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Panasonic TX-21FG25R, Руководство по обслуживанию

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Panasonic TX-21FG25R Скачать руководство пользователя страница 9

4.5. ADJUSTMENT OF CRT VRS

NOTE: FOR FLAT CRT ONLY

PREPARATION

 1. Set DY to CRT not to tilt up and down left and right

deflection.

 2. Set CY to CRT and set CY magnet primarily.

Pur Mg : Set Pur Mg that 2 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)

9

TX-21FG25R

Содержание TX-21FG25R

Страница 1: ...ustrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TX 21FG25R GP4N Chassis Video 31 5 MHz D K 32 5 MHz B G 32 0 MHz I 32 5 MHz M Sound 33 57 MHz PAL Colour 33 6 MHz SECAM 34 42 MHz NTSC 33 75 MHz SECAM Receiving Stereo Sound System AV STEREO Video Audio Terminals AV 1 2 3 Y PB PR Phone Type Y 1 0Vp p 75Ω PB PR 0 7Vp p 75Ω Video 1 0Vp p 75Ω Audio Approx 4...

Страница 2: ...unction 5 3 4 Service Mode 2 Controls OPTION data 1 3 5 4 Adjustment Procedure 6 4 1 Adjustment Procedure 6 4 2 COLOUR PURITY 6 4 3 CONVERGENCE 7 4 4 WHITE BALANCE MARKET MODE CHK 4 8 4 5 ADJUSTMENT OF CRT VRS 9 5 Conductor Views 10 5 1 D Board 10 6 Schematic Diagrams 11 6 1 SCHEMATIC DIAGRAM FOR GP4 CHASSIS 11 6 2 A Board 13 6 3 L Board 18 6 4 PP Board 21 7 Parts Locations 24 8 Replacement Parts ...

Страница 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...

Страница 4: ...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 4 TX 21FG25R ...

Страница 5: ...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...

Страница 6: ...st 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 2 ...

Страница 7: ...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 7 TX 21FG25R ...

Страница 8: ...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...

Страница 9: ...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 9 TX 21FG25R ...

Страница 10: ...5 Conductor Views 5 1 D Board 10 TX 21FG25R ...

Страница 11: ...6 Schematic Diagrams 6 1 SCHEMATIC DIAGRAM FOR GP4 CHASSIS 11 TX 21FG25R ...

Страница 12: ...12 TX 21FG25R ...

Страница 13: ...6 2 A Board 6 2 1 A Board 1 5 1A 2A 3A 4A 5A 6A 7A 8A 9A 13 TX 21FG25R ...

Страница 14: ...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 14 TX 21FG25R ...

Страница 15: ...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 15 TX 21FG25R ...

Страница 16: ...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 16 TX 21FG25R ...

Страница 17: ...6 2 5 A Board 5 5 1D 2D 3D 4D 5D 6D 7D 8D 9D 17 TX 21FG25R ...

Страница 18: ...6 3 L Board 6 3 1 L Board 1 3 1A 2A 3A 4A 5A 6A 7A 18 TX 21FG25R ...

Страница 19: ...6 3 2 L Board 2 3 1A 2A 3A 4A 5A 6A 7A 1B 2B 3B 4B 5B 6B 7B 19 TX 21FG25R ...

Страница 20: ...6 3 3 L Board 3 3 1B 2B 3B 4B 5B 6B 7B 20 TX 21FG25R ...

Страница 21: ...6 4 PP Board 6 4 1 PP Board 1 3 1A 2A 3A 4A 5A 6A 7A 21 TX 21FG25R ...

Страница 22: ...6 4 2 PP Board 2 3 1B 2B 3B 4B 5B 6B 7B 1A 2A 3A 4A 5A 6A 7A 22 TX 21FG25R ...

Страница 23: ...6 4 3 PP Board 3 3 1B 2B 3B 4B 5B 6B 7B 23 TX 21FG25R ...

Страница 24: ...7 Parts Locations 24 TX 21FG25R ...

Страница 25: ...8 1 Replacement Parts List Notes 8 Replacement Parts List 25 TX 21FG25R ...

