| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | FL4.27 | After 10 minutes picture becomes red from right side | C2395 on the LSP poorly soldered. | ||
| Philips | FL4.27 | 22AV1440 is switched on by external VCR when FL1 is switched off | Connect 4 diodes of type BAT 85 to inputs of IC7630 on SSP. 1 diode between pin 3/IC7630 and +5V, cathode to +5V. 1 diode between pin 5/IC7630 and +5V, cathode to +5V. 1 diode between pin 3/IC7630 and -8V, anode to -8V. 1 diode between pin 5/IC7630 and -8 | ||
| Philips | FL4.27 | "NVM write protection enabled" message on screen. | Startup problem or 'NVM write protection enabled' message on screen after replacement of NVM (ST24C08CB1; 4822 209 32283) with a ST24C08CB6 (4822 209 33113). Use as replacement the ST24C08 1 (9311 021 36682). | ||
| Philips | FL4.26 | Supply switch-off sometimes | Check the +5 stand-by. This voltage has to be 5.5V and may not vary. When the voltage drops below 5.2V the set switches-off. Cure: check leakage of D6266 (BZX79/F6V8; 4822 130 34278) | ||
| Philips | FL4.26 | Supply +5V too low, black horizontal bar in picture. Bad sync. | Check/replace IC7551 (LM358N; 4822 209 70672) | ||
| Philips | FL4.26 | Sound shuts off and OSD in picture. | Voltage on pin 4 TDA8417 was 3.5V tt instead of >4.5V TT. Replace X-tal 10 Mhz (4822 242 80276). | ||
| Philips | FL4.26 | Sometimes vibration in vertical direction. | Replace C2410 (150nF 5%; 4822 121 41854) on LSP. | ||
| Philips | FL4.26 | Sometimes in protection, or hor. width varies | Check or resolder on LSP the pins of E/W bridge coil 5521. | ||
| Philips | FL4.26 | Shuts off and on again on Pr.nr. 1 after 3 hours. | D6272 (BZX55B5V6) interruption when it becomes hot. | ||
| Philips | FL4.26 | Set totally inoperative, no LEDs on. Supply hums. | R3252 220 kOhm (Start-up micro-sops) defective (4822 116 52258). | ||
| Philips | FL4.26 | Set inoperative only red or green LED. Supply was 141V but no EHT. | Line drive puls for T7506 (2SC4288A) too low. L5503 defective (Line drive coil; 4822 157 63252) | ||
| Philips | FL4.26 | Set can only be operated with Remote Control | Check whether "Child Lock" is disabled. To check this, see "Frequently Asked Questions", "How to disable Child Lock". | ||
| Philips | FL4.26 | Picture twists from top | Voltage of pin 8-IC7450 (TDA3654Q) on the LSP has raised to ca. 20 V. Check diode 6451 (BZX79/C3V6; 5322 130 34834 or BZX79/C10; 4822 130 61219) | ||
| Philips | FL4.26 | Picture OK after some time | IC7207 (SDA9205-2; 4822 209 31056) defective when set is cold. | ||
| Philips | FL4.26 | Picture gives black horizontal stripes, also on RGB | IC72027 SDA9205-2 LFR box defective (4822 209 31056). |