Ic201 (Ba6247Fp-Y) Motor Driver Ic Operation - Sony XES-Z50 Service Manual

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7-2. IC201 (BA6247FP-Y) MOTOR DRIVER IC OPERATION

(DRIVER BOARD)
The elevator up/down motor connected between pin @™ and pin !• of IC201 is as M501, and the disc load/save motor connected
between pin 1 and pin !• of IC201 is as M502.
When the IC port logic is pin @™ > pin !•, pin 1 > pin !•, the rotating direction of M501 and M502 becomes normal.
ROTATION TRUTH TABLE
1 When MB=MC: both M501 and M502 are stop. (MA value is free.)
2 When MB≠MC:
Pin of IC301
MA MB
(pin 8) (pin 7)
"L" "L"
"H" "L"
"L" "H"
"H" "H"
TE
L 13942296513
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Rotating direction
of motor
MC
M501 M502
(pin 6)
"H" Reverse Stop
"H" Normal Stop
"L" Stop Reverse
"L" Stop Normal
Disc load/save
1
M502
(1–18)
!•
x ao
y
i
– 76 –
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8
Pin of IC201
pin @™ pin 1
"L" OPEN
"H" OPEN
OPEN "L"
OPEN "H"
Elevator up/down
!•
M501
(22–18)
@™
Q Q
3 6 7 1 3
u163
.
2 9 9 4 2 8
Operation
pin !•
"H" Elevator up
"L" Elevator down
"H" Disc load
"L" Disc save
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9