- Frank`s Hospital Workshop
Contents
1. CODE NAME DESCRIPTION It is used to enable the Black Level Auto Control SW2 ON position 1 2 Ad just black level pedestal BOTTOM BLACK When Auto BLK off SW2 REM BLACK LEVEL OFF position 2 3 regulate the pedestal to 30mV respect referring level R156 BLACK LEVEL Ad just black level pedestal BOTTOM BLACK When Auto BLK on SW2 ON AUTO CONTROL position 1 2 regulate the pedestal to 30 mV respect referring level It is used to enable the Auto White Level AUTO WTH SW3 ON position 1 2 Ad just white level TOP WHITE Set to 590mV video analog signal respect WHITE LEVEL referring level Use jumper SW3 ON position 1 2 to select or reject this feature GAMMA Faetoryadiused O ANALOG VIDEO 2 3 ISYNC PULSE PER SCOPIA PULSATA 1 2 Jumper 16 position 1 2 gamma value is 0 4 CORRECTION Jumper 76 position 2 3 gamma value 15 12. N23 1 SHADING Using correct dose uniformity regulate the trimmers P7 P8 P9 e P10 until to obtain on the monitor the maximum uniformity The jumper J4 enables or rejects this regulation KV AUTO It is possible to change the answer sensibility of control system dose In according to change the sensibility use trimmer P11 The trimmer P4 changes the action point of the control video level CIRCLE Using trimmer P6 it is possible to change the diameter of video circle The trimmer PS regulates the circle area where it finds the dose automatic control In according to select the video or the auto circle move the jumper J2 The trimmers P1 P2 and P3 regulate the centering and the symmetry GAMMA CORRECTION It is possible change the gamma value Moving jumper J6 in position 1 2 the gamma level corresponds to 0 4 while moving jumper J6 in position 2 3 the gamma level is equal to 1 VIDEO 1 OUTPUT On BNC VIDEO 1 are possible changing two signals Analogic video 1 Vpp 750 or a square wave signal 5Vpp at 25Hz 30Hz in accor
3. VIDEO AUTO LEVEL The system includes an automatic control of white WH and of black BK The trimmer R157 regulates the level of black SET UP when there is not the image Set up this trimmer in according to obtain a black level of 20 30mV The trimmer R156 reduces in automatic way the black level to compensate the diffusion radiation Using a phantom which simulates human body regulate this trimmer until to obtain a good black level when it presents diffusion radiation It is possible reject this automatic control moving the jumper SW2 position 1 2 on position 2 3 OFF The trimmer R163 regulates the level of white automatic control WH Using a standard phantom and with white automatic control on regulate this trimmer until to obtain a correct video signal It is possible reject this control by jumper SW3 position 2 3 and also by the command AUTO OFF pin 2 25DB connector GAMMA The system is adjustable in according to have a gamma 0 4 The gamma value can be modified to 1 moving jumper J6 The video level of gamma correction is adjustable using trimmer R94 and it never must modify other than it necessary to change some components In according to make these adjustments apply a video input CCD camera head of 3Vpp and regulate this trimmer until to obtain a value of 0 7Vpp on output VIDEO 1 NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 10 20 FEMALE SOLDERING
