Audio Pro B1.39 Manual de usuario
Bias adjustment B1.39
Input signal 50-60Hz.
Connect a 4Ωload to output.
Adjust output level to 3.5-4V RMS and leave the amp to warm up for about 20
minutes.
Set output level to 0 and adjust VR1 for 1.5-3mV after about 1 minute.
Note! Check that Q07A (2SC3421) has a perfect contact surface against the cooling
flange.
B1.39
PART-NUMBER
DESCRIPTION
LOCATION
ASS'Y PCB POWER AMP AND SUPPLY BOARD
ADB-BR62
DIODE BRIDGE BR62 200V 6A
D06
AIC-NJM2072D
IC SIGNAL LEVEL SENSOR SYSTEM NJM2072D
IC3
AIC-TA7317P
IC TA7317P
IC2
AIC-TL071
IC TL071
IC1
ARL-01-7001
RELAY 24V 1P1T OMIT-SS-124LM
K1
ADD-1N4004*TAP52
DIODE RECTI 1N4004 TAPING 52MM
D03-05
ADD-1N4148*TAP52
DIODE SWITCH 1N4148 52MM
D01,02
ADZ-1N5231B
DIODE ZENER 1N5231B 0.5W 5.1V +-5%
ZD3
ADZ-1N5245B
DIODE ZENER 1N5245B 0.5W 15V +-5%
ZD1-2
ATR-BC546B
TR BC546B (&)
Q01,03,14,16
ATR-BC556B
TR BC556B
Q02,04,15
ATR-BF422
TR BF422
Q06
ATR-BF423
TR BF423
Q05
ECD-050T102M
CAP CER NP 1NF/50 +-20%
C16
ECD-050T104M
CAP CER 50V 0.1UF +-20%
C09
ECD-050T221M
CAP CER 50V 220P +-20%
C04,05,06
ECD-050T222M
CAP CER 50V 0.0022uF +-20%
C01
ECD-050T223M
CAP CER 50V 0.022UF +-20%
C08
ECD-050T470M
CAP CER 50V 47PF +-20%
C07
ECE-025T107M
CAP ELE 25V 100UF +-20%
C42,43
ECE-025T226M
CAP ELE 25V 22U +-20%
C14
ECE-025T476M
CAP ELE 25V 47U +-20%
C12,13
ECE-050T106M
CAP ELE 50V 10UF +-20%
C02,03,10,18,26,45,46
ECE-050T474M
CAP ELE 50V 0.47UF +-20%
C15
ECE-100T105M
CAP ELE 100V 1U +-20%
C25
ECM-050T104J
CAP MYLAR 50V 0.1u +-5%
C11
ECM-100T104J
CAP MYLAR 100V 0.1uF +-5%
C23,24
ERB-251Y121J
RES FR 1/4W Y 120 +-5%
R14,18
ERB-251Y150J
RES MO 1/4W Y 15 +-5%
R15
ERB-251Y221J
RES FR 1/4W Y 220 +-5%
R20
ERB-251Y2R2J
RES FR 1/4W Y 2.2 +-5%
R19,21
ERB-251Y391J
RES FR 1/4W Y 390 +-5%
R10,11
ERC-121Y102J
RES CF 1/8W Y 1K +-5%
R02
ERC-121Y103J
RES CF 1/8W Y 10K +-5%
R01,43,45
B1.39
PART-NUMBER
DESCRIPTION
LOCATION
ERC-121Y122J
RES CF 1/8W Y 1.2K +-5%
R05
ERC-121Y123J
RES CF 1/8W Y 12K +-5%
R30
ERC-121Y153J
RES CF 1/8W Y 15K +-5%
R51
ERC-121Y183J
RES CF 1/8W Y 18K +-5%
R36
ERC-121Y221J
RES CF 1/8W Y 220 +-5%
R52
ERC-121Y222J
RES CF 1/8W Y 2.2K +-5%
R03
ERC-121Y272J
RES CF 1/8W Y 2.7K +-5%
R44
ERC-121Y274J
RES CF 1/8W Y 270K +-5%
R38
ERC-121Y333J
RES CF 1/8W Y 33K +-5%
R04,08,53
ERC-121Y473J
RES CF 1/8W Y 47K +-5%
R28,29,34,37
ERC-121Y562J
RES CF 1/8W Y 5.6K +-5%
R07,09,35,40
ERC-121Y563J
RES CF 1/8W Y 56K +-5%
R31,42,49
ERC-251Y103J
RES CF 1/4W Y 10K +-5%
R06,12
ERC-251Y123J
RES CF 1/4W Y 12K +-5%
R55
ERC-251Y152J
RES CF 1/4W Y 1.5K +-5%
R27
ERC-251Y183J
RES CF 1/4W Y 18K +-5%
R48
ERC-251Y221J
RES CF 1/4W Y 220 +-5%
R13
ERC-251Y222J
RES CF 1/4W Y 2.2K +-5%
R16
ERC-251Y223J
RES CF 1/4W Y 22K +-5%
R26
