Read Sharp LC-20AD5E Service Manual online
PCBs (manufactured) using lead free solder will have a PbF printing on the PCB.
(Please refer to figures.)
Caution:
Pb free solder has a higher melting point than standard solder;
Typically the melting point is 86
o
F~104
o
F(30
o
C~40
o
C) higher.
Please use a soldering iron with temperature control and adjust it to 650
o
F ± 20
o
F (350
o
C ± 10
o
C).
In case of using high temperature soldering iron, please be careful not to heat too long.
Pb free solder will tend to splash when heated too high (about 1100
o
F/ 600
o
C).
All products with the printed circuit board with PbF printing must be serviced with lead free solder.
When soldering or unsoldering, completely remove all of the solder from the pins or solder area,
and be sure to heat the soldering points with the lead free solder until it melts sufficiently.
Distinction of PbF PCB:
Recommendations
Recommended lead free solder composition is Sn-3.0Ag-0.5Cu.
ABOUT LEAD FREE SOLDER (PbF)
•
•
•
•
A1-3
If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below.
Turn on the power.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (3) on the remote control for more than 2
seconds.
The 4 digit password has naw been cancelled.
Set the VOLUME to minimum.
Press both VOL. DOWN button on the set and Channel button (3) on the remote control for more than 2
seconds.
The 4 digit password has naw been cancelled.
1.
2.
3.
2.
3.
4.
PARENTAL CONTROL - RATING LEVEL
4 DIGIT PASSWORD CANCELLATION
No indications on the screen when the Parental Lock is setting.
Initializing password is 0000.
NOTE:
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