2.3. SERVICE CAUTION BASED ON LEGAL RESTRICTIONS
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 this
equipment 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 degrees C (86°F) more than that of the normal solder.
Service 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.
- 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 PCB 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 the lead free solder.
- Use the soldering iron (more than 70W) equipped with the temperature
6
Summary of Contents for DMR-EH65EC
Page 45: ...10 7 DV IN P C B 1 Remove 1 Screw to remove DV IN P C B 45 ...
Page 54: ...Caution When replacing HDMI P C B pay attention as below 11 MEASUREMENTS AND ADJUSTMENTS 54 ...
Page 68: ...16 2 PACKING ACCESSORIES SECTION 68 ...
Page 75: ...C3017 F1H1C104A042 CHIP CAPACITOR 1 1 2 3 75 ...
Page 77: ...C4028 F2A1V100A534 ALU ELEC CAPACITOR 1 1 2 3 77 ...
Page 79: ...C56133 ECJ1VB1A105K CHIP CAPACITOR 1 1 2 3 79 ...
Page 81: ...C7517 ECJ1VC1H180J CHIP CAPACITOR 1 1 2 3 81 ...
Page 86: ...LB7507 D0YBR0000020 CHIP RESISTOR 1 1 2 3 86 ...
Page 89: ...R3008 D0GB102JA057 CHIP RESISTOR 1 1 2 3 89 ...
Page 91: ...R4057 D0HB123ZA002 METAL FILM RESISTOR 1 1 2 3 91 ...
Page 93: ...R56140 ERJ2GEJ8R2X RESISTOR 1 1 2 3 93 ...
Page 95: ...R7501 D0GB102JA057 CHIP RESISTOR 1 1 2 3 95 ...
Page 97: ...R7579 D0GB223JA057 CHIP RESISTOR 1 1 2 3 97 ...
Page 103: ...Ref No MODE E C B REC 3 8 1 2 3 1 PLAY 3 8 1 2 3 1 STOP 3 8 1 2 3 1 Q7802 ...
Page 154: ...DMR EH65EC DMR EH65EP DV IN P C B VEP73135A 1B 1D P37001 P37002 ...
Page 156: ...JW7001 S7002 DMR EH65EC DMR EH65EP FRONT VEP70161A ...