements have been com- V-Sync pleted.

  • Page 41: Mechanical Alignment Procedures

    4-4 MECHANICAL ALIGNMENT PROCEDURES Explanation of alignment for the tape to correctly run B. Method to place the Cassette Holder in the tape- starts on the next page. Refer to the information below loaded position without a cassette tape on this page if a tape gets stuck, for example, in the 1.

  • Page 42: Tape Interchangeability Alignment

    4-4-2 Tape Interchangeability Alignment Note: To do these alignment procedures, make sure that the Tracking Control Circuit is set to the center position every time a tape is loaded or unloaded. (Refer to page 4-7, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (MH-1) Guide Roller Adj.

  • Page 43: 1-a. Preliminary/final Checking And Alignment Of Tape Path

    1-A. Preliminary/Final Checking and 3. Check to see that the tape runs without creasing at Alignment of Tape Path Take-up Guide Post [4] or without snaking between Guide Roller [3] and AC Head. (Fig. M3 and M5) Purpose: 4. If creasing or snaking is apparent, adjust the Tilt To make sure that the tape path is well stabilized.

  • Page 44: 1-c. Checking/adjustment Of Envelope Waveform

    6. Press CH DOWN button on the unit until the CTL Dropping envelope level at the end of track. waveform has shifted from its original position (not the position achieved in step 5, but the position of CTL waveform in step 4) by approximately -2ms. Make sure that the envelope is simply attenuated (shrinks in height) once CTL waveform passes its original position and is further brought in the minus...

  • Page 45: Disassembly

    DISASSEMBLY 5-1 CABINET DISASSEMBLY INSTRUCTIONS 5-1-1 Disassembly Flowchart REMOVAL This flowchart indicates the disassembly steps to gain REMOVE/*UNHOOK/ LOC. PART Fig. access to item(s) to be serviced. When reassembling, UNLOCK/RELEASE/ Note follow the steps in reverse order. Bend, route, and UNPLUG/DESOLDER dress the cables as they were originally.

  • Page 46

    Reference Notes CAUTION 1: Locking Tabs (L-1) are fragile. Be careful (S-2) not to break them. (S-2) 1-1. Remove Screw (S-3). [3] Top Bracket 1-2. Release seven Locking Tabs (L-1) (to do this, first release five Locking Tabs (A) at the side and top, and then release two Locking Tabs (B) at the (S-2) bottom.)

  • Page 47

    (S-5) CN201 (S-5) (S-9) [5] DVD Main CN301 [9] Rear Panel (S-8) [8] PCB Bracket [7] Power Supply CBA (S-8) DVD Mecha Fig. D6 Short the three short (S-11) (S-10) lands by soldering (S-10) Slide (S-11) (S-10) (S-11) Pickup Unit [10] VCR Chassis Unit View for A View for B...

  • Page 48

    Cylinder Assembly FE Head AC Head [11] Deck Assembly Assembly SW507 LD-SW Desolder [12] Main CBA Lead with [11] Deck Assembly blue stripe Cam Gear Hole [12] Main CBA Shaft Hole LD-SW [12] Main CBA [13] DVD OPEN/ CLOSE CBA (S-12) (S-12) Desolder...

  • Page 49

    (S-13) [15] Deck Pedestal (S-13) (S-14) [16] Side Bracket Fig. D9 To Remove the Disc Manually 1. Remove the Top Cover. 2. Rotate this roulette in the direction of the arrow as shown below. Top Cover DVD Mecha Tray Deck Assembly Rotate this roulette in the direction of the arrow...

  • Page 50: Disassembly/assembly Procedures Of Deck Mechanism

    5-2 DISASSEMBLY/ASSEMBLY PROCEDURES OF DECK MECHANISM Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to CABINET DISASSEMBLY INSTRUCTIONS on page 5-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...

  • Page 51

    REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (TU) (+)Refer to Alignment [32] [33] DM2,DM14 Assembly Sec. Page 5-14 [34] [2],[25] M Brake (TU) Assembly DM1,DM15 *(P-7), Brake Belt [35] [2],[25] M Brake (SP) Assembly DM1,DM15 *(P-8) [36] [35]...

