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
PHILIPSGR1-AL
Vertical flutterCapacitors c162/c182. **
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Vertical closing intermittent.Capacitor c407.**.
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Vertical running (sync2).Possibility of r195 being altered. * Jul 95 jpba *. when in uhf, micro ic900 defective. * 29Dec 95 jpba *. check, some devices have a capacitor in the position c181 (4k7) possible escape. * 08Oct96 anc *.
PHILIPSGR1-AL
Vertical with little amplitudeLeaky capacitors c419/c426/c406/c407.**.
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Voltages above specifiedOpen resistor r340. **
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Voltages below the specified (vo, +b,..)(+16 low with 70 normal), follow this procedure: 1st) measure collector of ts502 less than 50v see: resistor r326 (1k8), resistor r321 (100Û), capacitor c326, check s320 coil welding. 2nd) high ts502 collector voltage, see: resistor r501 (27k
PHILIPSGR1-AL
Tension decreases.+16v and +70v supply, leak in diode d365 (5v6). *08nov95 anc*.
PHILIPSGR1-AL
Green fabricIC997/IC900. **. s925 d365/d945 ts360 kt923 c921 ic401, it does not generate an adequate pulse for the computer and it freezes causing the defect. * 29jan96 anc *. leaky ts943 (bc548) transistor. * 02dec96 ac *.
PHILIPSGR1-AL
Screen darkens from left to right.Transistor ts245 com fuga. * jul 95 jpba *.
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Purple screen (no green)Resistor 3721.
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Screen half dark or noisy.Integrated IC130 (not vertical sense).
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Dark "black" screen (see also bril4).Changed resistor r556 (was 7k). * 20Dec95 ctr *.
PHILIPSGR1-AL
Gray screen (no video)Leaky capacitor c172. * Jan 95 BC *. integrated IC040, when AV device. * Jan 95 BC *. capacitor c225 (33pf) leaking. * 26Feb96 anc *. capacitor c189 (100pf) leaking. *anc*.
PHILIPSGR1-AL
Cyan screen (no red) = red1See leaky capacitor 2910. **.
PHILIPSGR1-AL
Blue fabricResistor r710 .**.
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Distorted or noisy sound.Monitor devices came out with an extra transistor ts625, to remove. *inf*.
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Sound decreases by pressing vol+ [(display ok)].Check adjustment of the 4.5mhz coil. * 18mar97 man *.
PHILIPSGR1-AL
Noisy or crunching soundSee altered capacitor c135 (47uf). *08out96 anc*.
PHILIPSGR1-AL
Crackling sound (click, tok).Ver capacitor c135.**.
PHILIPSGR1-AL
Low or no sound in av.Diodo d012. * out 95 ctr *.