LC-37GA9EK (serv.man6). Service Adjustments - Sharp TV Service Manual (repair manual)

Model
LC-37GA9EK (serv.man6)
Pages
7
Size
218.6 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Service Adjustments
File
lc-37ga9ek-sm6.pdf
Date

View Sharp LC-37GA9EK (serv.man6) Service Manual online

15
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
The adjustment values are set to their optimum at the factory before shipping. If by any chance a value should become 
improper or a readjustment is required due to part replacement, make an adjustment according to the following proce-
dure.
1 Entering and exiting the adjustment process mode
1- Unplug the AC power cord of  TV set to force power off.
2- While holding down the “VOL (–)” and “INPUT” keys on the set at once, plug in the AC power cord to turn on the 
    set. The letter K appears on the screen.
3- Next, hold down the “VOL (—)” and “P ( V )” keys on the set at once. Multiple lines of orange characters appearing  
     on the screen indicate that the set is now in the adjustment process mode. If you fail to enter the adjustment process
    mode (the display is the same as normal start up), retry the procedure.
4- To exit the adjustment process mode after the adjustment is done, unplug the AC power cord to force off the  
    power. (When the power is turned off with the remote controller, once unplug the AC power cord and plug it in
    again. In this case, wait 10 seconds  plugging.)
2 Remote Controller Key Operation and Description of Display in Adjustment Process Mode
2.1 Key operation
Remote controller key
Main unit key
Function
P (Λ / V)
P (Λ / V)
Moving an item (line) by one (UP/DOWN)
VOL (+/-)
VOL (+/-)
Changing a selected item setting (+1/-1)
Cursor (UP / DOWN)
  ————
Turning a page (PREVIOUS / NEXT)
Cursor (LEFT / RIGHT)
  ————
Changing a selected line setting (+10/-10) 
INPUT SOURCE 
on remote controller
INPUT button
Input source switching  (toggle switching)
(TV → EXT1 → EXT2 → EXT3 → EXT4 → EXT5)
(Not Operative)
OK
   ————
 Executing a function
Input  mode  is  switched  automatically  when  relevant  adjustment  is  started  so  far  as  the  necessary  input  signal
available.
2.2 Description of display
SERVICE ADJUSTMENTS
Caution:  Use  due  care  in  handling  the  information  described  here  lest  the  users  should
               know how to enter the adjustment process mode. If the settings tampered with in
                 this mode, unrecoverable system damage may result.
Paramenters
Adjustment process menu 
header
Destination
Current color TV system
Currently selected input
Current page title
Current page/ Total pages
   
1/11              [INFO]             TV           AUTO        FIX: AUTO 
Main Version
Dev Version
Dev Loader Version
Pic Version
TEMP SENSOR
NORMAL STANDBY CAUSE
ERROR STANDBY CAUSE
LEW05 01.XXX (YYYY/MM/DD  X) X
_ _ _ _ _
_ _ _ _ _
XX.XX
XXX
XXXXX
[1] 0    XXHXXM
[2] 0    XXHXXM
[3] 0    XXHXXM
[4] 0    XXHXXM
[5] 0    XXHXXM
16
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
3. Adjustment process mode menu
The character string in brackets [ ] will appear as a page title in the adjustment process menu header.
Page  Line  Item 
Description 
Remarks (Adjustment detail, etc.) 
 
[INFO] 
1/11
1
2
3
4
5
6
7
Main Version 
Dev Version 
Dev Loader Version 
PIC Version  
TEMP SENSOR 
NORMAL STANDBY CAUSE 
ERROR STANDBY CAUSE 
1.xxx (xx/xx/xxxx) x 
- - - - - 
- - - - - 
xx.xx 
xxx 
[X]0 
xxHxxM (X5) 
Main microprocessor version (VCTP) 
NOT USED 
NOT USED 
PIC version  
Temp inside cabinet (near panel)  
Last status which cause standby 
Error standby cause  
Total operating time before error 
 
[INIT] 
2/11
1
2
3
4
5
6
7
8
9
10
FACTORY INIT 
PUBLIC MODE 
Center Acutime 
RESET 
Backlight Acutime 
RESET 
Picture Read Pos X 
Picture Read Pos Y 
Picture Read Signal Type 
Picture Read 
(EURO/UK/ITALY/FRANCE/RUSSIA)ENTER 
OFF/ON 
XxH xxM 
OFF/ON  
XxH xxM 
OFF/ON  
0
0
PAL/COMP/HDMI/RGB 
ON/OFF 
Initialisation to factory settings 
PUBLIC MODE flag setting 
Main operating hours 
Main operating hours reset 
Backlight operating hours 
Backlight operating hours reset 
x-axis setting of picture data 
y-axis setting of picture data 
Signal type of picture data 
Start/stop of picture data 
 
