BP25 PREAMP
MAIN SCHEMATIC
Rev 1.5e 17 Aug 2000 WP
IR receiver replaced with updated part
RPM6938 (Rohm)
Rev 1.7 1 Aug 03 WP
Corrected dwg error to gnd'ng at selector
switch inputs
REVISION HISTORY
Rev 1.8 2004-04-08 WP
Updated PSU schematic and corrected
phono input adding 220pF cap.
August 2002
Revision 5
MPS1
Rev 1.6 09 Aug 2001 ST
HEADPHONE MUTE WIRING SHOWN
Rev 1.61 26 Sept 01 WP
20N cap in RC reveiver (45027) repalced
with 22n and the 49K9 in parallel with it
is chg'd to 45K3. Two 1000u/50v caps on
output of 8v regulator replaced with
single 2200u/35v cap.
Rev 1.6A 15 APRIL O2 ST
ADD 1MEG TO + BUFFER INPUT
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