DOWNLOAD Sharp PN-U553 (serv.man2) Service Manual ↓ Size: 5.49 MB | Pages: 99 in PDF or view online for FREE

Model
PN-U553 (serv.man2)
Pages
99
Size
5.49 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor
File
pn-u553-sm2.pdf
Date

Sharp PN-U553 (serv.man2) Service Manual ▷ View online

PN-U SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4 - 5 
 
 
Input Mode 
Signal Type 
Input Signal Level 
(Adjust to standard value) 
Signal Timing 
Input Image 
VIDEO 
Do not need to enter a signal 
3) Display SERVICE MENU 2 
4) Select "CALIBRATION" with [VOL+(
↑)][VOL-(↓)] keys and press [ENTER] key.  CALIBRATION screen appears. 
DSUB ADC ADJUST
ADC B-GAIN
ADC G-GAIN
ADC R-GAIN
ADC R-OFFSET
ADC B-OFFSET
ADC G-OFFSET
AUTO
=>
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<                                         >
132
138
133
91
89
95
OK…[ENTER]    BACK…[RETURN]
YPBPR ADC ADJUST
ADC B-GAIN
ADC G-GAIN
ADC R-GAIN
ADC R-OFFSET
ADC B-OFFSET
ADC G-OFFSET
AUTO
<                                         >
<                                         >
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<                                         >
102
93
99
64
93
64
OK…[ENTER]    BACK…[RETURN]
=>
VIDEO ADC ADJUST
COLORS
Y-OFFSET
Y-GAIN
AUTO
=>
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<                                         >
<                                         >
91
40
128
OK…[ENTER]    BACK…[RETURN]
CALIBRATION SCREEN D-SUB MODE
CALIBRATION SCREEN COMPONENT MODE
CALIBRATION SCREEN WHEN AVS VIDEO MODE
 
5) Select "AUTO CALIBRATION" with [VOL+(
↑)][VOL-(↓)] keys.  Press [ENTER] key. 
Calibration is performed and stored in EEPROM. 
The adjustment result is listed for items of each item. 
6) Select "OK" with [VOL+(
↑)][VOL-(↓)] keys.    Press [RETURN] key. 
CALIBRATION screen is closed. 
PN-U SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4 - 6 
 
3.
 
FACTORY RESET                                                           
         
 
Resets the user adjustment value, USAGE TIME and the Operation log to the factory preset values. 
<CAUTION> 
*When resetting is made, the operation logs are also deleted. If necessary, save the operation logs before resetting.     
1) Display the SERVICE MENU 2. 
2) Select "FACTORY RESET" with [VOL+ (
)], [VOL- ()] button, and press [ENTER] button. 
3) Select "ON" with [BRIGHT- (
)], [BRIGHT+ ()] buttons, and press [ENTER] button. "RESETTING" is displayed. After completion of 
initialization, the unit is booted in the DisplayPort mode. 
4) Turn the main power switch off and then back on. 
<MEMO> 
ITEM RESET 
ITEMS 
FACTORY RESET 
Used to reset the user adjustment values, the usage time, and the operation logs to the factory setting. 
(It includes USAGE TIME, Operation log, and Error log) 
ALL RESET 
Used to reset the user adjustment values, the usage time, and the operation logs to the factory setting. 
(It excepts USAGE TIME, Operation log and Error log) 
PN-U SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4 - 7 
 
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- ()] 
buttons, and press [ENTER] button. "HARDWARE CHECK" 
menu is displayed. 
 
3) The watch result and the current measurement value of the   
hardware are displayed. 
Watch result 
"OK" or "NG" is displayed. 
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. 
Measurement 
value 
The measurement value at the time   
when HARDWARE CHECK menu is   
displayed 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 
Default value 
SYSTEM POWER1 
LCD 12V 
1554- 2331 
SYSTEM POWER2 
DCIN 
1201- 1801 
SYSTEM POWER3 
MAIN 12V 
1554 - 2331 
SYSTEM POWER4 
BU 5V 
1493 - 2239 
BAVKLIGHT LED 
MODULE 
TOUCH SENSOR 
*K322B only 
TOUCH SENSOR 
 
4) For the countermeasures against NG positions. 
3 Refer to page 7 - 9    "11. THE RED LED BLINKS". 
> Refer to page 7 - 9    "12. THE LED LIGHTS UP IN ORDER 
OF RED 3 GREEN (TEMPERATURE ERROR)". 
5) Press [INPUT/RETURN] button to return to the previous screen, 
and terminate the operation. 
5 – 2. METHOD2 
1) Send "HTST0000" that is 232C command. 
2) Result is returned. 
 
PN-U SERVICE MENU/VARIOUS SETTING TOOL OPERATING PROCEDURES 4 - 8 
 
5 – 3. METHOD3 
Check with the "STATUS[XXXX]" number. 
1) When an error occurs, four-digit figures are displayed after the 
message of "STATUS" on the left lower section of the screen. 
They are assigned as follows. 
 
 
Bit 
PN-K321 
0 SYSTEM 
POWER1 
1 SYSTEM 
POWER2 
2 SYSTEM 
POWER3 
3 SYSTEM 
POWER4 
4 Reserved 
5 BACKLIGHT 
6 – 10 
Reserved 
11 Over 
current 
12 AC_DET 
abnormality 
13 Reserved 
14 
Temperature sensor abnormality 
15 Temperature 
abnormality 
 
Bit 
PN-K322B 
0 SYSTEM 
POWER1 
1 SYSTEM 
POWER2 
2 SYSTEM 
POWER3 
3 SYSTEM 
POWER4 
4 Reserved 
5 BACKLIGHT 
6 TOUCH 
SENSOR 
7 – 10 
Reserved 
11 Over 
current 
12 AC_DET 
abnormality 
13 Reserved 
14 
Temperature sensor abnormality 
15 Temperature 
abnormality 
5 – 4. METHOD4 
Check with the item of “STATUS” on the “Product information 
(INFORMATION)” screen. 
When [Other] menu is pressed, the “INFORMATION” screen is 
displayed. Check with the “STATUS” item on the screen.   
 
 
It takes some time necessary for judgment of a temperature   
abnormality and a hardware abnormality as shown below: 
*Temperature abnormality:   
Min. 2 minutes (Exceeding the threshold value 3 times   
continuously in the interval of 1 minute). 
*Hardware abnormality:   
Min. 18 seconds (Exceeding the threshold value 4 times   
continuously in the interval of 6 seconds). 
Though, therefore, the threshold value is exceeded on the   
"HARDWARE CHECK" screen of SERVICE MANU 2 or in the   
periodic send/test mail, "OK" may be displayed. 
In addition, when "NG" judgment is made once, "NG" state is   
maintained until the power is turned OFF/ON. Even if, therefore,   
the target value is reduced below the threshold value, the   
judgment may be "NG" with a normal value. 
A Hardware 
monitoring 
result 
The error detection 
position is displayed with 
the same number as the 
" 4 - 3 METHOD 3". 
The number of controls   
of the backlight when a   
temperature abnormality   
occurs 
Displayed in 2 digits.   
For more than 99 times, 
"99" is displayed. 
Accumulated control time   
of the backlight when a   
temperature abnormality   
occurs 
Displayed in 2 digits.   
For more than 99 hours, 
"99" is displayed. 
Number of shifts to the   
power standby state   
when a temperature   
abnormality occurs 
Displayed in 2 digits.   
For more than 99 times, 
"99" is displayed. 
Reserved  
(Not used for this time) 
 
Reserved  
(Not used for this time) 
 
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