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BP25 PREAMP MAIN SCHEMATIC Rev 1.5e 17 Aug 2000 WP IR receiver replaced with updated part RPM6938 (Rohm) Rev 1.6 09 Aug 2001 ST HEADPHONE MUTE WIRING SHOWN Rev 1.6A 15 APRIL O2 ST ADD 1MEG TO + BUFFER INPUT Rev 1.61 26 Sept 01 WP 20N cap in RC reveiver (45027) repalced with 22n and the 49K9 in parallel with it is chgd to 45K3. Two 1000u/50v caps on output of 8v regulator replaced with single 2200u/35v cap. Rev 1.7 1 Aug 03 WP Corrected dwg error to gndng at sel.sw. inputs RadioFans.CN 收音机爱 好者资料库
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