Marshall_jvm210h_block_diagram 电路图 维修原理图.pdf

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1、53 CLEAN SHAPE V6:AV6:BV7:AV7:BV8:AV8:B V5 V1 V2 V3 V4 PHASE SHIFTER EMULATED LINE OUT OUTPUT VALVES (1 & 4 NOT USED IN 50W) V9:B REVERB MIXER CATHODE FOLLOWER REVERB BYPASS PRE-AMP OUT / SEND PRE-AMP OUT / RETURN POWER AMP INSERT SERIES LOOP V9:A LOOP RECOVERY CATHODE FOLLOWER SENDRETURN MIX SPEAKE

2、R OUT MASTER 2 MASTER 1 PRESENCERESONANCE CLEAN CRUNCH OD FX LOOP BYPASS PARALLEL LOOP CLEAN / CRUNCH GAIN GAINOD / GAIN INPUT GREEN : V6:A, V7:B ORANGE RED : V6:A, V7:A GAIN OFF, V7:B : V6:A, V7:A, GAIN ON, V7:B GREEN ORANGE RED : V6:A, V7:A GAIN ON, V7:B : V6:A, V6:B, V7:A GAIN OFF, V7:B : V6:A, V6:B, V7:A GAIN ON, V7:B CLEAN / CRUNCH OVERDRIVE CRUNCH VOL CLN / CR TONE OD TONE +4 / -10 OD VOL GAIN STAGES VALVE CHART V5 V4 V9V8V7V6 V3V2V1 REVERB LEVEL 52 JVM 2 Channel Block Diagram 收音机爱好者资料库 Ra d i o Fa n s .CN