Hitachi DV-PF3A(S) Service Manual
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Hitachi DV-PF3A(S) Service Manual

Hitachi DV-PF3A(S) Service Manual

Dvd player & video cassette recorder
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TK
No. 9307E
DV-PF3A(S)
SERVICE MANUAL
PROGRAM
AV 3
DVD OUTPUT VCR
TIMER
REC
VIDEO IN
L (mono) AUDIO IN R
PAL
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
DVD PLAYER & VIDEO CASSETTE RECORDER
June
2003
Digital Media Division, Tokai

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Summary of Contents for Hitachi DV-PF3A(S)

  • Page 1 No. 9307E DV-PF3A(S) SERVICE MANUAL PROGRAM AV 3 DVD OUTPUT VCR TIMER VIDEO IN L (mono) AUDIO IN R SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT DVD PLAYER & VIDEO CASSETTE RECORDER June 2003 Digital Media Division, Tokai...

  • Page 2: Table Of Contents

    CONTENTS 1 CAUTIONS FOR SAFETY IN PERFORMING 6 EXPLODED 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 1. 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 (4) Bottom of the flat pack-IC is fixed with glue to the With Soldering Iron: 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: Instructions For Handling Semi-Conductors

    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: Notes When Using Service Manual

    1-4 NOTES WHEN USING SERVICE MANUAL The following shows the contents to be noted when using service manual: 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 10 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. 2. CAUTION: Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit. If Main Fuse (F1001) is blown, first check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.

  • Page 11: General Information

    GENERAL INFORMATION 2-1 SPECIFICATIONS ITEM DESCRIPTION TV system PAL BG/DK, SECAM BG/DK Video head Rotating 4 heads Rotating 2 head helical scan brightness signal FM method Recording system VHS standard for methods to directly record color signal low frequency conversions Hi-Fi audio track: 2 channel Audio track Normal audio track: 1 channel...

  • Page 12: Comparison Of Models

    2-2 COMPARISON OF MODELS 2-2-1 VCR Section ←: Same as on left ITEM DV-PF3A(S) VT-FX695EGK ← Video Format ← Y/C Separation Comb Filter YNR (Luminance Noise Reduction) ← Circuit ← Picture Control Video/Audio Input (Rear) Video/Audio Input (Front) 1 (IN3) Video/Audio Output (Rear) 1 (with adopter) Power Supply...

  • Page 13: Dvd Section

    2-2-2 DVD Section ←: Same as on left ITEM DV-PF3A(S) DV-P388A(S) ← Drive Speed ← Laser ← DVD/VCD/SVCD/CD-DA O / O / --- / O ← CD-R/CD-RW/DVD-R (Video Format) O / O / O ← DVD-RAM (VR Format) ← OSD languages (DVD) 2 (English, Russian) 2 (English, Chinese) ←...

  • Page 14: Operating Controls And Functions

    2-3 OPERATING CONTROLS AND FUNCTIONS FRONT PANEL PROGRAM AV 3 DVD OUTPUT VCR TIMER VIDEO IN L (mono) AUDIO IN R 18 16 11. F.FWD ( g) Button (VCR) REMOTE CONTROL Press to rapidly advance the tape, or view the picture rapidly in forward during playback.
  • Page 15 27. ZOOM Button 40. h Button ● Enlarges part of a DVD-reproduced image. DVD mode 28. CLEAR/C.RESET Button Press to view the DVD picture in fast reverse motion ● DVD mode or to reverse playback of an Audio CD. ● Press to reset the setting.

  • Page 16: Rear View

    +10 Button: EJECT Button (VCR) When searching a TITLE, a CHAPTER, or a Press to eject the video cassette from the VCR. 54. SEARCH MODE/QUICK-FIND Button TRACK, use this button to enter numbers 10 and ● DVD mode above. For example when entering ‘15’, press this Press to access or remove the Search display, button first ,then ‘5’.

