Aiwa TV-CN143 Скачать руководство пользователя страница 15

Cut Off Adjustment

2-1. Use the pattern generator to input  the white raster signal.
2-2. Using the volume keys on the jig remote controller, fix the figure of the brightest color on the screen to the level 127 and adjust

the other 2 cut off figures until a white picture appears on the screen. (Fig. 2-2)

Drive Adjustment

2-3. Using the volume keys on the jig remote controller, bring the figure of   4. G  DRIVE   up to more than 200 till the color becomes

greenish.

2-4. Reduce the numeric figure to the point where the greenish color disappears completely.
2-5. Use the volume keys on the jig remote controller to increase the numeric figure of   5. B  DRIVE   up to more than 200 till the color

becomes bluish.

2-6. Reduce the numeric figure to the point where the bluish color disappears completely.
2-7. Repeat the process of 2-1 to 2-6 for several times and adjust for whitest look.

Focus Adjustment

Input signal : Dot pattern
Adjustment point : SFR located at upper part of FBT (T601)
Measuring instrument : Pattern generator

   • Adjust SFR which is located at upper part of FBT (T601) in order get the best focus point for the dot.

Screen Adjustment:

Input signal : No signal (No raster)
Adjustment point : SFR located at lower part of FBT (T601)

1.

Display the adjustment menu screen by using the jig remote controller.

2.

Press “0” key of 10 numeric channel keypad to display a horizontal single line
on the screen. (Fig. 2-2)

3.

Adjust by SFR located lower part of FBT (T601) until the horizontal single line
starts to gleam.

4.

Repeat step 2. and return to the adjustment menu screen.

3-1.   SUB  BRIGHT    Sub-bightness Adjustment / Adjustment Menu Screen :

PAGE 3-2 (make sure of the order)

Input signal : Color bar (Stair step)
Measuring insrument : Pattern generator

1. Adjust the 2nd scale from the right to just visible brightness by using the

volume keys on the jig remote controller.

PAGE 3

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Содержание TV-CN143

Страница 1: ...415 9S1 S U P P L E M E N T This Service Manual contains the additional information NOTICES BEFORE REPAIRING DISASSEMBLY INSTRUCTIONS and ADJUSTMENT for the model TV CN143 NH If requiring the other in...

Страница 2: ...parts in the original positions 5 Take care of the cathode ray tube By setting an explosion proof cathode ray tube in this equipment safety is secured against implosion However when removing it or ser...

Страница 3: ...would come off from the CRT anode button easily causing an accident Do not turn the anode cap 3 If the anode cap is turned in the direction of its circumference the hook is likely to come off 2 2 Anod...

Страница 4: ...cap after installing it Never re use the hook when it has been deformed 1 If the anode cap is turned after it is installed it may come off Therefore arrange the high voltage cable before attaching the...

Страница 5: ...uld turn and cause an installation defect 4 Turn over the rubber cap symmetrically on the left and right See Figure 3 4 Caution Take great care not to damage the anode cap Figure 3 3 5 Fit your forefi...

Страница 6: ...turned over and visually check that the hook is engaged securely 9 Release your hand from the rubber cap of the anode cap Caution Cover the anode cap so that it does not lift 10 Hold the skirt of the...

Страница 7: ...01 CN802 Degauss cord 1 Disconnect CN903 CRT GND 2 Disconnect CN901 CN902 3 Remove the NK C B in the direction of arrow 1 See Figure 4 1 5 MAIN C B PWB MAIN REMOVAL 1 Remove connector CN401 2 Remove c...

Страница 8: ...about 0 3 V with flat envelope Confirm that ratio of the burst signal amplitude and the red signal amplitude is 0 30 0 66 If the output signal does not conform with the specifications calibrate the pa...

Страница 9: ...se looking from the CRT s back screen and disengage Be careful not to loose the lock ring too much If the magnet assembly has become shifted during adjustments secure it to the position in Fig 1 4 3 B...

Страница 10: ...g at the screen adjust the tilt of the deflecting yoke and tighten the DY lock screw 8 Shift the magnet assembly to the front toward the CRTfunnel stop movement before the adjustment position and then...

Страница 11: ...and the surface of the CRT funnel in order to secure the deflecting yoke Refer to Fig 1 9 Position of wedge Fig 1 9 Wedge Wedge Wedge In Fig 1 8 the two 6 pole magnets are stacked together so as to be...

Страница 12: ...1 R905 R906 R902 S901 R903 TP902 12 BT301 C332 TP201 AFT IC301 J403 J401 IC402 IC303 L205 VCO L201 SIF TP302 TP203 DE EMPHASIS IC3 IC1 TU101 J402 FOCUS SCREEN T601 FBT SFR T601 FBT 3 TP101 RF AGC TP10...

Страница 13: ...Measuring instrument Pattern generator Using the volume keys on the jig remote controller adjust the dot position to the exact vertical centre position in the crosshatch screen Fig 1 2 1 3 V SIZE Vert...

Страница 14: ...is case adjustment is possible if there is a load on ANT 1 6 RF AGC RF AGC Adjustment Menu Screen PAGE 1 6 Input signal ANT RF INPUT Test point TP 101 RF AGC TU101 1 pin Measuring instrument Oscillosc...

Страница 15: ...6 for several times and adjust for whitest look Focus Adjustment Input signal Dot pattern Adjustment point SFR located at upper part of FBT T601 Measuring instrument Pattern generator Adjust SFR which...

Страница 16: ...se the volume keys on the jig remote controller to align each bottom point of the waveform tangential to the linear ramp as shown in Fig 3 3 3 4 SUB COLOR Sub color Adjustment Adjustment Menu Screen P...

Страница 17: ...tment method receives nomal broadcasting Mode TUNER Test point INPUT TP 102 IF TU101 11 pin or Receiving condition OUTPUT TP 201 AFT IC301 44 pin Adjustment point L205 P IF Measuring instrument Oscill...

Страница 18: ...FINISH key on the jig remote controller Do not press this key during general repairs Aging Mode Operation Method Make sure that confirmation when replacing EEP ROM 1 Enter to the aging mode by pressin...

Страница 19: ...ures Sample calculation of displayed hexadecimal figures AFT OK 1234 H MONO Adjustment Mode Operation Method 1 Return to the aging display by pressing the SYSTEM key and press TEST key once again to e...

Страница 20: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 9820572 0251431...

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