Read Sharp DV-700 (serv.man3) Service Manual online
DV-700S
DV-760S/H
DV-760S/H
11-14. IC702 BA6796FP
MOTOR DRIVER
T.S.D ; Thermal shutdown
D; Drive buffer
Unit of resistance is [
Ω
].
• Mode change table
CTL1 and CTL2
Note: OFF state: Output has high impedance.
For F and R (CH5 control, valid only when CH5 is ON)
F
R
Output mode
L
L
High impedance
L
H
Reversing (reverse)
H
L
Forward rotation (forward)
H
H
Brake
Pin No.
Terminal name
Operation function
Pin No. Terminal name
Operation function
1
OPOUT
Ope amp. output terminal
15
CH2-OUT-
CH2 Negative output terminal
2
CH4-IN
CH4 Input terminal
16
CH2-OUT+
CH2 Positive output terminal
3
CH4-IN’
CH4 Gain adjustment input terminal
17
CH1-OUT-
CH1 Negative output terminal
4
CTL1
Contorol 1 input terminal
18
CH1-OUT+
CH1 Positive output terminal
5
CTL2
Contorol 2 input terminal
19
CH1-IN
CH1 Input terminal
6
FWD
Tray forward input terminal
20
CH1-IN’
CH1 Input terminal for gain adjustment
7
REV
Tray reverse input terminal
21
VCC
VCC
8
TRAY-IN
Tray input terminal
22
CH2-IN
CH2 Input terminal
9
GND
Sub-straight GND
23
CH2-IN’
CH2 Input terminal for gain adjustment
10
CH5-OUT-
Tray negative output terminal
24
CH3-IN
CH3 Input terminal
11
COM-OUT
Tray positive output terminal/CH4
25
CH3-IN’
CH3 Input terminal for gain adjustment
negative output terminal
12
CH4-OUT+
CH4 Positive output terminal
26
VREF-IN
Bias amp. input terminal
13
CH3-OUT+
CH3 Positive output terminal
27
OPIN+
Operational amplifier nonreverse input terminal
14
CH3-OUT-
CH3 Negative output terminal
28
OPIN-
Operational amplifier reverse input terminal
Note 1: Positive and negative output have polarity with respect to input. (An example: 19 pin input ‘H’: 18 pin output ‘H’)
Note 2: Tray positive output and tray negative output have polarity with respect to mode. (An example: 11 pin output
‘H’ in FORWARD mode)
28
27
26
25
24
23
22
21
20
19
18
17
16
15
CH2-OUT
CH1-OUT
CH1-IN
CH2-IN
CH3-IN
10K
10K
13.3K
13.3K
13.3K
10K
+
-
Level shift
Level shift
Level shift
Level shift
VCC
D
D
D
D
D
D
D
D
D
V/I
T.S.D
26.6K
10K
CTL1
CTL2
PWD
REV
LOGIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
CH4-IN
CH5-IN
CH5-OUTCH4-OUT CH3-OUT
+
-
+
-
+
-
+
-
• Block Diagram
11-18
CTL1
CTL2
CH1
CH2
CH3
CH4
CH5
L
L
OFF
ON
L
H
H
L
ON
OFF
H
H
OFF
ON
OFF
ON
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