| Make | Model | Problem | Solution | Date |
| | | |
| Found: 711
|
| Sharp | C1420H | No start up | STR40090 | 14-09-04 |
| Sharp | C1420H | No tuning - sound or channel change. | Channel change button. | 14-09-04 |
| Sharp | C1421 | Dead with no st/by relay energising | No volts reset pin 11 of micro IC1002; D607 zener s/c | 14-09-04 |
| Sharp | C1421 | Fback lines | HT to RGB only 72v (180v) - C620 4µ7 250v & R620 22R | 14-09-04 |
| Sharp | C1421 | Sound low | L301 in if unit | 14-09-04 |
| Sharp | C1421 | St/by only - comes on briefly at sw on | OK on 110v ac mains - STR40090 faulty | 14-09-04 |
| Sharp | C1421 7PS | LINE JITTER | R308 820k | 14-09-04 |
| Sharp | C1421 7PS | LOW SOUND , ACTION OF VOL CONTROL ALTERS , ABOVE HA | CHECK L301 - IF UNIT | 14-09-04 |
| Sharp | C1421 7PS | Set dead StBy relay not enigised | Check pin 11 IC1002 for reset V & D607 | 14-09-04 |
| Sharp | C1421 7PS | Stuck in standby. | RY701 RELAY WINDING OC | 14-09-04 |
|
|
| Sharp | C1421 7PS | Stuck in StBy EHT comes up then goes into StBy | STR40090 u/s | 14-09-04 |
| Sharp | C1421H | St/by only | RY701 relay o/c winding | 14-09-04 |
| Sharp | C1430H | pic stable with no sound, when sound is up then pic shakes in sympathy with sound | replace R680 10k. It is connected to Q610 line startuo regulator, and if o/c causes PSU overcurrent to become operative and lower supply voltage under current demand presented by sound output stage. | 14-09-04 |
| Sharp | C1430H | Shuts down aft 4 mins | Increasing brightness instigates fault - beam curr lim prot fault - R623 1M2 o/c | 14-09-04 |
| Sharp | C1430H | SOUND MODULATES PIC , OK. WITH NO SOUND | R680 HIGH OR OC. 10K | 14-09-04 |
| Sharp | C1431 | Dead with psu working | No 12v pin 8 X0712 - R679 100k o/c | 14-09-04 |
| Sharp | C1431 | Reverts to st/by aft 10 secs of sw on | To dis trip - disconnect Q603 - if ok then the fault is in trip cct; R623 1M2 o/c & check other hi val res | 14-09-04 |
| Sharp | C1431 | Set dead PSU working line osc does not start | Check for 12V at pin 8 X0712 if missing R679 ( 100K ) o/c | 14-09-04 |
| Sharp | C1431H | Dead - psu works with 115v HT to LOP | No line dr - R679 100k in supply to IC801 o/c | 14-09-04 |
| Sharp | C1451E | Flashing pic after warmed up | C619 10µ 100v | 14-09-04 |
| Sharp | C1451SC | Excessive horizontal width. | Check replace C613 cap. | 14-09-04 |
| Sharp | C1451SC | Excessive horizontal width. | Check replace C613 cap. | 14-09-04 |
| Sharp | C1451SC | Foldedover picture,reduced height and visible white line in te centre of screen. | Change C508 2,2uF/35V tantalum cap. Seemed to be O.K with a VOM. | 14-09-04 |
| Sharp | C1451SC | Foldedover picture,reduced height and visible white line in te centre of screen. | Change C508 2,2uF/35V tantalum cap. Seemed to be O.K with a VOM. | 14-09-04 |
| Sharp | C1495 | FIELD COLLAPSE | R511 15k R512 1k2 | 14-09-04 |
| Sharp | C1495 | Field collapse | R511 15k & R512 1k2 o/c | 14-09-04 |
| Sharp | C14ET1EK | Bright blank raster with no sound | Check spker plug in CN201 NOT CN602 | 14-09-04 |
| Sharp | C1871 | Field partial collapse | R525 | 14-09-04 |
| Sharp | C1871 | Frame collapse. | R525. | 14-09-04 |
| Sharp | C1891 | Brightness variation. | Resistors in series with first anode control arcing. | 14-09-04 |