Barco SilverWriter 800 - Description of the Boards + Adjustments

Field Service Manual December 2003
Page 21 of 276
Description of the boards + adjustments
• MACBPL: Backplane Maccon
• Power supplies:
-PK230: Philips PE4136/01
-PK400(comut)  40 V
• COMUT: Linear motor windings commutation
-Resistance RB32 cutting if comut is Version 6
• FEEDER: Film loading subsystem
-Adjustment of MOT1(150mV)
-Jumper positions.All jumpers installed except 5 and 6 for V4.x
-Jumper positions.All jumpers installed except 3 and 4 for V5.x
• MACCON: Machine controler
-Linear motor & solid state relays control
-Clock subsystem and shaft encoder
Freq: Maccon [freq,ampl] I²C
-Software + parameters
-PB1
PB1 → Adjustment procedure for replacing two Maccons.
LTL > srchidx
LTL > 22 gpar skipa
LTL > shinit shopen
LTL > 4 oneon
LTL > 4 xxxx sfreq ; xxxx is freq out of M-table for beam 4
LTL > 4 600 samp
LTL > 0 1 adcpot ;not necessary from maccon 2.5
LTL > do rdadc . 1e6 wait tilkey ; put new maccon on same
value.
LTL > chrtid
On the PCB:
• There must be one jumper installed (on JJ3: pin2 and pin3).Closed at the
backplane.
• On Pin Header JI2 the linear measuring scale have to be connected.
• Pin Header JH4 are used for testpins.
• Potentiometer PB1 is used for the ADC. (LTL> 0 [0][1] ADCPOT)
Potentiometer PB2 is spare. (LTL> 1 [0][1] ADCPOT) It can be used for
future development.
• The 512KB flash memory fits in an IC-socket.It contains the boot ROM
code and the machine parameters.
• The 2MB flash memory contains the BIST software and the LTL software.
• One row are the even pins, the other road are the odd pins.