Panasonic Omnivision PVQ-2511 Service Manual
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Panasonic Omnivision PVQ-2511 Service Manual

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ORDER NO. MKE0102103C1
B6
Combination VCR
PVQ-2511 / PV-C2541
SPECIFICATIONS

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Summary of Contents for Panasonic Omnivision PVQ-2511

  • Page 1 ORDER NO. MKE0102103C1 Combination VCR PVQ-2511 / PV-C2541 SPECIFICATIONS...

  • Page 2: Safety Precautions

    law. 1. SAFETY PRECAUTIONS GENERAL GUIDELINES 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturer's specified parts to prevent X-RADIATION, shock, fire, or other hazards.
  • Page 3 B+ Line Minimum Resistance 125 V (Cold chassis ground) 27 V (Cold chassis ground) 17 V (Cold chassis ground) 6. When the TV set is not used for a long period of time, unplug the power cord from the AC outlet. 7.
  • Page 4 Do not use a isolation transformer for this check. 2. Connect a 1.5 k , 10 W resistor, in parallel with a 0.15 capacitor, between each exposed metallic part on the set and a good earth ground , as shown in Figure 1. 3.
  • Page 5 2. Set the SERVICE switch to SERVICE. 3. Measure the High Voltage. The meter reading should indicate 30.0 kV±2.0 kV. If the meter indication is out of tolerance, immediate service and correction is required to prevent the possibility of premature component failure.

  • Page 6: Prevention Of Electrostatic Discharge

    sync, the beam current decreases and the picture becomes dark in order to keep X-radiation under specification. Figure 2 3. PREVENTION OF ELECTROSTATIC DISCHARGE (ESD) TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Electrostatically Sensitive (ES) Devices.

  • Page 7: Service Notes (Please Read)

    conductive material). 7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the chassis or circuit assembly into which the device will be installed. CAUTION: Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
  • Page 8 Fig. 1-3 Fig. 1-4 Fig. 1-5...
  • Page 9 3. Press any operation button except for POWER on either the unit, or the remote to detect that a key has been pressed. The 1st digit changes to "0" only when key is detected. Fig. 1-6 Note: When 1 to 4 listed in Lock code occurs, the VCR stops and all VCR function buttons except for power become non-operational.
  • Page 10 Note: 1. After replacing the Cylinder Unit, press COUNTER RESET button on remote in this mode. Only Total elapsed "Cylinder rotation" time (in hours) will be cleared to 0. 2. To release from Usage Screen Mode, press any operation button on unit or insert a cassette tape in this mode.

  • Page 11: Service Mode

    5.1.3.3. Service Position (2) Fig. 2-2 Note: 1. It is possible that the S-Tab SW. may not work correctly in Service Position (2). (Recording can not be done). In this case, short the S- Tab SW. Pins on the foil side of the TV/VCR Main C.B.A. to turn this SW.
  • Page 12 In order to inhibit detection of the Supply & Takeup Photo Transistors, Reel Sensor, and Cylinder Lock, press and hold STOP/EJECT, PLAY/REPEAT, and CH down buttons on the unit together over 5 seconds in power on condition. Fig. 3 The unit goes into service mode. In this mode, Mechanism movement can be confirmed.
  • Page 13 After the Memory IC (IC6004) or TV/VCR Main C.B.A. is replaced, be sure to set the Default value to Memory IC as shown in "Memory IC Reference Table" below. 1. Press and hold STOP, PLAY, and VOL DOWN buttons on the unit together over 5 seconds with no cassette inserted.
  • Page 14 5.1.9. METHOD FOR LOADING/UNLOADING OF MECHANISM 5.1.9.1. (Manual Method) Turn the Loading Gear clockwise (for loading) or counterclockwise (for unloading) using needlenose pliers etc. Note: Do not use this method if Mechanism is jammed or locked. Fig. 6-1 5.1.9.2. (Electrical Method) Apply +10.0 V DC Power Supply to the Loading Motor terminals.
  • Page 15 Before applying DC Power Supply, be sure to cut the Motor Leads with a cutter, etc. Otherwise, the Loading Motor Drive IC (IC2501) may be damaged. When reconnecting the Motor Leads, solder at below / 320 °C for less than 3 seconds. Fig.
  • Page 16 When a tape jam is encountered, check the tape loading condition and use the following procedure to remove a tape jam. Fig. 7-1 5.1.10.1.1. Method -1: 1. Move the Pinch Roller Unit out by unhooking the Pin of Pinch Arm Unit so that the Pinch Roller is separated from the Capstan Rotor Unit shaft.
  • Page 17 5.1.10.1.2. Method -2: 1. Rotate Loading Motor counterclockwise with needlenose pliers, etc. so that the Pinch Roller is separated from the shaft of the Capstan Rotor Unit. 2. Perform Step 2 through Step 7 of Method -1. 5.1.10.1.3. Method -3: 1.
  • Page 18 3. When the Loading Posts reach the fully unloaded position, remove the Power Supply. Fig. 8 4. Rewind the tape into the cassette by turning the Center Clutch Unit counterclockwise. 5. Eject the cassette by applying +10.0 V DC Power Supply again. 5.1.11.
  • Page 19 Ejecting the cassette tape and then reinserting it will reset the tracking to the Neutral position. 5.1.13. BLACK SCREWS ON THE CHASSIS Black Screws are used on the Mechanism Chassis to identify screws that require adjustment. 5.1.14. HOW TO RESET ALL COMBINATION VCR MEMORY FUNCTIONS To reset (clear) the select language, channel auto set and set clock functions to their initial power on condition (power on, no cassette inserted), hold down the PLAY and FF buttons on the unit together for more than 5 seconds.
  • Page 20 (130 °C ~150 °C) for about 2 minutes. Note: A. Leadless components must not be reused after removal. B. Excessive mechanical stress and rubbing of the component electrode must be avoided. 2. Removing the leadless component Grasp the leadless component body with tweezers and alternately apply heat to both electrodes.

  • Page 21: Ic, Transistor And Chip Part Information

    board. 5.1.19. MODEL NO. IDENTIFICATION MARK Use Marks shown in the chart below to distinguish the different models included in this Service Manual. 5.2. IC, TRANSISTOR AND CHIP PART INFORMATION...

