Used ICs - TMP47C200BN_LB1630_NJN206800_AN7062P_TA7317P
* Before switching the power ON, set
the master volume control to the minimum position and the balance volume to the
center positions. Also set semi-fixed
resistors R755(L ch) and R756(R ch) on PCB P701 to the center positions.
* Each of the cement resistors R767(L ch) and R768(R ch) on the PCB P701 is provided with three test points. Connect a digital voltmeter, set for the DC voltage
input, to the test points at the two extremities of the three test points of R767 or R768.
* After the setup above, switch the power ON, and adjust semi-fixed resistors R755(L ch) and R756(R ch) on PCB P701 according to the digital voltmeter reading. The target setting value is 10 mV(50 mA) for both the L ch and R ch.
resistors R755(L ch) and R756(R ch) on PCB P701 to the center positions.
* Each of the cement resistors R767(L ch) and R768(R ch) on the PCB P701 is provided with three test points. Connect a digital voltmeter, set for the DC voltage
input, to the test points at the two extremities of the three test points of R767 or R768.
* After the setup above, switch the power ON, and adjust semi-fixed resistors R755(L ch) and R756(R ch) on PCB P701 according to the digital voltmeter reading. The target setting value is 10 mV(50 mA) for both the L ch and R ch.
SYSCON - SCHEMATIC & PWB
MAIN AMP - SCHEMATIC & PWB
CLICK ON THE PICTURES TO MAGNIFY
