JVC AV-25BT6ENB Скачать руководство пользователя страница 5 | Manualshive

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No.52056

No.52056

3

AV-25BT6ENS
AV-25BT6ENB

AV-25BT6ENS
AV-25BT6ENB

2-3

2-4

BLOCK DIAGRAM

CRT

PLL/VST TUNER

UV1315/16

VIDEO

PROCESSOR

STV2248C

+150 B+

CONTROLLER

ST92195

I

2

C

SE RVICE

CONNECTOR

EEPROM

KEYPAD

IR

SENSOR

STEREO SOUND

MSP34X0D/G

VIRTUAL DOLBY

QSS

HP AMP

TDA1308

AUDIO AM P

TDA7269A

L

R

SM PS

MC44608

+14V

- 14V

+8V

+5V

VIDEO

SWITCHING

CIRCUITS

IF

SCART1

SCART2

SVHS FAV/BAV

HOR DRIVE

BU2508

VER AMP

STV9306

RGB AMP

TDA610 8

FBT

VER. DEFL.

HOR. DEFL.

L

R

MONO

+5V STBY

SUB AMP

TDA7261

SUBW

MSP 3411G

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Содержание AV-25BT6ENB

Страница 1: ...AN LTD Jul 2002 AV25BT6ENS AV25BT6ENB CONTENTS SPECIFICATIONS 2 SAFETY PRECAUTIONS 4 FEATURES 5 MAIN DIFFERENCE LIST 5 SPECIFIC SERVICE INSTRUCTIONS 6 SERVICE ADJUSTMENTS 10 PARTS LIST 21 OPERATING INSTRUCTIONS STANDARD CIRCUIT DIAGRAM 2 1 SERVICE MANUAL COLOUR TELEVISION ...

Страница 2: ...respectively 4 Adjust WR WG 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 white part of scr...

Страница 3: ...t be taken for the following points 1 Do not touch the LIVE side GND or the LIVE side GND and the ISOLATED NEUTRAL side GND simultaneously If the above caution is not respected an electric shock may be caused Therefore make sure that the power cord is surely removed from the receptacle when for example the chassis is pulled out 2 Do not short between the LIVE side GND and ISOLATED NEUTRAL side GND...

Страница 4: ...T CONTROL PWB CIRCUIT DIAGRAM CRT SOCKET PWB CIRCUIT DIAGRAM SEMICONDUCTOR SHAPES TRANSISTOR BOTTOM VIEW FRONT VIEW TOP VIEW CHIP TR IC BOTTOM VIEW FRONT VIEW TOP VIEW CHIP IC TOP VIEW 1 N N 1 OUT E IN IN OUT E 1 N N 1 N N N 1 N E C B E C B C B E B C E G D S E C B E C B 2 21 2 23 2 23 MAIN PWB PATTERN HEADPHONE PWB PATTERN CRT SOCKET PWB PATTERN 2 24 FRONT CONTROL PWB PATTERN HEADPHONE PWB PATTERN...

Страница 5: ...B CONTROLLER ST92195 I2 C SERVICE CONNECTOR EEPROM KEYPAD IR SENSOR STEREO SOUND MSP34X0D G VIRTUAL DOLBY QSS HP AMP TDA1308 AUDIO AMP TDA7269A L R SMPS MC44608 14V 14V 8V 5V VIDEO SWITCHING CIRCUITS IF SCART1 SCART2 SVHS FAV BAV HOR DRIVE BU2508 VER AMP STV9306 RGB AMP TDA6108 FBT VER DEFL HOR DEFL L R MONO 5V STBY SUB AMP TDA7261 SUBW MSP 3411G ...

