Denon AVR-X4300H, Service Manual

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NJU72343 (INPUT : IC471, IC491)
No. Symbol Function No. Symbol Function
1 AREF Analog reference potential 17 DATA IC control data input
2 ADR Address selection 18 CLOCK IC control clock input
3 InA2 Ach input2 19 VDDOUT Digital power supply output
4 InB2 Bch input2 20 AREF Analog reference potential
5 InA1 Ach input1 21 OutH Hch output
6 InB1 Bch input1 22 OutG Gch output
7 InC Cch input 23 OutF Fch output
8 InD Dch input 24 OutE Ech output
9 InE Ech input 25 OutD Dch output
10 InF Fch input 26 OutC Cch output
11 InG1 Gch input1 27 OutB Bch output
12 InH1 Hch input1 28 OutA Ach output
13 InG2 Cch input2 29 AREF Analog reference potential
14 InH2 Dch input2 30 V- Power supply(-)
15 MUTE External mute control 31 AREF Analog reference potential
16 REF Digital reference potential 32 V+ Power )
NJU72750 (INPUT : IC473, IC474, IC478)
No. Symbol Function No. Symbol Function
1 V+ Power ) 17 DATA IC control data input
2 InA1 Ach input1 18 CLOCK IC control clock input
3 InB1 Bch input1 19 NC -
4 InA2 Ach input2 20 NC -
5 InB2 Bch input2 21 OutB3 Bch output3
6 InA3 Ach input3 22 OutA3 Ach output3
7 InB3 Bch input3 23 REF_B Bch reference potential
8 InA4 Ach input4 24 OutB2 Bch output2
9 InB4 Bch input4 25 OutA2 Ach output2
10 InA5 Ach input5 26 REF_A Ach reference potential
11 InB5 Bch input5 27 OutB1 Bch output1
12 InA6 Ach input6 28 OutA1 Ach output1
13 InB6 Bch input6 29 NC -
14 InA7 Ach input7 30 ADR0 Address selection pin 0
15 InB7 Bch input7 31 ADR1 Address selection pin 1
16 REF BIAS reference potential 32 V- Power supply(-)
6 1 1
17 32
6 1 1
17 32
NJU72751 (INPUT : IC475)
No. Symbol Function No. Symbol Function
1 V+ Power ) 17 CLOCK IC control clock input
2 ADR0 Address selection pin 0 18 NC -
3 InA1 Ach input1 19 OutB4 Bch output4
4 InB1 Bch input1 20 OutA4 Ach output4
5 NC - 21 NC -
6 InA2 Ach input2 22 OutB3 Bch output3
7 InB2 Bch input2 23 OutA3 Ach output3
8 NC - 24 REF_B Bch reference potential
9 NC - 25 REF_A Ach reference potential
10 InA3 Ach input3 26 OutB2 Bch output2
11 InB3 Bch input3 27 OutA2 Ach output2
12 NC - 28 NC -
13 InA4 Ach input4 29 OutB1 Bch output1
14 InB4 Bch input4 30 OutA1 Ach output1
15 REF BIAS reference potential 31 ADR1 Address selection pin 1
16 DATA IC control data input 32 V- Power supply(-)
6 1 1
17 32
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