Alpine PKG-2000P, Service Manual

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13 AGND Gnd Analog Ground 0
14 VA PI Analog Power 5.02
15 AOUTL Out Left Analog Output 2.22
16 MUTEC In Mute Control 4.99
Headphone Driver APA2308 (U9)
Pin No. Type Function Description Voltage(V)
1 Out Out A 2.49
2 In Inverting Input A 2.49
3 In Non-Inverting Input A 2.49
4 Gnd Vss 0
5 In Non-Inverting Input B 2.49
6 In Inverting Input B 2.49
7 Out Out B 2.49
8 PI VDD 5.01
Photo IC TPS850 (U10)
Pin No. Name Voltage(V)
1 GND 0
2 GND 0
3 Vcc 3.29
4 OUT 2.61
Dual 4-Channel Analog Multiplexer/Demultiplexer CD4052(U12)
Pin No. Type Function Voltage(V)
1 In 0y 3.59
2 In 2y 4.54
3 Out y 3.59
4 In 3y 3.19
5 In 1y 4.54
6 In INH 0
7 Gnd VEE 0
8 Gnd VSS 0
9 In B 0.11
10 In A 0.11
11 In 3x 2.95
12 In 0x 3.61
13 Out X 3.60
14 In 1x 4.53
15 In 2x 4.53
16 PI VDD 8.05
Amplifier BA3121F (U13,U14)
Pin No. Type Function Voltage(V)
1 Out Out1 4.55
2 In Vm1 4.49
3 In IN1 4.45
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