Marshall_2203_MV_Layout 电路图 维修手册.pdf

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1、OT A A Choke OTChoke Filament AC Fil. & Bias Grounds Stock Heyboer 100W PT Primary Secondary CT Bias Tap HT Fuse 56k/2W 56k/2W 50/5050/50 50/5050/50 50/50 + + + + - - - - - - - - - - - - - - Note - Power transformer primary connections (Power Cord/IEC Socket, Mains Fuse, AC Switch Indicator Lamp) an

2、d OT secondary connections (OT Secondary Leads, Impedance Selector, Output Jacks) omited. Mains Filter V3 Filter PresenceBassMidsTreble .1u 1M-A 1M-A1M-A 250k-L25k-L25k-L 1k5/5k6 1k5/5k6 120v 220v 240v Common To Mains Fuse For US 120v tap to AC Switch HV Secondary 10k/2W8.2k/2W 10k/2W .022u .022u .0

3、22u .022u .1u 470k 820 470 100k / 47k 27k 470k 100k 100k 100k 1M 1M 10k 100k 220k 82k 220k 15k 47p 500p 10k/2W .022u .022u 47k 100k 1R 2W 1R 2W 1R 2W 1R 2W 1k 5W 1k 5W 1k 5W 1k 5W .68u 2.7k 10k/2W .022u Lo 470k * * * *Note - Tone stack values vary. Use either 33k and 500p, or 56k and 250p. 500p Standby Master Volume Preamp Volume 1M Hi 68k 4.7k RadioFans.CN 收音机爱 好者资料库