Hardware Check - Sharp PN-L803C Service Manual

5. HARDWARE CHECK

This machine is provided with the function to watch for any abnormality in the hardware.
*When an error occurs in the hardware (internal power voltage), the message of STATUS [XXXX] is displayed.
The power lamp flashes in red. (It differs depending on the setting of " STATUS ALERT" of the FUNCTION.)
*When only a temperature error occurs, the message of "TEMPERATURE" is displayed on the loft lower section of the screen.
The power lamps of red and green flash alternatively. (It differs depending on the setting of "TEMPERATURE ALERT" of the FUNCTION.)
*The error position can be checked. There are following four methods.
5 – 1. METHOD1
1) SERVICE MENU 2 is displayed.
2) Select "HARDWARE CHECK" with [VOL + ()], [VOL - (↓)] keys,
and press [ENTER] key. "HARDWARE CHECK" menu is
displayed.
SERVICE1
SERVICE MENU2
SERVICE2
AGING
CALIBRATION
SERVICE3
FACTORY RESET
MODEL TYPE
HARDWARE CHECK
WHITE BALANCE SETTING
EDID UPDATE
GAMMA SETTING
3) The watch result and the current measurement value of the
hardware are displayed.
"OK" or "NG" is displayed.
Watch result
After turning ON the power, if an
abnormality occurs to be "NG" once, the
"NG" state is kept until the main power is
turned OFF.
The measurement value at the time is
Measurement
displayed when HARDWARE CHECK menu
value
is displayed.
The measurement value at the time when
an abnormality occurred is saved in the log
data.
The measurement value of the internal voltage displayed is the
A/D conversion value.
The normal range is as shown below.
Item
SYSTEM POWER1
SYSTEM POWER2
SYSTEM POWER3
SYSTEM POWER4
SYSTEM POWER5
BACKLIGHT
TOUCH PANEL
PN-L803C/80TC3 SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4- 5
1/2
=>
=>
XX
=>
=>
=>
=>
END [RETURN]
OK [ENTER]
Default value
(OFF) 0 - 255
TP 5V 155 - 230
SP 13V 90 - 145
CTL 13.5V 92 - 145
12V2 130 – 190
LED MODULE
TOUCH PANEL
MODULE
4) For the countermeasures against NG positions.
-> Refer to page "8. THE RED LED FLASHES".
-> Refer to page "9. THE LED LIGHTS UP IN ORDER OF
RED .
5) Press [MENU] key to return to the previous screen, and
terminate the operation.
5 – 2. METHOD2
1) Send "HTST0000" command.
2) Result is returned.
(MEMO)
- Since this model does not monitor SYSTEM POWER3, "OFF" or
" - " is displayed.
0
0