Text preview for : Krell-300i pwramp.pdf part of Krell 300i power amplifier
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+VH
+
C64
+
C66 R105 R106 R125 D
D75 D C99
R121
R112
R111
+VP C73 D74 C55 Q57 Q58 Q59 Q60 Q28 Q30 Q31
R109 R122 Q38 Q53 R147 R114 R113 R149 Q70 Q64 Q65 Q66 D78 C R146 R123 Input R150 Q72 C68 F1 R127 R124 R141 R145 R104
+
R129
R130
R131
R132
R103 C
R143 R128
R137
R138
R139
Output R144 R142 R140
C62 Q69 Q67 C63 Q68 D79
R118
R117 R148
Q55 B R120
Q54
+
Q71 B
R133 R110 Q56 D68 Q34 Q36 C61 Q61
R134
R135
R136
Q62
Q63
Q29
-VP C75 D69 R119 R116 R115 R107 R108 R126
-VH C100
+
C67
+
C65 A Title Size B Date: File: 1-Dec-2003 F:\pcb1\krell kav300i.DDB Sheet of Drawn By: Number Revision
A
D +VH D25 R71 R61 R62 R53
D
D24 Q44 Q38 Q53 R72 R63 R64
Q35 C17
Q32 D1
C
R1
C
R73 Input Hot R77 D2 Stage output
R78
R2 Input Cold R74 R67 R68 Q33 R70 B D19 Q37 C18 Q41 Q43 B Q42 D3
D18
R69
R65
R66
R55
-VH
C3
C4
R3
U1 A Title Size B Date: File: 1-Dec-2003 F:\pcb1\krell kav300i.DDB Sheet of Drawn By: Number Revision A
D
D
1
AC P1
D?
F3 +VPR 2 F4 +VPL
R201 R202
Q25 TO OP-97 +R R43 TO OP-97 +L
4
AC P2 C
3
+
C94
+
C95
+
C86
+
C49
C43
+
+
C44 C
C21
C42
D39
C40
+
C93
+
C92
+
C74
+
C50
C45
+
C46 C47
+
C48
1
AC P3
D? F5 -VPR F6 -VPL AC P4 B 3 R203 R204 Q26 R44 TO OP-97 -R TO OP-97 -L
2
4
B
A Title Size B Date: File: 1-Dec-2003 F:\pcb1\krell kav300i.DDB Sheet of Drawn By: Number Revision
A