Sharp DV-560H (serv.man6) Service Manual ▷ View online
29
DVD-Series
5-3 Loading Motor Control
To move the TRAYMECHA position, control the loading motor driver IC with the 2 control signal
output.
output.
●
LOAD + Loading motor is running forward
●
LOAD – Loading motor is running in reverse
Output is made following the logic listed below:
Loading Running Forward
Loading Running in Reverse
Loading Halt
L
L
Loading Running Forward
H
L
Loading Running in Reverse
L
H
Loading Brake
H
H
However, the following high and low-speed modes are to be adopted in good command.
(1) High-speed mode
Constant drive (Forward output is “H” while running forward. Reverse output is “H” while
running in reverse.)
running in reverse.)
(2) Low-speed mode
Execute output while setting rotation output (forward and reverse) and stop output as a pulse
condition, then rotate it under low-speed motor.
The pulse cycle is set to be 14m/sec for rotation output and 6m/sec for stop output.
condition, then rotate it under low-speed motor.
The pulse cycle is set to be 14m/sec for rotation output and 6m/sec for stop output.
5-4 Tray 1 Insert Action
While Tray 1 is “close”, start the Tray 1 discharge action via key operation. Start the loading motor
with high-speed mode for reverse rotation, then change it to low-speed mode for reverse rotation
1.2 second after the detection of the rise of SW2A. g:then, move it to the Tray 1 “open” position.
If the discharge action is not completed in 6 seconds, it stops once and begins reverse insert action.
with high-speed mode for reverse rotation, then change it to low-speed mode for reverse rotation
1.2 second after the detection of the rise of SW2A. g:then, move it to the Tray 1 “open” position.
If the discharge action is not completed in 6 seconds, it stops once and begins reverse insert action.
5-5 Tray 1 Discharge Action
While Tray 1 is “open”, start the Tray 1 insert action via key operation or by detecting SW2B input
rise. Start the loading motor with high-speed mode for forward rotation, then change it to low-
speed mode for forward rotation 1.2 second after the detection of the rise of SW2B. Then, move
it to the Tray 1 “close” position.
If the insert action is not completed in 6 seconds, it stops once and begins reverse discharge action.
rise. Start the loading motor with high-speed mode for forward rotation, then change it to low-
speed mode for forward rotation 1.2 second after the detection of the rise of SW2B. Then, move
it to the Tray 1 “close” position.
If the insert action is not completed in 6 seconds, it stops once and begins reverse discharge action.
Forward Rotation Output
14msec
14msec
14msec
6msec
6msec
6msec
.....
Output Signal
Loading Condition
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5-6 Tray 1 Reverse Action
(1) While Tray 1 is inserted, start the Tray 1 discharge action via operating keys. After the Brake
Mode has been on for 150msec, start the loading motor in low-speed mode for reverse, then
move the tray to the Tray 1 “open” position.
move the tray to the Tray 1 “open” position.
(2) While Tray 1 is discharged, start Tray 1 insert action via operating keys.
After the Brake Mode has been on for 150msec., start the loading motor in low-speed forward
mode, then move the tray to the Tray 1 “close” position.
mode, then move the tray to the Tray 1 “close” position.
5-7 Tray 2 Insert Action
While Tray 2 is “open”, start the Tray 2 insert action via key operation or by detecting SW1B input
rise. Start the loading motor with high-speed mode for reverse rotation, then change it to low-speed
mode for forward rotation 1.2 second after the detection of the rise of SW1B. c:then, move it to
the Tray 2 “close” position.
If the insert action is not completed in 6 seconds, it stops once and begins reverse discharge action.
rise. Start the loading motor with high-speed mode for reverse rotation, then change it to low-speed
mode for forward rotation 1.2 second after the detection of the rise of SW1B. c:then, move it to
the Tray 2 “close” position.
If the insert action is not completed in 6 seconds, it stops once and begins reverse discharge action.
5-8 Tray 2 Discharge Action
While Tray 2 is “close”, start the Tray 2 discharge action via key operation. Start the loading motor
with high-speed mode for forward rotation, then change it to low-speed mode for forward rotation
1.2 second after the detection of the rise of SW1A. a:then, move it to the Tray 1 “open” position.
If the discharge action is not completed in 6 seconds, it stops once and begins reverse insert action.
with high-speed mode for forward rotation, then change it to low-speed mode for forward rotation
1.2 second after the detection of the rise of SW1A. a:then, move it to the Tray 1 “open” position.
If the discharge action is not completed in 6 seconds, it stops once and begins reverse insert action.
5-9 Tray 2 Reverse Action
(1) While Tray 2 is inserted, start the Tray 2 discharge action via operating keys. After the Brake
Mode has been on for 150msec, start the loading motor in low-speed mode for forward, a:then
move the tray to the Tray 2 “open” position.
move the tray to the Tray 2 “open” position.
(2) While Tray 2 is discharged, start Tray 2 insert action via operating keys.
After the Brake Mode has been on for 150msec., start the loading motor in low-speed reverse
mode, c:then move the tray to the Tray 2 “close” position.
mode, c:then move the tray to the Tray 2 “close” position.
