PDP-434CMX
105
5
6
7
8
5
6
7
8
C
D
F
A
B
E
7.1.3 PROCESSING AT THE TIME OF ABNORMALITIES
7.1.4 TEMPERATURE COMPENSATION OF DRIVE SYSTEM VOLTAGE
Fan and temperature sensor
SENSOR
TEMP1
SENSOR ASSY
DIGITAL VIDEO ASSY
MODULE
UCOM
FAN
DRIVE
FAN
92
SENSOR
SENSOR
TEMP3
TEMP2
FAN0
FAN_NG
SP TERMINAL L ASSY
RGB ASSY
MAIN
UCOM
50
51
49
31
Port
Name
Shutdown
Name
Assign
Control
Microcomputer
Active
Remarks
FAN_NG FAN
31
Main
Shutdown when
the signal becomes
high
Disconnection of the fan connector or
abnormality in operation of the fan detected
TEMP1
Unit under high temperature
92
Module
Shutdown when
the set value is
exceeded
Monitoring high temperature of the panel,
Drive system temperature compensation
TEMP2
Unit under high temperature
51
Main
Monitoring high temperature of boards
TEMP3
Unit under high temperature
50
Main
Monitoring ambient temperature
Circuitry
Port monitoring specifications
Function:
To control the DRIVE-system voltage according to the temperature (Temperature compensation functions such that the voltage
is lowered on the lower-temperature side and the voltage becomes higher on the higher-temperature side.)
Purpose:
For improving the yield by compensating for the temperature characteristics of the panel
Note:
• Temperature compensation is performed only for the VSUS voltage, and not for the VOFS voltage. This compensation is
controlled by the software.
• Temperature compensation is carried out with the value of TEMP1.