NEC Diamand Scan 71 Service Manual Download Page 54

Page: 54 / 103

Test Pattern Generation

A self-test pattern signal comes out from pin PB3/PAT. It can generate a cross hatch picture, a inverted

cross hatch picture, a whit epicture or a black picture.

8 cross hatch

Inverted 8

8 cross hatch

White Picture

Black Picture

The test pattern signal is generated when SELF and ENPAT are both set to “1”. This video signal will

synchronize to the free-running Hsync and Vsync, no matter which frequency is chosen. The following

diagram shows the timing relationship of cross hatch picture.

HSO

PAT

HSO

VSO

31.1kHz

60.8Hz

6us

1us

62.5ns

47.9kHz

74.9Hz

5.125us

0.625us

62.5ns

64kHz

62.5Hz

3.625us

0.875us

62.5ns

Summary of Contents for Diamand Scan 71

Page 1: ...MODELS MultiSync V720 MultiSync V721 Diamand Scan 71 Model No N0701 Series COLOR MONITOR SERVICE MANUAL Better Service Better Reputation Better Profit MITSUBISHI NEC MITSUBISHI ELECTRIC VISUAL SYSTEMS ...

Page 2: ... use screwdriver that does not fit you may damage the screws W A R N I N G The SERVICE PERSONNEL should have the appropriate technical training knowledge and experience necessary to Be familiar with specialized test equipment and Be careful to follow all safety procedures associated with high voltage CRT circuit designs to minimize danger to themselves and their coworkers To avoid electrical chock...

Page 3: ...SASSEMBLY 13 ADJUSTMENT PROCEDURES 16 WRITE AND INSPECTION FOR PLUG AND PLAY COMMUNICATION 28 TROUBLE SHOOTING 31 CIRCUIT DESCRIPTION 39 REPLACEMENT PARTS LIST 73 1 MultiSync V720 Parts List 73 2 MultiSync V721 Different List 94 3 Diamond Scan 71 Different List 96 BLOCK DIAGRAMS 98 SCHEMATIC DIAGRAMS 99 1 Video Board 99 2 Main Board 100 ...

Page 4: ...ction replace the CRT with only the same or equivalent type as the original and adjust the anode s voltage to the designated maximum rating never to exceed 1 1 2 Safety Checks Before returning the monitor to the user perform the following safety checks 1 Inspect to make certain that each lead dress is not pinched or that hardware is not lodged between the chassis and other metal parts in the monit...

Page 5: ...ight explode Caution Before performing servicing covered by this service manual read and follow the Safety Precau tions section of this manual Note If unforeseen conflict between the following servicing precautions and of the safety precautions always follow the safety precautions 1 Follow closely the servicing precautions printed on the monitor cabinet and chassis 2 Always unplug the AC power cor...

Page 6: ...tically Resolutions Supported Resolution based on horizontal and vertical frequencies only 640 480 60 to 120 Hz 800 600 55 to 110 Hz 832 624 55 to 106 Hz 1024 768 55 to 87 Hz 1152 870 55 to 77 Hz 1280 1024 55 to 66 Hz Some systems may not support all modes listed NEC cites recommended resolution at 85 Hz for optimal display performance Active Display Area Factory Setting Horizontal Vertical 310mm ...

Page 7: ...GNMENT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 PIN NO Mini D SUB 15P 1 RED 2 GREEN 3 BLUE 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 NO PIN 10 GROUND 11 GROUND 12 SDA 13 H SYNC 14 V SYNC 15 SCL ...

Page 8: ...OSM Select icon and adjust RESET Return the adjustment item to the factory setting Power indicator LED The LED indicate Power management state POWER SWITCH Push push to turn the monitor on and off Power input To connect with the power cord Signal input with the captive cable To connect with personal computers analogue RGB output 5 MultiSync V720 MultiSync V721 ...

Page 9: ... 6 Diamand Scan 71 ...

Page 10: ...N key to select icon right or left and the selected icon display red color If selected icon is DAC out press SELECT key will display DAC value bar fig 2 User can press UP key or DOWN key to adjust DAC value Press SELECT key to close DAV value bar and UP key or DOWN key to select the other icon P P P P PSPECIAL FUNCTION OPERATION 1 Degauss Active If selected icon is degauss icon press SELECT key to...

Page 11: ...00 7500 6500 or user defined Fig 4 7 3 OSD Color Select If OSD icon is selected press SELECT key to change OSD color there are three kinds of OSD color can be selected Fig 8 10 Background white blue black Action icon red red red Normal icon black white white Value bar blue yellow green Fig 4 Fig 5 Fig 6 Fig 7 Fig 8 Fig 9 Fig 10 8 ...

Page 12: ...A to indicate in factory mode Fig 12 13 Operation of factory mode is same as normal mode except below 2 condition a adjustment value is saved to user and factory area b R G B value are saved to current color temperature Fig 11 6 OSD Move Mode Press DOWN key and power on system enter OSD move mode user can move OSD display position in this mode Press SELECT key then OSD display following figure Fig...

Page 13: ...tal position Moves the image horizontally left or right Vertical position Moves the image vertically up or down Horizontal size Increases or decreases the horizontal size of the image Vertical size Increases or decreases the vertical size of the image Pincushion Barrel Increases or decreases the curvature of the sides either inward or outward Trapezoid Increases or decreases the bottom of the scre...

Page 14: ...lor Temperature Select the Color Temperature icon on Icon Select Window and push SELECT button It can be switched the different color Temperature OSD There are 3 background colors Blue Black and white These can be selected by SELECT button after the selection of OSD on Icon select window exit EXIT To exit the OSM window Select EXIT on Icon select window Then push SELECT button to exit OSM window N...

Page 15: ...NUMBER LABEL MODEL N0701 SERIAL No 00001 on ward Start from 00001 when month is changed Manufactured Year Last digit Manufactured Month January to September 1 to 9 October X November Y December Z Factory mark NPG CHINA Y 12 Control Code E Control Code A only DiamondScan 71 0 Y 1 Y 0 0 0 0 ...

Page 16: ...tom of the MultiSync monitor Then slide the tilt swivel base forward Then the latch above the tilt swivel base engages it is s s s s s e e e e e c c c c c u u u u ur r r r r e e e e e Removing Please removing the tilt swivel base when transporting for repair Push down the latch of the MultiSync monitor and pull out the tilt swivel base Slide backward the tilt swivel base from the front of the Mult...

