Inverter Board

SAMSUNG LN40A630M1F INVERTER BOARD
SAMSUNG LN40A630M1F INVERTER BOARD
Paypal   US $29.99
Sceptre X42GV Komodo Master Inverter Board 4HV1838371 C​2
Sceptre X42GV Komodo Master Inverter Board 4HV1838371 C​2
Paypal   US $49.00
Sceptre X42GV Komodo Slave Inverter Board 4HV1838381 C​2
Sceptre X42GV Komodo Slave Inverter Board 4HV1838381 C​2
Paypal   US $49.00
SONY KDL40S4100 INVERTER BOARD
SONY KDL40S4100 INVERTER BOARD
Paypal   US $22.10
SONY KDL 32L4000 INVERTER BOARDSS1320 12C01
SONY KDL 32L4000 INVERTER BOARDSS1320 12C01
Paypal   US $25.99
SANSUI HDLCD4050 INVERTER BOARD SSI400 12A01
SANSUI HDLCD4050 INVERTER BOARD SSI400 12A01
Paypal   US $39.99
Backlight Inverter Board VIT7102353 or 1926T04001 from Philips 26HF7945D 27
Backlight Inverter Board VIT7102353 or 1926T04001 from Philips 26HF7945D 27
Paypal   US $20.50
Sharp LC42D64U RUNTKA319WJZZ Backlight Inverter Board A06 227597C PCB2839
Sharp LC42D64U RUNTKA319WJZZ Backlight Inverter Board A06 227597C PCB2839
Paypal   US $19.99
VIT7900152 Backlight Inverter Board AUO 1926006301 Polaroid MAG Element
VIT7900152 Backlight Inverter Board AUO 1926006301 Polaroid MAG Element
Paypal   US $44.95
SANYO DP26648 SONY KDL 24N400 Backlight Inverter 4HV2688031 A 1926T02004
SANYO DP26648 SONY KDL 24N400 Backlight Inverter 4HV2688031 A 1926T02004
Paypal   US $20.00
A 1663 194 A A1663194A Brand new Sony Inverter board
A 1663 194 A A1663194A Brand new Sony Inverter board
Paypal   US $19.99
Magnavox 26MF337b 27 inverter board I260b1 12c or 27 d014496
Magnavox 26MF337b 27 inverter board I260b1 12c or 27 d014496
Paypal   US $26.00
Visio FHDTV10A A V Board 0171 3871 0260
Visio FHDTV10A A V Board 0171 3871 0260
Paypal   US $12.99
Hair HL26ATB1260B1 12C27 D014496 LCD INVERTER BOARD ALSO USED IN VIZIO
Hair HL26ATB1260B1 12C27 D014496 LCD INVERTER BOARD ALSO USED IN VIZIO
Paypal   US $45.00
Visio FHDTV10A Main Control board 0171 2272 2425 3647 00820 0150
Visio FHDTV10A Main Control board 0171 2272 2425 3647 00820 0150
Paypal   US $35.00
New Inverter Board Replace 6632L 0470A 6632L 0471A Perfect substitute
New Inverter Board Replace 6632L 0470A 6632L 0471A Perfect substitute
Paypal   US $68.99
LG 42LC7D UK VIT7105351 1926006413 SLAVE INVERTER Board
LG 42LC7D UK VIT7105351 1926006413 SLAVE INVERTER Board
Paypal   US $49.99
HS EE32WL M OLEVIA VIZIO INVERTER MASTER
HS EE32WL M OLEVIA VIZIO INVERTER MASTER
Paypal   US $25.00
Visio FHDTV10A Sound Audio Board 0174 1770 1844
Visio FHDTV10A Sound Audio Board 0174 1770 1844
Paypal   US $14.99
LG42LG30 UA MASTER SLAVE INVERTER BOARDS
LG42LG30 UA MASTER SLAVE INVERTER BOARDS
Paypal   US $85.00
HS EE32WL S OLEVIA VIZIO INVERTER SLAVE
HS EE32WL S OLEVIA VIZIO INVERTER SLAVE
Paypal   US $25.00
Toshiba 32av500u Master inverter board HIU 813m
