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Service Manual

MT1191V

19” Color Television

THIS SERVICE MANUAL IS FOR MT1191V SUFFIX A , B ,

C, D AND E CRT USAGE

SUFFIX A

SUFFIX B

SUFFIX C

SUFFIX D

SUFFIX E

V451

5721-015ST51N
(51GGD95X)

5721-51CN020T
(510UEB22DY)

5721-028TT48N
(A48LRH93X (W))

5721-029NT48N
(A48LSD095X)

5721-031ZT48N
(A48LGS30X)

DY501

4993-118

4993-060

4993-122

4993-119

4993-123

Содержание MT1191V

Страница 1: ... FOR MT1191V SUFFIX A B C D AND E CRT USAGE SUFFIX A SUFFIX B SUFFIX C SUFFIX D SUFFIX E V451 5721 015ST51N 51GGD95X 5721 51CN020T 510UEB22DY 5721 028TT48N A48LRH93X W 5721 029NT48N A48LSD095X 5721 031ZT48N A48LGS30X DY501 4993 118 4993 060 4993 122 4993 119 4993 123 ...

Страница 2: ...rd broadcasts or cable TV channels w Closed caption decoder displays captions or half screen text w V Block function SPECIFICATIONS AC Power Input 120V 60Hz AC Power Consumption 98Watts Chassis Construction IC Solid State Picture Tube 19 measured diagonally Speaker 3 5 x 2 in 90 x 50 mm Oval 8 ohms Tuner 181 Channel Freq Synthesized Remote Control Infrared Direct Access 26 Key 2 AA batteries Recei...

Страница 3: ... same type number for continued safety Do not lift picture tube by the neck Handle the picture tube only when wearing shatter proof goggles and after discharging the high voltage completely Keep others without shatter proof goggles away When removing springs or spring mounting parts from tuner tuner cluster or chassis shatter proof goggles must be worn Keep others without shatter proof goggles awa...

Страница 4: ...ing up the adjustment mode menu screens shown below 2 From the menu screen press the or button on the Remote Control to select the item to be adjusted 3 Press the MENU button on the Remote Control to enter adjustment mode for the item selected and the display shown below appears Example 4 Use the or button on the Remote Control to adjust the data for the item selected 5 When adjustment has been co...

Страница 5: ...REMOTE CONTROL LAYOUT 4 VIDEO VIDEO ...

Страница 6: ...8LSD095X CRT SUFFIX D V451 A48LGS30X CRT SUFFIX E CHASSIS REMOVAL 1 Remove 4 screws 177 from Cabinet Back AB and remove Cabinet Back from rear 2 Discharge anode lead at CRT chassis ground through a 10kohm resistor 3 Disconnect anode lead from CRT 4 Disconnect CRT Socket P C board PCB 2 from CRT V451 5 Disconnect 3 connectors CN501 DY501 CN601 L601 and LCN801 from Main P C board PCB 1 6 When replac...

Страница 7: ...JP199 and negative wire of TV Signal Generator to TP4 3 Connect wire of DC Digital Voltmeter to TP6 and wire to TP4 4 Adjust T202 so that the DC Digital Voltmeter reading is 2 5V 0 2V 5 Re insert JP200 and put solder FIG 1 SUB TINT ADJUSTMENT 1 Connect TV Test Pattern Generator NTSC signal Color Bar signal 70dB u channel 6 to EXT Antenna Terminal TE1 through TV Channel Signal Generator 2 Connect p...

Страница 8: ...t control to minimum position and Brightness control as far maximum as possible without causing the picture to bloom 4 Apply green raster signal from Dot Bar Generator to receiver 5 Loosen the deflection yoke clamp screw and pull the deflection yoke toward the rear of the CRT 6 Begin the following adjustment with the tabs on the round purity magnet rings set together Slowly separate the two tabs w...

Страница 9: ...tely converged at these points readjust the spacing between the two tabs to complete convergence of the magenta and green dots lines 10 If necessary repeat step 7 8 and 9 until proper convergence is obtained To prevent accidental mis adjustment of the magnets apply a stripe of paint across all six rings and onto the neck of the CRT FIG 4 DYNAMIC CONVERGENCE ADJUSTMENT Refer to Figure 5 Dynamic con...

Страница 10: ...sformer fully counterclockwise 6 Adjust the cutoff level of the color which appeared first by remote control refer to page 4 for remote control key combination and position so that voltage between TP16 and TP15 blue TP14 green or TP13 red is 20 1V 7 Turn the Screen control located under the flyback transformer clockwise so that the bright color line can just be seen 8 Adjust cutoff levels other th...

Страница 11: ...s 2 3 and 4 below refer to page 3 for Adjustment By Remote Control Method 2 Go to Adjustment Mode 2 by remote control 3 Select V AMP from Adjustment Mode 2 menu screen 4 Adjust V AMP level by using or button on remote control so that picture fills the picture opening from top to bottom and is proportionate to the width RF AGC ADJUSTMENT 1 Connect TV Channel Signal Generator to Antenna Terminal TE ...

Страница 12: ...TEST POINT 11 ...