Page 17: ... surface to prevent scratching CRT face 2 Remove the screw b 3 Raise the signal cable vicinity of a cabinet back and lightly hit part figure 1 reference of a top of the cabinet back and remove the cabinet back Cabinet Back Screw b Hitting Position Cabinet Back Fig 1 14 ...

Page 18: ...D ASSY 3 Disconnect the CRT BOARD ASSY from the CRT 4 Disconnect the connector S301 and P102 from the MAIN BOARD ASSY 5 Remove the Anode Cap from the CRT NOTE Carefully discharge the CRT anode by shorting it to ground before removing Anode Cap 6 Lift up the MAIN BOARD ASSY from the Cabinet Front ASSY CRT BOARD ASSY MAIN BOARD ASSY CRT 15 ...

Page 19: ...t 18 A Setting 18 B Cut Off Adjustment 18 C White Balance Adjustment Factory Auto Adjustment 19 D Maximum Brightness Adjustment 19 11 Focus Adjustment 19 12 Convergence Adjust 19 13 Power Saving Function Inspection 20 14 Geometry Adjustment 20 15 DCC 1 2B Writing and Inspection 20 16 Shipping Condition 20 17 Adjustment Magnetic Field 20 18 Timing Sheet 21 Reference Distortion Adjustment 25 Inspect...

Page 20: ... Factory Mode 4 Hot Key Operation A Factory Mode SELECT Key UP Key if pressed when the power SW on B OSD Position Control Mode DOWN Key if pressed when the power SW on 17 MODE RESOLUTION H SYNC EREQ V SYNC FREQ H POLARITY V POLARITY 1 VGA350 31 5KHz 70Hz 2 VGA400 31 5kHz 70Hz 3 VGA480 31 5KHz 60Hz 4 MAC º 35K 35 0KHz 66Hz 5 800 600 56 35 2KHz 56Hz 6 8514A 35 5KHz 87Hz 7 640 480 75 37 5KHz 75Hz 8 E...

Page 21: ...amsung CRT 103V TOSHIBA CRT 117V Matsushita CRT D Check the high voltage is 25 8kV Ó Ó Ó Ó Ó1kV 8 H Raster Center Adjustment A Mode No 18 B Pattern Crosshatch Reverse C Adjust the Brightness Control that the background can be visible D Change SW301 position to make the mostly near center background position 9 Mode 12 Pre Adjustment A Mode No 12 B Pattern Crosshatch C Enter to Factory mode Adjust H...

Page 22: ... m2 2 Change Pattern to Full White Brightness control set to Min 3 Adjust R gain control B gain control to X 300 Y 315 at the contrast control is adjusted 15FL 52cd m2 3 6500K Select the color Mode 6500K 1 50 50mm Green block Pattern Brightness Control set to Max Contrast Control set to Max Adjust G gain control to Y 39FL 134 cd m2 2 Change Pattern to Full White Brightness control set to Min 3 Adj...

Page 23: ...re automatically stored into the factory preset memory after 1 sec Note for the factory auto alignment Mode No 2 3 7 9 10 11 12 14 15 16 17 18 19 20 shall be adjusted Other modes can be used the calculated average value 15 DDC 1 2B Writing and Inspection A Mode Any Mode Pattern Any Pattern B Connect the MICON Tech DDC Read Write System C Scan bar code label and apply serial NO to EDID Data 16 Sett...

Page 24: ... Pulse dot 96 96 96 64 72 176 uS 3 18 3 81 3 81 2 12 2 00 3 92 Back dot 48 48 48 96 128 56 uS 1 91 1 91 1 91 3 17 3 56 1 25 Total H 449 449 525 525 625 408 5 m S 14 268 14 268 16 683 15 000 17 778 11 500 Disp H 350 400 480 480 600 384 m S 11 122 12 711 15 253 13 714 17 067 10 810 Front H 37 12 10 3 1 0 m S 1 176 0 381 0 318 0 086 0 028 0 000 S ync Pulse H 2 2 2 3 2 4 m S 0 064 0 064 0 064 0 086 0 ...

Page 25: ...se dot 64 40 128 56 80 136 uS 2 03 1 27 3 20 1 56 1 62 2 09 Back dot 120 128 88 80 160 160 uS 3 81 4 06 2 20 2 22 3 23 2 46 Total H 500 450 628 509 625 806 m S 13 333 11 886 16 579 11 76 13 333 16 666 Disp H 480 400 600 480 600 768 m S 12 800 10 565 15 840 11 093 12 800 15 880 Front H 1 9 1 1 1 3 m S 0 027 0 238 0 026 0 023 0 021 0 062 S ync Pulse H 3 3 4 3 3 6 m S 0 080 0 079 0 106 0 069 0 064 0 ...

Page 26: ... ync Pulse dot 64 64 136 96 96 112 uS 1 12 1 14 1 81 1 22 1 745 1 04 Back dot 224 152 144 176 96 248 uS 3 91 2 70 1 92 2 23 1 745 2 30 Total H 667 631 806 800 530 1066 m S 13 413 11 756 14 272 13 328 8 325 16 661 Disp H 624 600 768 768 480 1024 m S 12 548 11 179 13 599 12 795 7 540 16 005 Front H 1 1 3 1 8 1 m S 0 020 0 019 0 053 0 017 0 126 0 016 S ync Pulse H 3 3 6 3 6 3 m S 0 060 0 056 0 106 0 ...

Page 27: ... 11 852 10 836 Front dot 40 48 uS 0 593 0 508 S ync Pulse dot 80 96 uS 1 185 1 016 Back dot 136 208 uS 2 015 2 201 Total H 639 808 m S 9 997 11 765 Disp H 600 768 m S 9 386 11 183 Front H 3 1 m S 0 047 0 015 S ync Pulse H 4 3 m S 0 063 0 044 Back H 32 36 m S 0 501 0 524 Interlace NON N O N Polarity H V POS POS P O S P O S C om posite S ync C om posite Video C haracter Font 7 9 7 9 Serration OFF O ...

Page 28: ...oss hatch 2 When OSM MENU is displayed Select the icon 3 Make sure that the picture tilt meets the following standards 2 Pincushion Balance Adjustment 1 When OSM MENU is displayed Select the icon 2 Make sure that the Pincushion Balance meets the following standards X 1 0m m X X 3 Parallelogram distortion Adjustment 1 When OSM MENU is displayed Select the icon 2 Adjust SW so that the vertical line ...

Page 29: ...t the trapezoid distortion meets the following standards AB CD 2mm AC BD 2mm B D A C 6 Preset Picture Size and Position Adjustment Factory Mode Setting Signal All Signals Cross hatch Perform the Preset Picture Size and Position Adjustment for above all signal 1 When OSM MENU is displayed Select the icon 2 Adjust the picture size and position as listed below by SW Picture size H 310 2mm V 232 2mm P...

