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SERVICE MANUAL (BSV-4251 BSV-4251A )

Converts analog pictures (including Composite, S-Video, Component (480i) or the like) to Y-UV
digital pictures. Compatible with various TV formats of NTSC, PAL, SECAM, etc.

U41 (VPC323OD)_#28_S-LLC1

U42 (LM2937-3.3V)_#3_V3.3

LC18 (STS104B)_#2_VAA3230

U40 (LM2937-3.3V)_#3_V3.3V-1

MODEL NAME

DOCUMENT NO

REVISION NO

REVISION DATE

PAGE

BSV-4251/4251A RD(1)

00

03/10/23

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Содержание BSV-4251

Страница 1: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE Service Manual BSV 4251 4251A RD 1 00 03 10 23 1 75...

Страница 2: ...DISPLAY CELL DEFECT SPECIFICATION 12 BLOCK WIRING DIAGRAM 14 MODULE FUNCTION DEFINITION 16 MODULE BASIC CONFIGURATION 17 VSC BOARD PIN CONFIGURATION 18 OSD MENU FACTORY 21 DESCRIPTION OF VSC FUNCTIONS...

Страница 3: ...G TROUBLESHOOTING 53 IMAGE STICKING CHARACTERISTICS 64 ISM MODE 66 SCHEMATIC PRINTED CIRCUIT BOARD EXPLODE VIEW 67 EXPLODED VIEW PARTS LIST 69 REPLACMENT PARTS LIST 71 EXPLODE VIEW 75 BSV 4251 4251A R...

Страница 4: ...P42V51000 51300 YBT 51330 new ASIC LGE 5 Speaker Impedance 8 6 Sound Output 10W 10W 7 Feature AV Input Bottom Component1 Input Bottom DVD Component2 Input Bottom DTV D SUB Bottom RGB 15 pin S Video In...

Страница 5: ...6 0 7 0 8 Vpp 2 COMPONENT Mode Y Cb Pb Cr Pr RESOLUTION H Freq KHz V Freq Hz Proposed 720 480 15 73 60 00 SDTV DVD 480I 720 576 15 63 50 00 SDTV DVD 576I 720 480 31 47 59 94 SDTV 480P 1280 720 45 00...

Страница 6: ...L NAME DOCUMENT NO REVISION NO REVISION DATE PAGE Pin No Pin Name Spec Pin No Pin Name Spec 1 DCD NC 6 DSR NC 2 RXD 12 Vpp 7 RTS NC 3 TXD 12 Vpp 8 CTS NC 4 DTR NC 9 R NC 5 GND GND CONTROL DESCRIPTIONS...

Страница 7: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 7 75...

Страница 8: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE OPTIONAL EXTRAS BSV 4251 4251A RD 1 00 03 10 23 8 75...

Страница 9: ...extras can be changed or modified for quality improvement without notification new optional extras can be added Contract your dealer for buying these items REMOTE CONTROL BUTTONS When using the remote...

Страница 10: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE TELETEXT FUNCTION BSV 4251 4251A RD 1 00 03 10 23 10 75...

Страница 11: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE DISPLAY CELL DEFECT SPECIFICATION BSV 4251 4251A RD 1 00 03 10 23 11 75...

Страница 12: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE PDP42V51000 51300 51330 DEFINITION OF CELL DEFECT ZONE BSV 4251 4251A RD 1 00 03 10 23 12 75...

Страница 13: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 1 Definition of Cell defect Zone 2 Display Dot Diagram BSV 4251 4251A RD 1 00 03 10 23 13 75...

Страница 14: ...2 GB 80 000MHz FSDQM 7 0 FSDATA 63 0 A 21 0 D 7 0 I O EXTENDER SST39VF080AT FLASH HY62U8200 RAM 24LC16 EEPROM VCC12 AP1501 50 VCC5A AP1501 50 VCC5D VCC9 RC1117 VCC3 12V 12V 12V 12V Y Pb Pr R G B H V 5...

Страница 15: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 15 75...

Страница 16: ...utside DC DC 2 Board Distribution to X Y Z board after conversion from input voltage of Vs Va Voc to circuit logic voltage 5V FPC Flexible Plate Circuit The pattern connection of PCB and panel COF Chi...

Страница 17: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE MODULE BASIC CONFIGURATION PDP42V51000 51300 51330 BSV 4251 4251A RD 1 00 03 10 23 17 75...

Страница 18: ...power breakdown 3 5V STBY I 5V 5V INPUT PORT FOR VSC STANDBY 2 RL ON O 5V 0V RELAY CONTROL PORT FOR POWER ON Relay On High Relay off Low 6 5V MNT I 5V 0V PDP MODULE STABLE CHECK PORT The port to provi...

