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4.1.5. A Board (5/5)

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TC-14Z99M

Summary of Contents for TC-14Z99M

Page 1: ...ushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TC 14Z99M GP31 Chassis Colour 33 57 MHz PAL 33 6 MHz SECAM 33 75 MHz SECAM 34 42 MHz NTSC Video Terminals AV1 2 RAV In Video In 1 Vp p 75Ω Audio In Approx 400mVrms Monitor Out Video Out 1 Vp p 75Ω Audio Out Approx 400mVrms High Voltage 23 5kV 1 5 at zero beam current Picture Tube 37GDC...

Page 2: ...ltage Adjustment 6 2 4 Heater Voltage Confirmation 6 2 5 RF AGC Adjustment 6 2 6 NTSC Tint Colour Adjustment 6 2 7 PAL Colour Output Level Adjustment 7 2 8 CRT VRS Adjustment 8 2 9 CRT Cut Off Adjustment 10 2 10 Purity and Convergen Adjustment 10 2 11 White Balance Adjustment 11 3 Conductor Views 12 4 Schematic Diagram 13 4 1 A Board 15 4 2 L Board 20 5 Parts Locations 23 6 Replacement Parts List ...

Page 3: ...osed 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 a...

Page 4: ...UOC SAW AV1 AV2 YUV1 IF H OUT MSP IC2101 AUDIO AMP IC2301A V H R G B SDA SCL PRIMARY LIFE CCT QIF AUDIO DEEMP AV1 AV2 AUDIO AMP IC2301 IC851 5V 8V Antenna CRT SAW SIF SPEAKER YUV AMOUT SOUND TRAP AUDIO SWITCH IC3151 R G B defl coil TUNER SW IFVO CVBS1 CVBSO CVBS2 CVBS3 SOUND MODULATION MONO STEREO 4 TC 14Z99M ...

Page 5: ...Adjustment How to set To set the Factory mode press Volume 0 dac on the TV and Timer Setting 30 min on the remote control and press Volume Down button on the TV together press recall on the remote control CHK should appear on right of TV screen To move from CHK1 to CHK2 mode etc please follow below rotation To Set Self Check Press the Volume Down button on TV then press the Off Timer button on rem...

Page 6: ...f 69 1 2 dBU with 75Ω loaded 2 Connect digital multimeter to RF AGC at Tuner Adjustment procedure 1 Select RF AGC indication in CHK2 on Screen by remote control at factory mode 2 Set RF AGC by using remote control Volume or Volume button until voltage AGC at Tuner reaches 2 3 0 1V at TPA 15 Tuner point 3 Increase RF signal strength by 2dB confirm AGC at Tuner voltage drop 2 6 NTSC Tint Colour Adju...

Page 7: ...become blue colour 5 Connect TPA 10 to TPA 20 6 Set A to 2 3 0 2V by BRT CHK2 at measurement point TPL 2 Fig 4 1 Connect oscilloscope probe to TPL 2 G OUT with 10kΩ series resistor and adjust Contrast so that B as in Fig 4 is 2 25 0 05V 2 Adjust Sub Colour so that waveform as in Fig 4 1 2 5 0 1V 3 Connect oscilloscope probe to TPL 1 R OUT with 10kΩ series resistor and confirm waveform as in Fig 5 ...

Page 8: ...et CY magnet 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 8 TC 14Z99M ...

Page 9: ... 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 9 TC 14Z99M ...

Page 10: ...ssible 8 Adjust the purity magnetic rings so that a vertical green field is obtained at the centre of the screen Fig 6 9 Slowly push the Deflection Yoke and set it where a uniform green field is obtained 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 2 9 CRT Cut Off Adjustment 1 Connec...

Page 11: ...0 263 0 010 nit 3 Adjustment B Drive so that Y 0 273 0 010 nit 4 Adjust Red and Blue with Green line at centre of the screen by rotating RB G static convergence magnetic rings 5 Lock convergence magnets with silicone sealer 6 Remove the DY wedges and slightly tilt the Deflection Yoke vertically and horizontally to obtain the good overall convergence Fig 9 7 Fix the Deflection Yoke by reinserting t...

Page 12: ...3 Conductor Views 12 TC 14Z99M ...

Page 13: ...4 Schematic Diagram 13 TC 14Z99M ...

Page 14: ...14 TC 14Z99M ...

Page 15: ...4 1 A Board 4 1 1 A Board 1 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 15 TC 14Z99M ...

Page 16: ...4 1 2 A Board 2 5 1B 2B 3B 4B 5B 6B 7B 8B 9B 1A 2A 3A 4A 5A 6A 7A 8A 9A 16 TC 14Z99M ...

