| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | 3A | Spare part information | Spare part information ---------------------- For the keyboard assemblies 4822 212 23132 and 4822 212 22765 only the foil is delivered, without the plastic housing (see service information HE92-06 dd 11-05-92). The separate plastic housing is now also | ||
| Philips | 3A | Spare part information | Spare part information ---------------------- The picture tube of the 17" 3A sets (A41EAM00X03) is now available with service code number 4822 131 20552. | ||
| Philips | 3A | Spare part information | Spare part information ---------------------- Keyboards 4822 212 23132 and 4822 212 22765. Only folio is supplied. Use the old case. | ||
| Philips | 3A | Sound - no NICAM standard sound ok. | IC7201 on Nicam PCB. | ||
| Philips | 3A | Sometimes no sound, no picture (+13 V on pin 27 U 1018) present. | Picture and sound OK via SCART. Check U 1018 (IF module Europe:4822 212 22439) (IF module France:4822 210 10295) | ||
| Philips | 3A | Sometimes no sound, no picture | Check soldering points of SOPS-transformer and line-transformer | ||
| Philips | 3A | SET DEAD PROTECTION THYRISTOR OPERATING | F1601 315mA OC | ||
| Philips | 3A | Set cannot be switched from Stand-by | Voltage 7,5 volt from SOPS is too high. C2681 (22 uF/35 volt 4822 124 21932 on the primary side) | ||
| Philips | 3A | Rating of fuse 1642 | Rating of fuse 1642 ------------------- The following production change has been introduced in versions of the 3A chassis which include both NICAM sound and picture-in-picture (PIP). The value of fuse 1642 has been increased from T800m/A to T1.25A code n | ||
| Philips | 3A | No synchronization | Check U 1018 (IF module Europe:4822 212 22439) (IF module France:4822 210 10295) | ||
| Philips | 3A | No sound, picture OK (Sound OK via headphones) | Replace IC 7200, IC 7210 (TDA 1514/N4; 4822 209 70938) Also mount 2 diodes P4KE30C700 (4822 209 73095) in parallel to C 2228 and C 2229. (Polarity is not important) | ||
| Philips | 3A | No picture. | TDA4580 US | ||
| Philips | 3A | No picture, Audio OK. (Picture OK via SCART) | Check U1018 (IF module Europe:4822 212 22439) (IF module France:4822 210 10295) | ||
| Philips | 3A | No picture, audio OK (+26 V on pin 9 IC7552 present) | Signal on pin 5 IC7552 not present. Check C2569 and IC7552 (TDA3654Q; 4822 209 73308) | ||
| Philips | 3A | No picture nor sound, power supply whistles. | In pin 2 of transformer 5620 resistors 2,7 Ohm broken (not men- tioned in the Service Manual). |