Sharp TU-45GAD, Service Manual

Page: 53 / 305

53
TU-GD10U-T
TU-45GAD/T
LC-45GX6U/D/T
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 (38)(39) of P5102 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 (26) of IC5101? The problem probably results from the factor other than the card PWB.
Upgrade the version of the soft.
See page 33
Confirm that solder at R5141/R5142/R5144/R5134 is not wet. Reinsert the socket. Solder of SC5102/IC5101 may bridge. Check L5102/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 W
eb-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 R5103 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 may have problems.
Make sure that about 2.7V is even NG.
NO
The buf
fer circuit of IC5601 thru
IC5607 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
Poor connection of SC5601/ SC5602, bent pins or defective soldering? Repair the corresponding places.
Reinsert the SC5602 card slot to confirm.