  • Page 22: Disassembly/Assembly Procedures

    6. DISASSEMBLY/ASSEMBLY PROCEDURES 6.1. CABINET SECTION 6.1.1. Disassembly Flowchart Perform all disassembly procedures in the order described in the "Disassembly Flowchart"...
  • Page 23 shown below. When reassembling, use the reverse procedure. CAUTION: Disconnect AC plug before disassembly. Fig. D1 6.1.2. Disassembly Method...
  • Page 24 How to read chart shown above: A:Order of Procedure steps. When reassembling, perform steps(s) in reverse order. These numbers are also used as the identification (location) No. of parts in Figures. B: Part to be removed or installed. C: Fig. No. showing Procedure or Part Location. D: Identification of part to be removed, unhooked, unlocked, released, unplugged or unsoldered.
  • Page 25 Fig. D3 Fig. D4...
  • Page 26 Fig. D5 6.1.2.1. Notes in chart...
  • Page 27 1. Installation of VCR Unit CAUTION: Opener Lever may be damaged when VCR Unit is installed, with Cassette Door-Lid and Opener Lever of Cassette Up Ass’y set incorrectly. A. When installing the VCR Unit, swing the Cassette Door-Lid all the way open until the Cassette Door tab clears the Opener Lever.

  • Page 28: Mechanism Section

    Work carefully so as not to break Sensor LED when lifting the Mechanism Chassis and Cassette Up Ass’y. Installation of Mechanism Chassis and Cassette Up Ass’y onto TV/ VCR Main C.B.A. A. Make sure the Mode Select SW. on the TV/VCR Main C.B.A. is in EJECT position.
  • Page 29 6.2.2. Inner Parts Location Fig. J1-1...
  • Page 30 6.2.3. EJECT Position Confirmation Fig. J1-2...
  • Page 31 6.2.4. Grounding Plate Unit, Full Erase Head, and Cylinder Unit Fig. J2-1...
  • Page 32 6.2.4.1. Reassembly Notes 1. Adjustment of Grounding Plate Unit A. After installing, make sure that the Grounding Plate Unit, on the top side of mechanism chassis, is positioned on the front side of the Cylinder shaft so that the center line of the plate is just less than 1.0 mm measured from the center of the Cylinder shaft.

  • Page 33: Service Notes

    2. After replacing the Cylinder Unit, clear the Total elapsed "Cylinder rotation" time (in hours) to 0. Refer to "USAGE SCREEN MODE" in SERVICE NOTES. 6.2.5. Capstan Belt, Support Angle, Intermediate Gear B, and Main Cam Gear Fig. J3-1...
  • Page 34 6.2.5.1. Reassembly Notes 1. Alignment of Main Cam Gear, Drive Rack Arm, and Main Rod A. Confirm that the hole on Main Rod is a Through Hole with a hole on chassis. B. Confirm that the hole on Drive Rack Arm is a Through Hole with a hole on chassis.
  • Page 35 2. Confirmation/Alignment of Intermediate Gear B, Main Cam Gear, and Intermediate Gear A A. Confirm that the Hole A on Lift Gear is a Through Hole with a hole on chassis. B. Confirm that the hole on Intermediate Gear A is aligned with the hole on Lift Gear.
  • Page 36 Hole with Hole A on Support Angle in EJECT mode. The each mode Hole on Main Cam Gear should be a Through Hole with Hole B on Support Angle in each mode. Fig. J3-5 4. Main Cam Gear Kit A. Main Cam Gear is supplied as a Main Cam Gear Kit only (Kit No. VVGS0009).
  • Page 37 Fig. J4-1 6.2.6.1. Reassembly Notes 1. Installation of Center Clutch Unit A. Fit the Center Clutch Unit into the Changing Gear. Fig. J4-2 6.2.7. Reel Gear and Main Rod Fig. J5-1...
  • Page 38 6.2.7.1. Reassembly Notes 1. Alignment of Main Rod and T Loading Arm Unit A. Align the Gear of T Loading Arm Unit with Gear of Main Rod. Confirm that the Hole on Main Rod is a Through Hole with a hole on chassis.
  • Page 39 6.2.8.1. Reassembly Notes 1. Application of Silicon Grease CAUTION: When installing the IC2501 (AN3846SC) or Capstan Stator C.B.A., be sure to apply Silicon Grease (VFK1301) as shown. Be careful not to touch other parts with greased portion to prevent grease depletion.
  • Page 40 2. Installation of Capstan Rotor Unit and Oil Seal A. Install the 2 Oil Seals into the Capstan Holder Unit. Then, insert the Capstan Rotor Unit Shaft into the hole of the Capstan Holder Unit so that shaft passes through 2 Oil Seals. Be careful not to scratch the Shaft or Capstan Holder Unit.
  • Page 41 6.2.9.1. Reassembly Notes 1. Alignment of T Loading Arm Unit and S Loading Arm Unit A. Install the S Loading Arm Unit onto the chassis. B. Install the T Loading Arm Unit so that the hole on T Loading Arm Unit is aligned with the hole on S Loading Arm Unit. C.
  • Page 42 6.2.10.1. Reassembly Notes 1. How to distinguish between S Reel Table and T Reel Table Fig. J8-2 6.2.11. Loading Post Base -T Unit and Loading Post Base -S Unit Fig. J9...
  • Page 43 6.2.12. Opener Piece, Drive Rack Arm, Pinch Arm Unit, P5 Arm Unit, and Intermediate Gear A Fig. J10-1 6.2.12.1. Reassembly Notes 1. Installation/Alignment of Intermediate Gear A, Lift Gear and P5 Arm Unit A. Rotate the Lift Gear so that Hole A on Lift Gear is a Through Hole with a hole on chassis.
  • Page 44 2. Installation of Opener Piece A. Install the Opener Piece so that the slot of the Opener Piece is inserted to the Pin of Pinch Arm Unit Fig. J10-3 6.2.13. Motor Block Unit, Audio Control Head Unit, Lift Gear, Capstan Holder Unit, Tension Arm Boss, and Cleaner Arm Unit Fig.

  • Page 45: Cassette Up Ass'y Section

    6.3. CASSETTE UP ASS'Y SECTION How to read chart shown above: A: Order of Procedure steps. When reassembling, perform steps(s) in reverse order. These numbers are also used as the identification (location) No. of parts in Figures. B: Steps to be completed prior to the current step. C: Part to be removed or installed.
  • Page 46 F: Alignment/Adjustment which is required when installing or replacing each Parts. 6.3.1. Top Plate, Wiper Arm Unit, and Holder Unit Fig. K1-1 6.3.1.1. Reassembly Notes 1. Alignment of Wiper Arm Unit and Drive Rack Unit A. Slide the Drive Rack Unit to the far right as indicated by the arrow.
  • Page 47 2. Installation of Holder Unit A. Turn the Wiper Arm Unit so that the grooves on each end are aligned with the each groove on Side Plate L and R. B. Insert Holder Unit boss (A) and (B) into the grooves as shown in Fig.