Page 30: ...ce error Calculate by CH CV 1 Receive signal 14 Cross hatch pattern 2 Measure convergence error If it is out of spec adjust static convergence by 4 pole magnets and 6 pole magnets C H C V A B 310mm 232mm A Zone A circle 232 mm in the center of the CRT face center CH CV Within 0 35 mm CS No rule B Zone Areas outside of zone A within the rectangle of 310 mm 232 mm Safety with the list below C H 0 35...

Page 31: ... to PC without Printer Cable 2 EDID Write and Inspection Method 1 Run specified EDID write and Inspection program on PC DOS mode The monitor turns into the self test mode 2 Run the specified EDID write and inspection program under PC DOS mode 3 Key in the serial No or Scan serial No bar code 4 Press Return key to write the EDID data 5 Press F1 key to inspect DDC1 communication 6 Press F2 key to in...

Page 32: ...ure Month 4 Year of Manufacture 29 0 1 2 3 4 5 6 7 8 9 A B C D E F 00 00 FF FF FF FF FF FF 00 38 A3 E5 25 01 01 01 01 10 18 09 01 02 0C 21 18 78 EA 21 18 A1 55 4A 99 26 20 11 48 4C FF EE 00 31 59 45 59 61 59 71 4A 81 40 30 01 01 01 01 01 01 30 2A 00 98 51 00 2A 40 30 70 40 13 00 36 E8 10 00 00 1E 00 00 00 FD 00 37 78 1F 50 46 0B 00 0A 20 20 20 20 20 20 00 00 00 FC 00 4E 60 45 43 20 56 37 32 30 0A ...

Page 33: ... Input Procedure ex V720 B 1 Scan Bar code 18 digits NB70091T_ 0Y00001YE 2 Skip 9 digits then find the Serial No 0Y00001YE 3 Make Year hex Code from Year digit 0 à 0Ah 4 Make Week hex Code from Month digit 11 4 44 à 2Dh 5 Change Serial No to ASCII code 30h 59h 30h 30h 30h 30h 31h 59h 45h 6 Apply Serial No Information to the default EDID code 7 Download EDID from PC to Monitor 8 DDC1 Inspection 9 D...

Page 34: ...rouble shooting section before using this chart TABLE OF CONTENTS Page 1 NO OPERATION POWER LED FLASH 32 2 NO OPERATION POWER LED OFF 33 3 VIDEO NOISE OUT OF SYNC 34 4 NO VIDEO 35 5 NO RASTER 36 6 TROUBLE IN H V SYNC 37 7 PINCUSHION POOR 38 31 ...

Page 35: ...O C130 NEGATIVE CONNECT TO U105 pin 5 2 SCOPE SET AT 10V DIV 10US DIV PROBE CONNECT TO Q102 GATE AND U103pin 5 POWER LED FLASH CHECK U102 U102 PIN6 PULSE O P POWER SW TURN OFF FAILURE R136 ZD103 CHECK U102 PIN 7 VCC PIN 4 SAWTOOTH PIN 8 5V NO POWER SW TURN OFF MULTIMETER TEST Q307 Q102 D110 D111 D112 D113 ...

Page 36: ...0MA POSITIVE CONNECT TO C112 NEGATIVE CONNECT TO C105 2 SCOPE SET AT 10V DIV 10US DIV PROBE CONNECT TO Q101 GATE AND C105 POWER SW TURN OFF CHECK F101 CHECK Q101 CHECK U101 U101 PIN6 PULSE O P POWER SW TURN ON FAILURE R111 ZD101 CHECK U101 PIN 7 VCC PIN 4 SAWTOOTH PIN 8 5V NO 33 ...

Page 37: ...NCY C114 TO GND CHECK Q102 G S FREQUENCY SYNCRONIZE WITH H SYNC CHECK HORIZONTAL FREQUENCY C132 TO GND CHECK C132 R139 D115 R138 R140 NORMAL OPERATION CHECK Q101 G S FREQUENCY SYNCRONIZE WITH H SYNC CHECK C114 R116 D109 R115 R117 YES YES NO NO NO NO 34 ...

Page 38: ... U201 PIN 18 20 23 SIGNAL LEVEL PROBLEM IN U201 CLAMP PIN 15 U201 12V VOLTAGE YES CHECK U203 PIN 1 3 5 SIGNAL LEVEL CHECK CATHODE VIDEO LEVEL PROBLEM IN CRT YES YES PROBLEM IN R220 R240 R260 NO PROBLEM IN U203 12V 77V VOLTAGE NO NO TROUBLE IN R G B SIGNAL SIGNAL CABLE NO REFER TO NO RASTER ON PAGE NO 35 ...

Page 39: ...AGE 56V 68V AT H FREQ 31 5KHz PROBLEM IN MCU U701 PROBLEM IN U301 U402 PROBLEM IN U102 Q102 D114 D111 L102 OR DEFLECTION YOKE PROBLEM IN Q307 Q308 T302 D307 D308 Q309 Q325 CHECK Q307 COLLECTOR ABOUT 1050Vp p CHECK G1 VOLTAGE ABOUT 45 65V PROBLEM IN Q305 Q306 ZD303 D318 T301 C344 PROBLEM IN G2 VOLTAGE YES YES YES YES YES YES YES NO NO NO NO NO NO 36 ...

Page 40: ...1 PIN 40 39 H V SYNC SIGNAL PROBLEM IN H V SYNC LINE Q301 Q401 CHECK U701 PIN 32 33 H V SYNC SIGNAL CHECK U701 PIN 5 VOLTAGE 5V CHECK U301 PIN 3 U402 PIN 4 CHECK U701 PIN 8 FREQ 4MHz PROBLEM IN U301 U402 PROBLEM IN U701 PROBLEM IN U203 12V 77V VOLTAGE PROBLEM IN 5V LINE YES NO YES YES YES YES YES YES NO NO NO NO NO 37 ...

Page 41: ...7 POOR PINCUSHION POOR PINCUSHION PARABOLA WAVE CHECK U402 PIN 9 PARABOLA CHECK U401 PIN 4 SYNC INPUT CHECK U701 PIN 32 OUTPUT CHECK C431 R432 CHECK 12V U402 CHECK Q314 Q316 D308 NO NO NO YES YES YES 38 ...

