LL-172G - Sharp Monitor Service Manual (repair manual). Page 19

Read Sharp LL-172G Service Manual online

LL-172A-W/B/LL-172G-W/B
DISASSEMBLY AND ASSEMBLY
2 – 14
3-2. Press the [
1
] + [
3
] buttons simultaneously.
1. Press the [MODE] button and select [X100].
2. Set 1 using the [
3
] button.
3. Press the [MODE] button and select [X10].
4. Set 5 using the [
3
] button.
After making sure the usage time is set for 150 hours, press the
[MENU] button to finish the setting.
3-3. 
Hold down the [MODE] button and press the [POWER] button.
The former model name, serial number and usage time are shown as follows:
The former model name, serial number and usage time will be set as above.
After checking the data are correct, press the [MENU] button to finish the setting.
4. SET THE LANGUAGE DEFAULT VALUE FOR
[JAPANESE].
Hold down the [MENU]+ [
1
] + [
3
] buttons and press the [POWER] button.
The following screen is displayed:
Select ENGLISH using the [
1
] + [
3
] buttons.
After selecting [ENGLISH], press the [MENU] button to finish the setting.
[Check the language setting]
Check the language setting on the version notification screen.
Hold down the [MENU] and [
3
] buttons and press the [POWER] button.
[172A series model]
[172G series model]
After checking the language setting on the above screen, press the
[MENU] button to finish the setting.
After correcting the model name, serial number and usage time by
changing EDID data, proceed to the next step.
5.
CHECK [PRODUCT INFORMATION] AND VERSION
5-1. Turn off the main power supply and then turn it on.
If the LEDs (green, orange) come on, press the [POWER] button to turn them off.
5-2. Hold down the [MODE] button and press the
[POWER] button.
The former model name, serial number and usage time are shown as
follows:
After checking the Product information on the above screen, press the
MENU button to finish the setting.
5-3.  Check the version
Hold down the MENU and ? buttons and press the [POWER] button.
[172A series model]
[172G series model]
After checking the version number on the above screen, press the
[MENU] button to finish the setting.
5-4. Execute All reset
Hold down the [MENU] + [MODE] buttons and press the [POWER] button.
All reset is executed and the [ENGLISH] OSD is displayed.
5-5. Press the soft [POWER] button to turn the screen off.
5-6. Press the AC power supply switch to turn the AC
power supply off.
6. SET SOGREF
If the D-SUB 15 pin analog input signal is the sync-on green, you can set a
threshold value for the input signal.
Hold down the [MENU] + [MODE] and [
3
] button and press the [POWER] button.
The following screen is displayed.
Set (1) of SOGREF recorded at step 1-2, using the [
1
] + [
3
] buttons.
After making sure the SOGREF is correctly set on the above screen, press
the [MENU] button to finish the screen.
You can set the SOGREF value within the range from [0] to [9]. The default
value is [1].
7. IF THE FIRMWARE NEEDS TO BE REWRITTEN:
Rewrite the firmware in the procedure described in [How to use the 
LL-172A and LL-172G firmware program writing board].
8. WHEN REPLACING LCD PANEL 
When replacing the LCD panel with a new one, select [RESET] on the
USAGE TIME setup screen at item 3, using the [
3
] button.
The [USAGE TIME] will be set for [00000].
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
CHAPTER 4. BLOCK DIAGRAM
CHAPTER 5. TROUBLESHOOTING
CHAPTER 6. CIRCUIT DIAGRAM & PWB LAYOUT
Refer to the Chapter 3-6 in LL-171 sires S/M.
0    [- - - - - - - - - - ]
0    [- - - - - - - - - - ]
1    [- - - - - - - - - - ]
5    [  |  |  |  |  |  - - - - - ]
0    [- - - - - - - - - - ]
USAGE TIME
MANUAL
RESET
X10000 
X1000 
X100 
X10 
X1
: LL-172A-B
: 3T00003X
: 00150 h
Product information
Model name
Serial number
Usage time hours
OSD DEFAULT LANGUAGE
JAPANESE
ENGLISH
MODEL NAME
VERSION
DATE
CHECKSUM
V-sync
H-sync
: 172AE
: 1.002 
: 11/29/2003 
: 565B
: 60Hz
: 48kHz
If English is set by default,
[E] is added to the end of the
model name: [172AE].
MODEL NAME
VERSION
DATE
CHECKSUM
V-sync
H-sync
: 172GE
: 1.002 
: 12/11/2003 
: EA58
: 60Hz
: 48kHz
If English is set by default,
[E] is added to the end of the
model name: [172GE].
MODEL NAME : 172AE
VERSION
: 1.002
DATE
: 11/29/2003
CHECKSUM
: 565B
V-sync
: 60Hz
H-sync
: 48kHz
If ENGLISH is set by default,
[E] is added to the end of the
model name: [172AE].
MODEL NAME : 172GE
VERSION
: 1.001
DATE
: 11/29/2003
CHECKSUM
: EA58
V-sync
: 60Hz
H-sync
: 48kHz
If ENGLISH is set by default,
[E] is added to the end of the
model name: [172GE].
SOGREF1 [ | - - - - - - - - - ]
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