  • Page 48: Adjustment Procedures

    6.3.2. Opener Lever and Drive Rack Unit Fig. K2 7. ADJUSTMENT PROCEDURES 7.1. SERVICE FIXTURES AND TOOLS 7.2. MECHANICAL ADJUSTMENT 7.2.1. CLEANING PROCEDURE FOR THE UPPER CYLINDER UNIT 1. While slowly turning the Upper Cylinder Unit counterclockwise by hand, gently rub the Video Heads with a Head Cleaning Stick (VFK27) moistened with Ethanol.
  • Page 49 Fig. M1 Note: 1. Do not rub vertically or apply excess pressure to the Video Heads. Do not turn the Upper Cylinder Unit clockwise while cleaning. 2. After cleaning, use a Dry Head Cleaning Stick (VFK27) to remove any Ethanol remaining on the cylinder tape path. Otherwise, tape damage will occur.
  • Page 50 Fig. M2-1 3. If the reading is out of specification, make sure that there is no dust or foreign material between the Brake Pad of Tension Control Arm Unit and the S Reel Table. After cleaning, the reading of tension measurement is still out of specification, replace the Tension Arm Unit and the Tension Control Arm Unit.

  • Page 51: Service Position

    be achieved. Equipment Required: Oscilloscope Specification: 0.1 mm ~ 0.13 mm 1. Remove the VCR Chassis Unit and then place it upside down. 2. Remove the TV/VCR Main C.B.A. 3. Slightly loosen Screw (A). Then set the Screwdriver (Phillips Driver) into the Hole (A). Turn the screwdriver clockwise until the MR Head touches the rotor.
  • Page 52 " in SERVICE NOTES. 2. Supply a Video Signal to the video input jack. 3. Insert a cassette tape and place the unit in SLP recording mode. 4. Connect the oscilloscope to Pin 9 of P6201 on the TV/VCR Main C.B.A.
  • Page 53 1. Place a jumper between TP6003 and +5V(TP6009) on the TV/VCR Main C.B.A. to defeat Auto Tracking. 2. Eject the tape and insert it again to access the Neutral Tracking position. 3. Play back the alignment tape. 4. Connect the oscilloscope to TP3002 on the Video Signal Process Section of the TV/VCR Main C.B.A.
  • Page 54 6. After adjustment, confirm that the tape travels without curling at P2 and P3 posts. Fig. M4-3 7. Remove the jumper after completing the adjustment procedure. 7.2.2.3.2. AUDIO CONTROL HEAD TILT ADJUSTMENT Purpose: To confirm that the tape runs smoothly. In particular, confirm that the tape properly picks up the Audio Signal at the upper part of the head and the Control Signal at the lower part of the head.
  • Page 55 Symptom of Misadjustment: If the control signal is not properly picked up, Servo Operation cannot be achieved. A Blue screen will be seen in Playback. This confirmation is required when the Audio Control Head is replaced. 1. Play back a T120 cassette tape and check that the lower edge of the tape runs approximately 0.25 mm above the lower edge of the Audio Control Head.
  • Page 56 4. Confirm the height of the Audio Control Head is proper. If not, readjust Black Screws (A) and (B). 7.2.2.3.5. AUDIO CONTROL HEAD HORIZONTAL POSITION ADJUSTMENT Purpose: To adjust the Horizontal Position of the Audio Control Head. Symptom of Misadjustment: If the Horizontal Position of the Audio Control Head is not properly adjusted, a maximum envelope cannot be obtained at the Neutral Position of the Tracking Control Circuit.

  • Page 57: Electrical Adjustment

    Note: Old type of H-Position Adjustment Driver (VFK0136) can be used for this adjustment. 7.3. ELECTRICAL ADJUSTMENT NOTE: Following Adjustments have been preadjusted at factory and are not required. - Purity Adjustment - Static Central Convergence Adjustment - Dynamic Convergence Adjustment 7.3.1.
  • Page 58 7.3.3. EVR (Electronic Variable Register) ADJUSTMENT WITH THE REMOTE CONTROL This unit has electronic technology using I2C Bus concept.The following control functions are adjusted by using "On Screen Displays" and the remote control instead of adjusting mechanical controls (VR). 7.3.3.1. EVR ADJUSTMENT ITEM The following Items need to be adjusted for EVR adjustment.
  • Page 59 - SUB CONTRAST ADJUSTMENT - CUT OFF, DRIVE ADJUSTMENT - SUB COLOR/SUB TINT ADJUSTMENT - V. HEIGHT/H. POSITION ADJUSTMENT - WHITE BALANCE ADJUSTMENT - SUB BRIGHTNESS ADJUSTMENT 7.3.3.2. How to enter EVR adjustment mode Press and hold STOP, PLAY, and VOL DOWN buttons on the unit together over 5 seconds with no cassette inserted.
  • Page 60 4. Press VOL UP/DOWN key on the remote control so that the shaded area moves to the control function. Fig. E2-4 5. Press CH UP/DOWN key on the remote control to select a control function for the next adjustment if necessary. Fig.
  • Page 61 2. Press DISPLAY key on the remote control for collapse scan. Note: Before pressing DISPLAY key on the remote control for collapse scan, select the desired control function and move the shaded area to the value for adjustments you will proceed. Fig.

  • Page 62: Sub Contrast Adjustment

    scope probe to TP6205. Used TP6205 as a trigger. 3. Adjust value so that the trailing edge of the head switching pulse is placed 6 H±1 H (0.38 ms±0.06 ms) before the start of the vertical sync pulse. 4. Release EVR PG Shifter Adjustment Mode. The adjusted value will be written to Memory IC (IC6004).
  • Page 63 Oscilloscope, NTSC Video Pattern Generator 1. Supply a Crosshatch Pattern Signal to the Video Input Jack. 2. Connect the Oscilloscope to Pin 5 of P6001 on the TV/VCR Main C.B.A. or TP49 on the CRT C.B.A. 3. Select SUB BRIGHT in EVR adjustment mode. Then, after making a note of the original value, adjust to the (D0).
  • Page 64 B CUT -OFF (EVR), G CUT -OFF (EVR), R CUT -OFF (EVR) Specification : Refer to descriptions below. INPUT : Video Input Jack, Monoscope Pattern Signal Mode : STOP Equipment : Oscilloscope, NTSC Video Pattern Generator 1. Supply a Monoscope Pattern Signal to the Video Input Jack. 2.
  • Page 65 8. Turn the SCREEN CONTROL on the Flyback Transformer clockwise carefully and stop at the point where any color is first observed. 9. In EVR adjustment mode, select the two colors not observed in step 8 from the following control functions (B CUT -OFF, G CUT - OFF, or R CUT -OFF) and adjust so that the horizontal line becomes white.
  • Page 66 Adjustment : SUB COLOR (EVR), SUB TINT (EVR) Specification : C = 1.50 V[p-p]±0.15 V[p-p] INPUT : Video Input Jack, Rainbow Color Bar Mode : STOP Equipment : Oscilloscope, NTSC Video Pattern Generator 1. Supply the Rainbow Color Bar signal to Video Input Jack. 2.
  • Page 67 6. Select SUB BRIGHT in EVR adjustment mode and reset to the original value. 7.3.8. V. HEIGHT/H. POSITION ADJUSTMENT Purpose: To set the standard vertical and horizontal picture size. Symptom of Misadjustment: The picture size is on the vertical and horizontal axis is abnormal. Test Point : ---------- Adjustment :...

