Sony PFM-42B1 Flat Panel Television User Manual


 
3-13
PFM-42B1, PFM-42B1E
d) FAN
Fan drive circuit:
Indicates the operating status of the fan control circuit.
OK appears when the fan control circuit is operating
normally.
NG appears when the fan control circuit is defective.
P/S BLOCK TOP : Power supply block
P/S BLOCK MID : Left side of the power supply
block
P/S BLOCK LOW L : Lower left side of the power
supply block
P/S BLOCK LOW R : Lower right side of the
power supply block
DD CON SIDE : Lower left side
I/O BLOCK SIDE :Lower right side
e) OTHERS
EEP ROM ID :ID code error
EEP ROM SAVE :Data write error
EEP ROM LOAD :Data read error
EEP ROM ACK :Defective
PW164 ACK :Communication error with scan
converter
RTC INITIALIZE :Time data initializatioin due to
abnormal register value
RTC BATTTERY :Low backup voltage warning
RTC XTAL : Warning due to stoppage of
crystal oscillator for watch
FAN
DRIVE CIRCUIT
• B BOARD
• P/S BLOCK TOP
• P/S BLOCK MID
• P/S BLOCK LOW L
• P/S BLOCK LOW R
• DD CON SIDE
• I/O BLOCK SIDE
: OK
: OK
: OK
: OK
: OK
: OK
: OK
: OK
SOFTWARE VERSION
MAIN CPU
SCAN CONVERTER
: Ver. 1.00
: Ver. 1.00
System controller
Scan converter
f) SOFTWARE VERSION
Version of each software is displayed.
System controller :
Version of the main microprocessor is displayed.
Scan converter :
Version of the scan converter (IC207) is displayed.
g) TEST FUNCTION
This is the test function.
..
..
. Fan operation check only
When the FAN DRIVE is changed from AUTO to
MANUAL, and ENTER is pressed, the DRIVE DATA
indication changes to cyan. In this setup, the drive
register value can be manually modified. When the
drive register value is changed, the pulse width of the
PWM signal in the fan voltage control PWM circuit is
changed accordingly.
Fans can be checked whether they operate normally or
not by comparing the register value and the actual
drive voltage, and by comparing the actual drive
voltage and the actual operations of the fans.
Variable range of the drive register value :
00000 to 16383
..
..
. Blue only
When Blue only is selected, all of the R, G and B colors
become the blue data.
TEST FUNCTION
FAN DRIVE
BLUE ONLY
Fan operation
check only
Blue only
FAN DRIVE
DRIVE DATA
DRIVE VOLTAGE
: AUTO
: 10783
: 08.9 [V]
Drive register data
Actual drive voltage
OTHERS
EEPROM ID
EEPROM SAVE
EEPROM LOAD
EEPROM ACK
PW164 ACK
RTC INITIALIZE
RTC BATTERY
RTC XTAL
: OK
: OK
: OK
: OK
: OK
: OK
: OK
: OK