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Panasonic AJ-HVF27P Service Manual

2'' electronic hd viewfinder
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Sec. 1 Operating Instructions
Sec. 2 Disassembly Procedures
Sec. 3 Electrical Adjustment
Sec. 4 Block Diagram, Schematic Diagrams
and Circuit Board Diagrams
Sec. 5 Exploded Views & Replacement Parts List
®
2" Electronic HD Viewfinder
AJ-HVF27P
© 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation of law.
ORDER NO. BSD0103M005
D26

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Summary of Contents for Panasonic AJ-HVF27P

  • Page 1 ORDER NO. BSD0103M005 2" Electronic HD Viewfinder Sec. 1 Operating Instructions AJ-HVF27P Sec. 2 Disassembly Procedures Sec. 3 Electrical Adjustment Sec. 4 Block Diagram, Schematic Diagrams and Circuit Board Diagrams Sec. 5 Exploded Views & Replacement Parts List © 2001 Matsushita Electric Industrial Co., Ltd. All rights reserved.

  • Page 2: Table Of Contents

    WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.

  • Page 3: Sefety Precautions

    SAFETY PRECAUTIONS GENERAL GUIDELINES ELECTROSTATICALLY SENSITIVE (ES) DEVICES 1. When servicing, observe the original lead dress. If a Some semiconductor (solid state) devices can be damaged short circuit is found, replace all parts which have been easily by static electricity. Such components commonly are over-heated or damaged by the short circuit.
  • Page 4 WARNING: WARNING: WARNING: WARNING: TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
  • Page 5 ® FCD0103BAOE290P...
  • Page 6 DISASSEMBLY PROCEDURES CONTENTS 1. Removal of Mounting Unit..............DIS-1 2. Removal of Microphone Holder ............DIS-1 3. Removal of Eyepiece Rubber ............DIS-1 4. Removal of Eyepiece Unit..............DIS-2 5. Removal of Upper Cover ..............DIS-2 6. Removal of CRT Unit............... DIS-2 7.

  • Page 7: Removal Of Mounting Unit

    Disassembly Procedure 1. Removal of Mounting Unit 3. Removal of Eyepiece Rubber 1. Unscrew 2 screws (A) so that the mounting unit can 1. Tear off the points of Eyepiece rubber (A) as be removed. shown below. SCREWS (A) 4. Removal of Eyepiece Unit 1.

  • Page 8: Removal Of Upper Cover

    5. Removal of Upper Cover 4. Unscrew 3 screws (E), (F) so that the CRT Unit 1. Loosen 3 hex. screws (D) so that the Upper cover can be removed from LENS pipe. can be removed. SCREW (E) Hex. Screws (D) SCREW (F) Hex.

  • Page 9: Removal Of Guard Bar

    7. Removal of SUB1 Board 9. Removal of MAIN Board 1. Disconnect CN101 on SUB1 Board. 1. Disconnect CN1 on MAIN Board so that the EVF 2. Unscrew 2 screws (G) so that the SUB 1 Board can cable can be removed. be removed.

  • Page 10: Removal Of Led Board

    11. Removal of LED Board NOTE: For assembling the parts, take reverse steps of each disassemble procedure. 1. Disconnect the connector (A) on Indicate plate. 2. Unscrew 4 screws (J) so that the CRT Assembly can be removed. MEMO SCREW SCREW CONNECTOR (A) 3.
  • Page 11 ELECTRICAL ADJUSTMENT CONTENTS 1. Preparation ......................ELE-1 1-1. Recommended Measurement Equipment (M.EQ) & Servicing Fixtures ..ELE-1 1-2. Preparation for adjustment ................ELE-1 2. Adjustment Procedures..................ELE-2 2-1. Power Supply Voltage Adjustment ..............ELE-2 2-2. V Hold Adjustment..................ELE-2 2-3. H Hold Adjustment ..................ELE-2 2-4. H Duty Adjustment ..................ELE-2 2-5.

  • Page 12: Electrical Adjustment Procedures

    Electrical Adjustment Procedures 1. Preparation 1-1. Recommended Measurement Equipment (M.EQ) & Servicing Fixtures NAME MODEL NO. (Example) REMARK HD Camera (-recorder) AJ-HDC27AP EVF Connector 20pin type, With TV LENS Digital Volt Meter (D.V.M) Frequency Counter Oscilloscope Charts specification as follows Resolution Chart *16:9 aspect ratio.

  • Page 13: Adjustment Procedures

    2. Adjustment procedures 2-1. Power Supply Voltage Adjustment Board MAIN BOARD, SUB2 BOARD Spec 9.5V+/-0.05V IC201 4pin [SUB2 BOARD] Adjust RV401 (+9.5V ADJ.) [MAIN BOARD] M.EQ D.V.M NOTE: If the duty (T) is adjusted to 2.5us or less, High voltage protection circuits may work.