Page 42: ...ection signal processing 57 5 Vertical compensation and geometrical compensation of the raster 59 6 Horizontal drive and power supply output 62 7 Horizontal amplitude control 63 8 Blanking and spot killer 64 9 Video amplifier system with on screen display 65 10 Monolithic triple 13 5nS CRT driver 67 11 On screen display 71 39 ...

Page 43: ...n the other electronic equipment AC rectifier and smoothing capacitor The AC input is rectified by means of the full bridge rectifier that consists of the diodes D101 to D104 The AC voltage is converted into the DC voltage by passing through the next stage that consists of the smoothing capacitor C105 TH101 is a NTC thermistor for the power supply at the in rush current limit Degaussing circuit Th...

Page 44: ...Q112 and diode D119 and resistor R131 R149 and zener diode ZD105 are for the starting operation When the circuit starts its operation the power supply transformer T101 supplies the auxiliary 12 Volt power to the control IC chip U101 via pins 6 and 7 of the winding transformer T101 5 Synchronization circuit The synchronization signal is induced from the fly back transformer FBT and carries out the ...

Page 45: ...ble from 62 volts to 160 volts it is variable depending on the horizontal synchronism The frequency band is variable from 31 kHz to 69 kHz The voltage is fed back from the fly back transformer FBT The DC DC output voltage is used as high voltage input of FBT T301 1 DC DC is a step up circuit and consists mainly of the choke L106 the transistor Q102 the diode D114 and U102 2 When the PWM controls U...

Page 46: ...put 2 pins for A D key input SELECT UP DOWN and RECALL 3 Burn in ID input 1 pins for Burn in ID input 4 Reset input low pulse for reset MCU 5 Crystal input 2 pins using 8MHz crystal Output MCU digital pin 1 Degauss Active high pulse for 2 5 sec when in degauss MCU will activate degauss while power on 2 CS output 3 pins CS2 CS1 CS0 for CS control H sync CS2 CS1 CS0 H sync 33 25KHz 0 0 0 33 25KHz H ...

Page 47: ...V size Pincushion Trapezoid Rotation Parallel Pin balance R gain G gain and B gain DAC value 255 means the maximum output volts except Parallel PWM All D A except Rotation Brightness Contrast R gain G gain B gain are mode dependent functions Parallel is voltage inverter function 6 Sync output 2 pins for H sync and V sync negative output normal high 7 DDC 2 pins DDC SDA DDC SCL for DDC1 DDC2B or au...

Page 48: ...35k 35 0KHz 66Hz 5 800 600 56 35 2KHz 56Hz 6 8514A 35 5KHz 87Hz 7 640 480 75 37 5KHz 75Hz 8 EVGA 400 37 8KHz 84Hz 9 800 600 60 37 8KHz 60Hz 10 640 480 85 43 3KHz 85Hz 11 800 600 75 46 8KHz 75Hz 12 1024 768 60 48 3KHz 60Hz 13 MACII 49k 49 7KHz 74Hz 14 800 600 85 53 6KHz 85Hz 15 1024 768 70 56 4KHz 70Hz 16 1024 768 75 60 0KHz 75Hz 17 640 480 120 63 7KHz 120Hz 18 1280 1024 60 64 0KHz 60Hz 19 800 600 ...

Page 49: ...set Low reset I 5 Vdd 5V I 6 Vss Ground I 7 Osc O 8MHz Crystal out O 8 Osc I Crystal in I 9 PB5 EEPROM OSD SDA I O 10 PB4 EEPROM OSD SCL O 11 PB3 Test Pattern O 12 PB2 CS1 O 13 PB1 CS0 O 14 PB0 PMU OFF O 15 IRQ CS2 O 16 PC7 MUTE2 O 17 PC6 Degauss out O 18 PC5 MUTE1 O 19 PC4 PMU suspend O 20 PC3 Burn in ID I 46 ...

Page 50: ...face Watch dog timer 0 524 second Maximum 25 programmable I O pins One 8 bit programmable timer Two 4 bit A D converter One external interrupt request Built in low VDD voltage reset 5V power supply PIN ASSIGNMENT PC1 AD1 SDA1 PD1 PA3 DA11 PA5 DA13 PA7 HSO VSYNC HSYNC DA3 DA4 DA5 NC DA6 DA7 PA6 VSO PA4 DA12 PA2 DA10 DA1 DA9 PA0 DA8 SCL1 PD0 PC0 AD0 PC2 RESET DA2 DA1 DA0 VDD NC GUD OSCO OSCI PB5 SDA...

Page 51: ...PC3 I O I O Port C3 Same as PC7 21 22 PC2 I O I O Port C2 Same as PC7 22 23 PC1 AD1 I O I O Port C1 or A D converter input 0 23 24 PC0 AD0 I O I O Port C0 or A D converter input 1 24 25 SDA1 PD1 I O DDC serial clock or I O Port D1 When it is a DDC interface pin It is an open drain output When as an I O port it is same as Port B 25 26 SCLI PD0 I O DDC serial clock or I O Port D0 When it is a DDC in...

Page 52: ...al to positive polarity extract Vsync Pulse width less than 8us will be filtered but the Vsync will be widened about 8us count the pulses during the separated Vsync is low and save the counter value NH bypass the composite sync pulses before the counter equals to NH start inserting Hsync pulses after the counter equals to NH until the separated Vsync is low the period of inserted Hsync is decided ...

Page 53: ...1250 counter value Hz The frequency range Hfreq range 122 07 Hz to 124 8 kHz Resolution 122 07Hz Vfreq range 30 5 Hz to 31 25 kHz If counter overflowed the OVF1 bit will be set to 1 The counter keeps on counting until it overflowed again The OVF2 bit and FRDY bit will be set when counter overflowed twice This is designed for finding the vertical frequency bellows 15 25Hz The program should check R...

Page 54: ...te Picture Black Picture The test pattern signal is generated when SELF and ENPAT are both set to 1 This video signal will synchronize to the free running Hsync and Vsync no matter which frequency is chosen The following diagram shows the timing relationship of cross hatch picture HSO PAT T1 T2 T1 T3 T2 HSO VSO T1 T2 T3 31 1kHz 60 8Hz 6us 1us 62 5ns 47 9kHz 74 9Hz 5 125us 0 625us 62 5ns 64kHz 62 5...

Page 55: ...ft register will load a data byte from data buffer REG 18H After loading data to the shift register the data buffer becomes empty and generates and INT0 interrupt So the program must write one data byte into REG 18 every nine VSYNC clocks Since the default values of data buffer REG 22 and shift register are FFH the SDA pin outputs high level if no data had been written into data buffer after power...

