Panasonic CT-27C8G Service Manual

Also see for CT27C8G - 27" COLOR TV: Operating manual Service manual

Panasonic CT-27C8G Service Manual Manual pdf 9 page image

the same procedure as step 4.6. When replacing a new EEPROM be sure to set the correct IDswitch 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 replacingEEPROM for each television model, otherwise if wrong values areconfigured, the television software will not function accordingly andproperly.4. About lead free solder (PbF)NOTELead is listed as (Pb) in the periodic table of elements. / In the information below, Pb will refer tolead solder, and PbF will refer to Lead Free Solder. / The lead free solder used in ourmanufacturing process and discussed below is (Sn+Ag+Cu). / Thatis Tin (Sn), Silver (Ag) andCopper (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 maybe / used. / PCBs manufacturedusing lead free solder will have the “PbF” or a leaf symbolstamped 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. Pleaseuse 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 completelyremove all of the Pb free solder on the pins or solder area beforeapplying Pb solder. If thisis not practical, be sure to heat the Pbfree solder until it melts, before applying Pb solder.- After applying PbF solder to double layered boards, please checkthe component side for excess solder which may flow onto the9