Panasonic TX-1441AE Service Manual Download

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Summary of Contents for TX-1441AE

Page 1: ...siegssccetahssdvasiescusssbedavs ads dhanrtesuovdedinsedevalals his svaes 23 ADJUSTMENT PROCEDURE scsi ccscisscotsseetodesssaseoususnasaieuscnnastdestonadusia syepesut bdegstedesegeacaasevabivonstssas...

Page 2: ...part to ground A leakage current tester may be used in the above hot check in which case any current measured must not exceed 5 0 milliamp in the case of a meaurement exceeding the 5 0 milliamp value...

Page 3: ...M mode when AUTO or the manual mode when MANUAL When this switch is AUTO MONITOR automatically works in the 1BM mode and adjusts itself to the scanning frequency resolution and color requirements of t...

Page 4: ...ith rise and fall times of less than 30 nsec from 10 to 90 pulse level TEXT COLOR 3 4 B ON Fwarre on ON ON NOTE The text switch k ly in the TT eee aE MANOR my Whe enh 5 OPTICAL CHARACTERISTICS 5 1 Ima...

Page 5: ...s than 2 mm 0 079 Input signal is a crosshatch pattern Other conditions are as stated in 5 1 Image test condition Rectangularness Parallelogram distor tion Edge of the image is within the area indicat...

Page 6: ...ines from X1 to Xm Y MAX Maximum distance between horizontal lines from Y1 to Yn Y MIN Maximum distance between horizontal lines from Y1 to Yn D Rotation Horizontal center line of the image shall be w...

Page 7: ...ibillities of visible moir there 7 CONNECTOR 7 1 Power connector TX 1441AE POWER AC GND AC PINNO 1 AC LIVE 2 GND F G 3 AC NEUTRAL CONNECTOR MONITOR USER SIDE See Note 1 Mir cesses AMP Mit cistsadenicn...

Page 8: ...r er means GROUND or NON CONNECTION SIGNAL LEVEL All signal level except for those listed below is TTL NOTE 1 means 0 6 V0 p VIDEO NOTE 2 means 0 6 Vo p VIDEO 0 3 Vp p SYNC 7 3 Signal cable This monit...

Page 9: ...Line Time Total ACTIVE BLANKING FRONT PORCH SYNC PULSE BACK PORCH Vertical Frequency Frame Time Total ACTIVE BLANKING FRONT PORCH SYNC PULSE BACK PORCH ACTIVE DOTS 640x200 NOTE 1 SCANNING MODE NON INT...

Page 10: ...05 0 7 msec Back Porch V3 06 V2 V3 msec Note Range 1 15 5 19 kHz Range 2 19 36 kHz 7 4 2 Signal Timing Composite Sync and Sync on Green Video Video HORIZONTAL Composite On Video Green Video 1 1 H2 _H3...

Page 11: ...LOG Input Unlimited Colors Example of Color Function Table for TTL tnput EGA 16 Colors Function Table Vertical Sync Polarity Positive 16 Colors Output Level Color Level TX 1441AE Light Magenta Note 1...

Page 12: ...0000 42440000 Note 1 See Note 1 of prior page 3200 00 4 0CO 900 300 00 3900 00 ACO4 00 300 00 O0 3 00 4 300 00 7AO 0 0 0 0o 0 0 0 7oOo O O 90 O 0 0 0 0 0 0 0 O 0O 0 0 7 O 0 0 0 lack L Blue L Green L C...

Page 13: ...missible defects any circle of 50 mm Air bubble average diameter mm 0 50 0 75 0 25 0 75 0 25 0 75 Black spot stain hole and open 0 50 0 65 0 50 0 65 0 50 0 65 air bubble average diameter mm Maximum pe...

Page 14: ...ts trios Between other color 20 mm Same color dots missed 1 defect 2 adjacent x 3 colors 1 trio missed 2 dots missed out of 1 trio 1 dot missed Between trio 20mm Between trio 20 mm Between same color...

Page 15: ...t case for the longer life Please keep them for the long life 10 2 Vibration and Shock 10 2 1 VIBRATION The color monitor must pass the fol lowing vibration test Packed condition 1 Frequency 5 to 55 H...

Page 16: ...TX 1441AE DIMENSIONS ass ison 108 wna or ace aes rai8 78 9PIN D SUB HOODOO DOOOO OOOO OODOOOOOOOOOO fet 15...

Page 17: ...CH MAX 277t1 2 TX 1441AE Wood i salt fe 4L 345 741 2 Db TYP 16 304 8t1 2...