  • Page 52

    Top View [41] [42] [46] [43] [14] [13] [11] [15] [36] [10] [12] [35] [34] [40] [29] [30] [16] [39] [38] Fig. DM1 Bottom View [20] [33] [32] [24] [26] [27] [25] [23] [28] [22] [21] [31] Fig. DM2...

  • Page 53

    (S-1) (S-1) (L-1) (L-3) (L-2) (P-1) Fig. DM5 [46] Fig. DM3 [47] Pin D (L-14) Pin C Pull up Slide Pin A Pin B Slot A (S-2) Slots B Slot A First, while pushing the locking tab as shown at right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.

  • Page 54

    (S-4) (S-5) [14] (S-6) [16] [15] Desolder from bottom (S-3) Lead with White Stripe Belt View for A Fig. DM7 Fig. DM9 Adj. Screw [11] [18] (L-4) (L-5) (P-3) [17] [13] [19] [12] (P-4) [10] (P-2) (S-7) Pin of [12] Pin of [10] Fig.

  • Page 55

    [22] (C-4) (S-8) (C-1) [23] (L-6) [21] (P-5) [20] Cap Belt (P-5) [28] Fig. DM11 When installing [23], install the spring (P-5) to [28] as shown in the left figure, and then install [23] while Pin on pressing the spring (P-5) to bottom the direction of the arrow in of [23]...

  • Page 56

    (P-6) [25] [31] (C-3) Refer to the Alignment Section, Page 5-14. (S-9) [29] [33] [30] (L-11) [32] (L-10) (L-8) (C-2) [27] [28] [24] [26] (L-9) Fig. DM14 [36] Position of Mode Lever when installed Break belt Pin of [35] (P-7) Pin of [31] Pin of [34] [34]...

  • Page 57

    [42] [41] [43] (L-13) Fig. DM16 [44] [45] Slide Fig. DM17 5-13...

  • Page 58: Alignment Procedures Of Mechanism

    5-3 ALIGNMENT PROCEDURES OF MECHANISM The following procedures describe how to align the Alignment 1 individual gears and levers that make up the tape Loading Arm (SP) and (TU) Assembly loading/unloading mechanism. Since information about the state of the mechanism is provided to the Install Loading Arm (SP) and (TU) Assembly so System Control Circuit only through the Mode Switch, that their triangle marks point to each other as...

  • Page 59: Exploded Views And Parts List

    EXPLODED VIEWS AND PARTS LIST 6-1 EXPLODED VIEWS 6-1-1 Cabinet Section 2L041 2L041 2L041 2L071 2L071 W012 2L071 2L041 2L071 L1-A 2L041 L1-B W017 2L071 2B33 DVD Main CBA [CBA REPLACEMENT (ORDER FORMAT)] W011 2L033 2L021 2L013 Sensor CBA DVD MECHANISM [COMPONENT 2L041 [UNIT REPLACEMENT (ORDER FORMAT)]...

  • Page 60: Deck Mechanism View 1 Section

    6-1-2 Deck Mechanism View 1 Section 6-1-3 Deck Mechanism View 2 Section Mark Description Floil G-684G or Multemp MH-D (Blue grease) B587 B521 B487 SLIDUS OIL #150 B416 B591 SANKOUL FG84M (Yellow grease) Mark Description B520 Floil G-684G or Multemp MH-D (Blue grease) B590 B522 B499...

  • Page 61: Deck Mechanism View 3 Section

    6-1-4 Deck Mechanism View 3 Section Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 L1321 B347 L1321 B355 B354 B483 B425 B482 B562 B300 B563 B313 B529 B360 B359 B361 B555 B514 B303...

  • Page 62: Replacement Parts List

    SCREW, S M3X6 B491 TJ16913 CAM GEAR(A) 2L041 TJ15891 SCREW, C M3X5 [DV-PF33U]A B492 TJ16914 MODE GEAR 2L041 TJ16023 SCREW, C M3X5 [DV-PF73U/PF73U(C)] B494 TJ16915 CASSETTE DOOR OPENER 2L051 TJ14057 SCREW, P M3X6 B499 TJ16916 T LEVER HOLDER 2L052 TJ14057...