Страница 13: ...0 0 4 8 4 8 4 8 3 2 2 3 2 1 TERMINAL No 21 22 23 24 25 26 27 28 29 30 Volt 2 2 0 7 4 7 4 8 6 5 9 1 3 0 1 9 2 8 1 2 TERMINAL No 31 32 33 34 35 36 37 38 39 40 Volt 0 7 1 2 7 7 6 3 0 0 2 9 3 2 3 0 1 6 5 2 TERMINAL No 41 42 43 44 45 46 47 48 49 50 Volt 3 0 5 0 5 0 2 0 1 8 9 1 4 0 9 1 8 1 8 1 TERMINAL No 51 52 53 54 55 56 Volt 0 0 0 0 2 8 4 0 2 8 0 0 IC311 TERMINAL No 1 2 3 Volt 16 0 0 0 9 0 IC501 TERM...

Страница 14: ...CHASSIS WAVEFORM 13 WF 1 1 0Vp p H WF 2 9 7Vp p H WF 3 47 2Vp p V WF 4 1 7Vp p V WF 5 27 4Vp p H WF 6 24 4Vp p H WF 7 25 8Vp p V WF 8 202Vp p H WF 9 0 75Vp p H ...

Страница 15: ...WIRING DIAGRAM 14 ...

Страница 16: ...0V R561 2 2k 5W CEM IC601 STR30130 R607 4 7k C605 0 01 250V KH C604 0 01 250V KH Q601 2SC945 P C616 0 01 250V R610 1 8k 5W CEM C602 0 01 250V KH D603 1N4002E D602 1N4004E C611 1000 25V R611 680 1 2W D605 RD12ES2 R604 12k 1W R605 330k 1 4W C608 22 160V R606 47 1 4W C606 0 01 250V C607 470 200V R603 270 15W CEM R601 2 7 5W MTL D601 RS104 TH601 CN601 L601 DEGAUSSING RL601 RELAY FU601 4A 125V P1 AC120...

Страница 17: ...P C BOARDS PCB 1 MAIN P C BOARD PCB 2 CRT SOCKET P C BOARD 16 ...

Страница 18: ...EXPLODED VIEW 16 142 158 ...

Страница 19: ...conductor AB A422 19V1131B Cabinet Back SUFFIX B C126 5361 561KB 560 pF 10 50V Ceramic B AB A422 19V1131C Cabinet Back SUFFIX E C127 5361 102KB 1000 pF 10 50V Semiconductor AB A422 19V1131D Cabinet Back SUFFIX D C129 5361 101KB 100 pF 10 50V Ceramic B AB A422 19V1131E Cabinet Back SUFFIX C C177 V5361 S17BK271 270 pF 10 50V Ceramic B C180 V5361 S17BK101 100 pF 10 50V Ceramic B ELECTRICAL PARTS LIST...

Страница 20: ...470 pF 10 50V Ceramic B C803 V5369 S03XM222 2200pF 20 16V Semiconductor C505 5354 104K1HM 0 1 uF 5 50V TF C804 5345 227 16 220 uF 20 16V Electrolytic C506 5345 107 35 100 uF 20 35V Electrolytic C805 5369 104144 0 1 uF 10 25V Semiconductor C507 5354 473K1HM 0 047 uF 10 50V Mylar C806 5345 108 16 1000 uF 20 16V Electrolytic C508 5345 108 35 1000 uF 20 35V Electrolytic C509 5345 L225M50 2 2 uF 20 50V...

Страница 21: ...25P 390 ohm 5 1 4W Carbon R192 V5133 R010J102 1 k ohm 5 1 8W Carbon R507 V5133 R010J563 56 k ohm 5 1 8W Carbon R212 V5133 R010J103 10 k ohm 5 1 8W Carbon R508 V5133 R010J333 33 k ohm 5 1 8W Carbon R213 V5133 R010J391 390 ohm 5 1 8W Carbon R509 5135 1R8J50P 1 8 ohm 5 1 2W Carbon R214 V5133 R010J563 56 k ohm 5 1 8W Carbon R510 V5133 R010J562 5 6 k ohm 5 1 8W Carbon R218 V5133 R010J102 1 k ohm 5 1 8W...

Страница 22: ... ohm 5 1 8W Carbon D312 5636 1SS133 Diode 1SS133 R805 V5133 R010J471 470 ohm 5 1 8W Carbon D315 5636 1SS133 Diode 1SS133 R806 V5133 R010J151 150 ohm 5 1 8W Carbon D501 5632 1N4002E Diode RL1N4002 E R807 V5133 R010J151 150 ohm 5 1 8W Carbon D552 5635 RD6R8ES2 Zener 6 8V R808 5232 1R0J16P 1 ohm 5 1 6W Carbon D553 5636 1SS133 Diode 1SS133 R809 5232 2R2J16P 2 2 ohm 5 1 6W Carbon D554 5636 1SS133 Diode...

Страница 23: ...1 R459 5232 271J16P 270 ohm 5 1 6W Carbon FH602 4472 05001 Fuse Holder FU601 R460 5134 122J25P 1 2 k ohm 5 1 4W Carbon FU601 5732 02401402 Fuse 4A 125V R461 5232 271J16P 270 ohm 5 1 6W Carbon JL101 4242 R0505401 Jumper Lead 5 Wire MAIN CRT R462 5134 122J25P 1 2 k ohm 5 1 4W Carbon JL102 4242 R0504351 Jumper Lead 4 Wire MAIN CRT R471 V5133 R010J221 220 ohm 5 1 8W Carbon P1 4161 14701212 Cord w Plug...

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