  • Page 14: Focus Adjustment

    2-6. Focus Adjustment 2-8. Heater Voltage Adjustment Board SUB1 BOARD Board MAIN BOARD Spec 6.0kV+/-0.1kV Spec 630mV+/-10mV (DC) TP22-TP23 Chart Resolution chart (CN502 3pin-4pin) HV Connector (FBT side) Adjust RV501 (HEATER V ADJ.) Adjust RV109 (FOCUS) [SUB1 BOARD] M.EQ D.V.M M.EQ D.V.M (Use EHV probe) 1.

  • Page 15: Linearity Adjustment

    1. Set the Camera internal color bar to ON. 2-10. V Linearity Adjustment 2. Set the BRIGHT, CONTRAST and PEAKING knobs to Minimum level. Board SUB1 BOARD 3. Adjust RV205 so that the pedestal portion is All circles at four corners of resolution changed from slightly light to dark (just black out).
  • Page 16 BLOCK DIAGRAM SCHEMATIC DIAGRAMS CIRCUIT BOARD DIAGRAMS CONTENTS BLOCK DIAGRAM OVER ALL BLOCK DIAGRAM....................BLK-1 SCHEMATIC DIAGRAMS SUB 1 SCHEMATIC DIAGRAM ..................SCM001 SUB 2 SCHEMATIC DIAGRAM ..................SCM002 SUB 3 SCHEMATIC DIAGRAM ..................SCM003 LED SCHEMATIC DIAGRAM .....................SCM004 SERIAL DATA CONV. (MAIN 1/3) SCHEMATIC DIAGRAM..........SCM005 POWER (MAIN 2/3) SCHEMATIC DIAGRAM ..............SCM006 HORIZONTAL DEFLECTION (MAIN 3/3) SCHEMATIC DIAGRAM ........SCM007 CIRCUIT BOARD DIAGRAMS...

  • Page 17: Over All Block Diagram

    OVER ALL BLOCK DIAGRAM MAIN P.C.Board HV CONNECTOR MAIN P.C.Board CN001 UNREG IN (11-17V) 1 TP21 CN502 UNREG IN (11-17V) 2 Q402B G2 (SCREEN) IC 503 Brown SUB1 (H,V DEFLECTION) P.C.Board TP22 +H (HEATER) CN101 B CN101 A Blue HEATER -H (HEATER) FBP TRG FBP TRG...
  • Page 18 CN102 IL-S-2P-S2T2-EF +V DEF -V DEF CN101B +9.5V 15PSL-JE +9.5V V-DRIVE VIDEO R123 C121 VIDEO GND R124 100u 2125 RV105:V-HOLD 4.7k R141 SHUTDOWN(1) 1608 1608 HD(+) RV103:H-HOLD RV104:H-DUTY +9.5V R125 Q105A V CLAMP(+) 3.3k XN4601 1608 C122 FBP TRG Q101 R111 R101 C3661...
  • Page 19 LED201 LED202 R252 CL200HRCTUL CL200HRCTUL 1608 C201 C202 100u 100u CN201B L201 RV206:BRIGHTNESS SFR12R-1HS 220u RV201:CONTRAST +9.5V +9.5V 30nS DELEY VIDEO IN DL201 V-GND TG335ENK6893 V CLP(+) C205 C BLK2(+) TALLY OUT R253 R213 PEAK CTL C203 R201 C211 R217 C221 100u 1608...
  • Page 20 CN261 MF-3-1-4P +60V +9.5V V CLP(+) C261 R263 R269 R270 V-GND 0.1u 3.9k 100V 6432 1608 1608 3225 R268 Q265 D262 C4104 RLS245 1608 Q264 A1580 C264 R272 0.1u R264 R266 R277 100V TP261 1608 CN263 3225 HK-3-S 1608 1608 2125 S2B-ZR-SM3A G1 OUT...
  • Page 21 CN41 IL-Y-10P-S15T2-EF REC / Tally EFFECT BATT G TALLY VTR SAVE Spear 1 Spear 2 REC/Tally CL-150UR-CD-T EFFECT CL-150D-CD-T BATT CL-150UR-CD-T CL-150UR-CD-T G TALLY CL-150PG-CD-T VTR SAVE CL-150D-CD-T SPEAR1 SPEAR2 COMPONENT 01/01 NAME DRAWING NO. CIRCUIT BOARD NO. VEP20783 SCM004...
  • Page 22 Q301 C4081 +9.5V IN R301 R322 IC301 IC303A CN301 TC74HC164AF TC74HC08AF IL-Y-10P-S15T2-EF C302 C301 R303 R320 R329 R302 4.7K TA-B R321 IC303D REC/Tally TA-C TC74HC08AF IC303C 3.3K TC74HC08AF EFFECT IC304A TC7W04F R323 BATT IC303B Q303 C4081 TC74HC08AF G TALLY IC304B SP DATA Q302 TC7W04F...
  • Page 23 Vref C406 0.1u R406 1608 Q402A SI4953DY UNREG +9.5V OUT L403 R401 L401 R407 100u 160k R450.800 CF8-101 C401 C404 Q403A CF8-560 1608 R403 330u XN4601 3.6K R405 2125 1608 R423 C407 150u RV401 D401 MVR22 R404 SC802-04 Q403B 4.7kB SHUTDOWN(2) C403 R408...
  • Page 24 FBP TRG R527 100k 1608 IMPORTANT SAFETY NOTICE: COMPONENTS IDENTIFIED WITH THE MARK HAVE THE SPECIAL H-DEF GND CHARACTERISTICS FOR SAFETY. +H DEF WHEN REPLACING ANY OF THESE COMPONENTS. USE ONLY THE -H DEF SAME TYPE. CN501 IL-S-3P-S2T2-EF R526 2125 LC37-32 C517 +9.5V...
  • Page 25 MAIN P.C.BOARD (VEP20859B) SUB 1 P.C.BOARD (VEP20860B) COMPONENT SIDE COMPONENT SIDE CN001 CN101B CN101A CN102 CN301 IC101 CN501 IC102 CN502 IC103 IC301 IC105 IC302 IC106 IC303 IC107 IC304 IC109 IC401 IC111 IC501 IC112 IC502 IC113 IC503 IC114 IC504 IC115 Q402 Q101 Q403 Q105...