[PAL. SECAM. N358] 
3/11
1
2
3
4
5
6
7
8
9
RF-AGC ADJ 
PAL+TUNER ADJ 
PAL ADJ 
TUNER ADJ 
CONTRAST SD 
SECAM CB OFFSET 
SECAM CR OFFSET  
TUNER A DAC 
 RF AGC 
ENTER 
ENTER 
ENTER 
ENTER 
32
1
1
32
22
RF AGC auto adjustment  
PALTUNER auto adjustment 
PAL auto adjustment 
TUNER auto adjustment 
SD contrast adjustment 
SECAM contrast adjustment 
SECAM contrast adjustment 
TUNER DAC adjustment 
RF AGC adjustment 
 
[COMP 15K] 
4/11
1
2
COMP 15K ADJ 
COMP 15K CONTRAST 
ENTER 
32
COMP 15K auto adjustment 
Contrast adjustment 
 
[HDTV] 
5/11
HDTV CONTRAST 
32 
Contrast adjustment 
 
[TUNER] 
6/11
TUNER TEST 
ENTER 
Tuning test (tuning into 224.25 MHz) (Not 
Operative) 
 
[M GAMMA INFO] 
7/11
1
2
3
4
5
6
7
8
MGAMMA IN 1 
MGAMMA IN 2 
MGAMMA IN 3 
MGAMMA IN 4 
MGAMMA IN 5 
MGAMMA IN 6 
MGAMMA WRITE 
MGAMMA RESET  
160
320
480
640
800
960
OFF/ON 
OFF/ON 
W/B adjustment, gradation 1 input setting 
W/B adjustment, gradation 2 input setting 
W/B adjustment, gradation 3 input setting 
W/B adjustment, gradation 4 input setting 
W/B adjustment, gradation 5 input setting 
W/B adjustment, gradation 6 input setting 
EEP writing of adjustment values 
Initialisation of adjustment values 
 
[M GAMMA 1-3] 
8/11
1
2
3
4
5
6
7
8
9
10
MGAMMA R 1 
MGAMMA G 1 
MGAMMA B 1 
MGAMMA R 2 
MGAMMA G 2 
MGAMMA B 2 
MGAMMA R 3 
MGAMMA G 3 
MGAMMA B 3 
MGAMMA WRITE 
0
0
0
0
0
0
0
0
0
OFF/ON 
W/B adjustment, gradation 1R adjustment value 
W/B adjustment, gradation 1G adjustment value 
W/B adjustment, gradation 1B adjustment value 
W/B adjustment, gradation 2R adjustment value 
W/B adjustment, gradation 2G adjustment value 
W/B adjustment, gradation 2B adjustment value 
W/B adjustment, gradation 3R adjustment value 
W/B adjustment, gradation 3G adjustment value 
W/B adjustment, gradation 3B adjustment value 
EEP writing of adjustment values 
 
[M GAMMA 4-6] 
9/11
1
2
3
4
5
6
7
8
9
10
MGAMMA R 4 
MGAMMA G 4 
MGAMMA B 4 
MGAMMA R 5 
MGAMMA G 5 
MGAMMA B 5 
MGAMMA R 6 
MGAMMA G 6 
MGAMMA B 6 
MGAMMA WRITE 
0
0
0
0
0
0
0
0
0
OFF/ON 
W/B adjustment, gradation 4R adjustment value 
W/B adjustment, gradation 4G adjustment value 
W/B adjustment, gradation 4B adjustment value 
W/B adjustment, gradation 5R adjustment value 
W/B adjustment, gradation 5G adjustment value 
W/B adjustment, gradation 5B adjustment value 
W/B adjustment, gradation 6R adjustment value 
W/B adjustment, gradation 6G adjustment value 
W/B adjustment, gradation 6B adjustment value 
EEP writing of adjustment values 
17
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
4 Special Features
- ERROR STAND-BY CAUSE (Page 1/11) 
  When the unit enters standby due to operational error, total time before the error and the cause of error is recorded
  on EEPROM, if possible. The values can be used to locate the fault for repair.
- EEP CLEAR (Page 10/11)
  Restore NVM data to default values.  
- EEP CLEAR B (Page 10/11)
  Restore NVM data to default values except adjustment data.
5 Video Signal Adjustment Procedure
The adjustment process mode menu is listed in Section 3.
5.1. Signal check
Signal generator level adjustment check (Adjustment to the specified level).
- Composite signal PAL 
:  0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
- 15K Component signal 
:  Y level 
 
