Samsung TX20C53X/XET Service Manual page 33

Alignment and Adjustments (Electrical)
5-5-3 PROGRAM SW
SW
I
POSITION
SW A
SW B
SW C
OFF
ON
S/SEN
OFF
ON
E/SEN
STANDBY
FL SW : ON-less than 3.5v / OFF-more than 3.5v (Input to A/D port)
START / END SENSOR : ON-"L", OFF-"H"
POSITION
STANBY
POWER OFF
LOADING START
LOADING END
REV
PLAY
STOP1
STOP 2
FF / REW 1
FF / REW 2
5-10
a b
II
POWER
OFF
LOAD
END
LOAD
START
PROGRAM S/W
A
B
0
0
0
0
0
0
1
0 ->1
1
1
0
1
0
0
0
0
1
0
0
1
IV V
III c d
PLAY SPT1 SPT2
REV
: DON'T CARE
TAPE SEN
C
S
F
0
0
0
0
1
X
0
1
X
1
1
X
0
X
X
0
X
X
1
1
X
1
X
X
0
X
X
1
X
X
VII
e VI
f
F/R1 F/R2
OPERATION MODE
Eject
Unload POWER OFF
(Tape loading start point)
(Tape loading end point)
Reverse Picture Ssarch, Reverse SLOW
Play, Rec,F-PS,Still,SLOW,F-ADV
Stop (Play position 5 Min. over)
(MAIN Break ON MODE)
High speed Rew, Low speed FF
High speed FF, Low speed Rew
X : DON'T CARE
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