  • Page 17: 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 18 FLOW CHART NO.6 P-ON+5V is not outputted. Check D016, D017, C017, C018, 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, R058, R059, R060 and their periphery, and service it if defective.
  • Page 19 FLOW CHART NO.11 The fluorescent display tube does not light up. Is 3.3V voltage supplied to Pin(6, 24) of IC612? 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 20: 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 (SW2020, SW2021, the key switches (SW2020-2022) normal? SW2022) correctly or replace the poor switch. When pressing each key switches (SW2020, Check the key switches (SW2020, SW2021, SW2021, SW2022), do the voltage of each pin SW2022) and their periphery, and service it if...
  • Page 21 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 22 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 Mechanism. CN1601 on the Main CBA? CN1601 1PIN CN1601...
  • Page 23 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 Mechanism. Are the analog audio signals outputted to each pin of CN1601 on Main CBA? CN1601 13PIN DVD-A(L) CN1601 15PIN DVD-A(R) Check each line between each pin of CN1601 Are the analog audio signals inputted to each pin...

  • Page 24: 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 25 FLOW CHART NO.3 Cassette tape can not be loaded. When loading a cassette tape, on Pin(10) of Check the line between the start sensor and IC501, does the "L" pulse switch to the "H" pulse? Pin(10) of IC501, and service it if detective. When loading a cassette tape, is the specified Replace the Capstan Motor Unit.
  • Page 26 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(76) of IC501, and service it if detective.
  • Page 27 FLOW CHART NO.10 Video E-E does not appear. 1) In the external input mode Is the Video signal inputted to Pins(48,50,52,54) of Check the line between Pin(20) of JK101 (Scart IC301? jack) and Pin(50) of IC301, and service it if detective.
  • Page 28 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 Scart jack 1 Front input terminal Pin(8) Pin(54)
  • Page 29 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 CL251 and Is the line between Pin(8) of CL251 and Pin(26) of IC451.
  • Page 30 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(9) of IC301? Is the audio signal outputted to Pin(11) of IC301? Replace Check the line between Pin(11) of IC301 and Pin(80) of IC451, and IC301.

  • Page 31: 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 32: 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 (HI) B587 Tension Lever Assembly AC Head Assembly B573, B574 Reel S, Reel T...

  • Page 33: Cleaning

    3-3-2 Cleaning Cleaning of ACE 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 ACE head.

  • Page 34: Disassembly

    DISASSEMBLY 4-1 CABINET DISASSEMBLY INSTRUCTIONS 4-1-1 Disassembly Flowchart REMOVAL This flowchart indicates the disassembly steps to gain REMOVE/*UNHOOK/ LOC. PART Fig.No 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 35 Reference Notes (S-3) CAUTION 1: Locking Tabs (L-1) are fragile. Be careful (S-3A) not to break them. [3] Top Bracket 1-1. Remove Screw (S-2). 1-2. Release seven Locking Tabs (L-1) (to do this, first release five Locking Tabs (A) at the side and (S-3A) top, and then release two Locking Tabs (B) at the (L-1)
  • Page 36 (S-5) CN201 (S-5) (S-9) [5] DVD Main (S-8A) CN301 [9] Rear Panel (S-8) [8] PCB Bracket [7] Power Supply CBA (S-8) (S-8A) DVD Mecha Fig. 4-1-6 Short the three short (S-11) (S-10) lands by soldering (S-10) Slide (S-11) (S-10) (S-11A) Pickup Unit [10] VCR Chassis Unit View for A...
  • Page 37 FE Head Cylinder Assembly [11] Deck ACE Head Assembly Assembly SW507 LD-SW [12] Main CBA [11] Deck Assembly Cam Gear Hole Shaft Hole LD-SW [12] Main CBA [12] Main CBA (S-12) (S-12A) From Lead with Cylinder From From blue stripe Assembly FE Head ACE Head...
  • Page 38 Main CBA (S-13) [17] Deck Pedestal Desolder [15] Jack CBA Lead with [16] AFV CBA blue stripe (S-13) (S-14) [13] DVD OPEN/ CLOSE CBA Lead with Desolder from bottom blue stripe [18] Side Desolder Bracket Desolder from Lead with bottom blue stripe [14] Function CBA Fig.