0.7Vp-p ± 0.02Vp-p (Pedestal to white level)
  (50Hz) (576i/50Hz)  
   PB, PR level   
0.7Vp-p ± 0.02Vp-p
Page  Line  Item 
Description 
Remarks (Adjustment detail, etc.) 
 
[ETC] 
10/11
1
2
3
4
5
6
7
8
9
EEP CLEAR 
EEP CLEAR B 
STAND BY CAUSE RESET 
AUTO INSTALLATION SW 
OPTION 
COUNTRY 
L ERR RESET 
L ERR STOP 
I2C-OFF 
OFF/ON 
OFF/ON 
OFF/ON 
0/1
0
AUTO
0
0/1
ENTER
Restore NVM data to default values 
Restore NVM data to default values except 
adjustment data 
Clearing of standby cause error list 
0: unfinished    1:finish (The setting takes effect 
the next time the power is turned on.) 
AUTO: defects the actual region. 
Lamp error counter 
Stops Lamp Error feature (Not operative) 
BUS STOP 
 
LCD 
11/11
1
2
3
4
5
6
7
OSC FREQ 50 
OSC FREQ 60 
PWM FREQ 50 
PWM FREQ 60 
PWM FREQ 
PWM DUTY 
PWM CTRL 
144
144
1
1
424
227
0
5.2. Entering the adjustment process mode
Enter the  adjustment process mode according to Section
 1.
5.3. RF AGC Adjustment
LC-26P50E
LC-32P50E
LC-37P50E
29
6. Special features
`
ERROR STANDBY CAUSE (Page 1/12)
When the unit enters standby due to operational error, total time before the error and the cause of error is
recorded on EEPROM, if possible.The values can be used to locate the fault for repair.
`
EEP SAVE (Page 12/12)
Storage of EEP adjustment value.
`
EEP RESTORE (Page 12/12)
Retrieval of EEP adjustment value from storage area.
7. Video signal adjustment procedure
*  The adjustment process mode menu is listed in Section 5.
(1) Signal check
Signal generator level adjustment check (Adjustment to the specified level)
» Composite signal
: 0.714Vp-p ± 0.02Vp-p (Pedestal to white level)
» Composite signal PAL
: 0.7Vp-p ±0.02Vp-p (Pedestal to white level)
» RGB signal
: 0.7Vp-p± 0.02Vp-p
» 15K component signal : Y level
0.7Vp-p±0.02Vp-p (Pedestal to white level)
(50 Hz)
PB, PR level
0.7Vp-p ±0.02Vp-p
» 33K component signal : Y level
0.7Vp-p  ± 0.02Vp-p (Pedestal to white level)
PB, PR level
0.7Vp-p ±0.02Vp-p
(2) Entering the adjustment process mode
Enter the adjustment process mode according to Section 3.
(3) RF AGC adjustment
Adjustment point Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Field Color Bar
RF signal UV
[Terminal]
TUNER
2
Auto adjustment Adjustment process page 3
performance
»
Feed the PAL  color bar signal (E-12ch) to TUNER.
Signal level: 52
±
1 dB µV (75� LOAD)
Bring the cursor on [ËRF AGC ADJ] and press [OK].
[ËRF AGC ADJ OK] appears when finished.
[E-12CH]
�100% white
18
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
5.4. PAL Signal & Tuner Adjustment
LC-26P50E
LC-32P50E
LC-37P50E
30
Adjustment point Adjustment conditions
Adjustment procedure
1
Setting
[Signal]
PAL
Full Field Color Bar
Composite or RF signal
[Terminal]
EXT3 VIDEO IN
TUNER
2
Auto adjustment Adjustment process page 3
performance
» Feed the PAL full field color bar signal (75% color saturation) to EXT3
VIDEO IN.
» Feed the RF signal (PAL color bar) to TUNER.
» Make sure the PAL color bar pattern (E-12) has the sync level of 7:3 with
the picture level.
Bring the cursor on [ËPAL +  TUNER ADJ] and press [OK].
[ËPAL +  TUNER ADJ OK] 
