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 1 Safety Precautions 

3

 1.1. 

General Guide Lines 

3

 1.2. 

Leakage Current Cold Check 

3

 1.3. 

Leakage Current Hot Check (Fig. 1) 

3

 1.4. 

X-Radiation 

3

 1.5. 

GL1 Chassis Block Diagram 

4

 2 Service Hints 

5

 2.1. 

Service Position for E-Board 

5

 2.2. 

Factory Mode Adjustment 

5

 2.3. 

Adjustment for White Balance 

8

 2.4. 

Adjustment for CRT CUT OFF 

8

 2.5. 

Adjustment Procedure 

9

 2.6. 

Adjustment 

10

 3 Conductor Views 

13

 4 Schematic Diagram 

14

 4.1. 

A Board 

16

 4.2. 

L Board 

21

 5 Parts Locations 

24

 6 Replacement Parts List 

25

 6.1. 

Replacement Parts List 

26

CONTENTS

 Page 

Page

2

TC-21FX20RG

Содержание TC-21FX20RG

Страница 1: ... Terminal DVD 2006 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TC 21FX20RG GL1 Chassis Y 1 0 Vp p 75Ω PB 0 7 Vp p 75Ω PR 0 7 Vp p 75Ω AV 1 2 Video In 1 Vp p 75Ω Audio In Approx 0 5V 47kΩ Monitor Out Video Out 1 Vp p 75Ω Audio Out Approx 0 5V 1kΩ High Voltage 27 5kV 1 5 at zero beam current Picture Tube A51LYZ295X 50 5cm 21 i...

Страница 2: ...vice Hints 5 2 1 Service Position for E Board 5 2 2 Factory Mode Adjustment 5 2 3 Adjustment for White Balance 8 2 4 Adjustment for CRT CUT OFF 8 2 5 Adjustment Procedure 9 2 6 Adjustment 10 3 Conductor Views 13 4 Schematic Diagram 14 4 1 A Board 16 4 2 L Board 21 5 Parts Locations 24 6 Replacement Parts List 25 6 1 Replacement Parts List 26 CONTENTS Page Page 2 TC 21FX20RG ...

Страница 3: ...ed metallic cabinet part on the receiver such 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 4 MΩ and 20 MΩ When the exposed metal does not have a return path to the chassis the reading must be infinite 1 3 Leakage Current Hot Check Fig 1 1 Plug the AC cord directly into the AC outlet Do not use an ...

Страница 4: ...AW Rear Inputs AV1 V L R Front Inputs AV2 V L R YUV YUV CVBS4 CVBS2 IF V H V OUT H OUT R G B R G B CRT defl coil MONITOR OUT SDA SCL Audio Out Mon Out AUDIO AMP IC2302 IC601 UOC EEPROM IC1103 IC851 5V 8V IC801 T801 IC880 3 3V PRIMARY LIFE CCT SPEAKER 4 TC 21FX20RG ...

Страница 5: ...nt a Set Timer ON 30 minutes Press remote s RECALL panel s vol down key simultaneously to select service mode b CHK should appear on right side of TV screen After few seconds CHK 1 should appear on right side of TV screen NOTE To move from CHK 1 to CHK 2 mode etc please follow below rotation c CHK 1 Press digit key 4 to move option mode forward Press digit key 3 to move option backward The functio...

Страница 6: ...ion will be as follows f Press digit key 4 to move forward from Colour Sub Colour etc Press digit key 3 to move backward from Sub Colour Colour etc g Press volume up volume down to adjust setting h Press digit key 5 to make the AKB OFF Blue OSD first time Press digit key 5 to make the AKB On White OSD second time i CHK3 Press digit key 2 to move forward to CHK 3 The function rotation will be as fo...

Страница 7: ...e backward from G CUT R CUT n After selecting the required mode press volume up volume down to adjust required setting o Press digit key 5 to make the AKB OFF and H Line mode first time Press digit key 5 to make the AKB ON and Normal picture second time p After finish adjustment press Power ON OFF button on remote control to go to normal TV mode 2 HOW TO CHANGE CHANNEL BY I2C BUS CONTROLLER a Shor...

Страница 8: ...OFF so that X 0 245 0 015 nit 3 Adjustment G CUT OFF so that Y 0 274 0 015 nit Adjustment of High Light 1 Adjustment Sub Bright so that Y 150 nit 2 Adjustment R Drive so that X 0 261 0 015 nit 3 Adjustment G Drive so that Y 0 274 0 015 nit 2 4 Adjustment for CRT CUT OFF Preparation 1 Connect the oscilloscope probe to TPL5 2 Screen VR min 3 Set the data Sub Bright Bright 4 In service Mode at Bright...

Страница 9: ... follows TPA 10 141 1 5V TPA 12 3 3 0 5V TPA 09 5 1V 2 5 2 High Voltage Item preparation 1 Receive the crosshatch pattern 2 Set to 0 Beam Screen VR minimum Contrast minimum Adjustment procedure 1 Connect a DC voltage meter to TPA 10 and confirm the B voltage is 141 0 1 5V 2 Connect a high frequency voltmeter to heater and confirm that voltage reads 6 3 0 24 VRMS 3 Normalize the brightness and cont...

Страница 10: ...ined Fig 21 10 Re adjust the Low Light controls to their correct settings and make sure that a uniform white field is obtained 11 Tighten the clamp screw A in Fig 10 Convergence 1 Apply a crosshatch pattern signal and Normalize Contrast control to the maximum positions 2 Adjust Brightness until the grey position of the crosshatch pattern just becomes black 3 Adjust the Red and Blue line at the cen...