  • Page 68: White Balance Adjustment

    1. Supply a Monoscope Pattern Signal to the Video Input Jack. 2. Select H CENTER in EVR adjustment mode and adjust so that A is approximately equal to width B. 3. Select V SIZE in EVR adjustment mode and adjust so that the top 4th line is just in view.
  • Page 69 SUB BRIGHT (EVR), G DRIVE (EVR), B DRIVE (EVR), R CUT -OFF (EVR), G CUT -OFF (EVR), B CUT -OFF (EVR) Specification : Refer to descriptions below. INPUT : Video Input Jack, Monoscope Pattern Signal, White Pattern Signal Mode : STOP Equipment : NTSC Video Pattern Generator,...

  • Page 70: Sub Brightness Adjustment

    8. Turn the SCREEN CONTROL on the Flyback Transformer clockwise carefully and stop at the point where any color is first observed. 9. In EVR adjustment mode, select the two colors not observed in step 8 from the following control functions (B CUT -OFF, G CUT - OFF, or R CUT -OFF) and adjust so that the horizontal line becomes white.

  • Page 71: Test Points And Control Location

    Symptom of Misadjustment: The picture is too white or too black. Test Point : ---------- Adjustment : SUB BRIGHT (EVR) Specification : Refer to descriptions below. INPUT : ---------- Mode : STOP 1. Do not input any signal to the unit. 2.

  • Page 72: Schematic Diagrams

    8. SCHEMATIC DIAGRAMS 8.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES 8.2. MAIN SCHEMATIC DIAGRAM 8.3. CAPSTAN STATOR SCHEMATIC DIAGRAM 8.4. HEAD AMP SCHEMATIC DIAGRAM ( Model: PVQ-2511 ) ( Model: PV-C2541 ) 8.5. CRT SCHEMATIC DIAGRAM 8.6. INTERCONNECTION SCHEMATIC DIAGRAM 8.7.

  • Page 73: Circuit Board Layout

    9. CIRCUIT BOARD LAYOUT 9.1. TV/VCR MAIN C.B.A. 9.2. CAPSTAN STATOR C.B.A. 9.3. HEAD AMP C.B.A. ( Model: PVQ-2511 ) ( Model: PV-C2541 ) 9.4. CRT C.B.A. 9.5. TV POWER C.B.A. 10. BLOCK DIAGRAMS 10.1. POWER SUPPLY BLOCK DIAGRAM 10.2. VIDEO SIGNAL PATH BLOCK DIAGRAM 10.3.

  • Page 74: Mechanism (Bottom) Section

    11.2. MECHANISM (BOTTOM) SECTION...

  • Page 75: Cassette Up Compartment Section

    11.3. CASSETTE UP COMPARTMENT SECTION...

  • Page 76: Chassis Frame Section

    11.4. CHASSIS FRAME SECTION (1)
  • Page 77 11.5. CHASSIS FRAME SECTION (2)

  • Page 78: Packing Parts And Accessories Section

    11.6. PACKING PARTS AND ACCESSORIES SECTION...

  • Page 79: Replacement Parts Lists

    12. REPLACEMENT PARTS LISTS BEFORE REPLACING PARTS, READ THE FOLLOWING: 12.1. REPLACEMENT NOTES 12.1.1. General Notes 1. Use only original replacement parts:...

  • Page 80: Special Note

    To maintain original function and reliability of repaired units, use only original replacement parts which are listed with their part numbers in the parts list. 2. IMPORTANT SAFETY NOTICE Components identified by the sign have special characteristics important for safety. When replacing any of these components, use only the specified parts.
  • Page 81 disassemble the Infrared Remote Control Unit. However, the battery cover is available separately as a replacement part. 4. Main Cam Push Nut (Ref. No. 414) is not reusable. If removed, install a new one. 12.1.3. Electrical Replacement Notes 1. Unless otherwise specified; All resistors are in , K = 1,000 , M = 1,000 k...

  • Page 82: Initialize Memory

    7. EEP ROM IC (IC6004), TV/VCR MAIN C.B.A. replacement note: After replacing EEP ROM IC (IC6004) or TV/VCR MAIN C.B.A., be sure to write the initial data with remote control. Refer to "HOW TO INITIALIZE MEMORY IC" in SERVICE NOTES. 8.
  • Page 83 Ref. No. Part No. Part Name & Description Remarks VBSS0033 FULL ERASE HEAD VXKS0901 MOTOR BLOCK UNIT LSDB0045 TENSION ARM BOSS VXDS0212 CAPSTAN HOLDER UNIT LSMD0209 OPENER PIECE VVGS0009 MAIN CAM GEAR KIT LSDR0002 S REEL TABLE LSDR0003 T REEL TABLE VEGS0453 CYLINDER UNIT ( A ) VEGS0454...

  • Page 84: Speaker Unit

    Ref. No. Part No. Part Name & Description Remarks LSDG0114 CHANGING GEAR VXLS1091 IDLER ARM UNIT VXPS0391 CAPSTAN ROTOR UNIT LSMA0387 STOPPER ANGLE LSMM0003 MAIN ROD LXQVB01250 COLOR PICTURE TUBE UNIT VXLS1099 S LOADING ARM UNIT VXLS1098 T LOADING ARM UNIT LSDG0116 REEL GEAR LSDG0111...
  • Page 85 VHDS0475 SCREW,STEEL Ref. No. Part No. Part Name & Description Remarks VHDS0496 SCREW W/WASHER,STEEL VHDS0498 SCREW W/WASHER,STEEL VHNS0070 MAIN CAM PUSH NUT,STEEL XWGV2D5G WASHER,NYLON XYC26+SF6J SCREW W/WASHER,STEEL TMM16517 CUSHION,RUBBER XTV26+6FFZJ TAPPING SCREW,STEEL XTV3+8JR TAPPING SCREW,STEEL XTV4+12A TAPPING SCREW,STEEL LHT60001Y SCREW W/WASHER,STEEL XTV4+16A TAPPING SCREW,STEEL VHDS0493...

