Related Manuals for Hitachi VK-S274
Summary of Contents for Hitachi VK-S274
- Page 1 No. 8104E VK-S274/S274E VK-K274/K274E SERVICE MANUAL SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT COLOR & B/W VIDEO CAMERA September 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.
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Page 3: Notes When Using Service Manual
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 CHAPTER 4 EXPLODED VIEW 1. Exploded View ............4-1 1. Specifications ............1-1 2. Comparison with Previous Model ......1-2 Comparison of Specifications ......1-2 CHAPTER 5 REPLACEMENT Comparison of ICs .......... 1-2 PARTS LIST 1. -
Page 5: General Information
CHAPTER 1 GENERAL INFORMATION Specifications Note: The specifications are subject to change for improvement without notice. Signal VK-S274: NTSC Format VK-S274E: PAL Format VK-K274: EIA Format VK-K274E: CCIR Format Scanning System 2:1 Interlaced Image Sensor 4.5 mm Dia. (1/4-inch) CCD Image Sensor... -
Page 6: Comparison With Previous Model
Comparison with Previous Model 2.1 Comparison of Specifications VK-S274/VK-S274E VK-S234/VK-S234E ITEM VK-K274/VK-K274E VK-K234/VK-K234E Signal Format VK-S274: NTSC VK-S234: NTSC VK-S274E: PAL VK-S234E: PAL VK-K274: VK-K234: VK-K274E: CCIR VK-K234E: CCIR Power Requirements DC 9 V Power Consumption 3.3 W (MAX) Dimensions (W × H × D mm) 50 ×... -
Page 7: Chapter 2 Disassembly
CHAPTER 2 DISASSEMBLY Procedure CHASSIS (R) (5) REMOVE ONE SCREW (4) DISCONNECT FLAT CABLE (*1) (6) REMOVE THE PC CIRCUIT BOARD (10) REMOVE PC CIRCUIT SCREWS BOARD (9) REMOVE TWO SCREWS (*2) SENSOR CIRCUIT RUBBER BOARD CIRCUIT CRYSTAL BOARD FILTER LENS BLOCK (11) REMOVE... -
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 Stating 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. LIGHT VIDEO CAMERA 9PIN FLAT CABLE (ACCESSORY) COLOR VIDEO MONITOR PG1601 DSP INTERFACE CONNECT JIG VIDEO VIDEO IN 1 2 3 4 5 6 7 8 9 GND(VIDEO) BRW EX. -
Page 10: Setting Test Equipment
4) Be sure to connect the video output of video camera to a color video monitor (terminate the video output with 75 ohm: If the video output is not connected to the monitor (and if it is not terminated with 75 ohm), the output video signal level cannot be measured 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 "10. Error Messages". MS-DOS screen-1 C> 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) MS-DOS screen-2 3) Make sure that the adjustment floppy disk is write-protected. -
Page 13: Data Initilize Procedure
Data Initialize Procedure The following explains the adjustment procedure using the adjustment program (SMAP), following the order of items on PC display. 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: Electronic Volume Adjustment Procedure
Electronic Volume Adjustment Procedure The following explains the adjustment procedure using the adjustment program (SMAP), following the order of items on PC display. 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 15: Camera Adjustment (Adjustment) Procedure
Camera Adjustment (Adjustment) Procedure The following explains the adjustment procedure using the adjustment program Main menu *********************************************************** (SMAP), following the order of items on PC display. MANUAL ADJUSTMENT PROGRAM Refer to "4. Starting Adjustment Program (SMAP)" in advance, start SMAP and *********************************************************** DATA INITIALIZE display the main menu on PC display. -
Page 16: White Balance Adjustment [For Type S/Se]
Procedure: Matrix adjustment 1) Input 2 to PC on the adjustment menu screen. 2) The matrix adjustment screen will appear. << ADJUSTMENT OF BLUE MATRIX >> ROUGH ADJUSTMENT 3) Press the D key to minimize the yellow (YEL) level. Press the U key so the ratio between yellow (YEL) and blue (BLU) levels DOWN is 1:4. -
Page 17: Chroma Gain Adjustment [For Type S/Se]
7.4 Chroma Gain Adjustment [For TYPE S/SE] (Figs. 7-2, 7-3, 7-4) Adjustment menu Incompleted Phenomenon: *********************************************************** ADJUSTMENT Color of the picture is denser than that of the subject. *********************************************************** Color of the picture is lighter than that of the subject. AUTO IRIS CONTROL MATRIX Test Point:... -