  • Page 63

    SCREW, SEMS M2.6X5 L1466 TJ14066 SCREW, S M2.6X6 L1467 TJ15958 SCREW, S M2.6X5 L1-A TJ10177 SCREW 3X8 L1-B TJ10177 SCREW 3X8 TS18408 DVD Main CBA ACCESSORIES TS18321 REMOTE CONTROL UNIT [DV-PF33U] TS18351 REMOTE CONTROL UNIT [DV-PF73U/PF73U(C)] 5857952 RF CABLE TE14751 AV CORD...

  • Page 64: Electrical Parts List

    Note: Although some parts in the schematic diagrams have different names from those in 6-2-2 Electrical Parts List the parts list, there is no problem in replacing parts. SYMBOL-NO P-NO DESCRIPTION SYMBOL-NO P-NO DESCRIPTION # IC1001 TE13224 PHOTOCOUPLER LTV-817B-F SEMI-CONDUCTORS IC1002 TC12682 VOLTAGE REGULATOR PQ070XF01SZ...

  • Page 65

    SYMBOL-NO P-NO DESCRIPTION SYMBOL-NO P-NO DESCRIPTION L303 TA12561 INDUCTOR 100UH SW513 TE11957 TACT SWITCH L304 TJ13909 CHOKE COIL 47UH SW514 TE11957 TACT SWITCH L421 TJ13915 INDUCTOR 47UH SW1401 TE11942 SLIDE SWITCH L502 TJ13909 CHOKE COIL 47UH SW2001 TE11957 TACT SWITCH L503 TA12562 INDUCTOR 12UH...

  • Page 66: Schematic And Block Diagrams/cba's

    SCHEMATIC AND BLOCK DIAGRAMS/CBA’S 1 SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS Standard Notes Notes: 1. Do not use the part number shown on these draw- WARNING ings for ordering. The correct part number is shown Many electrical and mechanical parts in this chassis in the parts list, and may be slightly different or have special characteristics.

  • Page 67: Vcr Section

    LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON THE FOLLOWING PAGES: 1. CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE. ATTENTION: POUR UNE PROTECTION CONTINUE LES RISQES D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.

  • Page 68

    2 WIRING DIAGRAMS 2-1 VCR Section FRONT REAR VIDEO AUDIO AUDIO S-VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO VIDEO AUDIO AUDIO DIGITAL (DECK ASSEMBLY) VIDEO-Cr VIDEO-Y VIDEO-Cb IN (R) IN (L) OUT (R) OUT (L) IN (R) IN (L) OUT (R) OUT (L) AUDIO OUT MAIN CBA...

  • Page 69: Dvd Section

    2-2 DVD Section DVD MECHA SENSOR CN401 EV+1.5V TRAY-OUT EV+1.5V FG CBA CN301 EV+1.5V FG-IN EV+3.3V DVD-P-ON+3.3V EV+3.3V TRAY-IN SP(+) SP(-) TRAY-OUT SPINDLE TRAY-IN MOTOR TO MAIN CBA SLED 8 SL(-) CN1001 MOTOR (W011) 9 SL(+) DVD-P-ON+5V EV+9V DRIVE CBA EV+9V FP-STB DVD-P-ON+3.3V...

  • Page 70: Schematic Diagrams

    3 SCHEMATIC DIAGRAMS 3-1 Main 1/8 Schematic Diagram...

  • Page 71: Main 2/8 & Sensor Schematic Diagrams

    3-2 Main 2/8 & Sensor Schematic Diagrams Note: When it is necessary to replace one or more of the following Diodes, all four should be replaced: D564, D565, D566, D567.

  • Page 72: Main 3/8 Schematic Diagram

    3-3 Main 3/8 Schematic Diagram...

