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akira CT-25NI9AN Service Manual

Colour tv chassis: 5n11
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Summary of Contents for akira CT-25NI9AN

  • Page 2 CHASSIS: 5N11 MODEL: CT-25NI9AN Model No: CT-25NI9AN Version 1.0...

  • Page 3: Table Of Contents

    CONTENTS 1. SPECIFICATIONS …………….…………………………………………… 4 2. X- RAY RADIATION PRECAUTION …………………..………………… 5 3. SAFETY PRECAUTION ………………………………………………..…… 5 4. PRODUCT SAFETY NOTICE …………………………………………….. 5 5. ALIGNMENT INSTRUCTION ………………………………………………. 6 6. SCHEMATIC DIAGRAM ……………………………………………………. 14 Model No: CT-25NI9AN Version 1.0...

  • Page 4: Specifications

    : 25” = 716(W) x 470(D) x 576(H) mm Net Weigh : 25” (35kg) REMOTE CONTROL Transmitting System : Infra-red Power Supply : DC 3V (1.5Vx2) Design and specifications are subject to change without prior notice Model No: CT-25NI9AN Version 1.0...

  • Page 5: X-Ray Radiation Precaution

    Connection wires must be kept away from components with high voltage or high temperature. If any fuse in this TV receiver is blow, replace it with the FUSE specified in the chassis part list. The receiver is designed to operate with 220V(50/60Hz) AC mains. Model No: CT-25NI9AN Version 1.0...

  • Page 6: Alignment Instruction

    2-1.2 Adjust the focus knob of FBT to get the clearest sharp picture. 2.3. Horizontal centering adjustment 2.3.1. Receive monoscope pattern; 2.3.2. Press 'factory' key (See Note 1) one time and go to system parameter Model No: CT-25NI9AN Version 1.0...
  • Page 7 Press 'PROG+' key and 'PROG-' key, select 'RF AGC'; d. Press 'VOL+' key and 'VOL-' key to change the value of 'RF AGC' until picture's noise disturbing just disappears ; Exit system parameter adjustment menu by pressing 'factory' key twin. Model No: CT-25NI9AN Version 1.0...
  • Page 8 TV receiver can be sent to warm up line. b. Before exit warm up line, press 'factory' key three times continue, at this time exit warm up mode, there is no signal and the LOGO ‘AKIRA’ pattern will appear. NOTES: 1.
  • Page 9 1 2 3 4 5 6 7 8 1 3 7 1 4 0 4 6 The first digit 8 Digit is set by Factory. The last two digit “9” and “A” is the random data from NN5198/NN5199. Model No: CT-25NI9AN Version 1.0...
  • Page 10 | | | | +----------> Reserved for internal using, must be zero | | | +------------> BBE sound ON/OFF | | +--------------> QSS switch ON/OFF | +----------------> SIF Internal/External (1/0) (For NN5198) +------------------> Reserved for internal using, must be zero Model No: CT-25NI9AN Version 1.0...
  • Page 11 5. Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good overall convergence. 6. Fix the deflection yoke by wedges. 7. If purity error is found, follow “PURITY ADJUSTMENT” instructions. Model No: CT-25NI9AN Version 1.0...
  • Page 12 11. Ensure the factory mode setting are set. Set-off the factory mode function and last switch off the TV set. 12. All the “NG” sets must send for repairing and recording for reference. 13. Check the AV input and output the picture and sound must be OK. Model No: CT-25NI9AN Version 1.0...
  • Page 13 - the high pot tester gun pointed at metal part of TV set body. - switch on the switch to test the high electric power. - connect with high voltage within 5 second and remove the tester gun point. Model No: CT-25NI9AN Version 1.0...

  • Page 14: Schematic Diagram

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