Monday, January 28, 2013

SHARP LC-26P55E_LC-32P55E_LC-37P55E _ SERVICE MODE & ADJUSTMENTS




TO ENTER AND EXIT ADJUSTMENT PROCESS MODE
  • Unplug the AC power cord of TV set to force power off.
  • 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: “K” color guide:
  • Next, hold down the “VOL (—)” and “P (—)” keys on the set at once. Multiple lines of orange characters appearing onscreen 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 startup), retry the procedure.
  • 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 or so before plugging.)
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.

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.}

DESCRIPTION OF DISPLAY

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 (XXXX/XX/XX X) X
_ _ _ _ _
_ _ _ _ _
XX.XX
XXX
XXXXX
[1] 0 XXHXXM
[2] 0 XXHXXM
[3] 0 XXHXXM
[4] 0 XXHXXM
[5] 0 XXHXXM
  • 1/11:  Current page/Total pages.
  • INFO:  Current page titile.
  • TV:  Currently selected input.
  • AUTO:  Current color TV system.
  • FIX:AUTO:  Adjustment process menu header.
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 reordered 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.

WHITE BALANCE ADJUSTMENT
  • Condition of the inspection: # Backlight: MAX (+8) [DYNAMIC]. ## Colorimeter at screen center.
  • Adjustment reference device: Minolta CA-210
  1. Adjustment spec. ±0.004, Inspection spec. : ±0.006 (GAMMA 1)
  2. Adjustment spec. ±0.002, Inspection spec. : ±0.004 (GAMMA 2...6)
  3. Adjustment: Check that the values on page 7/11 of process adjustment are set as below. If not, change them accordingly.
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
  • 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 -> …)
  • Read the value of the luminance meter.
  • 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 = 0.2757 and y = 0.2825.  (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.)
  • 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)
  • 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 values of the luminance meter approach x = 0.272 and y = 0.277.
  • Repeat step “5” for GAMMA points 4, 3, 2, and 1.
QS TEMPERATURE NVM DATA CONFIRMATION


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.
INITIALIZATION TO FACTORY SETTINGS
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.
  • 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).

Adjustment item
Adjustment conditions
Adjustment procedure

Factory settings
See to above caution
[1] Enter the adjustment process mode.
[2] Bring the cursor on to [INDUSTRY INIT] on page 2/11.
[3] 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.
#  User settings
#  Channel data (e.g. broadcast frequencies)
#  Password data



LAMP ERROR DETECTION
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.
  • 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.)
  • If the situation “1” happens 5 times sequentially, television can not be turned ON. (The power LED remains red.)
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.
RESET THE 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.

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