Ic And Transistor Lead Identification - Casio CTK-750 Service Manual

IC LEAD IDENTIFICATION AND INTERNAL DIAGRAM
LRCK
LRSEL/RSI
SI/LSI
CLK
4/8 fs SEL
D.GND
2
VDD
3
VSS
TC74HC04AP
1A 1
1Y 2
2A 3
2Y 4
3A 5
3Y 6
GND 7
UPD6376CX
MAIN DAC
13
SUB DAC
14
15
SUB DAC
16
1
MAIN DAC
2
3 4 5 12
A.GND
N.C. D.VDD
S8053ANO
1 OUT
VCC
14 VCC
13 6A
12 6Y
11
5A
10
5Y
9 4A
8 4Y
— 21 —
11 L.OUT
10
L.REF
9 R.REF
6
R.OUT
7 8
A.VDD
1 2 3
M5218APR
8
7 6 5
-
+
-
+
GND
1 2
3 4
PC900V
VCC
GND
6 5 4
NC
1 2 3