Page 18: ...CATION CRT M34JDJ80X WEDGE TMM85511 DEFLECTION YOKE TXALY85327B1 SIDE PLATE L TUW87908 MAIN P W A TNP890253 31 L47 AC INPUT CONNECTOR TXAJTA3P 1427 CRT SOCKET BOARD TNP800166 21 1 F P W A TNP800167 31...

Page 19: ...SUB V HEIGHT VR406 SUB H WIDTH VR555 SUB H WIDTH VR556 SUB H POSITION VR535 SUB H POSITION VR534 LOW LIGHT B VR3372 LOW LIGHT G VR3371 LOW LIGHT R VR3370 FOCUS CONTROL SCREEN CONTROL H CENT VR551 B AD...

Page 20: ...three screws on the shield cover Disconnect the CN1301 CN1304 CN1305 and CN 1306 connectors from the interface board Disconnect the V301 V302 and V303 phone jack connectors from the interface board R...

Page 21: ...ct the CN303 and CN304 cable connectors from the CRT socket board Disconnect the CN305 CN306 and CN307 phone jack connectors from the CRT socket board Desolder the CRT socket board shield plate Desold...

Page 22: ...the CRT anode to the ground and dis connect the anode lead from the CRT Remove the ground wire terminal screw Remove the three screws that fasten the main board to the chassis Remove the screws that...

Page 23: ...remains on the CRT during removal 1 Place a soft pad on the bench top and then the dis play unit on it face down 2 Remove the four screws shown at the corners of the diecast chassis 3 Hold the CRT by...

Page 24: ...stor 30kV resisting pressure 1OOMQ2 and connect the other point to the CRT anode NOTE Grounding must be done first 3 If you check or adjust electrical specification or function more than 20 minutes bu...

Page 25: ...ENT PROCEDURE TX 1441AE H FREERUN control Center click position B ADJ Fully turn clockwise H WIDTH control Center click position H POSITION control Center click position V HEIGHT control Center click...

Page 26: ...ec VD pulse width V2 0 190 msec V BLK start V3 15 08 msec V BLK stop V4 2 350 msec Video width V5 12 70 msec MODE 2 SIGNAL TIMING Display area H 640 dot x V 350 H Character H 7 x V 9 dot Block H 8 x V...

Page 27: ...AE MODE 4 SIGNAL TIMING H 640 dot x V 400 H Character H 7 x V 9 dot Block H 8 x V 12 dot Video signal ANALOG Sync signal TTL composite Horizontal frequency 30 63 kHz Vertical frequency 60 06 Hz Duty r...

Page 28: ...100 24 8970 Nine Clock period 0 0222732 psec H1 1 264 dot ________ __ H3 1 256 dot H4 232 dot V1 409H V3 407H Horizontal Frequency Vertical Frequency H Sync HD pulse width H BLK start H BLK stop Video...

Page 29: ...t connector Pin con nection Text color aay 1st GREEN H V SYNC H V SYNC Ga Ga BLUE is eae Ba MODE H MODE Lt 2nd BLUE Bb H SYNC Notes wo e V SYNC indicates that the switch is invalid e 16B means 16 colo...

Page 30: ...ans availability X means unavailability 2 16 color Brown Yellow 16 Colors Output Level Magenta Yellow Yellow Light Gray Dark Gray Light Blue Light Green Light Cyan Light Red Light Magenta Yellow White...

Page 31: ...es 4440 gQ00 00 400 Oo 0O O 0 20000 000 20000 000 oeo0oo0ococe ee er ee eer eo000000 eoo0o0o0cK0Ko eo0o0oco0on0 4 40000 7 00 00 oO O O O Saar nen nae Cr ooo0o0ocd0o 4 0000 00 00 7O 0 0 0 20000000 000...

Page 32: ...ination White Level 16 Level gray scale Nees Black Level Must be between DCOV and 0 5V Blanking Level Pedestal VIDEO WAVEFORM LEVEL For Color Red Blue and Green 600mV Note q ____ Must be between DC OV...

Page 33: ...H HOLD high impedance probe to TP 51 and ground 2 Turn off the SW501 AFC 3 Adjust VR501 H HOLD to set the fre quency to 21 85 kHz Horizontal Adjustment VR502 4 Turn off the H SYNC signal and SW501 H...

Page 34: ...loscope to TP G1 and ground Turn off video signal Adjust VR1301 BRIGHT and VR361 SUB BRIGHT to set the voltage 25V Turn LOW LIGHT controls VR3370 VR3371 and VR3372 to the maximum position in the direc...

Page 35: ...iable fH 36 4 kHz fV 700 Hz Horizontal center line of CRT a 2mm 0 079 10 Horizontal MODE VR551 1 Set SW1302 to MANUAL Position M5 H CENT 2 Turn off video signal Adjustment 3 Set VR1301 BRIGHT fully lo...

