Denon PMA 350SE Hi-Fi Integrated Stereo amplifier Schematic – Idling Current adjustment

Integrated Hi-Fi amplifier – Denon PMA-350SE –Circuit diagram:  Used semiconductors - NJM5532DD, HD404222, BA6208, 2SD2390, 2SB1560

Power output  50W + 50W into 8 Ohms
                       80W + 80W into 4 Ohms
Power consumption 160W

Schematic (Circuit Diagram)  Click on the pictures to zoom in

Idling current adjustment

Lay the unit at an ordinary position away from a direct current from an air condition or fan.  Do the adjustment at a temperature between 15 ~ 30 degree C.
Set the controls:
Power switch – Off
Volume control: fully counterclockwise [Minimum]
Speaker terminals: open.  Do not connect the speakers, dummy load etc
Adjustment
Remove the top cover.  Connect the DC voltmeter to test points of KU 9358-1 printed wiring board (Main unit)
Connect power cord to AC and turn the power switch ON.  Within 10 seconds turn VR 351 (LCH) and VR352 (RCH) clockwise so that the DC voltmeter reads 10 +/-- 0.5mV DC.
After 2 minutes warm up adjust VR351 and VR352 so that the DC voltmeter reads 10 +/-- 0.5mV DC.
After 10 minutes warm up ajust VR351 and VR352 again so that the DC voltmeter reads 10 +/-- 0.5mV DC.