Barco SLM R12 Plus, Service Manual, Page: 107 / 281

15. Lamp Power Supply R7633705
Connectors Primary side
J609
Through this connector the module is connected with the SMPS of the projector. The SMPS is supplied with
the +380VM output of the PFC.
In standby mode: Rectified mains volatge
When PFC is active: +380V DC or +280V DC nominal
+380VM
The output is fused with F340 (1.25A) on the R7632103. The maximum
power that can be taken from that line is 250W in standby and 450W in the
operational mode.
V-SIN
When the mains voltage disappears, this V_SIN also disappears but very
quickly, in fact, much faster than any other supply line. The SMPS gets from
this V_SIN a kind of warning that the mains supply is switched off and the
processor on the SMPS can take all necessary measures to switch off the
projector modules in the correct sequence. The DMD engine also requires a
signal that informs the formatter board on the abrupt disappearance of the
mains supply (short or relative short power supply interruptions).
J20/J21
MAINS _1/2 Mains_1 is the mains line input fused by a 20A (F100) located in the
connector. Mains_2 is the return (Max. is 274V AC.).
Connectors Secondary side
J620
As this is a looped connector, this connector has the same pin layout as the CONTROL_IN connector (J619).
NOT_ERROR MAINS
This is an open collector output from the SMPS module. In the event of a fault
condition detected on the projector SMPS, this line is dropped to a low level,
hereby stopping the PFC and LPS.
J23
+LAMP_OUT Positive output (95Vdc max) for the lamp.
J24
- LAMP_OUT Negative output (return) for the lamp (approx. 0V)
15.3 Interconnection Diagrams
Mains (Power) Circuit
Power
Magnetic circuit breaker
MAINS Input
MAINS Filter
J21
J20
Image 15-6
Mains power circuit
R5976820 SLM R12+ PERFORMER 08/03/2005 105