appears when finished.
(4) PAL signal & tuner adjustment
[E-12CH]
�100% white
�100% white
[VIDEO IN SIGNAL]
(5) SECAM signal adjustment
(6) N358 signal adjustment
Adjustment point Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
SECAM
Full Field Color Bar
[Terminal]
EXT3 VIDEO IN
2
Auto adjustment Adjustment process page 3
performance
» Feed the SECAM full field color bar signal (75% color saturation) to
EXT3 VIDEO IN.
Bring the cursor on [ËSECAM ADJ] and press [OK].
[ËSECAM ADJ OK] appears when finished.
100% white ↑
Black
Adjustment point Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
N358
Full Field Color Bar
[Terminal]
EXT3 VIDEO IN
2
Auto adjustment Adjustment process page 3
performance
» Feed the N358 full field color bar signal (75% color saturation) to EXT3
VIDEO IN.
Bring the cursor on [ËN358 ADJ] and press [OK].
[ËN358 ADJ OK] appears when finished.
↑100% white
75% color bar
5.5. ADC Adjustment (Component 15K)
LC-26P50E
LC-32P50E
LC-37P50E
31
(7) ADC adjustment (Component 15K)
(8) ADC adjustment (Component 33K)
(9) HDMI signal adjustment
Adjustment point Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal] (576i/50)
COMP15K, 50Hz
100%Full Field Color Bar
[Terminal]
EXT4 [COMPONENT]
2
Auto adjustment Adjustment process page 4
performance
» Feed the COMPONENT 15K 100% full field color bar signal (100% color
saturation) to EXT4 COMPONENT IN.
Bring the cursor on [ËCOMP15K ADJ] and press [OK].
[ËCOMP15K ADJ OK] appears when finished.
Adjustment point Adjustment conditions
Adjustment procedure
1
Adjustment
[Signal]
COMP33K, 60Hz
100%Full Field Color Bar
[Terminal]
EXT3 COMPONENT IN
2
Auto adjustment Adjustment process page 5
performance
» Feed the COMPONENT 33K 100% full field color bar signal (100% color
saturation) to EXT3 COMPONENT IN.
Bring the cursor on [ËHDTV ADJ] and press [OK].
[ËHDTV ADJ OK] appears when finished.
Adjustment point Adjustment conditions
Adjustment procedure
1
Adjustment
Recommended signal
generator:
Leader Electronics-
made LT448
2
Auto adjustment Adjustment process page 6
» Set the output signal to 1080i/59.94 (30sF) RGB digital one.
» Set the signal to full color bar (100% saturation) one. 8 bars with the
rightmost one in black. Dynamic range: min 16 to max. 235.
» Feed the signal to HDMI IN from the signal generator's DVI terminal
through the DVI-HDMI conversion cable.
Bring the cursor on [ËHDMI ADJ] and press [OK].
[ËHDMI ADJ OK] appears when finished.
100% white ↑
Black
100% white ↑
Black
100% white ↑
Black
6 White Balance Adjustment
Adjustment procedure Page 7/11 shows the value of adjustment gradation (IN value) and Adjustment procedure Page 
8/11 & 9/11 show adj. offset value (initial value : 0). White balance adjustment is executed adjusting the adj. offset value, 
indicated on Page 8/11 & 9/11.
Condition of the inspection: • Backlight: MAX (+8) [DYNAMIC]
 
 
 
      
  • Colorimeter at screen centre
Adjustment reference device: Minolta CA-210
Adjustment spec.  ±0.004,     Inspection spec. : ±0.006   (GAMMA 1)
Adjustment spec.  ±0.002,     Inspection spec. : ±0.004   (GAMMA 2...6)
  