  • Page 73: Main 4/8 Schematic Diagram

    3-4 Main 4/8 Schematic Diagram...

  • Page 74: Main 5/8 Schematic Diagram

    3-5 Main 5/8 Schematic Diagram...

  • Page 75: Main 6/8 Schematic Diagram

    3-6 Main 6/8 Schematic Diagram...

  • Page 76: Main 7/8 & Open/close Schematic Diagrams

    3-7 Main 7/8 & DVD OPEN/ CLOSE Schematic Diagrams...

  • Page 77: Main 8/8 Schematic Diagram

    3-8 Main 8/8 Schematic Diagram...

  • Page 78: Power Supply & Junction Schematic Diagrams

    3-9 Power Supply & Junction Schematic Diagrams CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, CAUTION ! NOTE : REPLACE ONLY WITH THE SAME TYPE FUSE. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES If Main Fuse (F1001) is blown, check to see that all components in the power supply...

  • Page 79: Function Schematic Diagram

    3-10 Function Schematic Diagram Note: When it is necessary to replace one or more of the following Diodes, all one should be replaced: D561.

  • Page 80: Dvd Main 1/3 Schematic Diagram

    3-11 DVD Main 1/3 Schematic Diagram...

  • Page 81: Dvd Main 2/3 Schematic Diagram

    3-12 DVD Main 2/3 Schematic Diagram...

  • Page 82

    IC101 VOLTAGE CHART PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP PIN.NO PLAY STOP ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- ----- -----...

  • Page 83: Dvd Main 3/3 Schematic Diagram

    3-13 DVD Main 3/3 Schematic Diagram...

  • Page 84: Waveforms

    4 WAVEFORMS NOTE: Pin 13 of CN1601 (TP751 of Main CBA) Pin 7 of CN1601 WF 1 Input CD: 1kHz PLAY (WF7~WF9) DVD: POWER ON (STOP) MODE (WF4~WF6) V-OUT E-E VIDEO-Y 0.2V 20µsec AUDIO-L 0.5msec 10usec 50mV x 10 (TP751 of Main CBA) UPPER Pin 9 of CN1601 (TP302 of Main CBA)

  • Page 85: Circuit Board Diagrams

    5 CIRCUIT BOARD DIAGRAMS 5-1 Main CBA Top View & Sensor CBA Top View Sensor CBA Top View TP751 V-OUT TP513 TP302 RF-SW TP301 VR501 C-PB SW-P TP502 S-INH...

  • Page 86: Main Cba Bottom View

    5-2 Main CBA Bottom View...

  • Page 87: Function Cba Top/bottom View & Dvd Open/close Cba Top/bottom View

    5-3 Function CBA Top/Bottom View & DVD OPEN/CLOSE CBA Top/Bottom View Function CBA Top View Function CBA Bottom View DVD OPEN/CLOSE CBA Top View DVD OPEN /CLOSE CBA Bottom View...

  • Page 88: Power Supply Cba Top/bottom View

    5-4 Power Supply CBA Top/Bottom View Power Supply CBA Top View Power Supply CBA Bottom View CAUTION BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.

  • Page 89: Block Diagrams

    6 BLOCK DIAGRAMS 6-1 Servo/System Control Block Diagram D561 POWER P-ON+9V MAIN CBA IC501 CL509 CL508 (SERVO/SYSTEM CONTROL) POWER-LED AL+5V KEY- 1 KEY-1 REMOTE-VIDEO REMOTE-VIDEO SWITCH FROM/TO DVD SYSTEM SWITCH CONTROL BLOCK DISPLAY-CLK DISPLAY-CLK (DECK ASSEMBLY) TP502 DIAGRAM DISPLAY-DATA DISPLAY-DATA FUNCTION CBA <DVD SECTION>...

