 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| 1. picture tube size : 19 inch (flat slot mask) defiection angle : 90 neck diameter : 29.1 mm phosphor : p22 stripe pitch : 0.24 mm low radiation : tco-99, mpr-ii face treatment : ar-asc coating 2. signal 2-1. horizontal & vertical sync 1) input voltage level : low= 0.8v, high= 2.1v 2) sync polarity : positive or negative 2-2. video input signal 1) voltage level : 0 ~ 0.7 vp-p a) color 0, 0 : 0 vp-p b) color 7, 0 : 0.467 vp-p c) color 15, 0 : 0.7 vp-p 2) input impedance : 75 ? 3) video color : r, g, b analog 4) signal format : refer to the timing chart 2-3. signal connector 15 pin d-sub connector, attached 2-4. scanning frequency horizontal : 30 ~ 96 khz vertical : 50 ~ 160 hz 3. power supply 3-1. power range ac 90~264v, 50/60hz 2.0a (non pfc) ac 200~240v 50hz 1.5a (pfc version) 3-2. power consumption 4. display area 4-1. active video area : ?max image size - 366.0 x 274.5mm (14.40" x 10.80") ?preset image size - 350 x 262 mm (13.78" x 10.31") 4-2. display color : full colors 4-3. display resolution : 1600 dots x 1200lines/75hz 4-4. video bandwidth : 203mhz 5. environment 5-1. operating temperature: 10? ~ 35? (50? ~ 95?) (ambient) 5-2. relative humidity : 8% ~ 80% (non-condensing) 5-3. altitude : 5000m 6. dimensions (with tilt/swivel) width : 470 mm (18.60") depth : 470 mm (18.60") height : 480 mm (18.90") 7. weight (with tilt/swivel) net weight : 25.7 kg (56.67 lbs) gross weight : 28.6 kg (63.06 lbs) 8. usb specifications usb standard : rev. 1.0 complied self-powered hub downstream power supply : 500ma for each (max) communication speed : 12 mbps (full), 1.5 mbps (low) usb port : 1 upstream port 4 downstream ports specifications mode normal (on) stand-by suspend off h/v sync on/on off/on on/off off/off power consumption less than 140w less than 8w less than 8w less than 3w led color green orange orange
wiring diagram - 10 - p612 p801 p992 p306 p301 p303 anode cap tilt purity purity cdt earth convergence dy (conv h/v) degauss p319 p610 p611 p402 p401 p101 p404 p403 p302 p704 p991 p990 main pcb p904 p903 degauss pfc block diagram - 14 - description of block diagram - 15 - 1. line filter & associated circuit this is used for suppressing noise of power input line flowing into the monitor and/or some noise generated in this monitor flowing out through the power input line. that is to say, this circuit prevents interference between the monitor and other electric appliances. 2. degauss circuit & coil the degauss circuit consists of the degaussing coil, the ptc (positive temperature coefficient) thermistor (th901), and the relay(rl901). this circuit eliminates abnormal color of the screen automatically by degaussing the slot mask in the crt when turn on the power switch. when you need to degauss while using the monitor select degauss in the special on the osd menu. 3. smps(switching mode power supply). this circuit works with power of 90~132vac/ 196~ 264vac (50/60hz). the operation procedure is as follows: 1) ac input voltage is rectified and smoothed by the bridge diode (d901) and capacitors (c912). 2) the rectified voltage (dc voltage) is applied to the primary coil of the transformer (t901,t902). 3) the control ic (ic901) generates switching pulse to turn on and off the primary coil of the transformer (t902) repeatedly. 4) depending on the turn ratio of the transformer , the secondary voltages appear at the secondary coil of the transformer (t902). 5) these secondary voltages are rectified by each diode (d922.923,924,926,925,933) and operate the other circuits. (deflection , video amplifier ,..... etc.). the switching ic (ic901) controls input-pulse-width and generates secondary voltages by sub-transformer (t901). 