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Electronic appliance repair tips database - TV (LCD,TFT,Plasma,Digital), Monitor, VCR, DVD recorder and player, Digital camera, Audio equipment, Microwave ovens, Phone systems, Computer repair

Make	Model	Problem	Solution	Date

Found: 6
Grundig	ST 70-755	Grundig ST 70-755 TOP/LOG. Picture quality is great and TV turns on fine and displays picture fine for 1 - 2 hours. Then screen starts quick, short burts of flicker / flashes. (Picture can always be seen durring these flickers but is very anoying and ob	Check electroylitics round frame output i.c. some of them are low in capacity	24-06-05
Grundig	ST70-400	Int start up & no R/C - no st/by light	R617 10k7 & R616 6k8 both 7w dry joints	14-09-04

Grundig	ST70-775DPL	No pic via tuner or scart - unable to access menus	Re - format eeprom ; On this set you do this by holding down P- as you switch on. This loads the emergency data set. If as on mine this appears to have no effect the set is probably also locked in hotel mode. To rectify this hold the i button on the remote whilst switching on. This will allow access to a limited service menu. Use the arrow keys to scroll down to Hotel Mode and switch it off, then scroll to the bottom of the menu and select end with mem and push ok. Switch off the set and power back up whilst holding the P- key and the eeprom will reformat. Switch off then back on again and select the menu system by pushing i then ok. Scroll down to service menu and push ok, on the next menu scroll down to service code and enter 8500. This brings up the full service menu and all adjustments can be made from there. Note the hardest thing to set is the afc which you select on the menu but adjust with coil 3025 inside the set. Basically if there is a directional arrow on the service menu under the afc setting you have to rotate the coil in that direction until the arrow disappears. In practice you have to go through this procedure but remembering to memorise all the settings (by selecting end with mem) about 4 times, switching off the set each time.	14-09-04
Grundig	ST70755/9DPL	No sound & o/p IC getting hot	Caused by momentary contacts on mains sw perm making	14-09-04
Grundig	T70-440	Bright raster with fb lines	TEA5101A RGB o/p chip on crt base & 10R in its supply	14-09-04
NEI	ART701	Field bounce when heated	Height pot P302 int	14-09-04

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