Mackie PPM Series Bedienungsanleitung

PPM seriesProfessional Powered Mixers:406M, 408M, 808M, 408S and 808SSERVICE MANUAL1999, 2000 MACKIE DESIGNS, INC.820-185-00EFXMONHI12kHzHI12kHzMID2

10808M/808S Power AmplifierTheory of OperationThe power amplifier used in the 800 series powered mixer is typically referred to as havinga high effici

11Referring to the channel-1switching circuit shownhere. There are two pairs ofjumper resistors. The firstpair (R121, R106) allow bothclass-H switches

12R104 (Both 2.2K ohms) allowing around 1.4mA to flow into pin-12. This current flows out ofpin-3 and approximately half of it flows through D38 / R83

13WARNING: FUSIBLE RESISTORS MUST ONLY BE REPLACED BY THE EXACT REPLACEMENT PARTS.ALWAYS CHECK THE PARTS LISTS TO VERIFY WHICH RESISTORS ARE THE FUSIB

14Power ConsumptionWith no signal and no load, the power consumption from the AC mains should be:Variac Power consumptionUp to 40vac < 5WUp to 60va

15Power ConsumptionWith no signal and no load, the power consumption from the AC mains should be:Variac Power consumptionUp to 40vac < 3WUp to 60va

16EFX signal flowDAMPING/DEPTHTIME/RATEEFX WIDEEFXLREFXEFXTO MONITOREFXTO MAINEFX BYPASSEFX CLIPEFX RETURN LEFX SENDOff to +10dBOff to +12dBOff to +10

17J1-1J1-2J1J1-3J1-4J1-5J1-6J1-7J1-8J1-9J1-10J1-11J1-12J1-13J1-14J1-15J1-16FLAG INBANK+5VDGNDMONO INAGNDRIGHT OUTLEFT OUTPOT1POT2CLIP_LEDN/CBIT 0BIT 1

18FLAG INBANK+5VDGNDMONO INAGNDRIGHT OUTLEFT OUTPOT1POT2CLIP_LEDN/CBIT 0BIT 1BIT 2BIT 3EFX overviewThe EFX circuit board schematics and pcb layouts ar

19J35On the 206 mixercircuit board,this is J31 121110987654321LEFT COMPRIGHT COMPLEFT AMPLEFT AMP GNDRIGHT AMP GNDRIGHT AMP+5V-16V+16VConnectorsMIXER

2 SER

20OUTPUT BOARDThe amplifier channel outputs connect to J3 on the output board.J3ORANGE, CH2 ( + )GREY, CH2 ( - )BLACK, CH1( - )RED, CH1 ( + )

3CONTENTSIntroduction ...3Overview...

4OverviewThe powered mixer series consists of 5 models: the 406M, 408M, 408S, 808M and 808S. Eachconsists of five circuit boards: Effects, Amplifier,

5808S front panelThe Amplifierboard isconnected to therear panelheatsink.The Outputboard and ACPower board arefitted to the rearpanel.The Effectsboard

6Block diagram (Mono models: 406M, 408M, 808M)63 1252505001K2K4K8K 16KEFX RET LEFX RET REFX WIDE1050-5-10-15-30-40-20dBLRMID HI80 2K5 12KLO75HzHPF1050

7Block diagram (Stereo models: 408S, 808S)63 1252505001K2K4K8K 16KDAMPING/DEPTHTIME/RATEEFX WIDE1050-5-10-15-30-40-20dBLRMID HI80 2K5 12KLO75HzHPF75Hz

8Maximum Voltage GainMic Input to Insert Output: 40 dB Tape Output: 60 dB Main Mixer Output: 72 dBLine Input to Insert Output: 20 dB Tape Ou

9Maximum Power at 1% THD,midband, both channelsdriven406M, 408M, 408S250 watts per channel into 2Ω200 watts per channel into 4Ω125 watts per channel i