RECEIVERS: E-300B / E-300B-4
TRANSMITTERS: SK-919TD2 / SK-919TD-2A / SK-939TS2
To code, carefully execute the following steps. Obtain the original code from:
Every code has five digits. Each digit corresponds to one combination on PCB:
The 1st digit corresponds to combination "I" on PCB.
The 2nd digit corresponds to combination "II" on PCB.
The 3rd digit corresponds to combination "III" on PCB.
The 4th digit corresponds to combination "IV" on PCB.
The 5th digit corresponds to combination "V" on PCB.
Every combination has two bits (BIT "A" & BIT "B"). Each bit can be programmed for one of three modes ("H" or "L" or "F"). Each combination corresponds to one digit. (Please refer to TABLE 1).
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | |
| A | H | H | H | L | L | L | F | F | F |
| Â | H | L | F | H | L | F | H | L | F |
H: Keep the tracer between the Middle case and the Higher case, but cut the tracer between the Middle case and the Lower case.
L: Keep the tracer between the Middle case and the Lower case, but cut the tracer between the Middle case and the Higher case.
F: Cut both tracers.
Take code 25679 for example. I = 2, II = 5, III = 6, IV =7, V = 9. Cut copper-tracer on PCB as per Fig. 4, Fig. 5, and Fig. 6.
For every copper tracer cut on the transmitter, the corresponding copper tracer must be cut on the receiver.
