Daewoo K30 MECHA free download

File name K30 MECHA.pdf

S/M No. : K30MECHA Service Manual VCR MECHANISM UNIT (K30 MECHA DECK) DAEWOO ELECTRONICS CO., LTD. http : //svc.dwe.co.kr Feb 1999 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 (