Sony KV-20S90, KV-21SE43C A BOARD IC VOLTAGE LIST, IC541: AN5522 IC521: NJM4558M-TE2, A BOARD IC BLOCK DIAGRAMS

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KV-20S90 / 21SE43C
A BOARD IC VOLTAGE LIST
IC001 29 N/C 5 GND IC201 19 3.0
IC401
4 -12.9
PIN VOLT 30 4.9 6 4.9 PIN
V
OLT 20 2.6 PIN VOLT 5 0.0
1 0.9 31 4.9 7 GND 1 5.9 21 1.0 1 0.8 6 13.6
2 4.9 32 N/C 8 4.9 2 0.2 22 1.5 2 N/C 7 2.4
3 0.5 33 4.9 IC003 3 6.1 23 1.5 3 2.4 IC601
4 2.0 34 2.6 PIN
V
OLT 4 0.2 24 1.5 4 12.6 PIN VOLT
5 0.0 35 N/C 1 GND 5 6.1 25 N/C 5 2.4 1 -55.3
6 0.1 36 4.9 2 GND 6 9.1 26 N/C 6 GND 2 -57.2
7 0.0 37 4.9 3 GND 7 5.3 27 N/C 7 0.8 3 94.8
8 N/C 38 4.9 4 GND 8 GND 28 N/C 8 6.5 4 -41.6
9 N/C 39 4.8 5 4.8 IC301 29 0.0 9 GND 5 -57.1
10 0.0 40 N/C 6 4.8 PIN
V
OLT 30 4.6 10 6.5 IC602
11 0.1 41 0.0 7 GND 1 3.4 31 4.6 11 6.5 PIN VOLT
12 4.9 42 0.1 8 5.0 2 N/C 32 4.6 12 GND 1 2.5
13 0.0 43 4.9 IC004 3 1.3 33 9.0 13 6.5 2 GND
14 4.9 44 0.1 PIN
V
OLT 4 5.3 34 4.9
IC521
3 10.9
15 N/C 45 N/C 1 4.9 5 4.9 35 4.9 PIN VOLT All Voltages are in V
16 -0.1 46 4.9 2 4.9 6 4.5 36 N/C 1 N/C
17 -0.3 47 N/C 3 GND 7 N/C 37 N/C 2 N/C
18 4.9 48 N/C IC200 8 5.1 38 N/C 3 N/C
19 4.9 49 0.0 PIN
V
OLT 9 N/C 39 N/C 4 GND
20 1.8 50 4.6 1 5.9 10 GND 40 GND 5 8.6
21 0.0 51 4.6 2 0.2 11 N/C 41 5.3 6 9.8
22 2.2 52 4.6 3 6.1 12 2.4 42 7.2 7 1.3
23 GND IC002 4 0.2 13 3.5 43 5.5 8 12.9
24 2.2 PIN VOLT 5 6.1 14 3.5 44 9.1
IC541
25 2.3 1 7.5 6 9.1 15 N/C 45 5.3 PIN VOLT
26 GND 2 GND 7 5.3 16 7.6 46 N/C 1 2.6
27 4.9 3 5.4 8 GND 17 N/C 47 1.9 2 12.9
28 N/C 4 GND 18 0.8 48 N/C 3 -11.1
IC541: AN5522
IC521: NJM4558M-TE2
A BOARD IC BLOCK DIAGRAMS
1234567
Pump-Up
Thermal Protections
Amp
-
+
Inverting Input
Vcc
Pump Up Out
GND
Output
Output Vcc
Non-Inverting Input