4. M GO 1 A a Vi N 1 INTRODUCTION The CCD camera N23 system acquires and digitizes radiological images This equipment must be used in accordance with the manual and is not intended for any use outside of that herein described The N23 is a device component and interfaces to x ray equipment and as such must be used by qualified personnel only with knowledge of all x ray protection The user is also responsible for all additional compliance certification and correct function at time of installation 2 SAFETY INSTRUCTIONS NICAL S p A accepts no responsibility for any misuse of the CCD camera N23 outside of its original design and description as set forth in manual Furthermore NICAL S p A accepts no responsibility for any damages to camera operator and patient due to incorrect installation or unauthorized modification mechanical or electrical and misuse of N23 CCD system Only personnel authorized by NICAL S p A may service equipment Authorized persons may only remove covers when servicing electrical power concerns It is mandatory to replace parts with only original NICAL S p A replacement components 2 1 Warnings 1 Read these instructions carefully Save these instructions for future reference 2 Follow all warnings and instructions marked on the product 3 Slots and openings in the cabinet are provided for ventilation to ensure reliable operation of the product and to protect
5. gt SHADING VID OUT R210 100 99 arf 030 MMBT2907 032 2369 2907 r 0 VIDEO RIBS 27K V N A arce O 100 MMBTHIOLTI UTI 019 ET Qu 4 ES MUBTHIOLTI A s a 2907 470F S RI06 5 MMBF4392 038 016 a R100 350 UMBTHIOLTI D L 8 4592 49 022 2 R101 R83 AUT 2 7 3 5 TPS R152 1448 09 MMBT2369 015 RB5 i i 8 12K MMBF 4392 040 2369 8161 MMBT2369 037 u7 179105 RIGS 10 10K N23_ANB1 sch CARD 18v ARE N23_ANBI on 14 04 05 14 04 03 sweet 3 C84 C60 220uF 2207 024 1 2577 15 COMP SWITCH GND uuu EE E 0_ gt di 0 lt v CA contro lt roT_ANT ora lS ro gt 020 194148 gt gt gt 5 gt 045 mar Ha Z FILENAME E PWR amp MB N23 ANBI sch CARD N23_ANBI A2 DATA 14 04 03 R 45V VIEO B VEO 5
6. 1 OE 01 10 0 91 10 91 0 0 9 EPM7128A 100PW TITLE FILENAME N23 CONV N23 BLK CONO sch CARD REV N23 CONO 0 lt Tus J 100 00 30 1 006 3 3V 3i 17005 37 1 00 EPU712BA 100PW EPM71ZBA 100PW 2 2 Zc Er 225 1 0t00 151 us RAMIMXIGX4 u4 RAMIMXI6X4 5 RAMIMXIGX4 14015 91 os eam yo ole F 5 Vos 7 02 7003 7 48 1 02 17903 7 8 7 8 J 1 05 1 010 Qui 5 010 00 5 Mos 441400216008 3 195 1 08 1 07 UB 1781335 TITLE FILENAME BLOCCHETTO MEMORIE N23 1 5 ISIZE REV E Slee 20K 10K TITLE FILENAME N23 XCD01 N23_XCD01 sch 18 02 03 SHEET 2 2 U1 A7815 pwr a 15 1 C2 100 47uF d C8 C9 100nF 100uF VIDEO OUT TITLE FILENAME N23 XCD02 N23_XCD02 sch CARD SIZE REV XCD02 A4 0 DATA 18 02 03 SHEET 2 2
7. email nical nical com http www nical com NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 19 20 FILENAME N23 MBO sch SIZE a DATA 24 02 03 SHEET 2 CARD N23 MBO a a lt a 1 a lt ROT ORA CONTROL nm lt LOO NI 3 2 1 5x A 4 e SHADING 47uF C 18Y 12 C35 24 190nF 05 2569 o R74 on 10 E MMBCB07 gt x 1 5 1 c2 74HC123 s 74HC123 A i n 18K U4 A a ng 74HC123 rm swe D GND 2 100nF no D 2 939 22 12x 100nF 74HC123 5 74HC123 F des 5 o AUTO CIRCLE 04 25 12 vt K R O lt MUBCBI7 RIO LN 22 RS0 De C26 2 8x2 7 C36 BS Us ka wr 100nF R68 vor D C 1393 nea d 1 026 2222 Cw R61 470 SIA 3K9 6 m 8 2222 1393 R69 027 n 3s 470 SIA R204 er R70 AUT lt WK Li as 2 GREEN sce M 2 05 O 14148 C98 CONTROL R62 4 7uF GND O 5 12 12x 12 12x c23 cu 25 27 29 100nF 100nF 100nF 100nF 100nF 100nF TITLE ENAME N23_AUO N23_ANB1 SCH GND GND CARD REV wee __ fo DATA 14 04 03 sut 2 of 4 VID IN SYNC vo 5V 00
