Sharp LC-15E1E (serv.man3) Service Manual ▷ View online
LC-13E1E
LC-15E1E
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 (
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”.
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.
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.)
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
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.
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.
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:
NOTE:
~
3 LC-13E1E=13, LC-15E1E=15
LC-13E1E
LC-15E1E
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
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
LC-13E1E
LC-15E1E
LC-15E1E
17
TROUBLE SHOOTING TABLE
(Continued)
No picture (2)
Check all the settings microprocessor
’s adjust process menu.
Is input at pin
(74) of IC801
normal?
Check the AV2
line and its
peripheral parts.
Check the W9,
SY-line, SC-line
and their
peripheral parts.
No
No VIDEO 1
output
Is input at pin (1)
of IC402 and pin
(71) of IC801
normal?
No
No S-VIDEO
output
Check IC1203
and its
peripheral parts.
No
No
Yes
Yes
Yes
No TELETEXT
output
Yes
Is input at pins (2),
(5), (11), and (14)
of IC1203 normal?
Is input at pins (3),
(4) and (5) of
SC1602 normal?
Is output at pins (1)
and (7) of IC1619 and
pin (1) of IC1620
normal?
No
Check connection
cable
Check the R, G
and B line.
No
Check IC1619,
IC1620 and their
peripheral parts.
Is output at pins
(57)~(59) of IC1601
normal?
No
Yes
Check V2V0 line
and its peripheral
parts.
Is input at pin (21) of
IC1601 normal?
Check IC1601 and its
peripheral parts.
