DOWNLOAD Sharp LC-20SH1E (serv.man7) Service Manual ↓ Size: 26.22 KB | Pages: 3 in PDF or view online for FREE

Model
LC-20SH1E (serv.man7)
Pages
3 Few pages! See other manuals at the bottom of the first or last page.
Size
26.22 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / (7) Adjustment Procedure
File
lc-20sh1e-sm7.pdf
Date

Sharp LC-20SH1E (serv.man7) Service Manual ▷ View online

12
LC-20SH1E
ADJUSTING PROCEDURE OF EACH SECTION
The best adjustment is made before shipping. If any position deviation is found or after part replacement is
performed, adjust as follows.
Preparation for adjustments
Use a stable AC power source.
LC-20SH1E
AC Power : 230V
1. Adjusting procedure
Complete Set 
→ Power ON → Enter Adjustment Process Mode (By Remote Control) → RF AGC adjustment →
DCXO adjustment 
→ Common Bias adjustment → White Balance adjustment
2. Entering the adjustment process mode
After power on, press the adjustment process mode key on the service remote control.
3. Key operation in the adjustment process mode
• Use the "UP" or "DOWN" cursor key to select the adjustment mode item.
• Use the "LEFT" or "RIGHT" cursor key to change the data.
4. Initialization
1) Enter the Adjustment Process Mode.
2) Check the model name (SH1E).
3) Select the model inch size to start initialization.
5. Adjustment
5-1. RF AGC adjustment
1) Feed the color bar signal.
2) In Adjustment Mode, select the RF AGC AUTO ("OFF") and press the" >" key to start the adjustment.
3) Automatic adjustment is complete when it display "OK" is displayed.
4) RF AGC data will be in the range of 0-63. If "NOK" is displayed, adjustment failed.
5-2. DCXO adjustment
1) Feed the color bar signal.
2) In Adjustment Mode, select the DCXO AUTO ("OFF") and press ">" key to start the adjustment.
3) Automatic adjustment is complete when "OK" is displayed. If "NOK" is displayed, adjustment failed.
SH1E
Ver ***
INCH SIZE
20
SH1E
Ver ***
RF AGC AUTO
OK
38
RF AGC Auto adjustment complete
RF AGC data (Example)
SH1E
Ver ***
DCXO AUTO
OK
**
DCXO Auto adjustment complete
DCXO data
13
LC-20SH1E
5-3. Common bias adjustment
1) Select the EXT-Video input and without signal.
2) In Adjustment Mode, select the COM BIAS and vary the data until the contrast becomes the sharpest.
    (Black looks most sinking.)
5-4. White balance adjustment
[A] White balance pre-adjustment
1) Feed the 100% white signal.
2) In Adjustment Mode, select the AWBSD ("OFF") and press the">" key to start the adjustment.
3) Automatic adjustment is complete when "OK" is displayed.
[B] White balance adjustment
Adjust "R CUTOFF2", "G CUTOFF2", "B CUTOFF2", "WB R GAIN", "WB G GAIN" and "WB B GAIN" in the
adjustment processing to obtain the same color as the standard set.
6. Factory setting
6-1. Make the factory setting using the adjustment remote control.
6-2. Different factory settings.
Model
Key Name
Remote Control Code
OSD Language Setting
A3IK20SH1E
Shipment Setting 1
1000
0011
1111
110
German
(00001 FEh)
A3IK20SH1K
Shipment Setting 2
1000
0000
1010
110
English
(00001 A8h)
A3IK20SH1F
Shipment Setting 4
1000
0100
1011
110
French
(00004 E9h)
A3IK20SH1I
Shipment Setting 6
1000
0000
1011
110
Italian
(00005 E8h)
Model
Language
Country
Color System
Sound System
AV Control Voltage
A3IK20SH1E
German
Germany
PAL
B/G
NO
A3IK20SH1K
English
UK
PAL
I
NO
A3IK20SH1F
French
France
SECAM
L/L'
YES
A3IK20SH1I
Italian
Italy
PAL
B/G
NO
14
LC-20SH1E
7. Lamp error detection
7-1. 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 followings 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.)
7-2. Countermeasures
7-2-1. Check when turning OFF the lamp error detection
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 "ERROR NO RESET" of the adjustment process is 1 or more. If it is 1 or more, it indicates
the lamp error detection was executed.
7-2-2. Resetting of the lamp error count
After confirming that the lamp or lamp circuit is normal, reset the lamp error count. Select "ERROR NO
RESET" of the adjustment process and set the number to 0 using the "LEFT" or "RIGHT" cursor key.
Afterwards, perform the operation check to confirm that the lamp error detection does not function.
SH1E
Ver ***
ERROR NO RESET
5
Reset 0
Display

Sharp LC-20SH1E (serv.man7) Service Manual ▷ Download

  • DOWNLOAD Sharp LC-20SH1E (serv.man7) Service Manual ↓ Size: 26.22 KB | Pages: 3 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sharp LC-20SH1E (serv.man7) in PDF for free, which will help you to disassemble, recover, fix and repair Sharp LC-20SH1E (serv.man7) LCD. Information contained in Sharp LC-20SH1E (serv.man7) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.