8. 15 KV Pin 3 ANALOG BOARD N23_ANBI k D 10 BITS xi su X8 Pin 7 X16 Pin 20 CCD N23H DRF Pin 18 CCD N23 MD Pin 18 d RECURSIVE FILTER LIB Pin 5 INVERSION H V VERT INV Pin 2 D A 10 BITS VIDEO 2 e FREEZE A Pin 9 MWR Di STANDARD MEMORY ADDI Pin 11 CONVERSION STORE apne en FREEZE A B ADD3 Pin 12 ADD4 Pin 25 CONVERSION BOARD N23_CONO ADDS Pin 13 y DIGITAL BOARD N23 DIB1 NA lt VIDEO 3 A VIDEO 4 B 7 IN NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 14 20 10 FUNCTION AND MEMORY CONTROL 10 1 Memory function of CCD camera The pins used for memory function are the following 10 LIH FREEZE A FREEZE B MWR ADDO ADD1 ADD2 ADD3 ADDA ADDS There are 5 memory modes listed below Direct access mode Allows the recording or display of the first 32 positions of memory Manual selection mode Allows the user to move indicator to desired position to guarantee recording playback at a specific position e Multiple Cine Loop mode without reset Allows the recording playback of images in sequential order at a selected speed starting from actual indicator position e Single Cine Loop Mode with reset Allows the recording playback of images in sequential order at a selected speed starting from initial first indicator position e Erasing Memory Allows the erasing of the full memory 10 2 Recording to and playback from memory modes T
9. Digital H V Inversion 525 625 525 625 525 625 recursive filter 525 625 525 625 1049 1249 Digital H V Inversion 625 50Hz 625 50Hz 625 100Hz DRF Dynamic recursive filter 525 60Hz 525 60Hz 525 120Hz Main analog board only ideo 1 from main analogic board ideo 2 3 4 LIH amp recursive filter amp memory if present VIDEO 4 VIDEO 3 VIDEO 1 VIDEO 2 CABLE CABLE CONTROL PWR CABLE CAMERA HEAD CABLE Female DB25 female DB9 NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 3 20 4 TECHNICAL DATA amp CERTIFICATIONS Available CCD scanning system Scanning aspect ratio CCIR 625 50 interlaced 752 x 582 pixels EIA 525 60 interlaced 768 x 494 pixels 4 3 CCD Camera Head Integrated optical lens system Image intensifier output screen Mounting frames 4 Interline low blooming CCD sensor 470 000 pixels High resolution with adjustable focus and diaphragms From 15 to 40mm diameter From 6 inch to 16 inch LI CCD CCU Characteristics Resolution Gamma correction Video output A D converter Video Bandwidth DRF Dynamic Recursive Filter MD Motion Detection Standard Recursive filter Memory Automatic video level compensation Automatic x ray kV mA compensation Dynamic contrast compensation for better image uniformity Very high dynamic video amplifier High precision electronic circle Video outpu
10. Set the shading gain to compensate picture not uniformity because of Image VS VP HS HP Intensifier Use jumper J4 ON position 2 3 to select or reject this feature It is used to enable the video and auto video regulations CIRCLE ENABLE J2 position 3 4 VIDEO CIRCLE J2 position 2 3 AUTO CIRCLE WE Adjust circle blanking diameter Use jumper J2 ON position 3 4 to select or reject this feature Adjust measurement circle area used by automatic gain and x ray KV control AUTO CIRCLE Use jumper J2 ON position 2 3 to select or reject this feature It is used to enable on Video 1 an analogic signal position 2 3 or an output at 25Hz 30Hz square wave position 1 2 used as sync pulse in high contrast P3 CIRCLE SIMMETRY Adjust the symmetry of video circle Use jumper J2 ON position 3 4 to select or reject this feature Adjust the vertical centering of video circle Use jumper J2 ON position 3 4 to select or reject this feature EEG HOR SHIFT Adjust the horizontal centering of video circle Use jumper J2 ON position 3 4 to select or reject this feature PA AUTOKV LEVEL Set the value of AUTO KV Increase or decrease the sensibility of the automatic KV control This feature is AUTO KV WINDOW very useful in according to adapt the CCD camera N23 for any kind of X ray generator ROTATION RESET E Position 2 3 Automatic reset when system turned on CCD CAMERA WITH Position 1 2 Manual reset To bring camera head to 0 position