Toshiba 32av500u Master inverter board HIU 813m
Paypal   US $25.50
TOSHIBA 40RF350U 42 LCD TV INVERTER BOARD SSI400HA22
TOSHIBA 40RF350U 42 LCD TV INVERTER BOARD SSI400HA22
Paypal   US $45.00
LCD INVERTER BOARD DAC 16T003 A0F
LCD INVERTER BOARD DAC 16T003 A0F
Paypal   US $23.00
VIZIO VIT7102152 INVERTER  GV42LFHDTV10A
VIZIO VIT7102152 INVERTER GV42LFHDTV10A
Paypal   US $40.00
SS1400 10A0 Inverter
SS1400 10A0 Inverter
Paypal   US $39.95
AKAI LCT42Z6TM 42 LCD TV Parts mainboard power supply inverter etc
AKAI LCT42Z6TM 42 LCD TV Parts mainboard power supply inverter etc
Paypal   US $93.99
sanyo dp32648 Inverter
sanyo dp32648 Inverter
Paypal   US $14.00
SANYO 32 LCD DP32648 INVERTER DAC 24T064 2995314700
SANYO 32 LCD DP32648 INVERTER DAC 24T064 2995314700
Paypal   US $45.00
Samsung Proscan CMO 27 D022899 Backlight Inverter t87103402
Samsung Proscan CMO 27 D022899 Backlight Inverter t87103402
Paypal   US $45.99
Visio FHDTV10A Buttons and Remote Reciever 0174 1770 1844
Visio FHDTV10A Buttons and Remote Reciever 0174 1770 1844
Paypal   US $14.99
SAMSUNG LN46A530P1F INVERTER BOARDS MASTER AND SLAVE
SAMSUNG LN46A530P1F INVERTER BOARDS MASTER AND SLAVE
Paypal   US $39.99
42 SANYO DP42841 LCD TV COMPLETE REPAIR KIT
42 SANYO DP42841 LCD TV COMPLETE REPAIR KIT
Paypal   US $185.00
Inverter transformer for RSAG78202282 ROH VER B
Inverter transformer for RSAG78202282 ROH VER B
Paypal   US $25.00
inverter board 2300ktg012a f 6632l520a for a lg 42lg50
inverter board 2300ktg012a f 6632l520a for a lg 42lg50
Paypal   US $25.00
TOSHIBA 40RF350U 42 LCD TV COMPLETE REPAIR KIT
TOSHIBA 40RF350U 42 LCD TV COMPLETE REPAIR KIT
Paypal   US $179.00
Inverter Board SSI550 16B01 for Philips 55 55PFL5705D F7
Inverter Board SSI550 16B01 for Philips 55 55PFL5705D F7
Paypal   US $40.00
Sony BRAVIA 40 KDL 40SL150 LCD TV COMPLETE REPAIR KIT
Sony BRAVIA 40 KDL 40SL150 LCD TV COMPLETE REPAIR KIT
Paypal   US $165.00
Sony KDL 32BX320 Backlight Inverter Board LG LC320WXN 6632L 0627A w Cable
Sony KDL 32BX320 Backlight Inverter Board LG LC320WXN 6632L 0627A w Cable
Paypal   US $14.00
PHILIPS LCD TV 42PFL3704D INVERTER
PHILIPS LCD TV 42PFL3704D INVERTER
Paypal   US $69.95
Sony Bravia 46 lcd KDL 46W 3000 Inverter sub power boards SET
Sony Bravia 46 lcd KDL 46W 3000 Inverter sub power boards SET
Paypal   US $24.95
RCA LCD 32LA30RQD Light driver inverter board
RCA LCD 32LA30RQD Light driver inverter board
Paypal   US $35.00
Toshiba LCD TV 42RV530U Master lamp inverter board
Toshiba LCD TV 42RV530U Master lamp inverter board
Paypal   US $24.00
WESTINGHOUSE TX 42F810G BACKLIGHT INVERTER T87102814
WESTINGHOUSE TX 42F810G BACKLIGHT INVERTER T87102814
Paypal   US $34.00
Sharp LC 40D78UN Backlight Inverter
Sharp LC 40D78UN Backlight Inverter
Paypal   US $50.99
BACKLIGHT INVERTERS INV52S20AM INV52S20AS MASTER AND SLAVE 52XV545U
