| Make | Model | Problem | Solution | Date |
| | | |
| Found: 1771
|
| Ferguson | TX90 | Height excessive - no line sync. | D137 ( 68v ) zener leaky. | 14-09-04 |
| Ferguson | TX90 | Height variations - frame bounce. | D137 ( 68v ) zener leaky. | 14-09-04 |
| Ferguson | TX90 | Hum bar - no sweep tuning. | D908 s/c , R969 o/c , TR916 , TR917 s/c , R966 o/c. | 14-09-04 |
| Ferguson | TX90 | Hum bar on picture - HT low. | L120 s/c , TR107 ( BD839 ) o/c. | 14-09-04 |
| Ferguson | TX90 | Int dead | Mains tfmr int o/c pri winding | 14-09-04 |
| Ferguson | TX90 | Int fuse blowing. | Mod uprate fuse from 1A to 1.6A | 14-09-04 |
| Ferguson | TX90 | Int loss of sound & picture. | LOPTX | 14-09-04 |
| Ferguson | TX90 | Int sync | C124 2n7; C129 68nf | 14-09-04 |
| Ferguson | TX90 | Int tuner drift, hum on pic, field roll | int continuity of track near hole by 12v reg | 14-09-04 |
| Ferguson | TX90 | Intermittent sound mute & no channel change. | C908n ( 10nf ) leaky. | 14-09-04 |
|
|
| Ferguson | TX90 | Intermittent up/down operation - sound muted. | C908 ( 10nf ) leaky. | 14-09-04 |
| Ferguson | TX90 | Lack of height | Hi res resistors in chain to tr104 base - replaced all 4 with a 22k | 14-09-04 |
| Ferguson | TX90 | Lack of height | R203 behind heatsink 33R o/c | 14-09-04 |
| Ferguson | TX90 | Lack of height may be intermittent. | R187 ( 6.2k ) goes high in cct when warm. | 14-09-04 |
| Ferguson | TX90 | Lack of height. | D106 leaky. | 14-09-04 |
| Ferguson | TX90 | Line collapse - Int. | Cracked print around T103. | 14-09-04 |
| Ferguson | TX90 | Line collapse intermitt - line transistor o/c | Check for cracked print around T103. | 14-09-04 |
| Ferguson | TX90 | Line collapse line transistor blown. | C211 base TR113 to +12v if 220nf fit 22nf. | 14-09-04 |
| Ferguson | TX90 | Line collapse line transistor blown. | Check D113 if 1N4007GP change to OGF72 from ferguson. | 14-09-04 |
| Ferguson | TX90 | Line foldover in centre; ringing & goes off tune | Tr113 line driver tr | 14-09-04 |
| Ferguson | TX90 | Line jitter at low signal levels. | C194 change to 4n7f with parallel 680pf. | 14-09-04 |
| Ferguson | TX90 | Line modulated at mains frequency. | Check for cracked print on earthy end of scan coils. | 14-09-04 |
| Ferguson | TX90 | LOOKS LIKE FIELD FAULT BUT IS ON TEXT BOARD | 27Mhz CRYSTAL | 14-09-04 |
| Ferguson | TX90 | LOPT TX & TR s/c | Replace D109 ( BYD33 ) & TR107 ( BD839 ) | 14-09-04 |
| Ferguson | TX90 | Loss of CRT heaters. | LOPTX | 14-09-04 |
| Ferguson | TX90 | Loss of EHT or focus supply. | LOPTX | 14-09-04 |
| Ferguson | TX90 | Loss of focus or EHT. | LOPTX | 14-09-04 |
| Ferguson | TX90 | Loss of picture or loss of bright/contrast. | R231 o/c. | 14-09-04 |
| Ferguson | TX90 | Loss of sync - intermittent. | C129 ( 68nf ) int o/c , C124 ( 2n7 ) leaky when warm. | 14-09-04 |
| Ferguson | TX90 | Loud whine & picture frilled 120v rail 115v. | TR108 ( BC338C ) o/c , R267 ( 12k ) gone high. | 14-09-04 |