CCD-TRV128 (serv.man2) - Sony Movie Service Manual (repair manual). Page 44

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CCD-TRV128
6-42
2-2.
MSW Codes
• The lower parts of the data of addresses F6, FA and FE repre-
sent the MSW codes (mode switch, mechanism position) when
errors occurs.
• The upper parts of the data of addresses F6, FA and FE repre-
sent, when the mechanism position is to be moved, the MSW
codes at the start of movement (when moving the loading mo-
tor).
• The lower parts of the data of addresses F7, FB and FF repre-
sent the MSW codes of the desired movement when the mecha-
nism position is to be moved.
0001=1
0111=7
0011=3
0010=2
0111=7
0101=5
0111=7
0111=7
0000=0
0111=7
0100=4
0111=7
0110=6
Mechanism position
MODE SW C
MODE SW B
MODE SW A
MSB
←
Unloading
Releasing lock of 
cassette campartment
LS chassis movement range
Pinch roller is pressed
Pinch roller is detached
EJECT
BL
USE
LOAD
BL
REW
BL
BL
REC/PB
BL
TURN
BL
STOP
Loading
→
Contents
Position at which the cassette compartment lock is released. The mechanism will not move any
further in the unloading direction.
BLANC code. Between two codes. The mechanism will not be stopped by this code while it is
operating.
EJECT completion position. When the cassette is ejected, the mechanism will stop at this
position.
Code during loading/unloading. Code that is used while the LS chassis is moving.
Normal stop position. The pinch roller separates, the tension regulator returns, and the brakes of
both reels turn on.
Position at which is used when the pendulum gear swings from S to T or from T to S.
PB, REC, CUE, REV, PAUSE, FF positions.
The pinch roller is pressed and tension regulator is on.
REW position. REW are carried at this position.
The mechanism will not move any further in the loading direction.
Mechanism Position
EJECT
BL
USE
LOAD
STOP
TURN
REC/PB
REW
MSW Code
1
7
3
2
6
4
0
5

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