Operating instructions

http://www.coef.net - info@coef.it Pag. 13
MAIN BOARD CONNECTIONS
C65
U11 VIPER SWITCHING
U4 MICRO SLAVE MOTOR
CCSLAVEXX
U5 U6 U7 U8 U9 L6219
MOTOR DRIVER
LED +5V
U3 MICRO MASTER
MOTOR CC3DRVXX
LED +5V OPTO DMX
U13 78M05
OPTO DMX
TO DISPLAY
PCB PAN IP
U10 MICRO PWM
FAN CONTROLLER
U12 7805
+5V
MOT5
CYAN
MOT4
YELLOW
MOT3
TO LAMP BOX, CYM BOX
SAFETY SWITCH
TO HEAD THERMAL
SENSOR AND SWITCH
MOT2
DIMMER
MOT1
FOCUS
D3
TO HEAD FAN
LED +28V
TO BASE FAN
VRI VARISTOR 275V
(OVERVOLTAGE PROTECTION)
D1 OFF LINE BRIDGE
RECTIFIER
TO PCB
CC250
MAIN POWER
INPUT
TO CC250
LED
320VDC
• POWER SUPPLY +30V Led On, +5V Led, +320V Led, +5V DMX Led
• DMX signal
Led flashing: the DMX signal is operating on the board
Led off: check the U1 (6N137) and the DMX connecting cable (from PCB PAN IP)
• STEPPER MOTOR channel not working: (i.e. YELLOW):
1) Switch off the fixture and disconnect the YELLOW and CYAN cables
2) Connect the YELLOW cable on the CYAN connector
3) Switch on the fixture:
3a) If the YELLOW motor works normally it is necessary to replace the U6 (L6219)
3b) If the motor is still not working check with extreme attention the motor and the interconnecting circuits (cables and connectors). To
check the cables and the motors you can measure the resistance as follows: between PIN 1 and PIN21 (on IC U6)r=~18ohm; between PIN 2
and PIN5 (on IC U6) r=~18ohm
• If the led +5V OPTODMX is off:
1) Disconnect TO DISPLAY PCB PAN IP connector; if the led is on check PCB PAN IP
2) Check U13 (78M05), L3, D6
• If the led +5V is off:
1) Disconnect TO DISPLAY PCB PAN IP connector; if the led is on check PCB PAN IP
2) Check D4, L2, U12
•If the led +28V is off:
1) Check if the led +320V is on, if it is ok:
1a) Check if U11 is in thermal drift (ATTENTION on the heat dissipator there is dangerous tension!!!!)
1b) Check if U5, U6, U7, U8, U9 are in short-circuit. Switch off the fixture. Remove all the chips from the socket.
Switch on the fixture: if the led is on, insert the chips one by one in the sockets to find out which is in short-circuit.
1c) Check D3
1d) If all the operations described above have not given any positive result, change U11
2) If the led +28V is off together with the led +320V
2a) Check the MAIN POWER INPUT where you can measure the working voltage
2b) Check the main fuse, if it is blown check VR1 (normally it has a resistance = ¥). If it is in short circuit you must change it.
2c) Check D1 (Bridge Rectifier), if it is ok check C65.
2d) If the fuse is still blown, change U11