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ALIGNMENT PROCEDURE AND OPTION SETTING

Entering SERVICE mode
Service mode is entered by selecting the “mute” remote key and local “down” simultaneously with the sharpness DAC set to
Minimum and programme position 99 selected.
Service mode 2 is selected by pressing the Recall remote key while in service mode 1.
Service mode navigation
- Up /Down remote keys                                        :cycle through the service items available.
- -/+ remote keys                                                   :Decrement/Increment the values within range.
- TV/AV                                                                  :Store the current data.
- 0 – 7 digit keys                                                    :Toggle bits 0-7 in option byte (service mode 2).

Order

Item

Range

1

Cut off (VG2)

LED ON , LED OFF

2

Vertical slope

0-63

3

Vertical Shift

0-63

4

Vertical amplitude

0-63

5

Horizontal shift

0-63

6

Red Cut

0-63

7

Green Cut

0-63

8

Red Drive

0-63

9

Green Drive

0-63

10

Blue Drive

0-63

11

AGC

0-63

12

Sub-Colour

0-63

13

Sub-Brightness

0-63

Sub-Colour:

Set sub-colour to 16.

Sub-Brightness:

Set sub-colour to 33.

G2 alignment:

Before entering into service mode, recall the nominal picture setting :remote key “N”.
From this setting, increase brightness by 11 steps and reduce sharpness to minimum.
Tune a colour bar signal on Prg 99 and enter into SVC mode. In SVC mode , select “G2” item 
and press – or + remote key to control software disable vertical deflection. The user must then 
adjust G2 voltage on FBT, to find the point where LED is ON. Press – or + remote key to return 
to normal SVC mode.

White balance:

- Select a dark picture and adjust Red Cut and Green Cut to the desired colour temperature.
- Select a bright picture, set Blue Drive to 32 and adjust Red Drive, and Green Drive to the 
  desired colour temperature.

4

Summary of Contents for TX-21JT2C

Page 1: ...Video 38 9MHz 34MHz Audio 32 9MHz 33 16MHz 33 4MHz Colour 34 47MHz PAL 34 5MHz 34 65MHz SECAM Video Audio Terminals AV1 IN Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 10kΩ RGB 21 pin Audio RCAx1 500mV rms 10kΩ Video RCAx1 1V p p 75Ω AV1 OUT Video 21 pin 1V p p 75Ω Audio 21 pin 500mV rms 1kΩ High Voltage 29kV 1kV Picture Tube A51QAE320X47P 51cm Audio Output 3W Music Power 8Ω Impedance Headphones...

Page 2: ...h as screw heads aerials connectors control shafts etc When the exposed metallic part has a return path to the chassis the reading should be between 4M ohm and 20M ohm When the exposed metal does not have a return path to the chassis the reading must be infinite LEAKAGE CURRENT HOT CHECK 1 Plug the a c cord directly into the a c outlet Do not use an isolation transformer for this check 2 Connect a...

Page 3: ...SERVICE HINTS How to remove the rear cover 1 Remove the 5 screws as shown in Fig 2 LOCATION OF CONTROLS 3 Fig 2 SCREWS SCREWS Focus Screen CRT Board Main Board AV Board ...

Page 4: ...Cut 0 63 7 Green Cut 0 63 8 Red Drive 0 63 9 Green Drive 0 63 10 Blue Drive 0 63 11 AGC 0 63 12 Sub Colour 0 63 13 Sub Brightness 0 63 Sub Colour Set sub colour to 16 Sub Brightness Set sub colour to 33 G2 alignment Before entering into service mode recall the nominal picture setting remote key N From this setting increase brightness by 11 steps and reduce sharpness to minimum Tune a colour bar si...

