73 Service Navigation3.1. IntroductionThis service manual contains technical information, which allow service personnel’s to understand and service this model.Please place orders using the parts list and not the drawing reference numbers.If the circuit is changed or modified, the information will be followed by service manual to be controlled with original service manual.3.2. Important Notice3.2.1. CCD UNIT:• The image sensor (CCD) unit which are connected to the lens unit with 3 screws.These screws are locked with the screw locking glue, after performing the Optical tilt adjustment.During servicing, if one of CCD fixing screws are loosened, the Optical tilt adjustment must be performed.About the Optical tilt adjustment, refer to the "9.3.2 Adjustment Specifications" for details.3.2.2. About Flexible Cable and ConnectorDo not touch carelessly so that the foreign body should not adhere to the terminal part of flexible cable and connector.Wipe off with a clean cloth and the cotton bud, etc. when the terminal part is dirty.3.3. General Description About Lead Free Solder (PbF)The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for thisequipment in considering the globally environmental conservation.The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30°C (86°F) more than that of thenormal solder.Distinction of P.C.B. Lead Free Solder being usedService caution for repair work using Lead Free Solder (PbF)• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.(Definition: The letter of “PbF” is printed on the P.C.B. using the lead free solder.)• To put lead free solder, it should be well molten and mixed with the original lead free solder.• Remove the remaining lead free solder on the P.C.B. cleanly for soldering of the new IC.• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt thelead free solder.• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30°C(662±86°F).Recommended Lead Free Solder (Service Parts Route.)• The following 3 types of lead free solder are available through the service parts route.RFKZ03D01KS-----------(0.3mm 100g Reel)RFKZ06D01KS-----------(0.6mm 100g Reel)RFKZ10D01KS-----------(1.0mm 100g Reel)Note* Ingredient: tin (Sn) 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%3.4. Important Notice 1:(Other than U.S.A. and Canadian Market)1. The service manual does not contain the following information because of issues servicing to component level without neces-sary equipment/facilities.a. Schematic diagram, Block Diagram and P.C.B. layout of MAIN P.C.B. and SUB OPERATION P.C.B..b. Parts list for individual parts for MAIN P.C.B. and SUB OPERATION P.C.B..When a part replacement is required for repairing MAIN P.C.B. and/or SUB OPERATION P.C.B., replace as an assembledparts. (MAIN P.C.B./SUB OPERATION P.C.B.)2. The following category is/are recycle module part. please send it/them to Central Repair Center.• MAIN P.C.B. (VEP56149A)• SUB OPERATION P.C.B. (VEP59108A): Excluding replacement of Lithium Battery.