DOWNLOAD Sharp LC-15E1E (serv.man3) Service Manual ↓ Size: 33.97 KB | Pages: 9 in PDF or view online for FREE

Model
LC-15E1E (serv.man3)
Pages
9
Size
33.97 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Adjusting procedure and troubleshooting table
File
lc-15e1e-sm3.pdf
Date

Sharp LC-15E1E (serv.man3) Service Manual ▷ View online

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
LC-13E1E
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.
LC-13E1E
LC-15E1E
18
TROUBLE SHOOTING TABLE
 (Continued)
No picture (3)
Check all the settings microprocessor
’s adjust process menu.
Is output of 
R0~R7 
normal?
Is output of 
G0~G7
normal?
Is output of 
B0~B7 
normal?
Yes
Yes
No
No
No
Colour is 
unusual
Is in/output of 
SPIO and 
SPOI normal?
No
No picture
image 
inversion
No
Gradation
defect
Is output of U/D
 normal?
Yes
No
Check R1202 and 
its peripheral parts.
Check R1209 and 
its peripheral parts.
Check IC1206, 
IC1207, Q1201 and 
their peripheral 
Check R1203 and 
its peripheral parts.
Check R1204 and 
its peripheral parts.
Is output V0, V7, V17, 
V21, V32, V64, V112, 
V176, V235 and 
V255 normal?
Check IC1106, 
IC1107, IC1108, 
IC1114, IC1115 and 
their peripheral parts.
LC-13E1E
LC-15E1E
19
TROUBLE SHOOTING TABLE
 (Continued)
No sound (1)
Check all the settins microprocessor
’s adjust process menu.
Is the pin (53) of 
IC2001 in the 
"L" state?
Is output at pins
(27) and (28) of 
IC1901 normal?
Is output at pins
(1) and (7) of 
IC1903 normal?
Yes
Yes
No
No
No
No sound 
from front 
speakers
Yes
Muting effect is 
on. Check the 
FSMUTE line.
Check IC1901 
and its
peripheral parts.
Check IC1903 
and its
peripheral parts.
Is the pin (52) of 
IC2001 in the 
"L" state?
Is output at pins
(24) and (25) of 
IC1901 normal?
Is output at pins
(1) and (7) of 
IC304 normal?
Yes
Yes
No
No
No
Yes
Muting effect is 
on. Check the 
HP_MUTE line.
Check IC1901 
and its
peripheral parts.
Check IC304 
and its
peripheral parts.
No sound 
from 
headphone
TV sound 
failure
Is output at pins
(33) and (34) of 
IC1901 normal?
Is output at pins
(1) and (7) of 
IC3500 normal?
Check IC1901 
and its
peripheral parts.
Check IC3500 
and its
peripheral parts.
Yes
No
No
No
No sound 
from output 
line
Check the tuner 
and its
peripheral parts.
Yes
No
Is output at pin 
(11) of TU1 
(Tuner) normal?
Is input at pins 
(67) and (69) 
of IC1901.
Check IC1901 
and its 
peripheral 
parts.
Check J5003
(Headphone Jack) 
and connection 
cable.
No
Is output at pins 
(8) and (12) of 
IC3305 normal?
Check IC3305 
and its
peripheral parts.
Check front 
speaker and 
connection 
cable.
Yes
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