TU-37GD1E (serv.man7). Adjustment procedures — Sharp TV Service Manual (repair manual)

Model
TU-37GD1E (serv.man7)
Pages
18
Size
838.61 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjustment procedures
File
tu-37gd1e-sm7.pdf
Date

View Sharp TU-37GD1E (serv.man7) Service Manual online

15
TU-32GD1E
TU-37GD1E
ADJUSTMENT PROCEDURE
The adjustment values are set to the optimum conditions at the factory before shipping.  If a value should become
improper or an adjustment is required due to part replacement, make an adjustment according to the following
procedure.
1. After replacement of any PWB unit and/or IC for repair, please note the following.
1) When replacing the digital unit and E2PROM (IC2102), prepare the following units loaded with updated
software.  After replacement of the FLASH-MEMORY (IC8302, IC8803 and IC8806), the software updating is
required.
Applicable unit: DUNTKC481DE05 (MAIN-UNIT)
Applicable unit: DUNTKC427FE04 (CPU-UNIT)
Applicable unit: DUNTKC482DE01 (IBO-UNIT)
  Important
After replacement of PWB or adjustment of each part, set "KEY WRITE" to "ON" which is shown in the
adjustment OSD menu (Page 2/16).  Then press "OK" and reboot the system.
2.Entering the process adjustment mode
1) Before entering the process adjustment mode, press the RESET key on the front panel or execute the AV
position RESET in the menu video adjustment.
2) Enter the standby mode using the remote controller or the main unit switch.  (Both the power LED of the
Display and that of the AVC system light up in red.)
3) Press "Power" switch of the Display and shut off the power.
4) While simultaneously pressing the "VOL (–)" key and "INPUT" key of the Display, press "MAIN-POWER"
switch of the Display and turn on the power.
(Keep pressing the "VOL (–)" and "INPUT" keys until the specific display appears on the screen.)
Make sure that a K mark is displayed in the top left of the screen.
5) Simultaneously press the "VOL (–)" key and the "CH(
Ù
)" key of the monitor.
Several blue text lines appearing on the screen indicate the successful entry into the process adjustment
mode.
If you have failed (only the ordinary startup display appeared), try this step again.
6) To exit the process adjustment mode after the adjustment is done, unplug the AC power cable from the outlet
to make a forced shutdown.
(When the power was turned off with the remote controller, once unplug the power cable and plug it again.  In
this case, wait 10 seconds or so before plugging.)
Caution: Use due care in handling the information described here lest your users should know how to enter
the process adjustment mode.  If the settings are tampered in this mode, unrecoverable system
damage may result.
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TU-32GD1E
TU-37GD1E
3. Remote controller key operation and description of display in process adjustment mode
1) Key operation
Operation
R/C KEY
MAIN UNIT KEY
Move to the next page
Cursor Up
Back tu the previous page
Cursor Down
Move to the next item
Channel Up
Channel Up
Back tu the previous item
Channel Up
Channel Up
Increase the setting by 1
Volume (+)
Volume (+)
Decrease the setting by 1
Volume (-)
Volume (-)
Increase the setting by 10
Cursor Right
Decrease the setting by 10
Cursor Left
Execute the function
OK
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TU-32GD1E
TU-37GD1E
4. Adjustment procedure
1) Analog adjustment
Before starting the adjustment, make sure that the signal source setting is proper for the LCD for Europe.
Ë
 Signal generator level adjustment check (Adjustment to the specified level)
Composite signal: 0.714Vp-p ±0.02Vp-p (Pedestal level to white)
15K component signal: Y level: 0.714Vp-p ± 0.02Vp-p (Pedestal level to white)
       PB, PR level: 0.7Vp-p ±
 
0.02Vp-p
33K component signal: Y level: 0.714Vp-p ± 0.02Vp-p (Pedestal level to white)
                                      PB, PR level: 0.7Vp-p ± 0.02Vp-p
DVI-I (analog RGB) signal: RGB level: 0.714Vp-p ± 0.02Vp-p (Pedestal level to white)
(1) AVC system chassis pre-adjustment
Adjusting point
Adjusting conditions
Adjusting procedure
1
Input signal setting
2
Auto adjustment
performance
Feed the PAL Full Field colour bar signal (75%
colour saturation) to VIDEO 4 input.
Feed the PAL colour bar signal to TUNER.
The PAL colour bar pattern (Full Field colour bar)
should have the synchronization level of 7:3 with the
picture.
[Signal]
PAL
Full Field Colour Bar
[Terminal]
Video 4 Video input TUNER
Bring the cursor on [
Ë
PAL Adjust] and press [OK].
[
Ë
PAL ALL Adjust Finish] appears when finished.
Process adjustment mode
page 3
Adjusting point
Adjusting conditions
Adjusting procedure
1
Adjustment process
mode
See "Entering the process adjustment mode" above.
(2) PAL signal and tuner adjustment
[Input signal setting]
[Full Field colour bar]
100%White
100%White
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TU-32GD1E
TU-37GD1E
Adjusting point
Adjusting conditions
Adjusting procedure
1
Input signal setting
2
Auto adjustment
performance
Feed the PAL Full Field colour bar signal (75%
colour saturation) to VIDEO 4 input.
Bring the cursor on [
Ë
PAL 2D MAIN ADJ] and
press [OK].
[
Ë
PAL 2D MAIN ADJ Finish] appears when
finished.
Process adjustment mode
page 5
(3) PAL2DYC signal adjustment
Adjusting point
Adjusting conditions
Adjusting procedure
1
Input signal setting
2
Auto adjustment
performance
Feed the PAL Full Field colour bar signal (100%
colour saturation) to VIDEO 3 component input.
[Signal]
COMP 15K 60Hz
100% Full Field
Colour Bar
[Terminal]
Video 3 component input
Bring the cursor on [
Ë
COMP 15K ALL Adjust] and
press [OK].
[
Ë
COMP 15K ALL Adjust Finish] appears when
finished.
Process adjustment mode
page 7
(4) Component 15K signal adjustment
[Signal]
PAL
Full Field Colour Bar
[Terminal]
Video 4 Video input
Black
100%White
100%White
Black
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TU-32GD1E
TU-37GD1E
(5) DVI-I (analog) signal adjustment
(6) DVI-I (digital) signal adjustment
Adjusting point
Adjusting conditions
Adjusting procedure
1
Input signal setting
2
Auto adjustment
performance
Feed the XGA (1024 x 768 60Hz) window pattern
signal to DVI-I (analog) input.
DVI input terminal
connection signal
(Digital/analog)
Bring the cursor on [
Ë
DVI ANALOG] and press [OK].
[
Ë
DVI ANALOG Finish] appears when finished.
Process adjustment mode
page 9
Adjusting point
Adjusting conditions
Adjusting procedure
1
Input signal setting
2
Auto adjustment
performance
    Feed the XGA (1024 x 768 60Hz) window pattern
signal to DVI-I (analog) input.
DVI input terminal
connection signal
(Digital/analog)
Bring the cursor on [
Ë
DVI ANALOG] and press [OK].
[
Ë
DVI ANALOG Finish] appears when finished.
Process adjustment mode
page 10
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Download Sharp TU-37GD1E (serv.man7) Service Manual (Repair Manual)

Here you can view online or download Sharp TU-37GD1E (serv.man7) Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sharp TU-37GD1E (serv.man7) LCD. Information contained in Sharp TU-37GD1E (serv.man7) service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).