Philips Repair Tips

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Results: 14210

Make	Model	Symptom	Problem
PHILIPS	27CE4599-33R 2B	Red raster and red flyback lines	One of the paralelled 75 kΩ resistors of red was open, replaced with 47k in series with 27k and fault gone fault seeking in rgb output difficult due to intelligent auto calibrating-cutoff driver with picture mute tda4580
PHILIPS	27CE4599-33R 2B	Smearing out of one or several colors, best seen in txt-mode, my 27ce4599/30r smeared out in red and green, not in blue, fully exchanging the drivers input and output complete, otherwise the rgb driver will blank the crt moved the fault to the other color	Replace the 180k feedback resistors in the amplifiers with normal 1/4w metal film instead of 1/8w, they can become open circuited in mine both green and red were faulty in this way. change all 3 and not just the defective ones, replace also all the paralleled 75k resistors per color fe by 47k+27k to prevent bright color raster they can also become open circuit
PHILIPS	L6.2	No sound, no picture and the power supply makes a loud and low tone chirping noise	Replace shorted capacitor 2912 2n2, 2kv on the deflection module. note that 2912 is hard to find. it should be blue. if it's brown it's bust
PHILIPS	CP110	Operating fine good picture, sound and control but sometimes sharp sounds coming from the set not via audio, sounding like the lopt but more loud, sharp and variable 15 khz	The long coil next to the lopt was resonating/generating sound not the lopt itself, solved by cleaning the top and putting a bubble of silicone kit on it, and after temporarily removing the coil from the pcb fixating a ty-wrap strongly around the bottom increasing the magnet-ferrite contact-pressure and stiffness of plastic support construction
PHILIPS	37TA1070 CTT-H AA	No tuning voltage on tuner. goes for: philips and magnavox versions. also the radiotone tv386vt-scart which is the same	Resistor 3602 8kΩ broken. it is in the 95volts line providing 33v for tuning circuit. this uses the same processor as the gr1-ax which also might have the same problem. in that case resistor 3702 is to blame
PHILIPS	GR1AX	No tuning	Check r3703 for o/c and r3702. also in ctt-h aa , then r3602
PHILIPS	GR1AX	Tv will not start, seems dead	First measure the 100 volt rail, if it is missing, then desolder the field output transformer, then recheck the 100 volt again, if it is now present, replace the transformer : the type = 37622 replacement = fat 30057 konig. after that everything was ok!
PHILIPS	20GR1250/52R GR1-AX	Tv turns on automatically. power supply works well, +5v present but seems that cpu 7700 does not no standby mode, no remote or control on the front of the set	After replacing cpu tmp47c434 and crystal 1770 4.0mhz both control worked intermittently. replacing transistor 7674 bc548 solved the problem
PHILIPS	28ST2781 GR2.2 AA	Dead, psu ticking	Flyback cap 11nf, 1600v was burned which caused the bu508af flyback transistor to fail. changed both
PHILIPS	A10E	F on top righthand of screen then loss of geometery data and int shutdown, unable to restart but when try do so set cuts out	Painter ic failure, a small 100 leg device a joy to change if you have the right gear ! ref ic7064 also updated software on new ic
PHILIPS	28PW6332/05	Loud bang internally, then completely dead. plug fuse ok. set about 4 years old	Internal 4a fuse blown. bang was 330pf cap 2540 across psu mosfet exploding, suspect went s/c. diodes 6513 & 6511 cracked and s/c. replaced c2540. could not get diode 1n5062/byw55 rep, so replaced all 4 diodes with by399. psu mosfet removed and checked,ok. voila
PHILIPS	25PT4103 L6.2	Blank screen no audio. no results from tuner or scart socket. when g2 on lopt is wound up a red line is visible	Check r3438 3r3. in my case this was o/c and a replacement restored normal opperation
PHILIPS	VR6264	No video or rf output. 12.3vd.c. rail from 7002 bd678 dead	Fault traced to dead short component located on pcb502 at componet ref no. 2024 philips blue radial capacitor 330uf, 16v. philips part number 4822 124 40849. cap has markings 036k0 t0 on it. replaced and all sprang into life ok
PHILIPS	24PW6005 A10E	Intermittent or no sound, mute transistor not switching on, ref 7701.	Possible software problem! replace micro. circuit ref 7064 part no 3111 250 545 11. if thats too expensive then try fitting a 22k resistor collector to base of transistor 7701 in mute circuit!
PHILIPS PLASMA	42FD9954 S FM24	Green dots flashing over the screen in av mode	Change resistor value r3641 from 1k to 100Ω
PHILIPS	L6.3	Failure of fusible resistors r3929 and r3930 both 560r	Unfortunately when these blow it is a sure symptom of loptx failure. when replacing these resistors, check the big blue 470nf, 250v capacitor behind them for signs of heat damage and replace if necessary, to avoid a recall with resistors gone again!
PHILIPS	20PT3742	Dead with led blinking 4 times	The vertical output ic. is short circuit
PHILIPS	29FL1770 OR 25FL1760 FL1.0	Lights flashing at the front, if carefully interpreted they point to the primary of the power supply	Replaced 2sb 3795b chopper transistor, heated the heatsink with a hair dryer and it started right up, weird as the transistor was reading fine
PHILIPS	29FL1770 OR 25FL1760 FL1	When selecting a channel it locks in initially but will then go off tune as if the voltage tuning had varied	Replaced the tda i.c. in the tuner i.f. section. tried the capacitors first of course.
PHILIPS	29FL1770 OR 25FL1760 FL1	No pictures or sound	Disconnect the p1 and p2 plugs on the right hand side board. l.o.p.t. side. if the set now starts up then change all sound output ic's