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8-1
CIRCUIT DESCRIPTION
Description of power supply circuit operation
1
Lamp power supply (KSX-4000NEVT)
The specifications are outlined below.
• A maximum output of 138A/4kW is obtainable.
• Input comes in a single phase, ranged from 200V to 240V.
The communication system in conjunction with the CPU PWB is of the RS-232C protocol.
A high voltage generator (igniter) needed for the starting of the lamp is installed beside the lamp power
supply.
The igniter output has to be handled with care because a high voltage of a maximum of 40kV is generated
when the lamp is started.
2
Standby power supply (LEB100F-0524)
When the circuit protector is turned ON, the input AC voltage begins to be applied.
The output comes in 5V and 24V. The source voltages are applied to the necessary spots via the PJDIV
PWB.
The power output of 24V is used exclusively for the optional teach panel.
The power output of 5V is fed to the ETHER PWB, CPU PWB, and part of the PJDIV PWB.
3
Main power supply (AC6-2HECB-00)
(AC6-HE2CB-00)
The input AC voltage is applied when the relay of the AC PWB is turned ON.
(The input AC voltage is not applied even though the circuit protector is simply turned ON.)
The output voltages are 3.3V, 5V, 12V, and 24V. The source voltages are applied to the necessary spots via
the PJDIV PWB.
In particular, high voltage accuracy is required for 3.3V and 5V. Adjustments are needed at the time of
replacement of the main power and the PJDIV PWB.
(High voltage accuracy is particularly required for the TI board. If accuracy is not secured, an error will be
caused in the TI board.)
Method of voltage adjustments
At the measuring point TP on the PJDIV WB, connect the vol probe to TP and — probe to FG.
TP8005:
3.3V check TP
Adequate range 3.40V
±
0.05V.
TP8004:
5V check TP
Adequate range 5.05V
±
0.05V.
Based on the values of the above-mentioned voltmeter, adjust the VR of the main power supply to the
adequate range.
In the state of deviation from MM2000B (optional), there is the main power supply on the deep right and there
are four white VRs.
First from the left is a VR for 3.3V
Second from the left is a VR for 5V
Third from the left is a VR for 12V (for reference)
Fourth from the left is a VR for 24V (for reference)
The units of the NC2500S (AC6-HE2CB-00) and the NC1600C (AC6-2HECB-00) come in the same shape.
However, they have to be handled with care because they have different output capacities.
Summary of Contents for DLP CINEMA NC1600C
Page 7: ...NC1600C User s Manual DLP Cinema Projector ...
Page 53: ...47 6 Appendix 6 5 Outline Drawing 700 503 360 990 Units mm ...
Page 63: ... NEC Display Solutions Ltd 2007 Ver 2 07 07 ...
Page 64: ...NC TP6402 NC TP6401 User s Manual Touch Panel Controller NEC Viewtechnology Ltd ...
Page 71: ...G 3 MEMO Important Information ...
Page 94: ... NEC Viewtechnology Ltd 2005 2006 Printed in Japan Ver 2 06 06 ...
Page 95: ...7N8P6692 Printed on recycled paper NC TP6402 NC TP6401 User s Manual ...
Page 382: ...01154041 NC1600C ...