JVC XL-SV205GD, Руководство по обслуживанию

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XL-SV205GD
U10: 74HCU04 (HEX INVERTER)
Pin configuration
Pin description
Pin No. Pin Name Description
1 BIAS IN Input for Bias-amplifier
2 OPIN1(+) Non inverting input for CH1 OP-AMP
3 OPIN1(-) Inverting input for CH1 OP-AMP
4 OPOUT1 Output for CH1 OP-AMP
5 OPIN2(+) Non inverting input for CH2 OP-AMP
6 OPIN1(-) Non inverting input for CH2 OP-AMP
7 OPOUT2 inverting input for CH2 OP-AMP
8 GND Substrate ground
9 STBY1 Input for CH1/2/3 stand by control
10 PowVcc1 Vcc for CH1/2 power block
11 VO2(-) Inverted output of CH2
12 VO2(+) Non inverted output of CH2
13 VO1(-) Inverted output of CH1
14 VO1(+) Non inverted output of CH1
15 VO4(+) Non inverted output of CH4
16 VO4(-) Inverted output of CH4
17 VO3(+) Non inverted output of CH3
18 VO3(-) Inverted output of CH3
19 PowVcc2 Vcc for CH3/4 power block
20 STBY2 Input for CH4 stand by control
21 GND Substrate ground
22 OPOUT3 Output for CH3 OP-AMP
23 OPIN3(-) Inverting input for CH3 OP-AMP
24 OPIN3(+) Non inverting input for CH3 OP-AMP
25 OPOUT4 Output for CH4 OP-AMP
26 OPOUT4(-) Inverting input for CH4 OP-AMP
27 ) Non inverting input for CH4 OP-AMP
28 PreVcc Vcc for pre block
U9: BA5983FM (BTL DRIVER)
Block diagram