DOWNLOAD Sharp LC-70UD20KN (serv.man4) Service Manual ↓ Size: 3.86 MB | Pages: 94 in PDF or view online for FREE

Model
LC-70UD20KN (serv.man4)
Pages
94
Size
3.86 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-70ud20kn-sm4.pdf
Date

Sharp LC-70UD20KN (serv.man4) Service Manual ▷ View online

57
LC-60UD20
LC-70UD20
6 Software update starts.
Please wait for a while until the bar shows 100%
Note
• 
Do not take out the USB memory device during updating.
7 When all the procedures are complete, the following upgrade success screen shows up.
The new software version can be confi rmed on screen.
After a while, Turn off power and boot-up automaticaly.
Note
•  TV is restarted automaticaly, the AC code need not be pulled out.
8 After boot-up, the following caution shows up.
Select “OK” when if there is no problem.
Software update is completed, please remove the USB memory device.
NOTE
•  Then get the set started and call the process adjustment screen (Top Page) to check the main software version.
•  The Net TV memory, which includes the lock code, passwords, and cookies, may be cleared when the software 
update is carried out.
CAUTION
1) Do not take out and put in the USB fl ash memory during upgrading.
2) Do not turn off the AC power during upgrading.
3) It takes about one minute to the rewriting completion.
Please confi rm the upgrade status on the screen becomes 100%.
4) The AC power supply of the set is waited for about 20 seconds until off
(The AC outlet is pulled out) after the upgrade is completed.
Current version
Update version
xxxxxxxxxxxx
Yes
No
䠰䠲
Software update file is detected
in the USB memory device
start update ?
䠰䠲
 [Information 䡡䡡䡡 Software update 䡡䡡䡡 USB update]
Update version
xxxxxxxxxxxx
75%
䠰䠲
 [Information 䡡䡡䡡 Software update 䡡䡡䡡 USB update]
Now updating
 
Remote control operation is disabled during update process.
 
