PHILIPS TV Repair: Common Faults and Solutions.


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PHILIPS Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Voltage varying.Check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Mechanical noise in stand by.Check resistor 3520 (1k2) and capacitors 2528 (22µf, 50v), 2520 (10nf), 2452 (22nf) this capacitor was not mounted on the first models.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
"frame twinkling with/without expansion ""bloom"". "Check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Protection" error 5"", in this case check 7200, 75 41, 7491, 7493, 7496, see details on page 20 "Table 5.3 of the service manual. give priority to checking the 3v3 regulator 7493.$$#
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Has no colorsCheck for possible leakage in the 6318 diode (8v2 zener diode), generally the screen has excessive contrast and may turn off intermittently.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Left channel doesn't workFrom the headphone output, check resistor 3981 (120r).
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Does not work (it remains switched off).Check 6505 (zener 22v), 7520 (ci tea1506t) and capacitor 2521.$$#
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Does not accept remote commandCheck capacitor 2691 (100µf).
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Hotel modeNo cr 319753 mute.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Return lines when calling.Verificar capacitor 2460 (68nf 100v).
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Turns off immediately after turning on.Check diode 6624 (bas316) and capacitor 2616 (10µf).$$#
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Turn off inter. or protect (rew 3 for vcr).Check possible failure in resistor 3475 (10k), frame_out information line.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Turn off inter. or protect (rew 3 for vcr).Check for possible leakage in the 6318 diode (8v2 zener diode), generally the screen has excessive contrast and may turn off intermittently.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Turns off when changing channels" this problem may be caused by ""por3.3v / 8v "
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Excessive contrastCheck for possible leakage in the 6318 diode (8v2 zener diode), generally the screen has excessive contrast and may turn off intermittently.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Colored outlines in the image (rgb).Check capacitors 2300 (red), 2301 (green), 2302 (blue).
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Commands act intermittently.Check resistors 3685, 3686, 3687, 3688, 3682.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Excessive shineVerificar resistor 3300 (33k) panel trc.
PHILIPS14PT4131/3131-20PT4331/3331 L03.1L AA
Poor brightness (little shine).Check possible alteration of resistor 3206 (1k).
PHILIPS14PT1353
Does not work (it remains switched off) with the power supply oscillatingCheck capacitor 2423, on the but11ax emitter