Страница 19: ...V 1 VCC5 I 5V 5V Input 2 VCC5 I 5V 5V Input 3 SCART_R I 0 7Vpp 0 1pp SCART RED INPUT PORT 4 SCART_G I 0 7Vpp 0 1pp SCART GREEN INPUT PORT 5 SCART_B I 0 7Vpp 0 1pp SCART BLUE INPUT PORT 6 SCART_FB I 1V...

Страница 20: ...3dB SCART2 AUDIO RIGHT OUTPUT PORT 7 GND 0V 8 AFT I 9 GND 0V 10 TUNER_SIF I 11 GND 0V 12 TUNER_CVBS I 1 0Vpp 3dB TV VIDEO INPUT PORT 13 GND 0V 14 SDA3 I 5V 0V DATA LINE 15 SCL3 I 5V 0V CLOCK LINE 16 G...

Страница 21: ...scaler input port CH1 or CH2 5 VPC3230 MAIN Value adjustment for video decoder s brightness and contrast color tickness in the main window 6 VPC3230 SUB Value adjustment for video decoder s brightness...

Страница 22: ...E PAGE CALIBRATION MENU 1 PC Calibration Automatic adjustment as the fittest status of white balance for analogue input PC 2 DTV Calibration Automatic adjustment as the fittest status of white balance...

Страница 23: ...uality improv ement fuction when TV input signal is weak Blue Screen When there are no input signal of the TV and external equipment you can install the screen color as blue Melody Volume Installation...

Страница 24: ...justment of current screen Adjustment value of brightness for User Menu TTX Bright It is not useful mode Sub Contrast Contrast adjustment of scaler generating power Red Green Blue Gain Contrast adjust...

Страница 25: ...tment of each Red Green Blue for scaler input port CH1 OR CH2 Red Green Blue Offset The brightness adjustment of each Red Green Blue for scaler input port CH1 OR CH2 APL Pixel Shift Pixel Number Time...

Страница 26: ...sense adjustment of Composite S Video form s signal SATCb The blue color sense adjustment of Component RGB form s signal SATCr The red color sense adjustment of Component RGB form s signal CIPTNT The...

Страница 27: ...color sense adjustment of Composite S Video form s signal SATCb The blue color sense adjustment of Component RGB form s signal SATCr The red color sense adjustment of Component RGB form s signal CIPT...

Страница 28: ...ntrol dc offset Brightness of each respective channel Current Installation of PLL Part VCO Current For test VCO Installation of PLL Part VCO Range For test Pr Y Pb Gain Contrast adjustment of Componen...

Страница 29: ...pattern as a certain time interval 2 Luma Ramp 16 Step It is gray pattern of 16 Step 3 Luma Ramp 128 Step It is gray pattern of 128 Step 4 White 16 It is low Gray pattern 5 White 240 It is high gray...

Страница 30: ...VISION DATE PAGE VERSION MENU Version It is to show the Firmware Version Release It is to show the date of Firmware revision Panel Used Time It is to show the used time of Panel Panel Name It is to sh...

Страница 31: ...tion of initial language of the TTX 2 Video Video format per country and it is composed of Normal NTSC PAL N M 3 Protocol Installation of communication protocol for remote control 4 LOGO Installation...

Страница 32: ...within the outer perimeter of the screen without expanding the central area PIP Picture In Picture Function to enable the simultaneous viewing of two pictures by displaying a small sub frame within t...

Страница 33: ...ound levels from each individual broadcasting company to an appropriate volume in case of watching a television connected to external equipment This allows to viewer to enjoy a comfortable and stable...

Страница 34: ...t 480i or the like to Y UV digital pictures Compatible with various TV formats of NTSC PAL SECAM etc U41 VPC323OD _ 28_S LLC1 U42 LM2937 3 3V _ 3_V3 3 LC18 STS104B _ 2_VAA3230 U40 LM2937 3 3V _ 3_V3 3...

Страница 35: ...V 4251A LC16 STS104B _ 2_VAA3230_1 U41 VPC3230D _ 28_VID_CLK U41 VPC3230D _ 53_INTLC U41 VPC3230D _ 57_VID VS U41 VPC3230D _ 56_VID HS MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 42...

Страница 36: ...an analog RGB signal to a process able digital signal Converts a component signal 480p 720p 1080i to a digital signal and transmits it to PW565 Scaler U2 AD9883 _ 30_ Hsync0 U2 AD9883 _ 31_Vsync0 U2 A...

