Sony DNW-A75 Maintenance Manual

Also see for 10001: Installation manual Installation manual Operation manual Maintenance manual Maintenance manual

1-20 DNW-A75/A75P1-10-3. DM-89 BoardnNever change the settings of the factory use switches.SwitchesRef. No. Bit Name Description Factory settingS101 Y-RF LPF & EQ TEST The Y-RF low-pass filter & equalizer test NORMAL POSITION(Y-RF low-pass filter & signal connection switchequalizer test) To adjust: Select the TEST position.Connect the input signal toTP103. (GND to E102)S102 ————— Factory use NORMAL POSITIONS301 C-RF LPF & EQ TEST The C-RF low-pass filter & equalizer test NORMAL POSITION(C-RF low-pass filter & signal connection switchequalizer test) To adjust: Select the TEST position.Connect the input signal toTP303. (GND to E302)S302 ————— Factory use NORMAL POSITIONS501 ————— Factory use ONS901 1 RF ADJUSTING Selection whether to adjust the RF or not. OFF (OPEN)OFF (OPEN) : Normal modeON (CLOSE) : Test (adjustment) mode2 ————— Factory use OFF (OPEN)|41-10. Switch and Shorting Plug Settings on PC BoardsDM-89 Board (Side A)nRefer to Section 2-13 for remov-ing/reattaching the plug-in board.A B C D E F GS901DM-891234567A1-648-541- MADE IN JAPANLOTNO, S NO,S501S301S101S102A No.ONOFFS302TESTONOFFNORTEST NORTEST NORTEST NOR< Top View >