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HA7Z Left hand channel Power amp
S:\STUART\SERV1186.SCH
Cyrus III i (HA7Z)
Gain = 52.25AV=34.36dB
Freq Resp:
4.5Hz to 79KHz
1mA 1mA 1mA 3mA 4.3mA R124 5.5mA 10mA
+VCC
R103 R111 R113 4R7
NFR
T101 560R 820R 100R GND_IP C112
BC856B 47uF
C102
47uF 63V
63V T111 C107
2SA1038S 150pF
T102 GND_PSUL
BC856B
GND_PSUL LB+ T117
T109 T119
+CCS_L 2SC2389S
BC846B R139 R118 2SC3421-Y
T121
DNF 2k
2SD1047
R104 D104
560R
LB- 1N4002
T105A T113
IMZ1A BD235
R107 C119 OC+L Set bias current to 20mA
24R DNF
or 8mV across the bias
R109 R121 R123 R128 C114
socket, when warm.
560R 220R 100nF
24R C105 100k
T105B R115
IMZ1A SK101
R135
39pF 150R SKTBIAS FIT WITH LINK
C101 0R22 SK102
HA7Z Left hand channel Power amp
R102 R116 R136
LIS_L
22uF 2k 820R 0R22
16V
SMD R101 C104 T106A R137 R138
IMZ1A
22k 1nF 22k 3R9
R110 R117 R119 R122
COG 24R 16R 820R 100k
C118 C115
R108 C120
DNF OC-L
GND_IP GND_IP 24R 1nF 100nF SK103
T106B C109 T114
IMZ1A 2200uF RV101 BC846B
6V3 D105
c Cyrus Electronics Ltd
R105 GND_OP_L
560R R120 T122 1N4002
GND_IP R140
DNF 2k 2SB817
T110 100R
-CCS_L T118 T120
BC856B
2SA1038S 2SA1358-Y
GND_PSUL
T103
BC846B GND_PSUL
T112 C108
2SC2389S 150pF
C103
47uF C113
T104
63V R106 R112 R114 GND_IP 47uF
BC846B
560R 820R 100R 63V
R125
-VCC
4R7
NFR
13-Aug-2001