  • Page 39: Disassembly/Assembly Procedures Of Deck Mechanism

    4-2 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 4-1.) All the following procedures, including those for adjustment and replacement of parts, should be done in Eject mode;...
  • Page 40 REMOVAL INSTALLATION STEP START- REMOVE/*UNHOOK/ /LOC. PART ADJUSTMENT Fig. No. UNLOCK/RELEASE/ CONDITION UNPLUG/DESOLDER Loading Arm (SP) (+)Refer to Alignment [34] [26] 4-2-2,4-2-14 Assembly Sec.Page 4-13 Loading Arm (TU) (+)Refer to Alignment [35] [34] 4-2-2,4-2-14 Assembly Sec.Page 4-13 M Brake (TU) Assembly [36] [16],[26] 4-2-1,4-2-15...

  • Page 41: Top View

    Top View [44] [45] [49] [46] [14] [13] [11] [15] [38] [10] [12] [37] [36] [43] [32] [41] [31] [40] [42] Fig. 4-2-1 Bottom View [19] [35] [34] [25] [23] [24] [26] [27] [22] [28] [20] [33] Fig. 4-2-2...
  • Page 42 (S-1) (S-1) (L-1) (L-3) (L-2) (S-1A) (P-1) (S-1B) Fig. 4-2-5 [49] Fig. 4-2-3 Pin D [50] (L-12) 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 in the right, slide and pull up the right side on [2] to release Pin A and Pin B from the slots A.
  • Page 43 (S-4) (S-5) [14] (S-6) [15] Desolder from bottom (S-3) Lead with White Stripe Belt View for A Fig. 4-2-7 Fig. 4-2-9 Adj. Screw [11] [17] (L-4) (L-5) (P-3) [16] [13] [18] [12] (P-4) [10] (P-2) (S-7) Pin of [12] Pin of [10] Fig.
  • Page 44 [26] (S-8) (C-3) (S-9) (L-8) [23] (L-7) [24] (C-5) (C-4) (C-2) [28] [25] [29] [30] [19] Cap Belt [27] Fig. 4-2-11 turn (C-1) [22] [20] (L-6) [31] [21] Position of Mode Lever when installed Pin of [37] Pin of [33] Pin of [36] Bottom View [26]...
  • Page 45 (P-5) [45] [44] [33] Refer to the Alignment [46] Section, Page 4-13. (L-11) [35] [32] (L-9) [34] Fig. 4-2-16 Fig. 4-2-14 [38] [36] [43] (P-6) turn [39] (L-10) turn [47] [48] [42] Slide turn Fig. 4-2-17 [37] (C-7) [41] (C-6) [40] Fig.

  • Page 46: Alignment Procedures Of Mechanism

    4-3 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 47: Adjustment

    ADJUSTMENT 5-1 PREPARATION FOR SERVICING 5-1-1 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 48: Fixture And Tape For Adjustment

    5-2 FIXTURE AND TAPE FOR ADJUSTMENT 1. Alignment Tape 2. Guide Roller Adj. Screwdriver No. 7099052 (MH-2) No. 7099028 3. Flat Screwdriver (Purchase Locally) 5-2-1 How To Use The Fixtures And Tape Item No. Name Part No. Adjustment I Head Switching Point Alignment Tape 7099052 I Tape Interchangeability Alignment...

  • Page 49: Electrical Adjustment Instructions

    5-3 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 all EXT. Syncronize Trigger Point repairs and replacements have been completed.

  • Page 50: Mechanical Alignment Procedures

    5-4 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 51: Tape Interchangeability Alignment

    5-4-2 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 5-7, procedure 1-C, step 2.) Equipment required: Dual Trace Oscilloscope VHS Alignment Tape (MH-2) Guide Roller Adj.

  • Page 52: 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 ACE Head. (Fig. 5-4-3 and 5- Purpose: 4-5) To make sure that the tape path is well stabilized. 4.

  • Page 53: 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 54: Exploded Views And Parts List

    EXPLODED VIEWS AND PARTS LIST 6-1 EXPLODED VIEWS 6-1-1 Cabinet Section DVD MAIN CBA [CBA REPLACEMENT (ORDER FORMAT)] DVD MECHANISM SENSOR CBA JACK CBA [UNIT REPLACEMENT (ORDER FORMAT)] [COMPONENT [COMPONENT REPLACEMENT] REPLACEMENT] 2L021 2L021 POWER SUPPLY CBA 2B46 [COMPONENT REPLACEMENT] 2B15 2L011 2L021...

