1. INTRODUCTION
1.1. INTRODUCTION
This service manual contains technical information which will allow service personnel to
understand and service this model.
If the circuit is changed or modified, this information will be followed by supplementary service
manual to be filed with original service manual.
Note:
1. Adjustment procedures, Disassembly Procedures and Assembly
Procedures for Mechanism Chassis are separate volume from this
service manual.
Please refer to the service manual for R4-Mechanism Chassis.
(Order No. VRD0202010C8)
2. The Model No. is indicated on the Schematic Diagram and Circuit
Board Diagrams as follows.
Model No.
Indication Mark
NV-VP31GL
(GL)
NV-VP31GC
(GC)
NV-VP31GCS
(GCS)
1.2. ABOUT LEAD FREE SOLDER (PbF)
Distinction of PbF PCB:
PCBs (manufactured) using lead free solder will have a PbF stamp on the 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. 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.
2. SAFETY PRECAUTIONS
3
Summary of Contents for NV-VP31GL
Page 7: ...7 ...
Page 8: ...8 ...
Page 30: ...7 REMOVAL OF THE POWER C B A Remove Screw D Fig D3 Remove 2 Screws P Fig D7 30 ...
Page 34: ...8 2 Traverse P C B 1 Unscrew the screws 2 Remove the solders 3 Remove the connectors 34 ...
Page 73: ...18 2 DVD MECHANISM CHASSIS PARTS SECTION 73 ...
Page 74: ...74 ...
Page 75: ...18 3 CASING PARTS SECTION 75 ...
Page 76: ...76 ...
Page 77: ...18 4 PACKING PARTS SECTION 77 ...
Page 88: ...C5004 ECJ1VB1H103K CHIP CAPACITOR 88 ...
Page 101: ...101 ...
Page 103: ...IC7551 PNA4618M12VT IR RECEIVER 103 ...
Page 137: ... VEP06F50A NV VP31GL GC GCS FRONT SW C B A 1 A B 2 3 4 5 ...
Page 138: ...NV VP31GL GC GCS FRONT JACK C B A VEP04849A 1 A B C 2 3 4 5 ...
Page 142: ... REP3406A 1N 1 A B C D E F 2 3 4 FOIL SIDE COMPONENT SIDE NV VP31GL GC GCS TRAVERSE C B A ...
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