  • Page 86: Electrical Replacement Parts List

    Ref. No. Part No. Part Name & Description Remarks VFMS0003H6 VHS ALIGNMENT TAPE VFKS0081 GREASE VFK0329 POST ADJUSTMENT DRIVER VFK1301 SILICON GREASE VFK27 HEAD CLEANING STICK VFK0330 H-POSITION ADJUSTMENT DRIVER 12.3. ELECTRICAL REPLACEMENT PARTS LIST PRINTED CIRCUIT BOARD ASSEMBLY Ref. No. Part No.
  • Page 87 Ref. No. Part No. Part Name & Description Remarks IC451 LA7837 IC, LINEAR IC501 TLP621GR IC, LINEAR IC501 0N3131-R IC, LINEAR IC501 0N3131-R.KT IC, LINEAR IC1001 0N3131-R.KT IC, LINEAR IC1001 0N3131-S.KT IC, LINEAR IC2601 AN3808K IC, LINEAR IC3001 AN3479FBP-A IC, LINEAR IC3201 MN3885S IC, LINEAR...
  • Page 88 Ref. No. Part No. Part Name & Description Remarks Q801 2SC2785(TH) TRANSISTOR SI NPN Q801 2SC2785(TJ) TRANSISTOR SI NPN Q801 2SC2785(TK) TRANSISTOR SI NPN Q801 2SC3311A(Q,R,S) TRANSISTOR SI NPN Q801 2SC945A(TPA) TRANSISTOR SI NPN Q801 2SC945A(TQA) TRANSISTOR SI NPN Q1001 2SC4533LP.KT TRANSISTOR SI NPN Q1001...
  • Page 89 Ref. No. Part No. Part Name & Description Remarks Q6010 VEKS5707 PHOTO SENSOR UNIT DIODES Ref. No. Part No. Part Name & Description Remarks D401 ERB12-01V DIODE SI D401 ERB12-01 DIODE SI D401 ERB12-01RKV1 DIODE SI D502 MA165 DIODE SI D502 1SS119 DIODE SI...
  • Page 90 Ref. No. Part No. Part Name & Description Remarks D881 ERZV10V361CS SURGE ABSORBER D882 ERZV10V361CS SURGE ABSORBER D1001 DB105G DIODE SI D1001 S1NB60-4101 DIODE SI D1001 S1WBA60 DIODE SI D1002 ERA18-04 DIODE SI D1002 EG01 DIODE SI D1003 ERA18-04 DIODE SI D1005 ERA18-04 DIODE SI...
  • Page 91 Ref. No. Part No. Part Name & Description Remarks D6302 SLP413C81HAB LIGHT EMITTING DIODE ORANGE D6303 SLP313C81HAB LIGHT EMITTING DIODE GREEN RESISTORS...
  • Page 92 Ref. No. Part No. Part Name & Description Remarks R401 ERDS2TJ181T CARBON 1/4W 180 R402 ERDS2TJ333T CARBON 1/4W 33K R405 ERG2SJ561H METAL OXIDE 2W 560 R409 ERJ6GEYJ273V MGF CHIP 1/10W 27K R410 ERDS2TJ472 CARBON 1/4W 4.7K R411 ERDS2TJ104 CARBON 1/4W 100K R413 ERJ6GEYJ103V MGF CHIP 1/10W 10K R414...
  • Page 93 Ref. No. Part No. Part Name & Description Remarks R542 ERDS2TJ103 CARBON 1/4W 10K R543 ERDS2TJ472 CARBON 1/4W 4.7K R545 ERDS2TJ331 CARBON 1/4W 330 R546 ERDS2TJ103 CARBON 1/4W 10K R547 ERJ6GEYJ153V MGF CHIP 1/10W 15K R548 ERDS2TJ104 CARBON 1/4W 100K R552 ERDS2TJ103 CARBON 1/4W 10K...
  • Page 94 Ref. No. Part No. Part Name & Description Remarks R1022 ERJ6GEYJ221V MGF CHIP 1/10W 220 R1025 VRESE2TJ150T CARBON 1/2W 15 R1051 ERJ6GEYJ122V MGF CHIP 1/10W 1.2K R1052 ERDS2TJ153 CARBON 1/4W 15K R1053 ERDS2TJ153 CARBON 1/4W 15K R1057 ERDS2TJ331 CARBON 1/4W 330 R1058 ERJ6GEYJ104V MGF CHIP 1/10W 100K R1076...
  • Page 95 Ref. No. Part No. Part Name & Description Remarks R4014 ERJ6GEYJ472V MGF CHIP 1/10W 4.7K R4015 ERJ6GEYJ222V MGF CHIP 1/10W 2.2K R4018 ERJ6GEYJ682V MGF CHIP 1/10W 6.8K ( A ) R4018 ERJ6GEYJ123V MGF CHIP 1/10W 12K ( B ) R4021 ERJ6GEYJ473V MGF CHIP 1/10W 47K R4051 ERJ6GEYJ393V MGF CHIP 1/10W 39K...
  • Page 96 Ref. No. Part No. Part Name & Description Remarks R5510 ERJ6GEYJ101V MGF CHIP 1/10W 100 R5511 ERJ6GEYJ222V MGF CHIP 1/10W 2.2K R5512 ERDS2TJ151 CARBON 1/4W 150 R5513 ERJ6GEYJ101V MGF CHIP 1/10W 100 R5515 ERJ6GEYJ332V MGF CHIP 1/10W 3.3K R5601 ERJ6GEYJ562V MGF CHIP 1/10W 5.6K R5604 ERJ6GEYJ332V MGF CHIP 1/10W 3.3K R5611...
  • Page 97 Ref. No. Part No. Part Name & Description Remarks R6071 ERJ6GEYJ101V MGF CHIP 1/10W 100 R6072 ERJ6GEYJ101V MGF CHIP 1/10W 100 R6073 ERJ6GEYJ103V MGF CHIP 1/10W 10K R6075 ERJ6GEYJ103V MGF CHIP 1/10W 10K R6085 ERJ6GEYJ103V MGF CHIP 1/10W 10K R6086 ERJ6GEYJ473V MGF CHIP 1/10W 47K R6088 ERJ6GEYJ102V MGF CHIP 1/10W 1K...
  • Page 98 Ref. No. Part No. Part Name & Description Remarks R6160 ERJ6GEYJ562V MGF CHIP 1/10W 5.6K R6161 ERJ6GEYJ562V MGF CHIP 1/10W 5.6K R6162 ERJ6GEYJ562V MGF CHIP 1/10W 5.6K R6163 ERJ6GEYJ562V MGF CHIP 1/10W 5.6K R6169 ERJ6GEYJ472V MGF CHIP 1/10W 4.7K R6170 ERJ6GEYJ472V MGF CHIP 1/10W 4.7K R6171 ERJ6GEYJ472V MGF CHIP 1/10W 4.7K...
  • Page 99 Ref. No. Part No. Part Name & Description Remarks C401 ECEA1HGE2R2 ELECTROLYTIC 50V 2.2UF C402 ECA1CM471B ELECTROLYTIC 16V 470UF C408 ECA1HGE010KB ELECTROLYTIC 50V 1UF C409 ECA1VM101B ELECTROLYTIC 35V 100UF C413 ECQB1H104KF POLYESTER 50V 0.1UF C414 ECA1EM102E ELECTROLYTIC 25V 1000UF C418 ECA1VM221B ELECTROLYTIC 35V 220UF C458...
  • Page 100 Ref. No. Part No. Part Name & Description Remarks C810 ECKETS221MB CERAMIC 125V 220PF C810 VCKSEJD221KW CERAMIC 125V 220PF C810 VCKSELD221KW CERAMIC 125V 220PF C810 VCKSHJD221KW CERAMIC 125V 220PF C810 VCKSHLD221KW CERAMIC 125V 220PF C810 VCKSTJG221KW CERAMIC 250V 220PF C810 VCKSTLG221KW CERAMIC 250V 220PF C810 VCKSUJD221KW CERAMIC 125V 220PF...
  • Page 101 Ref. No. Part No. Part Name & Description Remarks C1003 VCKSU5D222MX CERAMIC 125V 2200PF C1004 ECEA2DU121YE ELECTROLYTIC 200V 120UF C1005 ECA2DHG4R7B ELECTROLYTIC 200V 4.7UF C1006 ECKR2H221KB5 CERAMIC 500V 220PF C1007 ECUV1C224KBN C CHIP 16V 0.22UF C1009 VCYSBRE183KX CERAMIC 25V 0.018UF C1010 ECUV1H101JCN C CHIP 50V 100PF C1011...
  • Page 103 Ref. No. Part No. Part Name & Description Remarks C1085 VCKST5D152MX CERAMIC 250V 1500PF C1085 VCKSU4D152MX CERAMIC 250V 1500PF C1085 VCKSU5D152MX CERAMIC 250V 1500PF C2601 ECEA1EKA4R7 ELECTROLYTIC 25V 4.7UF C2602 ECEA1EKA4R7 ELECTROLYTIC 25V 4.7UF C2603 ECEA1EKA4R7 ELECTROLYTIC 25V 4.7UF C2604 ECUV1E104KBN C CHIP 25V 0.1UF C2605 ECUV1E104KBN C CHIP 25V 0.1UF...
  • Page 104 Ref. No. Part No. Part Name & Description Remarks C3058 ECUV1H103ZFN C CHIP 50V 0.01UF C3060 ECEA1CKA100 ELECTROLYTIC 16V 10UF C3081 ERJ6GEY0R00V MGF CHIP 1/10W 0 C3082 ECUV1H332KBN C CHIP 50V 3300PF C3231 ECEA1HKA010 ELECTROLYTIC 50V 1UF C3232 ECUV1H102KBN C CHIP 50V 1000PF C3234 ECEA0JKA470 ELECTROLYTIC 6.3V 47UF...
  • Page 105 Ref. No. Part No. Part Name & Description Remarks C5506 ECUV1H103ZFN C CHIP 50V 0.01UF C5507 ECEA1CKA100 ELECTROLYTIC 16V 10UF C5508 ECUV1H221JSN C CHIP 50V 220PF C5510 ECEA1HKA010 ELECTROLYTIC 50V 1UF C5511 ECUV1E333KBN C CHIP 25V 0.033UF C5516 ECUV1E333KBN C CHIP 25V 0.033UF C5601 ECUV1H103ZFN C CHIP 50V 0.01UF C5602...