Страница 11: ...primarily Fig 1 Purity magnet Set purity magnet that 2 magnets are TOP POSITION VRS magnet Set purity magnet 2 magnets are HORIZONTAL POSITION 2 Adjustment a Receive that Cross Hatch pattern b Adjust V SHIFT 50Hz c Set 2 magnets of horizontal position to up and down equally so that it will be the center part of CRT Fig 2 11 TC 21FX20RG ...

Страница 12: ...2 and 3 shown in Fig 11 2 The wedges should be set 120 apart from each other 3 Be certain that three wedges are firmly fixed and the Deflection Yoke is tightly clamped in place Otherwise the Deflection Yoke may shift its position and cause a loss of convergence and purity 12 TC 21FX20RG ...

Страница 13: ...3 Conductor Views 13 TC 21FX20RG ...

Страница 14: ...4 Schematic Diagram 14 TC 21FX20RG ...

Страница 15: ...15 TC 21FX20RG ...

Страница 16: ...4 1 A Board 4 1 1 A Board 1 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 16 TC 21FX20RG ...

Страница 17: ...4 1 2 A Board 2 5 1B 2B 3B 4B 5B 6B 7B 1A 2A 3A 4A 5A 6A 7A 8A 9A 17 TC 21FX20RG ...

Страница 18: ...4 1 3 A Board 3 5 1C 2C 3C 4C 5C 6C 7C 8C 1B 2B 3B 4B 5B 6B 7B 18 TC 21FX20RG ...

Страница 19: ...4 1 4 A Board 4 5 1D 2D 3D 4D 5D 6D 7D 8D 9D 1C 2C 3C 4C 5C 6C 7C 8C 19 TC 21FX20RG ...

Страница 20: ...4 1 5 A Board 5 5 1D 2D 3D 4D 5D 6D 7D 8D 9D 20 TC 21FX20RG ...

Страница 21: ...4 2 L Board 4 2 1 L Board 1 3 1A 2A 3A 4A 5A 21 TC 21FX20RG ...

Страница 22: ...4 2 2 L Board 2 3 1B 2B 3B 4B 5B 6B 1A 2A 3A 4A 5A 22 TC 21FX20RG ...

Страница 23: ...4 2 3 L Board 3 3 1B 2B 3B 4B 5B 6B 23 TC 21FX20RG ...

Страница 24: ...5 Parts Locations 24 TC 21FX20RG ...

Страница 25: ...6 Replacement Parts List 25 TC 21FX20RG ...

Страница 26: ...102KBP C 1000PF K 2KV C402 F2A1V101A246 E 100UF 35V C404 ECQB1333JF P 0 033UF J 100V C406 F2A1H221A247 E 220UF 50V C407 F0A1H103A039 CAPACITOR C408 ECQB1274JF P 0 27UF J 100V C502 F1B2H821A025 C 820PF 500V C503 F1B2H821A025 C 820PF 500V C504 ECJ2VB1H681K C 680PF K 50V C506 F1A2H1000002 C 10PF 500V C511 ECA1VM101B E 100UF 35V C513 ECKW3D331JBP C 330PF J 2KV C514 F2A1E102A199 E 1000UF 25V C515 F1B2H...

Страница 27: ...IODE D862 MTZJ2 0B ZENER DIODE D863 B0HAJL000003 DIODE Ref No Part No Part Name Description Remarks D864 B0BA03300030 DIODE D865 B0BA3R500008 DIODE D872 MAZ20820A0LS DIODE D883 MTZJ3 6A ZENER DIODE INTEDGRATED CIRCUITS IC1103 TVR4GAS591 EEPROM IC IC2302 AN17820B IC IC351 TDA6107AJFN1 IC IC451 AN15525A IC IC601 TDA12166NDP IC IC801 C5HABZZ00116 IC HYBRID IC802 C0EAS0000026 IC IC851 C0DAEJG00001 IC ...

Страница 28: ... 1 10W R406 ERDS1FJ1R0 C 1OHM J 1 2W R407 ERG2SJ331E M 330OHM J 2W R408 ERJ6ENF5101 F 5 1KOHM J 1 8W R409 ERJ3GEYJ202 M 2KOHM J 1 16W Ref No Part No Part Name Description Remarks R414 ERJ3GEYJ432 M 4 3KOHM J 1 16W R415 D1AC7500A094 M 750OHM 1 10W R416 ERX1SJR56E M 0 56OHM J 1W R504 ERG2SJS332H M 3 3KOHM J 2W R507 ERDS2TJ101 C 100OHM J 1 4W R508 ERG3FJ152H M 1 5KOHM J 3W R509 ERG3FJ182H M 1 8KOHM J...

Страница 29: ...00 M 0OHM J 1 16W JK3002 K4BK09B00013 REAR AV TERMINAL JK3003 K4BK10B00004 REAR AV TERMINAL JK3202 K4BC14B00005 FRONT AV TERMINAL JSA002 ERJ3GEY0R00 M 0OHM J 1 16W JSA110 ERJ3GEY0R00 M 0OHM J 1 16W JSA111 ERJ3GEY0R00 M 0OHM J 1 16W JSA112 ERJ3GEY0R00 M 0OHM J 1 16W JSA113 ERJ3GEY0R00 M 0OHM J 1 16W JSA3000 ERJ3GEY0R00 M 0OHM J 1 16W JSA3001 ERJ3GEY0R00 M 0OHM J 1 16W JSA3132 ERJ3GEY0R00 M 0OHM J 1...

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