Sharp CD-ES9 Service Manual - Page 84
Block Diagram Of Ic
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+ - + - + - + + - + + - IC2 VHiLA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261) 1 CH3 2 3 4 5 CH2 6 7 8 9 CH1 Pre Drive Pre Drive CD-ES900/CD-ES99 + - 36 CH4 35 + - 34 33 32 CH5 31 30 29 28 CH6 VOLTAGE CONTROL AMP + 10 22k 11 11k + 12 1k 22k 13 11k + 14 1k 22k 15 11k + 16 1k 22k 17 11k + 18 1k + BTL DUFFER AMP For 1/2 VCC Refcronce voltage TSD Bandgad 27 26 25 DUFFER AMP For VREF 24 23 Mode select 22 21 20 Mode select 19 Figure 8-5 BLOCK DIAGRAM OF IC 8 - 5
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CD-ES900/CD-ES99
8 – 5
IC2 VHiLA6261//-1: Focus/Tracking/Spin/Sled Driver (LA6261)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
11k
22k
1k
1k
1k
1k
11k
11k
11k
22k
22k
22k
-
+
-
+
Pre Drive
Pre Drive
+
-
+
-
+
-
Refcronce
voltage
DUFFER AMP
For 1/2 VCC
DUFFER AMP
For VREF
TSD
Bandgad
BTL
Mode
select
Mode
select
CH4
CH5
CH6
CH3
CH2
CH1
VOLTAGE
CONTROL AMP
Figure 8-5 BLOCK DIAGRAM OF IC