4. display power management circuit. this circuit control power consumption of the monitor by detecting h and v sync signal. there are stand-by and suspend mode. when no horizontal or vertical sync signal input, the circuit consists of q903 and ic913 becomes stand-by and suspend mode. its power consumption is below 8w. 5. x-ray protection. this circuit detects the rectified dc voltage comes from the fbt pin 6. if the high volltage of the fbt reaches up to about 30kv (abnormal state), high voltage control pwm ic (ic1001) detects it. and pwm ic (ic1001) prevent output voltage to the gate of switching fet (q507). it stops operating primary circuit of the fbt (t703), and high voltage is not be generated.(in the normal state, the high voltage is about 27kv.) 6. micom (microprocessor) circuit. the operating procedure of micom (microprocessor) and its associated circuit is as follows: 1) h and v sync signal is supplied from the d-sub to the micom (ic201). 2) the micom (ic201) distinguishes polarity and frequency of h and v sync. 3) the micom controls each osd function signals.(h-size, h-position, v-size, etc.) 4) the controlled data of each mode is stored in itself. user can adjust screen condition by each osd function. the data of the adjust screen condition is stored automatically. 7. horizontal and vertical synchronous processor this circuit generates the horizontal drive pulse and the vertical drive pulse by taking sync-signal from the signal cable. this circuit consists of the tda4856 (ic701) and the associated circuit. 8. oscillating circuit for d/d converter. this circuit generates the saw-tooth wave which has the horizontal period by taking the output of the tda4856 (ic701). 9. d/d (dc to dc) converter. this circuit supplies dc voltage to the horizontal deflection output circuit by decreasing dc 190v which is the secondary voltage of the smps in accordance with the input horizontal sync signal. 10. side-pincushion correcting circuit. this circuit improves the side-pincushion of the screen by mixing east-west wave to the output of the horizontal deflection d/d converter which is used for the supply voltage source (b+) of the deflection circuit. 11. d/d drive & convert circuit. this circuit is used for supplying b+ voltage to horizontal deflection output transistor(q707). this circuit makes to add side-pincushion correcting signal to b+ voltage. 12. horizontal deflection output circuit. this circuit makes the horizontal deflection by supplying the saw-tooth current to the horizontal deflection yoke. 13. high voltage output & fbt (fly back transformer). the high voltage output circuit is used for generating pulse wave to the primary coil of the fbt (fly back transformer (t703)). a boosted voltage (about 27kv) appears at the secondary of the fbt and it is supplied to the anode of the crt. and there are another output voltages such as the dynamic focus frequency. 14. h-linearity correction circuit. this circuit corrects the horizontal linearity for each horizontal sync frequency. - 16 - 15. vertical output circuit. this circuit takes the vertical ramp wave form the tda4856(ic701) and performs the vertical deflection by supplying the saw-tooth wave current form the tda8172 (ic601) to the vertical deflection yoke. 16. dynamic focus output circuit. this circuit takes h and v parabola wave from the tda4856(ic701) and amplifies these waves to offer to the fbt(t703). 17. h & v blanking and brightness control. this circuit eliminates the retrace line by supplying a negative pulse to the g1 of the crt. the brightness control circuit is used to control of the screen brightness by changing the dc level of g1. 18. tilt (image rotation) circuit. this circuit corrects the tilt of the screen by supplying the image rotation signal to the tilt coil which is attached to the crt near the deflection. 19. static convergence control circuit. this circuit corrects the convergence of the screen by supplying the convergence signal to the 4h(stc) coil which is attached to the crt near the deflection. 20. moir? reduction circuit. this circuit reduce interference between the periodical display pattern and the crt s slot (or dot). the positions of every other one dot video signal beams (red, green and blue beam) are shifted finely, thus reducing interference. 