Zx Spectrum 1:1 replica, with minor changes ;-) (ok.. i like CLONE word only in the "movie" title)

PREORDER; Deliveries as soon as possible, but  safe for me is half od of December. 

Technical data:

• 4 layer board of 74.17x213.49mm
• DESIGNED TO FIT INTO ORGINAL ZX48/48 PLUS CASE WITHOUT ANY DRILLING/CUTTING/OTHER BARBARITIES
• 2 x Z80 inside   -  FPGA NMOS and real Z80 CMOS 
• Turbo Sound FM ( dual AY 3-8912 + 2 " FM PART" of Yamaha 2203) /fpga/
• Sound Drive / Covox x 4 /fpga/
• Saa1099 chip /fpga/
• mini din 9 audio/RGB out / SEGA 
• TAPE in/out integrated in one jack stereo 
• ULA PLUS / TIMEX GRAPHICS in selected modes
• 9bit RGB output / PURE, PIXEL PERFECT PICTURE/
• max 512kb ram
• power supply  9V ac/dc  min 400mA  suggested, polarity doesn`t matter. 
• 2 x  dedicated clock generators, to obtain perfect timings of 128/48/pentagon modes
• Button: short CLICK - mode chnage, LONG - reset 
• Mode selected with button press and stored after power off
• Power supply and video cable sold separately. Please check related TABS. 

DISCLAIMER !!

pictures show cased version. subject of sale: assembled and tested motherboard only. 

• Z80 3,5 - Orginal Z80
• Z80S 3,5 - Soft Core Z80
• Z80 3,5xx - custom made 28,3576MHZ cristall to obtain perfect 128 timings.
• /7, /14 - max speed in Turbo MODE
• 128C - conteneded memory machine equivalent
• S:  snow effect
• AY : 0 - no AY, 1 - one AY, 2 - Turbo Sound

Hardware layout: (1.5B) - version offered is 1.5C - few minor changes related to fpga pin mapping thus layout may differ a little bit. 

• JP1 - bluetooth adapter connector
• JP2 - mini DIN-9 video output
• JP3 - AVR Kanda / FPGA jtag 
• JP4 - JUMPER - not used yet.. any ideas ?
• JP5 - Power_on jumper - connect to power on device
• JP6, JP7 - keyboard connectors
• JP8 - Bluetooth channel select : left/right
• JP9 - Tape_in/Tape_OUT - tested with mono_jack 3,5mm for tape loading routine
• JP10 - dc jack - power supply - 2.5/5.1mm - 9V preferably and suggested ;-)

Few extras:

• GAMEMODE
  • KRAKEN will switch to game mode only from MODE 1 -  ZX48 orginal 
  • rear button press changes games ( 8games per game_mode).
  • • press  Z + X + G - game mode_1
    • press  Z + X + B - game mode_2

• KEYBOARD RESET - Amiga STYLE
  • press  Z + X + space - hardware reset (no wait)
  • if Your keep pressing space - Your divmc/diivide will re-initialise
  • keyboard reset exits game_modes / diagnorom mode and restarts machine in mode selected

• DIAGNOROM
  • press  Z + X + 0 (zero)  - hardware reset and DIAGNOROM 1.71
  • tact switch will change modes to test all of them (cpu, contention, etc)

• HIDDEN SURPRISE - my first ZX GAME PLAYED EVER on my FIRST ZX MACHINE ;-)
  • press  Z + X + G in Timex mode ;-) 

• TURBO MODE 
  • press  Z + X + T  - Turbo toogle on/off 
  • works inly in mentioned modes.
  • 3 seconds gap between toggling
  • Please, use only whilst software runs - ie. inside game
  • DISCLAIMER: many external devices /divmmc,divide/ will not work properly, when Z80 is in turbo mode. Use it wisely.

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