Philips Repair Tips
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Results: 14206
Results: 14206
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR1-VA
|
Tuner with little gain | Check saw filter (1110) tuner 1100 and capacitor 2204 (2.2uf). * 31Jul96 anc *. | ||
| PHILIPS |
GR1-VA
|
Intermittent synchronism. | Check that there are no deflector coil cables (horizontal) close to the crystal, if this occurs the crystal stops oscillate. * 10jun97 anc *. | ||
| PHILIPS |
GR1-VA
|
No voltage (vo, +b, hvt, etc.). | +5v, possible short, check eprom 7997 (x2402) or microprocessor. * 23Sep96 anc *. check defects for tens2. * 31mar97 anc *. | ||
| PHILIPS |
GR1-VA
|
No sound. (with or without image for TV, VCR). | Only at the maximum indication does the sound appear, see capacitor 2979. * 29Aug96 jo *. check open resistor 3219. * 02Apr97 fr *. ic7977 (eeprom). 03Sep98 al142* | ||
| PHILIPS |
GR1-VA
|
Without tune. | Leakage in both transistors 7101/7100 (bc558). * Oct 95 BC. check the power supply voltage (+70), when low there is no switching, as the plus +12 is insufficient to guarantee the conduction of one of the switching transistors (7100 or 7101) therefore I am | ||
| PHILIPS |
GR1-VA
|
No VHF tuning. | Changed 6100 diode (9v1). *oct 95 anc*. | ||
| PHILIPS |
GR1-VA
|
No tuning in uhf. | Check band transistor 7101 (bc558),or diode 6101 changed. * 18Jul96 BC *. | ||
| PHILIPS |
GR1-VA
|
No vertical sync (vert5). | Remove the existing glue between r3415, 3417 and c2415. *03Sep98 al142* | ||
| PHILIPS |
GR1-VA
|
Without horizontal synchronization. | Check with an oscilloscope on pin 34 of the integrated 7200 (3.57mhz), if ok: see resistors: 3226, 3232, 3248; capacitors: 2218, 2219, 2232, 2256, 2291 or integrated 7200 with wrong or defective "mask". if pulse is not ok: see crystal 1208 | ||
| PHILIPS |
GR1-VA
|
No vertical linearity. | Possibility of altered capacitor 2419. * 25Jul96 BC * | ||
| PHILIPS |
GR1-VA
|
No width (no hor deflection) vertical risk. | Capacitor 2515 open. * nov 95 ctr *. multiple components damaged, due to printed tracks open, below jumps 9604 and 9320. * 13nov95 anc *. diode 6203, leaky. * 20Dec95 ctr *. cold solder in 2509. * 28Aug96 ctr *. | ||
| PHILIPS |
GR1-VA
|
No Sound | Resistor 3923 (82Û). * 02out96 jpba *. | ||
| PHILIPS |
GR1-VA
|
Frame varies with brightness | Resistor 3556 (1k) open. * 02Oct96 jpba *. | ||
| PHILIPS |
GR1-VA
|
Searches but cannot find (barr3/sint3). | Resistor 3965 (560k). * 02out96 jpba *. | ||
| PHILIPS |
GR1-VA
|
Bright spot when turning off or stains. | Check resistor 3555 (27k) and 3701 (180k). 19Jul96 BC. Note: this phenomenon generally occurs after some time off, if it happens right after turning it off, it could be the kinescope. | ||
| PHILIPS |
GR1-VA
|
Horizontal oscillator does not start. | Measure +16v power supply, when below 11v the circuit oscillator does not start, check 2351 (220uf) and resistor 3326 (1k8) changed. * 29Aug96 anc *. | ||
| PHILIPS |
GR1-VA
|
There are no colors | Cracked printed track below jump 9253. * 15mai96 anc *. check sinc3 information for gr1va. * 1st Apr97 anc *. check sand castle line: 2509, 3506, 6506, 3505, 3239, 2252, 7207, 7200, 6415. 03Apr97 anc *. check diode 620 | ||
| PHILIPS |
GR1-VA
|
Does not turn on via remote control. | Leaky transistor 7901 (bc548). * 13may96 irhd *. check track below jump 9913. * 15may96 anc *. | ||
| PHILIPS |
GR1-VA
|
Does not work in audio and video | Check voltage of +11, see fuse 1000. * 28ago96 anc *. | ||
| PHILIPS |
GR1-VA
|
It doesn't work (it stays off). | 3560 resistor open. * Aug 95 ctr *. leaky tranfo 5505. *oct 95 anc*. measure collector voltage of 7502 (bf422) 52v, if it is low see power supply of +16v, +70v and pulse of 900mv on pin 37 of the integrated 7200; if the collector tension is high |