Toshiba 21V53 Скачать руководство пользователя страница 1 | Manualshive

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SERVICE MANUAL

PRINTED IN UK. 2005 C

COLOUR TELEVISION

21V53

TOSHIBA

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Содержание 21V53

Страница 1: ...SERVICE MANUAL PRINTED IN UK 2005 C COLOURTELEVISION 21V53 TOSHIBA ...

Страница 2: ...hes to VERTICAL SCAN DISABLE mode It is useful to adjust screen voltage BLUE BUTTON It is used to adjust AGC and IF automatically on service menu OSD Select OSD parameter on service menu Adjust the horizontal position of OSD to the middle of screen by using the reference bar on bottom of service menu Min Value 000 Max Value 127 Recommended Value 082 IF Adjustments IF1 IF Coarse Adjustment 004 IF2 ...

Страница 3: ...1 parameter from service menu and press BLUE INSTALL button from remote controller IF adjustment will be done automatically by software See the IF indicator on service menu it must be like on FIGURE 1 shown below AGC Automatic Gain Control In order to do AGC adjustment enter a 60µdBV RF signal level from channel C 12 224 25 MHz Select AGC parameter from service menu Press BLUE INSTALL button from ...

Страница 4: ...ertical scan Adjust screen via screen pot For a thin horizontal line Press yellow button again to enable vertical scan Press TV button to leave service menu VLIN Vertical Linearity Enter a PAL B G circle test pattern via RF Change VLIN till you see circle as round as possible Min Value 000 Max Value 063 Recommended Value 045 SCREEN ADJ POT ...

Страница 5: ... Check and readjust Vertical Size item if the adjustment becomes improper after some other geometric adjustments are done Min Value 000 Max Value 063 Recommended Value 056 VP1 Vertical Position for 50 Hz Enter a PAL B G circle test pattern via RF Change Vertical Position till the test pattern is vertically centered Horizontal line at the center pattern is in equal distance both to upper and lower ...

Страница 6: ...ment becomes improper after some other geometric adjustments are done Min Value 000 Max Value 063 Recommended Value 038 VP2 Vertical Position for 60 Hz Enter an NTSC M circle test pattern via RF or video inputs Change Vertical Position till the test pattern is vertically centered Horizontal line at the center pattern is in equal distance both to upper and lower side of the picture tube Check and r...

Страница 7: ... remote controller Change RGB Horizontal Position till the picture is horizontally centered Check and readjust RGBH item if the adjustment becomes improper after some other geometric adjustments are done Min Value 000 Max Value 063 Recommended Value 007 4 3 50Hz GEOMETRY ADJ 16 9 50Hz GEOMETRY ADJ 16 9 60Hz GEOMETRY ADJ 4 3 60Hz GEOMETRY ADJ ...

Страница 8: ... Adjustment for RED Use this parameter to set the strength of RED in White Min Value 000 Max Value 063 JVC Default 040 WG White Point Adjustment for GREEN Use this parameter to set the strength of GREEN in White Min Value 000 Max Value 063 JVC Default 040 WB White Point Adjustment for BLUE Use this parameter to set the strength of BLUE in White Min Value 000 Max Value 063 JVC Default 040 BR Bias f...

Страница 9: ...nput signal amplitude Besides APR increases the contrasts of pictures with low contrast and avoids the clipping at RGB output for pictures with high amplitude To enable APR refer to OP3 in Option Bytes Min Value 000 Max Value 015 JVC Default 010 The following default values are the factory settings of the corresponding items Except Volume all values are restored when STANDARD button is pushed duri...

Страница 10: ...ot determined by JVC yet WG R White Point Adjustment for GREEN RGB Mode Use this parameter to set the strength of GREEN in White for a RGB Pattern Default Value Not determined by JVC yet WB R White Point Adjustment for BLUE RGB Mode Use this parameter to set the strength of BLUE in White for a RGB Pattern Default Value Not determined by JVC yet FMP1 FM Prescaler when AVL is OFF STEREO ONLY Min Val...

Страница 11: ...n Value 000 Max Value 127 Recommended Value 013 Tuner Settings In the following table the parameters for tuner settings and the setting values of Thomson CTF 5510 are given Parameter Explanation Thomson CTF5510 F1H High byte of VHF1 VHF3 cross over frequency 0000 1001 F1L Low byte of VHF1 VHF3 cross over frequency 1001 0010 F2H High byte of VHF3 UHF cross over frequency 0001 1011 F2L Low byte of V...

Страница 12: ...V 3 is available in AV key stream 0 AV 3 is NOT available in AV key stream b1 1 AV 2 is available in AV key stream 0 AV 2 is NOT available in AV key stream b0 1 AV 1 is available in AV key stream 0 AV 1 is NOT available in AV key stream OP2 Reception Standard Options b7 1 3 button keyboard V P V 0 4 5 button keyboard V V P P Menu b6 1 L L is available 0 L L is not available b5 1 I is available 0 I...

Страница 13: ...White Insertion permits video IC to force a white picture during soft stop to discharge the tube at switching off It prevents white flaming while switching off the TV b3 1 Blue Background when no signal 0 Disable Blue Background b2 1 Semi transparent background for menu 0 Solid Menu background for menu b1 1 Black Stretch is ON 0 Black Stretch is OFF The Black Stretch function is used to increase t...

Страница 14: ...meaning for VST Tuner b1 NOT USED b0 1 Extra 200 msec blanking for VST 0 no extra blanking Extra 200 msec blanking is needed for VST tuners in order to prevent the color delaying problem in SECAM OP5 Channel Tables b7 1 Extra 150 msec blanking more for VST if OP4 b0 1 to SECAM color problem 0 no extra blanking b6 NOT USED b5 1 Force both channel on even no carrier carrier mute disable for STEREO m...

Страница 15: ...omatically selects the sound standard depending on the chassis code b2 1 0 Device type selection 000 EPROM M6 A 001 ROM H5 P 010 ROMLESS H5 P 011 EPROM M6 R 100 ROM M6 R 101 OSDEPROM M6 R OTP 110 ROM M6 P MASK P SERIES 111 Read Auto Gain Table for the device from EEPROM MASK O SERIES The default values of the option bytes are given in the following table EN Version EP Version EE Version OP1 0111 0...

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