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6.4.4. G Board (4/4)

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CT-F2936LP

Summary of Contents for CT-F2936LP

Page 1: ...AM Video Audio Terminals DVD 2006 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law CT F2936LP GP41 Chassis Y 1 0 Vp p 75Ω PB 0 7 Vp p 75Ω PR 0 7 Vp p 75Ω AV 1 2 3 Video in 1 0 Vp p 75Ω Audio in Approx 0 5V 47KΩ Audio Amp AUDIO L R 0 5VRMS PHONE JACK TYPE x 2 High Voltage 31 0 1 at zero beam current Picture Tube A68LZU185X E Type ...

Page 2: ... 3 Service Mode 1 Function 6 3 4 Service Mode 2 Controls OPTION data 1 3 6 4 Adjustment Procedure 7 4 1 Adjustment Procedure 7 4 2 COLOUR PURITY 7 4 3 CONVERGENCE 8 4 4 WHITE BALANCE MARKET MODE CHK 4 9 4 5 ADJUSTMENT OF CRT VRS 10 5 Conductor Views 11 6 Schematic Diagrams 12 6 1 SCHEMATIC DIAGRAM FOR GP41 CHASSIS 12 6 2 A Board 14 6 3 L Board 19 6 4 G Board 22 7 Parts Locations 26 8 Replacement P...

Page 3: ...c When the exposed metallic part has a return path to the chassis the reading should be between 4 MΩ Ω Ω Ω and 20 MΩ Ω Ω Ω When the exposed metal does not have a return path to the chassis the reading must be zero 1 3 Leakage Current Hot Check See Fig 1 1 Plug the AC cord directly into the AC outlet Do not use an isolation transformer for this check 2 Connect a 2 kΩ 10 W resistor in series with an...

Page 4: ...SWITCH G GEOMAGNETIC WOOFER AMP IC2401 PVP IC1801 R G B SCL SDA CVBS IN REAR INPUTS AV1 V L R AV 3 YUV V L R VCT IF IC601 V_IN CVBS OUT MON_OUT R G B R G B MON_OUT V L R EEPROM IC1101 VM SCL SDA A_IN IF H A AUDIO OUT V SPEAKER AUDIO AMP IC2301 V OUT H OUT TUNER FRONT INPUTS AV2 V L R PP 29 models PIP models 4 CT F2936LP ...

Page 5: ...2 Service Hints 2 1 HOW TO MOVE CHASSIS INTO SERVICE POSITION 1 Remove 9 screws 2 Draw out Main Chassis 3 Stand the Main Chassis 5 CT F2936LP ...

Page 6: ...d item 7 Normal remote exit service mode 11 ANGEL 128 127 12 BOW 128 127 13 DVCO 128 127 14 H POS 128 127 15 G CUT OFF N A 16 B CUT OFF 0 511 17 R DRIVE 0 511 18 G DRIVE 0 511 19 B DRIVE 0 511 20 SUB Bright 128 127 5 Volume decrement of selected item 6 OK remote store save selected item 7 Normal remote exit service mode NOTE Service mode 2 options bit refer to each model spec 3 Market Mode Functio...

Page 7: ...djust roughly the static convergence magnets 5 Apply a green pattern signal 6 Loosen a clamp screw for the Deflection Yoke and move the Deflection Yoke as close to the purity magnet as possible 7 Adjust the purity magnet so that a vertical green field is obtained at the center of the screen 4 1 3 NTSC TINT COLOUR Item preparation 1 Connect oscilloscope probe to TPL1 R OUT with 10kΩ series resistor...

Page 8: ...e at center of the screen 4 Adjust Red and Blue with Green line at center of the screen by rotating RB G static convergence magnet 5 Lock convergence magnets with silicone sealer 6 Remove the DY wedges and slightly tilt the Deflection Yoke vertically 7 Fix the Deflection Yoke by re inserting the DY wedges 8 If purity error is found repeat Colour Purity adjustment 8 CT F2936LP ...

Page 9: ...ure 4 Adjust the remaining R and B CUTOFF controls so as to get a white horizontal line on the screen 5 Return to full field SCAN by pushing the position 5 key on the remote control 6 Adjust the R Drive and B Drive controls as to obtain a uniform white on the white bar of the greyscale pattern 7 Confirm correct B W rendition and greyscale tracking or repeat CUTOFF and drive control setup Note Writ...

Page 10: ...magnets are top position VRS Mag Set VRS Mg that 2 magnets are horizontal position only 21 25 29 3 Set geomagnetic corection DAC AS IN TABLE 1 ADJUSTMENT 1 Receive the white balance pattern 2 Adjust V CENTER 3 Set R B CUT OFF to minimum and set G CUT OFF to center 4 Receive the aging pattern 5 Set 2 magnet of vertical position to up and down equally so that center part of CRT Fig 4 10 CT F2936LP ...

Page 11: ...5 Conductor Views 11 CT F2936LP ...

Page 12: ...6 Schematic Diagrams 6 1 SCHEMATIC DIAGRAM FOR GP41 CHASSIS 12 CT F2936LP ...

Page 13: ...13 CT F2936LP ...

Page 14: ...6 2 A Board 6 2 1 A Board 1 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 14 CT F2936LP ...

Page 15: ...6 2 2 A Board 2 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 1B 2B 3B 4B 5B 6B 7B 8B 9B 15 CT F2936LP ...

Page 16: ...6 2 3 A Board 3 5 1B 2B 3B 4B 5B 6B 7B 8B 9B 1C 2C 3C 4C 5C 6C 7C 8C 9C 16 CT F2936LP ...

