· th124 dcsense p3-5 p3-3 mute r15 3.3k +77v.ch2 fault r85 10 c15 104 q3 a56 r14 47k p3-4 fault...
TRANSCRIPT
2 0
Two Channel Amplifier Harman Kardon SIGNATURE 1.5
HGF
F G H
EDCBA
A B C D E
JI L MK O
O
P
PL MI J K
1ALL RESISTORS ARE 1/8WUNLESS OTHERWISE SPECIFIED
SET BIAS ACROSSP4-1, P4-2 TO 18 MVBY ADJUSTING R69
1.
2.
NOTES
R951.3K
R981.3K
C35102
R97100
R94100
C34102
R751.0K
R771.0K
Q482SA1376
AGND2
C23476
100V
R120
1K
C38
10V477
CHANNEL 1INPUT
J5RCA/1S
T2
TS
GND2
R119100K
C47271
R11833,2K
GND2
F48A
C14104E
200V
+77VOC.CH2
Q57A06
Q55A06
D16D1N4148
C3310V477
C25
10P500V
MUTE
R10247K
Q532SC2240
Q522SC2240
R99
120
R96
120 R53
33.2K
BAV20D12
R591.5K
GND2
GND2
C19181M500V
Q492SA1376
R7175
P2-1
Q102SC5242
Q112SC5242
Q182SC5242
Q262SC5242
Q272SC5242
Q192SC5242
R27R1W.33
R23R1W.33
R19R1W.33
1
2 4
3
BR2
F28A C6
80V828
C580V828C10
104E200V
P1-2
P1-1
P1-3R5
6.8K2W
-77VDC.CH2
R731.0K
R761.0K
GND2
R721.0K
55833
Q252SA1962
Q242SA1962
Q172SA1962
Q162SA1962
Q82SA1962
Q92SA1962
R22R1W.33
R26R1W.33
R18R1W.33
1 2
RES/IND.2UH2UH
R107RES-5W
1�
s
31
R117750
R103180
GND2
D10D1N4148
C37476
100V
C882880V
R36.8K2W
C780V828
GND2
P3-7+12 VDC
J3 2
TST
3
S1
PHONE JACK3.5MM
R106
10K
R104
100
P3-6
R10510K
STAND BY
THERM SWITCH
GNDP3-2
P3-1
THERSWTH124
DCSENSE
P3-5
P3-3MUTE
R153.3K
+77V.CH2
FAULT
R85
10
C15104
Q3A56
R14
47K
P3-4 FAULTSENSE
D51N4004
-77VDC.CH2
GND2
C32104
100V
R5375
Q342SC3502
R741.0K
Q472SC3478
BAV20D11
R5415K R69
500
R571K
C17100
R565.6K
Q43A56
Q352SC4793
1
2
3
Q402SA1376 1
2
3
1
2
3
R43
100
L32UH
Q332SA1827
R38R1W.33
R34R1W.33
R30R1W.33
P2-2
2
3
1
2
13
R10
100
CH2_OUTPUT
Q362SA1380
R5815K
R81
10
Q412SC3478
R44100
R701.2K R45
100
R39R1W.33
R55R1W.33
R31R1W.33
C11106
R1347K
R12
10K
22222 2
33333 3
11111 1L4
2UH
2
3
1
Q372SC4793
C24104
100V
GND2
FAULT
Q22SC3478
D2D1N4148
D61N4004
+77VDC.CH2
RL2
CHANNEL 2OUTPUT
R11
47KDCSENSE
GND2
R111102W
�R112102W
�
C41104E100V
C46271
CHGNDC45271
BINDPOST
BLK
RED
J2
Signature 1.5 POWER AMPLIFIERSCHEMATIC 1 of 2
Signature 1.5 POWER AMP SCHEMATIC (1 of 2)
2 1
Two Channel Amplifier Harman Kardon SIGNATURE 1.5
Signature 1.5 POWER AMP SCHEMATIC (2 of 2)
HGF
F G H
EDCBA
A B C D E
JI L MK O
O
P
PL MI J K
1
R871.3K
R901.3K
C30102
R89100
R86100
C29102
R661.0K
Q452SA1376
GND1
C20476
100V
ALL RESISTORS ARE 1/8WUNLESS OTHERWISE SPECIFIED
SET BIAS ACROSSP4-1, P4-2 TO 18 MVBY ADJUSTING R60
1.
2.
NOTES
R115
1K
C40
10V477
CHANNEL 1INPUT
J4RCA/1S
T2
TS
GND1R115100K
C44271
R11433,2K
GND1
1
1
2
2
R79
15.8K1/4W
R80
15.8
K1/
4W
GND2
SW
T-2P
2T-H
SLI
DE
4 5 6
1 2 3
S1
CH2_OUTPUT
F38A
C13104E
200V
+77VOC.CH1
Q54A06
R101180
Q56A06
D15D1N4148
GND1
R113750
C2810V477
C22
10P500V
MUTER10047K
Q502SC2240
Q512SC2240
R91
120
R88
120 R52
33.2K
BAV20D9
R521.5K
GND1
C18181M500V
Q462SA1376
R681.0K
R6275
R78
10
Q312SA1380
Q392SC3478
Q322SC4793
R5115K
21
3 L2
2UHR611.2K
GND1R42
100
P4-1
3
1 1 1
2 2
3
2
3 3 3 3
2 2 2
1 1 1
Q232SC5242
Q222SC5242
Q152SC5242
Q142SC5242
Q72SC5242
Q62SC5242
R41100
R37R1W.33
R33R1W.33
R29R1W.33
R25R1W.33
R21R1W.33
R17R1W.33
C12106
R5
10K
R947K
D1D1N4148 Q1
2SC3478
FAULT
GND1
D41N4004
C21104
100V
1
2 4
3
BR1
F18A
C380V828
C280V828
C180V828
C480V828
C9
104E200V
P5-2
P5-1
P5-3
R26.8K2W
R46.8K2W
R1102W
�GND1
CHGND
C36476
100V
-77VDC.CH1
R641.0K
R651.0K
R671.0K
R4675 R84
10
1
3
2
Q382SA1376
Q292SC3502
1
3
2
Q282SA1837
L12UH
R40
100Q30
2SC4793R501K
R60500
C1610650V
BAV20D8
R4715K
GND1
Q442SC3478
R631.0K
R495.6K
R4833
Q42A56
13
2
Q212SA1962
Q202SA1962
Q132SA1962
Q122SA1962
Q42SA1962
Q52SA1962
13
2
P4-2R6
100
R20R1W.33
R24R1W.33
R28R1W.33
R32R1W.33
R36R1W.33
R16R1W.33
+77VDC.CH1
CHANNEL 1OUTPUT
1 2
RL1
RES/IND.2UH2UH
R107RES-5W
1�
R109102W
�R108102W
�
C43271
J1
RED
BLK
BINDPOSTGND1
C42271
CHGNDC39104E100V
R7
47KDCSENSE
-77VDC.CH1
D21N4004
GND1
C27104
100V
D7D1N4148
1
3
S
Signature 1.5 POWER AMPLIFIERSCHEMATIC 2 of 2