5 Handling the Lead-free Solder
5.1 About lead free solder (PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufactured) using lead free solder will have a PbF
stamp on the P.C.B.
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.
In case of soldering iron with temperature control,please set
it to 700 ± 20°F (370 ± 10°C).
· Pb free solder will tend to splash when heated too
high (about 1100°F/600°C).
· When soldering or unsoldering, please completely
remove all of the solder on the pins or solder area, and be
sure to heat the soldering points with the Pb free solder until
it melts enough.
6 Handling Precautions For Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity
of clothes or human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
Handling of traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).
3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin,
finish the job in as short time as possible.
4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
5
Summary of Contents for SC-TM23
Page 8: ...9 Operation Procedures 8 ...
Page 44: ...44 15 Block Diagram ...
Page 45: ...45 ...
Page 46: ...46 ...
Page 47: ...47 6601 6601 565 ...
Page 48: ...48 ...
Page 49: ...49 565 9 ...
Page 50: ...50 ...
Page 51: ...51 16 Voltage Measurement ...
Page 52: ...52 ...
Page 54: ...17 1 A CD Servo Circuit 54 ...
Page 55: ...55 ...
Page 56: ...56 17 2 B Main Tuner Circuit ...
Page 57: ...57 17 3 B Main Circuit ...
Page 58: ...58 ...
Page 59: ...59 ...
Page 60: ...60 ...
Page 61: ...17 4 C Panel Circuit 61 ...
Page 62: ...62 ...
Page 64: ...64 17 6 H Power Circuit ...
Page 65: ...65 17 7 I Deck Circuit J Mechanism Circuit ...
Page 66: ...66 ...
Page 68: ...68 18 2 B Main P C B ...
Page 69: ...69 ...
Page 70: ...70 18 3 C Panel P C B ...
Page 71: ...71 ...
Page 72: ...72 18 4 D Transformer P C B ...
Page 73: ...73 18 5 E CD Detect P C B F Spindle Position P C B G CD Loading P C B K Tuner Pack P C B ...
Page 74: ...18 6 H Power P C B 74 ...
Page 75: ...75 ...
Page 76: ...18 7 I Deck P C B J Deck Mechanism P C B 76 ...
Page 77: ...77 19 Wiring Connection Diagram ...
Page 78: ...78 20 Illustration of IC s Transistors and Diodes ...
Page 82: ...82 22 Troubleshooting Guide ...
Page 86: ...86 23 1 2 Deck Mechanism Parts List ...
Page 89: ...89 23 2 2 CD Loading Mechanism Parts List ...
Page 123: ...2 Connection of the Speaker Wiring 3 Cabinet Parts Location 123 ...