21. osd circuit. this circuit is used for performing the osd (on screen display) function. when a user selects the osd select/ adjustment control, the adjustment status displays on the screen. 22. video pre-amp circuit. this circuit amplifies the analog video signal from 0-0.7v to 0-4v. this circuit is operated by taking the clamp, r, g, b drives, and contrast signals from the micom (ic201). 23. video output amp circuit. this circuit amplifies the video signal which comes from the video pre-amp circuit and amplified video signal is applied to the crt cathode. troubleshooting guide - 19 - 1. no power no power (power indicator off) trouble in d901 trouble in fuse (f901) trouble in ic901 trouble in d923, d922, d924, d925, d927 trouble in ic903 check fuse ok? check c912 (+) voltage? no yes yes yes no no no check ic901 pin 3 waveform (square wave comes out?) check d923, d922, d924, d925, d927 voltage? yes - 20 - 2. no character check ic302 pin 3, 8, 12 (12v), pin 17 (5v)? check ic302 pin 2, 6, 11 ? check ic302 pin 29, 32, 35 ? trouble in p302, p303 5v, 12v line trouble in pc signal, signal cable trouble in ic302 trouble in cdt socket no yes no no yes yes check r, g, b cathode voltage? trouble in ic303 no yes no character - 21 - 3. no raster no video (power indicator green or orange) check power indicator green or orange ? check screen control knob of fbt check voltage at d924 cathode (190v) d925 cathode (80v) ic911 out (12v) ic960 cathode (6.3v)? check ic201(micom) pin 5 (5v), ic701 pin 16 (12v)? rotate screen control knob to clockwise trouble in ic201 (micom), ic701 (t/base), tda4856 trouble in secondary circuit of t901, t902 trouble in primary circuit of t901, t902 trouble in d-sub & 5-bnc signal cable orange min. (counter-clockwise) green ok yes no yes no - 22 - 4. no vertical deflection no v-deflection (one horizontal line) check ic601 pin 2 (15v) ? check ic601 pin 4 (-12v)? trouble in t901 pin 18 trouble in t901 pin 17 trouble in ic601, vertical output circuit no no yes yes check ic701 pin 12 (sawtooth wave)? trouble in ic701 no yes - 23 - 5. trouble in dpm check ic201 (micom) pin 42, 1 (h/v input) signal? check ic201 pin 6, 7 waveform? check ic201 pin 5 (5v, high)? check d922 cathode (15v) ? check pc, (pc is not going into dpm mode) trouble in x201, ic201 trouble in ic201 trouble in q903, ic913, d914 trouble in t901 or pc no h / v sync signal input h/v sync no no no dpms table mode item normal stand-by suspend off h / v sync on / on off / on on / off off / off led green orange orange orange video normal off(0v) off(0v) off(0v) yes yes check b + line (12v, 15v, 80v, 5v) ? trouble in r938 no yes stand-by/suspend/ off mode failure - 24 - 6. no degaussing check ic201 pin 10 (5v)? check q271 collector voltage (0.5v)? check p903, p904? check rl901? trouble in ic201 (micom) trouble in q271 trouble in p903, p904 trouble in rl901 trouble in th901, degaussing coil no degaussing ( button must be pressed.) no no no no yes yes yes yes - 25 - 7. no tilt (rotation ) trouble in p304, tilt coil connector, tilt coil no tilt (rotation) trouble in p303 trouble in ic201 check ic303 pin 7 voltage (5v) ? no yes yes check q315 base? (0~5v) no trouble in q309, q312, q313 yes check p304 pin 1 ? no - 26 - 8. trouble in osd check ic301 pin 5 (negative h-pulse comes in ?) check ic301 pin 10 (negative v-pulse comes in?) check ic301 pin 13, 14, 15 (is there any signal when operating front control ?) no osd trouble in ic302 trouble in q301, p302 trouble in p302 trouble in ic301, ic201 yes yes yes no no no check ic301 pin 9 (5v) ? trouble in p302, d927 no yes adjustment - 17 - general information all adjustment are thoroughly checked and corrected when the monitor leaves the factory, but sometimes several adjustments may be required. adjustment should be following procedure and after warming up for a minimum of 