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Philips Repair Tips




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Search: philips
Results: 14238
Make Model Symptom Problem Solution By
PHILIPS 14PT3131/4131/3331/4331
Voltages below the specified (vo, +b,..) - check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS 14PT3131/4131/3331/4331
Voltages below the specified (vo, +b,..) - check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS 14PT3131/4131/3331/4331
Voltages below the specified (vo, +b,..) - g2 does not work, check 5441 tsh.
PHILIPS 14PT3131/4131/3331/4331
Voltage varying. - check possible alteration of transistor 7523 or 7515.
PHILIPS 14PT3131/4131/3331/4331
Voltage varying. - check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS 14PT3131/4131/3331/4331
Dark screen - no image or active progressive - check ci 7641, in this case it should show normal dos.
PHILIPS 14PT3131/4131/3331/4331
Dark screen - no image or active progressive - check the possibility of altered/open resistors 3443/3444.
PHILIPS 14PT3131/4131/3331/4331
Intermittent sound (crashes, hiccups) or no sound. - check smd 2202 capacitor pin 32 and 33 of the uoc.
PHILIPS 14PT3131/4131/3331/4331
Intermittent sound (crashes, hiccups) or no sound. - check 4.7nf smd capacitor position 2201, and it is common to have a failure on one side.
PHILIPS 14PT3131/4131/3331/4331
No tune = channel/station just noise/mute. - check possible alteration of resistor 3349 (27k). see item 5.7 repair tips in the service manual pg. 20.
PHILIPS 14PT3131/4131/3331/4331
Without horizontal synchronization. - check the smd 3492 resistor, the lack of soldering may cause interference in the image.
PHILIPS 14PT3131/4131/3331/4331
No focus when turning on. - remove 47µf 2494 capacitor.
PHILIPS 14PT3131/4131/3331/4331
Noise from the standby speaker. - remove 1nf capacitor position 2585. if the product's power supply is 220v, the fet 7521 must be checked for 14" models fet transistor fqpf6n80 (9322 187 17687) and for 20 and 21" models fet transistor fqpf7n80 (9322 174 27687 ).
PHILIPS 14PT3131/4131/3331/4331
Noise from the standby speaker. - add the 10nf capacitor code 2238 586 15636 in position 2901 (see service information ts05-005).
PHILIPS 14PT3131/4131/3331/4331
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.
PHILIPS 14PT3131/4131/3331/4331
Flickering frame - with/without "bloom" expansion. - check resitor 3454 open.
PHILIPS 14PT3131/4131/3331/4331
Flickering frame - with/without "bloom" expansion. - check diode 6451 altered.
PHILIPS 14PT3131/4131/3331/4331
Flickering frame - with/without "bloom" expansion. - check possible changes in the 1k 3525 smd resistor connected to pin 9 of the ci 7250.
PHILIPS 14PT3131/4131/3331/4331
Has no colors - check for possible leakage in the 6318 diode (8v2 zener diode), generally the screen has excessive contrast and may turn off intermittently.
PHILIPS 14PT3131/4131/3331/4331
Does not exit service mode or enter without being prompted. - check for possible leakage in capacitors 2461 or 2462.