Sharp 27DV-S100 Service Manual page 92

IC7701 BA5984FP
Pin No. Terminal name
1 LD-FWD Loading driver FWD input terminal
2 SL_IN(+) CH1 Former stage amplifier nonreverse input terminal
3 SL_IN(-) CH1 Former stage amplifier reverse input terminal
4 SLOUT CH1 Former stage amplifier output terminal
5 SP_IN(+) CH2 Former stage amplifier nonreverse input terminal
6 SP_IN(-) CH2 Former stage amplifier reverse input terminal
7 SP_OUT CH2 Former stage amplifier output terminal
8 VCC Power terminal
9 LD(-) Loading driver Negative output
10 LD(+) Loading driver Positive output
11 SPIN(-) Driver CH2 Negative output
12 SPIN(+) Driver CH2 Positive output
13 SL(-) Driver CH1 Negative output
14 SL(+) Driver CH1 Positive output
Note 1: Positive and negative output the driver have polarity with respect to input. (An example: 4 pin terminal voltage
'HIGH': 14 pin terminal voltage 'HIGH')
• Block Diagram
28 27
Loading Driver
REV OUTF
FWD OUTR
1 2
MOTOR DRIVER
Operation function
26 25 24 23 22
10K
10K
16K
-
+
+
10K
-
16K
10K
3 4 5 6 7
Pin No. Terminal name
15 V04(+) Driver CH4 Negative output
16 V04(-) Driver CH4 Positive output
17 V03(+) Driver CH3 Negative output
18 V03(-) Driver CH3 Positive output
19 GND Ground terminal
20 BIAS Bias input terminal
21 MUTE Mute control terminal
22 FO_OUT CH3 Former stage amplifier output terminal
23 FO_IN(-) CH3 Former stage amplifier reverse input terminal
24 FO_IN(+) CH3 Former stage amplifier nonreverse input terminal
25 TR_OUT CH4 Former stage amplifier output terminal
26 TR_IN(-) CH4 Former stage amplifier reverse input terminal
27 TR_IN(+) CH4 Former stage amplifier nonreverse input terminal
28 REV Loading driver REV input terminal
21 20 19 18
10K
MUTE
10K
16K
-
+
+
-
16K
10K
VCC
10K
8 9 10 11
93
27DV-S100
27DV-CS10
Operation function
17 16 15
10K
10K 10K
10K
10K
10K
- +
Level
Shift
- +
Level
Shift
Level
Shift
- +
Level
Shift
- +
10K
10K
10K
10K
10K
10K
12 13 14