Adjustment: Check that the values on page 7/11 of process adjustment are set as below. If not, change them ac-
cordingly. 
19
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
M GAMMA IN 1
160
M GAMMA IN 2
320
M GAMMA IN 3
480
M GAMMA IN 4
640
M GAMMA IN 5 
800
M GAMMA IN 6
960
1- Display the current adjustment status at point 6. (Page 9/11 of process adjustment)
The pattern for checking the adjustment status is toggled by pressing the “6” button on the remote control. (Normal 
OSD display -> “6” -> pattern for check (OSD disappears) -> “6” -> normal OSD display -> …)
2- Read the value of the luminance meter.
3- Change M GAMMA R6/M GAMMA B6 (adjustment offset value) on page 9/11 of process adjustment so that the 
values of the luminance meter approach 
x = 0.272 and y = 0.277.
(Basically, G is not changed. If adjustment fails only with R and B, then G should be reduced. In this case, the weaker 
of R and B must be fixed.)
4- If G is changed in step “3”, change the values of M GAMMA G1 - M GAMMA G5 on pages 8/11 and 9/11 of process 
adjustment as follows. When not changed, go to step “5”.
Offset value of M GAMMA G1 = (Offset value of M GAMMA G6)*(160/960)
   Offset value of M GAMMA G2 = (Offset value of M GAMMA G6)*(320/960)
Offset value of M GAMMA G3 = (Offset value of M GAMMA G6)*(480/960)
Offset value of M GAMMA G4 = (Offset value of M GAMMA G6)*(640/960)
Offset value of M GAMMA G5 = (Offset value of M GAMMA G6)*(800/960)
5- Display the adjustment status of the current point 5. (Each time the “5” button on the remote control is pressed, the 
adjustment status check pattern is toggled.)
(Normal OSD display -> “5” -> Pattern display (OSD disappears) -> “5” -> Normal OSD display ->…)
Change M GAMMA R5/M GAMMA B5 (adjustment offset value) on page 9/11 of process adjustment so that the val-
ues of the luminance meter approach 
x = 0.272 and y = 0.277.
6- Repeat step “5” for GAMMA points 4, 3, 2, and 1.
   
