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Troubleshooting
PFC units
POWER
FAILURE
CIRCUIT
Check
that
the
POWER FAIL signal is
correct.
POWER
L : Abnormality
FAILURE
Check that the PFC circuit
on/off signals are correct.
BUFFER
TEMP. SW
LAMP
BALLAST units
RL-12V(12V_PFC)
Check +B(RL12)
voltage for PFC
circuits.
Check that the Lamp
ballast on/off signals
are correct.
TEMP. SW
LAMP
assemblies
THERMAL-Switches
for LAMP assemblies
Check that the Lamp moni-
tor signals are correct.
SERIAL PORT IN
SERIAL PORT OUT
R/C JACK
USB
AUDIO OUT
R
L
RESET
(MONO)
Occasionally, this CPU may
malfunction and need to be
reset.
RESET
TEMP. SENSOR
PRESSURE SENSOR
TEMP. SENSOR
TEMP. SENSOR
-57-
System Controls
12VA
SDI IN1
SDI IN2
SDI OUT
AUDIO
CONTROL PORT
R/Pr
G/Y
B/Pb
H/HV
V
R
L
(MONO)
AUDIO
CONTROL PORT
DVI
R
L
(MONO)
HAND OPERATED RESET for CPU
SW3801
RESET
HAND OPERATED RESET
SWITCH
for CPU
SW3801
TEMP.
TEMP. MONITOR
SENSOR
IC1519
PRESSURE
FOR FAN CONTROL
SENSOR
IC4849
ABNORMAL TEMP. DETECT
TEMP.
AND FOR FAN CONTROL
SENSOR
IC5801
TEMP.
ABNORMAL TEMP. DETECT
SENSOR
PTH901
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