Page 56: ...led and set START bit to 1 When the STOP condition is detected the DDC interface is disabled set STOP bit to 1 and generate INT0 interrupt The START bit is cleared when the following data byte received The STOP bit is cleared after writing REG 19H 2 Address Recognition It contains two device addresses in WT6018 On fixed address 1010000 is for EDID reading and one programmable address REG 19H is fo...

Page 57: ... DDC1 state The INT0 occurs when the shift register load data from data buffer Write REG 18H will clear the transmit buffer empty condition Acknowledge is detected in DDC2B state The INT0 occurs on the falling edge of the SCL clock after the acknowledge had been detected The SCL pin will be pulled low to force the bus master to wait until the service routine write REG 19H STOP condition occurs in ...

Page 58: ...1 ADDR 0 R W 0 START 0 STOP 0 DDC2B 1 ADDR 0 R W 0 START 0 STOP 0 DDC2B 1 ADDR 0 R W 0 START 1 STOP 0 DDC2B state write timing Pull low SCL Pull low SCL Data Byte Data Byte SCL 1 1 0 0 0 0 0 SDA In SDA Out INTO Write REG 19H to release Data buffer to shift reg 1 A A N DDC2B 1 ADDR 0 R W 1 START 0 STOP 1 DDC2B 1 ADDR 0 R W 1 START 0 STOP 0 DDC2B 1 ADDR 0 R W 1 START 1 STOP 0 DDC2B state write timin...

Page 59: ...ly erasable and programmable read only memory EEPROM organized as 128 256 512 1024 2048 words of 8 bits each The device is optimized for use in many industrial and commercial applications where low power and low voltage operation are essential The AT24C01A 02 04 08 16 is available in space saving eight pin PDIP eight pin and fourteen pin SOIC packages and is accessed via a two wire serial interfac...

Page 60: ...able frequency ramming H VO dt System Block Diagram 5 DISABLE LATCH 4 H DRIVE 7 9 6 DUTY CNTL 12 H DRIVE PD2 FILTER FLYBACK PD1 FILTER VCO IN PD2 PD1 10 1 VCO S H V DETECT H SYNC 3 FCV 2 11 1 8V 14 13 8 VOLTAGE REFERENCE X RAY SD VCC V GND FVC FILTER H HV SYNC H HV POLARITY fMIN PHASE CNTL Typical Application LM1290 H POLARITY OUTPUT H HV SYNC INPUT VCC DUTY CYCLE CONTROL X RAY PROTECTION FLYBACK ...

Page 61: ...V Duty 2 17 10 V 30 51 7 to 56 7 5 X ray shutdown Specification 1 65 to 1 8V shutdown When B HV 25 kV we have Vout 25 VDC therefore when shutdown HV 27 5 kV we have Vout 30 8 VDC When R1 10 7KΩ and R2 10KΩ we have shutdown VOL 26 8 to 28 2KV 6 Fly back input threshold voltage 10 Vp p Vin Vcc 12V R484 24KΩ Vin 11 Vp p 7 Horizontal drive Low level current Minimum 100mA Low level voltage Maximum 0 4V...

Page 62: ...Ω R5 10KΩ VR2 200KΩ S Amplitude Adj C4 10uF C5 10uF VR3 5KΩ R7 10KΩ 300KΩ R6 C6 4 7uF C7 0 47uF 0 1uF C8 R8 10KΩ R9 10KΩ VR4 200KΩ S Center Adj TO V Deflection Output Amp Rvert Rvert Gnd V Drive 4V Cap 8V Cap V Drive Vref Cap OSD Cap 21 Cap V Sync in ALC Cap V Height Gnd Vcc V Dyn Height V Dyn Focus V Dyn Focus Cntl V Sync in Osc V Height Auto Level Gain Adjus Vertical output Gnd V Dyn Height X 4 ...

Page 63: ...IN 10 both in the DC control mode 7 E W PIN CNTRL Pin 10 This is the E W direction pincushion deformation control function and the voltage range is within the 0V 4V range When the voltage falls within the 2V 4V range the amplitude increases and the parabola becomes positive On the other hand when the voltage falls within the 2V 0V range the parabola be comes negative 8 TRAP CNTRL Pin 11 This is th...

Page 64: ...in 16 14 ALC Cap Pin 18 This is the Automatic level Controller ALC capacitor and the recommended value is 4 7 uF 15 Frequency doubling capacitor This is the vertical oscillator that locks at a frequency twice as high as the vertical synchronization frequency Its capacitance is 0 47 uF 16 OSC Cap Pin 20 The value of the capacitance is 0 1 uF 17 Rvert Pin 21 22 The vertical resistor has the function...

Page 65: ...g signal IB1 ICPMAX Q1hfeMIN IB2 Ü Ü Ü Ü Ü3IB1 di dt Ü Ü Ü Ü Ü3 3 A US 2 The resistor R2 corrects the current IB1 the resistor R3 works as a damping resistor and leak resistor and the diode D2 works as a discharging device and polar body As long as the transistor Q1 is OFF the discharge is accelerated and the storage time Tstg is shortened 3 H OUT circuit waveform VCC T1 R2 D2 R1 Q2 R3 Q1 CT D1 DR...

Page 66: ...Ô Ô Ô ÔLmCm 2 Q2 Q3 Q4 and U1 compose the control circuit of H WIDTH Of those devices the transistor Q1 and Q2 compose the Darlington current amplifier and on the other hand the transistor Q4 and the opera tional amplifier U1 compose the emitter coupled circuit that stabilize the voltage and control the current 3 The horizontal width broadens when Va VbI I1 I2 Vm An inference in the opposite sense...

Page 67: ...ct 3 The Q6 is spot killer protect circuit in normal power on stage V1 V2 and ZD1 so Q6 off The CRT G1 voltage is fixed at 45 67VDC with vertical blanking pulse 12Vpp VG1 V R11 R10 R11 V V1 V3 When power off the voltage V1 V2 then Q6 turn on pulling VG1 to 180V to protect CRT 4 When Mute set to lower the Q3 off G1 180V screen cut off no picture display this mute circuit makes active at power ON OF...

Page 68: ... Cap Blue Video Out Blue Clamp Cap Blank Gate Clamp Gate Contrast Attenuation Contrast Attenuation Contrast Attenuation Drive Attenuation Contrast Attenuation Contrast Attenuation Top View A1 A1 A1 A2 A2 A2 Description of the functions Figure 1 shows the block diagram of LM1281 in conformity with the pin layout of the IC Every channel accepts both the video signal and the OSD signal at the input a...