  • Page 55: 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) SLIDUS OIL #150 SANKOUL FG84M (Yellow grease) Mark Description Floil G-684G or Multemp MH-D (Blue grease) SLIDUS OIL #150 B587 B521 B487...

  • Page 56: Deck Mechanism View 3 Section

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

  • Page 57: Replacement Parts List

    6-2 REPLACEMENT PARTS LIST 6-2-1 Mechanical Parts List SYMBOL-NO P-NO DESCRIPTION SYMBOL-NO P-NO DESCRIPTION B487 TJ16911 BAND BRAKE(SP) MECHANISM SECTION B488 TJ17198 MODE LEVER TJ17389 FRONT ASSEMBLY B491 TJ16946 CAM GEAR(A) TS18404 TOP COVER B492 TJ17199 MODE GEAR TJ17391 PANEL REAR B494 TJ16915 CASSETTE DOOR OPENER...

  • Page 58: 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 TE15287 ANGLE PIN HEADER 9P RESISTOR CN701 TS17736 AFV PCB ASSEMBLY...

  • Page 59: Schematic, Circuit Board And Block Diagrams

    SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS 1 WIRING DIAGRAMS FRONT REAR 1-1 VCR Section VIDEO AUDIO AUDIO S-VIDEO DIGITAL AUDIO AUDIO OUT(R) OUT (L) AUDIO OUT OUT (R) OUT (L) ANT-IN ANT-OUT CL591 JW007 CL505 CN1051 1 GND EV+1.5V KEY-1 EV+1.5V FUNCTION CBA 3 AL+5V(1)

  • Page 60: Vcr Section

    1-2 DVD Section DVD MECHANISM CN401 EV+1.5V EV+1.5V SENSOR EV+1.5V TRAY-OUT EV+3.3V EV+3.3V FG CBA CN301 FG-IN P-ON+3.3V(D) TRAY-IN SP(+) SP(-) TRAY-OUT SPINDLE TRAY-IN MOTOR TO MAIN CBA CN1051 SLED P-ON+5V (JW001) 8 SL(-) MOTOR EV+9V 9 SL(+) EV+9V FP-STB DRIVE CBA P-ON+3.3V FP-DIN...

  • Page 61: Schematic Diagrams

    2 SCHEMATIC DIAGRAMS 2-1 Main 1/9 Schematic Diagram...

  • Page 62: Main 2/9 & Sensor Schematic Diagrams

    2-2 Main 2/9 & Sensor Schematic Diagrams Note: When it is necessary to replace one or more of the following Diodes, all four should be replaced: D501, D502, D503, D504.

  • Page 63: Main 3/9 Schematic Diagram

    2-3 Main 3/9 Schematic Diagram...

  • Page 64: Main 4/9 Schematic Diagram

    2-4 Main 4/9 Schematic Diagram...

  • Page 65: Main 5/9 Schematic Diagram

    2-5 Main 5/9 Schematic Diagram...

  • Page 66: Main 6/9 Schematic Diagram

    2-6 Main 6/9 Schematic Diagram...

  • Page 67: Main 7/9 Schematic Diagram

    2-7 Main 7/9 Schematic Diagrams...

  • Page 68: Main 8/9 & Dvd Open/Close Schematic Diagram

    2-8 Main 8/9 & DVD OPEN/ CLOSE Schematic Diagrams...

  • Page 69: Main 9/9 Schematic Diagram

    2-9 Main 9/9 Schematic Diagrams...

  • Page 70: Power Supply & Junction Schematic Diagrams

    2-10 Power Supply & Junction Schematic Diagrams CAUTION ! Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit. CAUTION ! NOTE : For continued protection against fire hazard, The voltage for parts in hot circuit is measured using If Main Fuse (F1001) is blown, check to see that all components in the power supply circuit are not defective before you connect the AC plug to the AC power supply.

  • Page 71: Jack Schematic Diagram

    2-11 Jack Schematic Diagram...

  • Page 72: Function Schematic Diagram

    2-12 Function Schematic Diagrams Note: When it is necessary to replace one or more of the following Diodes, all one should be replaced: D592, D593.

  • Page 73: Afv Schematic Diagram

    2-13 AFV Schematic Diagram...