     Do not unplug AC cord.
䠰䠲
1
Update version
xxxxxxxxxxxx
䠰䠲
 
Software Update is complete.
䠰䠲
 [Information 䡡䡡䡡 Software update 䡡䡡䡡 USB update]
OK
䠰䠲
䠰䠲
System software was 
successfully updated.
Remove the USB memory device.
Update version
EXXXXXXX-2
58
LC-60UD20
LC-70UD20
TROUBLESHOOTING TABLE
1. Failure diagnosis by LED in front of cabinet
2. LED fl ashing specifi cation at the time of the error
Display method
• 
Refer to Table 1.
• 
LED that can be used are only one of the central icon(Emblem Unit). 
This expresses the error situation by combining blinking at low speed and blinking at high speed.
• 
For this model, the blinking pattern displayed fi rst is only a low-speed blinking. 
This expresses a rough content of the error. 
• 
For this model, details are displayed by a high-speed blinking by pushing remote control MENU key.
This expresses details of the error. Details are distinguished by the blinking frequency. 
• 
It doesn’t return to the outline display again (blink at low speed) by pushing the MENU key 
(The toggle is not done). 
Please confi rm “MONITOR ERR CAUSE” of the the adjustment Process mode (1page) ,when the error doesn’t 
reproduce by having returned from the error. 
• 
The process of the upgrade is expressed by the brightness of point LED that smoothness changes. 
• 
The upgrade completion is expressed by the LED brightness that changes in a staircase pattern.
START
Is
theCenterIconlighting
Is
theBacklightlighting?
Check
"[2]
LEDflashingspecificationatthetimeofanerror"
"[3]
TROUBLESHOOTINGTABLE4.Power/BackLight"
Check
PowerͲUnitandACͲcable
Check
"[3]
TROUBLESHOOTINGTABLE1.LCDPanel"
Is
theCenterIconflashing?
Yes
Yes
Yes
No
No
No
Check
"[3]
TROUBLESHOOTINGTABLE2.Sound"
"[3]
TROUBLESHOOTINGTABLE3.Picture"
59
LC-60UD20
LC-70UD20
LED fl ashing method
2: It depends on the system. The power supply error suitable for the product is defi ned. 
3: For details, refer to ERROR STANDBY CAUSE on the adjustment process screen.
4: If the boot section is abnormal, there is no fl ashing (fl ashing disabled).
g
Examination for a rough content of the error䠚㻌
Central icon
By pushing remote control MENU key.
Examination for details of the error䠚㻌
Central icon
<Upgrade executing >
Central icon
<Upgrade completion>
Central icon
㻠㻜㻜㼙㼟
㻝㻢㻜㻜㼙㼟
㻠㻜㻜㼙㼟
㻟㻜㻜㼙㼟
㻝㻢㻜㻜㼙㼟
㻝㻜㻜㼙㼟
㻡㻜㻜㼙㼟
㻡㻜㻜㼙㼟
㻝㻜㻜㻜㼙㼟
㻠㻜㻜㼙㼟
㻠㻜㻜㼙㼟
㻝㻢㻜㻜㼙㼟
㻝㻜㻜㻜㼙㼟
㻝㻜㻜㻜㼙㼟
㻝㻜㻜㻜㼙㼟
㻻㻲㻲
㻻㻺
㻻㻲㻲
㻻㻺
㻻㻲㻲
㻻㻺
㻻㻲㻲
㻻㻺
䠚㻌
䠚㻌
Table 1. Concrete flashing pattern
Lamp system failure  Flashes once 
-
Flashes once 
Lamp error
Reserve
Reserve
Reserve
Reserve
Power PWB failure Flashes twice 
-
Flashes twice 
Power Error 1 AC_DET error(䈜2) 
(Power failure, etc.)
Power Error 2 UR+13.5V error(䈜2) 
Power Error 3  D3.3V error(䈜2) 
Not used 
Power Error 4  (䈜2) 
Panel power supply error
Main PWB failure 
Flashes 3 times 
-
Flashes 3 times 
Initial communication error
(Communication failure, etc.) 
Start-up confirmation communication error
Regular communication error
Reserve
Other communication error
Others 
Flashes 4 times 
-
Flashes 4 times 
Temperature error
Sync error
Notification from the main microprocessor(䈜3)
Reserve
Reserve
Upgrade executing 
Version upgrading
Upgrade completion
Version upgrade succeeded
Upgrade failed 
Version upgrade failed
System 
ROM data failure 
Start-up after failing version upgrade(䈜4)
Item
Expression for a rough content
Expression for Details
Cause
low-speed blinking high-speed blinking low-speed blinking high-speed blinking
Flashes once 
Flashes twice 
Flashes 3 times 
Flashes 4 times 
Flashes 5 times 
Flashes once 
Flashes twice 
Flashes 3 times 
Flashes 4 times 
Flashes 5 times 
Flashes once 
Flashes twice 
Flashes 3 times 
Flashes 4 times 
Flashes 5 times 
Flashes once 
Flashes twice 
Flashes 3 times 
Flashes 4 times 
Flashes 5 times 
Smoothness changes
-
-
-
a staircase pattern. 
-
-
-
-
Flashing(Continuous)
-
-
Not used 
Mounting discrimination connector 
-
Flashing(Continuous)
-
-
Flashes 5 times 
-
-
60
LC-60UD20
LC-70UD20
NORMAL STANDBY CAUSE
Location: Page (1) of the adjustment process mode: NORMAL STANDBY CAUSE
  Outline: When TV set is powered off due to normal use or product specifi cation, the last cause will be recorded.
The code, character string and description for the standby cause are below.
If you power off by remote, the cause will not be recorded.
ERROR STANDBY CAUSE
Location: Page (1) of the adjustment process mode: NORMAL STANDBY CAUSE
  Outline: When TV set is powered off due to any anomaly detection, the past 5 causes will be recorded.
You can confi rm the time those causes occurred and character string in the adjustment process mode menu. 
The time is accumulated total after TV set is powered on, and the value corresponds to “Center Acutime” 
on the page(2) of the adjustment process mode menu.
The code, character string and description for the standby cause are below.
If no error has occurred, the code is 0 and the character string is “NO RECORD”.
MONITOR ERROR STBY table
Location: Page (1) of the adjustment process mode: MONITOR ERR CAUSE
  Outline: Communication/Power failure detected by the monitor microprocessor (IC2002) is stored on EEPROM,
 states can be confi rmed in the adjustment process mode.
“0” if there is no error. 
 Note: It is cleared to 0 on the page(2) of the adjustment process mode.
䠍䠅
䠎䠅
Display
character string
Description
2
NO_OPERT
No operation off
3
NO_SIGNA
No signal off
6
SLEEP_TM
Off timer
8
OFF_232C
Command from RS232C
䠍䠅
䠎䠅
Display
character string
Description
1A
E_MONITR
Monitor trouble detected
1C
E_CVICBT
cvic boot error
22
E_TCNERR
Software abnormality of LED controller
48
E_MRESET
Failure of resetting menu settings(Initial Setup - Reset)
50
E_TCNF_S
T-CON FPGA status error
54
E_TCON_E
T-CON hung-up
58
E_FRC_ST
FRC setting error
䠍䠅
䠎䠅
Display 
02
Start-up communication error 2 
Initial communication from the main CPU is not received.
03
Start-up communication error 3 
Only the initial communication is received.
04
Start-up communication error 4
Until panel information request reception
05
Start-up communication error 5
Until initialization completion reception
06
Start-up communication error 6
Until version notification transmission
07
Start-up communication error 7
Until start-up information notification transmission
08
Start-up communication error 8
Until start-up information response reception
09
Start-up communication error 9
Until time-out setting reception
0A
Communication error A 
REQ time-out
0B
Communication error B 
Restart time-out during the beginning of time acquisition start-up
0C
Communication error C 
Ending sequence time-out
0D
Communication error D 
Preset start-up time-out during completion
0E
Communication error E 
Download start-up time-out
0F
Communication error F 
Time acquisition time-out
11
 Communication error H
Regular communication time-out
16
Panel-related error 
Lamp failure
1A
Other error 2 
Monitor temperature failure
1D
Power supply error 1 
PS_ON(AC_DET) failure
1E
Power supply error 2 
D_POW(DET_13V) failure
1F
Power supply error 3 
D_POW(DET_D3V3) failure
21
Power supply error 5 
Panel Power Error
23
Other error 3 
Error standby request from the main CPU
Error description
Page of 94
Display

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