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Hitachi VK-S454 Service Manual

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SERVICE MANUAL
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
COLOR VIDEO CAMERA
January
2001
TK
Digital Media Products Division,Tokai
No. 8101E
V K - S 4 5 4
VK-S454E

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Troubleshooting

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   Summary of Contents for Hitachi VK-S454

  • Page 1

    No. 8101E V K - S 4 5 4 VK-S454E SERVICE MANUAL SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT COLOR VIDEO CAMERA January 2001 Digital Media Products Division,Tokai...

  • Page 2

    Service Manual. The use of a substitute replacement component which does not have the same safety characteristics as the HITACHI recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product safety is continuously under review and new instructions are issued from time to time.

  • Page 3: Circuit Board Diagrams

    Notes When Using Service Manual The following shows the contents to be noted when using service manual: 1. Value units used in parts list 3. Identifications of sides A/B in circuit board diagrams Certain symbols are indicated below for value units of resistors, capacitors and coils in parts list.

  • Page 4: Table Of Contents

    CONTENTS CHAPTER 1 GENERAL INFORMATION 8. Troubleshooting of IR control ....... 3-19 (1) No IR control operation ......... 3-20 SPECIFICATIONS ..........1-1 COMPARISON OF SPECIFICATION ..... 1-2 CHAPTER 4 EXPLODED VIEW COMPARISON OF MAIN CONTROL ICs ....1-2 EXPLODED VIEW ..........4-1 CHAPTER 2 DISASSEMBLY CHAPTER 5 REPLACEMENT DISASSEMBLY PROCEDURE ......

  • Page 5: Chapter 1 General Information

    CHAPTER 1 GENERAL INFORMATION SPECIFICATINOS Note: The specifications are subject to change for improvement without notice. Signal VK-S454: NTSC Format VK-S454E: PAL Format Scanning System 2:1 Interlaced Image Sensor 4.5 mm Dia. (1/4-inch) CCD Image Sensor Number of Effective Pixels VK-S454: 724 (H) ×...

  • Page 6: Comparison Of Specification

    SD RAM µPD456323G5-A10BL-9JH (IC1150) MSM51V18165BSL-6TS-K (IC1122) Inv. TC7SHU04FU (IC1171) TC7SU04F (IC1173) Clock Generator MJU6321P (IC1173) TC7SU04F (IC1174) Digital µP VK-S454 Series µP (IC1201) HD6432237M09TE (IC1201) EEPROM X25097V1-2.7 (IC1250) X25097V1-2.7 (IC1202) Reset Pulse Gen. RN5VD27AA (IC1251) RN5VD27AA (IC1203) TC7S08FU (IC1206) Zoom Motor Drive...

  • Page 7: Chapter 2 Disassembly

    CHAPTER 2 DISASSEMBLY PROCEDURE BRACKET-R DISCONNECT TWO FLAT CABLES (*1) REMOVE SCREW PC CIRCUIT BOARD SP CIRCUIT BOARD REMOVE SCREWS (*2) UNSOLDER FOURTEEN REMOVE POINTS SCREWS RUBBER CRYSTAL CIRCUIT FILTER BOARD LENS BLOCK SENSOR REMOVE SCREW BRACKET REMOVE SCREWS (10) REMOVE THREE SCREWS...

  • Page 8: Chapter 3 Electric Circuit Adjustment

    CHAPTER 3 ELECTRIC CIRCUIT ADJUSTMENT Test Equipment/Jigs Necessary for Adjustment 1.1 List of equipment and jigs DSP Interface Connect Jig DSP-R Jig C12 Light Balancing Filter Adjutsment Floppy No. 7069179 No.7099448 No.7099369 Disk ( *1 ) Personal Computer (PC) Personal Computer Cable *1 : The adjustment floppy disk is not for sale: It will be [Goods on the Market] RS-232C (9 or 25 pins)

  • Page 9: Before Starting Adjustment

    2. Before Starting Adjustment 2.1 Connections for adjustment Connect the video camera to the test equipment and jigs as shown in Fig. 2-1. 2.2 Notes 1) All adjustments are performed using the adjustment program and personal computer (PC). The adjustment program is subject to change without notice for improvements in functions and operability, and the actual instructions on PC screen may be different from those in this manual: If so, follow the instructions on PC screen to proceed with adjustment.