  • Page 106: Crystal Oscillator

    Ref. No. Part No. Part Name & Description Remarks C6406 ECEA1HKS010 ELECTROLYTIC 50V 1UF C6408 ECUV1H222KBN C CHIP 50V 2200PF C6410 ECUV1H103KBN C CHIP 50V 0.01UF C7002 ECUV1H102KBN C CHIP 50V 1000PF C7006 ECA0JM102B ELECTROLYTIC 6.3V 1000UF C7007 ECUV1H102KBN C CHIP 50V 1000PF C7008 ECUV1H103ZFN C CHIP 50V 0.01UF C7010...

  • Page 107: Pin Headers

    Ref. No. Part No. Part Name & Description Remarks X5501 CSB503F38 CRYSTAL OSCILLATOR X5601 VSXS0190-TB CRYSTAL OSCILLATOR X6001 VSXS0784 CRYSTAL OSCILLATOR PIN HEADERS Ref. No. Part No. Part Name & Description Remarks P801 VEKS5815 CONNECTOR CABLE W/PLUG,AC120V P803 LSJP0814 CONNECTOR 2P P805 VEKS5730 CONNECTOR ASS'Y...
  • Page 108 Ref. No. Part No. Part Name & Description Remarks RL801 LSSY0004 RELAY RL801 LSSY0003 RELAY RL801 TSEH0005 RELAY,120V RL801 TSEH0013 RELAY RL801 TSEH1860-1 RELAY RL801 TSEH8007 RELAY,120V TRANSFORMER Ref. No. Part No. Part Name & Description Remarks T501 ETH19Y70AY TRANSFORMER T502 ETE16Z37AY TRANSFORMER...