11. VIEW 9 CCD CAMERA CONNECTORS The CCD camera N23 connectors can be divided as follow 1 CCD CAMERA HEAD CONNECTOR DB9 2 COMMANDS INTERFACE CONNECTOR DB25 9 1 CCD camera head connector DESCRIPTION COMMAND ONLY FOR ROTATION NICAL Spa CCD CAMERA N23 Service Manual Power Supply 4 o Q Release 1 Command motor 2 Command rotation Ground video Page 11 20 Video signal 9 2 1 24V O GND AUTO OFF KV O m CONTROL ROT ANT e CCW ROT ORA LIH e Q CW CCD N23H DRF X0 FILTER O CCD N23 MD 7 X8 FILTER T X16 FILTER HORIZONTAL INV u INVV FREEZE A VERTICAL INV O FREEZE B 52 23 ES E ADDO 24 12 E a O ADD2 ADDA ADDS D NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 12 20 NAME SIGNAL PIN DESCRIPTION 24V IN 1 POWER SUPPLY 20 30 V GND IN 14 GROUND REF AUTOMATIC WHITE LEVEL AUTO OFF IN 2 OPEN ON GND OFF OUT 18V IF DOSE IS TOO LOW EY OUT 3 OUT 0V IF DOSE IS CORRECT OR TOO HIGH OUT 18V IF DOSE IS TOO HIGH ERY OUT 15 OUT 0V IF DOSE IS CORRECT OR TOO LOW ANALOG KV CONTROLL OUT 0 12 V OUT 0V IF DOSE IS TOO LOW CONTROL OUT 16 OUT 12V IF DOSE IS TOO HIGH OUT 6V IF DOSE IS BALANCED ROT ORA GND CLOCK WISE ROT
12. ground pins CW ROTATION ONLY pin 17 and CCW pin 4 on interface connector DB25 at the same time Location N23 0 P1 VERT SHIFT NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 8 20 8 4 Customer Set up
13. it from overheating these openings must not be blocked or covered 4 This product should be operated from the type of power indicated on the marking label If you are not sure ofthe type of power available consult NICAL Company 5 When the CCD camera is turned on make a white test in according to verify the quality image 2 2 Environmental risks and disposal The CCD CAMERA N23 contains some materials that can be recycled at the end of its life cycle In particular the system contains the following materials gt Iron copper lead aluminium non biodegradable plastics and fiber of glass printed circuit boards NICAL S p A does not accept equipment for recycling 2 3 Symbols Symbol Description N Attention consult the documentation Compliance to Medical Device directive 93 42 ko Device with type B parts Protective earth ground NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 2 20 3 DESCRIPTION 3 1 Identification labels Made in Italy Code 23 Type N23 CCD N23 CCD CAMERA HEAD Line 24 DC 20 MANUFACTURER NICAL SPA Serial Number xxxxx Date 04 03 ICAL Spa Via Soffredini 43 20126 Milano Italy Serial Number xxxxx 3 2 Description MAIN DIGITAL PROCESSING MEMORY BOARD BOARD BOARD maon 1 1 50 CCIR 625 50 60 525 60 0 Frames 32 Frames 256 Frames 512 Frames IN Normal R Rotation 525 625 525 625 525 625
14. ATION IF GND AT THE SAME CW TIME WITH PIN 4 ROT ANT RESET TO 0 ANGLE ra GND ANTI CLOCK WISE ROTATION IF GND AT THE a IN 4 SAME TIME WITH PIN 11 ROT ORA RESET TO 0 ANGLE OPEN LIVE IMAGE LIH IN 5 GND LAST IMAGE OLD DRF m OPEN DYNAMIC RECURSIVE FILTER CCD N23H GND STANDARD RECURSIVE FILTER MD pa OPEN MOTION DETECTION CCD N23 GND STANDARD RECURSIVE FILTER X0 X4 X8 16 ALL HIGH PEEL NOISE FILTER 2 X0 IN 6 GND NOISE FILTER 0 X4 IN 19 GND NOISE FILTER 4 X8 IN 7 GND NOISE FILTER 8 X16 IN 20 NOISE FILTER 16 INVH OPEN REAL IMAGE HOR INV GND HORIZONTAL IMAGE INVERSION INVV x j OPEN REAL IMAGE VERT INV GND VERTICAL IMAGE INVERSION OPEN LIVE IMAGE IN 9 GND FREEZE THE IMAGE IN VIDEO 3 OPEN LIVE IMAGE EREEZESR IN 22 GND FREEZE THE IMAGE IN VIDEO 3 MWR IN 10 SEE MEMORY OPERATION ADDO IN 23 SEE MEMORY OPERATION ADDI IN 11 SEE MEMORY OPERATION ADD2 IN 24 SEE MEMORY OPERATION ADD3 IN 12 SEE MEMORY OPERATION ADDA IN 25 SEE MEMORY OPERATION ADDS IN 13 SEE MEMORY OPERATION NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 13 20 9 3 Block diagram CCU rack N23 IDEO SIGNAL FROM CCD HEAD 24V Pin 1 GND Pin 14 POWER SUPPLY ANALOG OUTPUT AUTO OFF Pin 2 VIDEO PROCESS VIDEO 1 CW Pin 17 CIRCLE GENERATION CCW Pin 4 AUTO LEVEL BW WH AUTO KV SHADING CONTROL PI 16 ROTATION DRIVE KV Pin