Page 5: ...1 F S 2 3 HV B P CON 25V V 22 1 INA 39 14 Vp1 VCC P CON 8V 44 AM OUT TV AV EEPROM IC IC199 S 24C16AFJA TB 01 J701 2 6 47 46 48 28 35 11 7 15 R_IN G_IN B_IN 3 1 AUDIO_OUT EXT A IN Q601 BUFFER 1 2 FRONT VIDEO J702 1 2 FRONT AUDIO J703 H_OUT 33 Q401 H OUTPUT Q405 H DRIVE VIDEO AMP IC IC801 TDA6107Q CRT V801 8 7 9 VOC 3 VOC 2 VOC 1 VI 1 VI 2 VI 3 2 1 3 52 53 51 B_OUT G_OUT R_OUT 6 180V 42 CVBS Yin 6 V...

Page 6: ...ATION 7 NOTE The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List This diagram is used for representative purposes only 3 9 8 7 5 11 17 6 4 12 15 10 1 2 2 14 13 16 ...

Page 7: ...J33B LED D101 SLR 342VCT32 DIODE D401 AU02A EIC DIODE D402 AU02A EIC DIODE D403 MTZJ33B DIODE D404 MTZJ33B ZENER DIODE D406 MTZJ12BT 77 DIODE D407 MA165TA5 ZENER DIODE D408 MTZJ18BT 77 DIODE D409 AU02A EIC ZENER DIODE D410 MTZJT 776 8B DIODE D411 MA165TA5 DIODE D413 AU02A EIC DIODE D501 RM11C EIC DIODE D502 RM11C EIC DIODE D503 RM11C EIC DIODE D504 RM11C EIC DIODE D505 SB290S DIODE D506 MTZJ5 6B Z...

Page 8: ...RD25TJ101 0 25W 5 100 Ω S M CARB R119 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R120 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R123 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R124 ERJ6GEYJ103 0 1W 5 10K Ω CARBON R126 ERD25TJ470 0 25W 5 47 Ω S M CARB R401 ERJ6GEYJ222 0 1W 5 2K2 Ω METAL R402 ERG3FJ821 3W 5 820 Ω S M CARB R403 ERJ6GEYJ222 0 1W 5 2K2 Ω CARBON R404 ERD50TJ471 0 5W 5 470 Ω CARBON R405 ERD50TJ1R5 0 5W 5 1R5 Ω CA...

Page 9: ...8 ERD25TJ821 0 25W 5 820 Ω CARBON R719 ERD25TJ102 0 25W 5 1K Ω CARBON R801 ERD50TJ102 0 5W 5 1K Ω CARBON R802 ERD50TJ102 0 5W 5 1K Ω CARBON R803 ERD50TJ102 0 5W 5 1K Ω S M CARB R804 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R805 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R806 ERJ6GEYJ101 0 1W 5 100 Ω S M CARB R807 ERJ6GEYJ102 0 1W 5 1K Ω S M CARB R808 ERJ6GEYJ102 0 1W 5 1K Ω S M CARB R809 ERJ6GEYJ102 0 1W 5 1K Ω F...

Page 10: ...CT C640 ECA1VM101B 35V 100µF CERAMIC C641 ECKC1H222J 50V 2 2nF CERAMIC C642 ECKC1H561J 50V 560pF CERAMIC C646 ECKC1H560JB 50V 56pF CERAMIC C647 ECKC1H560JB 50V 56pF CERAMIC C648 ECKC1H102J 50V 1nF CERAMIC C650 ECKC1H103J 50V 100µF CERAMIC C655 ECKC1H102J 50V 1nF CERAMIC C656 ECKC1H223J 50V 22nF CERAMIC C702 ECKC1H102J 50V 1nF CERAMIC C703 ECKC1H471J 50V 470pF ELECT C704 ECA1CM100GB 16V 10µF CERAMI...

Page 11: ...g and are subject to change without notice REMARKS a Do not touch the hot part or the hot and cold parts at the same time as you are liable to a shock hazard b Do not short circuit the hot and cold circuits as electrical components may be damaged c Do not connect an instrument such as an oscilloscope to the hot and cold circuits simultaneously as this may cause fuse failure Connect the earth of th...