Страница 26: ... 16V C1833 F1J1H104A717 C 0 1UF 50V C1834 ECA1CM101B E 100UF 16V C2113 ECA1HM3R3B E 3 3UF 50V C2117 F1J1H104A578 C 0 1UF 50V C2129 ECA1CM102B E 1000UF 16V C2303 ECEA1EKS4R7 E 4 7UF 25V C2305 ECJ2VB1H102J C 1000PF 50V C2306 ECJ2VB1H102J C 1000PF 50V C2308 F1J1H104A578 C 0 1UF 50V C2309 F1J1H104A578 C 0 1UF 50V C2314 F2A1E470A149 E 47UF 25V C2315 F2B1E222A005 ELECTROLYTIC CAPACITOR C2317 F1J1H104A57...

Страница 27: ...100UF 6 3V C670 F1J1H104A578 CERAMIC CAPACITOR C671 F1J1H104A578 CERAMIC CAPACITOR C672 F1J1H104A578 CERAMIC CAPACITOR C805 ECQB1H103JF P 0 01UF 50V C806 ECKWAE472ZED C 4700PF Z 500V C807 ECKWAE472ZED C 4700PF Z 500V C808 ECKWAE472ZED C 4700PF Z 500V Ref No Part No Part Name Description Remarks C809 ECKWAE472ZED C 4700PF Z 500V C810 F2B2G2710010 ELECTROLYTIC CAPACITOR C811 ECQM4473JZ P 0 047UF J 4...

Страница 28: ...No Part No Part Name Description Remarks L554 G0A682AA0006 PEAKING COIL L557 G0D820000005 LINEARITY COIL L561 J0JKB0000034 EMI FILTER L601 G0C4R7JA0055 PEAKING COIL L602 G0C100K00008 COIL L603 G0C4R7JA0055 PEAKING COIL L604 G0C100K00008 COIL L605 TALV35VB5R6K PEAKING COIL L606 G0C100K00008 COIL L607 G0A3R3HA0011 CHOKE COIL L608 G0C4R7JA0055 PEAKING COIL L609 G0C100K00008 COIL L610 TALV35VB8R2K PEA...

Страница 29: ...10W R3022 ERJ6GEYJ153 M 15KOHM J 1 10W R3023 ERJ6GEYJ101 M 100OHM J 1 10W R3024 ERJ6GEYJ153 M 15KOHM J 1 10W Ref No Part No Part Name Description Remarks R3026 ERJ6GEYJ103 M 10KOHM J 1 10W R303 ERJ6GEYJ103 M 10KOHM J 1 10W R304 ERJ6GEYJ240 FIXED RESISTOR R305 ERJ6GEYJ240 FIXED RESISTOR R306 ERJ6GEYJ240 FIXED RESISTOR R307 ERJ6GEYJ681 M 680OHM J 1 10W R308 ERJ6GEYJ681 M 680OHM J 1 10W R309 ERJ6GEYJ...

Страница 30: ...M J 1 4W R864 ERJ6GEYJ103 M 10KOHM J 1 10W R866 ERJ6GEYJ392 M 3 9KOHM J 1 10W R868 ERDS1TJ221 C 220OHM J 1 2W R882 ERJ6GEYJ332 M 3 3KOHM J 1 10W R883 ERX3FJ3R3H METAL FILM RESISTOR Ref No Part No Part Name Description Remarks R884 ERJ6GEYJ562 M 5 6KOHM J 1 10W R885 ERJ6GEYJ752 M 7 5KOHM J 1 10W R886 ERJ6GEYJ433 M 43KOHM J 1 10W R887A ERG1SJ273P M 27KOHM J 1W R888 ERJ6GEYJ103 M 10KOHM J 1 10W TRANS...

Страница 31: ...RT SOCKET SW1011 EVQ11G05R SWITCH SW1012 EVQ11G05R SWITCH SW1013 EVQ11G05R SWITCH SW1014 EVQ11G05R SWITCH SW1015 EVQ11G05R SWITCH SW1016 EVQ11G05R SWITCH SW840 ESB92DA1B SWITCH T601 TSK1040 BEAD CORE TU001 ENV59K01G3RF TUNER X1801 H0D202500004 CRYSTAL OSC X601 H0D202500002 CRYSTAL OSC XF101 J0C3525A0002 DELAY LINE 31 TX 21FG25R ...

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