15. Analog CCD Camera N23 8 ANALOG CCD TV CAMERA 8 File TV CAM ANA_E00R02 doc CCD CAMERA N23 TV CAMERA FOR USE WITH X RAY IMAGE INTENSIFIER Service Manual October 2004 Release 1 SUMMARY INTRODUCTION SAFETY INSTRUCTIONS 2 1 Warnings 2 2 Environmental risks and disposal 2 3 Symbols DESCRIPTION 3 1 Identification labels 3 2 Description TECHNICAL DATA amp CERTIFICATIONS MAINTENANCE AND CLEANING 5 1 Maintenance 5 2 Cleaning CCD CAMERA N23 DESCRIPTION COMPONENT POSITIONS 7 1 POSITIONING OF CAMERA HEAD 7 2 POSITIONING OF CCU STANDARD INSTALLATION 8 1 Camera Head CCD head adjustments 8 2 CCU adjustment 8 3 Set up points 8 4 Customer Set up 8 5 Factory set up only CCD CAMERA CONNECTORS 9 1 CCD camera head connector 9 2 Command 9 3 Block diagram CCU rack N23 10 FUNCTION AND MEMORY CONTROL 10 1 Memory function of CCD camera 10 2 Recording to and playback from memory modes 10 3 Direct access memory ADD5 1 10 4 Manual selection mode ADD5 0 ADD1 1 ADD0 0 10 5 Multiple cine loop mode without position reset ADD5 0 ADD1 0 ADD0 1 10 6 Multiple cine loop mode with position reset ADD5 0 ADD1 0 ADD0 0 10 7 Erasing memory mode ADD5 0 ADD1 1 ADD0 0 11 ELECTRICAL DIAGRAMS 11 1 General circuit diagram and block diagram of N23 CCD system NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 1 20 M a 1 1 CO Un un un a da 9 N KY NY DN m
16. CD cameras for x ray image intensifier and radiological applications A very important new feature available on N23H is DRF Dynamic Recursive Filter which allows changing pixel by pixel the recursive filter factor This type of filter offers better photonic noise reduction eliminating also image persistence during patient moving NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 5 20 7 COMPONENT POSITIONS 7 1 POSITIONING OF CAMERA HEAD Place camera head into output phosphor well of image intensifier see figure below Line up holes at 120 and fasten with screws to intensifier If necessary it is possible rotate camera head 90 by 90 with screws at the bottom of the cover head NOTE For best performance it s better to insulate the camera head from the ground system For this reason the camera head has a special superficial treatment to insulate the head when it is fixed with screws to the system Be sure to use plastic insulation with screw to fix head at the system ALUMINIUM COVER ALLEN SCREW ADJUSTABLE DISTANCE RING CCD ADAPTER CCD ADAPTER 7 2 POSITIONING OF CCU Line up holes at the bottom of the cover CCU and fasten with screws to the system NICAL COMPANY DOES NOT PROVIDE THE SET SCREWS RACK CCD N23 BOTTOM VIEW 120 mm NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 6 20 8 STANDARD INSTALLATION the CCD cameras are calibrated in Nical Company and the custo
