Sanyo PLC-XF45 - VIDEO INPUT; Selecting Video Input Sources

LAMP BALLAST-ON/OFF
PFC-ON/OFF
PRESSURE
SENSOR
TEMP.
SENSOR
CIRCUIT
POWER
FAILURE
LAMP-MONITOR
LAMP
BALLAST units
LAMP
assemblies
PFC units
TEMP.
SENSOR
TEMP. SW
THERMAL-Switches
for LAMP assemblies
TEMP. SW
RL-12V
+B
D0 ~ D15
TEMP.
SENSOR
RESET
SWITCH
HAND OPERATED RESET
for CPU SW3801
FOR FAN CONTROL
IC5801
ABNORMAL TEMP. DETECT
IC2541
FOR FAN CONTROL
IC886
ABNORMAL TEMP. DETECT
PTH901
The PTH901 does not exist
in some particular models.
IIC-SCL & SDA
IIC-SCL & SDA
RESET
TEMP. SENSOR
PRESSURE SENSOR
DATA BUS
BUFFER
POWER
FAILURE
-35-
NOTE :
■ The lamp-ballast-unit controls the power supply
to the lamp to maintain and stabilize the arc dis-
charge, keeping illumination at a constant level.
■ If the lamp does not light or is extinguished sud-
denly, the "Hi" signal is fed to I/O expander and
CPU. (Lamp monitor signal)
Refer to next page
CHECK !
CHECK !
CHECK !