How To Lcd Monitor Repairing

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Uploaded on January 28, 2010 by RepairLcdMonitor

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Monitor Repair Tips
Infinity Monitor Model: 14ED (W745114477 Chassis)
No power
Checked and tested power supply section, all resistors and filter capacitor checked ok. Replaced IC802 and unit then powered up ok

Likom Monitor Model: L503RDN (13MLB0004424 Chassis)
Vertical problem, small picture, cannot adjust, sometimes rolling
Checked vertical section and found resistor R527 (10ohms) located near ICU501 had gone high resistance, replacing resistor cleared the fault

Kds Monitor Model: VS21E (Evoked 2100K Chassis)
Dead
I found following parts had failed: Q425, C4924 and R497 (10ohm, 1w), the horizontal output transistor was also short circuit, replaced with type BU2527

Dell Monitor Model: D-1728D-LS (FCC ID A3LCMG737)
No display
I checked many parts in the Video driver area and found all was ok but IC MM1207 was found to have failed

Sony Monitor Model: GDM2036S
Monitor dead, green led comes on then fades out, EHT sometimes starts up
Remove power supply (very easy on this monitor). I found C102, C109, C112 and C101 on sub board o/c plus C19, C8 and C9 on main pcb also o/c, all 105deg caps. This is a quality built monitor

Mag Monitor Model: DX1795
Reduced width with failure to store settings
Dry joints on the display mode relay RL501

Silicon Graphics Monitor Model: 340C (Panasonic PanaSync P70)
No horizontal, single white line up centre of screen

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