Страница 6: ... 9V 1 6V 1 4V 0V 1 6V 4 9V 3 9V 1 9V 1 8V 4 9V 1 4V 1 4V 0 2V 4 9V 0V 0V 0V 0V 0V 0V 1 6V 1 8V 4 9V 0 9V 4 5V 0V 1 6V 1 6V 0V 1 5V 0V 0V 4 9V 0 2V 0 2V 0V 4 9V 3 6V 0 1V 1 6V 0 2V 1 6V 1 6V 4 5V 4 9V 4 9V 0V 4 6V 0V 4 9V 4 9V 4 2V 2 8V 0 1V 2 5V 5 5V 0V 3 9V 3 5V 4 9V 4 9V 0V 23 3V 0V 0V IC501 40 IC501 41 6 5 MAIN PWB 1 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 7: ... 12 1V 7 8V 2 2V 2 8V 2 4V 2 4V 2 3V 3V 2 5V 2 4V 2 4V 2 2V 1 9V 0V 3 8V 1 1V 3V 0V 4 8V 4V 3 9V 4V 0 9V 0 8V 5 5V 5 7V 4 4V 2 9V 2 3V 3 8V 3 8V 7 9V 3 5V 0 1V 3 1V 2 5V 3 1V 7 9V 4V 0V 3 9V 2 3V 4 1V 0V 4 1V 1 6V 3 8V 2 4V 1 7V 2 4V 0V 0 1V 4 3V 2 5V 2 5V 2 5V 4 3V IC403 32 IC403 31 IC403 30 3 5 4 4 IC403 48 IC403 47 2 6 MAIN PWB 2 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 8: ...52056 No 52056 6 AV 25BT6ENS AV 25BT6ENB AV 25BT6ENS AV 25BT6ENB 2 9 2 10 MAIN PWB CIRCUIT DIAGRAM 3 6 4 9V 4V 4 8V 7 9V 3 3V 2 2V 7 9V 0 1V 0V 7 9V 0 1V 0V MAIN PWB 3 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 9: ... 4V 3 9V 3 3V 5 5V 26 3V 1 4V 0V 12 6V 26 9V 1 2V 12 6V 3 1V 12 6V 4 3V 0V 5 5V 5 5V 193V 0V 0V 0V 11 8V 14 7V 0 1V 0V 0V 5 8V 3 6V 13 6V 7 4V 6 8V IC601 2 3 IC601 5 30 IC601 6 2 IC601 7 60 Q601 B 2 TR601 4 300 TR601 5 250 TR601 6 120 TR601 8 25 TR601 9 65 1300 0 1V MAIN PWB 4 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 10: ...T6ENB AV 25BT6ENS AV 25BT6ENB 2 13 2 14 MAIN PWB CIRCUIT DIAGRAM 5 6 1 1V 0 1V 4 9V 107 5V 12 5V 2 5V 281V 2 5V 0V 12 5V 4 9V 12 2V 11 1V 0V 0 6V 0V 0 1V 2 3V 12 2V 4 9V 9 4V 4 9V 12 2V 7 9V MAIN PWB 5 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 11: ... 3 7V 2 5V 3 7V 0V 4 9V 1 4V 1 4V 1 4V 0V 2 4V 2 4V 4V 3 2V 0 1V 4 9V 0V 0V 0V 1 6V 1 6V 1 7V 2 3V 1 5V 3 7V 3 7V 0V 3 7V 3 7V 0V 3 7V 3 7V 0V 0 1V 0 1V 0 1V 0V 4 9V 3 7V 3 7V 0V 3 7V 3 7V 6 1V 7 9V 6 8V 0V 3 6V 0 1V 0 1V 0 1V 0 1V 0 1V 0V 2V 2V 4 8V 0V 4 9V 4 8V 4 2V MAIN PWB 6 6 VE 20101572 AV 25BT6ENS AV 25BT6ENB ...

Страница 12: ...25BT6ENB CRT SOCKET PWB CIRCUIT DIAGRAM 2 17 2 18 CRT SOCKET PL902 3 8V 0V 2 5V 2 5V 2 5V 0V 4 8V 201V 132V 145V 133V 0 9V 195V IC900 7 IC900 8 IC900 9 150 140 160 CRT SOCKET PWB AV 28BT8ENS AV 28BT8ENB AV 28BT8EPS AV 28BT8EPB AV 28BT8EES AV 28BT8EEB VE 20094670 ...

Страница 13: ...V 25BT6ENS AV 25BT6ENB AV 25BT6ENS AV 25BT6ENB FRONT CONTROL PWB CIRCUIT DIAGRAM HEADPHONE PWB CIRCUIT DIAGRAM 2 19 2 20 HEADPHONE PWB AV 25BT6ENS AV 25BT6ENB VE 20079493 FRONT CONTROL PWB AV 25BT6ENS AV 25BT6ENB VE 20083646 ...

Страница 14: ...No 52056 No 52056 12 AV 25BT6ENS AV 25BT6ENB AV 25BT6ENS AV 25BT6ENB PATTERN DIAGRAMS MAIN PWB PATTERN 2 21 2 22 FRONT ...

Страница 15: ...er Frequency PAL 4 43MHz SECAM 4 43MHz NTSC 3 58MHz 4 43MHz Aerial Input Terminal 75Ohm Unbalanced Power Input AC 220V 240V 50Hz Power Consumption 135W Max 1 8W stand by Picture Tube Visible size 59cm Measured diagonally High Voltage 30 45kV Speaker 5 7 X 16 cm Oval type X 2 Audio Output 10W 10W Video 1Vp p 75 Ohm S Video Y 1Vp p Positive C 0 286Vp p Input Audio L R 500 mVrms High Impedance Video ...

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

Страница 17: ...ents 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 service is requi...

Страница 18: ...text Fastext Toptext 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 Automatic sound mute when no transmission 15 5 minutes after the broadcasting closedown the TV switches itself automatically to stand by mode 16 Child Lock MAIN DIFFERENCE LIST MODEL No Parts Name AV 25BT6ENS...

