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C
B
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LO-PASS
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R30 |
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R49 |
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700Hz Lo-Pass |
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LOPASS |
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16k5 |
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383k |
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100k Lin Pot |
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C7 |
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C27 |
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R25 |
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LOPASS |
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33nF |
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47k |
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3n3F |
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C31 |
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R31 |
100k Lin Pot |
R27 |
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R51 |
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R59 |
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R4 |
R24 |
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16k5 |
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8k25 |
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U1 |
47nF |
38k3 |
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U2 |
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7 |
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4k7 |
47k |
22k |
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U2 |
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TL 082 |
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TL 082 |
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C26 |
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C14 |
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10nF |
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330nF |
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HI-PASS / EQ |
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R58 |
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D4 |
D2 |
4k64 |
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1N4148 |
1N4148 |
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PHASE SW |
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C20 |
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R35 |
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R50 |
R33 |
DIODE CLIPPER |
SPDT |
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100nF |
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R36 |
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332k |
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150R |
150R |
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C18 |
C19 |
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8k66 |
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R39 |
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R52 |
R57 |
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8 |
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1k |
1k |
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9 |
U1 |
36k5 |
100nF |
100nF |
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U1 |
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R2 |
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LM324 |
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R48 |
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LM324 |
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8k66 |
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R37 |
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6k98 |
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8k66 |
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SPKR LEV IO C16 |
SPKR LEV IO |
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5k LOG |
REMOTE |
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200uF |
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R40 |
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LEVEL 1 |
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R |
R |
68k |
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2 |
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C33 |
POT. |
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L |
L |
220pF |
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C15 |
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+15V |
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V+ |
200uF |
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High Level Out |
High Level In |
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U1 |
C17 |
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V- |
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100R |
100R |
100k |
100k |
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-15V |
100nF |
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C1 |
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R54 |
R53 |
R43 |
R42 |
C9 |
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4700uF |
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100nF |
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2 Clr LED |
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R55 |
R56 |
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LED1 |
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100R |
100R |
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LED |
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L IP |
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DRIVE |
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R21 |
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RCA |
R44 |
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R20 |
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10k |
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4k7 |
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LED2 |
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10k |
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Q2 |
N/F |
R22 |
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2N3906 |
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2k2 |
D3 |
R19 |
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1N4749A |
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1k |
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R26 |
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Q1 |
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1000K |
MPSA13 |
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C13 |
R18 |
C11 |
R32 |
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R45 |
330k |
470k |
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100uF |
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R IP |
10k |
10nF |
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RCA |
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RCA Connector |
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FUSE (On FUSE PCB) |
SW |
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LINE LEVEL INPUT |
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TRX |
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To AC Feed |
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To Power Cord |
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To GND |
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0.5A |
C add |
10nF |
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To AC Return |
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To Power Cord |
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MCI 4340E |
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TRANSFORMER IS MOUNTED ON FACPLATE |
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SHORT CIRCUIT PROTECT |
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R7 |
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+6V Supply |
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3k3 |
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R8 |
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C8 |
100nF |
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Q3 |
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S53 |
2N4401 |
47k |
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MODULE |
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Q5 |
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D6 |
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D add |
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R46 |
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MPSA56 |
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MPSA56 |
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1N4735A |
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+6V |
Q4 |
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1N5234B |
47R |
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R5 |
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R9 |
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2k |
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1k |
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UVLO |
V+ |
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R6 |
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D1 |
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R4A |
R4B |
R4C |
1k |
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R16 |
1N5256B |
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L4 |
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470R |
R1 |
O/P |
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1R.0 |
1R.0 |
1R.0 |
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Jumper |
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1M5 |
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C6 |
C24 |
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V- |
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10uF |
100nF |
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L2 |
L1 |
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L3 |
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2.2uH |
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110uH |
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Jumper |
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+15V |
C3 |
OUTPUT FILTER |
R15 |
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100k |
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330nF |
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C4 |
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S/D |
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100nF |
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H |
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QUICK FIT TERMINAL |
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SPK- |
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CZ |
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N/F |
G |
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QUICK FIT TERMINAL |
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SPK+ |
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CW |
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N/F |
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FR |
R3 |
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F |
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D10 |
33k2 |
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C29 |
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1N4744A |
I/P |
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0R |
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D9 |
GND |
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C5 |
1N4744A |
-15V |
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100nF |
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E |
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R17 |
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AC Feed |
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470R |
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QUICK FIT TERMINAL |
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BR RECT |
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CMC |
C7A |
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GND |
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V+ |
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V- |
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100nF |
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QUICK FIT TERMINAL |
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C7B |
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AC Return |
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2m2H |
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100nF |
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QUICK FIT TERMINAL |
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RS604 |
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C2 |
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D |
4700uF |
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C10 |
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C25 |
C12 |
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+15 |
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L OP |
N/F |
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H-Pass Pot. |
From L IP RCA |
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RCA |
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U3 |
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N/F |
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N/F |
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N/F |
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J4 |
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TL 082 |
N/F |
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R11 |
R10 |
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C28 |
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-15 |
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N/F |
N/F |
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N/F |
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J5 |
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C |
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N/F |
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4 |
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5 |
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J6 |
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N/F |
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6 |
C32 |
C30 |
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From R IP RCA |
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U3 |
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J7 |
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N/F |
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R OP |
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N/F |
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R13 |
R12 |
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TL 082 |
N/F |
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RCA |
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N/F |
N/F |
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B |
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Part No: |
MBD-04020102 |
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Model Name: |
BU-120E |
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Date: |
17-Oct-2000 |
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a |
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A |
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Drawn: |
MS/LL |
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Rev. |
2 |
Sheet: 1 of |
1 |
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9 |
10 |
11 |
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12 |
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13 |
14 |
15 |
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