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General composition
The R7633705 is the part number of the complete unit. This unit contains all necessary electronic circuits to work as an independent
power supply unit for the Xenon lamp. This includes its own low voltage SMPS for the internal circuits. On exception: the built in
microprocessor gets its supply via connector J619 from the external projector SMPS module.
It is composed of two boards:
R7632105 LPS-X Processor
R7632113 LPS-X In/Out
Visual indications LEDs
LAMP_ON
(Green LED)
LVPS_OK
(Yellow LED)
PFC_OK
(Green LED)
LPS_OK
(Green LED)
ERROR (Red
LED)
R5976820 SLM R12+ PERFORMER 08/03/2005
Functionality on board
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Functionality on board
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comes ON when the LPS provides power to the lamp.
On
Mains volage above 85 Vac and internal low power supply is OK. The module is ready for
lamp start up.
Off
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Mains voltage not present or,
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Fuse F100 in LPS module has blown up or,
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internal low power supply is NOK
is ON when the PFC is switches On and functions correctly.
is on when the LPS is switched On and functions correctly.
in case of an error detection, this LED comes On.
Note: if the Red LED is ON, then the PFC nor the LPS can be started up.
Power Factor Correction (PFC)
Primary circuits of the LPS
Feedback circuits
I²C Interface circuits.
µ-processor control of the PFC and LPS and its protections.
EMC filter with inrush limiter and bridge rectifier.
Internal Stand-By power supply
Secondary circuits of the LPS.
Lamp_voltage_sense.
Lamp_current_sense.
Boost voltage generator.
Fan Control
15. Lamp Power Supply R7633705
103
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