Страница 19: ...ve the 1 screw marked C 2 Remove the HEADPHONE PWB ASS Y BRACKET REMOVING THE SPEAKER After removing the rear cover 1 Remove the 4 screws marked D 2 Remove the SPEAKER REMOVING THE FRONT CONTROL PWB After removing the rear cover Remove the MAIN PW B ASS Y 1 Remove the 4 screws marked E and remove the FRONT CONTROL PWB REMOVING THE POWER SW After removing the rear cover Remove the MAIN PW B ASS Y R...

Страница 20: ...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 pattern as indic...

Страница 21: ...he displayed MENU screen press 4 7 2 5 key on the remote control unit or press MUTING key and INFORMATION key at the simultaneously 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 OPERATING INST...

Страница 22: ...cally 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 unit 3 Press ...

Страница 23: ...n 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 CONTRAST COLOUR SHARPNESS CENTER ADJUSTMENT EQUIPMENT 1 DC voltmeter ...

Страница 24: ...he 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 this menu YEL...

Страница 25: ...EAK 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 Not used NIP1 NICAM PRESCALER WHEN AVL IS OFF Not used SCP1 SCART PRESCALER WHEN AVL IS OFF Not us...

Страница 26: ...METRY 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 POSITION for 50Hz 035 HPIN HORIZONTAL PINCUSHION for 50Hz Not used HCCO HORIZONTAL COR...

Страница 27: ...r 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 2 IF 3 IF 4 1 Receive a PAL colour bar pa...

Страница 28: ...he remote control unit force the TV to RGB mode 3 Enter SERVICE MENU 4 Select RGBH with the FUNCTION key 5 Adjust RGBH with the FUNCTION key until the circle pattern is horizontally centered A B 6 Check and readjust RGBH item if the adjustment becomes improper after some other geometric adjustments are done VERTICAL SIZE OFFSET adjustment 60Hz Signal generator Remote control unit VSOF 1 Receive a ...

Страница 29: ...le pattern signal of vertical frequency 60Hz 2 Enter SERVICE MENU 3 Select HPOF with the FUNCTION key 4 Adjust HPOF with the FUNCTION key until the circle pattern is horizontally centered E F 5 Check and readjust a horizontal position item if the adjustment becomes improper after some other geometric adjustments are done HORIZONTAL TRAPEZOID OFFSET adjustment 60Hz Signal generator Remote control u...

Страница 30: ...rator 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 after some other geometric adjustments are done VERTICAL S CORREC TION...

Страница 31: ...te control unit HSIZ 1 Receive a PAL B G cross hatch pattern signal of vertical frequency 50Hz 2 Enter GEOMETRY MENU 3 Select HISZ Horizontal size with the FUNCTION key 4 Adjust HISZ with the FUNCTION key until the vertical black lines on both the left and right part of the cross hatch pattern become very close to the left and right horizontal sides of picture tube and nearly about to disappear HO...

Страница 32: ...ross hatch pattern signal of vertical frequency 50Hz 2 Enter GEOMETRY MENU 3 Select HCCO Horizontal corner correction with the FUNCTION key 4 Adjust HCCO with the FUNCTION key until the bending of the vertical line of the cross hatch pattern are corrected 5 Check and readjust HCCO item if the adjustment becomes improper after some other geometric adjustments are done HORIZONTAL TRAPEZOID adjustmen...

Страница 33: ...W BOARD ASS Y 24 CRT SOCKETPW BOARD ASS Y 28 FRONT CONTROL PW BOARD ASS Y 28 HEADPHONE PW BOARD ASS Y 28 PACKING PACKING PARTS LIST 29 USING PW BOARD REMOTE CONTROL UNIT Model PWB ASS Y AV 25BT6ENS AV 25BT6ENB MAIN PWB VE 20101572 CRT SOCKET PWB VE 20094670 FRONT CONTROL PWB VE 20084570 HEADPHONE PWB VE 20079493 REMOTE CONTROL UNIT VE 30017763 RM C1100 AV 25BT6ENS AV 25BT6ENB ...

Страница 34: ... 5 VE 40000127 SWITCH ON OFF 2 5A 100A 6 VE 20043545 BUTTON FUNCTION SILVER AV 25BT6ENS 6 VE 20003730 BUTTON FUNCTION BLACK AV 25BT6ENB 7 VE 35004456 BRAC HP STR 6382 8 VE 30001946 SPEAKER 8R 15W 57X160 X2 9 VE 30015614 PFC TRF 10 VE 20086831 SHASSI BASE 11 VE 20094516 CHASSIS FRAME 12 VE 20092523 REAR COVER AV 25BT6ENS 12 VE 20101575 REAR COVER AV 25BT6ENB 13 VE 20067720 AV TARMINAL BOARD 14 VE 2...

