Marantz SR8000 Service Manual - Page 34

9. ELECTRICAL ADJUSTMENTS 1. DC offset adjustment Master Volume : Minimum, Speaker out : non Load Step 1 Power on Channel Front L Center Front R Surr. L Surr. R Adjustment Point R767 RT67 R768 RP67 RT68 Test Point Speaker Output Terminal Adjustment Vaule ± 20mV Note : If the measured value is not exceed ±50mV, no need to adjust the DC offset. 2. Iding current adjustment Master Volume : Minimum, Speaker out : non Load Step 1 2 Power Power on after 4 minutes Channel Front L Center Front R Surr. L Surr. R Adjustment Point R737 RT67 R738 RP37 RP38 Test Point J706(1p-2p) or R761 J706(3p-4p) or RT61 J707(3p-4p) or R762 J708(3p-4p) or RP61 J707(1p-2p) or R762 J***:4P Connecter [between 1p-4p] R***:Emitter Resister Adjustment Vaule The center position see table for adjustment vaule Time since power on 1 minutes 1 minutes 30 seconds 2 minutes 2 minutes 30 seconds 3 minutes More than 4 minutes Idling current adjust. 2.8 - 3.4 mV 3.8 - 4.4 mV 4.8 - 5.6 mV 5.6 - 6.2 mV 6.2 - 6.8 mV 6.8 - 7.4 mV 58