  • Page 26: Section 5. Exploded Views & Replacement Parts List

    EXPLODED VIEWS & REPLACEMENT PARTS LIST Note: 1. *Be sure to make your orders of replacement parts according to this list. 2. Unless otherwise specified, all resistors are in OHMS, K=1,000 OHMS, all capacitors are in MICROFARADS (µF), P=µµF. 3. The P.C. Board untils marked with " " shown below the main assembled parts. 4.
  • Page 27 MECHANICAL PARTS ASSEMBLY Components identified with the mark ! have the special characteristics for safety. When replacing any of these components, use only the same type. 53 54 PRT-1...
  • Page 28 MECHANICAL PARTS ASSEMBLY Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks VYK9294 TOP CASE ASS'Y VYK9295 BOTTOM CASE ASS'Y VYC0815 MIC HOLDER ASS'Y VMC1513 PLATE SPRING VKH0389 GUARD BAR VMG1217 CASE PACKING (1) VMG1218 CASE PACKING (2) VGU8170...
  • Page 29 PACKING PARTS ASSEMBLY PACKING PARTS ASSEMBLY Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks VQT9245 OPERATING INSTRUCTION VPG0A71 PACKING CASE VPN5247 CUSHION A VPN5248 CUSHION B VPN5249 CUSHION C VPN5250 CUSHION D VPN5251 CUSHION E VPN5252...
  • Page 30 ELECTRICAL REPLACEMENT PARTS LIST Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks IC301 TC74HC164AF VEP20859B MAIN P.C.BOARD 1 (RTL) IC302 M66311FP IC303 TC74HC08AF VEP20860B SUB1 P.C.BOARD 1 (RTL) IC304 TC7W04F IC401 BA9743AFV VEP20861B SUB2 P.C.BOARD 1 (RTL)
  • Page 31 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks R527,28 ERJ3RBD104 M.RESISTOR CH 1/16W 100K IC103 TA78L05F R529,30 ERJ3RBD223 M.RESISTOR CH 1/16W 22K IC104 GS49811KA R531 ERJ3RBD101 M.RESISTOR CH 1/16W 100 IC105 TC7W02FU R532 ERJ3RBD102 M.RESISTOR CH 1/16W...
  • Page 32 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks R175 ERJ3RED204 M.RESISTOR CH 1/16W 200K R216 ERJ3RED510 M.RESISTOR CH 1/16W R176 ERJ3RBD332 M.RESISTOR CH 1/16W 3.3K R217 ERJ3RBD102 M.RESISTOR CH 1/16W R177 ERJ3RBD393 M.RESISTOR CH 1/16W 39K R218,19 ERJ3RBD151...
  • Page 33 Ref.No. Part No. Part Name & Description Remarks Ref.No. Part No. Part Name & Description Remarks R272,73 ERJ3RED330 M.RESISTOR CH 1/16W R274 ERJ6GEYJ106 M.RESISTOR CH 1/10W 10M R275 ERJ3RBD511 M.RESISTOR CH 1/16W 510 R276 ERJ3RED514 M.RESISTOR CH 1/16W 510K R277 ERJ6GEYG221 M.RESISTOR CH 1/10W 220 VEP20783...
  • Page 34 OPERATING INSTRUCTIONS CONTENTS Parts and Their Functions ..............OPE-1 Adjusting the Viewfinder ..............OPE-2 Mounting the Microphone ..............OPE-5...
  • Page 35 2˝ Electronic HD View Finder Operating Instructions...
  • Page 36 WARNING: TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE. Operating precaution Operation near any appliance which generates strong magnetic fields may give rise to noise in the video and audio signals. If this should be the case, deal with the situation by, for instance, moving the source of the magnetic fields away from the unit before operation.
  • Page 37 Contents Features ............E– 3 Specifications .

