RWAP Software

Hello again. First of all thanks for sending me the eeprom. Arrived yesterday at the eeprom memory, I have changed the "divide +", I have loaded the firmware selector and have it tested. Unfortunately it does exactly the same with the new eeprom. This has since changed the battery, the GALs, and EEP...

Actually the software (fatware, DEMFIR etc) does not work in the +3, only by working residos RAM. I think the easiest is to change the eeprom as it is in socket. How I can I get in touch with you to get the EEPROM, and under what conditions a private email to give you my address?

thanks.

After a few months without touching the interface divided + and after changing the GAL that you sold me, I've been testing, and I have not come to any clear conclusion. Either the EEPROM is corrupted or some other chip apart from the GAL is wrong. What I have seen is that no EEPROM resident software...

Hello. I changed the 3 GALs that you sent me. The "divide +" now at least do something more than before. But it does not work. There must be some other bad component. Not sure if it 29F040 firmware, RAM, a diode or other SMD component. I am able to change the SMD components, but do not want to chang...

hello. As I mentioned in the previous post, the signal fecuencia DC DC converter is correct, 114KHz, I do not know that this signal can be important on the "divide +" while tensions have needs. On the other hand I have found that the Zilog Z80, no signal M1, and that is why the "divide" does not wor...

I tried to measure the frequency between C46 + terminal and ground with an oscilloscope (seeking 114Khz expected) and it has been impossible because the signal is not stable; fluctuates a lot, it looks more like a PWM signal to a fixed . How should this sign? If not well I should replace the electro...

Hello. When you say that no M1 line, you mean that the microprocessor does it internally? PCBs that "issue4" if coming from the socket properly z80 to the expansion connector. I have verified that both microprocessors are genuine Zilog Z80 (the trouble is that no socket). I've done other checks, as ...

Hello. Now I have time, I decided to test the interface "divide +", which was bought second hand through ebay (sn: Z-19). I have 3 Spectrums and after checking that do not work as expected, I want to exhibit different behaviors. First in a rubber Spectrum 48k 4B issue, "the divide plus" goes into an...