Page 36: ...187 5 mm 7 38 Turn VR552 H WIDTH and VR403 V HEIGHT and check that width and height are variable vertically by 20 mm 0 79 or more Turn video channel A off and channel B on Apply a 10 window signal Se...

Page 37: ...he screen simultaneously 9 Slide the deflection yoke rearward until the screen appars green on the whole and fasten it there Fasten in a forward position with ample allowance for landing oat TX 1441AE...

Page 38: ...e when beams are twisted righthand Shift Red line up ward and Blue line downward for adjust ment A B The red is too far to the right The red is too far to the left 11 Tighten magnet stoppers 12 Tilt t...

Page 39: ...ection yoke Tilt the deflection yoke left right i The red is too far to the right A B A B I 4 TT a PTD Blue Red Red Blue 1 t freA Bo The red is too far to the left A B A B Blue 3 TX 1441AE All red lin...

Page 40: ...All red lines are below Th f A B e red is too far down A B Blue Blue Adjust the 4 pole magnet B Red 16 Adjust the center horizontal line on the screen using the differential coil If convergence error...

Page 41: ...rors at the four corners with permalloy until the specifications are satisfied 21 The red is too far to the right in the upper and lower right corners The blue is too far to the left in the upper and...

Page 42: ...300 CONTRAST from MIN to MAX See color table 4 Jie 2Gueteistowcwmeromomage e MODE 5 Set SW1302 to MANUAL and set SW1303 and to OFF 6 Turn VR1300 CONTRAST from MIN to MAX and check that level changes f...

Page 43: ...city coordinates are X 0 281 Y 0 311 Apply a 64 color bar signal input Multicolor Check 2 Set SW1304 to ON Text Check 3 Set SW1303 3 3 4 and 5 as shown below turn VR 1300 CONTRAST from MIN to MAX and...

Page 44: ...W1301 to ANALOG 4 Combine input signal as shown below and check that nothing is wrong on the screen SYNC ON Green Overall Pariormianee 1 Set SW1301 to ANALOG Check 2 Turn video signal on TTL AN 3 Appl...

Page 45: ...Main Board TNP890253 31 TX 1441AE CIRCUIT BOARD SOLDER VIEW ______EO 44...

Page 46: ...TX 1441AE TX 1441AE J F Board TNP800167 31 CRT Socket Board TNP800166 21 Parts Side pattern Solder Side pattern SAB...

Page 47: ...Q309 A Mode FVConverter B Mode Comparator Degoussing 1 551 Control O ee PC851 Timer Degaussing rae ls te H Size Cont D853 Optical F Isolator FBT B 1 532 IC651 Transformer Converter rete eroomnK4 Q556...

Page 48: ...as a section that does not share a common ground with the power supply section The different sections are 2 referred to as the HOT section and the COLD section in the precautions below ce 1 Do nottouc...

Page 49: ...A 40 6 La GMRST 1KB0 2 tect casa 3 10000P SoOov R393 150 17 SCHEMATIC DRAWING NO TX 1441AE 001 TNP800167 31 IBRIGHTNESS B R301 d d FePsf2 Oak crave 14 4 144 a 100KB 0 30 a wi 554 RSS VR556 i 1 8 Bls7...

Page 50: ...Ci Q309 UNI212 FIRST FIGURE OF CIRCUIT NUMBER IS OMITTED 7 R392 0 120 RTT CN304 hed 0343 Y7 6 4K VR303 a MAaA 3 vaso 5Vp p B caIN 8 SN R BNI 326 S JULI 3 OW C530 R390 C328 35 _ 0 01 388 gle CONTRAST 2...

Page 51: ...0 47 1 2 oe a a Mae era bee eae Grane 1c881 STR50330F501 Leet R8e5 7185 6 ELC10B006 AX te0t_ 7542K2548 cee2 T881 220 1 prcrtort are FBT IB SS ay f fe4 _ Raag a 318K Des RG2A 10F anit C886 7 6 6 0 47...

Page 52: ...itch MANUAL MANUAL COLOR SELECT Switch Set COLOR Switch Turn on PanaSync Display POWER Switch 3 54 es TX 1441AE Troubleshooting Flowchart Conditions Standard conditions Mode 2 a No Characters Patterns...

Page 53: ...minance VR fully clock wise Whole screen turns bright Check video circuit See a No Character Patterns Q361 is faulty D363 R367 are faulty Check CRT print G1 voltage Approx 24V OK Check SCREEN VR Horiz...