  • Page 10: Setting Test Equipment

    4) Use light box that does not flicker and whose color temperature is controlled, for adjustment. If an inappropriate light box is used, precise adjustment will not be possible, and the adjustment program will not operate normally. 5) Take care with the following when pointing the video camera at a chart (light box): Focus the chart correctly.

  • Page 11: List Of Adjustment Items

    List of Adjustment Items The following table shows the adjustment items, their purposes, and whether or not check is required after replacing major components. The components shown in the table below are the minimum to be checked after replacing major components: If several components have been replaced - or depending on the cause of a defect - more components may need to be checked.

  • Page 12: Starting Adjustment Program (smap)

    Starting Adjustment Program (SMAP) Note: If error message appears during adjustment, refer to “6. Error Messages”. 1) Connect the video camera, DSP-R jig and PC as shown in Fig. 2-1, and supply power to them. (*1) 2) Operate the PC to start MS-DOS . (*2) 3) Make sure that the adjustment floppy disk is write-protected.

  • Page 13: Adjustment Procedure

    Adjustment Procedure The following explains the adjustment procedure using the adjustment program (SMAP), following the order of items on the main menu screen. Refer to “4. Starting Adjustment Program (SMAP)” in advance, start SMAP and display the main menu on PC display. In actual work, it is possible to adjust one item independently.

  • Page 14: Adjustment

    5.3 Adjustment Before starting: 1) Input C to PC on the main menu screen to display the adjustment menu screen. 2) Input to PC the appropriate adjustment number. (*1) *1: Pressing the [Esc] key on the adjustment menu screen will restore the main menu screen. (1) Auto Iris Control Adjustment Incompleted Phenomenon: The picture becomes too bright.

  • Page 15: Chroma Gain Adjustment

    (3) Chroma Gain Adjustment (Figs. 5-1, 5-2, 5-3) Incompleted Phenomenon: Color of the picture is denser than that of the subjuct. Color of the picture is lighter than that of the subject. Equipment: Oscilloscope or Vectorscope Test Point: Video Out (PG1601-6) Condition: Atach a C12 filter Point the at a color bar chart.

  • Page 16: Autofocus

    5.4 Autofocus Before starting adjustment: 1) Input D to PC on the main menu screen to display the AF menu screen. 2) Input the appropriate adjustment number to PC. (*1) *1: Pressing the [Esc] key on the AF menu screen will restore the main menu screen. (1) Zoom/Focus Tracking Adjustment Incompleted Phenomenon: Focus is lost during zooming.

  • Page 17: Check Of Zoom Track

    (3) Check of Zoom Trace Incompleted Phenomenon: Focus is lost during zooming. Condition: Point at the backfocus chart, 1500 ± 5mm away from the lens surface. Light the backfocus chart with 200 - 400 lx. Caution when Adjustment: 1) Measure the distance between the chart and lens surface precisely. 2) Place the chart as parallel as possible to the lens surface.

  • Page 18: Ir Control

    Procedure: 1) Input E to PC on the main menu screen. 2) Follow the instructions on PC display thereafter. 3) The screen for verifying writing of spot noise data will appear: Input Y. (*1) 4) When writing data is complete, the spot noise data write complete screen will appear: Press any key to restore the main menu screen.

  • Page 19: Error Message

    6. Error Message A message may appear while you are adjusting the video camera. If a message appears, refer to the following table and take appropriate corrective action. 6.1 Error Message of Electric Volume and Adjustment ERROR MESSAGE COUNTERMEASURE ERROR OCCURRED. IRIS TROUBLE Check whether or not power is supplied.

