| Marca | Modelo (Chassis) | Sintoma | Causa | Solução | Por: |
|---|---|---|---|---|---|
| Philips | G90AE | Weak video & no sync | TDA5850 | ||
| Philips | G90AE | Txt poor - looks like purity errors | Dry joints wire links on main pcb near Txt panel | ||
| Philips | G90AE | TXT horizontal synchronization missing | Check horizontal phase discriminator detection filter capacitor C2827 (47nF; 4822 122 32542). | ||
| Philips | G90AE | Tuning, display and remote control not functioning | Voltage of pin 42-IC7720 low, TR7661 defective (BD135; 4822 130 40823). | ||
| Philips | G90AE | Tuning unstable | Voltage on diode D 6770 not stable Replace D 6770 (ZTK 33B; 4822 130 30959) | ||
| Philips | G90AE | Trips rapidly | Tr7652 BC557C in pulse width mod in psu | ||
| Philips | G90AE | Trips on & off violently aft several mins | Ozone smell - focus pin arcing - replace crt base | ||
| Philips | G90AE | Tripping with clcking thro spkr | Same on dummy load - Replace C2630/1 47µ 160v. R3668 sm 150R had dropped off. Replaced also 7652 BC557C & opto coupler as precaution | ||
| Philips | G90AE | Tripping aft 10 mins operation | Can be instigated by heating/cooling around psu - replaced 150R sm (R3668?) | ||
| Philips | G90AE | Tripping | If HT set at 95v tripping stops but blank raster. Xtal filter 1030 s/c with solder | ||
| Philips | G90AE | The voltage of +95V line alters | Check transistor 7653 (BC858A; 5322 130 42012). | ||
| Philips | G90AE | The upper part of picture consists of few lines | Check C2475 (33nF/63V; 5322 122 31848). | ||
| Philips | G90AE | Switches off and on shortly | Selects always program 1 and adjusts PP-value.Check C2397 (33nF; 5322 121 41763) on the CRT panel for leakage. Bend C2397 on picture-tube PCB from picture-tube socket. | ||
| Philips | G90AE | Stuck on chan 8, front controls & R/C inop - st/by led flashing | Replace C2843 [220uf] in 5 volt regulator | ||
| Philips | G90AE | Striations | A production change has been introduced adding the following components in the +95 volt feed to the line output stage: Description: Position no. 5558 Code no. 4822 158 10563 Choke 82uH Capacitor 10n 100V Position |