  • Page 90: Video Block Diagram

    6-2 Video Block Diagram REC VIDEO SIGNAL PB VIDEO SIGNAL DVD VIDEO SIGNAL MODE: SP/REC IC751 (OUTPUT SELECT) TP751 V-OUT Q391 MAIN CBA IC501 (OSD) BUFFER JK751 V-OUT SW CTL OSD CHARACTER FROM 9 10 11 Q760 SERVO/SYSTEM OUTPUT-SELECT CONTROL BLOCK DIAGRAM TU701 IC301 (Y/C PROCESS)

  • Page 91: Audio Block Diagram

    Audio Block Diagram PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC DVD AUDIO SIGNAL MAIN CBA TU701 FROM DVD VIDEO/ DVD-A(R) AUDIO BLOCK DVD-A(L) DIAGRAM <DVD SECTION> MOD-A MOD-A IC751 TP753 (OUTPUT SELECT) A-IN (L)-F A-OUT (R) A-IN (R)-F JK751 A-OUT (R) FROM/TO Hi-Fi AUDIO A-OUT (R) A-IN (R)

  • Page 92: Hi-fi Audio Block Diagram

    6-4 Hi-Fi Audio Block Diagram PB-AUDIO SIGNAL REC-AUDIO SIGNAL DVD AUDIO SIGNAL Mode : SP/REC MAIN CBA IC451 (MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP) CONT SERIAL IIC-BUS SDA FROM/TO SERVO/ SYSTEM DATA IIC-BUS SCL CONTROL BLOCK DECODER DEMOD FILTER ST/SAP DEMOD...

  • Page 93: Power Supply Block Diagram

    6-5 Power Supply Block Diagram CAUTION CAUTION ! FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. REPLACE ONLY WITH THE SAME TYPE FUSE. If Main Fuse (F001) is blown, check to see that all components in the power supply NOTE : ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES circuit are not defective before you connect the AC plug to the AC power supply.

  • Page 94: Dvd System Control/servo Block Diagram

    6-6 DVD System Control/Servo Block Diagram SLED SERVO SIGNAL SPINDLE SERVO SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL IC101 SW2001 (MICRO CONTROLLER) OPEN/CLOSE EXT CLOCK CL2003 CL2002 CLK33M OPEN/CLOSE 2 BE CLOCK IC451 OPEN/CLOSE CBA (CLOCK GENERATOR) X451 MULTI X'TAL 36.864MHz IC202 PLL2...

  • Page 95: Digital Signal Process Block Diagram

    6-7 Digital Signal Process Block Diagram DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO SIGNAL DATA(AUDIO) SIGNAL IC102 (SDRAM) IC101 (MICRO CONTROLLER) SDRAM ADDRESS(0-10) SDRAM ADDRESS(0-10) DATA SDRAM EXTERNAL MEMORY DECODER INST. DECODER STREAM SDRAM DATA(0-31) SDRAM DATA(0-31) DATA PIXEL OPERATION INST. DATA CN201 SIGNAL DVD/CD PROCESSOR...

  • Page 96: Dvd Video / Audio Block Diagram

    6-8 DVD Video / Audio Block Diagram DVD VIDEO SIGNAL DATA(AUDIO) SIGNAL DVD AUDIO SIGNAL IC1402 (VIDEO DRIVER) DRIVER JK1401 S-VIDEO OUT DRIVER CN601 CN1601 DRIVER VIDEO-Y VIDEO-Y FROM DIGITAL VIDEO-C VIDEO-C SIGNAL PROCESS VIDEO-Cb DRIVER VIDEO-Cb DVD-VIDEO TO VIDEO BLOCK DIAGRAM VIDEO-Cr BLOCK DIAGRAM...

  • Page 97: System Control Timing Charts

    7 SYSTEM CONTROL TIMING CHARTS Still/Slow Control Frame Advance Timing Chart [ VCR Section ] 1) SP Mode Mode SW : LD-SW 18 RF-SW LD-SW Position detection A/D Input voltage Limit Symbol (Calculated voltage) The first rise of RF-SW after a rise in F-AD signal 3.76V~4.50V (4.12V) 4.51V~5.00V...

  • Page 98

    2) LP/SLP Mode 18 RF-SW The first rise of RF-SW after a rise in F-AD signal F-AD (Internal Signal) "H" "H" "Z" C-DRIVE "L" "L" Stop detection (T2) Acceleration Detection (T1) Slow Tracking Value PB CTL Reversal Limit Value 20ms 27 C-F/R 79 H-A-SW 78 ROTA...