BACKLIGHT INVERTERS INV52S20AM INV52S20AS MASTER AND SLAVE 52XV545U
Paypal   US $60.00
Polaroid FLM2632 backlight Inverter
Polaroid FLM2632 backlight Inverter
Paypal   US $22.00
AUO 1954T01008 Backlight Inverter Master 1 Rev6
AUO 1954T01008 Backlight Inverter Master 1 Rev6
Paypal   US $40.99
SHARP TV LC26sh12u parts
SHARP TV LC26sh12u parts
Paypal   US $.99
Bravia KDL 40S504 Inverter
Bravia KDL 40S504 Inverter
Paypal   US $31.00
Two Philips 190EW9 V7 LCD backlight Inverter Power Boards ILPI 068 491281400100R
Two Philips 190EW9 V7 LCD backlight Inverter Power Boards ILPI 068 491281400100R
Paypal   US $.99
Backlight Inverter BN81 01779A ssb400w16v01
Backlight Inverter BN81 01779A ssb400w16v01
Paypal   US $.99
SAMSUNG LN32D403E4D INVERTER BOARD INV32T4UB REV01 21101030
SAMSUNG LN32D403E4D INVERTER BOARD INV32T4UB REV01 21101030
Paypal   US $36.00
INVERTER FOR LG TV RU 17LZ22 LCD
INVERTER FOR LG TV RU 17LZ22 LCD
Paypal   US $40.00
Vizio VW42L Master Slave Inverter boards
Vizio VW42L Master Slave Inverter boards
Paypal   US $25.99
Magnavox 26MF605W 17 6632L 0118H 6632L 0117H REV08 inverters 2
Magnavox 26MF605W 17 6632L 0118H 6632L 0117H REV08 inverters 2
Paypal   US $24.99
MX 26X3 Maxent 2614XW02 VIT7100890 Inverter Board vit7100890
MX 26X3 Maxent 2614XW02 VIT7100890 Inverter Board vit7100890
Paypal   US $37.85
VIT7000260 INVERTER BOARD
VIT7000260 INVERTER BOARD
Paypal   US $35.00
Vizio VOJ320F1A Backlight Inverter KUBNKM154A Rev 10 ALPS
Vizio VOJ320F1A Backlight Inverter KUBNKM154A Rev 10 ALPS
Paypal   US $20.00
Westinghouse VR 3215 for parts extra main board
Westinghouse VR 3215 for parts extra main board
Paypal   US $.99
INVERTER BOARD 6632L 0481A
INVERTER BOARD 6632L 0481A
Paypal   US $45.00
AUT420XW01 VIT7105350 AND VIT7105351 INVERTER new
AUT420XW01 VIT7105350 AND VIT7105351 INVERTER new
Paypal   US $55.00
Samsung TV Back Light Inverter E206453 Model V144
Samsung TV Back Light Inverter E206453 Model V144
Paypal   US $50.00
VIZIO VW26L HDTV10F BACKLIGHT INVERTER CIRCUIT BOARD NEW TESTED
VIZIO VW26L HDTV10F BACKLIGHT INVERTER CIRCUIT BOARD NEW TESTED
Paypal   US $49.99
Insignia NS 32L430A11 Inverter Power Supply FSP121 2FS01
Insignia NS 32L430A11 Inverter Power Supply FSP121 2FS01
Paypal   US $34.99
Element 40 40LE45S LCD TV Backlight Inverter SSI400 16T01 TOSHIBA 40RV525U
Element 40 40LE45S LCD TV Backlight Inverter SSI400 16T01 TOSHIBA 40RV525U
Paypal   US $38.99
SAMSUNG LN40A450 C1D BACKLIGHT INVERTER BOARD MKD 4HV2358061 G
SAMSUNG LN40A450 C1D BACKLIGHT INVERTER BOARD MKD 4HV2358061 G
Paypal   US $54.00
TV POWER INVERTER POWER
TV POWER INVERTER POWER
Paypal   US $61.00
Dynex INVERTER BOARD V225 3XX
Dynex INVERTER BOARD V225 3XX
Paypal   US $10.00
Mitsubishi LT 46131 Master Inverter Board SS1460HB24 M
