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I21 Integrated Amplifier
Service Manual
1. Circuit Diagrams
2. Adjustment
3. Technical Specifications
Confidential !
This document is not allowed to show for third part without written permission
from Primare Systems AB.
This document is subject to change without notice.
Author:
Bjorn Holmqvist
Primare Systems AB
[email protected]
D1 PMLL4148
1 2 3 4 5 6 7 8
D11 BDY17D
LM317T R42 nc
3 1
Vout Vin D3 C22 47u/63V S9
R24
GND
REG1
- CONFIDENTIAL - +40Vreg
R10 316R R22 10K
100R/4W
C24
BDY17D
T250MA R51
22R
R54
22R
100u/63V D5
2
3u3 50V C4 BDY17D
C27 3u3 50V
D12 BDY17D
+6.1Vreg C26 D6
1u/63v C12 D14 BDY17D C43 100u/63V BDY17D
R50 3u3 50V
R200 BDY17D T250MA S10 R56
Z1 3u3 50V R23
330k 1K C28 22R
2
R6 316R R17 10K 100R/4W
D VDD1 D4 C2347U/63V D
4
22V C15 R26 R53
GND
U2 1u/63v Z200 -40Vreg
nc 22R
2 3V9 3 1
R52 Vout Vin D7
6
3 R48 REG2 C37 470N PMLL4148
10K
330k P5 P4 LM337T
OP-176 HEADER 2 HEADER 2 Z202 D2
Z2 3V9 D13 BDY17D
7
1
2
1
2
PML4148
VSS2
C38 470N
22V R202 P3
1K 5
4
0R22 2W 0R22 2W
R2 -6.1Vreg 3
R154 R55 2
9k1 1
C44
HEADER 5
+40VREG C45
-14V C3 10mF 50V +40VL 100N
R1 R9 + 100N 4way screw term
Lline C17 100N C202 FUSE T5A/250V
68R
4
390R 100N
U102A D202 4
3 P1
2 C203 + C46S1
C6 C47 FUSE T5A/250V
100N 2
1
Q7 R18 100N 10mF 50V 100N BRIDGE 10A 1
3 2K2 -40VL
S5
C39 OPA2604 S6
BC856 R11 1
100N
8
33k 2
C11 10mF 50V C204 +40VR P2
RESET FUSE, 4 Amp + C50 FUSE T5A/250V 3
Q3 Q8 C5 100N C48 S2 4
+14V 100N
1 R19 470P Q4 2SD1760 100N 4way screw term
D9 PMLL4148 (0 OHM) Q17 D203
330R BC846 S4 +40VL
R38 3 2 BCP53 C13 + C205
FUSE T5A/250V R59 10R
1K.M STBY1 Q21 Relay power 8A/24V
C19 100N 10mF 50V -40VR C49 BRIDGE 10AC51
2SK170GR
2SC3281
C 1N5 C2 R33 100N 100N R5810R C214 P6A C
R37 R228
R3 100K R32 D201 PIN
R5710R
8
7
6
5
10K K1 4.7R 2W
R8 R62 R36 PMLL4148 100N PIN
100R 100N 2K2 R34 330R L1
R20
100R Trim
100K
COIL COIL
NC2
N02
C2
68k 2K2 INDUCTOR P6B
R7 100N
BC846 Q6 R61 Q37 1K PIN
R45 C9 PIN
CW R65 10R
NO1
NC1