If you go into the menu and the convergence doesn't move, you must repair the convergence circuit. The way you do this is by: First, disconnect power and remove lower rear cover. Next, with a powerful light and a good pair of eyes look very closely at the circuit board where the STK392-040 convergence chips are located. You will need to change these i.c.chips using soldering/desoldering equip. Also, you need to have an ohmmeter to test the 1.5, 2.7 and 3.9 ohm resistors which commonly change in value or burn up. Change any that don't check very close to appropriate value. Finally, after changing all these parts. Make sure you clear any confused data from the eeprom by entering the service code (mute,1 8 2 power)at time of turn on after completing repair. One other note; this set is known to have had problems with coolant leaking onto the circuit boards. So make darn sure that there aren't any drips coming from the tubes. If you call a repairman, expect a 250-350 u.s. dollar repair. Good value considering the time it took to get experience on these units. Good luck Russmann.
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