17. CE AND CLEANING 5 1 Maintenance The system will serve you well if you take care of it Do not spill liquids on the system Do not subject the system to heavy shock and vibration Never place objects on top of the system to avoid damaging it All electrical equipment should be used according to the instruction provided It is advised to control all connections and the image quality on a regular basis It will guarantee an efficient function and long product life v v v v Maintenance guide Frequency Description Cable connection and condition inspection 1 year Image quality check 5 2 Cleaning When cleaning the system follow these steps gt Power offthe system gt Usea soft cloth moistened with water gt Do not use liquid or solvents 6 CCD CAMERA N23 DESCRIPTION The N23 CCD camera manufactured using printed circuit board with SMD technology offers better performance than NICAL s well know N20 camera system It uses the same camera head of CCD camera N20 and the same wiring and controls All previously offered configurations are available in the new system along with vertical horizontal inversion and continuous 360 rotation Digital integrated image processing has been changed from 9 to 10 bit output resolution for better performance This new system allows obtaining 512 frames memory with icons and numbered frames displayed These new characteristics put the new N23 CCD at the top of the standard resolution C
18. V 9 RI Re U21 1 2576 0 12 51 24v n 5 s 51 05 04 10 31 V x SIA ad ed pa pa c24 c22 220 220 33 c26 t2 c25 5 5 D 4 A 150 150 5 1 c23 c2 80510 91 20 zo IA usss 15 DUTB 0 1N4148 BE lu 27 ls n ovre Hi Kom 18v VSSA2 19 T TDCIIS UTE 470 104148 474 03 RIO amp 2 ss 100 100 1 48 a c2 svo c20 TP2 BL2 8 0 Ev ai 3 qo Vi 178115 v 2 5 5 ag ES C 53 144148 gt L 15V 55 84 RE GNO GND 5 470 nn y aen nel zi d 220 CNO 22 oe SATTA E af ne 100 3 3V In j O alzi 220 5V Gn prtt assi isis ej u RI 4K7 R 407 4 100pF on EXT 5 SIA 9 0 51 FREB viogoc 00 9 ve 1sv INVY gt MWR 010 7 2222 27 330 voto R37 i 2907 A F 556 A 39 a 2 2 330 100K Ti ch Ki R67 vusr2ses 22K JE 21 x8 neo Kk R75 ACONV C T 68 cue gt M NEI 5v R28 4K7 lt 15 100pF cst O tuF 100 MMBT 10k 14872007 220 74HC00 s nie i ae 5V 74HCOO 560pF 293 CP ow 4 mes O 680 Muar 4392 2 0 m i gt
19. a 15720 n iud an R82 88132 pi gt Ww Ns 12k lt o 5 F 5 cw 27 m ne E59 um dg pa Td be mE cdd DU ld PWR VIDEO OUT CONV N23 DIBt sch 1 5 C68 DIB1 E 470nF 10K 10K N23 osi 08 05 03 uv AWLOt 131 AW 01 13 Bw 0t 13 AX 03 15 BLI A BUS 0 9 BLK_N23MEM BW 01 13 EPM7128A 100PW 1 08t01 13 3 3V v9 KM416V1204CJ 5T 1 0Bt01 131 1 0AC01 13 EPM712BA 100PW 3 3V BY 08 151 24v ma sync C roo C 3 rus D25H sp Cro C rcx voto r UG M24C16 TITLE FILENAME N23_DIG1 N23_DIB1 SCH 2 U 00000000000 00 CARD Bize De 5 S 888888 2255 B voos N23 DIB1 A2 ORTI 4 7 3 3v z DATA 08 05 03 0 9 B 0 9 R33 470 R32 470 BUSIO 9 GCLRN 0E2 GCLK2 Ni us 33 EPU712BA 100PW 1 00t01 10 Vene 5 61 40604 601 9005 D gt 57 0997 55 ss s 57 77 1 00101 101 92 416 1204 2 5 1 0Gt01 101 000 1 0002 170602 2002 1731 K1 0004 1 3
20. ding to sync x ray systems in pulsed fluoroscopy To obtain the analogic video move jumper SW4 in position 2 3 while to obtain the square wave signal move jumper SW4 in position 1 2 ROTATION In the systems where the CCD camera head has the rotation 1 Manual reset Factory default Jumper JS position 1 2 To bring camera head to 0 position ground pins CW pin 17 and CCW pin 4 on interface connector DB25 at the same time 2 Automatic reset when system turned on Jumper J5 position 2 3 NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 9 20 8 5 Factory set up only N23 1