7 QS Temperature NVM Data Confirmation
If during servicing of the LCD TV set, by software upgrading or by clearing NVM, it’s necessary check QS Temperature 
data following the method described below:
Enter in Service Mode (Factory A). 
Enter in Factory B page 1/25, by pressing “i+” key in normal R/C. 
Go to page 24/25 by pressing twice “Cursor UP” key. 
Verify and in case necessary modify according the attached list, “QS_D1” to “QS_D7” values, depending of the screen 
size.
26 inch
32 inch
37 inch
QS_D1
58
74
51
QS_D2
76
89
72
QS_D3
92
101
90
QS_D4
105
112
106
QS_D5
118
123
121
QS_D6
254
133
254
QS_D7
255
255
255
NOTE:
-Use “P UP” or “P DOWN” for moving “up” or “down” inside the Service page.
-Use “VOL +” or “VOL -” for modifying data in “+1” or “-1” unit inside the Service page.
-Use “CURSOR RIGHT” or “CURSOR LEFT” for modifying data in “+10” or “-10” units inside the Service page.
20
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
8 Initialization to factory settings
LC-26P50E
LC-32P50E
LC-37P50E
33
6) Display the current adjustment status at point 1. (Press the ”1” button on the remote control to toggle between
normal display and adjustment status display [normal display � ”1” � adjustment status display � ”1” � normal
display � ...].)
7) Check the brightness values using the luminance meter.
8) Change M GAMMA R1 and M GAMMA B1 on page 10/12 of process adjustment so that the brightness becomes
closest to x= 0.272 and y= 0.277.
9) Repeat step 6) to check the values. Repeat the steps until the brightness becomes closest to x= 0.272 and
y= 0.277.
10) Repeat steps 6) - 9) for points 2, 3, 4 and 5.
[W/B adjustment reference value]
Point 1 - 6 reference value      x= 0.272   y= 0.277
9.  Initialization to factory settings
Adjustment item
Adjustment conditions
Adjustment procedure
1
Factory settings
See to below caution
» Enter the adjustment process mode.
» Bring the cursor on to [INDUSTRY INIT] on page 2/11.
» Use the [Volume + -] key to select a region from [EURO/UK/ITALY/
FRANCE/RUSSIA] and press [ENTER]. “EXECUTING” appears and
initialization starts.After a while, “***OK***” appears and the setting
is complete.
Note: Never turn the power off during initialization.
The following settings will be back to their factory ones.
1. User settings
2. Channel data (e.g. broadcast frequencies)
3. Password data
After adjustments, exit the adjustment process mode.
To exit the adjustment process mode, unplug the AC power cord from the outlet to forcibly turn off the power.
When the power is turned off with the remote control, unplug the AC power cord and plug it back in (wait
approximately 10 seconds before plugging in the AC power cord).
Caution: When the factory settings have been made, all user setting data, including the channel settings, are
initialized. (The adjustments done in the adjustment process mode are not initialized.) Keep this in
mind when initializing these settings.
9 Lamp error detection
9.1. Functional description
This LCD colour television has a function (lamp error detection) to be turned OFF automatically for safety when the
lamp or lamp circuit is abnormal.
If the lamp or lamp circuit is abnormal, or some other errors happen, and the lamp error detection is executed, the
following occur.
1- The main unit of television is turned OFF 5 seconds after it is turned ON. (The power LED on the front side of TV
turns from green to red.)
2 - If the situation “1” happens 5 times sequentially, television can not be turned ON. (The power LED remains red.)
9.2 Countermeasures
When television is turned OFF by the lamp error detection mentioned above, it enters the adjustment process with
the power LED red. Entering the adjustment process turns OFF the error detection and turns ON TV. This enables 
the operation check to detect errors in the lamp or lamp circuit.
Check whether “L ERROR RESET” on point 7, page 10/11 of the adjustment process is 1 or more. If it is 1 or more, 
it indicates the lamp error detection was executed. After confirming that the lamp or lamp circuit is normal,  reset the 
lamp error counter pushing “OK” in the R/C. After resetting counter the label  “***OK***”  appears on Screen.
9.3. Reset  standby  cause error list
After confirming that the lamp error counter has been erased, select “STAND BY CAUSE RESET” on point 3, page 
10/11 of the adjustment process and select ON using the right cursor. For execute press “OK” in the R/C and the     
label “***OK***” appears on Screen. 
21
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
10. Public Mode (Hotel Mode)
10.1 How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode (ADJ1 or Service Mode) as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+”and “P^” keys at the same time, press Main Power switch for more than 2 seconds.
After this sequence the TV will turn on showing the Public Mode setting screen as follows:
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH(∧)(∨) keys 
on the LCD TV. 
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control 
or VOL(+)(-) keys on the LCD TV.
Select  ENTER  position  after  you  set  all  function,  and  press  cursor  RIGHT/LEFT  keys  on  the  remote  control  or 
VOL(+)/(-) keys on the LCD TC for confirmation.
10.2. Public Mode Settings.
1. POWER ON FIXED  [
VARIABLE FIXED]
When it is set to “FIXED”  the TV is impossible to be switch off by Main Switch or  Remote Control.
2. MAXIMUM VOLUME [
0   60]
Is possible to set the maximum volume at limited level.
3. VOLUME FIXED [
VARIABLE  FIXED]
Is possible to fix the sound volume at limited level. 
When “FIXED” is selected the sound volume before limited is fixed.
4.VOLUME FIXED LEVEL  [
0   60]
If “FIXED” has been selected, is possible to set a fixed volume at the level that is choosen.   
5. RC  BUTTON  [
RESPOND  NO RESPOND]
If “NO RESPOND” is selected, the remote control keys are inoperative.
6.  PANEL BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, the set´s keys remain deactivated (Except POWER  key).
7. MENU BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, “MENU” keys, both on the set and remote control, are inoperative.
8. ON SCREEN DISPLAY [YES 
 NO]
If “NO” has been selected,  the On Screen Display does not appear.
9.  INPUT MODE START [
 NORMALTV (X)INPUT1 INPUT2INPUT3  INPUT4  INPUT5 ]
When any other item than “NORMAL” has been selected, the sets will start in a selected input mode at the next 
power-on.
10. INPUT MODE FIXED [
VARIABLE FIXED]
If “FIXED” has been selected, any channels and input modes other than those selected at the start mode cannot be 
picked up.
11. RESET
Cancel all Public Mode settings. (It returns to the factory settings)
12. EXECUTE
After select this item, all positions that has been selected will not be set.
MAXIMUM  VOLUME                                        [60] 
VOLUME FIXED                    [VARIABLE]
VOLUME FIXED LEVEL                [0]
RC BUTTON                          [RESPOND]
PANEL BUTTON                    [RESPOND]
MENU BUTTON                     [RESPOND]
ON  SCREEN  DISPLAY                              [YES]
INPUT  MODE  START                            [NORMAL]
INPUT MODE FIXED               [VARIABLE]
RESET 
EXECUTE
  POWER ON FIXED           
  [VARIABLE] 
 
