Forssell-8chSum-mix-sch 电路图 维修手册.pdf

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1、123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:29-Jun-2003Sheet of File:C:Websiteprotel databasewebsite.ddbDrawn By: 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual L

2、inear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5

3、 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 5k Log (audio) Taper 1 2 3 A 25k

4、Dual Linear 4 5 6 B 25k Dual Linear 22k 22k 15k 15k CW CW CW Pin #2/Tip 3 2 6 A OPA604 10k 1k 49.9 Ohm 10k Left Output 1 2 3 A 50k Log Taper Dual 4 5 6 B 50k Log Taper Dual 3 2 6 A OPA604 10k 1k 49.9 Ohm 10k Right Output Passive Mixer with Line Driver Output Pin #3/Ring Pin #3/Ring Pin #3/Ring Pin #

5、3/RingPin #3/Ring Pin #3/Ring Pin #3/Ring Pin #3/Ring Pin #1/Sleeve Pin #1/Sleeve Pin #1/Sleeve Pin #1/SleevePin #1/Sleeve Pin #1/Sleeve Pin #1/Sleeve Pin #1/Sleeve XLR or TRS Jack Chassis Ground XLR or TRS Jack Chassis Ground XLR or TRS Jack Chassis Ground XLR or TRS Jack Chassis Ground XLR or TRS

6、Jack Chassis Ground XLR or TRS Jack Chassis Ground XLR or TRS Jack Chassis Ground XLR or TRS Jack Chassis Ground RadioFans.CN 收音机爱 好者资料库 123456 A B C D 654321 D C B A Title NumberRevisionSize B Date:29-Jun-2003Sheet of File:C:Websiteprotel databasewebsite.ddbDrawn By: 5k 5k Pin 1/Sleeve Pin 2/Tip Pi

7、n 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS

8、Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Ti

9、p Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack 5k Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack Pin 1/Sleeve Pin 2/Tip Pin 3/Ring XLR or TRS Jack Pin 1/Sle

10、eve Pin 2/Tip Pin 3/Ring XLR or TRS Jack Summed Output Summed Output Input #1 Input #2 Input #3 Input #4 Input #5 Input #6 Input #7 Input #8 Input #1 Input #2 Input #3 Input #4 Input #5 Input #6 Input #7 Input #8 Balanced Input SummingUn-Balanced Input Summing Note. To prevent ground loops, you can

11、use a 0.1mfd ceramic cap from pin #1/Sleeve to chassis ground, instead of a hardwire connection. The Source impedance (looking back into the output connector) is appox 600 ohms with the values shown. The Input impedance for each input is appox 5.7k ohms. Load impedance (the input impedance of the device to which the output of the summing buss is attached) should be 10k ohms or higher. Chassis Ground 8 Channel Passive Summing Busses RadioFans.CN 收音机爱 好者资料库