JVC Model 200 - Manual (Page 22)

Chapter 2---System Description
2.3.2 Power Supplies
The Model 200 includes three power supply assemblies.
• Low Voltage Power Supply
• Arc Lamp Power Supply
• High Voltage Power Supply
Low Voltage Power Supply (LVPS)
P75
P76
1
3
5
1-7
8
9
10
11
12
13
14
15
16
17
18
To P8 on
Backplane
AC
INPUT
Line
Earth
Neutral
LV Ret
/LV_ENA
/LV_OK
+24v Fans
+5.1v STBY
+5.1v
+6.2v
+15V
-15v
+80V
/COVER_ON
/FAN_ENA
Figure 2-3. LVPS Input/Output Diagram
Main Functions:
• Provide all the low voltages needed by the projector.
• Provide standby power when the projector is OFF.
• Provide power for all cooling fans.
Inputs:
The Low Voltage Power Supply receives AC input power directly
from the power source. The input range is from 100 VAC to 240
VAC, at 50 or 60 Hz.
/LV_ENA: Enabling signal from the System Controller Enables the
LVPS when the System Controller receives a Power On
command.
/FAN_ENA: From System Controller. Enables the +24v standby
voltage for the projector fans.
/COVER_ON: Cover interlock signal. Indicates both covers in
place. Enables the non-standby outputs.
Outputs:
+ 5.1VDC Main
+ 5.1VDC Standby
+ 6.2VDC
± 15VDC
2-8 Model 200 Service Manual