Homebrew PCBs

Hi Marc,
The printer hasn't  seen life after mod... I haven't made connections to 
the board yet, as I'd hoped for some validation first so as not to need 
rework.
Mark Lerman provided me with a pre-programmed board, so I haven't been 
involved with firmware.
Good luck with your endeavor.
Thanks,
Roger

On 4/4/2015 1:02 AM, Marc OLANIE Marc.olanie@... [Homebrew_PCBs] 
wrote:
>
> Hi Roger
>
> I\u2019 approximately 300 miles away from my printer :- (( cannot check the 
> wiring again for a while. I won\u2019t be able to hack again my Lexmark 
> before 2 or 3 weeks (well\u2026 If my boss lets me go :- / )
>
> Did you also check the different \u201csoftware switches\u201d when burning your 
> firmware in your Attiny ? I think mine was faulty.
>
> Without a correct timing, would the laser be running ? I really don\u2019t 
> know. Only Mark could answer these questions.
>
> 73\u2019
>
> Marc
>
> *De :*Homebrew_PCBs@yahoogroups.com 
> [mailto:Homebrew_PCBs@yahoogroups.com]
> *Envoy� :* samedi 4 avril 2015 06:01
> *� :* Homebrew_PCBs@yahoogroups.com
> *Objet :* Re: [Homebrew_PCBs] Re: DLP MCU version troubleshooting, 
> help needed
>
> Hi Marc & Mark,
> I saw Marc's question marks on the same couple of wires I need some 
> clarification on. I haven't seen any resolution yet, and wonder if 
> these wires should  be cut back to the connectors, left floating, or 
> something else I am missing?
> Below is my hookup chart. Is there anything that is incorrect, or 
> needs adding?
>
> *MCU Board Hookup*
>
> *Device*
>
> 	
>
> *Function*
>
> 	
>
> *Conn*
>
> 	
>
> *Color*
>
> 	
>
> *ATtiny13 MCU*
>
> 	
>
> *Function*
>
> *Operator Panel*
>
> 	
>
> *3.3V*
>
> 	
>
> *J5-5*
>
> 	
>
> *BL*
>
> 	
>
> *2*
>
> 	
>
> *Pad no.\u2019s = Pin no.\u2019s*
>
> 	
>
> *PB3*
>
> *Cover Open*
>
> *Switch Wires*
>
> 	
>
> *5V*
>
> 	
>
> *J7-1*
>
> 	
>
> *YE*
>
> 	
>
> *8*
>
> 	
>
> *VCC*
>
> *5V*
>
> 	
>
> *J7-2*
>
> 	
>
> *RD*
>
> *GND*
>
> 	
>
> *J7-3*
>
> 	
>
> *BK*
>
> 	
>
> *4*
>
> 	
>
> *GND*
>
> *New Paper In Sensor*
>
> *(was narrow sensor)*
>
> 	
>
> *0-5V*
>
> 	
>
> *J14-1*
>
> 	
>
> *RD*
>
> 	
>
> *(Splice Sensor wire to J14 wire)*
>
> 	
>
> **
>
> *5V*
>
> 	
>
> *J14-2*
>
> 	
>
> *BL*
>
> 	
>
> *5*
>
> 	
>
> *4.99k to PAD 8 VCC*
>
> 	
>
> *MOSI*
>
> *GND*
>
> 	
>
> *J14-3*
>
> 	
>
> *BK*
>
> 	
>
> *4*
>
> 	
>
> **
>
> 	
>
> *GND*
>
> *Manual Feed*
>
> *Paper Sensor*
>
> 	
>
> *5V (1.1V)*
>
> 	
>
> *J23-1*
>
> 	
>
> *BL*
>
> 	
>
> *N/C*
>
> 	
>
> **
>
> *5V*
>
> 	
>
> *J23-2*
>
> 	
>
> *WT*
>
> 	
>
> *6*
>
> 	
>
> *MISO*
>
> *GND*
>
> 	
>
> *J23-3*
>
> 	
>
> *BK*
>
> 	
>
> *4*
>
> 	
>
> *GND*
>
> *Exit Sensor*
>
> 	
>
> *5V (>0V)*
>
> 	
>
> *J27-4*
>
> 	
>
> *BL*
>
> 	
>
> *N/C*
>
> 	
>
> **
>
> *5V*
>
> 	
>
> *J27-5*
>
> 	
>
> *WT*
>
> 	
>
> *3*
>
> 	
>
> *PB4*
>
> *GND*
>
> 	
>
> *J27-6*
>
> 	
>
> *BK*
>
> 	
>
> *4*
>
> 	
>
> *GND*
>
> Thanks for any assistance,
> Roger
>
> On 2/6/2015 5:46 AM, Marc.olanie@... 
> <mailto:Marc.olanie@...> [Homebrew_PCBs] wrote:
>
>     Hi Mark
>
>     I triple checked all the wiring (see below)
>
>     Next step : I'll try to change the processor board
>
>     Do you have an idea on how to check the laser beam ?
>
>     ------------
>
>     Wiring after mod : check list of connectors
>
>      J4 : intact/untouched
>
>      J5 : intact/untouched (\u201cX\u201d button routed directly with a wire
>     going from front panel to =>pin 2 MCU)
>
>      J100 : intact/untouched
>
>      J7 : To MCU (black => gnd MCU, red => pin8 MCU(Vcc), yellow =>
>     Vcc, shorted to red)
>
>      J8 : intact/untouched
>
>     ----------------
>
>     J9  : intact/untouched
>
>      J10 empty
>
>      J11 empty
>
>     J14 : black =>gnd MCU, white=>pin 7 MCU, red =>NPIS Vcc
>
>      J12 : shunt with resistor
>
>     ---------------
>
>     J502 : intact/untouched
>
>      J17 : intact/untouched
>
>      J501 : intact/untouched
>
>     ---------------
>
>     J28 : empty (unused tray selector)
>
>      J27 : black=>gnd MCU white=>pin 3 MCU, Red-white-black : cut,
>     */blue=NC ????/*
>
>      J26 : empty
>
>      J25 : intact/untouched
>
>      J23 : black=> white=> pin 6 MCU, */blue=NC ????/*
>
>     ---------------
>
>     check list of NPIS :
>
>     NPIS=> MCU Pin5
>
>     NPIS =>Vcc J14
>
>     NPIS => MCU gnd
>
>     ---------------
>
>     check list of connectors MCU :
>
>     Pin 1 =>ISP reset
>
>     Pin 2 =>X button
>
>     Pin3 => J27-5
>
>     Pin4 => GND
>
>     Pin5 => NPIS collector
>
>     Pin6 => J23- white
>
>     Pin7 => J14-white (middle)
>
>     Pin8 => Vcc
>
>     Other connectors are empty or not even soldered.
>
>     Marc
>
> -- 
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> 

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