Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo Video K50 K30-Mecha Deck k5030mecha_168

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k5030mecha_168


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                         S/M No. : K3050MECHA




        Service Manual
   VCR MECHANISM UNIT
                (K50 / K30-MECHA DECK)




DAEWOO ELECTRONICS CO., LTD.
http : //svc.dwe.co.kr         March. 2000
   CONTENTS
1. MECHANISM DESCRIPTION .................................................................................................2
2. ASSEMBLY DIAGRAM & MAJOR PARTS CHECK ..............................................................5
3. DISASSEMBLY AND REPLACEMENT ................................................................................12
4. MECHANICAL ADJUSTMENT..............................................................................................22
5. ADJUSTMENT OF TAPE TRANSPORTING SYSTEM.......................................................27
6. EXPLODED VIEW AND PARTS LIST....................................................................................37




                                                 1
1.DESCRIPTIONOFTHEMECHANISM
 1-1 CHARACTERISTIC OF THE K30-DECK MECHANISM
1) K30-MECHA DECK follows the VHS standard.
2) K30-MECHA DECK uses three motors (DRUM MOTOR, CAPSTAN MOTOR and L/C MOTOR)
3) K30-MECHA DECK uses L/C MOTOR to drive FRONT LOADING.
4) K30-MECHA DECK recognizes each mode by using a 4-BIT MODE signal. This 4-BIT MODE signal is
   generated by the CAM SWITCH which is driven by the L/C MOTOR.
5) K30-MECHA DECK is operated by 7 MODES (EJECT/INITIAL/REV/IDLE/PLAY, STOP           ,
   SLOW/BRAKE/FF & REW).
6) K30-MECHA DECK reduces the mode shifting time, that is, picture playing time by using the FULL
   LOADING SYSTEM that has the DRUM wrapped by the tape.
7) K30-MECHA DECK is seperated from the Main PCB. When assembling, it is connected by B-B TYPE
   CONNECTOR.
   The CAPSTAN MOTOR and DRUM OUTPUT of K30-MECHA DECK and the MAIN PCB DECK are
   directly connected without using cable.




                                                2
1-2 WIRE DIAGRAM
1-2-1) WIRE DIAGRAM




                      3
1-2-2) CONNECTOR PIN ARRANGEMENT

CN-1 (2 HEAD MONO)       CN-A
 1    SP-L                 1    GND
 2    COMMON               2    DRUM SPD CTL
 3    SP-R                 3    Vcc
 4    GND                  4    DRUM FG
                           5    DRUM PG
                           6    NON CONNECT
                           7    NON CONNECT


                         CN-B
                           1    FE HEAD
                           2    GND



CN-1 (4 HEAD MONO)       CN-C                  CN-2
 1    SP-L                 1    L/C MT (+)      1     EVER 5V
 2    COMMON               2    L/C MT (



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