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Model No: CT-25TW9A

N

Version 1.0

 

 

 
 

e.  Horizontal Center and EW adjustment (KEY 1) 

i.  Received 50HZ monoscope PATTERN. Set TV standard status. Adjust 

5HSH to obtain horizontal center at the center of CRT screen. 

ii.  Receive 50HZ cross hatch pattern. Set TV standard status. Adjust 5EWW, 

5PWW, 5UCR, 5LCR, 5PAR, 5BOW, 5EWT to obtain picture’s Horizontal 
redisplay ratio more than 90% in factory mode. 

 
Horizontal parallelogram 50Hz 

5PAR 

Horizontal bow 50Hz 

5BOW 

Horizontal shift 50Hz 

5HSH 

EW width 50Hz 

5EWW 

EW parabola /width 50Hz 

5EWP 

EW upper corner parabola 50Hz 

5UCR 

EW lower corner parabola 50Hz 

5LCR 

EW trapezium 50Hz 

5EWT 

 
 

iii.  Receive 60HZ monoscope PATTERN. Set TV standard status. Adjust 

6HSH to obtain horizontal center at the center of CRT screen. 

iv.  Receive 60HZ cross hatch pattern. Set TV standard status. Adjust 6EWW, 

6PWW, 6URC, 6LCR, 6BOW, 6EWT to obtain picture’s Horizontal 
redisplay ratio more than 90% in factory mode. 
 

Horizontal parallelogram 60Hz 

6PAR 

Horizontal bow 60Hz 

6BOW 

Horizontal shift 60Hz 

6HSH 

EW width 60Hz 

6EWW 

EW parabola/ width 60Hz 

6EWP 

EW upper corner parabola 60Hz 

6UCR 

EW lower corner parabola 60Hz 

6LCR 

EW trapezium 60Hz 

6EWT 

 

 

  

f.  OSD position adjustment. 

i.  Menu OSD position adjustment. Received 50/60Hz cross hatch pattern. Set 

TV standard status. Press KEY 2 in factory mode, adjust 5VOF /6VOF and 
HOF item, to obtain menu OSD at the center of CRT screen.  

ii.  LOGO position adjustment. Receive 50/60Hz cross hatch pattern. Set TV 

standard status. Press KEY 7 in factory mode, adjust XMIN, XMAX, 
YMIN, and YMAX item, to obtain LAGO at the center up to 1/3 of CRT 
screen.  

iii.  TELETEXT OSD position adjust. Received 50/60HZ TELETEXT signal. 

Set TV standard status. Press KEY 7 in factory in factory mode, adjust 
TXMI and 5TYM/6TYM item, to obtain INDEX at the center of CRT 
screen. 

g.  White Balance adjust (Applied in factory) (KEY 3) 

i.  Normally, 5P60 can auto adjust white balance, but for some CRT need to 

adjust white balance carefully by hand. Set BRIGHTNESS and 
CONTRAST at normal status, receive GREY SCAL and entering factory 
mode press KEY 3, set WPR at 31, adjust WPG and WPR to obtain white 
balance. 

 
 
 
 
 
 

Содержание CT-25TW9AN

Страница 1: ...C C Co o ol l lo o ou u ur r r T T TV V V S S Se e er r rv v vi i ic c ce e e M M Ma a an n nu u ua a al l l...

Страница 2: ...2 Model No CT 25TW9AN Version 1 0 9 CHASSIS 5P60 MODEL CT 25TW9AN...

Страница 3: ...CONTENT SAFETY NOTICE 4 TECHNICAL SPECIFICATION 5 GENERAL SPECIFICATION 6 CHASSIS BLOCK DIAGRAM 7 CHASSIS WIRING DIAGRAM 17 PBC BOARD 18 SERVICE ADJUSTMENT 21 MECHANICAL DISASSEMBLY 30 SCHEMATIC DIAG...

Страница 4: ...of X RADIATION in television receiver is the picture tube The picture tube is specially constructed to limit X RADIATION emissions For continued X_RADIATION protection the replacement tube must be the...

Страница 5: ...nnel Memories NTSC Playback Front or Side AV Input S Video Input On Screen Display Sleep Timer Auto Search Store Shut Off Full function Remote Control 8W X 2 Speakers 746 W x 483 D x 519 H mm Weight 3...

Страница 6: ...CH 471 25 863 25 MHz TUNING SYSTEM VS TUNING 1 AV IN 1 AV OUT 1 FRONT AV INPUT 1 S VIDEO IN 1 YUV IN OPTION AV IN OUT 21 PIN SCART OPTION Y C IN y 1 0 0 2Vp p 75 ohm c 0 7Vp p 75 ohm VIDEO IN 1 0 0 2V...

Страница 7: ...7 Model No CT 25TW9AN Version 1 0 CHASSIS BLOCK DIAGRAM...

Страница 8: ...UNIVERSAL HI FI AUDIO PROCESSOR TDA9859H IC605 IC606 REGULATORS L7800 SERIES 1 INPUT 2 OUTPUT SERIES PASS ELEMENT SOA PROTECTION REFERENCE VOLTAGE ERROR AMPLIFIER THERRMAL PROTECTION STARTING CIRCUIT...