  • Page 74: Dvd Main 1/3 Schematic Diagram

    2-14 DVD Main 1/3 Schematic Diagram...

  • Page 75: Dvd Main 2/3 Schematic Diagram

    2-15 DVD Main 2/3 Schematic Diagram...
  • Page 76 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 77: Dvd Main 3/3 Schematic Diagram

    2-16 DVD Main 3/3 Schematic Diagram...

  • Page 78: Waveforms

    3 WAVEFORMS (TP301 of Main CBA) UPPER Pin 13 of CN1601 Pin 1 of CN1601 NOTE: (TP504 of Main CBA) LOWER Input CD: 1kHz PLAY (WF7~WF9) DVD: POWER ON (STOP) MODE (WF4~WF6) C-PB 10mV x 10 RF-SW 0.5V x 10 VIDEO-Y 0.2V 20µsec...

  • Page 79: Circuit Board Diagrams

    4 CIRCUIT BOARD DIAGRAMS 4-1 Main CBA Top View & Sensor CBA Top View Sensor CBA Top View TP751 TP301 C-PB V-OUT VR501 SW-P TP503 TP504 RF-SW TP501 S-INH...

  • Page 80: Main Cba Bottom View

    4-2 Main CBA Bottom View...

  • Page 81: Function Cba Top/Bottom View & Dvd Open/Close Cba Top/Bottom View

    4-3 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 82: Power Supply Cba Top/Bottom View & Junction Cba Top/Bottom View

    4-4 Power Supply CBA Top/Bottom View & Junction CBA Top/Bottom View Power Supply CBA Top View Power Supply CBA Bottom View BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER CAUTION ! CAUTION ! SUPPLY CIRCUIT , AN ISOLATION TRANSFORMER MUST BE USED. For continued protection against fire hazard, Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.

  • Page 83: Jack Cba Top/Bottom View & Afv Cba Top/Bottom View

    4-5 JACK CBA Top/Bottom View & AFV CBA Top/Bottom View Jack CBA Top View Jack CBA Bottom View AFV CBA Top View AFV CBA Bottom View...

  • Page 84: Block Diagrams

    5 BLOCK DIAGRAMS 5-1 Servo/System Control Block Diagram (DECK ASSEMBLY) IC501 TP501 S-INH FUNCTION CBA MAIN CBA AL+5V (SERVO/SYSTEM CONTROL) SW507 KEY- 2 SWITCH CL505 CL591 ACE HEAD ASSEMBLY LD-SW KEY- 1 KEY-1 KEY SWITCH D555 Q507 POWER-LED POWER-LED S-LED AL+5V CL287 CL504...

  • Page 85: Video Block Diagram

    5-2 Video Block Diagram REC-VIDEO SIGNAL PB-VIDEO SIGNAL DVD VIDEO SIGNAL MODE: SP/REC MAIN CBA IIC-BUS SDA TO SERVO/SYSTEM IIC-BUS SCL CONTROL BLOCK IC501 (OSD) Q301 CHARACTER BUFFER TU701 VIDEO TU-VIDEO IC301 (Y/C SIGNAL PROCESS) (DECK ASSEMBLY) SERIAL DECORDER Y. DELAY CYLINDER ASSEMBLY CL251 JK752...

  • Page 86: Audio Block Diagram

    Audio Block Diagram PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC MAIN CBA N-A-PB TO Hi-Fi N-A-REC AUDIO BLOCK IC301 (AUDIO SIGNAL PROCESS) TUNER PB-ON LINE MUTE (DECK ASSEMBLY) SP/LP-ON ACE HEAD ASSEMBLY REC-ON Q404 CL287 CL504 AUDIO A-PB/REC 4 4 A-PB/REC Q403 HEAD A-COM 3...

