Panasonic TH-50PHW6BX / TH-50PHW6EX / TH-50PHD6EX / TH-50PHD6BX / TH-50PHD6UY Service Manual ▷ View online
4 About lead free solder (PbF)
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Note: Lead is listed as (Pb) in the periodic table of elements.
In the information below, Pb will refer to Lead solder, and PbF will refer to Lead Free Solder.
The Lead Free Solder used in our manufacturing process and discussed below is (Sn+Ag+Cu).
That is Tin (Sn), Silver (Ag) and Copper (Cu) although other types are available.
This model uses Pb Free solder in it’s manufacture due to environmental conservation issues. For service and repair work, we’d
suggest the use of Pb free solder as well, although Pb solder may be used.
suggest the use of Pb free solder as well, although Pb solder may be used.
PCBs manufactured using lead free solder will have the PbF within a leaf Symbol
stamped on the back of PCB.
Caution
●
Pb free solder has a higher melting point than standard solder. Typically the melting point is 50 ~ 70 °F (30~40 °C) higher.
Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
Please use a high temperature soldering iron and set it to 700 ± 20 °F (370 ± 10 °C).
●
Pb free solder will tend to splash when heated too high (about 1100 °F or 600 °C).
If you must use Pb solder, please completely remove all of the Pb free solder on the pins or solder area before applying Pb
solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
solder. If this is not practical, be sure to heat the Pb free solder until it melts, before applying Pb solder.
●
After applying PbF solder to double layered boards, please check the component side for excess solder which may flow
onto the opposite side. (see figure below)
onto the opposite side. (see figure below)
Suggested Pb free solder
There are several kinds of Pb free solder available for purchase. This product uses Sn+Ag+Cu (tin, silver, copper) solder.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also beused.
However, Sn+Cu (tin, copper), Sn+Zn+Bi (tin, zinc, bismuth) solder can also beused.
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5 PCB Structure sheet of GPH6D2
chassis
chassis
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Board Name
Function
Remarks
D
Digital Signal Processor
1
J
Slot Interface & SYNC processor
1
Z
Audio out, DC-DC converter
SS
Sustain Out
1
SC
Scan out
1
SU
Sustain connection (Upper)
1
SD
Sustain connection (Lower)
1
C1
Data Drive (Upper Right)
C2
Data Drive (Upper Center)
C3
Data Drive (Lower Left)
C4
Data Drive (Lower Left)
C5
Data Drive (Lower Center)
C6
Data Drive (Lower Right)
H3
Speaker terminal
S1
Power switch
SS2
Sustain connection (Upper)
SS3
Sustain connection (Lower)
V1
Front SW. & Remote receiver
PF
Line filter
P
Power supply
1
HX
PC_type_Input terminal
HY
BNC Composite/Component Video
2
HZ
BNC Component Video
3
Remarks
1. Recommend PCB´s for initial service for GPH6D2 chassis.
2. For System model except BX, EX version
3. For Consumer model except BX, EX version
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