Samsung DVD-V5450, Service Manual

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Circuit Operating Descriptions
13-9
Samsung Electronics
Table 13-1 : Prog. SW State in Each Mode
(3) Program SW Input
The mechanism state for each mode is shown in table 13-1 below. The mechanism state is classified into position,
and correlation between the switch position and mechanism state is shown in table 13-1, also.
(4) Motor Control
In case of Scorpio-2 Deck, Loading Motor Drive IC lies in Capstan Motor, not like Scorpio-1 Deck.
In detail, Capstan Motor Drive IC is designed to drive Loading Motor + Capstan Motor + Cylinder Motor in one
IC.
Table 13-2 : Motor Control Logic
POSION
CAM S/W START
ACTION MODE
A B C SEN
STANBY 0 0 0 0 Eject
POWER OFF 0 0 0 1 Unload POWER OFF
LOADING START 0 0 0 1 (Tape loading start point)
LOADING END 1 0 1 1 1 (Tape loading end point)
REV 1 1 0 X Reverse picture search, reverse SLOW
PLAY 0 1 0 X Play, Rec, F-PS, Still, SLOW, F-ADV
STOP 1 0 0 1 1 Stop (Play position 5 Min. over)
STOP 2 0 0 1 X (MAIN Break ON MODE)
FF/REW 1 1 0 0 X High speed Rew, Low speed FF
FF/REW 2 0 1 1 X High speed FF, Low speed Rew
CN604-PIN10 MOTOR
0 ~ 1V Reverse
2 ~ 3V Stop
4 ~ 5V Forward