  • Page 87: Hi-Fi Audio Block Diagram

    5-4 Hi-Fi Audio Block Diagram DVD AUDIO SIGNAL PB-AUDIO SIGNAL REC-AUDIO SIGNAL Mode : SP/REC JACK CBA MAIN CBA IC751 (SW) JK1402 CL2018 CL2017 A-IN2(R) A-IN2(R) A-IN2(L) A-IN2(L) Q107 A-OUT2(R) A-OUT2(R) BUFFER A-OUT2(L) A-OUT2(L) Q108 BUFFER SW CTL JK101 A-OUT1(R) Q752 TO SERVO A-OUT1(L)

  • Page 88: Power Supply Block Diagram

    5-5 Power Supply Block Diagram NOTE : CAUTION CAUTION ! Fixed voltage (or Auto voltage selectable ) power supply circuit is used in this unit. The voltage for parts in hot circuit is measured using FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, If Main Fuse (F001) is blown, check to see that all components in the power supply REPLACE ONLY WITH THE SAME TYPE T1.6AL/250V FUSE.

  • Page 89: Dvd System Control/Servo Block Diagram

    5-6 DVD System Control/Servo Block Diagram SLED SERVO SIGNAL SPINDLE SERVO SIGNAL FOCUS SERVO SIGNAL TRACKING SERVO SIGNAL DVD OPEN/CLOSE SW CBA IC101 (MICRO CONTROLLER) SW2020 CL2015 CL2016 OPEN/CLOSE 2 GND EXT CLOCK 1 OPEN/CLOSE 1 CLK33M BE CLOCK IC451 (CLOCK GENERATOR) X451 IC202...

  • Page 90: Digital Signal Process Block Diagram

    5-7 Digital Signal Process Block Diagram DATA(AUDIO) SIGNAL DATA(VIDEO/AUDIO) SIGNAL DVD VIDEO 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 DVD/CD SIGNAL PROCESSOR...

  • Page 91: Dvd Video / Audio Block Diagram

    5-8 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 VIDEO-C FROM DIGITAL VIDEO-C VIDEO-R DVD-VIDEO TO VIDEO SIGNAL PROCESS DRIVER VIDEO-R VIDEO-G BLOCK DIAGRAM BLOCK DIAGRAM...

  • Page 92: System Control Timing Charts

    6 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 93 2) LP 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 78 C-F/R 16 H-A-SW 15 ROTA...
  • Page 94 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" 0.2s /REV 0.2s 0.2s 0.2s 0.2s "Z"...
  • Page 95 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 0.1s 20ms 20ms 0.4s 0.4s...
  • Page 96 [ 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 97: Ic Pin Function Descriptions

    7 IC PIN FUNCTION DESCRIPTIONS [ VCR Section ] Signal Active Function Name Level IC501( SERVO / SYSTEM CONTROL IC ) POWER- “POWER” LED 23 OUT Signal Output “H” ≥ 4.5V, “L” ≤ 1.0V Not Used 25 OUT TIMER- “TIMER” LED Signal Signal Active Function...
  • Page 98 Signal Active Signal Active Function Function Name Level Name Level OSDVcc OSDVcc Supply Reel S-REEL PULSE Rotation Signal Not Used Take Up Reel PULSE T-REEL SECAM or Rotation Signal COLOR- MESECAM Chroma H/L/ 81 OUT LM-FWD/ Loading Motor Video Input Signal at Control Signal Hi-z Super Impose...
  • Page 99 IC612 [ PT6315-S(TP) ] Signal In/Out Name Function Name Clock Input Serial Interface Strobe Key Data 1 Input Key Data 2 Input Power Supply Segment Output Pull Down Level Segment Output Grid Output Power Supply Oscillator Input DOUT Serial Data Output Serial Data Input...

  • Page 100: Lead Identifications

    8 LEAD IDENTIFICATIONS BN1L4M-T MID-32A22 2SC1815-BL(TPE2) PQ070XF01SZ BN1F4M-T PT204-6B-12 2SC1815-Y(TPE2) BA1F4M-T 2SC1815-GR(TPE2) KTA1266(GR) 2SC2120-Y(TPE2) KTC3199(Y,GR,BL) KTC3203(Y) 2SC2785(J,H,F,K) 2SA1015-GR(TPE2) KRC103M 2SA1020(Y) KRA103M 2SC3266-Y(TPE2) 2SA1175(J,H,F) KTA1281(Y) KTA1267(Y) KTC3205(Y) 1 2 3 4 KTA1267(GR) KRA104M E C B E C B 2SK3566 FMG4A T148 FA1F4M-T1B RN1511(TE85R) NJM4558D...
  • Page 101 No. 9307E Digital Media Division, Tokai DV-PF3A(S)

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