  • Page 38: Features

    3.8 W (AJ-HVF27P) Picture tube: 2-inch high-resolution monochrome picture tube Image system: 1080 lines, 59.94 Hz (AJ-HVF20P) 720 lines, 59.94 Hz (AJ-HVF27P) External adjustment controls: Controls (BRIGHT, CONTRAST, PEAKING) Switches (TALLY HIGH/OFF/LOW, ZEBRA ON/OFF) Allowable temperature range: 32°F to 104°F (0°C to 40°C)
  • Page 39 Parts and Their Functions ZEBRA (Zebra Pattern) Switch Displays a zebra pattern inside the viewfinder. ON: Displays a zebra pattern. OFF: No zebra pattern displayed. The details of the display, such as the type of zebra pattern, will differ depending on the camera used with the viewfinder.

  • Page 40: Parts And Their Functions

    Parts and Their Functions BRIGHT (Brightness) Knob Adjusts the brightness of the screen inside the viewfinder. The setting of this control has no effect on the output signal of the camera. Front Tally Lamp Lights when the VTR is recording and the TALLY switch is set to HIGH or LOW. Also, flashes on and off as a warning indication, in the same manner as the REC lamp, inside the viewfinder.
  • Page 41 Parts and Their Functions Internal LEDs The lamp and picture tube indications will differ depending on the camera used with the viewfinder. Refer to the instruction manual of the camera for details. TALLY / REC BATT SAVE E– 6...

  • Page 42: Adjusting The Viewfinder

    Adjusting the Viewfinder Adjusting the Mounting Height of the Viewfinder The mounting height of the viewfinder can be adjusted using the method described below. Adjust the height of the mounting unit as required. O At the time of shipping, the mounting height is set for use with the AJ-HDC20A and AJ-HDC27A models.

  • Page 43: Mounting The Viewfinder

    Adjusting the Viewfinder Mounting the Viewfinder Confirm that the POWER switch of the camera is “OFF”. Insert the plug into the connection jack of the viewfinder. <Note> Be sure to insert the plug all the way into the connection jack. Push the viewfinder down into place.

  • Page 44: Position Adjustment

    Adjusting the Viewfinder Position Adjustment Lift up the viewfinder forward-backward/left-right position clamp lever to disengage the lock. Lever Viewfinder Loosen the viewfinder forward-backward/left-right position clamp lever. Adjust the position of the viewfinder by moving it forward, backward, left or right. Return the viewfinder forward-backward/left-right position clamp lever to the locked position.

  • Page 45: Diopter Adjustment

    Adjusting the Viewfinder Diopter Adjustment Set the POWER switch of the camera to “ON”. A picture will appear in the viewfinder. Turn the diopter adjustment ring to adjust the diopter so that the viewfinder picture can be clearly seen. Diopter Adjustment Ring Screen Adjustment Adjust the condition of the viewfinder screen.

  • Page 46: Detaching The Eyepiece

    Adjusting the Viewfinder Detaching the Eyepiece If dust has adhered to the CRT screen or mirror, detach the eyepiece and remove it. <Note> Do not wipe the mirror surface under any circumstances as it has been specially treated. Dust which has adhered to the mirror should be blown away with a blower, etc. Eyepiece Alignment marks Turn the lock ring as far as possible in...

  • Page 47: Mounting The Microphone

    Mounting the Microphone Follow the steps below to install the AJ-MC700P microphone kit (sold separately). Open the microphone holder. Viewfinder Microphone holder Mount the microphone. Plug the microphone connector cable into the MIC IN jack. MIC IN jack E– 12...
  • Page 48 DIVISION OF MATSUSHITA ELECTRIC CORPORATION OF AMERICA Executive Office: 3330 Cahuenga Blvd W., Los Angeles, CA 90068 (323) 436-3500 EASTERN ZONE: One Panasonic Way 4E-7, Secaucus, NJ 07094 (201) 348-7621 Southeast Region: 1225 Northbrook Parkway, Ste 1-160, Suwanee, GA 30024 (770) 338-6835 Central Region:...

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