 Public Mode 
21
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
10. Public Mode (Hotel Mode)
10.1 How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode (ADJ1 or Service Mode) as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+”and “P^” keys at the same time, press Main Power switch for more than 2 seconds.
After this sequence the TV will turn on showing the Public Mode setting screen as follows:
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH(∧)(∨) keys 
on the LCD TV. 
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control 
or VOL(+)(-) keys on the LCD TV.
Select  ENTER  position  after  you  set  all  function,  and  press  cursor  RIGHT/LEFT  keys  on  the  remote  control  or 
VOL(+)/(-) keys on the LCD TC for confirmation.
10.2. Public Mode Settings.
1. POWER ON FIXED  [
VARIABLE FIXED]
When it is set to “FIXED”  the TV is impossible to be switch off by Main Switch or  Remote Control.
2. MAXIMUM VOLUME [
0   60]
Is possible to set the maximum volume at limited level.
3. VOLUME FIXED [
VARIABLE  FIXED]
Is possible to fix the sound volume at limited level. 
When “FIXED” is selected the sound volume before limited is fixed.
4.VOLUME FIXED LEVEL  [
0   60]
If “FIXED” has been selected, is possible to set a fixed volume at the level that is choosen.   
5. RC  BUTTON  [
RESPOND  NO RESPOND]
If “NO RESPOND” is selected, the remote control keys are inoperative.
6.  PANEL BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, the set´s keys remain deactivated (Except POWER  key).
7. MENU BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, “MENU” keys, both on the set and remote control, are inoperative.
8. ON SCREEN DISPLAY [YES 
 NO]
If “NO” has been selected,  the On Screen Display does not appear.
9.  INPUT MODE START [
 NORMALTV (X)INPUT1 INPUT2INPUT3  INPUT4  INPUT5 ]
When any other item than “NORMAL” has been selected, the sets will start in a selected input mode at the next 
power-on.
10. INPUT MODE FIXED [
VARIABLE FIXED]
If “FIXED” has been selected, any channels and input modes other than those selected at the start mode cannot be 
picked up.
11. RESET
Cancel all Public Mode settings. (It returns to the factory settings)
12. EXECUTE
After select this item, all positions that has been selected will not be set.
MAXIMUM  VOLUME                                        [60] 
VOLUME FIXED                    [VARIABLE]
VOLUME FIXED LEVEL                [0]
RC BUTTON                          [RESPOND]
PANEL BUTTON                    [RESPOND]
MENU BUTTON                     [RESPOND]
ON  SCREEN  DISPLAY                              [YES]
INPUT  MODE  START                            [NORMAL]
INPUT MODE FIXED               [VARIABLE]
RESET 
EXECUTE
  POWER ON FIXED           
  [VARIABLE] 
 
 Public Mode 
21
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
10. Public Mode (Hotel Mode)
10.1 How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode (ADJ1 or Service Mode) as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+”and “P^” keys at the same time, press Main Power switch for more than 2 seconds.
After this sequence the TV will turn on showing the Public Mode setting screen as follows:
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH(∧)(∨) keys 
on the LCD TV. 
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control 
or VOL(+)(-) keys on the LCD TV.
Select  ENTER  position  after  you  set  all  function,  and  press  cursor  RIGHT/LEFT  keys  on  the  remote  control  or 
VOL(+)/(-) keys on the LCD TC for confirmation.
10.2. Public Mode Settings.
1. POWER ON FIXED  [
VARIABLE FIXED]
When it is set to “FIXED”  the TV is impossible to be switch off by Main Switch or  Remote Control.
2. MAXIMUM VOLUME [
0   60]
Is possible to set the maximum volume at limited level.
3. VOLUME FIXED [
VARIABLE  FIXED]
Is possible to fix the sound volume at limited level. 
When “FIXED” is selected the sound volume before limited is fixed.
4.VOLUME FIXED LEVEL  [
0   60]
If “FIXED” has been selected, is possible to set a fixed volume at the level that is choosen.   
5. RC  BUTTON  [
RESPOND  NO RESPOND]
If “NO RESPOND” is selected, the remote control keys are inoperative.
6.  PANEL BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, the set´s keys remain deactivated (Except POWER  key).
7. MENU BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, “MENU” keys, both on the set and remote control, are inoperative.
8. ON SCREEN DISPLAY [YES 
 NO]
If “NO” has been selected,  the On Screen Display does not appear.
9.  INPUT MODE START [
 NORMALTV (X)INPUT1 INPUT2INPUT3  INPUT4  INPUT5 ]
When any other item than “NORMAL” has been selected, the sets will start in a selected input mode at the next 
power-on.
10. INPUT MODE FIXED [
VARIABLE FIXED]
If “FIXED” has been selected, any channels and input modes other than those selected at the start mode cannot be 
picked up.
11. RESET
Cancel all Public Mode settings. (It returns to the factory settings)
12. EXECUTE
After select this item, all positions that has been selected will not be set.
MAXIMUM  VOLUME                                        [60] 
VOLUME FIXED                    [VARIABLE]
VOLUME FIXED LEVEL                [0]
RC BUTTON                          [RESPOND]
PANEL BUTTON                    [RESPOND]
MENU BUTTON                     [RESPOND]
ON  SCREEN  DISPLAY                              [YES]
INPUT  MODE  START                            [NORMAL]
INPUT MODE FIXED               [VARIABLE]
RESET 
EXECUTE
  POWER ON FIXED           
  [VARIABLE] 
 
