4.1. ABOUT LEAD FREE SOLDER (PbF)
This model uses lead free solder (PbF). For repair use only lead free handsolder.
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 the 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.
5. PREVENTION OF STATIC ELECTRICITY
DISCHARGE
The laser diode in the traverse unit (optical pickup) may brake down due to static electricity of
clothes or human body. Use due caution to electrostatic breakdown when servicing and
handling the laser diode.
5.1. GROUNDING FOR ELECTROSTATIC BREAKDOWN
PREVENTION
Some devices such as the DVD player use the optical pickup (laser diode) and the optical
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Содержание NV-VP23-33
Страница 13: ...C Stop unloading just before unloading would be completed D Then the tape becomes slack 13 ...
Страница 18: ...7 3 TOP PANEL 1 Unscrew the Screws 7 4 FRONT PANEL UNIT 1 Unscrew the Screw 2 Remove the Tabs 18 ...
Страница 22: ...7 9 MAIN PCB UNIT 1 Unscrew the Screws 2 Release the Connectors 3 Remove the Main PCB Unit 22 ...
Страница 23: ...7 10 POWER PCB UNIT 1 Unscrew the Screws 2 Release the Connectors 3 Remove the Power PCB Unit 23 ...
Страница 25: ...7 12 2 SERVICE POSITION OF THE POWER SUPPLY PCB 7 12 3 SERVICE POSITION OF THE DECODER PCB AND TERMINAL PCB 25 ...
Страница 39: ...10 3 FRONT HOLDER 1 Remove the Front Holder 10 4 CLAMP PLATE UNIT 39 ...
Страница 56: ...12 ABBREVIATIONS 56 ...
Страница 64: ...20 1 VCR CHASSIS PARTS SECTION 20 2 DVD CHASSIS PARTS SECTION 64 ...
Страница 65: ...20 3 CASING PARTS SECTION 65 ...
Страница 66: ...66 ...
Страница 67: ...20 4 PACKING PARTS SECTION 67 ...
Страница 86: ...LB1218 BEAD CORE J0JHC0000070 1 86 ...
Страница 122: ...5 VID_FROM_YC AV3_V_IN TO SYSCON JK4801 7 6 V_OUT_TO_YC FROM SS SECTION TO IO SECTION PP4801 PS7501 3 3 ...
Страница 123: ...NV VP23EG EC EP NV VP28EG EC NV VP33EG EC EB EBL EP VCR LUMINANCE CHROMINANCE 2 2 BLOCK DIAGRAM ...