Page 18: Autofocus Adjustment Procedure
Autofocus Adjustment Procedure The following explains the adjustment procedure using the adjustment program (SMAP), following the order of items on PC display. 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 19: Af Noise Level Adjustment
8.2 AF Noise Level Adjustment AF menu Incompleted Phenomenon: *********************************************************** AUTO FOCUS ADJUSTMENT It takes time until a subject is brought into focus. *********************************************************** Correct focus is not obtained. ADJUSTMENT OF ZOOM/FOCUS TRACKING ADJUSTMENT OF AF NOISE LEVEL Condition: CHECK OF ZOOM TRACE Point at a light box without a chart inserted at a distance of up to 10cm. -
Page 20: Spot Noise Adjustment Procedure
Spot Noise Adjustment Procedure The following explains the adjustment procedure using the adjustment program (SMAP), following the order of items on PC display. 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 21: Error Messages
10. Error Messages 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. 10.1 Error Message of Electric Volume and Camera Adjustment ERROR MESSAGE COUNTERMEASURE ERROR OCCURRED. -
Page 22: Error Massage Of Autofocus Adjustment
10.2 Error Message of Autofocus Adjustment 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 23: No Zoom And Focus Operation
(1) NO ZOOM AND FOCUS OPERATION L1301 faulty Correct the connections TL1301:9V Check the connections of the cable. of the lens flat cable. Check IC1201 and Check the 3V line TL1346:3V EEPROM IC1201 faulty. When power turned on: TL1335:PULSE R1215 faulty. TL1336:PULSE Q1201 faulty. - Page 24 C o r r e c t t h e c o n n e c t i o n s When power turned on: C h e c k t h e c o n n e c t i o n s o f t h e f l a t c a b l e .
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Page 25: No Focus Lens Operation
(2) NO FOCUS LENS OPERATION Does zoom operate See "(1)No zoom and Correct the connections Check the connections normally? focus operation." of the flat cable. of the lens flat cable When power turned on: TL1346:3V TL1336:PULSE Check the 3V line IC1201 faulty. -
Page 26: No Zoom Operation
( 3 ) N O Z O O M O P E R A T I O N See "(1) No zoom and Does focus operate Correct the connections Check the connections focus operation." normally? of the flat cable. of the lens flat cable. Check the Zoom switch faulty. -
Page 27: No Autofocus Operation
(4) NO AUTOFOCUS OPRATION Set the zoom to the See "(1) No zoom and Does zoom operate wide-angle end. focus operation." normally? Point at the objects from the infinity to Connect an oscilloscope close-up ends. to video output Is there a point at which focus is obtained Check IC1201 and between the infinity... -
Page 28: Subject Is Greatly Out-Of-Focus When Zoomed
(5) SUBJECT IS GREATLY OUT-OF-FOCUS WHEN ZOOMED. Check the Zoom switch Zoom switch faulty. Lens block faulty. TL1347-TL1350:PULSES unit. D1201,C1207,R1205 IC1201-49:1.2-1.6V IC1302-2,10,29:5V Check the 5V line faulty. Note: For the item marked , perform all Initialize the unit and the adjustments required when the IC1302-12,20:9V Check the +B line adjust autofocus... -
Page 29: Chapter 4 Exploded View
CHAPTER 4 EXPLODED VIEW Exploded View CIRCUIT BOARD CIRCUIT BOARD CIRCUIT BOARD 4 - 1... -
Page 30: Chapter 5 Replacement Parts List
CHAPTER 5 REPLACEMENT PARTS LIST 1. MECHANICAL PARTS LIST 2. ELECTRICAL PARTS LIST SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION MECHANISM SECTION CAPACITORS NX11252 RUBBER C1001 0893107 CERAMIC CHIP 5PF+-0.25% 50V DT10251 CRYSTAL FILTER [TYPE S/SE] C1003 0893044 CERAMIC CHIP 0.01UF+-10% 50V DT10361 GLASS [TYPE K/KE] C1004... - Page 31 SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION C1186 0202321 CHIP CERAMIC 27PF+-2% 50V C1518 0893202 CERAMIC CHIP 330PF+-10% 50V C1187 0893225 CERAMIC CHIP 0.1UF+80-20% 16V C1519 0893062 CERAMIC CHIP 1UF+80-20% 16V C1191 0893175 CERAMIC CHIP 1000PF+-5% 50V C1520 0206671 ELECTROLYTIC 10UF 10V C1192 0893175 CERAMIC CHIP 1000PF+-5% 50V...
