Samsung VR400G, SV-400GUM, VR400PC, SV-400GP free download

File name Samsung VR400G_SM.pdf

VIDEO CASSETTE RECORDER VR400G/400P VR400PC/400RC SV-400GP/400PP/400RP SV-400GUP/400PUP/400RUP SV-400GUM/400PUM/400RUM SERVICE MANUAL VR400G/VR400PC/SV-400GP/400GUP/400GUM SERVICE VIDEO CASSETTE RECORDER Manual AC68-00001A). CONTENTS 1. Precautions 2. Alignment and Adjustment 3. Exploded View and Parts List 4. Electrical Parts List 5. Schematic Diagrams For mechanical disassembly and adjustment, refer to the "Mechanical Manual" (DX-9R ELECTRONICS WE PO R EJECT STOP REW F.F PLAY © Samsung Electronics Co., Ltd. NOV. 2000 Printed in Korea AC68-01289A IMPORTANT SERVICE GUIDE MODE SWITCH (PROGRAM SWITCH) ASSEMBLY POINT 1) When installing the ass'y full deck on the Main PCB, be sure to align the assembly point of mode switch. Fig. 1 HOW TO EJECT THE CASSETTE TAPE (If the unit does not operate on condition that tape is inserted into housing ass'y) 1) Remove the Holder Worm OE and the gear worm ґ. (See Fig. 2) 2) Turn the Gear Worm Wheel counterclockwise in the direction of arrow with screw driver. (See Fig. 2) 3) When Slider S, T are approached in the position of unloading, rotate holder Clutch counterclockwise after inserting screw driver in the hole of frame's bottom in order to wind the unwounded tape. (Refer to Fig. 3) (If you rotate Gear Worm Wheel continuously when tape is in state of unwinding, you may cause a tape contamination by grease and tape damage. Be sure to wind the unwounded tape in the state of set horizontally.) 4) Rotate Gear Worm Wheel counterclockwise using screw driver again up to the state of eject mode and then pick out the tape. (Refer to Fig. 2) GEAR WORM WHEEL SCREW DRIVER FRAME ґ GEAR WORM OE HOLDER WORM Fig. 2 Fig. 3 1. Precautions 1. Be sure that all of the built-in protective devices are replaced. Restore any missing protective shields. 2. When reinstalling the chassis and its assemblies, be sure to restore all protective devices, including : control knobs and compartment covers. 3. Make sure that there are no cabinet openings through which people--particularly children --might insert fingers and contact dangerous voltages. Such openings include the spacing between the picture tube and the cabinet mask, excessively wide cabinet ventilation slots, and improperly fitted back covers. If the measured resistance is less than 1.0 megohm or greater than 5.2 megohms, an abnormality exists that must be corrected before the unit is returned to the customer. 4. Leakage Current Hot Check (See Fig. 1-1) : Warning : Do not use an isolation transformer during this test. Use a leakage current tester or a metering system that complies with American National Standards Institute (ANSI C101.1, Leakage Current for Appliances), and Underwriters Laboratories (UL Publication UL1410, 59.7). 5. With the unit completely reassembled, plug the AC line cord directly the power outlet. With the unit's AC switch first in the ON position and then OFF, measure the current between a known earth ground (metal water pipe, conduit, etc.) a