JVC AV-21BF11EES Скачать руководство пользователя страница 20 | Manualshive

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No. 52055

AV-21BF11ENS

AV-21BF11EES

AV-21BF11EPS

AV-21BF11EJS

20

[MEMO]

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Содержание AV-21BF11EES

Страница 1: ...N LTD Jul 2002 AV 21BF11ENS AV 21BF11EES AV 21BF11EPS AV 21BF11EJS CONTENTS SPECIFICATIONS 2 SAFETY PRECAUTIONS 4 FEATURES 5 MAIN DIFFERENCE LIST 5 SPECIFIC SERVICE INSTRUCTIONS 6 SERVICE ADJUSTMENTS 11 PARTS LIST 21 OPERATING INSTRUCTIONS STANDARD CIRCUIT DIAGRAM 2 1 SERVICE MANUAL COLOUR TELEVISION ...

Страница 2: ...z 6 0MHz D K I 32 4MHz 6 5MHz L 40 4MHz 6 5MHz L Colour Sub Carrier Freq PAL 4 43MHz SECAM 4 43MHz NTSC 3 58MHz 4 43MHz Power Input AC 220V 240V 50Hz Power Consumption 85W Max 2 5W Standby Aerial Input Term 75Ωunbalanced Coaxial Picture Tube Size Visible size 51cm Measured diagonally High Voltage 27 7kV Speaker 5 7cm 16cm Oval type 2 Audio Output 6 5W 2 Video 1Vp p 75Ω S Video Y 1Vp p Positive C 0...

Страница 3: ...3 AUDIO L output 500mVrms Nominal Low impedance TV OUT 4 AUDIO GND 5 GND B 6 AUDIO L input 500mVrms Nominal High impedance 7 B input 700mVB W 75Ω NC 8 FUNCTION SW SLOW SW Low 0 3V High 8 12V High impedance 9 GND G 10 SCL3 NC NC 11 G input 700mVB W 75Ω NC 12 SDA3 NC NC 13 GND R 14 GND YS 15 R C input R 700mVB W 75Ω C 300mVP P 75Ω only R 16 Ys input Low 0 0 4 High 1 3V 75Ω NC 17 GND VIDEO output 18 ...

Страница 4: ...exact replacements or alternatives approved by the manufacturer of the complete product 7 Do not check high voltage by drawing an arc Use a high voltage meter or a high voltage probe with a VTVM Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 10kΩ 2W resistor to the anode button 8 When se...

Страница 5: ...9 It is possible to connect headphone 10 Direct channel access 11 APS Automatic Programming System 12 All programs can be named 13 Forward or backward automatic tuning 14 Sleep timer 15 Child Lock 16 Automatic sound mute when no transmission 17 5 minutes after the broadcasting closedown the TV switches itself automatically to stand by mode MAIN DIFFERENCE LIST Model Name Part Name AV 21BF11ENS AV ...

Страница 6: ...NE PWB Removing the rear cover Removing the rear MAIN PWB 1 Remove the 2 screws marked D 2 Remove the FRONT AV HEADPHONE PWB CHECKING THE PW BOARD To check the back side of the PW Board 1 Pull out the PW Board Refer to REMOVING THE MAIN PWB 2 Erect the PW Board vertically so that you can easily check the back side of the PW Board CAUTION When erecting the PW Board be careful so that there will be ...

Страница 7: ...No 52055 AV 21BF11ENS AV 21BF11EES AV 21BF11EPS AV 21BF11EJS 7 REAR COVER SPEAKER MAIN PWB FRONT CABINET FRONT AV HEADPHONE PWB 2 6 CRT A D 1 C Fig 1 1 B ...

Страница 8: ... 2 Shift with tweezers and remove the chip part Transistors diodes variable resistors etc 1 Apply extra solder to each lead 2 As shown in the figure push the part with tweezers and alternately melt the solder at each lead Shift and remove the chip part Note After removing the part remove remaining solder from the pattern 2 How to install Chip parts Resistors capacitors etc 1 Apply solder to the pa...

Страница 9: ...key and while the displayed MENU screen press 4 7 2 5 key on the remote control unit or press MUTING key and INFORMATION key at the same time 2 The SERVICE MENU screen of Fig 1 is displayed 3 Verify what to set in the SERVICE MENU and set whatever is necessary Fig 1 Refer to the SERVICE ADJUSTMENT for setting 4 Press the STANDARD key to exit SERVICE MENU 5 Receive channel setting Refer to the OPER...

Страница 10: ...t are automatically restored when APS bit in Service menu is set The procedure for setting APS bit is described bellow FINE TUNING PICTURE MODE AUTO STORE Refer to the INSTRUCTION BOOK SETTING APS BIT IN SERVICE MENU 1 Enter service menu in TV mode by pressing INFORMATION and MUTING keys simultaneously Service Menu will appear 2 Select TX1 TELETEXT OPTION by pressing Up Down keys on remote control...