30 minutes. alignment appliances and tools. - ibm compatible pc. - programmable signal generator. (eg. vg-819 made by astrodesign co.or equivalent) - eprom or eeprom with saved each mode data. - alignment adaptor and software. - digital voltmeter. - white balance meter. - luminance meter. - high-voltage meter. automatic and manual degaussing the degaussing coil is mounted around the cdt so that automatic degaussing when turn on the monitor. but a monitor is moved or faced in a different direction, become poor color purity cause of cdt magnetized, then press (degaussing) on the osd menu. adjustment procedure & method - install the cable for adjustment such as figure 1 and run the alignment program on the dos for ibm compatible pc. 1. adjustment for b + voltage. 1) display cross hatch pattern at mode 4. 2) adjust c951 ( + ) voltage to 190 0.5v with vr901 . 2. adjustment for high-voltage. 1) display cross hatch pattern at mode 4. 2) adjust cdt anode voltage to 27kv 500v with vr1001 . 3. adjustment for factory mode (preset mode). 1) display cross hatch pattern at mode 5. 2) run alignment program for flatron 995ft , fb995c on the ibm compatible pc. 3) eeprom mode clear y(yes) command. - 18 - figure 1. cable connection 220 ibm compatible pc parallel port power inlet (required) power led st switch power select switch (110v/220v) control line not used rs232c parallel v-sync power st vgs monitor e v-sync on/off switch (switch must be on.) f a b c e f a b c 15 10 5 5 6 9 1 1 1 14 13 25 6 5v 5v 5v 4.7k 4.7k 4.7k 74ls06 74ls06 off on off on 11 video signal generator 7) adjust screen control on the fbt to 0.1 0.02fl of the raster luminance. 8) adjust b-bias to 135 (decimal) and sub-brightness to 120 (decimal). 9) adjust r-bias and g-bias command to x=0.283 0.006 and y=0.298 0.006 on the white balance meter with pc arrow keys. 10) adjust sub-brightness command to 0.5 0.1fl of the raster luminance. 11) display color 15,0 box pattern (70x70mm) at mode 4. 12) drive adj command. 13) set b-drive to 150 (decimal) at drive of the alignment program. 14) adjust r-drive and g-drive command to white balance x=0.283 0.003 and y=0.298 0.003 on the white balance meter with pc arrow keys. 15) adjust sub-contrast command to 40 1fl of the raster luminance. 16) display color 15,0 full white patten at mode 4. 17) color adj. luminance abl command. 18) adjust abl to 32 1fl of the luminance. 19) exit from the program. 5. adjustment for focus. 1) display h character in full screen at mode 4. 2) adjust two focus control on the fbt so that focus should be the best condition. disassembly - 11 - (b) (c) (a) (a) 3. top shield removal 1) remove four screws (a). 2) remove four screws (b). 3) remove two screws (c). 4) remove three screws (d). 5) slide the top shield away from the monitor. 2. back cover removal 1) remove two screw covers (a). 2) remove four screws (b) from the back cover. 3) remove the signal cap (c). 4) slide the back cover away from the front cabinet of the monitor. (a) (a) (c) (b) (b) (b) (d) (d) (d) (a) (a) (b) (c) (b) (a) 1. tilt/swivel removal 1) set the monitor face downward. 2) remove screw (a). 3) pressing the latch (b), carefully remove the tilt/swivel by pulling it upward. (b) - 12 - p306 p301 p303 p319 p401 p404 p403 p302 p402 p101 (a) (b) (b) (a) 5. video pcb assembly & control pcb assembly removal 1) disconnect p301, p302, p303, p306, p319 from the video pcb. 2) remove two screws (a). 3) remove the video pcb assembly from the main total assembly. 4) remove two screws (b). 5) disconnect p402 from the main pcb. p612 p704 p704 p904 p903 p306 p301 p303 anode cap tilt purity purity cdt earth convergence dy (conv h/v) degauss p319 p610 p611 p402 p401 p404 p403 p302 (a) (a) (a) (b) (b) control pcb (p101) pfc only 4. total chassis assembly removal 1) disconnect p903, p904 (degaussing pin), p704 (dy pin), tilt pin, p610,p611 (purity pin) , p612(convergence h/v), cdt earth pin from the main pcb. 2) disconnect p306 (gnd wire) from the video pcb. 3) carefully separate the cdt board assembly from the cdt neck. 4) discharge the remaining static electricity by shorting between the anode cap and the cdt ground. 