  • Page 109: Head Amp C.b.a

    CAPACITORS Ref. No. Part No. Part Name & Description Remarks C2504 ECUV1H103ZFN C CHIP 50V 0.01UF C2506 ECUV1H103ZFN C CHIP 50V 0.01UF C2507 ECUV1H103ZFN C CHIP 50V 0.01UF C2508 ECUV1E104KBN C CHIP 25V 0.1UF C2509 ECUV1E104KBN C CHIP 25V 0.1UF C2510 ECUV1E104KBN C CHIP 25V 0.1UF C2511...
  • Page 110 Ref. No. Part No. Part Name & Description Remarks C3504 ECUV1H103ZFN C CHIP 50V 0.01UF C3505 ECEA1CKA470 ELECTROLYTIC 16V 47UF C3506 ECUV1E104ZFN C CHIP 25V 0.1UF C3508 ECUV1E104ZFN C CHIP 25V 0.1UF C3511 ECUV1E104ZFN C CHIP 25V 0.1UF C3512 ECUV1E104ZFN C CHIP 25V 0.1UF C3513 ECUV1E104ZFN C CHIP 25V 0.1UF C3528...
  • Page 111 Ref. No. Part No. Part Name & Description Remarks C3504 ECUV1H103ZFN C CHIP 50V 0.01UF C3505 ECEA1CKA470 ELECTROLYTIC 16V 47UF C3506 ECUV1E104ZFN C CHIP 25V 0.1UF C3507 ECUV1H102KBN C CHIP 50V 1000PF C3508 ECUV1E104ZFN C CHIP 25V 0.1UF C3511 ECUV1E104ZFN C CHIP 25V 0.1UF C3512 ECUV1E104ZFN C CHIP 25V 0.1UF C3513...
  • Page 112 Ref. No. Part No. Part Name & Description Remarks R351 ERG2ANJ153H METAL OXIDE 2W 15K R352 ERG2ANJ153H METAL OXIDE 2W 15K R353 ERG2ANJ153H METAL OXIDE 2W 15K R354 ERD25TJ272 CARBON 1/4W 2.7K R355 ERD25TJ272 CARBON 1/4W 2.7K R356 ERD25TJ272 CARBON 1/4W 2.7K R357 ERDS2TJ332 CARBON 1/4W 3.3K...
  • Page 113 Ref. No. Part No. Part Name & Description Remarks R801 ERF5ZKR82 W FLMPRF 5W 0.82 R802 ERDS1FPJ103V CARBON 1/2W 10K R802 ERDS1FJ103P CARBON 1/2W 10K R803 ERF10ZK8R2S W FLMPRF 10W 8.2 R804 ERF20ZJ131 W FLMPRF 20W 130 R805 ERDS2TJ104 CARBON 1/4W 100K R806 ERQ14AJ470P FUSE 1/4W 47...
  • Page 114 HEAD AMP C.B.A. VEPS5042A (B) C3504 C3541 HEAD AMP CIRCUIT R3502 L3501 C3508 C3505 C3506 C3509 C3516 R3503 C3520 IC3501 P4091 R3504 C3524 C3529 R3505 R3506 C3518 C3517 L3504 R3507 L3505 L3502 TP3501 L3503 P3503 P3502 P2601 P3501 VJBS5042 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION.
  • Page 115 CRT C.B.A. LRP63005F CAUTION: WHEN SERVICING THIS C.B.A., AVOID TOUCHING HIGH VOLTAGE COMPONENTS. TP49 R351 R353 Q351 TP50 R352 R354 Q353 R356 R366 TP47 H.V. C354 DANGER P356 P355 P354 C356 R367 P352 Q352 P351 P353 R357 D351 LRP63005 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION.
  • Page 116 TV POWER C.B.A. LRP63017A HOT CIRCUIT. BE CAREFUL AND USE AN ISOLATION TRANSFORMER WHEN SERVICING. TP892 TP891 TP896 L802 R803 ZP801 ZP802 R801 ZP803 TP893 R802 R806 IC801 C806 R807 CAUTION R813 LRP63017 HOT CIRCUIT Do not touch! IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED BY THE SIGN HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY.
  • Page 117 1. Important safety notice 3. Parts enclosed in dashed lines marked "Z" are not used Components identified by the sign have special in any models included in this service manual. characteristics important for safety. When replacing any Example: of these components. Use only the specified parts. C3010 0.01 2.
  • Page 118 NOTE: COMPARISON CHART MAIN I (SYSTEM CONTROL/SERVO/CCV/OSD/OPERATION/CYLINDER DRIVE) SCHEMATIC DIAGRAM OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK CAPSTAN SERVO CYLINDER SERVO PVQ-2511 TP6009 TP6099 PV-C2541 POWER DOWN(L) TO MAIN IV Not Used UNSW+5V(SYS.CTL)
  • Page 119 NOTE: COMPARISON CHART MAIN II (SIGNAL PROCESS/AUDIO/DEMODULATOR) SCHEMATIC DIAGRAM OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 JK4701 Not Used VIDEO AUDIO(L) PB AUDIO SIGNAL REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL I2C SERIAL DATA...
  • Page 120 IC3001 VIDEO/AUDIO PROCESS IC-DETAIL BLOCK DIAGRAM, AN3479FBP-A REC VIDEO SIGNAL PB VIDEO SIGNAL REC AUDIO SIGNAL PB AUDIO SIGNAL VREG TUNER I C BUS COMPOSITE LINE2 LINE1 BURST 3.58MHz CHROMA UP/DOWN PHASE COMPONENT COMPEN- AGC DET COMPONENT COLOR SATOR KILLER ARTIFICIAL Y/C MIX 2FSC...

  • Page 121: Main Iii (Tv Y/C Process) Schematic Diagram

    IMPORTANT SAFETY NOTICE: NOTE: COMPARISON CHART MAIN III (TV Y/C PROCESS) SCHEMATIC DIAGRAM OF MODELS & MARKS COMPONENTS IDENTIFIED BY THE SIGN HAVE FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY. REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK WHEN REPLACING ANY OF THESE COMPONENTS,...
  • Page 122 IC5301 LUMINANCE/CHROMINANCE PROCESS IC-DETAIL BLOCK DIAGRAM, AN5367FB REC VIDEO SIGNAL PB VIDEO SIGNAL S P O T K I L L E R B L A C K L E V E L D E T E C T O R D E T E C T O R A C C A C C...
  • Page 123 NOTE: COMPARISON CHART MAIN IV (POWER SUPPLY) SCHEMATIC DIAGRAM OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 Not Used CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, IMPORTANT SAFETY NOTICE: REPLACE ONLY WITH THE SAME TYPE 4A 125V FUSE.
  • Page 124 NOTE: COMPARISON CHART MAIN V (TV) SCHEMATIC DIAGRAM OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 Not Used IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED BY THE SIGN HAVE SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY.

  • Page 125: Capstan Stator Schematic Diagram

    CAPSTAN STATOR SCHEMATIC DIAGRAM NOTE: COMPARISON CHART OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 Not Used NOTE: WHEN INSTALLING THE IC2501(AN3845SC) OR CAPSTAN STATOR C.B.A., BE SURE TO APPLY SILICON GREASE(VFK1301).
  • Page 126 NOTE: COMPARISON CHART HEAD AMP SCHEMATIC DIAGRAM (A) OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 Not Used AUDIO CONTROL HEAD P.C.B. REC AUDIO SIGNAL PB AUDIO SIGNAL REC VIDEO SIGNAL PB VIDEO SIGNAL AUDIO HEAD...
  • Page 127 NOTE: COMPARISON CHART HEAD AMP SCHEMATIC DIAGRAM (B) OF MODELS & MARKS FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK PVQ-2511 PV-C2541 Not Used AUDIO CONTROL HEAD P.C.B. REC AUDIO SIGNAL PB AUDIO SIGNAL REC VIDEO SIGNAL PB VIDEO SIGNAL AUDIO HEAD...

  • Page 128: Crt Schematic Diagram

    IMPORTANT SAFETY NOTICE: NOTE: COMPARISON CHART CRT SCHEMATIC DIAGRAM OF MODELS & MARKS COMPONENTS IDENTIFIED BY THE SIGN HAVE FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY. REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK WHEN REPLACING ANY OF THESE COMPONENTS, PVQ-2511 USE ONLY THE SPECIFIED PARTS.