Page 12: ... MEASURED D001 MTZJ33B C602 100 16V KA C002 470 6 3V YK X101 100CT01207 12MHz IC101 TDA9360 MICON CHROMA IC 1 10 11 12 13 14 15 16 17 18 19 2 20 21 22 23 24 25 26 27 28 29 3 30 31 32 33 34 35 36 37 38 39 4 40 41 42 43 44 45 46 47 48 49 5 50 51 52 53 54 55 56 57 58 59 6 60 61 62 63 64 7 8 9 L603 68uH 0305 L102 10uH 0305 L104 10uH 0305 L601 10uH 0305 L101 10uH 0305 L001 10uH 0305 L604 0 33uH L605 1u...

Page 13: ... 1 4W C1010 0 001 B C1009 0 001 B C709_1 0 001 CH C702 0 001 CH C703 470P CH C1003_1 0 0022 X C1012 0 001 CH C1013_1 0 001 CH W815 W810 W813 W804 C1008 47 16V KA C1007 47 16V KA C704 10 16V KA C1006 100 16V YK C1002 10 50V YK C1001_1 470 16V YK C1011_1 470 16V YK WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST NOTE THE DC VOLTAGE AT EACH PART W...

Page 14: ...10K 1 4W R414 10K 1 4W R419 470 1 2W R455 390 1 2W R801_1 1K 1 2W R803_1 1K 1 2W R802_1 1K 1 2W C404 0 0022 500V B C423_1 0 33 250V PMS C424 0 0082 1 25KV MPP C416 27P 500V SL C417_2 0 01 100V MMTS C403_2 0 047 100V MMTS C819 0 001 2KV R C405 0 047 B C401 0 047 B C407 0 1 B C802 0 0015 B C420 56P 500V SL C803 0 1 250V MKT C408_1 0 1 F C432_2 0 1 100V MMTS W822 W821 W823 W851 W831 W807 W824 W825 W9...

Page 15: ...C507 0 001 2KV B C506 0 001 2KV B C503 220P 2KV R C501_2 0 1 275V ECQUL C535 0 0022 250V KX C508 0 001 250V KX C527 220P 250V KX C509 0 022 M C518 0 01 B C502 0 001 M C504 0 047 M C516 470P 500V B C517 680P 2KV R C526_2 0 22 275V ECQUL W809 W808 W819 W818 C511 47 25V YK C514 470 16V YK C541 1000 25V YK D512 1N4937 D503 RM11C EIC D501 RM11C EIC D504 RM11C EIC D510_1 30DF6 FC D521 1SS133 D502 RM11C ...

Page 16: ... W012 CP802A W014 L601 W011 W026 L603 C626 R719 W037 W038 W013 W027 CP802B CP801_1 TP801 R801_1 TP803 TP802 R802_1 HS801 IC801 D802 D801 D803 R803_1 R718 R1009 R1010 CD701B J1001 J703 J702 C631 W055 CF604 L602 R633 C803 R632 C629 R631 W046 D602 W043 R001 W831 D603 R117 C1010 C1008 R521 IC401 C402_1 W049 D410 C541 C406 C1011_1 C1001_1 C1007 W050 TP002 W804 CP701A W025 W029 W016 C109 C602 C619 C616 ...

Page 17: ... R645 R644 C642 R650 R646 R648 R640 C639 C638 C637 R639 C636 C635 R637 C627 R626 R627 C634 C632 R628 C628 R634 R625 R623 R804 R806 R807 R808 R809 C802 R805 C703 R717 Q607 R710 R629 Q606 R630 C630 Q608 R642 R641 C641 R643 R636 R624 R651 Q504 Q505 R526 C1009 R531 R652 R635 R711 C646 W815 Q513 Q506 Q512 IC199 R115 C518 R123 R124 C647 R654 R657 Q609 C650 R656 R655 C648 R621 L706 R702 C606 R537 R528 R5...

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