all of the leads and wrap the wire ends around the pins for stability before soldering.
| Solder the 22 ohm resistor from the common point of the inner two resistors near IC2 to pin 10 of IC1. | ( ) |
| Solder the 2.2 kohm resistor from the common point of the two outer resistors near IC2 to pin 11 of IC1. | ( ) |
| Solder the 1 kohm resistor from pin B of the Graphics key to pin 9 of IC1. | ( ) |
| Link IC3 pin 8 to IC3 pin 12 | ( ) |
| Link IC3 pin 6 to IC3 pin 13 | ( ) |
| Link IC3 pin 10 to IC3 pin 11 | ( ) |
| Link IC3 pin 9 to IC1 pin 11 | ( ) |
| Link IC3 pin 11 to SKT pin 7 | ( ) |
| Link GRAPH key, pin A to LEFT key, pin B | ( ) |
| Link LEFT key, pin A to UP key, pin B | ( ) |
| Link UP key, pin A to DOWN key, pin B | ( ) |
| Link DOWN key, pin A to RIGHT key, pin B | ( ) |
| Link RIGHT key, pin A to CH key, pin B | ( ) |
| Link CH key, pin A to ] key, pin B | ( ) |
| Link ] key, pin A to [ key, pin B | ( ) |
| Link [ key, pin A to 4 key, pin A | ( ) |
| Link NL key, pin D to CH key, pin C | ( ) |
| Link CH key, pin D to BS key, pin C | ( ) |
| Link – key, pin D to CTRL key, pin C | ( ) |
| Link CTRL key, pin D to new SHFT key, pin C | ( ) |
| Link new SHFT key, pin D to IC5, pin 1 | ( ) |
| Link X key, pin C to UP key, pin D | ( ) |
| Link UP key, pin C to F key, pin D | ( ) |
| Link Z key, pin C to LEFT key, pin D | ( ) |
| Link LEFT key, pin C to D key, pin D | ( ) |
| Link K key, pin C to DOWN key, pin D | ( ) |
| Link DOWN key, pin C to M key, pin D | ( ) |
| Link L key, pin C to RIGHT key, pin D | ( ) |
| Link RIGHT key, pin C to , key, pin D | ( ) |
| Link Q key, pin C to GRAPH key, pin D | ( ) |
| Link GRAPH key, pin C to 3 key, pin D | ( ) |
| Link O key, pin C to [ key, pin D | ( ) |
| Link [ key, pin C to P key, pin D | ( ) |
| Link R key, pin D to ] key, pin C | ( ) |
| Link ] key, pin D to 4 key, pin C | ( ) |
| Link Z key, pin A to new SHIFT key, pin B | ( ) |
| Link new SHFT key, pin A to S key, pin B | ( ) |
| Link W key, pin B to CTRL key, pin A | ( ) |
| Link CTRL key, pin B to E key, pin A | ( ) |
That’s the job completed, and although there is a fair bit of work involved,
everybody who has done it agrees that it is worth the effort. A partial upgrade would
be possible, using only selected keys, but that would mean sorting out another set of
links. All the difficult and time consuming work is done in these simple to follow
instructions, so . . . what are you waiting for?