DOWNLOAD Sharp LC-45GD1E (serv.man29) Service Manual ↓ Size: 208.25 KB | Pages: 20 in PDF or view online for FREE

Model
LC-45GD1E (serv.man29)
Pages
20
Size
208.25 KB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD / Trouble shooting table
File
lc-45gd1e-sm29.pdf
Date

Sharp LC-45GD1E (serv.man29) Service Manual ▷ View online

64
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
 (Continued)
The screen is partially whitish or dark.
YES
YES
NO
NO
Is the gradation pattern displayed normally 
when setting PATTERN1 of PATTERN 
PAGE1 in the adjustment process menu to 
02? (Is it whitish or dark?)
When checking the picture 
by connecting the AVC 
center, the whole screen is 
whitish or dark.
Remove the FPC connected to 
SC4701, SC4702, SC6801 and 
SC6802 (to prevent the panel from 
being damaged).
Check the AVC.
Check the voltages supplied to the 
panel:
Pin (2): VH0  7.47V
Pin (3): VH31  9.48V
Pin (4): VH63  9.74V
Pin (5): VH95  10.11V
Pin (6): VH127  10.47V
Pin (7): VH159  10.93V
Pin (8): VH191  11.41V
Pin (9): VH247  12.30V
Pin (10): VH255  14.2V
Pin (11): VLS  15V
Pin (30): VSH  3.3V
Pin (64): VL0  7.42V
Pin (63): VL31  5.32V
Pin (62): VL63  4.93V
Pin (61): VL95  4.53V
Pin (60): VL127  4.06V
Pin (59): VL159  3.55V
Pin (58): VL191  3.06V
Pin (57): VL247  0.99V
Pin (56): VL255  0.28V
Pin (76): VGH  Square wave (32V-15V)
Pin (78): VGL  -7V
65
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
 (Continued)
Card troubleshooting
Are the software version of the PC card first 
and then the V
ersion No?
Is that the newest V
ersion No.?
When the panel is changed to the Card 
Window
, does the panel flash?
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Does Pin (32) of IC5101 show 3.3V?
Is voltage at Pins (28)(27) of SC5102 within 
1.25±0.2V?
Is the socket of SC5102 inserted correctly?
Is the H.V output to Pins (6)(7) of IC5101?
Is the CLK output to Pin (31) of IC5101?
The problem probably results from the factor 
other than the card PWB.
Upgrade the version of the soft.
See page 28
Confirm that solder at 
R5141/R5142/R5144/R5134 is not wet.
Reinsert the socket.
Solder of SC5102/IC5101 may bridge.
Check SC5102/IC5102 and peripheral 
circuits.
IC5001/IC5003/IC5006 may be defective.
Still loading
Thumb-nails or index are displayed.
Is the PC card applicable?
W
ait for about 5 minutes from inserting the 
card in the state of loading.
NO
NO
NO
NO
NO
NO
NO
NO
Even with the card is inserted, freeze 
occurs in the state of loading.
The card may be unapplicable/unconfirmed 
or defect.
T
ry other cards to check if the same 
problem occurs. 
Also check that the card is 
readable by PC.
NO
NO
In the following cases, it may take long time 
to access. 
These cases are not defect.
•A
 lot of files
•A
 lot of folders
•Card having large capacity
•Card accessing at slow rate (early CF
, SM, 
MS or etc.)
•In the case of that adapters are used in 
double or triple
 SD  
-->CF type SD adapter
 
--> PCMCIA
 adapter
 mini SD 
--> mini SD adapter
 
 
--> PCMCIA
 adapter etc.
•Card having some large files
1
2
See to operation 
manual or the Sharp 
We
b-site.
NO
NO
NO
NO
Output from Pin (3) of IC5605 is 
3.3V or 5V
Does Pin (1) of P5003 show 10V?
IC5103 and peripheral circuits may 
be defective, or Q5103 may be 
damaged.
YES
Output from Pin (2) of IC5605 is 
not lower than 2V
.
YES
YES
YES
Input to Pin (1) of IC5605 is not 
lower than 4V
.
IC5001 may be defective.
IC5001 may be defective.
The 
A
V
 PWB or SUB POWER PWB 
may have problems.
Make sure that about 
2.7V is even NG.
NO
The buf
fer circuit of IC5601 thru 
5607 and IC5001 may be 
defective.
Or the PC card may be defective. 
T
ry other cards to check if the 
same problem occurs.
Also check the card is readable by 
PC.
YES
Defective contact, bending of pins 
or that solder is not wet may be 
occurring.
Repair the corresponding places.
Reinsert the 
SC5602 card 
slot to confirm.
66
TU-45GD1E
LC-45GD1E
TROUBLE SHOOTING TABLE
 (Continued)
Is the power 3.3V input to Pin (3) of P5003?
Is the socket of SC5102 inserted?
YES
YES
YES
YES
YES
OK
Is the power 1.5V output to Pin (3) of 
IC5004?
Is voltage of R5101/5102 3.3V?
Is voltage of Pin (3) of S5001 (RESET
 
SW)3.3V?
Check that solder of the IC5003 (32MB 
flash memory) is not wet.
Replace the IC5003 (flash memory) or re-
upgrade version of the soft.
Check which is the cause, the PC PWB or 
Main PWB.
(Disconnect SC5102/P5003 and check 
impedance of Gnd-3.3V is about 8.9k
)
Reinsert the socket.
The power Reg IC5004 may be damaged 
or IC5001/5201 may be defective.
(Impedance of Gnd-1.5V is about 700
)
The solder bridge at SC5102 or defect of 
IC5001 may be occurring.
(Impedance of Gnd-1.5V is about 19.5k
)
R5102 is defective.
Repair the corresponding places.
NO
NO
NO
NO
NO
NG
1
Especially
check that Pins 
(1)(24)(25)(48) 
is not wet.
See Page 28
NO
NO
Change R2593/2594/2595/2596 in 
the 
A
V
 PWB from 100
 into 47
.
Recorded movies have spluttering 
noise.
Movies are played at slow rate.
YES
YES
Check the connector of P5003.
Check that the clock of I2S line is 
installed in 
A
V
-PWB-PC Card.
On switching inputs, add R5041 
10k
 to take measures for noise.
2
CI card is not recognized.
Are Pins in SC9101 folded or crooked?
Is 27MHz CLK input to Pin (35) of IC9101?
Check X9101 and peripheral circuits.
Replace SC9101.
NO
Are Pins (17), (18), (51) and (52) of SC9101 
supplied with 5V voltage?
NO
NO
NO
Check IC9102, IC9014, IC9001 and 
peripheral circuits.
Is 3.3V voltage applied on the power Pin of 
each of IC9101, IC9103, IC9104 and 
IC9105?
Check IC9101, IC9103, IC9104, IC9105 and 
peripheral circuits (data, address).
Check IC9002 and peripheral circuits.
YES
YES
YES
YES
(DVB-UNIT)
67
TU-45GD1E
LC-45GD1E
- M E M O -
Page of 20
Display

Sharp LC-45GD1E (serv.man29) Service Manual ▷ Download