- Page 32 SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION R1178 AQ00192R CHIP RESISTOR 820 OHM+-1% 1/16W R1375 0790036 CHIP RESISTOR 820 OHM+-5% 1/16W R1179 0790077 CHIP RESISTOR 1MOHM+-5% 1/16W R1376 0790047 CHIP RESISTOR 5.6KOHM+-5% 1/16W R1201 0790059 CHIP RESISTOR 47KOHM+-5% 1/16W R1378 0790047 CHIP RESISTOR 5.6KOHM+-5% 1/16W R1202 0790037...
- Page 33 SYMBOL SYMBOL P-NO DESCRIPTION P-NO DESCRIPTION D1503 CC10291R DIODE 1SS353 L1601 0773118 CHOKE COIL 10UH+-5% D1601 5337391 DIODE D1FS4 L1602 0773123 CHOKE COIL 22UH+-5% D1602 CC10463R DIODE MA3100L L1603 0773132 CHOKE COIL 100UH+-5%[TYPE S/SE] IC1002 CK12061R IC UPD16510GR IC1101 CK21332U IC HD49323AF CRYSTALS IC1121...
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Page 34: Connection Diagram
WAVEFORMS SCHEMATIC, CIRCUIT BOARD AND CHAPTER 6 BLOCK DIAGRAMS/MICROPROCESSOR IC1001-7 1.1Vp-p IC1101-27 1.1Vp-p IC1002-13 3.1Vp-p Q1153-B 550mVp-p PIN FUNCTION TABLE 0.2V/20.0µs 1V/5.0ms 0.2V/20.0µs 0.2V/20.0µs COLOR CHART COLOR CHART COLOR CHART COLOR CHART CONNECTION DIAGRAM [For TYPE S/SE] LENS BLOCK IC1001-13 6.0Vp-p IC1002-14 3.1Vp-p IC1201-38 3.0Vp-p PG1302... -
Page 35: Sensor [Sp]
SENSOR [SP] SCHEMATIC DIAGRAM -7.0 10.8 10.5 15.1 10.0 -7.0 15.0 10.5 -7.0 15.1 -7.1 IC1001 ICX278AK:[TYPE S] ICX279AK:[TYPE SE] ICX278AL:TYPE K] -7.1 ICX279AL:[TYPE KE] CCD SENSOR 15.1 -7.0 -2.0 -7.1 17.0 -7.0 12.0 10.0 CCD OUT CODE PART NAME 2SC2620-QC-T 1SS353 PROCESS... - Page 36 PROCESS [RC] SCHEMATIC DIAGRAM (For Display) CCD OUT DIGITAL CCD OUT (For Display) CODE PART NAME 2SB1462 2SC2412KBRST STC-2411K-Q TC7S08FU CDS/AGC & TC7SU04FU A/D CONV 2SC2462-LD-T TC7SH14FU TC7SHU04FUL UMH9N KV1470-T SENSOR DA221 [SP] MA132WA PG1001 (For Printing) DRAM 3.0L MA3030L-T CAMERA DSP VOLTAGE: REC MODE : WAVEFORMS No.
- Page 37 PROCESS [PC] SCHEMATIC DIAGRAM (For Printing) 6 - 4...