Страница 11: ...s 5 Unless otherwise specified prepare the most suitable reception or input signal for adjustment 6 Never touch any adjustment parts which are not specified in the list for this adjustment variable resistors transformers condensers etc 7 Presetting before adjustment Unless otherwise specified in the adjustment instructions preset the following functions with the remote control unit BRIGHTNESS CONT...

Страница 12: ...MENU 2 Press the GREEN key geometry menu appears Fig 3 3 Press the FUNCTION key and select the ADJUSTMENT ITEM 4 Press the FUNCTION key and set the SETTING VALUE MENU SCREEN Fig 1 FUNCTION OF COLOUR key RED key It switches the AVL to ON or OFF mode on service menu AVL word is visible on service menu when AVL is on GREEN key It switches to GEOMETRY adjust menu Geometry of the picture is adjusted in...

Страница 13: ... 030 BG BIAS FOR GREEN 031 APR AUTOMATIC RGB PEAK REGULATION THRESHOLD 010 BRI BRIGHTNESS 030 CON CONTRAST 035 COL COLOUR 038 SHR SHARP 006 HUE HUE 031 VOL VOLUME 015 WR R WHITE POINT ADJUSTMENT for RED RGBmode 030 WG R WHITE POINT ADJUSTMENT for GREEN RGBmode 055 WB R WHITE POINT ADJUSTMENT for BLUE RGBmode 032 FMP1 FM PRESCALER WHEN AVL IS OFF 009 NIP1 NICAM PRESCALER WHEN AVL IS OFF 020 SCP1 SC...

Страница 14: ...0 TX1 TELETEXT OPTIONS 10010101 EN 10000101 EP 10001101 EE 10011101 EJ GEOM GEOMETRY OPTIONS 00000000 OP8 PIP PRESET CHANGE 00000000 ADJUSTMENT ITEM DESCRIPTION INITIAL VALUE VSIZ VERTICAL SIZE for 50Hz 030 VPOS VERTICAL POSITION for 50Hz 010 CSCO VERTICAL S CORRECTION for 50Hz Not used VCCO VERTICAL CORNER CORRECTION for 50Hz Not used HSIZ HORIZONTAL SIZE for 50Hz Not used HPOS HORIZONTAL POSITIO...

Страница 15: ...adjustment Remote control unit OSD 1 Enter SERVICE MENU 2 Select OSD with FUNCTION key 3 Adjust the OSD horizontal position with the FUNCTION key which shifts the reference bar on the bottom of the SERVICE MENU horizontally so that the OSD is positioned on the screen center X X IF ADJUSTMENT Item Measuring instrument Test point Adjustment part Description IF adjustment Remote control unit IF 1 IF ...

Страница 16: ...ment Signal generator Remote control unit VLIN 1 Receive a PAL B G circle pattern 2 Enter SERVICE MENU 3 Select VLIN Vertical linearity with the FUNCTION key 4 Adjust VLIN with the FUNCTION key until circle as round as possible 5 Press the MENU key and memorize the set value RGB MODE HORIZONTAL SHIFT OFFSET adjustment Signal generator Remote control unit RGBH 1 Input R G B circle pattern signal vi...

Страница 17: ...djustment 60Hz Signal generator Remote control unit VPOF 1 Receive a NTSC M circle pattern of vertical frequency 60Hz 2 Enter SERVICE MENU 3 Select VPOF Vertical position with the FUNCTION key 4 Adjust VPOFwith the FUNCTION key until the picturer is vertically centered C D 5 Check and readjust vertical position item if the adjustment becomes improper after some other geometric adjustments are done...

Страница 18: ...ic adjustments are done VERTICAL POSITION adjustment 50Hz Signal generator Remote control unit VPOS 1 Receive a PAL B G circle pattern signal of vertical frequency 50Hz 2 Enter GEOMETRY MENU 3 Select VPOS Vertical position with the FUNCTION key 4 Adjust VPOS with the FUNCTION key until the circle pattern is vertically centered A B 5 Check and readjust VPOS item if the adjustment becomes improper a...

Страница 19: ... with the key respectively 4 Adjust WR W G WB with the FUNCTION key respectively until the white part turns to pure white without any other color WHITE BALANCE adjustment High light Signal generator Remote control unit BR BG 1 Receive a black white signal colour off 2 Enter SERVICE MENU 3 Select BR BG with the FUNCTION key respectively 4 Adjust BR BG with the FUNCTION key respectively until the wh...

Страница 20: ...No 52055 AV 21BF11ENS AV 21BF11EES AV 21BF11EPS AV 21BF11EJS 20 MEMO ...

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