Panasonic CT27E13G - 27" COLOR TV, Service Manual

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5. Change to the next ID switch register with “CH” keys and repeat
the same procedure as step 4.
6. When replacing a new EEPROM be sure to set the correct ID
switch values for each model.
7. Once that all 3 registers are set with the correct address value,
perform all of the remaining adjustments and servicing.
IMPORTANT:
Correct ID switch configuration should be input when replacing
EEPROM for each television model, otherwise if wrong values are
configured, the television software will not function accordingly and
properly.
4. About lead free solder (PbF)
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). / Thatis 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. / PCBs manufacturedusing lead free solder will have the “PbF” or 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).
- 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 thisis 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
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MC-Service