- Page 38 PROCESS [PC] SCHEMATIC DIAGRAM (For Printing) 6 - 5...
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Page 39: Switching Regulator [Csr]
SWITCHING REGULATOR [CSR] SCHEMATIC DIAGRAM VIDEO OUTPUT IC1604 VCO/PHASE COMPA. [TYPE S/SE] Y/C MIX & IDC-7S08[E2] VIDEO AMP LEVEL SHIFT 22P:[TYPE S] 12P:[TYPE SE] 1.6 2.1 C1608 [TYPE K/KE] 2.1 3.0 0 CODE PART NAME 2SB1424R 2SB1462 MPL1 MPL-1 2SC2620 DTA143EE DTC144EE DTC114YE... -
Page 40: Identification Of Parts Location
IDENTIFICATION OF PARTS LOCATION Symbol Parts Symbol Parts Symbol Parts Symbol Parts Symbol Parts Symbol Parts Location Location Location Location Location Location C1201 A-2A IC1122 A-2C R1203 B-5B R1368 A-4C C1001 B-3B BL1121 A-2B C1202 B-4A IC1173 B-5B R1204 A-2A R1370 A-4C C1003... - Page 41 Symbol Parts Symbol Parts Symbol Parts Location Location Location D1601 B-3C R1533 A-2B BL1601 B-3C D1602 B-3A R1534 A-2B BL1602 A-3C R1535 A-2B F1601 B-3C R1536 A-2B C1501 A-3A R1601 A-3B C1502 B-2A IC1501 B-3A R1605 B-2C C1503 B-2A IC1601 A-2C R1606 B-2C...
- Page 42 PC CIRCUIT BOARD DIAGRAM DIFFERENCE TABLE PC [PROCESS] NOTE: This table listes the different components marked with asterisks ( ) in the circuit board diagrams. SYMBOL Parts TYPE S TYPE SE TYPE K TYPE KE Location Q1153 B-2C R1162 B-2C R1164 B-2C R1165...
- Page 43 SP CIRCUIT BOARD DIAGRAM CSR CIRCUIT BOARD DIAGRAM DIFFERENCE TABLE CSR [SWITCHING REGULATOR] NOTE: This table listes the different components marked with asterisks ( ) in the circuit board diagrams. SYMBOL Parts TYPE S TYPE SE TYPE K TYPE KE Location C1608 A-2C...
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Page 44: Block Diagrams Overall
BLOCK DIAGRAM OVERALL TYPE S TYPE SE TYPE K TYPE KE IC1121 IC1122 CAMERA DSP DRAM Q1605 IC1101 IC1001 L1603 Provided PG1001 PG1241 CDS/AGC & A/D CONV Provided Q1001 (1/2) (1/2) C1617 SENSOR BUF. Y/CHROMA 3.58MHz 4.43MHz 2-11 136-144 DIGITAL PROCESS AUTO FOCUS... -
Page 45: Microprocessor Pin Function Tables
MICROPROCESSOR PIN FUNCTION TABLES DIGITAL MICROPROCESSOR (IC1201: D-µP) Active Abbreviation Function Level (Pulse) LD-DSP Activates data communication with IC1121 (CAMERA DSP). (Pulse) CS-DAC Not used. Open. (Pulse) CS-VAP GYRO-RST ----- ----- CEON ----- ----- CHARGE (Pulse) RD-OEB Activates focus drive data communications with IC1302 (FOCUS MOTOR DRIVE). (Pulse) ZD-OEB Activates zoom drive data communications with IC1301 (ZOOM MOTOR DRIVE). - Page 46 Active Abbreviation Function Level 0V-3V V-GYRO Not used. Connect to ground. 0V-3V H-GYRO 0V-3V FDET F-value detection input. Receives the F.DET voltage detected by IC1351 (F.DET/ IRIS DRIVE) and compares this with the reference voltage input via pin 53 to detect the F-value.
- Page 47 VK-S274/S274E TK No. 8104E Digital Media Products Division,Tokai VK-K274/K274E Copyright © Hitachi, Ltd. 2001. All rights reserved. Printed in Japan (I)