5) disconnect the anode cap from the cdt. 6) remove three screws (a). 7) remove two screws (b). 8) remove the total chassis assembly from the cabinet. - 13 - (a) (a) (a) (a) (a) (c) (d) (d) (a) (b) (a) 7. main board ass? removal 1) remove seven screws (a). 2) remove screw (b). 3) remove screw (c). 4) remove two screws (d). 5) remove the main bracket and the bottom shield. (b) (b) (b) (b) (b) (a) (a) p801 p802 6. rear shield assembly removal 1) remove two screws (a). 2) remove five screws (b). 3) disconnect p801-p802. 4) remove the rear shield from the main pcb board. control locations - 9 - 1 8 9 2 3 4 5 6 7 no . 1 2 3 4 5 no . 6 7 8 9 ref. no. sw131 sw133 sw137 sw134 sw135 ref. no. sw132 sw136 vr901 vr1001 control function power switch set button osd select/adjustment (right) osd select/adjustment (up) osd select/adjustment (down) control function osd select/adjustment (left) osd button b + adjustment high-voltage adjustment timing chart - 4 - video sync d a e f b c mode resolution recall h o r i z o n t a l v e r t i c a l khz s s s s s s hz ms ms ms ms ms ms mode 2 + 53.674 18.631 14.222 4.409 0.569 1.138 2.702 + 85.061 11.756 11.178 0.578 0.019 0.056 0.503 800 x 600 85hz yes mode 1 43.269 23.112 17.778 5.334 1.556 1.556 2.222 85.008 11.763 11.093 0.670 0.023 0.069 0.578 640 x 480 85hz yes mode 3 + 68.677 14.561 10.836 3.725 0.508 1.016 2.201 + 84.997 11.765 11.183 0.582 0.015 0.044 0.523 1024 x 768 85hz yes mode 4 + 91.146 10.971 8.127 2.844 0.406 1.016 1.422 + 85.024 11.762 11.235 0.527 0.011 0.033 0.483 1280 x 1024 85hz yes mode 5 + 93.750 10.666 7.901 2.765 0.316 0.948 1.501 + 75.000 13.333 12.800 0.533 0.011 0.032 0.490 1600 x 1200 75hz yes mark a b c d e f a b c d e f sync polarity frequency total period video active time blanking time front porch sync duration back porch sync polarity frequency total period video active time blanking time front porch sync duration back porch factory preset mode exploded view exploded view parts list ref. no. 1 2 3 4 5 6 7 8 9 10 10-1 11 12 13 14 15 16 17 18 19 20 21 22 23 a b c d part no. 3091tkc050a 2423gg3e41d 339-002j 4951tks041b 6174t11002b 6871tst167a 6200tjb004a 4950tkk245a 6871tut006a 4951tks043a 4810tkm027e 332-102e 4950tkk117a 4951tks042a 6871tpt104a 6871tch085a 4810tkv012a 4815tkt009a 3809tkc021c 3809tkc021h 332-122b 3550tkk141a 3550tkk084a 3043tkk048c 6866tdu002d 6871tvt165a 6871tmt168c 6871tmt168d 6871tct085a 3313t19022c 3313t19022d description cabinet assy cdt set, m46qdg423x 01npld screw assy, php+5x25(fzmw1)+gw18 metal assy, frame fbt(fly back transformer), y268068(hfl1127rd) pwb(pcb), ass?, sub fb995c xkgu h/v control total filter(circ), emi 03me3g(3) delta metal raer(fb995c) pwb(pcb) assy, sub fb995c usb total metal assy frame (fb915b) bracket fb915b main (??core) screw, ptp+4x16(mswr/fzmy) metal, fix heat sink metal assy, shield bottom pwb(pcb) assy, power fb995c xpvu (fb995c-up); europe only(pfc) pwb(pcb) assy, composite fb995c control brand ca-** hand bracket fb915 volume shield assy, top back cover assy, fb995c (3808tkc022a) b-core (fb995c-ua) back cover assy, fb995c c022 "b"core,pfc (fb995c-up) screw, tp1+m4x16(fzmy1) cover fb995c piece rear cover fb915b screw tilt swivel assy signal cable, ul20276sb10p+2c awg#30 dt 1870mm pwb(pcb) assy, video fb995c xkgu brand ca-** total pwb(pcb) assy,main fb995c xlvu brand ca-81 total (fb995c-ua) pwb(pcb) assy,main fb995c xpvu brand ca-81 total (fb995c-up) pwb(pcb) assy, composite fb995c control brand ca-** total main total assy, fb995c xlvu brand ca-81 (fb995c-ua) main total assy, fb995c brand ca-81 (fb995c-up) 10-1 22 21 21 17 a c b d 7 6 9 10 14 11 2 1 osd set 3 4 5 12 13 16 15 18 8 19 20 23 |
Price & Availability of FLATRON995FTFB995C-UA19COLOR
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |