LCD LED TV Panel Modification & Major Repairs Tips For "SONY, Philips,Panasonic,LG,samsung
How to troubleshoot the LCD LED TV Panel picture and screen
There are lines on the screen, the screen is fuzzy, has double images, is too bright or dark, or has strange colors.
Collection Of LCD TV Repair Cases
Here we'll be providing a group of LCD TV repair cases, gathered from a decent reliable source. We've seen a number of these cases in our repair research laboratory and have well-tried to be terribly helpful.
LG: No start-up. Standby crystal rectifier flashes from red to inexperienced
Model/s: LG 32LC56ZC LCD TV
Symptom: No start-up. Standby LED flashes from red to green
Cure/Solutions: Check or replace C202, C206, C217, C218 (all 2200uF/10v) and C226 (470uF/25v).
LG: image divided into several parts. Distorted image
Model/s: LG 32LC56 LCD TV
Symptom: image divided into many parts. Distorted picture Cure/Solutions: Replace T-CON (Part Number: 218394).
LG: Stuck in standby
Model/s: LG 32LC56ZC LCD TV
Symptom: Stuck in standby
Cure/Solutions: Check & amendment C204. If pcb board stained around R208 then replace PSU.
LG: "No Signal" displayed
Model/s: LG 32LC45 LCD TV
Symptom: "No Signal" displayed. No sound and no picture. Backlight and OSD menu ok. crystal rectifier is inexperienced color light.
Cure/Solutions: attempt to update computer code if not then replace main signal board.
LG: No Power
Model/s: LG 47LF66 LCD TV
Symptom: No power
Cure/Solutions: amendment C202, C206 and C217 (all 2200uf/10v) on informatics board (Power provide electrical converter Board)
LG: No Power
Model/s: LG 37LF66 LCD TV
Symptom: No power
U500 (ICE3B1565J) short and liquified electrical device FB501 (2.2R) open circuit.
Cure/Solutions: Check safety resistor for open circuit. Replace D501 (UF4007), 3.6v zener diode ZD502 (1N5227) and C508 (33uF/50v).
LG: Negative image and no sound
Model/s: LG 47LY95 Chassis LD75A LCD TV
Symptom: Negative picture and no sound. Voltage low at pin seven of connective P202.
Cure/Solutions: Check Q202 (AP72T02GH), U203 (APU3037M), Q203 (AP60T03GH) and connector P202 in PSU. additionally check or replace C221, C222, C223 and C232.
LOGIK: No sound or picture. The front controls illumine & relay clicks.
Model/s: Logic LCXW32HDI LCD TV
Symptom: No sound or picture. The front controls illumine & relay clicks. Cure/Solutions: Check or replace R65 (2M) in U3 PSU for open circuit.
Panasonic: Enter Service Mode.
Model/s: Panasonic TX-32LED7FM Chassis GLP22M LCD TV
Symptom: Enter Service Mode.
Cure/Solutions: one. Press F button to access volume setting.
2. Press V- button on set till volume reaches minimum.
3. whereas still holding V- button press zero button thrice on remote control.
4. Press 1 and a pair of buttons to scroll through the menu.
5. Press three associate degreed four buttons to pick out an adjustment.
Panasonic: Enter Service Mode.
Model/s: Panasonic TX-32LED7FM Chassis GLP22M LCD TV
Symptom: Enter Service Mode.
Cure/Solutions: one. Press F button to access volume setting.
2. Press V- button on set till volume reaches minimum.
3. whereas still holding V- button press zero button thrice on remote control.
4. Press 1 and a pair of buttons to scroll through the menu.
5. Press three associate degreed four buttons to pick out an adjustment.
Philips: image interference if distinction operate is used.
Model/s: Philips 23PF9966/37 LCD TV
Symptom: image jitter if contrast function is used. Cure/Solutions: Replace junction transistor 7563 on Scalar board.
Philips: No sound
Model/s: Philips 23MW9010/37 LCD TV
Symptom: No sound
Cure/Solutions: Defective sound output IC7731 (AN7522).
Philips: Stuck in standby
Model/s: Philips 42PF7621/D10 LCD TV
Symptom: Stuck in standby. Switches to protection mode inexperienced crystal rectifier flashes.
Cure/Solutions: Replace capacitors 2540 and 2544 (both 10nF). amendment to each with 220nF.
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