Page 17: ...4 1 3 A Board 3 5 1C 2C 3C 4C 5C 6C 7C 8C 9C 1B 2B 3B 4B 5B 6B 7B 8B 9B 17 TC 14Z99M ...

Page 18: ...4 1 4 A Board 4 5 1D 2D 3D 4D 5D 6D 7D 1C 2C 3C 4C 5C 6C 7C 8C 9C 18 TC 14Z99M ...

Page 19: ...4 1 5 A Board 5 5 1D 2D 3D 4D 5D 6D 7D 19 TC 14Z99M ...

Page 20: ...4 2 L Board 4 2 1 L Board 1 3 1A 2A 3A 4A 5A 6A 7A 20 TC 14Z99M ...

Page 21: ...4 2 2 L Board 2 3 1B 2B 3B 4B 5B 6B 1A 2A 3A 4A 5A 6A 7A 21 TC 14Z99M ...

Page 22: ...4 2 3 L Board 3 3 1B 2B 3B 4B 5B 6B 22 TC 14Z99M ...

Page 23: ...5 Parts Locations 23 TC 14Z99M ...

Page 24: ...6 Replacement Parts List 24 TC 14Z99M ...

Page 25: ...art No Part Name Description Remarks C3151 ECJ2VF1C105Z C 1F Z 16V C3153 ECJ2VF1C105Z C 1F Z 16V C3155 ECJ2VF1C105Z C 1F Z 16V C3157 ECJ2VF1C105Z C 1F Z 16V C3173 ECJ2VF1C105Z C 1F Z 16V C3175 ECJ2VF1C105Z C 1F Z 16V C350 F2A1C101A180 E 100F 16V C359 ECQM4104KZB P 0 1F K 400V C368 ECJ2VC1H122J C 1200PF J 50V C370 ECKW3D102KBP C 1000PF K 2KV C371 ECEA1CN100UB E 10F 16V C373 F2A2E1000011 E 10F 250V ...

Page 26: ...61 B0HAMP000067 DIODE D362 B0HAMP000067 DIODE D363 B0ACQJ000001 DIODE D365 B0BA9R900005 DIODE D375 B0ACQJ000001 DIODE D402 B0HAHM000008 DIODE D403 B0ACMJ000001 DIODE D404 B0ACMJ000001 DIODE D511 MAZ4108J0F DIODE Ref No Part No Part Name Description Remarks D512 MA2B17100E DIODE D513 B0HAJP000015 DIODE D515 B0HAJP000015 DIODE D520 B0ACQJ000001 DIODE D551 MAZ30470HL DIODE D552 B0HAJP000015 DIODE D55...

Page 27: ...emarks R1130 D0GD101JA017 F 100OHM J 1 10W R1131 D0GD101JA017 F 100OHM J 1 10W R1132 D0GD101JA017 F 100OHM J 1 10W R1133 D0GD562JA017 F 5 6KOHM J 1 10W R1134 D0GD103JA017 F 10KOHM J 1 10W R1135 D0GD333JA017 F 33KOHM J 1 10W R1136 D0GD332JA017 F 3 3KOHM J 1 10W R1140 ERJ6ENF1201V M 1 2KOHM J 1 10W R1141 D0GD562JA017 F 5 6KOHM J 1 10W R1142 D0GD100JA017 F 10OHM J 1 10W R116 D0GD222JA017 F 2 2KOHM J ...

Page 28: ... M 0 47OHM J 1 2W R824 D0AE561JA046 C 560OHM J 1 4W R825 D0AE102JA046 C 1KOHM J 1 4W R830 D0AE121JA046 C 120OHM J 1 4W R831 D0AE272JA046 C 2 7KOHM J 1 4W Ref No Part No Part Name Description Remarks R832 D0AE473JA046 C 47KOHM J 1 4W R840 ERD75TAJ825 C 8 2MOHM J 3 4W R850 ERG3SJS470H M 47OHM J 3W R852 D0AE272JA046 C 2 7KOHM J 1 4W R854 ERJ6GEYJ103V M 10KOHM J 1 10W R855 ERDS2TJ752T C 7 5KOHM J 1 4W...

Page 29: ...5R TOUCH SWITCH SW1005 EVQ11G05R TOUCH SWITCH SW1006 EVQ11G05R TOUCH SWITCH SW801 ESB92DA1B POWER SWITCH TU001 ENV59K01G3YF TUNER X180 EFCS5M7MW3 CERAMIC FILTER X181 EFCS6R0MW5 CERAMIC FILTER X182 EFCS6R5MW5 CERAMIC FILTER X183 EFCS4R5MW5 CERAMIC FILTER X601 H0D120500020 CRYSTAL OSC XF101 K7256M SAW FILTER 29 TC 14Z99M ...

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