| Make | Model | Problem | Solution | Date |
| | | |
| Found: 4
|
| Sharp | DV3750 | Dead - burnt out safety res R728 | Replaced R728 3k3 ?w caused by D707 - pin 7 loptx | 14-09-04 |
| Sharp | DV3750H | Blank raster, virtually no pic/sound at sw on - int | Aft chan change no sound/pic, caused by corrupt NVM IC1002 24C02; replace with empty memchip & set up customer & service mode settings - usually caused by noisy 5v line; - replace D710 by 1N4937 - increase the value of C7145 to 2200uF/16V - add a 10nF/50V ceramic capacitor from pin 10 of IC1001 to ground - add a 10nF/50V ceramic capacitor from pin 39 of IC1001 and ground - fit a 8,2V zener diode between pins 4 and 5 of IC1002 (anode to pin 4) - fit a 8,2V zener diode between pins 3 and 6 of IC1002 (anode to pin 3) | 14-09-04 |
| Sharp | DV3750H | CHANGING SDA20561 - ( A528 ) TO SDA20561- ( A535 ) | CHANGE BOTH IC 1001 AND IC1OO2 IC1001 Sharp RH-IX1492BMN2 IC1002 Sharp CH-IX1463CJH6 | 14-09-04 |
| Sharp | DV3750H | Service mode entering | connect a jumper wire between terminals 2 and 6 of the service slot on
the video PWB
- press the MODE button on remote
- SERV will appear on the screen
- remove the jumper wire
- use channel up/down to move between the options
- use volume control buttons to change the data
- use the standby button on remote to store settings
- turn the set OFF with mains to exit service mode | 14-09-04 |