Page 69: ...0K POT4 100K POT2 100K POT1 100K POT3 100K R21 47k R19 430 R20 2 4k L1 R17 2 4k R16 2 4k R18 430 430 R15 R17 100 R17 100 R9 33 R10 50 75 R11 100k R8 50 75 R7 33 R5 50 75 R6 R4 R3 R2 R1 L1 is a Ferrite Bead 50Ω Termination to be Used at Outputs TL H 12355 12 C12 0 1µF C11 0 1µF C10 0 1µF C8 0 1µF VCC C9 10µF C6 100µF C7 0 1µF C4 C5 0 1µF C3 J1 C13 0 1µF C14 0 1µF C15 0 1µF C16 100µF C17 0 1µF C18 0...

Page 70: ...10 Monolithic triple 13 5nS CRT driver 67 ...

Page 71: ...68 ...

Page 72: ...69 ...

Page 73: ...70 ...

Page 74: ... with both SPI bus and I C interface through pin selection 16 pins PDIP package GENERAL DESCRIPTION MTV016 is designed for use in monitor applications to display the built in characters or symbols onto monitor screen The display operation is by transferring data and control information in micro controller to RAM through a serial data interface It can execute full screen display automatically and s...

Page 75: ...us operation If this pin is left floating I C bus is enable Otherwise the SPI bus is enabled SDA I 7 Serial data input The external data transfer through this pin to internal display registers and control registers It has an internal 100 kΩ pull up resistor SCK I 8 Serial clock input The clock input pin is used to synchronize the data transfer It has an internal 100 kΩ pull up resistor VDD 9 Digit...

Page 76: ...u 100V M C253 1 25 CRT BOARD A I GA210575 ELECT 105oC T 1u 100V M C254 1 26 CRT BOARD A I GB210458 CERAMIC Y5V T 0 1u 50V Z C267 1 27 CRT BOARD A I GB910358 CERAMIC Z5V F T 0 01u 50V Z C270 1 28 CRT BOARD A I GE210252 PLASTIC PEI T 0 001u 50V J C271 1 29 CRT BOARD A I GB7471F3 CERAMIC Y5P B T 470P 500V K C272 1 30 CRT BOARD A I GB7102F3 CERAMIC Y5P B T 1000P 500V K C275 1 31 CRT BOARD A I GB7102H3...

Page 77: ...D233 OR 78 CRT BOARD A I 80000451 DIODE T 1 2W 1SS83 D234 1 79 CRT BOARD A I 80000051 DIODE T 1 2W 1SS82 D234 OR 80 CRT BOARD A I 80001211 DIODE T 1 2W BAV21 PHILIPS D234 OR 81 CRT BOARD A I 80004711 ROHM DIODE 1SS244 D234 OR 82 CRT BOARD A I EJ044148 DIODE T 1N4148 D250 1 83 CRT BOARD A I EJ044148 DIODE T 1N4148 D251 1 84 CRT BOARD A I 80000451 DIODE T 1 2W 1SS83 D252 1 85 CRT BOARD A I 80000051 ...

Page 78: ... 5 100ohm R209 1 131 CRT BOARD A I FB247509 METAL 1 4W T 1 75ohm R210 1 132 CRT BOARD A I FA040330 CARBON 1 8W T 5 33ohm R211 1 133 CRT BOARD A I FA040101 CARBON 1 8W T 5 100ohm R212 1 134 CRT BOARD A I FA040391 CARBON 1 8W T 5 390ohm R213 1 135 CRT BOARD A I FA040333 CARBON 1 8W T 5 33Kohm R219 1 136 CRT BOARD A I FA240151 CARBON 1 4W T 5 150ohm R220 1 137 CRT BOARD A I FA040111 CARBON 1 8W T 5 1...

Page 79: ...L 100uH 8X10 L202 1 183 CRT BOARD INSERT FB910229 FUSIBLE MF RES 1 4W 2 2ohm J R297 1 184 CRT BOARD INSERT R0224129 BASE PIN 6P HOUSING P 2 5mm S201 1 185 CRT BOARD INSERT R0224127 XH BASE PIN 4P S202 1 186 CRT BOARD INSERT R0224129 BASE PIN 6P HOUSING P 2 5mm S204 1 187 CRT BOARD INSERT R0224130 BASE PIN 7P HOUSING P 2 5mm S205 1 188 CRT BOARD INSERT 80000631 IC LM1281 U201 1 189 CRT BOARD INSERT...

Page 80: ...C Y5P B T 470P 50V K C135 1 237 MAIN BOARD A I GA347725 ELECT 85oC T 470u 16V M C136 1 238 MAIN BOARD A I GA347625 ELECT 85oC T 47u 16V M C137 1 239 MAIN BOARD A I GAH47725 ELECT 105oC T 470u 16V M TK C139 1 240 MAIN BOARD A I GAJ47725 ELECT 105oC T 470u 16V M PF C139 OR 241 MAIN BOARD A I GE210352 PLASTIC PEI T 0 01u 50V J C140 1 242 MAIN BOARD A I GA310725 ELECT 85oC T 100u 16V M C141 1 243 MAIN...

Page 81: ... OR T 290 MAIN BOARD A I GA347585 ELECT 85oC T 4 7u 250V M C344 1 291 MAIN BOARD A I GE222352 PLASTIC PEI T 0 022u 50V J C348 1 292 MAIN BOARD A I GE233352 PLASTIC PEI T 0 033u 50V J C350 1 293 MAIN BOARD A I GA310555 ELECT 85oC T 1u 50V M C352 1 294 MAIN BOARD A I GB633152 CERAMIC SL T 330P 50V J C353 1 295 MAIN BOARD A I GE222352 PLASTIC PEI T 0 022u 50V J C354 1 296 MAIN BOARD A I GB7102H3 CERA...

Page 82: ... GB610152 CERAMIC SL T 100P 50V J C708 1 342 MAIN BOARD A I GB910358 CERAMIC Z5V F T 0 01u 50V Z C724 1 343 MAIN BOARD A I GA347625 ELECT 85oC T 47u 16V M C725 1 344 MAIN BOARD A I GA310655 ELECT 85oC T 10u 50V M C726 1 345 MAIN BOARD A I GA310655 ELECT 85oC T 10u 50V M C727 1 346 MAIN BOARD A I GA310655 ELECT 85oC T 10u 50V M C728 1 347 MAIN BOARD A I EJA20003 DIODE T 1A BA159 D105 1 348 MAIN BOA...