  • Page 99

    1. EJECT (POWER OFF) -> CASSETTE IN (POWER ON) -> STOP(B) -> STOP(A) -> PLAY -> RS -> FS -> PLAY -> STILL -> PLAY -> STOP(A) PIN NO. LD-SW CL/SS 0.3S 0.3S LM-FWD "M" /REV 0.2S 0.2S 0.2S 0.2S 0.2S "Z"...

  • Page 100

    2. STOP(A) -> FF -> STOP(A) -> REW -> STOP(A) -> REC -> PAUSE -> PAUSE or REC -> STOP(A) -> EJECT PIN NO. LD-SW CL/SS LM-FWD "M" /REV 0.2S 0.2S 0.2S 0.2S 0.2S 0.2S "Z" C-DRIVE 20mS 20mS 20mS 0.1S 0.4S 0.4S...

  • Page 101

    [ DVD Section ] Tray Close ~ Play / Play ~ Tray Open Disc Tray Tray Disc Stop Open Close Rotation Play 3.3V Tray OUT (TL220) 3.3V Tray IN (TL221) 1.65V Sled Drive (TP303) 1.65V Disc Drive (TP301) 1.65V Focus Drive (TP304) 1.65V Tracking Drive...

  • Page 102: Ic Pin Function Descriptions

    8 IC PIN FUNCTION DESCRIPTIONS [ VCR Section ] Signal Active Function Name Level IC501( SERVO / SYSTEM CONTROL IC ) Video Head 18 OUT RF-SW Switching Pulse “H” ≥ 4.5V, “L” ≤ 1.0V Dummy 19 OUT D-V SYNC H/Hi-z Signal Active V-sync Output...

  • Page 103

    Signal Active Signal Active Function Function Name Level Name Level Composite Video C-SYNC Synchronized Envelope PULSE V-ENV Pulse Comparator Sig- VDD2 VDD2 Video Head Low Path Filter Switching Pulse PG-DELAY AFCC Input Signal For Signal Adjusted Voltage Low Path Filter A/D Key Data KEY-2 44 OUT AFCLPF...

  • Page 104

    IC571 [ PT6313-S-TP ] Signal In/Out Name Function Name Clock Input Serial Interface Strobe Not Used Not Used Power Supply Segment Output Pull Down Level Segment Output Grid Output Power Supply Oscillator Input DOUT Serial Data Output Serial Data Input...

  • Page 105: Lead Identifications

    9 LEAD IDENTIFICATIONS BN1F4M-T 2SC1815-BL(TPE2) NJM4558D 2SK3543 BA1F4M-T 2SC1815-Y(TPE2) KIA4558P KTA1266(GR) 2SC1815-GR(TPE2) KTC3193(Y) 2SC2120-Y(TPE2) KTC3199(Y,GR,BL) KTC3203(Y) 2SC2785(J,H,F,K) 2SA1015-GR(TPE2) KRC103M KTC3198(Y,GR) KRA103M 2SC2001(K) 2SA1175(J,H,F) 2SC2001(L) KTA1267(Y) KTA1267(GR) G D S E C B E C B 2SC536NF(NG)-NPA-AT PT6313-S-TP LA71091M LTV-817(B,C)-F TC4053BF(N) MM1622XJBE BU4053BCF KIA431-AT...

  • Page 106

    No. 9302E Digital Media Division, Tokai DV-PF73U DV-PF73U(C) DV-PF33U...

  • Page 107

    How to cancel "error code" Power -off and power on again Error1 Reel rotation is abnormal Check the Reel pulse by Oscilloscope Test point TP505 Cause: missing Reel pulse for the following time PB/REC : SP 5second,EP 14 second,FF/REW 4 seconds Check on D555/Q506 -Pulse entered? If so, check the Capstan Motor.

This manual also for:

Dv-pf73uc, Dv-pf33u

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