Mitsubishi LT 46131 Master Inverter Board SS1460HB24 M
Paypal   US $50.99
SAMSUNG LCD INVERTER BOARDS BOTH LEFT AND RIGHT SIDE
SAMSUNG LCD INVERTER BOARDS BOTH LEFT AND RIGHT SIDE
Paypal   US $125.00
HIU 813 M HIU 813 SHPC 1655E Toshiba 32AV500U INVERTER
HIU 813 M HIU 813 SHPC 1655E Toshiba 32AV500U INVERTER
Paypal   US $19.00
VIZIO VA26LHDTV10T INVERTER BOARD 715G3335 P01 000 003D WORKING PEFECT
VIZIO VA26LHDTV10T INVERTER BOARD 715G3335 P01 000 003D WORKING PEFECT
Paypal   US $12.00
CMO TOSHIBA 32C110U INVERTER BOARD T87102926
CMO TOSHIBA 32C110U INVERTER BOARD T87102926
Paypal   US $9.99
32 HITACHI LCD TV PART BACKLIGHT INVERTER BOARD I320B1 24 REV1F VK89144804
32 HITACHI LCD TV PART BACKLIGHT INVERTER BOARD I320B1 24 REV1F VK89144804
Paypal   US $35.00
PHILIPS 32PFL3506 F7 INVERTER BOARD BA17F4F0103 2 A
PHILIPS 32PFL3506 F7 INVERTER BOARD BA17F4F0103 2 A
Paypal   US $9.99
6632L 0470A 6632L 0471A INVERTER REPLACEMENT SET NEW OEM WARRANTY
6632L 0470A 6632L 0471A INVERTER REPLACEMENT SET NEW OEM WARRANTY
Paypal   US $59.95
Emerson lc370em2 inverter cba
Emerson lc370em2 inverter cba
Paypal   US $44.00
Lot Of 50 LCD Plasma TV Parts Many Different Kinds
Lot Of 50 LCD Plasma TV Parts Many Different Kinds
Paypal   US $100.00
Vizio backlight Inverter Board part 1954T01007
Vizio backlight Inverter Board part 1954T01007
Paypal   US $60.00
Tested CMO 27 D026774 Backlight Inverter I420H1 16A0 75013117 PNF10097 813
Tested CMO 27 D026774 Backlight Inverter I420H1 16A0 75013117 PNF10097 813
Paypal   US $60.00
Tested Acer IV90110 T Backlight Inverter PWB IV90110T for AL1714B 745
Tested Acer IV90110 T Backlight Inverter PWB IV90110T for AL1714B 745
Paypal   US $17.00
Brand NEW LC420WU5 Replace 6632L 0470A 6632L 0471A LG Philips Inverter Board
Brand NEW LC420WU5 Replace 6632L 0470A 6632L 0471A LG Philips Inverter Board
Paypal   US $75.00
Proscan 40LD45QC BACKLIGHT INVERTER BOARD SSI 400 14A01 RCA 40LA45RQ 40LC45S
Proscan 40LD45QC BACKLIGHT INVERTER BOARD SSI 400 14A01 RCA 40LA45RQ 40LC45S
Paypal   US $55.00
6632L 0470A INVERTER REPAIR KIT
6632L 0470A INVERTER REPAIR KIT
Paypal   US $12.10
TOSHIBA 55G310U 75021071 BACKLIGHT INVERTER KIT Rev4
TOSHIBA 55G310U 75021071 BACKLIGHT INVERTER KIT Rev4
Paypal   US $160.00
Philips 996510007721 Inverter Kit Master and Slave
Philips 996510007721 Inverter Kit Master and Slave
Paypal   US $135.99
Power Unit Board AI 0066 PCB For LG L1715S L1730S
Power Unit Board AI 0066 PCB For LG L1715S L1730S
Paypal   US $16.99
VIZIO XVT472SV BACKLIGHT INVERTER Board 6971L 0013B
VIZIO XVT472SV BACKLIGHT INVERTER Board 6971L 0013B
Paypal   US $79.95
VIZIO VW42L HDTV10A 6632L 0448A Master Backlight Inverter Core Credit $30
VIZIO VW42L HDTV10A 6632L 0448A Master Backlight Inverter Core Credit $30
Paypal   US $69.99

