| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | 25PT4103 L6.2 | Pulsing psu & EHT | R3425 12R in line dr o/c | ||
| Philips | 25PT4103 L6.2 | Line & pulling moving up or down pic | 7501 BF487 in power supply. | ||
| Philips | 25PT4103 L6.2 | Int dead apart from buzz or lines/disturbance | Transistor 7501 BF487 | ||
| Philips | 25PT4103 L6.2 | Dead with smoke | C2912 2n2 2kv split but no pic with buzzing when replaced - works on 200v ac - check R3514/5 1R ½w current sensing res in psu | ||
| Philips | L6.2 21PT1653 | dead, chopper Tr s/c | R3524 22R gone high | ||
| Philips | L6.2 | noise on one channel or stereo indication on mono transmission | replace IC7353 MSP3400C (482220913099) | ||
| Philips | L6.2 | Width/ E/W dist | C2915 390nF o/c | ||
| Philips | L6.2 | Width control inop | TR7908 STP4NA40F1 s/c between gate & source | ||
| Philips | L6.2 | The set does not work anymore after switching it into the standby mode | Replace the line output transistor 7906. Also replace the line output driver transistor 7421 by type BC368-25 (use only a Philips version) The service code of BC368-25 is 933869720112. REMARKS : The cause is that the line output transistor 7906 | ||
| Philips | L6.2 | St/by light glows dimly only | fuse 1502 630mA o/c, then no field scan, 3928 1R res o/c, then bright raster due to no 160v line, R3429 2R2 fusible from LOPTx o/c | ||
| Philips | L6.2 | Sometimes loud noise out of speakers. | Check memory IC7605. | ||
| Philips | L6.2 | Sometimes hang-up of set; only teletext version ! | Change pos 7505 to BC337-40, service codenumber 4822 130 41344. See diagram A1, power supply. (pos 3500 is already 470 Ohm in L6.2) IRIS code 2 1 1 X. REMARKS : Only teletext version | ||
| Philips | L6.2 | Set totally inoperative. Squeaking sound. | Check C2915 on deflection module. | ||
| Philips | L6.2 | Set switches to STEREO during MONO transmission | Check and replace if necessary IC7221 on the Nicam module by the MSP3410-D (4822 209 15832). REMARKS : This solution will be implemented in production from week 9742 onwards. | ||
| Philips | L6.2 | Set does not start up if mainsvoltage is below 210 Volts. | Change resistor R3509 in circuit diagram A1 from 47K 0.5 W to 47K 1W. Service codenumber 47K 1 Watt: 4822 053 10473. REMARKS : iris code 1 1 1 9 |