Daewoo K-MECHA free download

File name K-MECHA.pdf

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. DESCRIPTION OF THE MECHANISM 1-1 CHARACTERISTIC OF THE K-DECK MECHANISM 1) K-MECHA DECK follows the VHS standard. 2) K-MECHA DECK uses three motors (DRUM MOTOR, CAPSTAN MOTOR and L/C MOTOR) 3) K-MECHA DECK uses L/C MOTOR to drive FRONT LOADING. 4) K-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) K-MECHA DECK is operated by 7 MODES (EJECT/INITIAL/REV/IDLE/PLAY, STOP SLOW/BRAKE/FF , & REW). 6) K-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) K-MECHA DECK is seperated from the Main PCB. When assembling, it is connected by B-B TYPE CONNECTOR. The CAPSTAN MOTOR and DRUM MOTOR of K-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-A (2 HEAD MONO) CN-A (2 HEAD Hi-Fi) CN-1 1 V-R 1 A-R 1 DRUM M/T 12V 2 COMMON 2 COMMON 2 DRUM SPP CTL 3 V-L 3 A-L 3 DRUM PG 4 GND 4 GND 4 NON CONTACT 5 V-R 5 GND 6 COMMON 6 DRUM FG 7 V-L CN-B 1 FE HEAD 2 GND CN-A (4 HEAD MONO) CN-C CN-2 1 SP-L 1 L/C MT (+) 1 EVER 5V 2 COMMON 2 L/C MT (