Macbook Backlight Inverter Board 13.3 Macbook Backlight Inverter Board 13.3"
Sale Price: $16.93
Used From: $7.49

This is an inverter board for the Macbook 13". This is the board that controls the backlight to the display and is usually the culprit of a dim display. The part is the same for both the white and black MacBooks...

14.1 14.1" WXGA/WXGA+ LCD CCFL Backlight with Wire Harness and Inverter Board Combo for Dell Laptop/Notebook Inspiron 1410 1420 1425 1427 1428 630m 640m B120 B130 E1405 Latitude 120L D620 D630 D630c D631 E5400 Precision M2300 M2400 Studio 1435 Vostro 1400 XPS M140
Sale Price: $28.70
Used From: $28.81

Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them...

Apple Macbook 13In. LCD Inverter Board Apple Macbook 13In. LCD Inverter Board
Sale Price: $14.77
Used From: $5.99

LotFancy Brand New LCD Inverter Board For HP Pavilion DV4, DV4T, DV4Z, DV4T-1000, DV4Z-1000DV4T-1100, DV4Z-1100, DV4-1020, DV4-1028, DV4-1120, DV4-1123, DV4-1125NR, DV4-1144, DV4-1220, DV4-1227, DV4-1228DV4-1280, DV4-1281, DV4T-1300, DV4-1300, DV4-1322, DV4-1365DX, DV4-1400 Series; HP COMPAQ CQ40 series ; Dell Vostro 1310 Series; Acer Aspire 5332 5532 5732Z 5732ZG 5516 5517 Series; eMachines E625 E725 Series; Toshiba Satellite M100 M105 M50 M55 M30X M35X A80 A85 Series; P/N: E131735,YNV-C01,316800000067,PWA-TF041, PK070008J20, PK070006120, 486736-001,RM559,0RM559 ... LotFancy Brand New LCD Inverter Board For HP Pavilion DV4, DV4T, DV4Z, DV4T-1000, DV4Z-1000DV4T-1100, DV4Z-1100, DV4-1020, DV4-1028, DV4-1120, DV4-1123, DV4-1125NR, DV4-1144, DV4-1220, DV4-1227, DV4-1228DV4-1280, DV4-1281, DV4T-1300, DV4-1300, DV4-1322, DV4-1365DX, DV4-1400 Series; HP COMPAQ CQ40 series ; Dell Vostro 1310 Series; Acer Aspire 5332 5532 5732Z 5732ZG 5516 5517 Series; eMachines E625 E725 Series; Toshiba Satellite M100 M105 M50 M55 M30X M35X A80 A85 Series; P/N: E131735,YNV-C01,316800000067,PWA-TF041, PK070008J20, PK070006120, 486736-001,RM559,0RM559 ...
Sale Price: $3.92
Used From: $1.49

15.4 15.4" WXGA/WXGA+/WUXGA LCD Inverter Board and CCFL Backlight with Wire Harness Combo for Dell Laptop/Notebook Inspiron 1501 1520 1521 1525 1526 6400 E1505 Latitude 131L D531 D820 D830 Precision M4300 M4400 M65 M70 Vostro 1000 1500 XPS M1530
Sale Price: $25.99

Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them...