Page 54: ...1 Approx 64V OK Check Q551 base waveform a Check 0521 base waveform b Check CN1302 pin waveform c Check 1C401 pin wave form d OK 1C401 is faulty 54 Power circuit is faulty See page 58 FBT T551 is faul...

Page 55: ...aveforms a Approx 5Vp p Input to 9PD SUB pins is normal a Check CRT PWB KR KB KG wave forms b Check equipment OK orteta Q301 Q302 Q303 are faulty Check Q302 Q302 Q303 base waveforms a Video output cir...

Page 56: ...rm is normal a YES Check main PWB CN1302 pin waveform OK Check Q501 Q501 is faulty base voltage Approx 12V NO Check 1C533 pin voltage Approx 10 4V NO 1C533 is faulty 10533 is faulty 1C531 is fauity Ch...

Page 57: ...y 1C401 is fauity Check 1C305 pin voltage e 1C305 is faulty 1C307 is faulty Check mode switching circuit iB g Power Circuit Faulty Power circuit faulty Check voltages No voltages at all Check D805 D80...

Page 58: ...TX 1441AE TX 1441AE EXPLODED VIEWS 59...

Page 59: ...4 SIDE PLATE BRACKET R 32 WAS5B WASHER WC3BFN WASHER 10 TUX87112 1 I F BRACKET 33 WG5SH17 WASHER 11 TUX87713 14 BOTTOM PLATE 12 TUc8S5980 SHIELD PLATE I F 34 KWS8A WASHER 13 fUC87522 SHIELD PLATE CRT...

Page 60: ...ANSISTOR TRANSISTOR TRANSISTOR COTTON TAPE 55M MAIRA TAPE 20M DUTER CARTON PTB PASS SHEET SERIAL NO LABEL WARNING LABEL HIGH VOLTAGE LABEL CONTROL LABEL SELECT TEXT LABEL CONTRAST LABEL BRIGHT LABEL C...

Page 61: ...ID3361 MA165 DIODE D758 MA165 DIODE D3362 MA165 DIODE D759 Mates IDIODE D3363 MA165 DIODE D804 ERTD7FFK160L THERMISTOR ID3364 MA165 DIODE D805 IRBV406 DIODE SI D3365 MA165 DIODE D806 EU1Z DIODE D3366...

Page 62: ...ECEA1EGE332 E 3300UF 25V VR554 EVM4HGAOOB15 CONTROL B 100K OHM C531 ECCF1H221J IC 220PF J 50V VVR555 EVM4HGAOOB15 CONTROL B 400K OHM C532 ECQP1H102FZ PP 1000PF F 50V VR556 IEVM4HGAOOB15 CONTROL B 100...

Page 63: ...O1UF 1OO0PF tOOOPF 470PF O 15UF 1UF 1OOUF 0 O1UF 1OOUF O O1UF 1 OOUF O O1UF 220UF O O4UF O O1UF O O1UF 1OOPF O O1UF O O1UF J 50V M 250V M 250V M M 250V 250V 50V 400V CxrAZS Lat a NACEC uleo J 50V 200V...

Page 64: ...RDS2TU222 R443 R444 R445 Rar par R473 R475 R476 R477 478 R479 R480 R484 pane R503 R504 R505 R506 R507 R508 R509 R510 R511 R512 R513 514 R516 R518 R519 R520 R521 R522 R523 R524 R525 R526 R530 R531 R532...

Page 65: ...888 ERDS2TU183 18K OHM J 1 4W R6O6 ERDS2TU822 Cc 8 2K OHM JU 1 4W 889 ERD2FCG222 CC 2 2K OHM G 2W RG6O7 ERDS2TV103 Cc 10K OHM J 1 4W R890 ERDS2TU333 33K OHM J 1 4W R650 EROS2CKG8252 M 82 5K OHM G 1 4...

Page 66: ...96 R 1397 R 1398 R1399 IR1402 R 1403 R 1404 R1405 R1406 R1407 IR 1409 R410 R1416 ERDS2TJ823 ERDS2TU823 ERD25FU823K ERDS2TU222 ERDS2TJU224 ERDS2TU124 ERDS2TU562 ERDS2TU471 ERDS2TU471 ERDS2TU4714 ERDS2T...

Page 67: ...E3P 1329 SP CONNECTOR ASSY CN40 1ATXAUTE7PO6O 7P CONNECTOR ASSY CN401BTUS878307 7P SOCKET Ee SNALABIT EGR AGT i CNSO1BTUS878306 CNS5Q02AT XAUTE5P319 CNSO2B7 JS878305 CNSOSATXAUTESP354 CN503BT US878305...

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Panasonic TX-1441AE, Service Manual

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