Belson BSV-4251 User manual
SERVICE MANUAL (BSV-4251 BSV-4251A )
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Service Manual
BSV-4251/4251A RD(1) 00 03/10/23 1/75
SERVICE MANUAL (BSV-4251 BSV-4251A )
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CONTENTS
SPECIFICATION ..………………………………………………. 4
CONTROL DESCRIPTIONS …………………………………... 7
OPTIONS EXTRAS ..……………………..…………………… 9
REMOTE CONTROL BUTTONS ………..……………………. 10
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 ……………………….. 32
CIRCUIT OPERATION & WAVEFORM……………………….. 34
MODULE SUPPLY VOLTAGE SEQUENCE …………………. 41
VSC & PSU POWER SEQUENCE ……………………….….... 42
VOLTAGE & W/B ADJUSTMENT……………………………… 44
SAFETY PRECAUTIONS …………………………………………49
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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 ……… 67
EXPLODED VIEW PARTS LIST ………………………………… 69
REPLACMENT PARTS LIST …………………………………….. 71
EXPLODE VIEW …………………………………………………… 75
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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SPECIFICATIONS
Note : Specification and others are subject to change without notice for improvement.
●TV
1.Input Signal :
PAL
SECAM
SD,HD
VGA ~XGA
2. Tuner : PAL
SECAM
2. Input Voltage : AC 100V ~ 240V,@ 50/60Hz, 4A
3. Power Consumption : 320W
Stand-by : 5W
4. PDP Module : PDP42V51000,51300(YBT), 51330(newASIC) - LGE
5. Speaker Impedance: 8 §Ù
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 Input (Bottom,4Pin DIN)
- SCART1 Input (Bottom, Full)
- SCART2 Input (Bottom, Half)
- Tuner (Bottom, PAL,SECAM)
- External SPK Out (Bottom, SPK Jack)
- Audio Input (Bottom,RCA Jack,AV,Component1/2,S-Video,RGB)
- RS-232C (9 pin) , TCP / IP Support (0~255set)
8. Function :
- ARC
- PIP (PIP Swap,Sound Swap)
- PBP (4:3,16:9)
- MTS
- TTX
9. External Interface
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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1)AV/COMPONENTOutput
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(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 60.00 HDTV 720P
1280*720 44.96 59.94 HDTV 720P
1920*1080 33.75 60.00 HDTV 1080I
1920*1080 33.72 59.94 HDTV 1080I
3)SUPPORTIING DISPLAY Mode
* It is optimal screen when the resolution is 640 * 480
RESOLUTION H-Freq(KHz) V-Freq(Hz)
31,47 60
37.86 72
640*480 37.50 75
720*400 31.47 70
35.15 56
37.88 60
48.88 72
800*600
46.88 75
48.36 60
56,48 70
1024*768 60.02 75
10. RS-232C Signal
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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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
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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OPTIONAL EXTRAS
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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◐Optional 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 control aim it at the remote control sensor of the Monitor.
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SERVICE MANUAL (BSV-4251 BSV-4251A )
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TELETEXT FUNCTION
BSV-4251/4251A RD(1) 00 03/10/23 10/75
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