Page 83: ...MAIN BOARD A I EJ044148 DIODE T 1N4148 D60A 1 398 MAIN BOARD A I EJA05819 DIODE STKY T 1A 40V 1N5819 D702 1 399 MAIN BOARD A I EJ044148 DIODE T 1N4148 D704 1 400 MAIN BOARD A I R0319110 JUMPER WIRE AI T 17 5mm J1 1 401 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J10 1 402 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J100 1 403 MAIN BOARD A I R0319110 JUMPER WIRE AI T 20mm J101 1 404 MAIN BOARD ...

Page 84: ...319110 JUMPER WIRE AI T 10mm J19 1 449 MAIN BOARD A I R0319110 JUMPER WIRE AI T 12 5mm J2 1 450 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J20 1 451 MAIN BOARD A I R0319110 JUMPER WIRE AI T 7 5mm J21 1 452 MAIN BOARD A I R0319110 JUMPER WIRE AI T 17 5mm J22 1 453 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J23 1 454 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J24 1 455 MAIN BOARD A I R03191...

Page 85: ...IRE AI T 7 5mm J72 1 502 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J73 1 503 MAIN BOARD A I R0319110 JUMPER WIRE AI T 12 5mm J74 1 504 MAIN BOARD A I R0319110 JUMPER WIRE AI T 17 5mm J75 1 505 MAIN BOARD A I R0319110 JUMPER WIRE AI T 10mm J76 1 506 MAIN BOARD A I R0319110 JUMPER WIRE AI T 12 5mm J77 1 507 MAIN BOARD A I R0319110 JUMPER WIRE AI T 12 5mm J78 1 508 MAIN BOARD A I R0319110 JUMPER ...

Page 86: ...A07336 TR PNP 2SA733P TO 92 T N P S Q117 OR 556 MAIN BOARD A I EAA23690 TR NPN PH2369 TO 92 T PHILIPS Q301 1 557 MAIN BOARD A I EAA18157 TR NPN 2SC1815GR TO 92 T T P S Q302 1 558 MAIN BOARD A I EAA09456 TR NPN 2SC945P TO 92 T N P S Q302 OR 559 MAIN BOARD A I EAA40020 TR NPN 2SC4002 TO 92 T SANYO Q303 1 560 MAIN BOARD A I EAA04220 TR NPN BF422 TO 92 T T P Q304 1 561 MAIN BOARD A I EBA04230 TR PNP B...

Page 87: ... BOARD A I FA040472 CARBON 1 8W T 5 4 7Kohm R119 1 608 MAIN BOARD A I FA330104 CARBON 1 2W T 5 100Kohm R120 1 609 MAIN BOARD A I FA040103 CARBON 1 8W T 5 10Kohm R122 1 610 MAIN BOARD A I FA040102 CARBON 1 8W T 5 1Kohm R123 1 611 MAIN BOARD A I FA240681 CARBON 1 4W T 5 680ohm R126 1 612 MAIN BOARD A I FA040223 CARBON 1 8W T 5 22Kohm R127 1 613 MAIN BOARD A I FA040472 CARBON 1 8W T 5 4 7Kohm R129 1 ...

Page 88: ... T 661 MAIN BOARD A I FA040103 CARBON 1 8W T 5 10Kohm R310 1 662 MAIN BOARD A I FB910010 METAL 1 4W T 5 1ohm R313 1 663 MAIN BOARD A I FB910010 METAL 1 4W T 5 1ohm R314 1 664 MAIN BOARD A I FA040105 CARBON 1 8W T 5 1Mohm R315 1 665 MAIN BOARD A I FA040395 CARBON 1 8W T 5 3 9Mohm R317 1 L S 666 MAIN BOARD A I FA040475 CARBON 1 8W T 5 4 7Mohm R317 1 T 667 MAIN BOARD A I FA040103 CARBON 1 8W T 5 10Ko...

Page 89: ... T 5 10Kohm R369 1 714 MAIN BOARD A I FA040822 CARBON 1 8W T 5 8 2Kohm R371 1 715 MAIN BOARD A I FA040222 CARBON 1 8W T 5 2 2Kohm R372 1 716 MAIN BOARD A I FB243161 METAL 1 4W T 1 3 16Kohm R373 1 717 MAIN BOARD A I FB241002 METAL 1 4W T 1 10Kohm R374 1 718 MAIN BOARD A I FA040104 CARBON 1 8W T 5 100Kohm R375 1 719 MAIN BOARD A I FA040103 CARBON 1 8W T 5 10Kohm R377 1 720 MAIN BOARD A I FA040103 CA...

Page 90: ...Kohm R449 1 767 MAIN BOARD A I FA040823 CARBON 1 8W T 5 82Kohm R450 1 768 MAIN BOARD A I FA240103 CARBON 1 4W T 5 10Kohm R451 1 769 MAIN BOARD A I FA040472 CARBON 1 8W T 5 4 7Kohm R452 1 770 MAIN BOARD A I FA040473 CARBON 1 8W T 5 47Kohm R454 1 771 MAIN BOARD A I FA040304 CARBON 1 8W T 5 300Kohm R455 1 772 MAIN BOARD A I FA040822 CARBON 1 8W T 5 8 2Kohm R456 1 773 MAIN BOARD A I FA040103 CARBON 1 ...

Page 91: ... 7Kohm R769 1 822 MAIN BOARD A I FA040472 CARBON 1 8W T 5 4 7Kohm R770 1 823 MAIN BOARD A I FA040471 CARBON 1 8W T 5 470ohm R771 1 824 MAIN BOARD A I R0319110 JUMPER WIRE AI T 7 5mm VR307 1 L S 825 MAIN BOARD A I EKA0180B ZEN DIODE 1 2W T HZS 18 2 HITACHI ZD101 1 826 MAIN BOARD A I EKC0180B ZEN DIODE 1 2W T BZX79F18 PHILIPS ZD101 OR 827 MAIN BOARD A I EKA01201 ZEN DIODE 1 2W T HZS12A2 HITACHI ZD10...

Page 92: ... MPE A 0 15u 250V J C329 1 873 MAIN BOARD INSERT GFD274E2 PLASTIC 378 A 0 27u 400V J PILKOR C332 1 874 MAIN BOARD INSERT GFD27482 PLASTIC PMM A 0 27u 250V J MYLAR C332 OR 875 MAIN BOARD INSERT GFA10582 PLASTIC MPE A 1u 250V J C333 1 876 MAIN BOARD INSERT GFA10382 PLASTIC MPE A 0 01u 250V J C345 1 877 MAIN BOARD INSERT GFB10482 PLASTIC MPP A 0 1u 250VJ C351 1 878 MAIN BOARD INSERT GFB56482 PLASTIC ...