ERC-251Y332J
RES CF 1/4W Y 3.3K +-5%
R50
ERC-251Y471J
RES CF 1/4W Y 470 +-5%
R17
ERC-251Y563J
RES CF 1/4W Y 56K +-5%
R39
ECE-016V108M
CAP ELE 16V 1000U +-20%
C17
ECE-080V688M
CAP ELE 80V 6800uF +-20% (30*50)
C21,22
ELC-02-7001
COIL CHK 2UH +-10% L-R2U
L01
ERB-202L152J
RES MO 2W L 1K5 +-5% P=20mm
R41
ERB-202L4R7J
RES MO 2W L 4.7 +-5% P=20mm
R32,33
ERB-202L681J
RES MO 2W L 680 +-5% P=20mm
R54
ERB-202LR22J
RES MO 2W L 0.22 +-5% P=20mm
R22-25
ERB-302L222J
RES MO 3W L 2K2 +-5% P=20mm
R46,47
ERV-F07-501B01
VR SEMI ST F 7MMD 500B
VR1
TRL-7002
THERMAL PROTECTOR 17AM024A5
TH1
ASS'Y PCB HIGH/LOW LEVEL IN/OUT
ECJ-100A107K
CAP ELND 100V/100uF +-10%
C1-2
ASS'Y PCB INPUT AND FILTER BOARD
B1.39
PART-NUMBER
DESCRIPTION
LOCATION
AIC-TL072
IC DVAL OP AMP TL072
IC101-2
ADD-1N4148*TAP52
DIODE SWITCH 1N4148 52MM
D101-6
ECD-050T470M
CAP CER 50V 47PF +-20%
C110
ECD-050T473M
CAP CER NP .047U/50 +-20%
C106-7
ECM-050T102J
CAP MYLAR 50V 1000pF +-5%
C101
ECM-050T104J
CAP MYLAR 50V 0.1u +-5%
C112-3
ECM-050T124J
CAP MYLAR 50V 0.12U +-5%
C114
ECM-050T333J
CAP MYLAR 50V 0.033U +-5%
C108-9
ECM-050T683J
CAP MYLAR 50V 0.068U +-5%
C115
ECZ-063T474J-1
CAP MTLZ 63V 0.47uF +-5% MINI
C103
ECZ-063T684J-1
CAP MTLZ 63V 0.68uF +-5% MINI
C111
ERB-501Y102J
RES MO 1/2W Y 1K +-5%
R112-3
ERC-121Y101J
RES CF 1/8W Y 100 +-5%
RA1
ERC-121Y123J
RES CF 1/8W Y 12K +-5%
R121A
ERC-121Y153J
RES CF 1/8W Y 15K +-5%
R122
ERC-121Y154J
RES CF 1/8W Y 150K +-5%
R118
ERC-121Y183J
RES CF 1/8W Y 18K +-5%
R120
ERC-121Y221J
RES CF 1/8W Y 220 +-5%
R101
ERC-121Y272J
RES CF 1/8W Y 2.7K +-5%
R121B
ERC-121Y472J
RES CF 1/8W Y 4.7K +-5%
R117
ERC-121Y473J
RES CF 1/8W Y 47K +-5%
R119
ERC-251Y153J
RES CF 1/4W Y 15K +-5%
R108-9
ERM-121Y1002F
RES MF 1/8W Y 10K +-1%
R103
ERM-121Y1802F
RES MF 1/8W Y 18K +-1%
R114,115
ERM-251Y3903F
RES MF 1/4W Y 390K +-1%
R106,107,110,111
ERB-202P220J
RES MO 2W P 22 +-5%
R105
SWL-7016
SW TOGGLE
SW1
VRR-7045
VR ROT 16MMD 20KB*2 H=15mm
VR102
VRR-7049
VR ROT 16MMD 50KA*1 +-20%
VR101
ADL-8S704
LED DC 5mmD L-59EGW
ATR-2SA1306B
TR 2SA1306B
Q09
ATR-2SA1962
TR 2SA1962
Q11,13
ATR-2SC3298B
TR 2SC3298B
Q08
ATR-2SC3421
TR 2SC3421
Q07
ATR-2SC5242
TR 2SC5242
Q10,12
B1.39
PART-NUMBER
DESCRIPTION
LOCATION
MISCELLANEOUS
ECW-250V472M
CAP Y-TYPE 4700pF/250V +-20%
FUH-1004
FUSE HOLDER FOR 5*20MM SEMKO
FUS-01-2001S
FUSE UL/CSA 5*20mm 2A/250V SB
JK3-L01-709
JACK RCA L 1P GOLD PLATED
JK7-7012
JACK BINDING POST CL-B261
M04-P631
BINDING POST PLUG BLACK (A414B-3)
M04-P632
BINDING POST PLUG RED (A414R-3)
M11-P652
KNOB A KGA003-01
WPC-7019
POWER CORD H05VV-F 1.8M
XFM-3009
XFORMER AUDIO I/P EI-86 115/230V KGA008-
WAS-7369
WIRE ASS'Y 1P RCA PLUG*2(GOLD) 6M BAK
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