  • Page 20: Error Message Of Autofocus

    6.2 Error Message of Autofocus ERROR MESSAGE COUNTERMEASURE ERROR OCCURRED. ZOOM DOES NOT WORK Supply power again and re-adjust. PRESS ANY KEY TIME OUT ERROR ON FOCUS Check the conditions of subject. If this error message appears even when the adjustment is performed 2 or 3 times, the autofocus circuit system is defective.

  • Page 21: Troubleshooting Of Autofocus

    Troubleshooting of Autofocus 3 - 14...

  • Page 22

    3 - 15...

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    3 - 16...

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    3 - 17...

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    3 - 18...

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    3 - 19...

  • Page 27: Troubleshooting Of Ir Control

    8. Troubleshooting of IR control 3 - 20...

  • Page 28: Chapter 4 Exploded View Exploded View

    CHAPTER 4 EXPLODED VIEW PC CIRCUIT BOARD SP CIRCUIT BOARD CSR CIRCUIT BOARD 4 - 1...

  • Page 29: Chapter 5 Replacement Parts List

    CHAPTER 5 REPLACEMENT PARTS LIST 1. MECHANICAL PARTS LIST SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION MECHANISM SECTION JP31901 PWB ASSY PC [For VK-S454] JP31902 PWB ASSY PC [For VK-S454E] DT10392 CRYSTAL NA30812 BRACKET NA19622 BRACKET(L) NA19631 BRACKET KQ10861 LENS ASSY...

  • Page 30: Electrical Parts

    2. ELECTRICAL PARTS LIST SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION C1155 AA00931R CERAMIC CAPACITOR 1.0UF+-10% 10V CAPACITORS C1156 0893193 CERAMIC CHIP 0.01UF+-10% 25V C1157 0893193 CERAMIC CHIP 0.01UF+-10% 25V C1001 0893107 CERAMIC CHIP 5.0PF+-0.25% 50V C1158 0893193 CERAMIC CHIP 0.01UF+-10% 25V C1002 AA00393R CHIP CERAMIC 1.0UF+80-20% 50V...

  • Page 31

    SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION C1357 0893013 CERAMIC CHIP 0.22UF+-10% 16V C1626 AA00381R CERAMIC CHIP 10UF+-10% 6.3V C1358 0893113 CERAMIC CHIP 10PF+-0.5% 50V C1650 0893206 CERAMIC CHIP 680PF +-10% 50V C1359 0893133 CERAMIC CHIP 330PF+-5% 50V CP1101 5172801 FILTER,LOW PASS C1360 0893133 CERAMIC CHIP 330PF+-5% 50V...

  • Page 32

    SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION R1306 0103818 CHIP RESISTOR 8.2OHM+-10% 0.1W R1535 0105205 CHIP RESISTOR 510 OHM+-0.5% 1/16W R1307 0103813 CHIP RESISTOR 3.3 OHM+-10% 0.1W R1536 0105194 CHIP RESISTOR 2400OHM+-0.5% 1/16W R1308 0790051 CHIP RESISTOR 10KOHM+-5% 1/16W R1601 0103829 CHIP RESISTOR 68OHM+-5% 0.1W R1309 0790051...

  • Page 33

    SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION IC1603 CK23291R IC 74VHC4046MTCX BL1601 BE10132R FILTER,LC IC1604 5305831 IC TC7S08 BL1602 BM00152R FILTER IC1605 CK18421R IC TC7SHU04FU F1601 5723235 FUSE 1A IC1606 CK21441R IC NJM2533V PG1001 1830311 CONNECTOR Q1001 5328221 TRANSISTOR 2SC2620-QC PG1002 1830096 MINI PLUG Q1020 5328192...