Страница 37: ...SERVICE MANUAL BSV 4251 BSV 4251A U1 LM2937 _ 3_ VO PW565 Scaler MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 37 75...

Страница 38: ...51 adjusted to a PDP display and transmitted to a PDP module In particular it receives any PC signal input at various scanning rates and performs scaling to adjust to PDP resolution RP12 R ARRAY _ 1_D...

Страница 39: ...gnal out of many audio input signal options and produces a woofer signal or Headphone signal as well as a general Speaker signal LCD TV U45 MSP3450 _ 65_AVSUP U43 KIA7808AF _ 3_8V Output U45 MSP3450 _...

Страница 40: ...STS104B _ 2_C344_5VST LC21 STS104B _ 2_C353_5VDD U15 RC1117_3 3V _ 2_VCC3 L10 33uH _ 2_R410_VCC12 Q33 MMBT3904 _ C _RL_ON Q30 MMBT3904 _ C _VAVS_ON MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAG...

Страница 41: ...ATE PAGE MODULE SUPPLY VOLTAGE SEQUENCE PDP42V5 Life Expectancy The anticipated life time is estimated more than 25 000 hours of continuous operations Average life time is the time when the brightness...

Страница 42: ...r Relay On 2 Continue 5Volt Monitoring If there is no 5Volt more than 10 minutes then power Off 3 Check if it is OK the 5Volt Mnt first And then VaVs On after 3 seconds 4 VaVs On waiting 3 seconds Dis...

Страница 43: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE PSU POWER SEQUENCE POWER DGK 420W BSV 4251 4251A RD 1 00 03 10 23 43 75...

Страница 44: ...Voltage of D M M adjustment as same as Va voltage which on Label of panel right bottom Deviation 0 5V 1 1 2 Vs Adjustment Connect pin 1 3 of CN806 to jack of D M M After turning the VR3 Vs Adj voltag...

Страница 45: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 45 75...

Страница 46: ...movement to 2 color control on Factory Mode2 move to sub menu as choice of volume button 3 After check the Brightness 50 Contrast 90 choose the Sub Brightn ess 4 Zero calibration s execution of CA 100...

Страница 47: ...tern of above picture Timing 395 Pattem 251 Reverse 720P 60Hz 2 After movement to 1 calibration on Factory Mode move to sub menu as choice of volume button 3 After movement to 2 DTV Calibration choose...

Страница 48: ...fter movement to 1 calibration on Factory Mode move to sub menu as choice of volume button 3 After movement to 2 PC Calibration choose it with volume button 4 If Enter key it starts the calibration au...

Страница 49: ...the product immediately turn off the power Continuing to use the product it is may cause fire or electric shock 4 If the product emits smoke and abnormal smell or makes an abnormal sound immediately...

Страница 50: ...e power and disconnect all the cables While moving the product watch your step The product may be dropped or all leading to injuries of electric shock 10 In order to protect static electricity due to...

Страница 51: ...product with a cloth or other covering while power is supplied to the product 23 Before turning on power to the product check the wiring of the product and confirm that the supply voltage is within t...

Страница 52: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 52 75...

Страница 53: ...Display X B D C A screen doesn if display at all and c 1 Check whether the CTRL B D LED D1 D4 is turned on or not 3 X B D Y B D Z B D is well plugged in 4 Check the connection of X B D Y B D and Z B...

Страница 54: ...n is not be shown as data COF ing Example of the screen display form Anything of the 7 Data COF can be shown beside below pictures The problem between Data COF and X B D is more possible th 2 Confirm...

Страница 55: ...check a COF connector D 3 I connected from CTRL to X B D D or CTRL B D Screen Display Form 1 In case of generating unusual pattern of Data COF IC unit as belo that is input into Data COF IC 2 In case...

Страница 56: ...f one Data COF IC there is problem at the output of outputflatworm of X B D 2 C 3 R elationship between screen and X B D In case of generating regular stripe about the quantity of two Data COF IC that...

Страница 57: ...Right Bottom reen 3 7 Lef D of the Sc t X B Screen Display Form 2 5 The screen display has a problem for Scan FFC 1 It s may be a problem between Scan FFC and Y B D 2 Check the connection of Y B D an...

Страница 58: ...N DATE PAGE 6 The screen has a vertical line with regular gap A vertical stripe flash at especial color 2 1 This is a problem about control B D 2 Replace Control B D Screen Display Form 2 7 A data cop...

Страница 59: ...een has one or several vertical line X B D COF FPC attached panel COF attached panel 3 R 1 In this case It isn t a problem about controller B D or 2 It may cause followings It s out of order a panel O...