 Public Mode 
21
 LC-26GA5E
 LC-32GA5E
  LC-32GA9E/LC-32BV9E
  LC-37GA9E/LC-37BV9E
10. Public Mode (Hotel Mode)
10.1 How to Enter in the Public Mode (Hotel Mode).
Turn on the power and enter in the Adjustment Process mode (ADJ1 or Service Mode) as usual.
In the [INIT], Page 2/11 of Service, turns ON the Public Mode option.
Turn off TV by pressing Main Power switch.
While pressing “VOL+”and “P^” keys at the same time, press Main Power switch for more than 2 seconds.
After this sequence the TV will turn on showing the Public Mode setting screen as follows:
Is possible to select each item of function by pressing cursor UP/DOWN keys on the remote control or CH(∧)(∨) keys 
on the LCD TV. 
The setting position of each item of functions is made by pressing cursor RIGHT/LEFT keys on the remote control 
or VOL(+)(-) keys on the LCD TV.
Select  ENTER  position  after  you  set  all  function,  and  press  cursor  RIGHT/LEFT  keys  on  the  remote  control  or 
VOL(+)/(-) keys on the LCD TC for confirmation.
10.2. Public Mode Settings.
1. POWER ON FIXED  [
VARIABLE FIXED]
When it is set to “FIXED”  the TV is impossible to be switch off by Main Switch or  Remote Control.
2. MAXIMUM VOLUME [
0   60]
Is possible to set the maximum volume at limited level.
3. VOLUME FIXED [
VARIABLE  FIXED]
Is possible to fix the sound volume at limited level. 
When “FIXED” is selected the sound volume before limited is fixed.
4.VOLUME FIXED LEVEL  [
0   60]
If “FIXED” has been selected, is possible to set a fixed volume at the level that is choosen.   
5. RC  BUTTON  [
RESPOND  NO RESPOND]
If “NO RESPOND” is selected, the remote control keys are inoperative.
6.  PANEL BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, the set´s keys remain deactivated (Except POWER  key).
7. MENU BUTTON [
RESPOND  NO RESPOND]
If “NO RESPOND” has been selected, “MENU” keys, both on the set and remote control, are inoperative.
8. ON SCREEN DISPLAY [YES 
 NO]
If “NO” has been selected,  the On Screen Display does not appear.
9.  INPUT MODE START [
 NORMALTV (X)INPUT1 INPUT2INPUT3  INPUT4  INPUT5 ]
When any other item than “NORMAL” has been selected, the sets will start in a selected input mode at the next 
power-on.
10. INPUT MODE FIXED [
VARIABLE FIXED]
If “FIXED” has been selected, any channels and input modes other than those selected at the start mode cannot be 
picked up.
11. RESET
Cancel all Public Mode settings. (It returns to the factory settings)
12. EXECUTE
After select this item, all positions that has been selected will not be set.
MAXIMUM  VOLUME                                        [60] 
VOLUME FIXED                    [VARIABLE]
VOLUME FIXED LEVEL                [0]
RC BUTTON                          [RESPOND]
PANEL BUTTON                    [RESPOND]
MENU BUTTON                     [RESPOND]
ON  SCREEN  DISPLAY                              [YES]
INPUT  MODE  START                            [NORMAL]
INPUT MODE FIXED               [VARIABLE]
RESET 
EXECUTE
  POWER ON FIXED           
  [VARIABLE] 
 
 Public Mode 

Download Sharp LC-37GA9EK (serv.man6) Service Manual (Repair Manual)

Here you can view online and download Sharp LC-37GA9EK (serv.man6) Service Manual in PDF. LC-37GA9EK (serv.man6) service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sharp LC-37GA9EK (serv.man6) LCD. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.