smd.lotharek.pl - Professional electronics` assembly on a production line with the capacity of up to 18000 components per hour, based on Neoden / Yamaha equipment                                                                                                                                  

smd.lotharek.pl - Professional electronics` assembly on a production line with the capacity of up to 18000 components per hour, based on Neoden / Yamaha equipment                                                                                                                                  

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ZX Spectrum / Timex / Compatible

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AY INTERNAL

AY INTERNAL

Discontinued

Like Ask Tell

 

AY INTERNAL  interface for ZX and compatible

 

Main fetaures: 

  • AY / Yamaha sound generator running at exact speed of 1,75 Mhz (new programmable frequency generator from EPSON (SG8002CA+ PHB)
  • Solderless - just plug and play ( only if Yoru cpu is socketed)
  • Audio stereo out 
  • ZX sound from ULA mixing on both channels

 

Upgrade consists of two pcbs, connected with flat cable approx 20cm long

  • CPU ADAPTER (click at image to see it full screen)

  • AY_ADAPTER (click at image to see it full screen)

 

 

To do:

  • Remove cpu from socket
  • Insert cpu adapter ( ARROW INDICATES pin no 1)
  • Insert CPU back to cpu adapter
  • Connect CPU adaper with 38910 ADAPTER  ( ARROW INDICATES pin no 1)
  • Insert AY CHIP into  38910 ADAPTER
  • Fit 38910 ADAPTER inside ZX, connect AUDIO OUT  ( 4 pins- LEFT, GND, GND, RIGHT) and ULA sound

 

READY :-)

 

 

 

 

AY CHIP NOT INCLUDED. You may get it HERE

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