| Make | Model | Problem | Solution | Date |
| | | |
| Found: 11
|
| Philips | L7.2E | Crack in sound when switching to a stereo FM program (2CS) | This happens before the word "stereo" appears on the screen.
Put the sound board option code (SB) to IT position instead of NI.
This setting will be activated if you switch the TV set OFF and ON.
REMARKS : IRIS CODE 1 5 4 X. | 14-09-04 |
| Philips | L7.2E | Dead - eht comes up then goes to st/by | Field o/p IC TDA9302H - -ve I/p s/c to chassis - chip u/s | 14-09-04 |
| Philips | L7.2E | How to enable/disable Hotel mode | See chapter 5.7 Chassis doc L7.2E AA, but with some difference in menu handling.
Pr 38, local vol -/+ and RC OSD > 3 sec. Hotelchannel 38 appears, you can get confirmation by using the stop rule but this is not necessary. Now the intallation menu is unac | 14-09-04 |
| Philips | L7.2E | Installation impossible | When child-lock is actived for one channel then it is impossible to install new channels. You have to find the channel that is locked, or set child-lock for all channels and then you can disable childlock (for all channels at once). If you forgot your con | 14-09-04 |
| Philips | L7.2E | No vertical deflection | Replace IC7401 (TDA9302H), add also a zenerdiode BZX79C51 between the pins 4 and 5 of the IC. Anode of the zenerdiode to pin 4 and the cathode to pin 5. Service code BZX79C51 is 4822 130 34257
REMARKS :It is recommended to apply above mentioned modifica | 14-09-04 |
| Philips | L7.2E | Preventive action | Preventive action: For all L7.2E sets brought in service, the next action should be done in order to prevent frame IC7401 (TDA9302H) from damage. Mount a zenerdiode BZX79-B51 (4822 130 34257) anode on pin 4 IC7401, cathode on pin 5 IC7401. In case IC7401 | 14-09-04 |
| Philips | L7.2E | Rattle or no sound during autosearch and receiving 2CS BG programs | Replace the IC7202 (MSP3400) on the audio board by MSP3410D.
Service code 4822 209 15832
REMARKS: Fault only occurs in types 21PT4204/00; 21PT4305/00; 21PT4404/00; 52TA4315/03 | 14-09-04 |
| Philips | L7.2E | St/by only - insufficient lin dr | LOPTx | 14-09-04 |
| Philips | L7.2E 21PT1663 | Reverts to st/by aft brief period (no pic) | Prot mode operating - FOP chip IC7401 was s/c & R3449 1R ?w, R3451 2R2 1/3w o/c. Fit BZX79C51 zener across pins 4 & 5 of FOP chip (anode pin 4) to prevent chip damage | 14-09-04 |
| Philips | L7.2EAA | Dead aft initial front LED lit bright | R3451 o/c due to Field chip IC7401 u/s & check D6468 | 14-09-04 |
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| Philips | L7.2EAA | Field cct upgrade | Add 51v zener between pins 4 & 5 IC7401 (cath pin 5) | 14-09-04 |