LCD Inverter Board for Dell Laptop/Notebook Inspiron 1300 5000 5000e 500m 5100 510m 5150 5160 6000 600m Latitude 100L 110L D505 D510 D520 D530 D600 D610 D810 LCD Inverter Board for Dell Laptop/Notebook Inspiron 1300 5000 5000e 500m 5100 510m 5150 5160 6000 600m Latitude 100L 110L D505 D510 D520 D530 D600 D610 D810
Sale Price: $7.99
Used From: $7.99

Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them...

New LCD Inverter Board for Toshiba atellite A80 A85 M100 M105 M30X M35X M50 M55 Tecra A3 A5 A6 S2 Acer Aspire 5516 5517 5332 5517 5532 5732 5732Z 5732ZG 3600 5500 5500Z TRAVELMATE 290 2200 2350 2700 4050 4150 4200 4650 eMachines E625 E725 Lenovo 3000 C200 Y430 N100 HP P Pavilion dv4 Series DV4 dv4-1000 dv4-1100 DV4-1200 dv4-1300 DV4-1400 DV4-1500 dv4-2000 dv4-2100 DV4T DV4T-1000 DV4T-1100 dv4t-1500 dv4t-1600 DV4Z DV4Z-1000, DV4Z-1100 dv4i-2100 CQ40, CQ45 Compaq C40 DV4-1313DX DV4-1435DX DV4-2045DX series laptop, 486736-001. New LCD Inverter Board for Toshiba atellite A80 A85 M100 M105 M30X M35X M50 M55 Tecra A3 A5 A6 S2 Acer Aspire 5516 5517 5332 5517 5532 5732 5732Z 5732ZG 3600 5500 5500Z TRAVELMATE 290 2200 2350 2700 4050 4150 4200 4650 eMachines E625 E725 Lenovo 3000 C200 Y430 N100 HP P Pavilion dv4 Series DV4 dv4-1000 dv4-1100 DV4-1200 dv4-1300 DV4-1400 DV4-1500 dv4-2000 dv4-2100 DV4T DV4T-1000 DV4T-1100 dv4t-1500 dv4t-1600 DV4Z DV4Z-1000, DV4Z-1100 dv4i-2100 CQ40, CQ45 Compaq C40 DV4-1313DX DV4-1435DX DV4-2045DX series laptop, 486736-001.
Sale Price: $3.95
Used From: $2.97

Do not fit HP OmniBook 500 !!!

15.4 15.4" WXGA/WXGA+ LCD Inverter Board for Dell Laptop/Notebook Precision M60 Inspiron 8500 8600 9100 Latitude D800
Sale Price: $14.99
Used From: $2.09

Does your Laptop LCD screen or Destop LCD Monitor appear to be getting dimmer? is the screen flickering or suffering from the infamous pink hue (Red Tint) or simply just dark Screen? This is probably caused by the defective CCFL backlight or Inverter Board, and all you need to do is replace them...

DELL INSPIRON 1501 1520 INVERTER BOARD DELL INSPIRON 1501 1520 INVERTER BOARD
Sale Price: $8.55

Dell LCD Inverter Board Compatible models: DELL Latitude: D420, D620, D630, D640 Series Dell Inspiron: B120, B130, 630m, 640m Dell Inspiron: 1505 1520 1521 1525 1526 Series (14.1" LCD) Dell Vostro: 1500, 1000 (15...

HP Pavilion DV2000 Backlight Inverter Board HP Pavilion DV2000 Backlight Inverter Board
Sale Price: $4.97
Used From: $3.99

LCD Screen Inverter Board Compatible Models Acer Extensa 4220 4420 4620 4620Z Series HP Compaq CQ50 CQ60 CQ70 G50 Series NEW HP/Compaq dv2000 V3000 Series Acer Aspire 3624 3628AWXMi Series Compatible Part Numbers YNV-W06, 417097-001 6001894L, 19...

Inverter Board
Inverter Board

The Importance Of Electronic Components Surrounding IC's

Troubleshooting and repairing electronic equipment can really make us have a great satisfaction whenever a problem is solved. You don’t mind how many hours have been spent especially if you are a beginner and your only focus is to find out the fault and make the equipment work again. What you want is experience and the fun of learning new things as you progress to search deeper about electronic repair. But some of us as electronic troubleshooter gave up easily if come across problems that are difficult to solve, perhaps you do not understand how the circuit work and i myself was in this situation before. Don’t worry if you don’t understand how a particular circuit work as you read on I will provide some solution for you.