  • Page 34: Schematic, Circuit

    WAVEFORMS SCHEMATIC, CIRCUIT BOARD AND BLOCK DIAGRAMS/MICROPROCESSOR CHAPTER 6 PINS FUNCTION TABLES INTERNAL WIRING DIAGRAM IC1001-7 1.1Vp-p IC1101-26 1.1Vp-p IC1002-17 6.5Vp-p Q1102-B 1.0Vp-p 0.2V/20.0µs 2V/20.0µs 0.2V/20.0µs 0.2V/20.0µs LENS COLOR CHART COLOR CHART COLOR CHART COLOR CHART BLOCK PG1250 PG1301 PG1380 TEST PLUG IC1002-5 6.5Vp-p...

  • Page 35

    -6.6 10000p/250 15.2 -6.5 R1003 CCD OUT CODE PART NAME 2SC2462LD 2SC2620 C1024 1SS353 VOLTAGE: REC MODE : WAVEFORMS No. DIFFERENCE OF VK-S454 AND PROCESS VK-S454E [PC] PG1241 Parts VK-S454 VK-S454E [P6-5] IC1001 ICX216AN ICX217AN C1027 C1026 22/6.3 SWITCHING REGULATOR...

  • Page 36

    32us B750 32us B750 0 0 0 0 0 0 0 0 0 0 0 0 17ms 32us CODE PART NAME DIFFERENCE OF VK-S454 2SB1462 AND VK-S454E 2SC2412K Data in the EEPROM (IC1250). 2SC2411K 2SC2462-LD IC1380 IR FILTER DRIVE IC1301...

  • Page 37

    IDENTIFICATION OF PARTS LOCATION Symbol Parts Symbol Parts Symbol Parts Symbol Parts Symbol Parts Symbol Parts Symbol Parts Location Location Location Location Location Location Location C1523 A-3A C1618 A-1B IC1605 A-1B Q1603 B-3B R1526 B-2A R1621 B-3B BL1601 B-1B C1524 B-3A C1621 A-1B...

  • Page 38

    PC CIRCUIT BOARD DAIGRAM TL1301 TL1345 TL1335 TL1336 TL1332 TL1334 TL1344 TL1348 TL1333 TL1349 TL1347 TL1331 TL1350 TL1346 TL1381 TL1383 TL1386 TL1384 TL1385 PC -SIDE B- PC -SIDE A- [PATTERN No.JA1893-1] 6 - 11 6 - 12...

  • Page 39

    SP CIRCUIT BOARD DIAGRAM CSR CIRCUIT BOARD DIAGRAM C1026 C1027 SP -SIDE A- CSR -SIDE A- C1650 C1650 R1639 BOARD CSR -SIDE B- SP -SIDE B- 6 - 13 6 - 14 [PATTERN No.JA1893-1] [PATTERN No.JA1893-1]...

  • Page 40: Block Diagrams

    NTSC/PAL SW IC1121 IC1150 4.43MHz CAMERA DSP D-RAM IC1101 IC1001 PG1001 PG1241 CDS/AGC & A/D CONV P: VK-S454E Q1001 (1/2) (1/2) SENSOR 3.58MHz N: VK-S454 BUF. Y/CHROMA 2-11 5-14 DIGITAL AUTO PROCESS Q1605 L1604, FOCUS BUF. IC1601 C1617 PG1241 PG1001 DET.

  • Page 41: Microprocessor Pin Function Table

    MICROPROCESSOR PIN FUNCTION TABLES Digital Microprocessor (IC1201: D-µP) Active Abbreviation Function Active Abbreviation Function Level Level (Pulse) LD-DSP Activates data communication with IC1121 (DSP). 0V-3V V-GYRO Not used. Connect to ground. (Pulse) CS-DAC Not used. Open. 0V-3V H-GYRO (Pulse) CS-VAP 0V-3V FDET F-value detection input.

  • Page 42

    V K - S 4 5 4 TK No. 8101E Digital Media Products Division,Tokai V K - S 4 5 4 E Copyrights © Hitachi, Ltd. 2001. All right reserved. Printed in Japan (I)

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