JVC KD-S641, Руководство по обслуживанию

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KD-S641
(No.49769)1-37
• Pin function
*1 Frame (FR) at the center becomes system GND(P-GND) power . Please give (*O) as the lowest potential with system GND(S-
GND) signal.
*2 Be short-circuited of VCC_S (signal system power supply) and VCCP1 and VCCP2 (output steps power supply) on the out-
side.
Pin No. Symbol Function
1 VIN1-A CH1 input AMP_A reversing input
2 VIN1+A CH1 input AMP_A non-reversing input
3 VCCP1 CH1 and CH2 power steps power supply
4 VO1+ CH1 Output terminal (+)
5 VO1- CH1 Output terminal (-)
6 VO2+ CH2 Output terminal (+)
7 VO2- CH2 Output terminal (-)
8 VO3+ CH3 Output terminal (+)
9 VO3- CH3 Output terminal (-)
10 VO4+ CH4 Output terminal (+)
11 VO4- CH4 Output terminal (-)
12 VCCP2 CH3 and CH4 power steps power supply
13 VIN4 CH4 Input terminal
14 VIN4G CH4 Input terminal(For gain adjustment)
15 VIN3 CH3 Input terminal
16 VIN3G CH3 Input terminal(For gain adjustment)
17 VIN2 CH2 Input terminal
18 VIN2G CH2 Input terminal(For gain adjustment)
19 REGIN External PNP transistor base connection
20 REG-OUT 5VREG output terminal and external PNP transistor collector connection
21 VCCS Signal system power supply
22 VREFIN Standard voltage impression terminal
23 MUTE Output ON/OFF terminal
24 VIN1_SW CH1 input OP_AMP switch terminal
25 S_GND Signal system GND
26 VIN1+B CH1 AMP_B non-reversing input terminal
27 VIN1-B CH1 AMP_B reversing input terminal
28 VIN1 CH1 input terminal and input OP_AMP output terminal