5-10 PICKMECHA Moving Action from the Tray 1 to the Tray 2
side
With Tray 2 “closed” (or when PICKMECHA has finished moving from the Tray 2 side to the Tray
1 side), start the moving action of PICKMECHA from Tray 1 side to the Tray 2 side by key
operation.
Start the loading motor under high-speed mode. After 1.2 second from detection of the rise in
SW1A input, set reverse low-speed mode, d: then move PICKMECHA to the end position from
the Tray 1 to the Tray 2 side.
1 side), start the moving action of PICKMECHA from Tray 1 side to the Tray 2 side by key
operation.
Start the loading motor under high-speed mode. After 1.2 second from detection of the rise in
SW1A input, set reverse low-speed mode, d: then move PICKMECHA to the end position from
the Tray 1 to the Tray 2 side.
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5-11 PICKMECHA Moving Action from the Tray 2 to the Tray 1
side
With Tray 1 “closed” (or when PICKMECHA has finished moving from the Tray 1 side to the Tray
2 side), Start the moving action of PICKMECHA from Tray 2 side to the Tray 1 side by key
operation.
Start the loading motor under high-speed mode for forward. After 1.2 second from detection of
the rise in SW2A input, set forward low-speed mode, g: then move PICKMECHA to the end
position from the Tray 2 to the Tray 1 side.
2 side), Start the moving action of PICKMECHA from Tray 2 side to the Tray 1 side by key
operation.
Start the loading motor under high-speed mode for forward. After 1.2 second from detection of
the rise in SW2A input, set forward low-speed mode, g: then move PICKMECHA to the end
position from the Tray 2 to the Tray 1 side.
5-12 PICKMECHA Reverse Action
(1) While moving PICKMECHA from the Tray 1 to the Tray 2 side, start PICKMECHA
movement from the Tray 2 side to the Tray 1 side by key operation. After Brake Mode has
been on for 150msec., start loading motor in low-speed forward mode, g: then move
PICKMECHA to the end position from the Tray 2 to the Tray 1 side.
been on for 150msec., start loading motor in low-speed forward mode, g: then move
PICKMECHA to the end position from the Tray 2 to the Tray 1 side.
(2) While moving PICKMECHA from the Tray 1 to the Tray 2 side, start PICKMECHA
movement from the Tray 2 side to the Tray 1 side by key operation. After Brake Mode has
been on for 150msec., start loading motor in low-speed forward mode, d: then move
PICKMECHA to the end position from the Tray 2 to the Tray 1 side.
been on for 150msec., start loading motor in low-speed forward mode, d: then move
PICKMECHA to the end position from the Tray 2 to the Tray 1 side.
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6. TRAYMECHA Timing Chart
TRAYMECHA Timing Chart (2)
Condition of working
When Tray 1 is manually inserted
Working Mode
Tray 1 Open
_
Tray 1 Close
SW2B
SW2A
LOAD ( + )
LOAD ( – )
*1. Point of loading to start with key operation
*2. Active point of SW2B
*3. Recognition time of SW2B”H”
*4. Switching point from high-speed mode to low-speed mode.
*5. Recognition time of SW2A”L”
*6. Short break time for loading motor (During this time, 100mS period after 50mS passes, overrun check for motor stop
*2. Active point of SW2B
*3. Recognition time of SW2B”H”
*4. Switching point from high-speed mode to low-speed mode.
*5. Recognition time of SW2A”L”
*6. Short break time for loading motor (During this time, 100mS period after 50mS passes, overrun check for motor stop
position is performed. If SW2A turns to “H” during this time, reverse pulse drive is operated. When SW2A turns to “L”
again, it goes back to Break Mode. This action will be repeated a maximum of 3 times.)
again, it goes back to Break Mode. This action will be repeated a maximum of 3 times.)
*7. Waiting time before moving to the next mode.
TRAYMECHA Timing Chart (1)
Condition of working
When Tray 1 is manually inserted
Working Mode
Tray 1 Open
_
Tray 1 Close
SW2B
SW2A
LOAD ( + )
LOAD ( – )
*1. Active point of SW2B by manual insert
*2. Recognition point of SW2B”H” (Starting point of loading)
*3. Recognition time of SW2A”L”
*4. Short break time for loading motor (During this time, 100mS period after 50mS passes, overrun check for motor stop
*2. Recognition point of SW2B”H” (Starting point of loading)
*3. Recognition time of SW2A”L”
*4. Short break time for loading motor (During this time, 100mS period after 50mS passes, overrun check for motor stop
position is performed. If SW2A turns to “H” during this time, reverse pulse drive is operated. When SW2A turns to “L”
again, it goes back to Break Mode. This action will be repeated a maximum of 3 times.)
again, it goes back to Break Mode. This action will be repeated a maximum of 3 times.)
*5. Waiting time before moving to the next mode.
∗
1
∗
2
∗
3
∗
4
∗
5
6ms
min.
min.
14ms
150ms
100ms
6ms
∗
5
∗
6
∗
7
∗
4
14ms
1200ms
150ms
100ms
6ms
∗
3
∗
1
∗
2
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