Usually a repair technician or engineer has a procedure or their own style of repairing equipment. I can say most of us as electronic repairer perform a test first to see what the fault is before begun to open up the equipment and repair. For example, a Monitor with one bright white horizontal line across the screen reveals to us that the fault is in the vertical section or circuit. Once the cover opens, we will head straight to the vertical section and look for dry joints, perform voltage testing, check for related components, test vertical yoke coil and even direct replace the vertical IC.

This is a normal procedure for those who have vast experience in electronic repair and truly understand how a particular circuit works. What if you are new in this repair field or don’t really understand how the circuit work? Then how are you going to solve the problem? Easy! Just direct replace the suspected section IC and check all the surrounding components. Let me put it into a better picture. A color problem usually related to the color board of a Monitor. If you don’t understand how a color circuit work-never mind, what you do is just direct replace the color IC (usually the board will have two IC’s-one is the video pre-amplifier and the other is video driver IC) and retest the Monitor. If the Monitor works fine then your problem solved. However, if the problem still remains, then you have to use another method which is checking all the surrounding components.

You would not believe that many times the IC is not at fault and the real culprit was the surrounding components like a shorted ceramic capacitor, diode or even transistor. Two weeks ago, I came across a LCD Monitor with display shut off after few seconds. After some checking I confirmed that it was the inverter board faulty. It’s a small board with many SMD components on it except the high voltage transformers and couples of electrolytic capacitors. The inverter IC is a SMD as well and I do not have this part. I proceed to check the surrounding components first before decide to order the inverter IC online. Do you know what I found? I found a shorted SMD capacitor somewhere nearby the inverter IC. The value was 0.15 microfarad and a new capacitor brought the LCD Monitor back to life again.

Another case, it was a China made 15” Monitor, the high voltage rise up to 15 KV and shutdown after tested it with a high voltage probe. I suspect the horizontal circuit is causing the problem but a new h/v oscillator (TDA4857PS IC) won’t help either. Next I just solder out all of the surrounding components (components only related to horizontal pin out) and check one by one and found one of the resistor has gone up in resistance. I do have the choice to start tracing from the pins of the IC but I found removing all surrounding components and test which is faster.

This method also can be use if you can’t find any data for a particular IC, for example a new equipment model in the market. As mentioned above it is not necessary always IC’s fault. However, if you have confirmed that all of the surrounding components tested okay then chances are high that the IC indeed faulty. This is true only if you are really sure that the circuit is the cause of the problem. In other words, you would not replace horizontal/vertical oscillator IC when there is a color problem would you?

Although you can repair electronic equipment by checking all of the surrounding components, in fact I do encourage you to learn beyond than that such as voltage and signal tracing as these methods can really speed up your repair work. You must also learn how to read a schematic diagram as well. I want you to know that some problems can’t be solved by only checking surrounding components. For instance, if the h/v oscillator IC didn’t send a signal to the gate pin of B+ FET, the display will become small (small width). Now if you check all the surrounding components in the B+ circuit, I’m sure you would not find any bad component there because the problem is in the h/v oscillator IC and this IC is located a bit far from the B+ circuit. Your time will be wasted and the problem can’t be solved!

Conclusion- This article act as a guide to assist you so that you can use the checking surrounding components method on whatever type of equipment you want to repair include boards that use lots of SMD IC’s. Your basic electronics and testing skill have to be strong otherwise a bad component you might think it is good and at the end you will not be able to detect the fault. Continue to learn and improve yourself and I believe one day you shall achieve what you want to be. All the best to you!

About the Author

Check out the two links below. You will be pleasantly surprised to find out that LCD and Electronic Repairs are so Easy and Highly Profitable for even a novice. You can learn the repairing secrets easily.

Find out How to Repair Any LCD Monitor - It is a breeze!

Learn the Secrets of Testing Electronic Components.