Philips Repair Tips

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Results: 14210

Make	Model	Symptom	Problem	Solution	By
PHILIPS	29PT4631/78R	No plot and no sound	This TV had no plot and no sound. When activating the remote control, the LED responded normally. in the on position there was 126v at the tsh collector. It seemed like that classic defect of this model in which you just need to replace the transistors q7461 (bc337-25) and q7463 (bc327-25) plus the capacitor 2455 (47μfx25v). I was able to observe that only the bc337 was altered, but after replacing the three components the defect did not change. in the collector of q7461 it had 11v base 0v and emitter 0.3v. I started to suspect that the q7462 (pdtc143zt) could be the cause of there being no voltage at the base of the q7461, but as it is an SMD that is difficult to buy anywhere, I did some more tests and the defect was the q7460 (bu4508dx) completely shorted between base and emitter. Before, I had only tested between collector and emitter (where the short normally occurs). As I had a bu2725dx available I put it as a replacement. in place of q7461 I put 2sd667 and in place of q7463 I put 2sb647. An interesting detail is that the q7461 heats up much more than the q7463, which is why I put a small heatsink on it.
PHILIPS	20CN4465	Message on display f1	Capacity 100mf in CR receiver shield	To replace	alexander
PHILIPS	14PT4131/78R	Dead	Photo-coupler 7515 tcet 1103 defective		Jaison
PHILIPS	PT4640/78 L1	Turns on/off in a few seconds	C2455,q746/q7463 e screen	Replace these components even if they are good, and lastly, if they continue to turn off by themselves, check the flay screm" due to internal oxidation causing this problem, if possible, when adjusting, mark the position and add a drop of glue so that it does not become loose	ELETRÔNICA PALAURO
PHILIPS	29PT5645	Turns on, TV with dark screen vertical lines and disarms	Shorted smd diode 6451 and capacitor 2465 10/100v		ladmyr rezende
PHILIPS	20GX	Blurry image	Change the kinescope socket		edson proesi
PHILIPS	21GX1656/78Z	TV with sound, screen off, that is, no image.	When doing the repair, I verified that the tube filament was lit, so that's when I released the screen wire from the tube plate, turned on the TV and measuring I didn't find voltage, it causes fly-back.	The fly-back= at2079/b5 was replaced and it was... ok.	Armando
PHILIPS	20PT3331	TV didn't tune in to any channel, but the AV came on normally	This TV gave me a bit of trouble but nothing that can't be resolved. The seletronic power supply tensions were all ok. I went as far as replacing it. But it didn't solve it. That's when I decided to check around the varicap. I went to the pin 4 and 5 of the seletronic and I had a surprise following the trail there are 2 100r smd resistors on them, they are written like this (101) because they were burnt out	I replaced spark plugs and it was file, position r smd 3003, rsm 3004. pin 4 and 5 of seletronic scl sda	heliomar
PHILIPS	21PT6456 SL03 11	Buzzing in horizontal and vertical closed	R 3445 1r open power supply 12-
PHILIPS	29PT5642/78	Image with retrace at the top.	Capacitor 2465 (10mf x 100v)		Persio
PHILIPS	28PW5324/01 A8.0E AA	Doesn't start	Cond in mat 2633 (152k/2kv) short	Good power supply fuse	JOAQUIM CUNHA
PHILIPS	21PT8467/78	Vertical closed with a horizontal stripe and turns off after 3sg	Resistor (3445) 1r open		letwister
PHILIPS	FW-C505	No sound	I had the 3.15 amp left output protection fuse burnt out. device.it only outputs sound on one channel if the good output is on the left side.in other words, on the ci7301, otherwise it does not output sound on one channel.	In short, I inverted the output from the 7302 to the 7301 and replaced the output that was on the 7301 with a new one because it was shorted from pin12 to pin11, in this specific case it cannot measure on this pin.	This email address is being protected from spambots. You need JavaScript enabled to view it.
PHILIPS	FWC-507	No sound	Ci 7403 replacing pin 10 with 9 has the same function		eletronica alsat
PHILIPS	16GL1031	Green screen with retrace line	Após checar ic 997, ic900, s925, d365, d945, ts360, kt923, c921, ts943	I replaced the micro tmp47c434-r308 and the TV started working again	Marcio
PHILIPS	16GL1031	When turned on, the normal image appeared for about 3 seconds, then the screen turned green with a retrace line	Image tube replacement		Marcio
PHILIPS	21PT5433 L03LS1	No audio	Oops with changed data	Op1-000,op2-215,op3-001,op4-226,op5-082,op6-080 e op7-066	MAXWELL ELETRONICA
PHILIPS	DVP642K	Inoperative only on stand by	Q 301 short	Replace transistor	DEBIQUE
PHILIPS	14PT240S	Acting protection	Cold welding on vertical outlet	After resolving the same, the TV returned to normal	sergio
PHILIPS	29PT658A L01.1LAA	It turns off after a few minutes, sometimes it turns off as soon as it has just been turned on.	I changed q7461, and nothing, I changed c2455 with no improvement, I noticed that when the TV was off the air "without antenna", it didn't turn off, only when 10 minutes had passed and the message appeared on the screen that the TV would be turned off, if you change the channels without stopping it also wouldn't turn off, so I decided to make small adjustments to the 'vg2' screen, after a few attempts the TV stopped and turned off, returning to work normally.		This email address is being protected from spambots. You need JavaScript enabled to view it.