Page 93: ...FET N 2SK2645 01 MR TO 220F Q101 OR 926 MAIN BOARD INSERT EF211180 FET N 2SK1118 TO 220F Q101 OR 927 MAIN BOARD INSERT 12800041 HEAT SINK 23 17 25 Q102 1 928 MAIN BOARD INSERT 14000041 SCREW P 2CBRITS 3 8 15BF Q102 1 929 MAIN BOARD INSERT EF206301 FET N YTAF630 TO 220F Q102 1 930 MAIN BOARD INSERT EB307720 TRPNP KSB772 TO 126 Q104 1 931 MAIN BOARD INSERT 80000201 TR PNP 2SB1273 S R Q104 OR 932 MAI...

Page 94: ...ERT 80010621 WAFER 2L 3P 2 54mm SW301 1 979 MAIN BOARD INSERT 80000251 TACT SW 1P 100G 50 SW701 1 980 MAIN BOARD INSERT 80000251 TACT SW 1P 100G 50 SW702 1 981 MAIN BOARD INSERT 80000251 TACT SW 1P 100G 50 SW703 1 982 MAIN BOARD INSERT 80009981 POWER X FM ERL35 500uH N0501 T101 1 B Ver 983 MAIN BOARD INSERT 80010461 17 70K N0701 FBT T301 1 L S 984 MAIN BOARD INSERT 80010561 17 N0701 TOSHIBA FBT T3...

Page 95: ...91 CUSHION SHEET FOR BASE 4 1033 REVOLVING STAND ASSY 17000451 CUSHION SHEET FOR BASE 4 1034 REVOLVING STAND ASSY 11000251 REVOLVING STAND B 94HB 1 1035 REVOLVING STAND ASSY 11000261 REVOLVING STAND T 94HB 1 1036 REVOLVING STAND ASSY 11000262 REVOLVING STAND T 94HB 1 1037 REVOLVING STAND ASSY 11000361 REVOLVING STAND B 94HB 1 1038 REVOLVING STAND ASSY 11000362 REVOLVING STAND B 94HB 1 1039 SET ASS...

Page 96: ...BRACKET CABLE 1 1066 SET ASSY 12300202 PLATE SHIELDING VIDEO 1 1067 SET ASSY 15000841 NAME PLATE INSTRUCTION V720 1 B 1 B 1068 SET ASSY 15000991 NAME PLATE INSTRUCTION V720 1 C 1 C 1069 SET ASSY 15200031 LABEL REV 1 1070 SET ASSY 17000301 CUSHION PIECE BACK 1 1071 SET ASSY 18000311 PCB SUPPORT SS 8 1 1072 SET ASSY 18000421 SWITCH EXPANDING COVER 1 1073 SET ASSY 18000261 ANODE CLAMPER SPA 11G 2 REV...

Page 97: ...Y 17000451 CUSHION SHEET FOR BASE 4 27 REVOLVING STAND ASSY 11000251 REVOLVING STAND B 94HB 1 28 REVOLVING STAND ASSY 11000261 REVOLVING STAND T 94HB 1 29 REVOLVING STAND ASSY 11000262 REVOLVING STAND T 94HB 1 30 REVOLVING STAND ASSY 11000361 REVOLVING STAND B 94HB 1 31 REVOLVING STAND ASSY 11000362 REVOLVING STAND B 94HB 1 32 SET ASSY 80009271 SIGNAL CABLE 20276 1 5M FOR N9701 VE CABLE 1 33 SET A...

Page 98: ...000321 CABLE TIES GT 100M TIE 10 64 SET ASSY 15200031 LABEL REV 1 65 SET ASSY 15000981 NAME PLATE INSTRUCTION V721 R 1 66 SET ASSY 15200471 LABEL WARNING 27 5KV 600uA 1 67 SET ASSY 15200331 LABEL SERIAL BARCODE 1 68 SET ASSY 15200681 LABEL TCO99 FOR CABINET 1 69 SET ASSY 15200201 LABEL EMC V500R 1 R 70 SET ASSY 10100924 CABINET BACK 1 71 SET ASSY 10101101 CABINET FRONT ASSY PC ABS 1 72 SET ASSY 12...

Page 99: ...Y 11000262 REVOLVING STAND T 94HB 1 26 SET ASSY 80009271 SIGNAL CABLE 20276 1 5M FOR N9701 VE CABLE 1 27 SET ASSY 80004471 TOSHIBA M41LRK107X404 XF4 CRT 1 28 SET ASSY 80011201 17 N0701 TCO DEGAUSSING TOSHIBA CRT DEGUESSING COIL 1 29 SET ASSY 14000011 SCREW 2CBRITS 4 16 15BF FOR BACK 2 30 SET ASSY 14000071 SCREW PL CPTS3 8 15BF FOR BKT CAB 2 31 SET ASSY 14300031 SCREW PL CPIMS 4 10 15BF FOR BKT CAB...

Page 100: ...KET PCB 1 57 SET ASSY 12000551 BRACKET CABLE 1 58 SET ASSY 12300202 PLATE SHIELDING VIDEO 1 59 SET ASSY 17000301 CUSHION PIECE BACK 1 60 SET ASSY 18000311 PCB SUPPORT SS 8 1 61 SET ASSY 18000421 SWITCH EXPANDING COVER 1 62 SET ASSY 18000261 ANODE CLAMPER SPA 11G 2 63 SET ASSY 18000361 HOLDER PCB FOR TCO CBS 5C 3 REVISED BY ECN NO NN1050002 SORT BY ASSY CODE 97 ...

Page 101: ...SSOR LM1290 LM1295 H V EW OUT HOUT V GEOMETRY SYSTEM ARCHITECTURE MCU E ROM DDC WT6016 24C04 MOTHER BOARD KEY BOARD I C HOR DEFLECT STAGE B KA3843 DYNAMIC FOCUSING VERT OUT TDA 4866 EH T D F R G B FBLK OSD MTV 016 RGB PREAMP LM1281 CUT OFF RGB OUT LM2438 CUT OFF R G B KA3842 H HV V ...

Page 102: ...99 SCHEMATIC DIAGRAMS 1 Video Board ...

Page 103: ...100 2 Main Board ...

Search results

Summary of Contents for Diamand Scan 71

Reviews:

Related manuals for Diamand Scan 71

Brands by name

Popular brands

NEC Diamand Scan 71, Service Manual

Search results

Summary of Contents for Diamand Scan 71

Reviews:

Related manuals for Diamand Scan 71

Brands by name

Popular brands