21. ge is read at position 1 and transferred to BUS for display 1 1 1 1 1 0 Same as above record read memory at position 2 1 1 1 1 0 1 Same as above record read memory at position 3 1 1 1 1 0 0 Same as above record read memory at position 4 1 1 1 0 1 1 Same as above record read memory at position 5 1 1 1 0 1 0 Same as above record read memory at position 6 1 Same as above record read memory for the others position 1 0 0 0 0 0 Same as above record read memory at position 32 10 4 Manual selection mode ADD5 0 ADD1 1 ADD0 0 CLK 0 DWN 0 RESET DP 1 0 MANUAL UP OR DOWN MODE 0 UP The indicator of frame memory position is moved to the next successive position position lt position 1 DOWN The indicator of frame memory position is 1 0 moved to preceding frame in memory position position 1 CEN RESET The indicator of frame memory position is 1 0 moved to initial frame of stored image sequence 0 X position 1 2 2 NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 16 20 10 5 Multiple cine loop mode without position reset ADDS 0 ADD1 0 ADD0 1 ADDS ADD4 ADD3 ADD2 ADDI ADDO DESCRIPTION MULTIPLE CINE LOOP MODE WITHOUT RESET In this mode the record playback starts from the actual position found MWR increasing frame by frame automatically at the selected speed rate In this mode
22. he MWR write read command signal manages the memory storage operations described as follow ATTENTION 0 GROUND 1 OPEN MWR DESCRIPTION Memory Write If MWR GND user can record an image to the memory The video input Live or LIH 0 present on BUS is transferred to the memory at the position where indicator is found and with selected mode See list of modes Memory Read If MWR OPEN 1 user can playback an image from the memory The frame displayed will 1 correspond to indicator position at this time The frame will be transferred to BUS with selected mode See list of modes Monitor visualization APPLICATIONS MWR FREEZE A FREEZE B LIH DESCRIPTION Write memory with the image present on BUS LIVE for all the setting value 0 X X 1 of the other 3 commands LIVE images from camera head 1 X X 1 Memory stand by 1 1 X 0 Read memory frames and images are transferred on monitor A 1 X 1 0 Read memory frames and images are transferred on monitor 1 1 1 0 Read memory frames and images are transferred on both monitor X 0 X X FREEZE A Image on monitor A frozen X X 0 X FREEZE B Image on monitor B frozen NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 15 20 10 3 Direct access memory ADD5 1 If MWR 0 the image on the BUS Live or LIH is recorded 1 1 1 1 1 1 at the first position If MWR 1 the recorded ima
23. it is possible to acquire a series of different segmented images at various times During a successive playback of all the images in the memory it is possible to read the different phases of an exam recorded at different times Speed 25 30 Frames per second When MWR 0 images are acquired into the memory at 25 30 fps Starts at actual position of indicator When MWR 1 images are read playback from memory at 25 30 fps Starts at actual position of indicator Speed12 15 fps Speed 6 fps Speed 3 fps Speed 1 fps Speed 0 5 fps gt gt gt Speed 0 25 fps Single Shot When MWR 0 the user acquires ONE image into memory at the actual position of indicator When MWR 1 the user can read ONE image from the memory at the actual position of indicator In both cases the frame number is automatically increased to the next position after the recording or the playback of an image NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 17 20 10 6 Multiple cine loop mode with position reset ADDS 0 ADD1 0 ADD0 0 DESCRIPTION MULTIPLE CINE LOOP MODE WITH RESET ADDS ADD4 ADD3 ADD2 ADDI1 ADDO 0 X X X 0 0 During this mode the recording or playback always starts at the first position position 1 regardless of the position of the frame number indicator at MWR The frame memory number po
