DOWNLOAD Sharp LC-15E1E (serv.man10) Service Manual ↓ Size: 8.17 MB | Pages: 70 in PDF or view online for FREE

Model
LC-15E1E (serv.man10)
Pages
70
Size
8.17 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-15e1e-sm10.pdf
Date

Sharp LC-15E1E (serv.man10) Service Manual ▷ View online

LC-13E1E
LC-15E1E
13
4. Initialization
When the microprocessor (IC2001) or the EEPROM (IC2004) has been replaced or when the EEPROM has been
initialized, readjust the each adjustments.
4-1. Connect the pins (81) and (82) of IC2001 (microprocessor) to GND, and turn on the power.
4-2. Select the model name to (E1E).
4-3. Select the inch size (13)
~
1
 or (15)
~
2
.
4-4. LED changes green from red after setting finish and about 15 seconds, initialization is completed, and it
becomes adjustment mode.
NOTE:
~
1: MODEL. LC-13E1E
~
2: MODEL. LC-15E1E
5. Adjustment
5-1. +B adjustment...Page 1 +B-ADJ
Adjust the voltage of the pin (13) of P2002 to 5.00 ±0.02V.
Note: Since 5.0V is a reference voltage of all power voltage, adjust it precisely.
5-2. Counter-bias adjustment
Vary the "COM BIAS" setting on Page 2 of the adjustment process mode so that the contrast be sharpest
(black looks most sinking).
5-3. TAMP adjustment
1) Receive the upper left of 75% white half colour bar signal.
2) See if the “Y” reading on page 2 of the adjusment process mode is somewhere following. If not, make the
“PAL TAMP” adjustment to get the “Y” reading in the range of BF thru C9.
3) If the adjustment of “PAL TAMP” is executed, write its adjustment value to the “SECAM TAMP” manually.
(Screen of the page 2 of the adjustment processing menu OSD)
5-4. White balance adjustment
Adjust “RCUTOFF” and “BCUTOFF” on the page 2 of the adjustment processing so as to obtain the colour
of the same level as the standard set.
Note: For the adjustment processing of “RCUTOFF” and “BCUTOFF”, adjust them in the indication value
range of ... –9, –7, ... –1, +1, ... +7, +9.
When it becomes even-numbered value, side favor noise sometimes occurs in the monochrome signal of
the specific gradation.
0
1
2
3
4
5
6
7
8
9
10
11 12 13
14 15 16
17 18 19
20 21 22
23 24 25 26
2
C
O
M
B
I
A
S
9
0
P
A
L
T
A
M
P
2
1
S
E
C
A
M
T
A
M
P
2
1
G
C
U
T
O
F
F
R
C
U
T
O
F
F
0
5
B
C
U
T
O
F
F
G
3
B
3
R
3
0
0
0
0
0
0
3
G
1
B
4
Y
0
0
0
0
B
5
T
A
M
P
H
T
A
M
P
L
 
 
 
 
 
C
9
B
F
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Y Data
(White 75%)
LC-13E1E
LC-15E1E
14
6. Factory Setting
6-1. Perform a factory setting after completing all adjustments.
6-2. A “POWER” keys is made on with pushing an “TV/VIDEO” and “MENU” keys at the same time.
6-3. “K” of the inspection process mode is displayed on the screen upper left.
6-4. CH (
ù
) and VOL (+) keys are pushed about 2 seconds at the same time.
6-5. Release keys, if “E” is displayed on the screen upper left and “COMPLETE” is displayed on the bottom of it.
6-6. After a while, a power will be in a standby mode and a setup will be finished.
Note: “First installation” serves on “Deutsch”.
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" on line 9, page 1 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" on line 9, page 1 of the adjustment process and set the number to 0 using the volume button.
 1
  + B — A D J
160
M O D E L
E1E
  I N C H  
S   I Z E
~
3
N T S C
P W M
F R E Q
0C0
P A L
P W M
F R E Q
0BD
N T S C
P W M
D U T Y
0
P A L
P W M
D U T Y
0
T V
G A I
N
OFF
E R R O R
N O
R E S E T
5
P U B L I C
M O D E
OFF
E 1 E
V E R
1 . 0  0  0
Reset 0
Page 1 of the adjustment process
Afterwards, perform the operation check to confirm that the lamp error detection does not function.
NOTE:
~
3 LC-13E1E=13, LC-15E1E=15
LC-13E1E
LC-15E1E
15
TROUBLE SHOOTING TABLE
No picture, No sound
Check all the settings microprocessor’s adjust process menu.
Do F1 and F2 function?
Are T3701’s secondary 
outputs +31V, +22V, +9V, 
+5V and -8V normal?
Remove F1 and F2 and 
check the load side.
Is there short-circuiting?
Is there short-circuiting of 
T3701 primary side periphery, 
Q3700, Q3701 and S4701?
Replace F1 and F2.
Check S4701 and 
connection cable.
Is T3701’s primary oscillator 
waveform normal?
Check T3701’s secondary 
load.
Yes
Yes
No
No
No
No
Yes
Check J3702 periphery and 
connection cable.
Yes
Back light lamp failure to light up
Replace F6500 and F6501.
Is the pin (34) of IC1201 in 
the "H" state?
Is the primary side of 
T6500~T6503 periphery 
short-circuiting?
Replace the back light lamp 
with new one and check 
again.
Yes
Yes
No
No
Yes
Check the OFL1 line, IC1201 
and their peripheral parts.
Check T6500~T6503, 
Q6500~Q6505 and 
connection cable.
LC-13E1E
LC-15E1E
16
TROUBLE SHOOTING TABLE
 (Continued)
No picture (1)
Check all the settings microprocessor
’s adjust process menu.
Is in/output of 
IC801 normal?
Is in/output of
IC1201 normal?
Check IC801
and its 
peripheral parts.
Check IC1201 
and its 
peripheral parts.
Check IC402 
and its 
peripheral parts.
Check IC801, 
AV1 line and its 
peripheral parts.
Check LCD 
panel voltages 
and waveform.
Yes
Yes
No
No
No picture 
at all
Is in/output of 
IC402 normal?
Is input at pin 
(73) of IC801 
normal?
Yes
No
No
No TV and 
S-Video
output
Is voltages at 
pins (6), (7) and 
(18) tuner 
normal?
Is output at pin 
(13) of tuner 
normal?
Check the 
power line.
Check tuner 
and its 
peripheral parts.
Is input at pin 
(3) of IC402 
normal?
Is the pins (2) 
and (4) of IC402 
at "H" and "L" 
state?
Yes
Yes
No
No
No
No
No
Yes
No TV output
Is the pins (65) 
and (66) of 
IC2001 at "H" 
and "L" state?
Yes
Check the its 
line.
Check the its 
line.
Check IC402 
and its 
peripheral parts.
Is input at pin 
(75) of IC801 
normal?
Check V1 IN 
line and its 
peripheral parts.
No
No VIDEO 2 
output
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