Страница 60: ...h below F G s s declination by changing VR1 VR2 VR3 k 1 In this case Z B D operation isn t complete 3 Check the connector of Z B D and Controller 4 Replace the Controller B D or Z B 2 1 The screen dis...

Страница 61: ...VISION NO REVISION DATE PAGE 3 Replace the Z B D 13 It doesn t display a specified brightness at specified color 2 Replace the CTRL B D 1 No Power 2 1 Check the connector of CTRL B D input signal 3 No...

Страница 62: ...connective condition and various connect or Connect plug with the set Check OPEN With CN806 CN13 C IC1 rt heck the Vs Voltage 5 IC16 PSU Pa and VSC Part Q30 Short Check AC Line Fuse Replace IC15 IC16...

Страница 63: ...nn Input PC DTV Signal Input DV D Signal Input Tuner CVB S CVBS F H SCART S Video Signal Input F SCART RGB Signal Check BA7657 U8 Check AD9883 U2 Check Cable Abnormal Normal Normal Check MSP3450G U45...

Страница 64: ...seen with the naked eyes ecular change average Conditions All white 100 white input at an ambient temperature of 25 However this lifetime is n the data for refernce arrenty 4 Cause of deterioration in...

Страница 65: ...ted n colored ground mixture of R G B recommended ISM Mode Image Sticking Minimization Mode Apart from the above proposal This module has been equipped with a special method that minimizes the image s...

Страница 66: ...ts initial value at the white window pattern 1 25 of full white pattern change of APL Data is no less than 4 and it will remain for more than 5 less of time it will not operate where the display load...

Страница 67: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE PSU DGK 420W BOTTOM BSV 4251 4251A RD 1 00 03 10 23 67 75...

Страница 68: ...SERVICE MANUAL BSV 4251 BSV 4251A MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE EXPLODED VIEW PARTS LIST No Part no Description BSV 4251 4251A RD 1 00 03 10 23 68 75...

Страница 69: ...EY 1 S150111021 PACKING ASSY EPT 4200A PAL 2 S15012F021 ACCESSORY ASSY EPT 4200A PAL 3 S15013C021 REMOCON ASSY EPT 4200A PAL 3 71BELP324 JACK HOUSING AL PAL TV 3 71BELP315 HEAT SHINK AL 28X28X13 4 71B...

Страница 70: ...WASHER 8 2 74GELM008 GRAOUND SCREW PH M 4X10 SPECIAL 3 76AZW15D42D15 WASHER SPCC 15X4 2X1 5T ZW 2 50 0007 WIRE ASSY AUDIO OUT 4P EPM 420 2 50 0074 WIRE ASSY AUDIO POWER 4P 250mm 2 50 0075 WIRE ASSY A...

Страница 71: ...230D C5 PQFP 80 4 01 0259 IC FDC6561AN Super SOT 6 4 01 0260 IC MSP3450G PQFT 80 4 01 0261 IC SST39VF080AT TSOP40 4 01 0262 IC SDA5550 M 3901 A14 9RF 4 01 0263 IC HY62U8200BLLST 85I sTSOP 4 01 0264 IC...

Страница 72: ...1608 TP 4 10 0189 CC CHIP 25V 105Z 1608 TP 4 10 0197 CC CHIP 25V 682J 1608 TP 5 10 0004 CC CHIP 25V 101J 1608 TP 5 10 0016 CC CHIP 16V 224Z 1608 TP 5 10 0021 CC CHIP 25V 102K 1608 TP 10 0022 CC CHIP...

Страница 73: ...IAL 2 17 0011 CORE ZCAT 1518 0730 M K 4 17 0003 BEAD HB 1M2012 221JT 4 17 0004 BEAD HH 1M3216 121JT 4 17 0016 BEAD HB 1M2012 121JT 4 17 0023 BEAD HCB 4516K 600T60 4 17 0023 BEAD HCB 4516K 600T60 5 17...

Страница 74: ...14 0476 R CHIP 1608 474F TP 4 14 0008 R CHIP 1608 101F TP 4 14 0010 R CHIP 1608 102F TP 4 14 0012 R CHIP 1608 103F TP 4 14 0052 R CHIP 1608 472F TP 4 14 0055 R CHIP 1608 473J TP 4 14 0069 R CHIP 1608...

Страница 75: ...SERVICE MANUAL BSV 4251 BSV 4251A EXPLODE VIEW MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE BSV 4251 4251A RD 1 00 03 10 23 75 75...

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