Page 17: ...6 2 4 A Board 4 5 1C 2C 3C 4C 5C 6C 7C 8C 9C 1D 2D 3D 4D 5D 6D 7D 8D 9D 17 CT F2936LP ...

Page 18: ...6 2 5 A Board 5 5 1D 2D 3D 4D 5D 6D 7D 8D 9D 18 CT F2936LP ...

Page 19: ...6 3 L Board 6 3 1 L Board 1 3 1A 2A 3A 4A 5A 6A 7A 19 CT F2936LP ...

Page 20: ...6 3 2 L Board 2 3 1A 2A 3A 4A 5A 6A 7A 1B 2B 3B 4B 5B 6B 7B 20 CT F2936LP ...

Page 21: ...6 3 3 L Board 3 3 1B 2B 3B 4B 5B 6B 7B 21 CT F2936LP ...

Page 22: ...6 4 G Board 6 4 1 G Board 1 4 1A 2A 3A 22 CT F2936LP ...

Page 23: ...6 4 2 G Board 2 4 1A 2A 3A 1B 2B 3B 4B 5B 23 CT F2936LP ...

Page 24: ...6 4 3 G Board 3 4 1B 2B 3B 4B 5B 1C 2C 3C 4C 5C 24 CT F2936LP ...

Page 25: ...6 4 4 G Board 4 4 1C 2C 3C 4C 5C 25 CT F2936LP ...

Page 26: ...7 Parts Locations 26 CT F2936LP ...

Page 27: ...8 1 Replacement Parts List Notes 8 Replacement Parts List 27 CT F2936LP ...

Page 28: ...rks C3151 F2A1H2R2A118 E 2 2UF 50V C355 ECWF2334JSR P 0 33UF J 250V C356 ECJ2VC1H102J C 1000PF J 50V C360 ECKW3D102KBP C 1000PF K 2KV C362 ECEA1CN100U E 10UF 16V C363 ECA1CM331B E 330UF 16V C368 ECA2EM100B E 10UF 250V C370 ECJ2VF1H222Z C 2200PF Z 50V C371 ECJ2VF1H222Z C 2200PF Z 50V C372 ECJ2VF1H222Z C 2200PF Z 50V C375 ECWF2154JSR P 0 15UF J 250V C401 ECJ2VC1H560J C 56PF J 50V C404 ECQB1222JF P 2...

Page 29: ... 220UF 16V DIODES D1061 B3AGA0000089 DIODE D1132 B0BA3R800012 DIODE D2103 B0AACK000004 DIODE D2107 B0AACK000004 DIODE D2108 B0AACK000004 DIODE D354 B0HAMP000067 DIODE D355 B0HAMP000067 DIODE D356 B0HAMP000067 DIODE D361 B0AACK000004 DIODE D362 B0AACK000004 DIODE D363 B0AACK000004 DIODE Ref No Part No Part Name Description Remarks D364 B0AACK000004 DIODE D365 B0AACK000004 DIODE D366 B0AACK000004 DI...

Page 30: ...000012 TRANSISTOR Q958 2SD0601A0L TRANSISTOR RESISTORS R005 ERJ6GEYJ512 M 5 1KOHM J 1 10W R006 ERJ6GEYJ473 M 47KOHM J 1 10W R007 ERJ6GEYJ682 M 6 8KOHM J 1 10W R008 ERJ6GEYJ101 M 100OHM J 1 10W R009 ERJ6GEYJ101 M 100OHM J 1 10W R1026 ERJ6ENF2211 F 2 2KOHM 1 10W R1027 ERJ6ENF3241 M3 24KOHM 1 10W R1028 ERJ6ENF5111 F 5 11KOHM 1 10W R1029 ERJ6ENF9091 M9 09KOHM 1 10W R1030 ERJ6ENF2152 M21 5KOHM 1 10W R1...

Page 31: ... R615 ERJ6GEYJ122 M 1 2KOHM J 1 10W R616 ERJ6GEYJ563 M 56KOHM J 1 10W R619 ERJ6GEYJ332 M 3 3KOHM J 1 10W Ref No Part No Part Name Description Remarks R620 ERJ6ENF1002 M 10KOHM 1 10W R621 ERJ6ENF2002 M 20KOHM 1 10W R624 ERJ6GEYJ102 M 1KOHM J 1 10W R625 ERJ6GEYJ102 M 1KOHM J 1 10W R626 ERJ6GEYJ103 M 10KOHM J 1 10W R627 ERJ6GEYJ103 M 10KOHM J 1 10W R628 ERJ6GEYJ823 M 82KOHM J 1 10W R629 ERJ6GEY0R00 M...

Page 32: ...M J 1 10W JA2 ERJ6GEY0R00 M 0OHM J 1 10W JA20 ERJ6GEY0R00 M 0OHM J 1 10W JA21 ERJ6GEY0R00 M 0OHM J 1 10W JA3 ERJ6GEY0R00 M 0OHM J 1 10W JA4 ERJ6GEY0R00 M 0OHM J 1 10W JA5 ERJ6GEY0R00 M 0OHM J 1 10W JA6 ERJ6GEY0R00 M 0OHM J 1 10W JA7 ERJ6GEY0R00 M 0OHM J 1 10W JA8 ERJ6GEY0R00 M 0OHM J 1 10W JA9 ERJ6GEY0R00 M 0OHM J 1 10W JK3002 K4BK10B00003 REAR AV TERMINAL JK3003 K4BK08B00008 AV TERMINAL JK3201 K4...

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