Страница 35: ...No 52056 AV 25BT6ENS AV 25BT6ENB 23 EXPLODED VIEW MAIN PWB FRONT CONTROL PWB 12 8 V01 L01 8 1 2 4 5 6 15 11 10 13 HEADPHONE PWB 9 TR601 14 3 7 16 17 ...

Страница 36: ... 30012714 SMD RES 1 16W 820R J R447 VE 30012714 SMD RES 1 16W 820R J R448 VE 30012683 SMD RES 1 16W 330K J R449 VE 30012659 SMD RES 1 16W 2 2K J Symbol No Part No Part Name Description RESISTOR R450 VE 30012702 SMD RES 1 16W 560R J R458 VE 30012510 SMD RES 1 16W 100R J R459 VE 30012668 SMD RES 1 16W 220R J R460 VE 30012668 SMD RES 1 16W 220R J R461 VE 30012668 SMD RES 1 16W 220R J R462 VE 30012510...

Страница 37: ...M C162 VE 30012573 SMD CAP 47PF 50V J Symbol No Part No Part Name Description CAPACITOR C164 VE 30012692 SMD RES 1 16W 4 7K J C165 VE 30000413 EL CAP 4 7UF 50V M C201 VE 30000400 EL CAP 47UF 50V M C205 VE 30000345 EL CAP 10UF 50V M C206 VE 30012610 SMD CAP 10NF 50V J C207 VE 30012610 SMD CAP 10NF 50V J C230 VE 30016654 SMD CAP 100NF 16V K R C246 VE 30000295 CER CAP 100NF 50V Z F C303 VE 30000100 M...

Страница 38: ...EL CAP 33UF 50V M C811 VE 30000161 MKP CAP 47NF 630V J C812 VE 30007708 CER CAP 1NF 1KV K PULSE C816 VE 30000440 CER CAP 2 2NF 4KV M C817 VE 30000198 CER CAP 120PF 500V J SL C818 VE 30012590 SMD CAP 47NF 50V K C819 VE 30012590 SMD CAP 47NF 50V K C822 VE 30007308 CER CAP 220PF 1KV K PULSE C826 VE 30000406 EL CAP 47UF 250V M HR C827 VE 30000411 EL CAP 4700UF 16V M C828 VE 30012590 SMD CAP 47NF 50V K...

Страница 39: ... VE 30001285 DIODE D897 VE 30001329 DIODE TRANSISTOR Q104 VE 30001457 TR Q106 VE 30001457 TR Q141 VE 30001457 TR Q142 VE 30001457 TR Q307 VE 30001457 TR Q316 VE 30001458 TR Q403 VE 30001457 TR Q404 VE 30001457 TR Q503 VE 30001457 TR Q504 VE 30001458 TR Q600 VE 30001435 TR Q601 VE 30001441 TR Q602 VE 30001429 TR Q603 VE 30001458 TR Q604 VE 30001457 TR Q605 VE 30001458 TR Q700 VE 30001458 TR Q801 VE...

Страница 40: ...COIL DIODE D901 VE 30001329 DIODE D902 VE 30001318 DIODE D903 VE 30001329 DIODE D904 VE 30001329 DIODE D905 VE 30001284 DIODE D906 VE 30001284 DIODE D907 VE 30001284 DIODE D908 VE 30001284 DIODE D909 VE 30001344 ZENER DIODE NOT1 VE 30001329 DIODE 1A 1000V 30A TRANSISTOR Q900 VE 30001427 TR Q901 VE 30001454 TR IC IC900 VE 30008721 IC OTHERS PL902 VE 30001855 CRT SOCKET SG901 VE 30000428 SPARK GAP 3...

Страница 41: ... 1 VE 50028494 CARTON BOX AV 25BT6ENS 1 VE 50028507 CARTON BOX AV 25BT6ENB 2 VE 20004294 CUSHION ASS Y 3 VE 50026637 POLY BAG 1250 1000 4 VE 70000587 POLY BAG 5 VE 30017763 REMOTE CONTROL UNIT RM C1100 6 VE 50028493 INST BOOK 7 BT 54013 2TK WARRANTY CARD 8 VE 20102134 LABEL AV 25BT6ENS 8 VE 20102164 LABEL AV 25BT6ENB ...

Страница 42: ...No 52056 AV 25BT6ENS AV 25BT6ENB 30 Memo ...

Страница 43: ...No 52056 AV 25BT6ENS AV 25BT6ENB 31 Memo ...

Страница 44: ...4 VP 0207 DP208051 VICTOR COMPANY OF J APAN LIMITED HOME AV NETWORK BUSINESS UNIT 12 3 chome Moriya cho Kanagawa ku Yokohama Kanagawa prefecture 221 8528 Japan ...

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