Страница 9: ...9 Model No CT 25TW9AN Version 1 0 IC 402 SRS TRUBASS NJM2192 AM...

Страница 10: ...10 Model No CT 25TW9AN Version 1 0 IC 401 AV SWITCH W IIC BUS CONTROL M52797SP...

Страница 11: ...11 Model No CT 25TW9AN Version 1 0 IC 101 SYSTEM TV SIGNAL PROCESSOR TELETEXT TDA93XXPS N2 5I...

Страница 12: ...12 Model No CT 25TW9AN Version 1 0 IC 103 DIGITAL TV SOUND DEMODULATOR DECODER TDA9874AH...

Страница 13: ...13 Model No CT 25TW9AN Version 1 0 IC 302 VERTICAL DEFLECTION BOOSTER TDA4863AJ IC 404 BTL AUDIO AMPLIFIER TDA8944J...

Страница 14: ...14 Model No CT 25TW9AN Version 1 0 IC 803 MULTISTANDARD COMB FILTE TDA9181T IC 802 HEF4052...

Страница 15: ...15 Model No CT 25TW9AN Version 1 0 IC 601 PHOTO TRANSISTOR TLP621 IC 604 POWER SWITCH KA5Q12XXRF TLP621 1 2 3 4 1 ANODE 2 CATHODE 3 EMITTER 4 COLLECTOT...

Страница 16: ...B E C18 15 C B E B42 0 C B E B42 1 C B E C B E A1015 PNP PNP NPN NPN PNP C21 20 C B E PNP C27 17 C B E NPN NPN L7805 INPUT GND OUTPUT L7812 INPUT GND OUTPUT L7809 INPUT GND OUTPUT Se140 Vout SENSE COL...

Страница 17: ...CN 706 FROM Cn805 H403 CN 703 FROM CN801A FOCUS SCREEN CN401A H502 FROM CN 302 CN 601 CN 602 H501 FROM CN 203 CN 806 TO CN 705 CN 805 TO CN 706 CN 203 TO H501 CN 202 TO KEYBOARD CN 803 TO CN 704 CN 80...

Страница 18: ...18 Model No CT 25TW9AN Version 1 0 PBC BOARD...

Страница 19: ...19 Model No CT 25TW9AN Version 1 0 CAM350 PRO V 6 0 Wed Jan 15 10 17 54 2003 Untitled...

Страница 20: ...20 Model No CT 25TW9AN Version 1 0 SIDE FRONT AV AV PCB TOP LAYER CONTROL PCB TOP LAYER 5800 D25TMY 01...

Страница 21: ...ance c Pattern Generator d DC regulator power supply e Digital Voltmeter f Sweep signal generator g 20MHz 2 channel Oscilloscope h Signal condition ITEMS LOGO PICTURE CARRIER PATTERN SYSTEM SOUND MODE...

Страница 22: ...nter at the center of CRT screen in factory mode ii Receive 50HZ monoscope pattern Set TV standard status Adjust 5VAM to obtain picture s vertical redisplay ratio more than 90 in factory mode Vertical...

Страница 23: ...R Horizontal bow 60Hz 6BOW Horizontal shift 60Hz 6HSH EW width 60Hz 6EWW EW parabola width 60Hz 6EWP EW upper corner parabola 60Hz 6UCR EW lower corner parabola 60Hz 6LCR EW trapezium 60Hz 6EWT f OSD...

Страница 24: ...o NOISE on screen iv Press key to exit factory mode i E2PROM initialization i When in repairing we can replace E2PROM by other empty or unempty E2PROM but you must initialize E2PROM to avoid unknown t...

Страница 25: ...25 Model No CT 25TW9AN Version 1 0 Service items This appendix shows information about service items that are available The table list all possible available service items with its...

Страница 26: ...26 Model No CT 25TW9AN Version 1 0...

Страница 27: ...27 Model No CT 25TW9AN Version 1 0...

Страница 28: ...28 Model No CT 25TW9AN Version 1 0...

Страница 29: ...ake the green area at the center of CRT screen 6 Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained Tighten the clamp screw of the deflection yo...

Страница 30: ...scharge the picture tube anode 2nd anode lead to the dag coating picture tube grounding lead 3 Disconnect Degaussing coil socket KE picture tube socket Deflection yoke connector KDY speaker connectors...

Страница 31: ...tube 1 Remove chassis referring to chassis removal instructions 2 Place cabinet front face down on the soft surface 3 Remove the screw on each corner of the picture tube and GENTLY lift the picture tu...

Страница 32: ...270PF D505 1N4148 D506 BA157 2 R528 12K S Gnd R526 220 S Gnd R531 22 R532 2 2K R533 270 R534 22 Q531 C4544 Q532 BF420 Q533 BF421 R535 270 C502 270PF D502 1N4148 D503 BA157 2 R538 12K S Gnd R536 220 S...

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