![[Upgrade diagram]](large/29.gif)
PCB Assembly #1540048 (Schematic 1540049) requires an upgrade to the reset circuit. The upgrade consists of:
1) COMPONENT CHANGES:
| R25 | Change To | 6.8K ohm, | 1/4 W, +/-5% |
| R57 | Add | 220 ohm, | 1/4 W, +/-5% |
| R58 | Add | 2K ohm, | 1/4 W, +/-5% |
2) CUT circuit trace near UA1 (See diagram)
3) INSTALL JUMPER WIRES:
| BETWEEN: | UA1 pin 8 and UB1 pin 5 |
| UA1 pin 9 and CR4 Anode | |
| UB1 pin 6 and UD3 pin 5 on BACK of board |
4) CUT circuit trace between CR7 Anode and UD3 pin 5 on BACK of board.