Philips Repair Tips
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Results: 14238
Results: 14238
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
53UP72G
|
Sound has a whistling or buzzing sound. | Check coil l804. *05nov96 anc*. | ||
| PHILIPS |
53UP72G
|
So fica em stand by (power off). | Check crystal y301 (12mhz), does not fluctuate with level satisfactory, measure µp pin 3 (2.4v) if this is not available reference the µp will not activate "power on". *27Aug97 anc*. | ||
| PHILIPS |
53UP72G
|
No voltage (vo, +b, hvt, etc.). | +130, check if when connecting pin 52 of the micro ic300 it goes to 5 to 0v, if it doesn't change, check the computer. * 16Aug96 anc *. no voltage see f402, open case possible short in q802. * 16Aug96 anc *. +130, check integrated IC401 (6126642). * | ||
| PHILIPS |
53UP72G
|
No horizontal oscillator pulse. | Measure pin 8 of IC900, if it is above 4.5v, there is possibility of being triggered by "h&v deflection failsafe" (q501); check that there is no broken track (+170vp) close to t900. * 04Sep97 anc *. | ||
| PHILIPS |
53UP72G
|
Light spots with dark background. starfield | Possibility of IC600 (TA8845AN). *27Aug97 anc*. | ||
| PHILIPS |
53UP72G
|
It doesn't work (it stays off). | The power supply only starts if there is a change of 5v from "off" to 0v to "on" at pin 52 of IC300, if it has a fixed 1.2v see the micro. * 16Aug96 anc *. capacitor c616 (.33uf) shorted to +12v on the small board. * 05nov96 anc *. check crystal y301 | ||
| PHILIPS |
53UP72G
|
"cross" [+] does not appear in service conv mode. | Check j307 open. * 25Sep97 anc *. | ||
| PHILIPS |
53UP72G
|
Does not adjust with. red (-) "hot. red". | Check resistor r380 (0.33Û) changed. * 16Sep97 anc *. | ||
| PHILIPS |
53UP72G
|
Horizontal lines (bottom or top). | With a gray screen, check for a possible defect on the panel Transcorder (PAL/NTSC). * 15Aug96 BC *. presents risk and no dos, see ic600 (ta8845an). * 27Aug97 anc*. | ||
| PHILIPS |
53UP72G
|
Dos/menu - running vertically. | Check integrated ic300 on "small" panel. * 03mar97 anc. | ||
| PHILIPS |
53UP72G
|
Turns off immediately after turning on. | Check open fuse f409, do not use resistor to test operation, as the defect would remain, but with time larger to turn off. * 16Aug96 anc *. check open coil l417. * 29Aug96 anc *. capacitor c616 (.33uf) shorted (at + | ||
| PHILIPS |
53UP72G
|
Turn off inter. or protect (rew 3 for vcr). | See l417 with bad internal contact. * 29Aug96 anc *. | ||
| PHILIPS |
53UP72G
|
Damage IC or TS semiconductor | Q906 (d1556) and r934, check tsh (primary with impedance ok, problem in the secondary winding). * 04Sep97 anc *. | ||
| PHILIPS |
53UP72G
|
Damages resistor | Only resistor r934, possibility of TSH being defective in the secondary. * 04Sep97 anc *. resistor r380, possible short in q357. * 16Sep97 anc *. | ||
| PHILIPS |
53UP72G
|
Damage fuse | F1 and f2, check possible short in q357. * 16Sep97 anc *. f409, check smd capacitor c458 (4.7µf) with possible escape. *23Oct97 anc*. | ||
| PHILIPS |
53UP72G
|
Colored outlines in the image (rgb). | Check cable j468 pine 1 (32v) internally split. * 18mar97 anc *. | ||
| PHILIPS |
53UP72G
|
Commands do not work (all). | After heating, check crystal Y301 (12MHz) the level vpp drops, causing the computer to crash. * 02Apr97 anc *. | ||
| PHILIPS |
53UP72G
|
Poor brightness (little shine). | Check for possible leakage on pin 51 or 52 printout. ic600. * 15Aug96 *. | ||
| PHILIPS |
53UP72G
|
White with traces (or some faint color). | J608 connection bad connected. * 03mar97 anc *. | ||
| PHILIPS |
53UP72G
|
Heating resistor | R54 e r56 (+15), verifique ic110 (n5532). * 25set97 anc *. |