Belson BSV-4251 Service Manual
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Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION 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 copy is happened into vertical direction BSV-4251/4251A RD(1) 00 03/10/23 58/75
SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 4 04-0128 DIODE KDZ8.2EV-RTK 5 04-0127 DIODE 1SR154-400 4 04-0128 DIODE KDZ8.2EV-RTK 3 04-0038 DIODE 1N4004 TP 7 04-0033 LED SAM3270 4 04-0053 LED SR2333-H SOT-23 CAPACITOR 4 10-0009 CC CHIP 25V 330J 1608 TP 4 10-0016 CC CHIP 16V 224Z 1608 TP 4 10-0017 CC CHIP 1
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE HEATRUN MENU „ 1. Auto Run : It is the mode to change the heatrun 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 pattern. „ 6. Color Bar : It is color Bar Pattern.
SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 4 71AELP125 BRKT PW EGI 1T 4 73DELi032 INSULATION SW PC 0.5tX70X53 4 AJ-00003 SNAP RIVET DASR 470 3 74B2BN3008FB T/SCREW BH T 3X8 2S ZB 2 74B2BN3005FW T/SCREW BH T 3X5 2S ZW 2 74B2BN3008FB T/SCREW BH T 3X8 2S ZB 4 74B2PN4010FW T/SCREW PH T 4X10
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE (1) Signal Generator supply the pattern of above picture. Timing ¢¡ 313, Pattem ¢¡ 609 (1024 x 768, 60Hz) (2) After 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 automatically How to exit the Factory Mode INFO ¢¡ LAST ¢¡ ERASE ¢¡ ENTER Key 5) Adjustment verificat
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE PW565 MENU „ Red,Green,Blue Gain : The contrast value adjustment 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 „ Virtual Framelock : Installation of flame frequency for panel (50Hz, 60Hz). „ Alpha „ Beta „ Degree VPC3230-MAIN MENU BSV-4251/4251A RD(1)
SERVICE MANUAL (BSV-4251 BSV-4251A ) (MODULE USE AND CONSIDERATIONS IN SERVICING) TROUBLESHOOTING.…….…………………………..…………. 53 IMAGE STICKING CHARACTERISTICS ……………………… 64 ISM MODE………………………………………………………….. 66 SCHEMATIC &PRINTED CIRCUIT BOARD &EXPLODE VIEW ……�
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 2-4. Regular Stripe is Generated about the Quantity of one Data COF IC or more (1) In case of generating regular stripe about the quantity of 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 means the data which is conveyed from CTRL B/D doesn’t conveyed well. onfirm the XB/D connection connector plugged in well. Correspond to unusual screen. eplace relevant XB/D or CTRL B/D. R BSV-4251/
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE ¡Ø Screen Display Form 2-2. The screen doesn’t be shown as Data COF (Include not be shown part of Data COF quantity or a part) (1 at the screen 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 the connector of Data COF is well connected to X B/D. Correspond to the part that screen is not show (3) Confirm whether the Data COF is failed and replace X B/D ※ How to examine Data COF IC �
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 1) AV / COMPONENT Output ITEM MIN TYP MAX UNIT AV Video Input Level 0.85 1.00 1.15 Vpp AV Sync Input Level 0.24 0.29 0.32 Vpp AV Burst Input Level 0.14 0.28 0.35 Vpp AV Video Input Level 0.47 0.63 0.79 V AV Audio Input L/R 0.47 0.63 0.79 V Component Video Input Level (Y,Cb/Pb,Cr/Pr) 0.6 0.7 0.8 Vpp Analog RGB, H/V Input Level 0.6 0.7 0.8 Vpp 2) COMPONENT Mode (Y,Cb/Pb,Cr/Pr) RESOLUTION H-Freq(KHz) V-Freq(H
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE TROUBLE SHOOTING 1. hecking for no Picture ondition of black pattern or power off. (2) Check the power and signal cable of CTRL B/D. to CTRL B/D. with oscilloscope(more than 200MHz) elow figure. OM) (6) C (7) C 2. Hitch Diagnosis Following Display Condition -1. 4/7 or 3/7 of the screen doesn’t be shown (1) Confirm the power connector of X B/D is well plugged in which is correspond to not showing screen. part. (3) R e relevant X B/D.
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-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-4251/4251A RD(1) 00 03/10/23 35/75
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL 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 BSV-4251/4251A RD(1) 00 03/10/23 6/75
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE 2-3. It Generates Unusual Pattern of Data COF IC unit w picture, there is problem in the 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 of <case 1, 2, 3> - confirm the connection of Dat - replace the relevant
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE FACTORY MODE „ 1. Calibration : Automatic adjustment of white balance for Analogue input (PC) and Component2 (DTV) input. „ 2. Option Table 0002 : Initial installation of OSD. „ 3. Color control : Adjustment of contrast and brightness for scaler generating power. „ 4. PW565 : Adjustment of contrast and brightness for scaler input port (CH1 or CH2). „ 5. VPC3230-MAIN : Value adjustment for video decoder¡¯s brightness an
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) LC20 (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 PAGE BSV-4251/4251A RD(1) 00 03/10/23 40/75
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE - It’s out of order a panel PC attached panel ed panel (2) It may cause followings. - Open or short of SCAN F - It’s out of order a SCAN IC attach (3) Replace Y DRV B/D 2-10. The screen displays input signal pattern but the brightness is dar (2) Check the power cord of Z B/D. B/D. /D. -1 r partially on full white screen or happens discharge partially on full black screen. (1) e. (2) Check the declination of Z B/D ¢«ramp wave. 200
Belson BSV-4251, SERVICE MANUAL (BSV-4251 BSV-4251A ) MODEL NAME DOCUMENT NO REVISION NO REVISION DATE PAGE VSC BOARD PIN CONFIGURATION Pin No I/O Specification Description 1 ( 5V ) I 5V VSC 5V Input 2 ( 5V ) I 5V VSC 5V Input 3 ( 5V ) I 5V VSC 5V Input 4 ( GND ) GND 5V Ground 5 ( GND ) GND 5V Ground 6 ( GND ) GND 5V Ground 7 ( 12V ) I 12V VSC 12V Input 8 ( 12V ) I 12V VSC 12V Input 9 ( GND ) GND 12V Ground 10 ( GND ) GND 12V Ground 11 ( 12V ) I 12V FAN 12V J7 12 ( GND ) GND FAN 12V
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