24. mer may regulate the following functions only DISTANCE IMAGE DIMENSION FOCUS OF THE CCD CAMERA HEAD IRIS OF THE CCD CAMERA HEAD SHADING REGULATION Tp p The parts where it is possible to find these regulations are 1 2 3 CCD CAMERA HEAD 4 N23 BOARD 8 1 Camera Head CCD head adjustments ADJUSTABLE DISTANCE RING IRIS DISTANCE IMAGE DIMENSION SET TO REQUIRED PICTURE DIMENSION UNLOCK THE ALLEN SCREW ADJUSTABLE DISTANCE RING AND ROTATE THE INTERNAL CYLINDER UNTIL THE REQUESTED DISTANCE FOCUS SET FOR BEST FOCUS BETWEEN IMAGE INTENSIFIER AND CAMERA HEAD DIAPHRAGM WITH STANDARD DOSE REQUESTED SET SCREW OF IRIS UNTIL THE 2 LEDS ON N23_ANBI TURN OFF In these conditions the value of video signal is equal to 1 3V at test point TP1 8 2 CCU adjustment SHADING MOVE JUMPER 14 SHADING ON N23 ANBI BOARD FROM POSITION 1 2 OFF TO POSITION 2 3 ON AND ADJUST P7 P8 P9 P10 FOR BEST IMAGE UNIFORMITY using flat x ray image at standard dose NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 7 20 8 3 Set up points
25. sition increases automatically at the selected frame rate speed Speed 25 30 Frames per second 0 1 1 1 0 0 When MWR 0 images are acquired into the memory at 25 30 fps starting at position 1 When MWR 1 images are read at 25 30 fps starting at position 1 Speed12 15 fps Speed 6 fps Speed 3 fps Speed 1 fps Speed 0 5 fps gt gt gt Speed 0 25 fps Single Shot When MWR 0 The memory acquires ONE image only starting at position 1 0 0 0 0 0 0 When MWR 1 only ONE image is read from the memory at position 1 In both cases the memory increases automatically frame by frame during recording or playback 10 7 Erasing memory mode ADD5 0 ADD1 1 ADD0 0 ADD5 ADD4 ADD3 ADD2 ADD1 ADDO 0 X X X 1 1 ERASING MEMORY Full erasing memory if signals contemporary GND more 0 9 0 0 1 1 1 5 11 ELECTRICAL DIAGRAMS 11 1 General circuit diagram and block diagram of N23 CCD system N23 0 Mother board N23 N23 Video board diagram Auto KV electronic circle generator and camera head rotation N23 DIB1 Digital board diagram A D converter LIH sweep reversal recursive filter and DRF N23 MEMI NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 18 20 NICAL S p A Via Soffredini 43 20126 Milano ITALY Tel t39 02 2571110 FAX 39 02 2572207
26. t signal 20 lines pairs on 6 image intensifiers 0 4 or 1 10 bits 20 MHz 3dB Yes N23H Yes N23 Factor 2 4 8 16 16 bits Yes Yes Analog and digital up down Yes shading Yes Yes 1 Vpp 0 3 Vpp Sync Video output standards Analog Main board Video 1 Digital Main board Video 2 recursive filter and or DRF amp LIH amp frame stored Digital processing board Video 3 Video 4 1 BNC 750 CCIR 625 50 or EIA 525 60 1 BNC 752 CCIR 625 50 or EIA 525 60 2 BNC 759 CCIR 625 50 interlaced EIA 525 60 interlaced CCIR 1249 50 interlaced EIA 1049 60 interlaced CCIR 625 100Hz interlaced EIA 525 120Hz interlaced Operating conditions Working temperature range Store temperature range Humidity 10 C to 45 C 40 C to 55 C Operating to 95 relative humidity non condensing Mechanical specifications Control unit dimension WxDxH Weight Camera head dimension H Weight 226 x 120 x 46mm 0 550 Kg Standard 85x87mm 0 460 Kg with Rotation 101x87mm 1 1 Kg Available power supply 24Vdc 20 Approvals Safety EN 60601 1 EMC EN 60601 1 2 Others CE label according 93 42 CEE directive for medical devices Options 360 Continuous rotating camera head with slip ring C Mount Zoom lens Neutral density filter 25 or 50 light transmission NICAL Spa CCD CAMERA N23 Service Manual Release 1 Page 4 20 5 MAINTENAN
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