  • Page 129: Interconnection Schematic Diagram

    IMPORTANT SAFETY NOTICE: NOTE: COMPARISON CHART INTERCONNECTION SCHEMATIC DIAGRAM OF MODELS & MARKS COMPONENTS IDENTIFIED BY THE SIGN HAVE FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, SPECIAL CHARACTERISTICS IMPORTANT FOR SAFETY. REFER TO BEGINNING OF SCHEMATIC SECTION. MODEL MARK WHEN REPLACING ANY OF THESE COMPONENTS, PVQ-2511 USE ONLY THE SPECIFIED PARTS.
  • Page 130 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. TV/VCR MAIN C.B.A. (POWER SUPPLY/VIDEO/AUDIO SECTION) MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP...
  • Page 131 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. TV/VCR MAIN C.B.A. (SYSTEM CONTROL/SERVO SECTION) CAPSTAN STATOR C.B.A. MODE PLAY MODE PLAY MODE PLAY MODE PLAY MODE PLAY MODE PLAY MODE PLAY MODE PLAY MODE PLAY PIN NO.
  • Page 132 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. TV POWER HEAD AMP HEAD AMP C.B.A. C.B.A. (A) C.B.A. (B) CRT C.B.A. MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE STOP MODE...
  • Page 133 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. COMPARISON CHART TV/VCR MAIN C.B.A. OF MODELS & MARKS MODEL MARK PVQ-2511 +1.000Vp-p +240mVp-p +100.0mVp-p +0.40Vp-p +1.000Vp-p +4.00Vp-p +4.20Vp-p PV-C2541 PIN 20 OF IC3001 PIN 12 OF IC3001 PIN 71 OF IC3001 TP4002 REC/PB...
  • Page 134 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION. COMPARISON CHART OF MODELS & MARKS HEAD AMP C.B.A. HEAD AMP C.B.A. MODEL MARK CRT C.B.A. PVQ-2511 +4.80Vp-p +4.00Vp-p PV-C2541 +3.00Vp-p +4.00Vp-p +38.50Vp-p +150.0Vp-p +130.0Vp-p CH1 TP3501 CH1 TP3501 REC SLP...

  • Page 135: Power Supply Block Diagram

    POWER SUPPLY BLOCK DIAGRAM MAIN C.B.A. F801 F1001 L803 L1001 T1001 AC CORD 125V/4A 125V/1.6A P803 P801 P1001 D1001 C1011 TP1002 D1005 LINE LINE FULL-WAVE SMOOTHING RECTIFIER UNSW+30V P803 FILTER P802 P1002 FILTER RECTIFIER CIRCUIT C1012, C1013 TP1003 D1006 PR1002 SMOOTHING RECTIFIER UNSW+14V...

  • Page 136: Video Signal Path Block Diagram

    VIDEO SIGNAL PATH BLOCK DIAGRAM REC VIDEO SIGNAL PB VIDEO SIGNAL TV/VCR MAIN C.B.A. HEAD AMP C.B.A. (FOR 4HEAD MODEL) UHF/VHF TUNER/TV DEMODULATOR UNIT IC3501 (HEAD AMP) TP3501 VIDEO LP/SLP P3503 VIDEO SP P3501 L HEAD P3503 VIDEO SP P3503 R HEAD IC3201 (FROM IC6001(110))

  • Page 137: Audio Signal Path Block Diagram

    AUDIO SIGNAL PATH BLOCK DIAGRAM REC AUDIO SIGNAL PB AUDIO SIGNAL TV/VCR MAIN C.B.A. UHF/VHF TUNER/TV DEMODULATOR UNIT AUDIO Q4001 IC3001 (AUDIO PROCESS) Q4002 REC-OFF AUDIO CONTROL HEAD AMP C.B.A. HEAD UNIT (WITH MONAURAL) TUNER Q4003 AUDIO LINE REC-ON P6202 P2601 P4091 P4092...

  • Page 138: System Control Block Diagram

    SYSTEM CONTROL BLOCK DIAGRAM CAPSTAN MOTOR DRIVE C.B.A. TV/VCR MAIN C.B.A. IC2501 (LOADING MOTOR DRIVE) IC6001 (SYSTEM CONTROL MICROCONTROLLER) P2502 P6201 LOADING MOTOR SW6002 (MODE SELECT SWITCH) FORWARD(H) PIN NO. OF IC6001 P2502 P6201 LOADING MOTOR LOADING TP6023 MODE (108) (107) (106) REVERSE(H)

  • Page 139: Servo Block Diagram

    SERVO BLOCK DIAGRAM AUDIO CONTROL HEAD UNIT HEAD AMP C.B.A. TV/VCR MAIN C.B.A. IC6001 (SERVO MICROCONTROLLER) TP6003 P4092 P4091 P2601 P6202 (FROM IC3001(40)) CONTROL REC CTL ENVELOPE ENVELOPE HEAD P4092 P4091 P2601 P6202 DETECTOR VOLTAGE PB-ON POSITIVE PB CTL SLICER V-LOCK CAPSTAN STATOR C.B.A.

  • Page 140: Tv / Y/C Process Block Diagram

    TV / Y/C PROCESS BLOCK DIAGRAM VIDEO SIGNAL TV/VCR MAIN C.B.A. CRT C.B.A. Q5601 NOT USED BUFFER X5601 (FROM IC6001(29)) (TO IC3001(82)) TP47 IC5301 3.58MHz OSC 3.58MHz 3.58MHz (LUMINANCE/CHROMINANCE PROCESS) D5602 (FROM IC3001(25)) PB VIDEO RGB AMP Q5301 (FROM VIDEO IN) LINE LINE VIDEO CHROMINANCE...
  • Page 141 COMPARISON CHART TV/VCR MAIN C.B.A. VEPS3102A (A) / VEPS3102B (B) OF MODELS & MARKS MODEL MARK ON TIMER PROG TIMER D6301 D6302 D6303 D4712 OPERATION CIRCUIT PVQ-2511 C6302 INFRARED D4711 R6302 R6315 R6301 R6304 R6303 RECEIVER R6307 AUDIO AMP CIRCUIT SW6311 SW6302 SW6307...
  • Page 142 CAPSTAN STATOR C.B.A. VEMS0342 C2508 C2506 P2503 C2504 C2509 IC2501 C2520 C2505 C2523 Q2503 R2501 R2502 CAPSTAN IC2505 COIL C2524 CAPSTAN C2521 CAPSTAN COIL COIL Q2501 CAPSTAN CAPSTAN C2511 COIL COIL P2502 C2522 CAPSTAN COIL C2525 Q2502 VJBS2007 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION.
  • Page 143 HEAD AMP C.B.A. VEPS5043A (A) C3504 C3541 HEAD AMP CIRCUIT L3501 C3505 C3509 P4091 C3506 C3511 IC3501 C3512 C3528 C3530 R3507 C3529 C3518 L3502 L3503 TP3501 P3502 P3503 P2601 C3501 P3501 VJBS5043 NOTE: FOR SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES, REFER TO BEGINNING OF SCHEMATIC SECTION.

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